Service Manual Split Type: RAV-SM562MUT-E

FILE NO.
A06-005
SERVICE MANUAL
SPLIT TYPE
<DIGITAL INVERTER>
INDOOR UNIT
RAV-SM562MUT-E
This Service Manual describes contents of the new indoor unit.
For the outdoor unit, refer to the Service Manual with FILE NO. A05-001.
R410A
PRINTED IN JAPAN, Aug.,2006 ToMo
ADOPTION OF NEW REFRIGERANT

This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the conventional
refrigerant R22 in order to prevent destruction of the ozone layer.
WARNING
Cleaning of the air filter and other parts of the air filter involves dangerous work in high places, so be sure to
have a service person do it. Do not attempt it yourself. The cleaning diagram for the air filter is there for the
service person, and not for the customer.
CONTENTS
1. SPECIFICATIONS .......................................................................................................... 3
1-1. Indoor Unit .............................................................................................................................................. 3
1-2. Combination Specifications of Indoor Units with Outdoor Units ...................................................... 4
1-3. Operation Characteristic Curve ............................................................................................................ 5
2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) ............................................................ 6

2-1. Indoor Unit .............................................................................................................................................. 6
3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM .................................................... 7

3-1. Indoor Unit/Outdoor Unit ....................................................................................................................... 7
4. WIRING DIAGRAM....................................................................................................... 10
4-1. Indoor Unit ............................................................................................................................................ 10
5. SPECIFICATIONS OF ELECTRICAL PARTS .............................................................. 12

5-1. Indoor Unit ............................................................................................................................................ 12
6. REFRIGERANT R410A ................................................................................................ 13

6-1.
6-2.
6-3.
6-4.
6-5.
6-6.
6-7.
6-8.
6-9.
Safety During Installation/Servicing ..................................................................................................

Refrigerant Piping Installation ..........................................................................................................
Tools .....................................................................................................................................................
Recharging of Refrigerant ...................................................................................................................
Brazing of Pipes ...................................................................................................................................
Tolerance of Pipe Length and Pipe Head ...........................................................................................
Additional Refrigerant Amount ...........................................................................................................
Piping Materials and Sizes ..................................................................................................................
Branch Pipe ..........................................................................................................................................
13
13
17
18
19
21
22
23
23
7. CONTROL BLOCK DIAGRAM..................................................................................... 24

7-1. Indoor Control Circuit .......................................................................................................................... 24
7-2. Control Specifications ......................................................................................................................... 25
7-3. Indoor Print Circuit Board ................................................................................................................... 32
8. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS .............................. 33

8-1. Indoor Control Circuit .......................................................................................................................... 33
9. TROUBLESHOOTING.................................................................................................. 35
9-1.
9-2.
9-3.
9-4.
Summary of Troubleshooting ..............................................................................................................

Check Code List ...................................................................................................................................
Error Mode Detected by LED on Outdoor P.C. Board .......................................................................
Troubleshooting Procedure for Each Check Code ............................................................................
35
37
40
41
10. REPLACEMENT OF SERVICE INDOOR P.C. BOARD ................................................ 57

11. SETUP AT LOCAL SITE AND OTHERS ...................................................................... 61
11-1. Indoor Unit ............................................................................................................................................ 61
11-2. Setup at Local Site / Others ................................................................................................................ 67
11-3. How to Set up Central Control Address Number .............................................................................. 71
12. ADDRESS SETUP ....................................................................................................... 72

12-1. Address Setup ..................................................................................................................................... 72
12-2. Address Setup & Group Control ......................................................................................................... 73
12-3. Address Setup ..................................................................................................................................... 74
13. DETACHMENTS ........................................................................................................... 76

13-1. Indoor Unit ............................................................................................................................................ 76
14. EXPLODED VIEWS AND PARTS LIST ........................................................................ 84

14-1. Ceiling Panel ........................................................................................................................................ 84
14-2. Compact 4-way Air Discharge Cassette Type .................................................................................... 85
1. SPECIFICATIONS
1-1. Indoor Unit
1-1-1. Compact 4-way Cassette Type
DI
DI TWIN
SDI
SDI TWIN
SM562MUT-E
SM562MUT-E
SM562MUT-E
SM562MUT-E
RAV-
SM562MUT-E
SM562MUT-E
RAV-
SM562AT-E
SM1102AT-E
SP562AT-E
SP1102AT-E
Cooling capacity
(kW)
5.0
10.0
5.0
10.0
Heating capacity
(kW)
5.6
11.2
5.6
11.2
Indoor unit
Model
Outdoor unit
RAV-
Power supply
1 phase 230V (220 240V) 50Hz

Running current
Power consumption
Cooling
(A)
7.02 to 7.75
14.96 to 16.32
6.6 to 7.15
10.31 to 11.24
(kW)
1.61
3.52
1.53
2.4
Power factor
EER
(%)
95
98
97
97
(W/W)
3.11
2.84
3.27
4.17
Energy efficiency class
4.0
4.5
(A)
7.04 to 7.72
13.35 to 14.56
6.62 to 7.21
10.95 to 11.95
Power consumption
(kW)
1.61
3.14
1.54
2.55
Power factor
(%)
95
98
97
97
(W/W)
3.48
3.57
3.64
4.39
4.5
4.5
Energy rating
Electrical
chracteristics
Running current
Heating
COP
Energy efficiency class

Energy rating
Main unit
Appearance
Zinc hot dipping steel plate
Ceiling panel
Main unit
Outer
dimension
Model
Panel color
Moon-white (Muncel 2.5GY 9.0/0.5)
Height
(mm)
268
Width
(mm)
575
Depth
(mm)
575
Height
(mm)
27
(mm)
700
(mm)
700
(kg)
17
Ceiling panel
Width
(Sold separately)
Depth
Total weight
RBC-UM11PG (W)-E
Main unit
Ceiling panel (Sold separately)
Heat exchanger
Finned tube
Fan
Fan unit
Turbo fan
Standard air flow
H/M/L
Motor
(m/min.)
13.3 / 11.2 / 9.1
(W)
60
Air filter
(Content)
Long life filter
Controller (Sold separately)
(Content)
Remote controller
Connecting pipe
Gas side
(mm)
12.7
Liquid side
(mm)
6.4
Drain port
VP25
Sound pressure level
H/M/L
(dBA)
43 / 39 / 34
Sound power level
H/M/L
(dBA)
58 / 54 / 49
Note 1 : The cooling capacities and electrical characteristics are measured under the conditions speciied by JIS B 8616 based
on the reference piping 7.5m.
Note 2 : The sound level is measured in an anechoic chamber in accordance with JIS B8616. Normally, the values measured in
the actual operating environment become larger than the indicated values due to the effects of external sound.
Note 3 : Rated conditions
Cooling : Indoor air temperature 27C DB/19C WB, Outdoor air temperature 35C DB
Heating : Indoor air temperature 20C DB, Outdoor air temperature 7C DB/6C WB
Note 4 : DI : Digital Inverter, SDI : Super Digital Inverter
1-2. Combination Specifications of Indoor Units with Outdoor Units

Indoor Unit
RAV-SM562MUT-E
Outdoor Unit
RAV-SP562AT-E
Standard capacity (Note 1)

Energy consumption effect ratio
Cooling
Heating
(kW)
5.30 (2.20-5.60)
5.60 (2.20-7.10)
(W/W)
3.46
4.67
Power supply
Running current
1 phase 230V (220-240V) 50Hz

(A)
7.17-6.57
5.62-5.15
Power consumption
(kW)
1.53
1.20
Power factor
(%)
97
97
Electrical characteristics
Sound level
Indoor unit
High/Mid./Low
(Note 2)
(dBA)
32/29/27
Note 1 : The cooling capacities and electrical characteristics are measured under the conditions specified by JIS B 8616 based
on the reference piping 7.5m.
Note 2 : The sound level is measured in an anechoic chamber in accordance with JIS B8616. Normally, the values measured in
the actual operating environment become larger than the indicated values due to the effects of external sound.
Note 3 : Rated conditions
Cooling : Indoor air temperature 27C DB/19C WB, Outdoor air temperature 35C DB
Heating : Indoor air temperature 20C DB, Outdoor air temperature 7C DB/6C WB
1-3. Operation Characteristic Curve

<Digital Inverter>
RAV-SM562MUT-E / RAV-SM562AT-E
<Heating>
10
10
Current (A)
Current (A)
<Cooling>
4
Conditions
Indoor : DB27C/WB19C
Outdoor : DB35C
Air flow : High
Pipe length : 7.5m
230V
4
Conditions
Indoor : DB20C
Outdoor : DB7C/WB6C
Air flow : High
Pipe length : 7.5m
230V
0
0
20
40
60 70 80
100
Compressor speed (rps)
20
40
60
80 90 100
<Super Digital Inverter>

RAV-SM562MUT-E / RAV-SP562AT-E
<Cooling>
<Heating>
10
12
10
Current (A)
Current (A)
8
6
4
4
Conditions
Indoor : DB27C/WB19C
Outdoor : DB35C
Air flow : High
Pipe length : 7.5m
230V
Conditions
Indoor : DB20C
Outdoor : DB7C/WB6C
Air flow : High
Pipe length : 7.5m
230V
0
0
20
40 50 60 70 80
100
20
40
60 70 80 90 100
2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

2-1. Indoor Unit
595 to 660 Ceiling open dimension
1000 or more
Check port
( 450)
Stand-up
850 or less
Indoor unit
Bottom face
of ceiling
Note)
As ABS is used for the drain discharge port of the main unit,
the vinyl chlor paste cannot be used.
Use the flexible hose (Band fix) included in the package.
4
207
175
149
200
Drain-up standing-up size
2.7
Space required for

installation and servicing
Check port
( 450)
Stand-up
627.5
or less
1000 or more
120
Wired remote
controller
(RBC-AMT31E)
16
368.5
268
Knockout for flesh

air intake 100
63
Electric parts box
For branch duct knockout

square hole 150
320.5
575 Unit external dimension
Wiring
connection
port
Refrigerant pipe
(Liquid) 6.4
For branch ductt
knockout square
hole 150
Refrigerant pipe
(Gas) 12.7
Bottom face of ceiling
Bottom face
of ceiling
Ceiling panel
162
97.5
162
134
142
177
510 Hanging bolt pitch
700 Panel external dimension
235
105
235
70
575 Unit external dimension
105
145.5
120
525 Hanging bolt pitch
Drain discharge port

Hanging bolt
M10 or W3/8
local arrange
21
700 Panel external dimension

256
145.5
93
27
220.5
105
148
Bottom face
of ceiling
64
158
64
29
120
142
214
42
15 or more
Obustacle
Check port
( 450)
200
1000 or more
15 or more
200
55
70
105
93
139.5
190.5
3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM

3-1. Indoor Unit/Outdoor Unit
Single type (Combination of one indoor unit and one outdoor unit)
Heating time
Cooling time
RAV-SM562MUT-E
Distributor
(Strainer
incorporated)
Indoor unit
TCJ sensor
Air heat
exchanger
TC sensor
Refrigerant pipe
at liquid side
Outer diameter 6.4
Refrigerant pipe
at gas side
Outer diameter 12.7
To outdoor unit
To outdoor unit
Twin type (Combination of two indoor units and one outdoor unit)
RAV-SM562MUT-E
Indoor A unit
Distributor
(Strainer
incorporated)
Heating time
Cooling time
RAV-SM562MUT-E
Distributor
(Strainer
incorporated)
TCJ sensor
Air heat
exchanger
TCJ sensor
Air heat
exchanger
TC sensor
Refrigerant pipe
at liquid side
Outer diameter 6.4
Indoor B unit
TC sensor
Refrigerant pipe
at gas side
Outer diameter 12.7
Refrigerant pipe
at liquid side
Outer diameter 6.4
Refrigerant pipe
at gas side
Outer diameter 12.7
Branch pipe
Branch pipe
Refrigerant pipeat liquid side
Outer diameter 9.5
Refrigerant pipe at gas side

Outer diameter 15.9
To outdoor unit
To outdoor unit
RAV-SM562MUT-E / RAV-SP562AT-E
Indoor unit
TCJ
sensor
Air heat exchanger
TC sensor
Outer diameter of refrigerant pipe
Gas side A
Liquid side B
12.7mm
6.4mm
* The refrigerating cycle of the indoor units differs according to

the models to be combined. For the refrigerating cycles of the
other indoor units, refer to the corresponding Service Manuals
described in the list on the cover.
Refrigerant pipe
at gas side
Outer dia. A
Refrigerant pipe
at liquid side
Outer dia. B
Min. Max.
5m 50m
Pd
Packed valve
Outer dia. A
Outdoor unit
Ps
Modulating
(PMV)
(SKV-18D26)
Strainer
TS sensor
Packed valve
Outer dia. B
TO sensor
TD sensor
Strainer
TE
sensor
4-way valve
(STF-0213Z)
Muffler
Accumulator
(1500cc)
25 L210
25 L160
Heat exchanger8
1 row 30 stages
FP1.3 flat fin
Capillary
32
L530
Rotary compressor
(DA220A2F-20L)
R410A 1.5 kg
Cooling
Heating
Pipe surface temperature (C)
Pressure
(MPa)
Cooling
Heating
Discharge
Suction
Compressor
Indoor heat Outdoor heat revolutions per
exchanger
exchanger
second (rps)
Indoor
fan
Pd
Ps
(TD)
(TS)
(TC)
(TE)
Standard
2.71
1.03
75
15
10
38
43
HIGH
Indoor/Outdoor
temp. conditions
(DB/WB) (C)
Indoor
Outdoor
27/19
35/
Overload
3.48
1.16
81
20
16
51
44
HIGH
32/24
43/
Low load
1.92
0.74
34
11
24
LOW
18/15.5
5/
Standard
2.22
0.72
62
38
41
HIGH
20/
7/6
Overload
3.47
1.16
81
20
55
15
41
LOW
30/
24/18
Low load
1.79
0.25
71
16
30
18
70
HIGH
15/
20/(70%)
* 4 poles are provided to this compressor.

*
The compressor frequency (Hz) measured with a clamp meter is 2 times of revolutions (rps) of the compressor.
For the details of the outdoor units during twin combination of a digital inverter and a super digital inverter, refer to
page 34 (Digital Inverter) and also page 37 (Super Digital Inverter) of the Service Manual File No.A05-018.
RAV-SM562MUT-E / RAV-SM562AT-E
Indoor unit
TCJ
sensor
Air heat exchanger
TC sensor
Outer diameter of refrigerant pipe
Gas side A
Liquid side B
12.7mm
6.4mm
Refrigerant pipe
at gas side
12.7
Packet valve
Packed valve
Outer dia. A
Refrigerant pipe
at liquid side
6.4
Packet valve
Outdoor unit
PMV
(Pulse Motor Valve)
(CAM-B30YGTF-1)
TS sensor
TO sensor
2-step muffler
19 .05 200L
Min. Max.
5m 30m
Packed valve
Outer dia. B
TD sensor
Strainer
4-way valve
(STF-0108Z)
TE
sensor
Heat exchanger
8 ripple, 2 rows,
14 steps
FP1.3 flat fin
Muffler
19 L160
Rotary compressor
(DA150A1F-20F)
Distributor
R410A 1.0 kg
Cooling
Heating
Pressure
(MPa)
Pd
Pipe surface temperature (C)
(kg/cmG)
Ps
Discharge
Suction
(TD)
(TS)
Indoor/Outdoor
Compressor
Indoor heat Outdoor heat revolutions per Indoor temp. conditions
(DB/WB) (C)
fan
exchanger
exchanger
second (rps)
(TC)
(TE)
Indoor Outdoor
Ps
Pd
Standard 3.50
0.97
35.7
9.9
85
14
12
48
70
HIGH
Cooling Overload 3.90
1.08
39.8
11.0
93
26
17
54
70
Low load 1.90
0.70
19.4
7.1
48
30
50
27/19
35/
HIGH
32/24
43/
LOW
18/15.5
5/
Standard 2.31
0.61
13.6
6.2
87
40
97
HIGH
20/
7/6
Heating Overload 2.86
0.89
29.2
9.1
86
17
47
11
95
LOW
28/
24/18
Low load 1.86
0.25
19.0
2.6
69
14
31
15
98
HIGH
15/
10/(70%)
* 4 poles are provided to this compressor.

*
The compressor frequency (Hz) measured with a clamp meter is 2 times of revolutions (rps) of the compressor.
For the details of the outdoor units during twin combination of a digital inverter and a super digital inverter, refer to
page 34 (Digital Inverter) and also page 37 (Super Digital Inverter) of the Service Manual File No.A05-018.
4. WIRING DIAGRAM
4-1. Indoor Unit
TA
FS
CN34
(RED)
3 3
2 2
1 1
LM1
5
4
3
2
1
LM2
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
TC
Connection interface (option)
1 2
1 2
1 2
1 2
1 2
1 2
1 2 3
1 2
1 2
CN104
(YEL)
CN102
(RED)
CN101
(BLK)
CN80
(GRN)
CN73
(RED)
CN70
(WHI)
(EXCT)
MCC-1402
5
4
3
2
1
CN33
(WHI)
5
4
3
2
1
TCJ
Control P.C. Board for

Indoor Unit
FM
Motor
drive
circuit
CN68 1 2 3
(BLU) 1 2 3
RY
303
1 2 3
CN304
(GRY)
U3 U4
Terminal for
central remote
controller
2 2 CN001
1 1 (WHI)
3 3
2 2
WHI
1 1
Fuse
F301
250V~
T6.3A
Adapter for
Wireless Remote
Controller
3
2 CN309
(YEL)
1
BLK
RY
302
1 2 CN40
1 2 (BLU)
6
5
4 CN60
3 (WHI)
2
1
WHI
1
2
3
4
5
5
4
P.C.
3 Board
2
1
BLK
CN334
(WHI)
1
2
3
4
5
5
4
3
2
1
6
5
4 CN61
3 (YEL)
2
1
Fuse
F302
T3.15A
250V~
5
4
3
2
1
5
4
3
2
1
(FAN DRIVE)
Power
supply
circuit
5
4
3
2
1
5
4
3
2
1
CN51
(RED)
2 CN32
1 (WHI)
DC20V
DC15V
DC12V
DC7V
CN333
(WHI)
CN50
(WHI)
P301
CN67 1 2 3 4 5
(BLK) 1 2 3 4 5
BLK 1 2
CN66
(WHI)
RED WHI BLK
CN41
(BLU)
B
A
BLK
B
A
WHI
Wired Renote
Controller
DP
1 2 3
Indoor unit
earth screw
NOTE
FM
TA
TC
TCJ
LM1,LM2
DP
FS
RY302
: Fan motor
: Indoor temp. sensor
: Temp. sensor
: Temp. sensor
: Louver motor
: Drain pump motor
: Float switch
: Drain control relay
1 2 3
Serial
signal
Single phase
220 to 240V
50Hz
L N
10
Outdoor unit
earth screw
Color
Identification
BLK
BLU
RED
GRY
PNK
GRN
WHI
BRN
ORN
YEL
:
:
:
:
:
:
:
:
:
:
BLACK
BLUE
RED
GRAY
PINK
GREEN
WHITE
BROWN
ORANGE
YELLOW
Single type
Power supply 220-240V
Single phase 50Hz
Outdoor unit
L
N
1 2 3
1 2 3
Indoor unit
Notes)
A B
A B
Wired remote controller

RBC-AMT31E
1.
: indicates a terminal block
2. Broken line and chain line indicate wiring at local site.
3. For the inner wiring diagram of the outdoor unit and the
indoor unit, refer to the wiring diagram of each model.
4. There is no polarity. It is no problem that the remote
controller is connected to the indoor unit terminal block
A and B reversely.
5. When using a wireless remote controller, connection of
the remote controller to A and B terminal blocks are
unnecessary.
Twin type
Power supply 220-240V
Single phase 50Hz
Outdoor unit
L
N
1 2 3
1 2 3
Indoor unit
No.1 (Master)
1 2 3
Earth
screw
A B
Indoor unit
No.2 (Sub)
A B
Notes)
A B
Wired remote controller

RBC-AMT31E
1.
: indicates a terminal block
2. Broken line and chain line indicate wiring at local site.
3. For the inner wiring diagram of the outdoor unit and the
indoor unit, refer to the wiring diagram of each model.
4. There is no polarity. It is no problem that the remote
controller is connected to the indoor unit terminal block
A and B reversely.
5. When using a wireless remote controller, connection of
the remote controller to A and B terminal blocks are
unnecessary. (Wire connection between indoor unit No.1
and No.2 is necessary.)
11
5. SPECIFICATIONS OF ELECTRICAL PARTS

5-1. Indoor Unit
No.
Parts name
Fan motor (for indoor)
Thermo. sensor (TA-sensor)
Type
SWF-230-60-1R
Specifications
Output (Rated) 60 W, 220240 V
155 mm
10 k at 25C
Heat exchanger sensor (TCJ-sensor)
6 mm, 1200 mm
10 k at 25C
Heat exchanger sensor (TC-sensor)
6 mm, 1200 mm
10 k at 25C
Float switch
Drain pump motor
FS-0218-106
ADP-1406
12
6. REFRIGERANT R410A
This air conditioner adopts the new refrigerant HFC
(R410A) which does not damage the ozone layer.
The working pressure of the new refrigerant R410A
is 1.6 times higher than conventional refrigerant
(R22). The refrigerating oil is also changed in
accordance with change of refrigerant, so be careful
that water, dust, and existing refrigerant or refrigerating oil are not entered in the refrigerant cycle of the
air conditioner using the new refrigerant during
installation work or servicing time.
The next section describes the precautions for air
conditioner using the new refrigerant. Conforming to
contents of the next section together with the
general cautions included in this manual, perform
the correct and safe work.
6-1. Safety During Installation/Servicing

As R410As pressure is about 1.6 times higher than
that of R22, improper installation/servicing may
cause a serious trouble. By using tools and materials exclusive for R410A, it is necessary to carry out
installation/servicing safely while taking the following
precautions into consideration.
1) Never use refrigerant other than R410A in an air
conditioner which is designed to operate with
R410A.
If other refrigerant than R410A is mixed, pressure
in the refrigeration cycle becomes abnormally
high, and it may cause personal injury, etc. by a
rupture.
2) Confirm the used refrigerant name, and use tools
and materials exclusive for the refrigerant R410A.
The refrigerant name R410A is indicated on the
visible place of the outdoor unit of the air conditioner using R410A as refrigerant. To prevent
mischarging, the diameter of the service port
differs from that of R22.
3) If a refrigeration gas leakage occurs during
installation/servicing, be sure to ventilate fully.
If the refrigerant gas comes into contact with fire,
a poisonous gas may occur.
4) When installing or removing an air conditioner, do
not allow air or moisture to remain in the refrigeration cycle. Otherwise, pressure in the refrigeration cycle may become abnormally high so
that a rupture or personal injury may be caused.
5) After completion of installation work, check to
make sure that there is no refrigeration gas
leakage.
If the refrigerant gas leaks into the room, coming
into contact with fire in the fan-driven heater,
space heater, etc., a poisonous gas may occur.
6) When an air conditioning system charged with a

large volume of refrigerant is installed in a small
room, it is necessary to exercise care so that,
even when refrigerant leaks, its concentration
does not exceed the marginal level.
If the refrigerant gas leakage occurs and its
concentration exceeds the marginal level, an
oxygen starvation accident may result.
7) Be sure to carry out installation or removal
according to the installation manual.
Improper installation may cause refrigeration
trouble, water leakage, electric shock, fire, etc.
8) Unauthorized modifications to the air conditioner
may be dangerous. If a breakdown occurs please
call a qualified air conditioner technician or
electrician.
Improper repairs may result in water leakage,
electric shock and fire, etc.
6-2. Refrigerant Piping Installation

6-2-1. Piping Materials and Joints Used
For the refrigerant piping installation, copper pipes
and joints are mainly used. Copper pipes and joints
suitable for the refrigerant must be chosen and
installed. Furthermore, it is necessary to use clean
copper pipes and joints whose interior surfaces are
less affected by contaminants.
1) Copper Pipes
It is necessary to use seamless copper pipes
which are made of either copper or copper alloy
and it is desirable that the amount of residual oil
is less than 40 mg/10 m. Do not use copper
pipes having a collapsed, deformed or discolored
portion (especially on the interior surface).
Otherwise, the expansion valve or capillary tube
may become blocked with contaminants.
As an air conditioner using R410A incurs pressure higher than when using R22, it is necessary
to choose adequate materials.
Thicknesses of copper pipes used with R410A
are as shown in Table 6-2-1. Never use copper
pipes thinner than 0.8 mm even when it is
available on the market.
13
Table 6-2-1 Thicknesses of annealed copper pipes

Thickness (mm)
Nominal diameter
Outer diameter (mm)
R410A
R22
1/4
6.35
0.80
0.80
3/8
9.52
0.80
0.80
1/2
12.70
0.80
0.80
5/8
15.88
1.00
1.00
2) Joints
For copper pipes, flare joints or socket joints are used. Prior to use, be sure to remove all contaminants.
a) Flare Joints
Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds
20 mm. In such a case, socket joints can be used.
Sizes of flare pipe ends, flare joint ends and flare nuts are as shown in Tables 6-2-3 to 6-2-6 below.
b) Socket Joints
Socket joints are such that they are brazed for connections, and used mainly for thick pipings whose
diameter is larger than 20 mm.
Thicknesses of socket joints are as shown in Table 6-2-2.
Table 6-2-2 Minimum thicknesses of socket joints
Nominal diameter
Reference outer diameter of

copper pipe jointed (mm)
Minimum joint thickness

(mm)
1/4
6.35
0.50
3/8
9.52
0.60
1/2
12.70
0.70
5/8
15.88
0.80
6-2-2. Processing of Piping Materials

When performing the refrigerant piping installation, care should be taken to ensure that water or dust does not
enter the pipe interior, that no other oil other than lubricating oils used in the installed air conditioner is used,
and that refrigerant does not leak. When using lubricating oils in the piping processing, use such lubricating oils
whose water content has been removed. When stored, be sure to seal the container with an airtight cap or any
other cover.
1) Flare Processing Procedures and Precautions
a) Cutting the Pipe
By means of a pipe cutter, slowly cut the pipe so that it is not deformed.
b) Removing Burrs and Chips
If the flared section has chips or burrs, refrigerant leakage may occur.
Carefully remove all burrs and clean the cut surface before installation.
14
c) Insertion of Flare Nut

d) Flare Processing
Make certain that a clamp bar and copper
pipe have been cleaned.
By means of the clamp bar, perform the flare
processing correctly.
Use either a flare tool for R410A or conventional flare tool.
Flare processing dimensions differ according

to the type of flare tool. When using a conventional flare tool, be sure to secure dimension
A by using a gauge for size adjustment.
D
A
Fig. 6-2-1 Flare processing dimensions

Table 6-2-3 Dimensions related to flare processing for R410A
A (mm)
Nominal
diameter
Outer
diameter
(mm)
Thickness
(mm)
Flare tool for
Conventional flare tool
R410A clutch type
Clutch type
Wing nut type
1/4
6.35
0.8
0 to 0.5
1.0 to 1.5
1.5 to 2.0
3/8
9.52
0.8
0 to 0.5
1.0 to 1.5
1.5 to 2.0
1/2
12.70
0.8
0 to 0.5
1.0 to 1.5
2.0 to 2.5
5/8
15.88
1.0
0 to 0.5
1.0 to 1.5
2.0 to 2.5
Table 6-2-4 Dimensions related to flare processing for R22

A (mm)
Nominal
diameter
Outer
diameter
(mm)
Thickness
(mm)
Flare tool for
Conventional flare tool
R22 clutch type
Clutch type
Wing nut type
1/4
6.35
0.8
0 to 0.5
0.5 to 1.0
1.0 to 1.5
3/8
9.52
0.8
0 to 0.5
0.5 to 1.0
1.0 to 1.5
1/2
12.70
0.8
0 to 0.5
0.5 to 1.0
1.5 to 2.0
5/8
15.88
1.0
0 to 0.5
0.5 to 1.0
1.5 to 2.0
Table 6-2-5 Flare and flare nut dimensions for R410A

Nominal
diameter
Outer diameter
(mm)
Thickness
(mm)
1/4
6.35
3/8
Dimension (mm)
Flare nut
width (mm)
0.8
9.1
9.2
6.5
13
17
9.52
0.8
13.2
13.5
9.7
20
22
1/2
12.70
0.8
16.6
16.0
12.9
23
26
5/8
15.88
1.0
19.7
19.0
16.0
25
29
15
Table 6-2-6 Flare and flare nut dimensions for R22
Nominal
diameter
Outer diameter
(mm)
Thickness
(mm)
1/4
6.35
3/8
Dimension (mm)
Flare nut width

(mm)
0.8
9.0
9.2
6.5
13
17
9.52
0.8
13.0
13.5
9.7
20
22
1/2
12.70
0.8
16.2
16.0
12.9
20
24
5/8
15.88
1.0
19.4
19.0
16.0
23
27
3/4
19.05
1.0
23.3
24.0
19.2
34
36
to 4
45
43
to 4
Fig. 6-2-2 Relations between flare nut and flare seal surface
2) Flare Connecting Procedures and Precautions

a) Make sure that the flare and union portions do not have any scar or dust, etc.
b) Correctly align the processed flare surface with the union axis.
c) Tighten the flare with designated torque by means of a torque wrench. The tightening torque for R410A is
the same as that for conventional R22. Incidentally, when the torque is weak, the gas leakage may occur.
When it is strong, the flare nut may crack and may be made non-removable. When choosing the tightening
torque, comply with values designated by manufacturers. Table 6-2-7 shows reference values.
Note)
When applying oil to the flare surface, be sure to use oil designated by the manufacturer.
If any other oil is used, the lubricating oils may deteriorate and cause the compressor to burn out.
Table 6-2-7 Tightening torque of flare for R410A [Reference values]
Nominal
diameter
Outer diameter
(mm)
Tightening torque
Nm (kgfcm)
Tightening torque of torque

wrenches available on the market
Nm (kgfcm)
1/4
6.35
14 to 18 (140 to 180)
16 (160), 18 (180)
3/8
9.52
33 to 42 (330 to 420)
42 (420)
1/2
12.70
50 to 62 (500 to 620)
55 (550)
5/8
15.88
63 to 77 (630 to 770)
65 (650)
16
6-3. Tools
6-3-1. Required Tools
The service port diameter of packed valve of the outdoor unit in the air conditioner using R410A is changed to
prevent mixing of other refrigerant. To reinforce the pressure-resisting strength, flare processing dimensions and
opposite side dimension of flare nut (For 12.7 copper pipe) of the refrigerant piping are lengthened.
The used refrigerating oil is changed, and mixing of oil may cause a trouble such as generation of sludge,
clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types.
1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))
2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)
3) Tools commonly used for R410A and for conventional refrigerant (R22)
The table below shows the tools exclusive for R410A and their interchangeability.
Tools exclusive for R410A (The following tools for R410A are required.)
Tools whose specifications are changed for R410A and their interchangeability
R410A
air conditioner installation
No.
Used tool
Usage
Existence of
new equipment
for R410A
Whether conventional equipment

can be used
Conventional air
conditioner installation
Whether new equipment
can be used with
conventional refrigerant
Flare tool
Pipe flaring
Yes
*(Note 1)
Copper pipe gauge for

adjusting projection
margin
Flaring by conventional
flare tool
Yes
*(Note 1)
*(Note 1)
Torque wrench
Connection of flare nut
Yes
Gauge manifold
Evacuating, refrigerant
charge, run check, etc.
Yes
Charge hose
Vacuum pump adapter
Vacuum evacuating
Yes
Electronic balance for

refrigerant charging
Refrigerant charge
Yes
Refrigerant cylinder
Refrigerant charge
Yes
Leakage detector
Gas leakage check
Yes
Charging cylinder
Refrigerant charge
(Note 2)
Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection
margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.
Note 2) Charging cylinder for R410A is being currently developed.
General tools (Conventional tools can be used.)

In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary
as the general tools.
4) Reamer
9) Hole core drill (65)
1) Vacuum pump
Use vacuum pump by
5) Pipe bender
10) Hexagon wrench
attaching vacuum pump adapter.
(Opposite side 4mm)
6) Level vial
2) Torque wrench
11) Tape measure
7) Screwdriver (+, )
3) Pipe cutter
12) Metal saw
8) Spanner or Monkey wrench
Also prepare the following equipments for other installation method and run check.
1) Clamp meter
3) Insulation resistance tester
2) Thermometer
4) Electroscope
17
6-4. Recharging of Refrigerant

When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the
following steps.
Recover the refrigerant, and check no refrigerant
remains in the equipment.
When the compound gauges pointer has indicated

0.1 Mpa (76 cmHg), place the handle Low in the
fully closed position, and turn off the vacuum pumps
power switch.
Connect the charge hose to packed valve service

port at the outdoor units gas side.
Keep the status as it is for 1 to 2 minutes, and ensure

that the compound gauges pointer does not return.
Connect the charge hose of the vacuum pump

adapter.
Set the refrigerant cylinder to the electronic balance,

connect the connecting hose to the cylinder and the
connecting port of the electronic balance, and charge
liquid refrigerant.
Open fully both packed valves at liquid and gas

sides.
Place the handle of the gauge manifold Low in the

fully opened position, and turn on the vacuum pumps
power switch. Then, evacuating the refrigerant in the
cycle.
(For refrigerant charging, see the figure below.)
Never charge refrigerant exceeding the specified amount.

If the specified amount of refrigerant cannot be charged, charge refrigerant bit by bit in COOL mode.
Do not carry out additional charging.
When additional charging is carried out if refrigerant leaks, the refrigerant composition changes in the
refrigeration cycle, that is characteristics of the air conditioner changes, refrigerant exceeding the
specified amount is charged, and working pressure in the refrigeration cycle becomes abnormally high
pressure, and may cause a rupture or personal injury.
(INDOOR unit)
(Liquid side)
(OUTDOOR unit)
Opened
(Gas side)
Refrigerant cylinder
(With siphon pipe)
Check valve
Closed
Open/Close valve
for charging
Service port
Electronic balance for refrigerant charging
Fig. 6-4-1 Configuration of refrigerant charging
18
Be sure to make setting so that liquid can be charged.

When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down.
It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant.
Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the
cylinder upside down if cylinder is not equipped with siphon.
[ Cylinder with siphon ]
[ Cylinder without siphon ]
Gauge manifold
Gauge manifold
OUTDOOR unit
OUTDOOR unit
Refrigerant
cylinder
Refrigerant
cylinder
Electronic
balance
Electronic
balance
Siphon
R410A refrigerant is HFC mixed refrigerant.

Therefore, if it is charged with gas, the composition of the charged refrigerant changes and the
characteristics of the equipment varies.
Fig. 6-4-2
6-5. Brazing of Pipes

6-5-1. Materials for Brazing
Phosphor bronze brazing filler tends to react
1) Silver brazing filler

Silver brazing filler is an alloy mainly composed
of silver and copper. It is used to join iron, copper
or copper alloy, and is relatively expensive though
it excels in solderability.
2) Phosphor bronze brazing filler

Phosphor bronze brazing filler is generally used
to join copper or copper alloy.
3) Low temperature brazing filler
Low temperature brazing filler is generally called
solder, and is an alloy of tin and lead. Since it is
weak in adhesive strength, do not use it for
refrigerant pipes.
with sulfur and produce a fragile compound

water solution, which may cause a gas
leakage. Therefore, use any other type of
brazing filler at a hot spring resort, etc., and
coat the surface with a paint.
When performing brazing again at time of
servicing, use the same type of brazing filler.
6-5-2. Flux
1) Reason why flux is necessary
By removing the oxide film and any foreign
matter on the metal surface, it assists the flow
of brazing filler.
In the brazing process, it prevents the metal
surface from being oxidized.
By reducing the brazing filler's surface tension,
the brazing filler adheres better to the treated
metal.
19
2) Characteristics required for flux

Activated temperature of flux coincides with the
brazing temperature.
Due to a wide effective temperature range, flux
is hard to carbonize.
It is easy to remove slag after brazing.
The corrosive action to the treated metal and
brazing filler is minimum.
It excels in coating performance and is harmless to the human body.
As the flux works in a complicated manner as
described above, it is necessary to select an
adequate type of flux according to the type and
shape of treated metal, type of brazing filler and
brazing method, etc.
3) Types of flux
Noncorrosive flux
Generally, it is a compound of borax and boric
acid.
It is effective in case where the brazing temperature is higher than 800C.
Activated flux
Most of fluxes generally used for silver brazing
are this type.
It features an increased oxide film removing
capability due to the addition of compounds
such as potassium fluoride, potassium chloride
and sodium fluoride to the borax-boric acid
compound.
4) Piping materials for brazing and used brazing filler/flux
Piping
material
Used brazing
filler
Copper - Copper Phosphor copper
6-5-3. Brazing
As brazing work requires sophisticated techniques,
experiences based upon a theoretical knowledge, it
must be performed by a person qualified.
In order to prevent the oxide film from occurring in
the pipe interior during brazing, it is effective to
proceed with brazing while letting dry Nitrogen gas
(N2) flow.
Never use gas other than Nitrogen gas.

(1) Brazing method to prevent oxidation
Attach a reducing valve and a flow-meter to
the Nitrogen gas cylinder.
Use a copper pipe to direct the piping material, and attach a flow-meter to the cylinder.
Apply a seal onto the clearance between the
piping material and inserted copper pipe for
Nitrogen in order to prevent backflow of the
Nitrogen gas.
When the Nitrogen gas is flowing, be sure to
keep the piping end open.
Adjust the flow rate of Nitrogen gas so that it
is lower than 0.05 m/Hr or 0.02 MPa (0.2kgf/
cm) by means of the reducing valve.
After performing the steps above, keep the
Nitrogen gas flowing until the pipe cools
down to a certain extent (temperature at
which pipes are touchable with hands).
Remove the flux completely after brazing.
Used
flux
Do not use
Copper - Iron
Silver
Paste flux
Iron - Iron
Silver
Vapor flux
M Flow meter
Stop valve
Nitrogen gas
cylinder
From Nitrogen cylinder
Do not enter flux into the refrigeration cycle.

When chlorine contained in the flux remains
within the pipe, the lubricating oil deteriorates.

Therefore, use a flux which does not contain
chlorine.
When adding water to the flux, use water
which does not contain chlorine (e.g. distilled
water or ion-exchange water).
Remove the flux after brazing.
Pipe
Nitrogen
gas
Rubber plug
Fig. 6-5-1 Prevention of oxidation during brazing
20
6-6. Tolerance of Pipe Length and Pipe Head

Model (RAV-)
Pipe length
(One Direction)
Height
Difference
1102AT
Full length
L + a or L + b
Below 50m
(actual length)
Branch piping
a, b
Below 15m
(actual length)
Difference of branch piping length

b a, or a - b
Below 10m
Outdoor unit
Indoor unit
H
Outdoor unit installed

above Indoor unit
Below 30m
Outdoor unit installed

below Indoor unit
Below 15m
Between Indoor units

h
Remarks
Below 0.5m
Less than 10 bends
Indoor unit A
Indoor unit B
Branch pipe
b
H
L
Outdoor unit
CAUTION
When planning a layout for Units A and B, comply with the following:
1. The lengths after branching (a and b) should be equal if feasible. Install Units A and B so that the
difference of the branching lengths becomes less than 10m if the lengths cannot be equal due to the
branch pipe position.
2. Install Units A and B on the same level. If Units A and B cannot be installed on the same level, the
difference in level should be limited to 0.5m or less.
3. Be certain to install Units A and B in the same room.
Units A and B cannot be operated independently each other.
21
6-7. Additional Refrigerant Amount

<Formula for Calculating Additional Refrigerant Amount>
Do not remove the refrigerant even if the additional refrigerant amount becomes minus result as a result of
calculations by the following formula and operate the air conditioner as it is.
Additional refrigerant amount (kg) = Main piping additional refrigerant amount (kg)
+ Branch piping additional refrigerant amount (kg)
= A (L 18) + B (a + b 4)
A
B
L
a, b
: Additional refrigerant amount per meter of actual main piping length (kg)
: Additional refrigerant amount per meter of actual branch piping length (kg)
: Actual length of main piping (m)
: Actual length of branch piping (m)
Outdoor model
Standard piping length
Additional refrigerant amount per Meter (kg/m)
RAV-SM or RAV-SP
Main piping
Branch piping
1102AT-E
18 m
2m
0.040
0.020
Indoor unit A
Indoor unit B
Branch piping
Branch pipe
b
a
Branch piping
H
L
Main piping
Outdoor unit
CAUTION
1. Be certain to wire the additional refrigerant amount, pipe length (actual length), head and other
specification on the nameplate put on the outdoor unit for recording.
2. Seal the correct amount of additional refrigerant in the system.
22
6-8. Piping Materials and Sizes

Use copper tube of Copper and copper alloy seamless pipes and tubes, with 40mg/10m or less in the amount of
oil stuck on inner walls of pipe and 0.8mm in pipe wall thickness for diameters for diameters 6.4, 9.5 and
12.7mm and 1.0mm, for diameter 15.9mm.
Never use pipes of thin wall thickness such as 0.7mm.
In parentheres ( ) are wall thickness
1102AT-E
Model (RAV-SM or RAV-SP)

Main piping
15.9 (1.0)
Branch piping
12.7 (0.8)
Main piping
9.5 (0.8)
Branch piping
6.4 (0.8)
Gas side
Pipe side
Liquid side
6-9. Branch Pipe

Now the refrigerant pipe is installed using branch pipes supplied as accessories.
Bend and adjust the refrigerant piping so that the branch pipes and pipe after branching become horizontal.
Fix the branch pipes onto a wall in a ceiling or onto a column.
Provide a straight pipe longer than 500mm in length as the main piping of the branches.
OK
OK
500mm or
more
Horizontal
Horizontal
NO GOOG
Inclination
NO GOOG
Inclination
23
7. CONTROL BLOCK DIAGRAM

7-1. Indoor Control Circuit
Main (Sub) master remote controller
*1 Connection Interface is attached to
master unit.
(In case of group control operation)
Display
LCD
Weekly timer
LCD
driver
Function setup
CPU
*2 Weekly timer is not connectable to

the sub remote controller.
Function setup
CPU
Display
LED
Display
LCD
Key switch
Key switch
CN2
CN1
DC5V
DC5V
Remote controller
communication
circuit
Central control remote controller
(Option)
Power
circuit
*2
Option
Indoor
unit
#1
Secondary
battery
Power
circuit
Option
#2
Connection Interfase
(Option)
#3
Indoor control P.C. board

(MCC-1402)
P.C. board
(MCC-1440)
U3
U4
TCC-LINK
communication
circuit
Duct type nothing
DC20V
Remote controller
communication
circuit
EEPROM
DC5V
TA sensor
DC12V
TC sensor
CPU
Louver
motor
TCJ sensor
Driver
Same as
the left
*1
Same as
the left
*1
1 2 3
1 2 3
Float input
Drain
pump
Separately sold parts

for Ceiling type
Outside output
Run
Warning Ready
Thermo. ON
Cool/Heat Fan
CPU
Fan motor
control
circuit
Indoor
fan
motor
DC280V
AC
synchronous
signal input circuit
Serial
send/receive
circuit
Power circuit
Outdoor
unit
1 2 3
Wireless remote controller kit
1 2 3
Receiver P.C. board

Remote controller
communication circuit
Outdoor unit
Temporary
operation SW
Power
circuit
DC5V
CPU
Function
setup SW
Buzzer
Receive circuit
24
Display LED
Outdoor
unit
7-2. Control Specifications

No.
1
Item
When power
supply is reset
Operation mode
selection
Outline of specifications
1) Distinction of outdoor units
When the power supply is reset, the outdoors are
distinguished, and control is exchanged according to
the distinguished result.
2) Setting of speed of the indoor fan/setting whether to
adjust air direction or not.
Based on EEPROM data, speed of the indoor fan or
setting whether to adjust air direction or not is selected.
Remarks
Air speed/
Air direction adjustment
1) Based on the operation mode selecting command

from the remote controller, the operation mode is
selected.
Remote controller
command
STOP
FAN
COOL
Outline of control
Air conditioner stops.
Fan operation
Cooling operation
DRY
Dry operation
HEAT
Heating operation
AUTO
COOL/HEAT operation mode

is automatically selected by Ta
and Ts for operation.
Ta
(C)
COOL
+1.5
(COOL ON)
Tsc
or Tsh
(COOL OFF)
-1.5
HEAT
1) Judge the selection of COOL/HEAT mode as shown

in the figure above.
When 10 minutes passed after thermostat had
been turned off, the heating operation (Thermo
OFF) is exchanged to cooling operation if Tsh
exceeds +1.5 or more.
(COOL OFF) and (COOL ON) in the figure indicate
an example.
When 10 minutes passed after thermostat had
been turned off, the cooling operation (Thermo
OFF) is exchanged to heating operation if Tsc
exceeds 1.5 or less.
2) For the automatic capacity control after judgment of
COOL/HEAT, refer to item 4.
3) For the temperature correction of room temperature
control in automatic heating operation, refer to item 3.
25
Ta : Room temperature
Ts : Setup temperature
Tsc : Setup temperature in
cooling operation
Tsh : Setup temperature
+ Room temperature
control temperature
compensation
No.
3
Item
Room
temperature
control
Remarks
1) Adjustment range Remote controller setup temperature (C)

COOL/
DRY
Heating
operation
Auto
operation
Wired type
18 to 29
18 to 29
18 to 29
Wireless type
18 to 30
16 to 30
17 to 27
2) Using the item code 06, the setup temperature in

heating operation can be compensated.
Setup data
Setup temp.
compensation
+0C
+2C
+4C
+6C
Shift of suction temperature in heating operation
Setting at shipment
Setup data
Automatic
capacity control
(GA control)
1) Based on the difference between Ta and Ts, the

operation frequency is instructed to the outdoor unit.
Air speed
selection
1) Operation with (HH), (H), (L), or [AUTO] mode is

HH > H > L > LL
performed by the command from the remote controller.
2) When the air speed mode [AUTO] is selected, the air
speed varies by the difference between Ta and Ts.
<COOL>
Ta (C)
+3.0
+2.5
+2.0
+1.5
+1.0
+0.5
Tsc
-0.5
A
B
C
D
HH
(HH)
H (HH)
H (HH)
L(H)
L(H)
L(H)
L(L)
F
G
Controlling operation in case when thermo of remote

controller works is same as a case when thermo of
the body works.
If the air speed has been changed once, it is not
changed for 3 minutes. However when the air volume
is exchanged, the air speed changes.
When cooling operation has started, the air speed
selects a downward slope, that is, the high position.
If the temperature is just on the difference boundary,
the air speed does not change.
Mode in the parentheses indicates one in automatic
cooling operation.
26
No.
Item
Air speed
selection
(Continued)
Remarks
<HEAT>
Ta (C)
L(L)
L(H)
H(H)
(-0.5) 1.0
(0)
Tsh
(+0.5) +1.0
(+1.0) +2.0
(+1.5) +3.0
H
(HH)
HH
(HH)
C
B
(+2.0) +4.0
Value in the parentheses indicates one when thermostat of

the remote controller works.
Value without parentheses indicates one when thermostat of
the body works.
If the air speed has been changed once, it is not changed
for 1 minute. However when the air speed is exchanged, the
air speed changes.
When heating operation has started, the air speed selects a
upward slope, that is, the high position.
If the temperature is just on the difference boundary, the air
speed does not change.
Mode in the parentheses indicates one in automatic heating
operation.
In Tc 60C, the air speed increases by 1 step.
<Operation of duct only>

Standard
COOL
UL
L
L+
HEAT
UL
High ceiling
COOL
HEAT
L
L+
M
M+
H
M
M+
Tap
UL
L
L+
UL
L
L+
M+,M
M+,M
FD
FD
FB
FA
F9
F8
F7
F6
F5
F4
F3
F2
F1
SM562
Revolutions per
minute (rpm)
320
320
330
350
360
370
400
410
420
440
480
530
580
Tc: Indoor heat exchanger sensor temperature

3) In heating operation, the mode changes to [UL] if thermostat is turned off.
4) If Ta 25C when heating operation has started and when
defrost operation has been cleared, it operates with HIGH
(H) mode or (HH) for 1 minute from when Tc has entered
in E zone of cool air discharge preventive control (Item 6).
5) In automatic cooling/heating operation, the revolution
frequency of [HH] is set larger than that in the standard
cooling/heating operation. However the revolution frequency is restricted in the automatic heating operation as
shown in the following figure.
27
[PRE-HEAT] display
Tc
(C)
47
F5
42
F5
F4
No.
6
Item
Cool air
discharge
preventive
control
Remarks
1) In heating operation, the indoor fan is controlled based

on the detected temperature of Tc sensor or Tcj sensor.
As shown below, the
Tc (C)
Tcj
upper limit of the
HH
32
revolution frequency
H
30 L
is determined.
E zone
In D or E zone, the priority

is given to setup of air
volume exchange.
In A and B zones,
[PRE-HEAT] is displayed.
28
UL
D zone
26
20
16
OFF
C zone
B zone
A zone
Freeze preven- 1) The cooling operation (including Dry operation) is

Tcj : Indoor heat extive control
performed as follows based on the detected temperachanger sensor
(Low temperature of Tc sensor or Tcj sensor.
temperature
ture release)
When [J] zone is detected for 6 minutes (Following
figure), the commanded frequency is decreased from
the real operation frequency. After then the commanded
frequency changes every 30 seconds while operation is
performed in [J] zone.
In [K] zone, time counting is interrupted and the operation is held.
When [I] zone is detected, the timer is cleared and the
operation returns to the normal operation.
If the commanded frequency becomes S0 because the
operation continues in [J] zone, the return temperature
A is raised from 5C to 12C until [I] zone is detected
and the indoor fan
(C)
operates with [M] mode.
5
K
2
J
In heating operation, the freeze-preventive control

works if 4-way valve is not exchanged and the condition
is satisfied. (However the temperature for J zone
dashing control is changed from 2C to 5C.)
8
High-temp
release control
1) The heating operation is performed as follows based on

the detected temperature of Tc sensor or Tcj sensor.
When [M] zone is detected, the commanded frequency is decreased from the real operation frequency. After then the commanded frequency
changes every 30 seconds while operation is performed in [M] zone.
In [N] zone, the commanded frequency is held.
When [L] zone is detected, the commanded frequency is returned to the original value by approx.
6Hz every 60 seconds.
Setup at
shipment
Control temp (C)

A
56 (54)
52 (52)
Tc (C)
Tcj A
M
N
B
L
NOTE :
When the operation has started or when Tc or Tcj became
lower than 30C after start of the operation, temperature is
controlled between values in parentheses of A and B.
28
Same when thermostat is

turned off.
No.
Item
Drain pump control
1) In cooling operation (including Dry operation), the

drain pump is usually operated.
2) If the float switch operates while drain pump
operates, the compressor stops, the drain pump
continues the operation, and a check code is
output.
3) If the float switch operates while drain pump stops,
the compressor stops and the drain pump operates. If the float switch keeps operating for approx.
4 minutes, a check code is output.
10 After-heat elimination
When heating operation stops, the indoor fan operates

with LOW mode for approx. 30 seconds.
11
1) Flap position setup

When the flap position is changed, the position
moves necessarily to downward discharge
position once to return to the set position.
The flap position can be set up in the following
operation range.
Flap control
In cooling/dry operation
Remarks
Check code [P10]
In heating/fan operation
In group twin/triple operation, the flap positions

can be set up collectively or individually.
2) Swing setup
The swinging position can be moved in the
following operation range.
All modes
In group twin/triple operation, the swinging

positions can be set up collectively or individually.
3) When the unit stops or when a warning is output,
the flap automatically moves downward.
4) While the heating operation is ready, the flap
automatically moves upward.
29
Warning :
A check code is displayed
on the remote controller,
and the indoor unit stops.
(Excluding [F08] and
[L31])
No.
12
Item
Frequency fixed
operation
(Test run)
Remarks
<In case of wired remote controller>

1. When pushing [CHECK] button for 4 seconds or more,
[TEST] is displayed on the display screen and the
mode enters in Test run mode.
2. Push [ON/OFF] button.
3. Using [MODE] button, change the mode from [COOL]
to [HEAT].
Do not use other mode than [COOL]/[HEAT] mode.
During test run operation, the temperature cannot be
adjusted.
An error is detected as usual.
A frequency fixed operation is performed.
4. After the test run, push [ON/OFF] button to stop the
operation. (Display in the display part is same as the
procedure in item 1).)
5. Push [CHECK] button to clear the test run mode.
([TEST] display in the display part disappears and the
status returns to the normal stop status.)
<In case of wireless remote controller>
1. Turn off the power of the set.
Remove the adjuster with sensors from the ceiling
panel.
2. Turn Bit [1: TEST] of sensor P.C. board switch [S003]
from OFF to ON.
Attach the sensor P.C. board cover and mount the
adjuster with sensors to the ceiling panel.
Turn on the power of the set.
3. Push [ON/OFF] button of the wireless remote controller
and set the operation mode to [COOL] or [HEAT] using
[MODE] button.
(During test run operation, all the display lamps of
wireless remote controller sensors flash.)
Do not use other mode than [COOL]/[HEAT] mode.
An error is detected as usual.
A frequency fixed operation is performed.
4. After the test run, push [ON/OFF] button to stop the
operation.
5. Turn off the power of the set.
Turn Bit [1: TEST] of sensor P.C. board switch [S003]
from ON to OFF.
Mount the adjuster with sensors to the ceiling panel.
13
Filter sign display

(Except wireless
type)
1) The operation time of the indoor fan is calculated, the

filter reset signal is sent to the remote controller when
the specified time (2500H) has passed, and it is
displayed on LCD.
2) When the filter reset signal has been received from the
remote controller, time of the calculation timer is
cleared. In this case, the measurement time is reset if
the specified time has passed, and display on LCD
disappears.
30
[FILTER] goes on.
No.
14
Item
Central control
mode selection
Remarks
1) Setting at the central controller side enables to select

the contents which can be operated on the remote
controller at indoor unit side.
2) RBC-AMT31E
[Last push priority] :
The operation contents can be selected from both
remote controller and central controller of the indoor
unit side, and the operation is performed with the
contents selected at the last.
[Center] :
Start/Stop operation only can be handled on the
remote controller at indoor unit side.
[Operation Prohibited] :
It cannot be operated on the remote controller at
indoor unit side. (Stop status is held.)
(No display)
] goes on.
] goes on.
In a case of wireless type, the

display lamp does not change.
However, contents which can be
operated are same.
The status set in [
]/
[Operation Prohibited] mode is
notified with the receiving sound
Pi, Pi, Pi, Pi, Pi (5 times).
15
Energy-save
control
(By connected
outdoor unit)
1) Selecting [AUTO] mode enables an energy-saving to

be operated.
2) The setup temperature is shifted (corrected) in the
range not to lose the comfort ability according to input
values of various sensors.
3) Data (Input value room temp. Ta, Outside temp. To, Air
volume, Indoor heat exchanger sensor temp. Tc) for
20 minutes are taken the average to calculate
correction value of the setup temperature.
4) The setup temperature is shifted every 20 minutes,
and the shifted range is as follows.
In cooling time : +1.5 to 1.0K
In heating time : 1.5 to +1.0K
16
Max. frequency
cut control
1) This control is operated by selecting [AUTO] operation mode.

Ta(C)
2) COOL operation mode: the frequency
Normal control
is controlled according to the following
+4
figure if To < 28C.
Max. frequency is restricted
+3
to approximately the rated

cooling frequency
Tsc
3) HEAT operation mode: the frequency
is controlled according to the right
figure if To > 15C.
Ta(C)
Tsh
3
4
17
DC motor
Max. frequency is restricted

to approximately the rated
heating frequency
Normal control
1) When the fan operation has started, positioning of the

stator and the rotor are performed.
(Moves slightly with tap sound)
2) The motor operates according to the command from
the indoor controller.
NOTES :
When the fan rotates while the air conditioner stops
due to entering of outside air, etc, the air conditioner
may operated while the fan motor stops.
When a fan locking is found, the air conditioner stops,
and an error is displayed.
Check code [P12]
31
Connection interface
DC fan output
Indoor/Outdoor
inter-unit cable
Optional
power supply
32
Remote controller
power supply LED
DC fan return
*1
Drain pump output
Float SW
Fan output
HA (T10)
TA sensor
Optional output
Louver
(Used only for 4-way Air Discharge Cassette Type, Under Ceiling type)
TCJ sensor
EXCT
DISP Used for
CHK servicing
Remote controller inter-unit cable

TC sensor
7-3. Indoor Print Circuit Board
EEPROM
Filter/Option error input
<MCC-1402>
Microcomputer operation LED
8. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS

8-1. Indoor Control Circuit
8-1-1. Outline of Main Controls
1. Pulse Motor Valve (P.M.V.) control
1) PMV is controlled with 50 to 500 pulses during operation, respectively.
2) In cooling operation, PMV is controlled with the temperature difference between TS sensor and TC
sensor.
3) In heating operation, PMV is controlled with the temperature difference between TS sensor and TE
sensor.
4) For the temperature difference in items 2) and 3), 1 to 5K is aimed as the target in both cooling and
heating operations.
5) When the cycle excessively rose in both cooling and heating operations, PMV is controlled by TD sensor.
The aimed value is usually 105C for SM562 in both cooling and heating operations.
CAUTION
A sensor trouble may cause a liquid back-flow or abnormal overheat resulting in excessive shortening of the
compressor life. In a case of trouble on the compressor, be sure to check there is no error in the resistance
value an the refrigerating cycle of each sensor after repair and then start the operation.
2. Discharge temperature release control

1) This function controls the operation frequency,
that is, lowers the operation frequency when
the discharge temperature has not lower or
the discharge temperature has rapidly risen
during P.M.V. control.
It subdivides the frequency control up to a unit
of 0.6Hz to stabilize the cycle.
2) When the discharge temperature is detected
in an abnormal stop zone, the unit stops the
compressor and restarts after 2 minutes 30
seconds.
The error counter is cleared when it has
continued the operation for 10 minutes.
If the abnormal stop zone has been detected
by 4 times without clearing of counter, an
error P03 is displayed.
* The cause is considered as excessively little
amount of refrigerant, defective PMV, or
clogging of cycle.
[C]
SM562
117
112
108
105
98
TD [C]
Error stop ("P03" display with 4 times of error counts)
a
Frequency down
b
c
Frequency holding
d
Frequency slow-up
(Up to command)
e
As command is
[A]
Frequency down
I1
10.5
Hold
Hold
Normal operation
3. Current release control

The output frequency and the output voltage are controlled by AC current value detected by T02 on the
outdoor P.C. board so that input current of the inverter does not exceed the specified value.
SM562
Objective
model
COOL
HEAT
I1 value [A]
9.22
11.93
* For the cooling only models, only COOL is objective.
33
8-1-2. Indoor P.C. Board Optional Connector Specifications

Function
Option output
Outside error
input
Filter option
error
Connector
No.
CN60
CN80
CN70
CHK
Operation check
CN71
DISP display
mode
CN72
EXCT demand
CN73
Pin
No.
Specifications
Remarks
DC12V (COM)
Defrost output
ON during defrost operation of outdoor unit
Thermo. ON output
ON during Real thermo-ON (Comp ON)
Cooling output
ON when operation mode is in cooling system

(COOL, DRY, COOL in AUTO cooling/heating)
Heating output
ON when operation mode is in heating system

(HEAT, HEAT in AUTO cooling/heating)
Fan output
ON during indoor fan ON

(Air purifier is used/Interlock cable)
DC12V (COM)
DC12V (COM)
(When continued for 1 minute)

Check code L30 is output and forced operation stops.
Outside error input
Filter/Option/Humidifier
setup input
Option error input is controlled. (Protective operation

for device attached to outside is displayed.)
0V
* Setting of option error input is performed from

remote controller. (DN=2A)
Check mode input
0V
Display mode input
Used for operation check of indoor unit.

(Communication with outdoor unit or remote controller
is not performed, but the specified operation such as
indoor fan H or drain pump ON is output.)
0V
Demand input
0V
Display mode enables indoor unit and remote controller to communicate. (When power is turned on)
Forced thermo-OFF operation in indoor unit
34
9. TROUBLESHOOTING
9-1. Summary of Troubleshooting
<Wired remote controller type>
1. Before troubleshooting
1) Required tools/instruments
+ and screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch
Tester, thermometer, pressure gauge, etc.
2) Confirmation points before check
a) The following operations are normal.
1. Compressor does not operate.
Is not 3-minutes delay (3 minutes after compressor OFF)?
Does not thermostat turn off?
Does not timer operate during fan operation?
Is not outside high-temperature operation controlled in heating operation?
2. Indoor fan does not rotate.
Does not cool air discharge preventive control work in heating operation?
3.Outdoor fan does not rotate or air volume changes.
Does not high-temperature release operation control work in heating operation?
Does not outside low-temperature operation control work in cooling operation?
Is not defrost operation performed?
4. ON/OFF operation cannot be performed from remote controller.
Is not the control operation performed from outside/remote side?
Is not automatic address being set up?
(When the power is turned on at the first time or when indoor unit address setting is changed, the
operation cannot be performed for maximum approx. 5 minutes after power-ON.)
b) Did you return the cabling to the initial positions?
c) Are connecting cables of indoor unit and remote controller correct?
2. Troubleshooting procedure
When a trouble occurred, check the parts along with the following procedure.
Trouble
Confirmation of check code display
Check defective position and parts.
NOTE :
For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer
noise is considered except the items to be checked. If there is any noise source, change the cables of the
remote controller to shield cables.
35
<Wireless remote controller type>

1. Before troubleshooting
1) Required tools/instruments
+ and screwdrivers, spanners, radio cutting pliers, nippers, etc.
Tester, thermometer, pressure gauge, etc.
2) Confirmation points before check
a) The following operations are normal.
1. Compressor does not operate.
Is not 3-minutes delay (3 minutes after compressor OFF)?
Does not thermostat turn off?
Does not timer operate during fan operation?
Is not outside high-temperature operation controlled in heating operation?
2. Indoor fan does not rotate.
Does not cool air discharge preventive control work in heating operation?
3) Outdoor fan does not rotate or air volume changes.
Does not high-temperature release operation control work in heating operation?
Does not outside low-temperature operation control work in cooling operation?
Is not defrost operation performed?
4) ON/OFF operation cannot be performed from remote controller.
Is not forced operation performed?
Is not the control operation performed from outside/remote side?
Is not automatic address being set up?
a) Did you return the cabling to the initial positions?
b) Are connecting cables between indoor unit and receiving unit correct?
2. Troubleshooting procedure
(When the power is turned on at the first time or when indoor unit address setting is changed, the operation
cannot be performed for maximum approx. 5 minutes after power-ON.)
When a trouble occurred, check the parts along with the following procedure.
Trouble
Confirmation of lamp display

(When 4-way air discharge cassette type
wireless remote controller is connected)
Check defective
position and parts.
1) Outline of judgment
The primary judgment to check where a trouble occurred in indoor unit or outdoor unit is performed with
the following method.
Method to judge the erroneous position by flashing indication on the display part of indoor unit
(sensors of the receiving unit)
The indoor unit monitors operating status of the air conditioner, and the blocked contents of self-diagnosis
are displayed restricted to the following cases if a protective circuit works.
36
9-2. Check Code List

Error mode detected by indoor and outdoor units
Wireless sensor
lamp display
Diagnostic function
Wired remote
controller
Operation
Timer
Ready
Check code
E03
: Flash, : Go on, l: Go off
Cause of operation
No communication from remote controller (including wireless)
and communication adapters
The serial signal is not output from outdoor unit to indoor unit.
Miscabling of inter-unit cables
Defective serial sensing circuit on outdoor P.C. board
Defective serial receiving circuit on indoor P.C. board
Status of air
conditioner
Judgment and measures
Condition
Stop
Displayed when
(Automatic reset) error is detected
1. Check cables of remote controller and communication adapters.

Handy remote controller LCD display OFF (Disconnection)
Central remote controller [97] check code
37
1. Outdoor unit does not completely operate.

Inter-unit cable check, correction of miscabling, case thermo operation
Outdoor P.C. board check, P.C. board cables check
2. In normal operation
P.C. board (Indoor receiving/Outdoor sending) check
1. Check whether there is modification of remote controller connection (Group/Individual) or not
after power has been turned on (finish of group configuration/address check).
* If group configuration and address are not normal when the power has been turned on, the
mode automatically shifts to address setup mode. (Resetting of address)
1. Check cables of remote controller.
2. Check power cables of indoor unit.
3. Check indoor P.C. board.
1. Check cables of remote controller.
2. Check indoor power cable.
1. Check indoor heat exchanger temperature sensor (TCJ).
E04
E08
E10
Communication error between indoor MCU

Communication error between fan driving MCU and main MCU
E18
Regular communication error between master and sub indoor

units or between main and sub indoor units
F01
Coming-off, disconnection or short of indoor heat exchanger

sensor (TCJ)
Stop
Displayed when
l
l
F02

sensor (TC)
Stop
Displayed when 1. Check indoor heat exchanger temperature sensor (TC).
(Automatic reset) error is detected 2. Check indoor P.C. board.
F04
Coming-off, disconnection or short of outdoor temperature sensor

(TD)
Stop
F06

(TE/TS)
Stop
F08

(TO)
Operation
continues.
F10

sensor (TA)
Stop
Displayed when 1. Check indoor heat exchanger temperature sensor (TA).
l
l
F29
Indoor EEPROM error

EEPROM access error
Stop
Displayed when 1. Check indoor EEPROM. (including socket insertion)
H01
H02
Compressor does not rotate.

Over-current protective circuit operates after specified time
passed when compressor had been activated.
Stop
H03
Current detection circuit error

Current value at AC side is high even during compressor-OFF.
Phase of power supply is missed.
Stop
l
l
l
L03
L07
L08
S top
Displayed when
Duplicated indoor unit addresses

Stop
Breakdown of compressor
Displayed when error is detected
Duplicated indoor master units

There is group line in individual indoor units.
Unsetting of indoor group address
Displayed when
error is detected
Stop
Displayed when
Stop
Displayed when
Stop
Stop
Stop
Stop
Displayed when 1. Check outdoor temperature sensor (TD).

error is detected 2. Check outdoor CDB P.C. board.
Displayed when 1. Check outdoor temperature sensor (TE/TS).
Displayed when 1. Check outdoor temperature sensor (TO).
1. Check power voltage. AC200V 20V

Displayed when
error is detected 2. Overload operation of refrigerating cycle
3. Check current detection circuit at AC side.
1.
Displayed when
error is detected 2.
3.
1.
Displayed when
error is detected 2.
Trouble of compressor (Compressor lock, etc.) : Replace compressor.

Defective cabling of compressor (Phase missing)
Phase-missing operation of power supply (3-phase model)
Compressor immediately stops even if restarted. : Check IPDU.
Phase-missing operation of power supply
Check 3-phase power voltage and cables.
Displayed when 1. Check whether there is modification of remote controller connection (Group/Individual) or not
after power has been turned on (finish of group configuration/address check).
error is detected
* If group configuration and address are not normal when the power has been turned on, the
Displayed when
mode automatically shifts to address setup mode. (Resetting of address)
error is detected
Displayed when
error is detected

Wireless sensor
lamp display
Diagnostic function
Wired remote
controller
Operation
Timer
Ready
Check code
L09
L29
L30
L31
Cause of operation
Unset indoor capacity
Outdoor unit and other errors
Communication error between CDB and IPDU
(Coming-off of connector)
Heat sink temperature error
(Detection of temperature over specified value)
Abnormal outside interlock input
Phase detection protective circuit operates. (Normal models)
Fan motor thermal protection
No check code is displayed.
Status of air
conditioner
Condition
Stop
Displayed when 1. Set the indoor capacity. (DN=I1)

error is detected
Stop
Displayed when
error is detected
Stop
Displayed when 1. Check outside devices.

error is detected 2. Check indoor P.C. board.
1. Check cables of CDB and IPDU.

2. Abnormal overload operation of refrigerating cycle
Operation continues. Displayed when 1. Check power phase order (Reversed phase)/phase missing.
(Compressor stops.) error is detected 2. Check outdoor P.C. board.
Stop
Displayed when 1. Check thermal relay of fan motor.

38
P03
Discharge temperature error

Discharge temperature over specified value was detected.
Stop
1. Check refrigerating cycle. (Gas leak)

Displayed when
2. Trouble of PMV
error is detected
3. Check Td sensor.
P04
High-pressure protection error by TE sensor

(Temperature over specified value was detected.)
Stop
1. Overload operation of refrigerating cycle

Displayed when 2. Check outdoor temperature sensor (TE).
error is detected
3. Check outdoor CDB P.C. board.
P10
Stop
1. Defect of drain pump

Displayed when 2. Clogging of drain pump
error is detected 3. Check float switch.
P12
Stop
1. Defective detection of position

Displayed when 2. Over-current protective circuit of indoor fan driving unit operates.
error is detected 3. Lock of indoor fan
P19
P22
l
l
l
P26
P29
P31
Float switch operation

Disconnection, coming-off, defective float switch contactor of float circuit
Indoor DC fan error
Error in 4-way valve system

Indoor heat exchanger temperature lowered after start of heating operation.
Stop
(Automatic reset)
Outdoor DC fan error
Stop
Inverter over-current protective circuit operates. (For a short time)

Short voltage of main circuit operates.
IPDU position detection circuit error
Own unit stops while warning is output to other indoor units.
Stop
Stop
Stop (Sub unit)
(Automatic reset)
1. Check 4-way valve.

Displayed when 2. Check indoor heat exchanger (TC/TCJ) sensor.
error is detected
1. Defective detection of position
Displayed when 2. Over-current protective circuit of outdoor fan driving unit operates.
error is detected 3. Lock of outdoor fan
4. Check outdoor CDB P.C. board.
Displayed when 1. Inverter immediately stops even if restarted. : Compressor motor rare short
error is detected 2. Check IPDU. : Cabling error
Displayed when 1. Position detection circuit operates even if operating compressor by removing
3P connector. : Replace IPDU.
error is detected
Displayed when 1. Judge sub unit while master unit is in [E03], [L03], [L07], [L08].
For an error mode detected in outdoor unit, the fan operates because sub unit of a group operation does not communicate with the outdoor unit.
Error mode detected by remote controller

Wireless sensor
lamp display
Diagnostic function
Wired remote
controller

Cause of operation
Operation
Timer
Ready
Status of air conditioner
Condition
Check code
No communication with master indoor unit
Remote controller cable is not correctly connected.
No check code is Power of indoor unit is not turned on.
displayed.
(Remote controller Automatic address cannot be completed.
does not operate.)
Stop
Remote controller power error, Defective indoor EEPROM

1. Check remote controller inter-unit cables.
2. Check remote controller.
3. Check indoor power cables.
5. Check indoor EEPROM. (including socket insertion)
: Phenomenon of automatic address repetition occurred.
No communication with indoor master unit

Disconnection of inter-unit cable between remote
controller and master indoor unit
(Detected at remote controller side)
Signal receiving of remote controller is defective.

1. Check remote controller inter-unit cables.
Stop
Displayed when
(Automatic restart)
2. Check remote controller.
error is detected
* When there is center, operation continues.
3. Check indoor power cables.
Signal sending of remote controller is defective.
Stop
Displayed when
(Automatic restart)
error is detected 1. Check sending circuit inside of remote controller.
: Replace remote controller.
* When there is center, operation continues.
39
E01
E02
Signal sending error to indoor unit

E09
Multiple master remote controllers are recognized.

L20
Duplicated indoor central addresses on

communication of central control system
(Detected by central controller side)
Stop
(Sub unit continues operation.)
Displayed when
error is detected
Stop
(Automatic restart)
Displayed when
error is detected
1. Check there are multiple master units for 2 remote controllers

(including wireless).
: Master unit is one and others are sub units.
1. Check address setup of central control system network. (DN = 03)
Error mode detected by central remote controller

Wireless sensor
lamp display
Diagnostic function
Wired remote
controller

Cause of operation
Operation
Timer
Ready
Check code
C05
C06
P30
Sending error central remote controller
Status of air conditioner

Operation continues
Receiving error in central remote controller

Operation continues
Differs according to error contents of unit with
occurrence of alarm.
Continuation/Stop
(Based on a case)
Condition
Displayed when 1. Check communication line/miscabling/ Check power of indoor unit.
error is detected 2. Check communication. (U3, U4 terminals)
3. Check network adapter P.C. board.
Displayed when 4. Check central controller (such as central control remote controller, etc.).
error is detected
5. Terminal resistance check (connection interface SW01)
Displayed when Check the check code of corresponding unit by remote controller
error is detected
9-3. Error Mode Detected by LED on Outdoor P.C. Board

RAV-SM562AT-E / RAV-SP562AT-E
<SW801: LED display in bit 1, bit 2 OFF>
When multiple errors are detected, the latest error is displayed.
When LED display is (Go on), there is the main cause of trouble on the objective part of control at CDB
side and the unit stops.
When LED display is (Flash), there is the main cause of trouble on the objective part of control at IPDU
side and the unit stops.
When case thermostat operates, the communication is interrupted on the serial circuit.
If continuing the case thermostat operation, a serial communication error occurs because serial sending to
the indoor unit is interrupted.
No.
Item
Check
code
Type A
CDB side
IPDU side
LED display
D800
(Red)
D801
(Yellow)
D802
(Yellow)
D803
(Yellow)
l
l
l
l
l
l
l
l
TE sensor error
F06
TD sensor error
F04
TS sensor error
F06
TO sensor error
F08
Discharge temp. error
P03
DC outdoor fan error
P22
Communication error between IPDU

(Abnormal stop)
L29
High-pressure release operation
P04
EEPROM error
10
Communication error between IPDU

(No abnormal stop)
11
IGBT short-circuit protection
P26
12
Detection circuit error
P29
13
Current sensor error
H03
14
Comp. lock error
H02
15
Comp. breakdown
H01
: Go on l : Go off
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
: Flash (5Hz)
<<Check code>>
The check codes are classified into Type A and Type B according to the used remote controller.
Be sure to check the remote controller which you use.
Type A :
Neutral 2-cores type wired remote controller such as RBC-AMT31E, RBC-AS21E, and wireless
remote controller kit such as TCB-AX21U (W)-E2
40
9-4. Troubleshooting Procedure for Each Check Code

9-4-1. Check Code
[E01 error]
NO
Correct inter-unit cable of remote controller.
Is inter-unit cable of A and B normal?

YES
Is there no disconnection
or contact error of connector on harness
from terminal block of indoor unit?
YES
Correct connection of connector.

Check circuit cables.
NO
NO
Is group control operation?
YES
NO
Check power connection of indoor unit.

(Turn on power again.)
NO
Check indoor P.C. board (MCC-1402).

Defect
Replace
YES
Correct as a master unit/a sub unit

(Remote controller address connector)
Is power of all indoor units turned on?

YES
Is power supplied to remote controller?

AB terminal: Approx. DC18V
YES
Are two remote controllers
set without master unit?
NO
Check remote controller P.C. board.

Defect
Replace
[E09 error]
Are two remote controllers

set without master unit?
YES
Correct as a master unit/a sub unit

(Remote controller address connector)
NO
Check remote controller P.C. board.

Defect
Replace
41
[E04 error]
NO
Does outdoor unit operate?
YES
NO
Is setup of group address correct?
Check item code [14].
YES
NO
Correct inter-unit cable.
Are 1, 2, 3 inter-unit cables normal?

YES
Are connections from connectors
of inter-terminal blocks (1, 2, 3)
of indoor/outdoor units normal?
NO
YES
Does voltage between
2 and 3 of inter-terminal blocks (1, 2, 3)
of indoor unit vary?*
YES
Check indoor P.C. board

(MCC-1402).
Defect
Replace
NO
* As shown in the following figure, perform measurement

within 20 seconds after power ON.
Black
S5277G
White
2
1
Inter-terminal block
YES
Does case thermo. operate?
NO

Defect
Replace
Check outdoor P.C. board

Defect
Replace
MCC-5009
RAV-SM562AT-E
MCC-1531 and MCC-1438
RAV-SP562AT-E
42
Check/Correct charged
refrigerant amount.
[E10 error]
Check indoor control P.C. board (MCC-1402).

Defect
Replace
[E18 error]
NO
Correct inter-unit cable of remote controller.
Is inter-unit cable of A and B normal?

YES
Is there no disconnection
or contact error of connector on harness
from terminal block of indoor unit?
YES

Check circuit cables.
NO
NO
YES
Is group control operation?
Is power of all indoor units turned on?
NO

Defect
Replace
Check power connection of indoor unit.

(Turn on power again.)
[E08, L03, L07, L08 error]

E08
L03
L07
L08
: Duplicated indoor unit numbers

: Two or more master units in a group control
: One or more group addresses of [Individual] in a group control
: Unset indoor group address (99)
If the above is detected when power has been turned on, the mode automatically enters in automatic address setup mode. (Check code is not displayed.)
However, if the above is detected during automatic address setup mode, the check code may be displayed.
[L09 error]
YES
Set capacity data of indoor unit.

(Setup item code (DN) = 11)
Is capacity of indoor unit unset?

NO

Defect
Replace
43
[L20 error]
NO
Correct cable connection
Are cable connections to communication line U3, U4 normal?

YES
YES
Are not multiple same central

control network addresses connected?
Correct central control network address.
NO
Check central controller (including connection interface) indoor P.C. board.

Defect
Replace.
[L30 error]
NO

Defect
Replace
Are outside devices of connector CN80 connected?

YES
NO
Check outside devices.

Defect
Replace
Do outside devices normally operate?

YES
Check operation cause.
[P10 error]
Is connection of float switch connector
(Indoor control P.C. board CN34) normal?
NO
YES
NO
Does float switch

operate?
Is circuit
cabling normal?
NO
Check and correct cabling/wiring.
YES
YES

Defect
Replace
NO
Does drain pump

operate?
Is power of drain
pump turned on?
NO

Defect
Replace
YES
YES
Replace drain pump.

Check cabling.
Check drain pipe, etc.
[F10 error]
NO
Is connection of TA sensor connector

(indoor P.C. board CN104) normal?
YES
NO
Are characteristics of TA sensor resistance value normal?
YES
Replace TA sensor.
* Refer to Characteristics-1.

Defect
Replace
44
[P12 error]
<Only for 4-way air discharge cassette type models>
Turn off the power.
Are not there connections errors or

disconnection on connectors CN333 and CN334
of indoor unit P.C. board (MCC-1402)?
YES
NO
Remove connectors CN333 and
CN334 of indoor unit P.C. board
(MCC-1402).
Does the fan rotate without trouble

when handling the fan with hands?
NO
Replace indoor fan motor.
YES
Are resistance values between phases
at fan motor connector CN333 motor side of
indoor P.C. board (MCC-1402) correct? *1
YES
NO
*1
Are not coil windings between 1 (Red lead) and 3 (White lead),
between 3 (White lead) and 5 (Black lead), between
5 (Black lead) and 1 (Red lead) opened or shorted?
For resistance, see the following values.
RAV-SM562, SM802, SM1102, SP562, SP802, SP1102
Approx. 70 to 100W
RAV-SM1402, SP1402 Approx. 35 to 50W
Is not earthed between cabinet and 1, 3, 5 10MW or more
Is resistance value of fan motor connector

CN333 at motor side of indoor P.C. board
(MCC-1402) correct? *2
YES
NO
*2
Check resistance of fan motor position detection circuit.

Is not coil winding between 1 (Yellow lead) and 4 (Pink lead)
opened or shorted? Resistance: Approx. 5 to 20kW
Is signal output of indoor fan motor
position detection correct? *3
YES
NO
*3
Check fan motor position detection signal.

Using a tester, measure the voltage between CN334 1 and 5 of
indoor P.C. board (MCC-1402) under condition that CN333 and
CN334 are mounted and the power is turned on.
Rotate the fan slowly with hands,
and check the pin voltage
swings between 0 to 5V voltage.
Between 4 and 5 : 5V
CN333
(MCC-1402).
Defect Replace
CN334
45
[P22 error]
Are connections of CN301 and

CN300 of P.C. board correct?
YES
Does the fan rotate without trouble
when handling the fan with hands under condition
of removing CN301 and CN300 from P.C. board?
CN301, * CN303
NO
YES
The status that the resistance values
between leads below are 50 to 80W
for 40W motor (ICF-140-40) and 25 to 55W
for 60W motor (ICF-140-60-1) is normal.
Between 1 (Red lead) and 2 (White lead)
Between 2 (White lead) and 3 (Black lead)
Between 3 (Black lead) and 1 (Red lead)
of motor winding of connector (CN301)
NO
CN300
YES
The status that there is
5k to 20kW resistance values between
1 (Yellow lead) and 4 (Pink lead)
of motor position detection of
connector (CN300) is normal.
CN300 : Motor coil winding

CN301 : Motor position detection
NO
* CN301, CN303 : Motor coil winding
CN300, CN302 : Motor position detection

SP562AT-E
YES
Normal fan motor

(Control or CDB P.C. board)
Defective fan motor
(Control P.C. board or CDB P.C. board)

NOTE :
However, GND circuit error inside of the motor is rarely detected even if the above check is carried out.
When the circuit does not become normal even if P.C. board has been replaced, replace outdoor fan motor.
Single phase
RAV-SM562AT-E
RAV-SP562AT-E
Control P.C. board
CDB P.C. board
Fan motor winding
CN300
CN301
Motor position detection
CN301
CN300
Objective P.C. board
46
[P19 error]
Is operation of
4-way valve normal?
NO
Is voltage applied
to 4-way valve coil terminal
in heating operation?
YES
NO
NO
YES
Is flow of refrigerant
by electron expansion
valve normal?
Check 4-way valve

Defect
Replace
YES
Check and replace

electron expansion
valve.
NO
Is circuit cable normal?
YES
NO
Check and correct circuit.
Are characteristics
of TC sensor resistance
value normal?
* Refer to Characteristics-2. YES

NO
Check CDB P.C. board.
Replace TC sensor.
YES
Check CDB P.C. board.

Defect
Replace
Check indoor P.C. board.

Defect
Replace
* For RAV-SM562AT-E, check control P.C. board.
In cooling operation, if high pressure is abnormally raised, [P19 error]/[08 error] may be displayed. In this
case, remove cause of pressure up and then check again referring to the item [P04 error]/[21 error].
[F02 error]
Is connection of TC sensor connector

(Indoor P.C. board CN101) normal?
NO
YES
Are characteristics of
TC sensor resistance value normal?
YES
NO
Replace TC sensor.

(MCC-1402).
Defect
Replace
47
[F01 error]
Is connection of TCJ sensor connector

(Indoor P.C. board CN102) normal?
NO
YES
TCJ sensor resistance value normal?
YES
NO
Replace TCJ sensor.

(MCC-1402).
Defect
Replace
[P26 error]
NO
Improve the power supply line.
Is power voltage normal?

YES
Are connections of
cabling/connector normal?
Check and correct circuit cables.

Check and correct reactor connection.
NO
YES
* For RAV-SM562AT-E,
check RY01 on the control P.C. board.
Does RY01 relay of
IPDU operate?
YES
Are not P26 and 14 errors output

when an operation is performed by
removing 3P connector of compressor?
NO
NO
YES
* Single-phase type is not
provided to RAV-SM562AT-E.
Replace IPDU.
YES
Is not AC fuse fused?
* Replace control P.C. board

of RAV-SM562AT-E.
NO
Replace IPDU.
NO
Is compressor normal?
* Replace control P.C. board

of RAV-SM562AT-E.
YES
Check IPDU.
Defect
Replace
Check rare short of compressor trouble.

Defect
Replace
48
[P29 error]
NO
Are connections of
cable/connector normal?
Check and correct circuit cabling

such as cabling to compressor.
YES
NO
YES
YES
Compressor error Replace
Is not earthed?
NO
Is not winding shorted?
(Is resistance between windings 0.6 to 1.2W?)
YES
NO
YES
Is not winding opened?
NO
Check IPDU P.C. board.

Defect Replace
* For RAV-SM562AT-E, replace control P.C. board.
[H03 error]
Are cablings of power and

current sensor normal?
NO
YES
Check IPDU.
Defect Replace
49
[F06 error]
Are connections of
TE/TS sensor connectors of
CDB CN604/CN605 normal?
YES
Are characteristics of TE/TS sensor
resistance values normal?
NO
* (For RAV-SM562AT-E, CN600 TE sensor and CN603 TS sensor)

NO
Replace TE and TS sensors.
YES
Check CDB.
Defect
Replace
[F04 error]
Is connection of TD sensor connector

of CDB CN600 normal?
YES
Are characteristics of TD sensor
resistance value normal?
NO
* (For RAV-SM562AT-E, CN601 TD sensor)

NO
Replace TD sensor.
YES
Check control P.C. board.

Defect
Replace
[F08 error]
Is connection of TO sensor connector

of CDB CN601 normal?
YES
Are characteristics of TO sensor
resistance value normal?
NO
* (For RAV-SM562AT-E, CN602 TO sensor)

NO
Replace TO sensor.
YES
Check CDB.
Defect
Replace
50
[L29 error]
In the case of SUPER DIGITAL INVERTER
Are connections of
CDB CN800 and CDB IPDU CN06
connectors normal?
NO
YES
Was the error just after
power ON determined?
YES
NO
Are cabling/connector normal?
Check cabling between IPDU

and CDB and connector.
YES
NO
IPDU P.C. board error

Defect
Replace
YES
Improve and eliminate the cause.
Is there no abnormal overload?

NO
Is IPDU P.C. board come to
closely contact with heat sink?
NO
Correct mounting.
YES
YES

Defect
Replace

NO
Improve power line.

And power on once again.
In the case of DIGITAL INVERTER

NO
Improve power line.

And power on once again.

YES
Fault of compressor.
Check rare short
Defect
Replace
NO
YES

Defect
Replace
[H02 error]
NO
Improve power line.
YES
Are connections of
Check and correct circuit cabling such

as cabling to compressor
(phase missing) and connector.
NO
YES
NO
Is there no
slackened refrigerant?
YES
NO
Compressor lock
Replace
YES
Does electron expansion
valve normally operate?
NO
Check TE and TS sensors. Replace

Check electron expansion valve. Replace
YES
Check IPDU and CDB.

Defect
Replace
51
[P03 error]
Is protective control such as

discharge temprelease control normal?
NO
Are connections of
YES
NO
Correct the cabling and

connection of connector.
YES
Check parts. Defect
NO
Replace
Check and correct the charged

refrigerant amount.
Is charged refrigerant amount normal?

YES
YES
Improve and delete the cause
Is not abnormal overload?

NO
TD sensor resistance value normal?
YES
NO
Replace TD sensor.
Check CDB.
Defect
Replace
[H01 error]
NO
Improve power line.
YES
YES
Improve and delete the cause.
Is not abnormal overload?

NO
Is the circuit detected by
current sensor normal?
NO
YES
Check IPDU.
Defect
Replace
52
[P04 error]
Is high-voltage
protective operation by
TE sensor normal?
NO
YES
NO
Is connection of cabling
connector normal?
Correct connection of
cabling connector.
YES
Check TE sensor.
Defect
Replace
NO
Does cooling outdoor fan

normally operate?
YES
NO
Is connection of
connector normal?
Correct connection of
connector.
YES
NO
Is fan motor normal?
Replace fan motor.
YES
NO
Does PMV normally operate?
YES
Do not TD and TO sensors
come off the detection part?
Correct coming-off.
YES
Check TE, TC, TS sensors.

Replace electron expansion valve.
TD, TO, TC sensor resistance
values normal?
YES
Check charged refrigerant amount.
Check liquid/gas valves.
Check abnormal overload.
NO
NO
Replace TD, TO,

and TC sensors.
* Refer to Characteristics-3 and 4.
Check CDB.
Defect
Replace
53
[C06 error] (Central controller)

NO
Is U3, U4 communication line normal?
Correct communication line.
YES
Are connections between connectors
CN51 of connection interface P.C. board
and connectors CN51 of indoor P.C. board
normal?
NO
YES
NO
Is A, B communication line normal?
Check connections of A, B terminal blocks.

Correct communication line of remote controller.
YES
YES
Is there no connection error of power line?
Correct power cable.
NO
YES
Is not power of source power supply turned on?
Turn on the source power supply.
NO
YES
Did a power failure occur?
Clear the check code.
NO
YES
Is there no noise source, etc.?
Eliminate noise, etc.
NO
Can central remote controller
control normally other indoor units?
Is handling of central remote controller reflected
on the operation status of indoor unit?
NO
(Same as others)
Check central controller.

Defect
Replace
YES
Can handy remote controller control
normally other indoor units?
NO
YES
Check connection interface P.C. board.

Defect
Replace
54

Defect
Replace
[E03 error] (Master indoor unit)

[E03 error] is detected when the indoor unit cannot receive a signal sent from the main remote controller (and
central controller).
In this case, check the communication cables of the remote controllers A and B, the central control system X
and Y. As communication is disabled, [E03] is not displayed on the main remote controller and the central
controller. [E01] is displayed on the main remote controller and [97 error] on the central controller, respectively.
If [E03] occurs during an operation, the air conditioner stops.
[F29 error] / [12 error]
[F29 error] or [12 error] indicates detection of trouble which occurred on IC10 non-volatile memory (EEPROM)
on the indoor unit P.C. board during operation of the air conditioner. Replace the service P.C. board.
* If EEPROM has not been inserted when the power was turned on or if EEPROM data never be read/written,
the automatic address mode is repeated. In this time, the central controller displays [97 error].
(Power ON)
(Approx. 3 minutes)
[SET] is displayed on
main remote controller.
(Approx. 1 minute)
[SET] goes off.
(Repetition)
LED (D02) on
indoor unit P.C. board flashes
with 1Hz for approx. 10 seconds.
Reboot
(Reset)
[P31 error] (Sub indoor unit)

When the master unit of a group operation has detected [E03], [L03], [L07], or [L08] error, the sub unit of the
group operation detects [P31 error] and then it stops. There is no display of the check code or alarm history of
the main remote controller.
(In this model, the mode enters in automatic address set mode when the master unit has detected [E03], [L03],
[L07], or [L08] error.)
55
9-4-2. Relational Graph of Temperature Sensor Resistance Value and Temperature
20
40
TA sensor
TC, TCJ sensor

30
Caracteristics-2
Caracteristics-1
Resistance
(kW)
Resistance
(kW)
10
20
10
10
20
30
40
0
10
50
10
Temperature [C]
20
30
40
50
60
70
Temperature [C]
20
200
TE, TO, TS sensor
Caracteristics-3
Resistance
(kW)
(10C or higher)
Resistance
(kW)
(10C or lower)
10
100
0
-10
10
20
30
40
50
60
70
Temperature [C]
TD sensor
200
20
Caracteristics-4
Resistance
(kW)
(50C or higher)
Resistance
(kW)
(50C or lower)
10
100
0
50
100
Temperature [C]
56
10. REPLACEMENT OF SERVICE INDOOR P.C. BOARD

[Requirement when replacing the service indoor P.C. board assembly]
In the non-volatile memory (Hereinafter said EEPROM, IC10) installed on the indoor P.C. board before replacement, the type and capacity code exclusive to the corresponding model have been stored at shipment from the
factory and the important setup data such as system/indoor/group address set in (AUTO/MANUAL) mode or
setting of high ceiling selection have been stored at installation time. Replace the service indoor P.C. board
assembly according to the following procedure.
After replacement, check the indoor unit address and also the cycle by a test run.
<REPLACEMENT PROCEDURE>
CASE 1
Before replacement, power of the indoor unit can be turned on and the setup data can be readout
from the wired remote controller.
Read EEPROM data *1
Replace service P.C. board & power ON *2
Write the read data to EEPROM *3
Power reset (All indoor units in the group when group operation)
CASE 2
Before replacement the setup data can not be readout from the wired remote controller.
Replace service P.C. board & power ON *2
Write the data such as high ceiling setup to EEPROM (According to the customers information) *3
Power reset (All indoor units in the group when group operation)
57
r1 Readout of the setup data from EEPROM

(Data in EEPROM contents, which have been changed at the local site, are read out together with data in EEPROM
set at shipment from the factory.)
TEST
CL
SET
buttons of the remote controller at the same time for 4 seconds or more. 1
1. Push , , and
(Corresponded with No. in Remote controller)
When group operation, the master indoor unit address is displayed at the first time. In this time, the item code
(DN) 10 is displayed. The fan of the selected indoor unit operates and the louver starts swinging if any.
UNIT
2. Every pushing
button, the indoor unit address in the group are displayed successively. 2
Specify the indoor unit No. to be replaced.
/
buttons, the item code (DN) can be moved up and down one by one. 3
3. Using the set temperature
4. First change the item code (DN) from 10 to 01.
(Setting of filter sign lighting time) Make a note of the set data displayed in this time.
5. Next change the item code (DN) using the set temperature
/
buttons. Also make a note of the set data.
6. Repeat item 5. and make a note of the important set data as shown in the later table (Ex.).
01 to FF are provided in the item code (DN). On the way of operation, DN No. may come out.
TEST
button to return the status to usual stop status. 6
7. After finishing making a note, push
(Approx. 1 minute is required to start handling of the remote controller.)
Minimum requirements for item code
10
Type
11
Indoor unit capacity
12
Line address
13
Indoor address
14
Group address
1) Type and capacity of the indoor unit is necessary to set the revolutions
frequency of the fan.
2) If Line/Indoor/Group addresses differ from those before replacement, the
mode enters in automatic address setup mode and a manual resetting
may be required.
Notes)
MCC-1402-07
When
replacement
CN34
Set Short-circuit-plug on the same

position as the P. C. board to replace.
CN112
CN111
CN110
Contents
DN
If short-circuit-plug is inserted in
CN34 of the P. C. board to replace,
re-use it in service P. C. board.
r2 Replacement of service P.C. board

1. Replace the P.C. board with a service P.C. board.
In this time, setting of jumper line (cut) or setting of (short-circuit) connecting connectors on the former P.C. board
should be reflected on the service P.C. board. (See Appendix 1, page 4)
2. According to the system configuration, turn on power of the indoor unit with any method in the following items.
a) In case of single (individual) operation
Turn on the power supply.
1) Wait for completion of automatic address setup mode (Required time: Approx. 5 minutes) and then
proceed to r3.
(Line address = 1, Indoor address = 1, Group address = 0 (Individual) are automatically set.)
TEST
CL
SET
buttons of the remote controller at the same time for 4 seconds or more
2) Push , , and
(1 operation), interrupt the automatic address setup mode, and then proceed to r3.
(Unit No. ALL is displayed.)
b) In case of group operation
Turn on power of the indoor unit of which P.C. board has been replaced with the service P.C. board with any
method in the following items.
1) Turn on power of the replaced indoor unit only.
(However, the remote controller is also connected.
Otherwise r3 operation cannot be performed.)
Same as 1) and 2) in item a).
2) Turn on power of the multiple indoor units including replaced indoor unit.
Only 1 system for twin, triple, double twin
For all units in the group
Wait for completion of automatic address setup mode (Required time: Approx. 5 minutes) and then proceed to
r3.
* The master unit of a group may change by setup of automatic address. The line address/indoor address of the
replaced indoor unit are automatically set to the vacant addresses except addresses belonging to other indoor
units which have not been replaced. It is recommended to make a note that the refrigerant line which includes the
corresponding indoor unit and that the corresponding indoor unit is master or sub in the group control.
58
r3 Writing of the setup contents to EEPROM

(The contents of EEPROM installed on the service P.C. board have been set up at shipment from the factory.)
TEST
CL
SET
1. Push , , and
buttons of the remote controller at the same time for 4 seconds or more. 1
(Corresponded with No. in Remote controller )
In group operation control, the master indoor unit No. is displayed at the first time. (If the automatic address
setup mode is interrupted in item 2. - a) - 2) in the previous page, the unit No. ALL is displayed.) In this time,
the item code (DN) 10 is displayed. The fan of the selected indoor unit operates and the louver starts
swinging if any.
UNIT
2. Every pushing
button, the indoor unit numbers in the group control are displayed successively. 2
Specify the indoor unit No. of which P.C. board has been replaced with a service P.C. board.
(When the unit No. ALL is displayed, this operation cannot be performed.)
/
buttons, the item code (DN) can be moved up and down one by one. 3
4. First set a type and capacity of the indoor unit.
(Setting the type and capacity writes the data at shipment from the factory in EEPROM.)
1) Set the item code (DN) to 10. (As it is)
2) Using the timer time
/
buttons, set up a type. 4
(For example, 4-way air discharge cassette type is 0001) Refer to the attached table.
SET
button. (OK when the display goes on.) 5
3) Push
4) Using the set temperature
/
buttons, set 11 to the item code (DN).
/
buttons, set the capacity.
5) Using the timer time
(For example, 0012 for class 80) Refer to the attached table.
SET
6) Push
button. (OK when the display goes on.)
TEST
7) Push
button to return the status to usual stop status. 6
(Approx. 1 minute is required to start handling of the remote controller.)
5. Next write the contents which have been set up at the local site such as the address setup in EEPROM.
Repeat the above procedure 1. and 2.
/
buttons, set 01 to the item code (DN).
(Setup of lighting time of filter sign)
7. The contents of the displayed setup data in this time should be agreed with the contents in the previous
memorandum in r1.
1) If data disagree, change the displayed setup data to that in the previous memorandum by the timer time
SET
/
buttons, and then push
button. (OK when the display goes on.)
2) There is nothing to do when data agrees.
/
buttons, change the item code (DN).
As same as the above, check the contents of the setup data and then change them to data contents in the
previous memorandum.
9. Then repeat the procedure 7. and 8.
TEST
10. After completion of setup, push
button to return
the status to the usual stop status. 6
<Remote controller>
(Approx. 1 minute is required to start handling of
the remote controller.)
* 01 to 9F are provided in the item code (DN).
On the way of operation, DN No. may come out.
When data has been changed by mistake and
SET
, button has been pushed, the data can be
TEMP.
ON / OFF
returned to the data before change by pushing
CL
button if the item code (DN) was not yet
TIMER SET
FAN
MODE
changed.
SET DATA
UNIT No.
R.C.
3
4
6
1
59
TIME
FILTER
RESET TEST
SET
CL
No.
SWING/FIX
UNIT
VENT
5
2
Memorandum for setup contents (Item code table (Example))

DN
Item
Memo
01
Filter sign lighting time
According to type
02
Dirty state of filter
0000: Standard
03
Central control address
0099: Unfixed
06
Heating suction temp shift
0002: +2C (Floor type: 0)
0F
Cooling only
0000: Shared for cooling/heating
10
Type
According to model type
11
According to capacity type
12
Line address
0099: Unfixed
13
Indoor unit address
0099: Unfixed
14
Group address
0099: Unfixed
19
Flap type (Adjustment of air direction)
According to type
1E
Temp difference of automatic cooling/

heating selecting control points
0003: 3 deg (Ts 1.5)
28
Automatic reset of power failure
0000: None
2A
Option
0002:
At shipment
2b
Thermo output selection
0000: Thermo ON
2E
Option
0000:
32
Sensor selection
0000: Body sensor
5d
High ceiling selection
0000: Standard
60
Timer set (Wired remote controller)
0000: Available
8b
Correction of high heat feeling
0000: None
Type
Item code [10]
Setup data
0014
Type
Abbreviated name
Compact 4-way cassette
RAV-SM562MUT-E
* Initial setup value of EEPROM installed on the service P.C. board

Item code [11]
Setup data
Type
Abbreviated name
0009
Compact 4-way cassette
RAV-SM562MUT-E
* Initial setup value of EEPROM installed on the service P.C. board
60
11. SETUP AT LOCAL SITE AND OTHERS

11-1. Indoor Unit
11-1-1. Test Run Setup on Remote Controller
RAV-SM562MUT-E
<Wired remote controller>
TEST
1. When pushing button on the remote controller for 4 seconds or more, TEST is displayed on LC display.
ON / OFF
button.
Then push
TEST is displayed on LC display during operation of Test Run.
During Test Run, temperature cannot be adjusted but air volume can be selected.
In heating and cooling operation, a command to fix the Test Run frequency is output.
Detection of error is performed as usual. However, do not use this function except case of Test Run because it applies load on the unit.
2. Use either heating or cooling operation mode for [TEST].
NOTE : The outdoor unit does not operate after power has been turned on or for approx. 3 minutes after
operation has stopped.
TEST
3. After a Test Run has finished, push
button again and check that [TEST] on LC display has gone off.
(To prevent a continuous test run operation, 60-minutes timer release function is provided to this remote
controller.)
<Wireless remote controller>

1. Remove a screw which fixes the serial olate of the receiver part on the wireless remote controller.
Remove the nameplate of the reciver section by inserting a minus screwdriver, etc. into the notch at the
bottom of the plate, and set the Dip switch to [TEST RUN ON].
2. Execute a test operation with
button on the wireless remote controller.
,
and
LED flash during test operation.
Under status of [TEST RUN ON], the temperature adjustment from the wireless remote controller is invalid.
Do not use this method in the operation other than test operation because the equipment is damaged.
3. Use either [COOL] or [HEAT] operation mode for test operation.
The outdoor unit does not operate approx. 3 minutes after power-ON and operation stop.
4. After the test operation finished, stop the air conditioner from the wireless remote controller, and return Dip
switch of the sensor section as before. (A 60 minutes timer clearing function is attached to the sensor
section in order to prevent a continuous test operation.)
Receiver unit
Spacer
M4 25 screw
(2 pieces)
Notch
Nameplate
Small screw
61
<In case of wireless remote controller>

Procedure
Description
Turn on power of the air conditioner.
The operation is not accepted for 5 minutes when power has been turned on at first time after installation,
and 1 minute when power has been turned on at the next time and after. After the specified time has
passed, perform a test operation.
Push [Start/Stop] button and change the operation mode to [COOL] or [HEAT] with [Mode] button.
Then change the fan speed to [High] using [Fan] button.
Test cooling operation
Test heating operation
Set temperature to [18C] using [Temperature set]

button.
Set temperature to [30C] using [Temperature set]

button.
After checking the receiving sound Pi, immediately

push [Temperature set] button to set to [19C]

push [Temperature set] button to set to [29C].


Then repeat the procedure
4545.
After approx. 10 seconds, all the display lamps on the sensor part of wireless remote controller,
[Operation] (Green), [Timer] (Green), and [Ready] (Yellow) flash and the air conditioner starts operation.
If the lamps do not flash, repeat the procedure
2 and after.
After the test operation, push [Start/Stop] button to stop the operation.
<Outline of test operation from the wireless remote controller>

Test cooling operation:
Start 18C 19C 18C 19C 18C 19C 18C (Test operation) Stop
Test heating operation:
Start 30C 29C 30C 29C 30C 29C 30C (Test operation) Stop
Be sure to set the

air speed to [High]
3, 4, 5, 6
2, 7
62
Item No. (DN) table (Selection of function)

DN
Description
Item
At shipment
01
Filter sign lighting time
0000 : None
0002 : 2500H (4-Way/Duct/Ceiling Type)
0002 for D.I. and S.D.I.

models
02
Dirty state of filter
0000 : Standard
0001 : High degree of dirt (Half of standard time)
0000 : Standard
03
Central control address
0001 : No.1 unit

0099 : Unfixed
06
Heating suction temp shift
0000 : No shift
0002 : +2C
to
0064 : No.64 unit
0099 : Unfixed
to
0001 : +1C
0010 : -10C
(Up to recommendation + 6)
0002 : +2C
(Floor type 0000: 0C)
0F
Cooling only
0000 : Heat pump

0001 : Cooling only (No display of [AUTO] [HEAT])
0000 : Shared for

cooling/heating
10
Type
0014 : SM562MUT-E
According to model type
11
0000 : Unfixed
0012 : 802 type
0017 : 1402 type
12
Line address
0001 : No.1 unit
13
Indoor unit address
0001 : No.1 unit
14
Group address
0000 : Individual
0002 : Sub of group
1E
Temp difference of
automatic cooling/heating
mode selection COOL
HEAT, HEAT COOL
0000 : 0 deg
to
0010 : 10 deg
(For setup temperature, reversal of
COOL/HEAT by (Data value)/2)
0003 : 3 deg
(Ts1.5)
28
Automatic restart of power

failure
0000 : None
0000 : None
2A
Option
2b
Thermo output selection

(T10 )
2E
Option
0000 : Default
30
Option
0000 : Default
31
Option
0000 : Default
32
Sensor selection
0000 : Body TA sensor
0001 : Remote controller sensor
0000 : Body sensor
33
Temperature indication
0000 : C (celsius)
0001 : F (Fahrenheit)
0000 : C
40
Option
5d
High ceiling selection (Air

volume selection)
0000 : Standard (Below 3.2m)

0000 : Standard
60
Timer set
(Wired remote controller)
0000 : Available (Operable)

0001 : Unavailable (Operation prohibited)
0000 : Available
8b
Correction of high heat

feeling
0000 : None
0000 : None
0009 : 562 type

0015 : 1102 type
According to capacity type
to
0030 : No.30 unit
0099 : Unfixed
to
0064 : No.64 unit
0099 : Unfixed
0001 : Master of group
0099 : Unfixed
19
0001 : Restart
0002 : Default
0000 : Indoor thermo ON
0001 : Output of outdoor comp-ON receiving
0000: Thermo. ON
0003 : Default
0001 : Correction
63
11-1-2. Cabling and Setting of Remote Controller Control

2-remote controller control
(Controlled by two remote controllers)
One or multiple indoor units are controlled by two
remote controllers.
(Max. 2 remote controllers are connectable.)
1 indoor unit is controlled by 2
remote controllers
<Wired remote controller>

How to set wired remote controller
as sub remote controller
Change DIP switch inside of the rear side of the
remote controller switch from remote controller
master to sub. (In case of RBC-AMT31E)
Remote controller (Inside of the rear side)
Remote controller Remote controller

switch (Master)
switch (Sub)
1 2
Sold separately
Sold separately
A B
A B
Sub remote
controller
Master remote
controller
1 2
DIP switch
Remote controller
cables (Procured locally)
Terminal block for
remote controller cables
1 2
A B
Indoor unit
1 2 3
1 2 3
Outdoor unit
(Setup method)
One or multiple indoor units are controlled by two
remote controllers.
(Max. 2 remote controllers are connectable.)
64
11-1-3. Monitor Function of Remote Controller Switch

n Call of sensor temperature display
<Contents>
Each sensor temperature of the remote controller, indoor unit, and outdoor unit can become known by calling
the service monitor mode from the remote controller.
<Procedure>
1
2
CL
TEST
Push +
buttons simultaneously for 4 seconds or more to call the service monitor mode.
The service monitor goes on, the master indoor unit No. is displayed, and then temperature of the item
code 00 is displayed.
Push the temperature setup
/
buttons to select the sensor No. (Item code) of the sensor to be monitored.
The sensor numbers are described below:
SET DATA
UNIT No.
R.C.
No.
TEMP.
2
4
FILTER
RESET TEST
ON / OFF
TIMER SET
FAN
MODE
TIME
SWING/FIX
VENT
SET
CL
UNIT
1
<Operation procedure>
Returned to usual display
Item code
Indoor
unit data
Data name
Item code
00
Room temp. (control temp.) *1
01
Room temp. (remote controller)

Outdoor
unit data
02
Room temp. (TA)
03
Heat exchanger temp. (TCJ)
04
Heat exchanger temp. (TC)
Data name
60
Heat exchanger temp. TE
61
Outside temp. TO
62
Discharge temp. TD
63
Suction temp. TS
64
65
Heat sink temp. THS
*1 Only master unit in group control
3
4
The temperature of indoor units and outdoor unit in a group control can be monitored by
UNIT
button to select the indoor unit to be monitored.
pushing
Pushing
TEST
button returns the display to usual display.
65
n Calling of error history

<Contents>
The error contents in the past can be called.
<Procedure>
SET DATA
UNIT No.
CL
TEST
R.C.
Push +
buttons simultaneously for 4
seconds or more to call the service check
mode.
Service Check goes on, the item code 01 is
displayed, and then the content of the latest alarm is
displayed. The number and error contents of the
indoor unit in which an error occurred are displayed.
TEMP.
2
3
In order to monitor another error history, push

/
buttons to
the set temperature
change the error history No. (Item code).
Item code 01 (Latest) Item code 04 (Old)
NOTE : Four error histories are stored in memory.
Pushing
display.
TEST
No.
ON / OFF
TIMER SET
FAN
MODE
TIME
SWING/FIX
VENT
FILTER
RESET TEST
SET
CL
UNIT
1
button returns the display to usual

Returned to usual display
<Requirement>
CL
Do not push
button, otherwise all the error histories of
the indoor unit are deleted.
(Group control operation)

In a group control, operation of maximum 8 indoor units can be controlled by a remote controller.
The indoor unit connected with outdoor unit (Individual/Master of twin) controls room temperature according to
setting on the remote controller.
<System example>
OUT
IN
OUT
1-1
IN
OUT
Master
2-1
IN
OUT
3-1
IN
OUT
4-1
IN
7-1
Max. 8 units
Remote controller
1. Display range on remote controller

The setup range (Operation mode/Air volume select/Setup temp) of the indoor unit which was set to the
master unit is reflected on the remote controller.
2. Address setup
Turn on power of the indoor unit to be controlled in a group within 3 minutes after setting of automatic
address.
If power of the indoor unit is not turned on within 3 minutes (completion of automatic address setting), the
system is rebooted and the automatic address setting will be judged again.
1) Connect 3 In/Out cables surely.
2) Check line address/indoor address/group address of the unit one by one.
3) The unit No. (line/indoor gout address) which have been set once keep the present status as a rule if the
unit No. is not duplicated with one of another unit.
66
11-2. Setup at Local Site / Others

Model name: TCB-PCNT30TLE2 and TCB-PX30MUE
11-2-1. TCC-LINK Adapter (For TCC-LINK Central Control)

1. Function
This model is an optional P.C. board to connect the indoor unit to TCC-LINK (Central controller).
2. Microprocessor Block Diagram
Indoor unit
TCC-LINK adapter P.C. board
CN050
Indoor control
P.C. board
CN041
CN51
TCC-LINK
communication circuit
Central
controller
CN40
Terminal
resistance
SW01
MCC-1440
Terminal block
(A, B)
TCC-LINK
Communication units:
Total 64 units
Communication distance:
2km
Remote controller
3. Installation Procedure
1) Cut off the slit of bell mouth on the Air Conditioner unit (RAV-SMMUT-E) with nipper or a cutter for
attaching the Connection Interface Kit.
Cutting off portion

(Shaded area)
After cutting off the slit of bell mouth on the unit,

clear up the surface of the slit that there is no burr
on the cutting edge.
2) Attach the Connection Interface Kit (TCB-PX30MUE) on the

Air Conditioner unit (RAV-SMMUT-E).
After insert the hook of the unit to the Connection Interface Kit
hole, and then tighten a Cross slot screw (4 14).
Connection Interface Kit

Cross slot screw
67
3) Install the spacers and P.C. board that are attached to TCB-PCNT30TLE2, on the Connection Interface
Kit.
Spacers
(Attached to the TCB-PCNT30TLE2)
P.C. board
(Attached to the TCB-PCNT30TLE2)
4) Remove the 2P terminal block for the communication cable of the electric parts box on the unit, and then
replace with the attached 4P terminal block for the communication wires.
a) Disconnect the lead wires on the 2P terminal block of the electric parts box from the Faston connector
on the unit.
b) Replace the 2P connector with 4P connector on the terminal block.
c) Connect the lead wires that are disconnected as shown above steps a), to the 4P terminal block.
(A), (B) terminals
(Connecting for the Remote Controller)
CN41
(BLUE)
CN41
(BLUE)
5) Connect the connection cables attached to the electric parts block.

Terminal
(U3), (U4) terminals

(For central control)
A B U3 U4
1
1
3
CN41
3
Main P.C. B
MCC-1402
1 2 3 4 5 CN50
1 2 3 4 5 (WHITE)
CN50
(WHITE)
CN51
1 2 3 4 5
CN51
1 2 3 4 5
Sub P.C. B
MCC-1440
CN41
(BLUE)
CN40
Connecting cable B
Connecting cable A
68
Wiring diagram
6) Setting for Central Control

For Central Control setting, refer to the Installation Manual of the TCB-PCNT30TLE2.
7) After the installation work has been completed, install the Connection Interface Kit cover to the Connection Interface Kit tightened with the two screws (4 10).
Screw (4 10)
Connection
Interface Kit cover
Hook of
Connection Interface Kit
Screw (4 10)
4. TCC-LINK Wiring Connection
CAUTION
1)
2)
3)
4)
When controlling customized setup collectively, TCC-LINK adapter (This option) is required.
In case of group operation or twin/triple operation, the adapter is necessary to be connected to the main unit.
Connect the central control devices to the central control system wiring.
When controlling collectively customized setup only, turn on only Bit 1 of SW01 of the least line of the system
address No. (OFF when shipped from the factory)
In case of customized setup, the address is necessary to be set up again from the wired remote
controller after automatic addressing.
Central control device
U1 U2
U3 U4
U1 U2
U3 U4
Refrigerant line 1
Central control devices: Max. 10 units
Refrigerant line 2
Refrigerant line 3
Refrigerant line 4
1 2 3
1 2 3
1 2 3
Outdoor unit
1 2 3
Indoor/outdoor inter-unit wire (AC230V serial)
Caution 3
Central control system wiring
* Wiring for No.1 and 2 only
Indoor unit
U3 U4
1 2 3
U3 U4
Maater
unit
1 2 3
A B
TCC-LINK adapter
This product
sold separately
Caution 1
Sub
unit
1 2 3
A B
A B
Sub unit
1 2 3
A B
U3 U4
Maater unit
1 2 3
A B
A B
Caution 2
Remote controller
wiring
Remote controller
Remote controller
Remote controller
Group operation (Max. 8 units)
Remote controller
Twin/Triple operation (Example of triple)
Indoor units in all refrigerant lines: Max. 64 units

[If mixed with multi model (Link wiring), multi indoor units are included.]
* However group sub units and twin/triple sub units of customized setup are not included in number of the units.
69
Sub unit
1 2 3
5. Wiring Specifications
Use 2-core with no polar wire.
Size
No. of wires
Match the length of wire to wire length of the central
Up to 1000m: twisted wire 1.25mm2
control system.
2
Up to 2000m: twisted wire 2.0mm2
If mixed in the system, the wire length is
lengthened with all indoor/outdoor inter-unit wire length at side.
To prevent noise trouble, use 2-core shield wire.
Connect the shield wire by closed-end connection and apply open process (insulating process) to the last terminal. Ground the earth wire to 1 point at indoor unit side. (In case of central controlling of digital inverter unit setup)
CAUTION
1) Closed-end connection of shield wire (Connect all the connecting parts of each indoor unit)
2) Apply open process to the last terminal (insulating process).
3) Ground earth wire to 1 point at indoor unit side.

U1 U2
Caution 2
Caution 1
Caution 3
Outdoor unit
Indoor unit
U3 U4
1 2 3
1 2 3
1 2 3
1 2 3
Master
unit
U3 U4 1 2 3
Sub unit
1 2 3
A B
A B
Remote controller
1 2 3
Sub unit
1 2 3
U3 U4
A B
Remote controller
: TCC-LINK adapter
(This option)
A B
Remote controller
Master unit
1 2 3
A B
A B
Earth terminal
Remote controller
(Group operation)
Sub unit
1 2 3
(Triple operation)
6. P.C. Board Switch (SW01) Setup

When performing collective control by customized setup only, the setup of terminator is necessary.
Using SW01, set up the terminator.
Set up the terminator to only the adapter connected to the indoor unit of least line address No.
U1 U2
U3 U4
U1 U2
U3 U4
Refrigerant line 1
Central control devices: Max. 10 units
Refrigerant line 2
Refrigerant line 3
Refrigerant line 4
1 2 3
1 2 3
1 2 3
Outdoor unit
1 2 3
Indoor/outdoor inter-unit wire (AC230V serial)

* Wiring for No.1 and 2 only
Indoor unit
U3 U4
1 2 3
U3 U4
A B
A B
TCC-LINK adapter
This product
sold separately
Sub
unit
1 2 3
Master
unit
1 2 3
Sub unit
1 2 3
A B
A B
Remote controller
Remote controller
Remote controller
Remote controller
Group operation (Max. 8 units)
1 2 3
A B
A B
1
ON
OFF
Turn SW01 Bit 1 to ON.
SW01
Bit 1
OFF
OFF
ON
ON
2
OF
OFF
As status shipped from factory
4
OF
(OFF at shipment from factory)
OFF
(OFF at shipment from factory)
As status shipped from factory
Terminator
None
100
75
43
Remote controller
Twin/Triple operation (Example of triple)
(Reference) Setup contents of switch

Bit 1
OFF
ON
OFF
ON
Sub unit
1 2 3
Remote controller wiring
Line address
SW01 Bit 1
SW01 Bit 2
Remarks
U3 U4
Master unit
Remarks
Mixed with multi (Link wiring) at shipment from factory
Central control by digital inverter only
Spare
Spare
70
7. External View of P.C. Board

Terminator (SW01)
52
85
8. Address Setup
In addition to set up the central control address, it is necessary to change the indoor unit number.
(Line/Indoor/Group address).
For details, refer to TCC-LINK Adapter Installation Manual.
11-3. How to Set up Central Control Address Number

When connecting the indoor unit to the central control remote controller using TCC-LINK adapter, it is necessary to set up the central control address number.
The central control address number is displayed as the line No. of the central control remote controller.
1. Setup from remote controller at indoor unit side

* If you use the network adapter P.C. board, it is effective only when No. 7 of setup switch SW01 on P.C.
board is turned off.
<Procedure> Perform setup while the unit stops.
TEST
VENT
Push +
buttons for 4 seconds or more.
When group control is executed, first the unit No. RLL is displayed and all the indoor units in the group
control are selected. In this time, fans of all the selected indoor units are turned on. (Fig. 1)
(Keep RLL displayed status without pushing
button.)
In case of individual remote controller which is not group-controlled, Line address and Indoor unit address
are displayed.
UNIT
2
3
4
Using temperature setup

Using timer time
table (Table 1).
Push
SET
TIME
TEMP.
buttons, specify item code
buttons, select the setup data. The setup data is shown in the right
button. (OK if display goes on.)
To change the item to be set up, return to Procedure
Push
TEST
03.
(Fig.1)
2.
button.
SET DATA
The status returns to usual stop status.
UNIT No.
R.C.
(Table 1)
No.
TEMP.
Setup data
Central control address No.
0001
0002
0003
:
0064
1
2
3
:
64
0099
Unset (Setup at shipment from factory)
2
1
5
71
FILTER
RESET TEST
ON / OFF
TIMER SET
FAN
MODE
TIME
SWING/FIX
VENT
SET
CL
UNIT
3
1
4
12. ADDRESS SETUP

12-1. Address Setup
<Address setup procedure>
When an outdoor unit and an indoor unit are connected, or when an outdoor unit is connected to each indoor
unit respectively in the group operation even if multiple refrigerant lines are provided, the automatic address
setup completes with power-ON of the outdoor unit. The operation of the remote controller is not accepted while
automatic address works. (Approx. 4 to 5 minutes)
Setup of line address of outdoor unit,
indoor unit address, and group address
Completion of cabling work
NO
Do you arbitrarily set the

indoor unit address?
YES
NO
(MANUAL)
Is refrigerant line 1 line?

YES
NO
Is group control performed?
YES
(To AUTO address mode)
Do you change setting after

automatic setting at the first time?
YES
Connect one remote controller with
one indoor unit (1 : 1) tentatively with
communication cable.
Turn on power of outdoor unit.
Set to all indoor units one by one.
After completion of address

setup, change is to arbitral
address/group manually.
) (
Setup of automatic
address finishes within
4 to 5 minutes.
END
When the following addresses are not stored in the neutral memory (IC10) on the indoor P.C. board, a test run
operation cannot be performed. (Unfixed data at shipment from factory)
Item code
Data at shipment
Setup data range
Line
address
12
0099
0001 (No. 1 unit) to 0030 (No. 30 unit)
Indoor unit
address
13
0099
0001 (No. 1 unit) to 0030 (No. 30 unit)

Max. value of indoor units in the identical refrigerant line (Double twin = 4)
Group
address
14
0099
0000 : Individual (Indoor units which are not controlled in a group)

0001 : Master unit (1 indoor unit in group control)
0002 : Sub unit (Indoor units other than master unit in group control)
72
12-2. Address Setup & Group Control

<Terminology>
Indoor unit No. : N - n = Outdoor unit line address N (Max. 30) - Indoor unit address n (Max. 64)
Group address : 0 = Individual (Not group control)
1 = Master unit in group control
2 = Sub unit in group control
Master unit (= 1) : The representative of multiple indoor units in group operation sends/receives signals to/from
the remote controllers and sub indoor units. (* It has no relation with an indoor unit which
communicates serially with the outdoor units.)
The operation mode and setup temperature range are displayed on the remote controller
LCD. (Except sir direction adjustment of flap)
Sub unit (= 2)
: Indoor units other than master unit in group operation
Basically, sub units do not send/receive signals to/from the remote controllers.
(Except errors and response to demand of service data)
12-2-1. System configuration

2. Single group operation
1. Single
Outdoor
Indoor
1-1
Individual (Master/Sub)
2-1
Sub
1-1
Sub
4-1
Master
3-1
Sub
8-1
Sub
Remote
controller
12-2-2. Automatic address example from unset address (No miscabling)

1. Standard (One outdoor unit)
1) Single
1-1
Individual (Master/Sub)
2) Gr operation
(Multiple outdoor units = Miltiple indoor units only with serial
communication)
2-1
Sub
1-1
Sub
4-1
Master
8-1
Sub
Max. 8 units
Only turning on source power supply (Automatic completion)
73
12-3. Address Setup

In case that addresses of the indoor units will be determined prior to piping work after cabling work
(Manual setting from remote controller)

<Address setup procedure>
Set an indoor unit per a remote controller.
Turn on power supply.
1
2
3
4
5
6
7
8
9
10
11
SET
CL
(Example of 2-lines cabling)

(Real line: Cabling, Broken line: Refrigerant pipe)
OUT
OUT
IN
IN
TEST
Push
+
+
buttons simultaneously
for 4 seconds or more.
(
Line address)
Using the temperature setup
set 12 to the item code.
Using timer time
Push
SET
buttons, set the line address.
button. (OK when display goes on.)
(
Indoor unit address)
Using timer time
Push
SET
buttons,
buttons,
Line address
Indoor unit address
Group address

/
For the above example, perform setting by connecting

singly the wired remote controller without remote
controller inter-unit cable.
buttons,
Using timer time

/
buttons, set 0000 to Individual,
0001 to Master unit, and 0002 to sub unit.
SET
2
1
2
buttons, set 1 to the line address.
(
Group address)
Push
1
1
1
Group address
Individual : 0000
Master unit : 0001
Sub unit
: 0002
In case of group control
TEST
Push
button.
Setup completes. (The status returns to the usual stop status.)
SET DATA
UNIT No.
R.C.
No.
TEMP.
2, 5, 8
END 11
FILTER
RESET TEST
ON / OFF
TIMER SET
FAN
MODE
TIME
SWING/FIX
VENT
SET
CL
3, 6, 9
4, 7, 10
UNIT
1
74
10
11
END
n Confirmation of indoor unit No. position

1. To know the indoor unit addresses though position of the indoor unit body is recognized
In case of individual operation (Wired remote controller : indoor unit = 1 : 1)
(Follow to the procedure during operation)
<Procedure>
1
2
ON / OFF
Push
button if the unit stops.

UNIT No.
UNIT
Push
button.
Unit No. 1-1 is displayed on LCD.
(It disappears after several seconds.)
The displayed unit No. indicate line address and
indoor unit address.
(When other indoor units are connected to the
identical remote controller (Group control unit), other
UNIT
unit numbers are also displayed every pushing
button.
TEMP.
FILTER
RESET TEST
ON / OFF
TIMER SET
FAN
MODE
TIME
SWING/FIX
VENT
SET
CL
1
Operation
UNIT
2
2 END
2. To know the position of indoor unit body by address

To confirm the unit No. in the group control
(Follow to the procedure during operation) (in this procedure, the indoor units in group control stop.)
<Procedure>
The indoor unit numbers in the group control are successively displayed, and fan, flap, and drain pump of the
corresponding indoor unit are turned on.
(Follow to the procedure during operation)
VENT
SET DATA
UNIT No.
R.C.
No.
TEST
Push
and
buttons simultaneously for
4 seconds or more.
Unit No. ALL is displayed.
Fans and flaps of all the indoor units in the group
control operate.
TEMP.
1
FILTER
RESET TEST
ON / OFF
TIMER SET
FAN
MODE
TIME
SWING/FIX
VENT
SET
CL
UNIT
UNIT
Every pushing
button, the unit numbers
in the group control are successively displayed.
The unit No. displayed at the first time indicates the
master unit address.
Fan and flap of the selected indoor unit only
operate.
TEST
Push
button to finish the procedure.
All the indoor units in the group control stop.
75
3
3 END
13. DETACHMENTS
13-1. Indoor Unit
Ceiling panel: RBC-UM11PG(W)E
Preparing work:
1. Before work, be sure to stop the power supply of the air conditioner and turn off switch of the power supply
breaker. (Otherwise an electric shock may be caused.)
2. Be sure to put on the gloves when working; otherwise an injury may be caused with parts sharp edges etc.
No.
Part name
Suction grille
Procedure
Remarks
1. Detachment
1) Slide hooks (2 positions) of the suction grille
to inner side, and then hang down the
suction grille.
2) Take off the strap that connects the panel
and the suction grille, and then lift up shaft of
the suction grille to remove the suction grille.
Suction grille
Ceiling panel
Hook of suction grille

Hook hole of ceiling panel
Hook of
fall-preventive strap
2. Attachment
1) Hook shaft of the suction grille to the panel.
2) Hook strap of the suction grille to the original position of the panel.
3) Close the suction grille and slide the hooks outward to fix it.
2
Electric parts
cover
1. Detachment
1) Perform work of procedure 1 -1.
2) Take off screws (4 10, 3 pcs.) fixing the
electric parts cover.
3) Remove the electric parts cover from the
temporary hanging hook of the electric parts
cover, and then open the cover.
Screws
Temporary hanging hook
2. Attachment
1) Close the electric parts cover and hook the
cover hole to the temporary hanging hook.
2) Tighten the fixing screws. (4 10, 3 pcs.)
Screw
Unnecessary to remove this hook.
76
No.
Part name
Adjust
corner cover
Procedure
Remarks
1. Detachment
1) Perform work of procedure of 1 -1.
2) Turn clockwise screws (4 positions) at the
suction port corner until adjust corner
cover rises up.
NOTE)
When you work, keep the torque at below 12Nm.

Do not use an electric screwdriver; otherwise the
mechanism of adjust corner cover may be
damaged and not be removed.
2
Torque~12Nm
3) Pull downward the risen-up part of adjust

corner cover and remove it.
4) Remove the strap of adjust corner cover.
2. Attachment
1) Attach the strap of adjust corner cover to
the panel, hook claws of adjust corner
cover to the panel corner, and then push
the opposite side into the panel.
2) Turn screws (4 positions) of the suction
port corner counterclockwise until bump
between adjust corner cover and panel
disappears.
NOTE)
When you work, keep the torque at below 12Nm.
Do not use an electric screwdriver;
otherwise the mechanism of adjust corner cover
may be damaged and not be removed.
4
Ceiling
panel
Torque~12Nm
1. Detachment
1) Perform works of procedure 1 -1-, 2 -1,
and 3 -1.
2) Remove the flap connector (CN33, White,
5P) connected to the control P.C. board
and then take off the lead wire from the
clamp.
Hanging
section of tentative
hook of ceiling panel
Temporary
bracket
Push to remove
NOTE)
Drain piping
corner
Remove the connectors after unlocking the lock

of the housing.
3) Take off screws (M5, 4 pcs.) fixing the
ceiling panel.
4) Push the temporary bracket to inner side
to remove the ceiling panel.
Ceiling panel
2. Attachment
Temporary
bracket
1) Hook the panel to the temporary bracket of

the drain pan of the main body.
NOTE)
The panel has directionality. Therefore mount the
panel according to the temporary bracket and the
bracket mounting position.
2) Tighten the fixing screws. (M5, 4 pcs.)
3) Connect flap connector of the ceiling
panel to the connector
(CN33, White, 5P) of the control
P.C. board.
Cable clamp
77
Washer
based screw
Hanging section
of temporary bracket
CN33
No.
Part name
Control P.C.
board
Procedure
Remarks
1. Detachment
1) Perform works of procedure 1 -1- and 2 -1.
2) Remove the connectors connected from the control P.C. board to other parts.
CN33 : Flap motor (5P, White)
CN34 : Float switch (3P, Red)
CN41 : Terminal block of remote controller (3P, Blue)
CN40 : Terminal block of crossover between inside and outside (5P, Black)
CN68 : Drain pump (3P, Blue)
CN67 : Terminal block of power supply (3P, Black)
CN101 : TC sensor (2P, Black)
CN102 : TCJ sensor (2P, Red)
CN104 : Room temp sensor (2P, Yellow)
CN333 : Fan motor power supply (5P, White)
CN334 : Fan motor position detection (5P, White)
NOTE)
Remove the connectors after
unlocking the lock of the housing.
Ferrite core for sensor lead
3) Unlock the lock of the card

edge spacer (6 positions)
and then remove the
control P.C. board.
Card edge spacer

Drawing-out port of lead wire
Ferrite core for fan motor
2. Attachment
1) Fix the control P.C. board to the card edge spacer. (6 positions)
2) Connect the connectors as original before being removed in item 1.
NOTE)
For drawing of each wire and position of ferrite core, perform wiring same as those before removing. If there is incomplete drawing of wire, short or water leakage of the parts may be caused.
Fix the sensor lead wires with cord clamps (2 positions) so that
it does not slacken at P.C. board side and draw wires as shown in the figure.
Cord clamp
Tighten together the shield wires of the

sensor lead wires and the remote controller.
Be careful that other sensor does not fall out.
Cord clamp
Adhere on the
transformer.
Arrow view E
Please note the
float SW lead wires are
set at inner side of the
fan motor lead wires.
Turn up the sensor lead wires

and fix surely with the cord clamp.
<Details of sensor lead wire drawing>

E
As shown in the figure,
hook the sensor lead wires
to claw of the piping cover
and then pass them so that
they are stored in the groove.
Cord clamp
After mounting the piping

cover, check each lead wire
does not hit the liquid pipe.
Clamp (yellow, gray, black) lead wires

of the fan motor and arrange them
as shown in the figure.
Turn up the fan motor lead wires

(There should be no catching of
lead wire by P.C. board.)
<Details of piping cover assembly and mounting>
78
<Details of fan motor lead wire drawing>
No.
6
Part name
Electric
parts box
Procedure
Remarks
1. Detachment
1) Perform works of procedure 1 -1-and 2 -1.
2) Remove connectors of the lead wire connected to the following connectors of the control
P.C. board.
CN33 : Flap motor (5P, White)
CN34 : Float switch (3P, Red)
CN68 : Drain pump (3P, Blue)
CN101 : TC2 sensor (2P, Black)
CN102 : TCJ sensor (2P, Red)
CN333 : Fan motor power supply (5P, White)
CN334 : Fan motor position detection (5P, White)
NOTE)
Remove the connectors after unlocking the lock of the housing.
3) Remove each lead wire
from cord clamps in the
electric parts box.
4) Remove the power supply
wiring, remote controller
wiring, and crossover wiring.
5) Take off screws
(4 10, 2 pcs.)
Ferrite core for sensor lead
Card edge spacer

Drawing-out port of lead wire
Ferrite core for fan motor
2. Attachment
1) Tighten screws (4 10, 2 pcs.) fixing the electric parts box.
2) Connect the connectors as original before being removed in item 1.
3) Perform power supply wiring, remote controller wiring, and crossover wiring between inside
and outside.
NOTE)
For drawing of each wire and position of ferrite core, perform wiring same as those before removing. If there is incomplete drawing of wire, short or water leakage of the parts may be caused.
Fix the sensor lead wires with cord clamps (2 positions) so that
it does not slacken at P.C. board side and draw wires as shown in the figure.
Cord clamp
Tighten together the shield wires of the

sensor lead wires and the remote controller.
Be careful that other sensor does not fall out.
Cord clamp
Adhere on the
transformer.
Arrow view E
Please note the
float SW lead wires are
set at inner side of the
fan motor lead wires.
Turn up the sensor lead wires


E
As shown in the figure,
hook the sensor lead wires
to claw of the piping cover
and then pass them so that
they are stored in the groove.
Cord clamp
After mounting the piping

cover, check each lead wire
does not hit the liquid pipe.
Clamp (yellow, gray, black) lead wires

of the fan motor and arrange them
as shown in the figure.
Turn up the fan motor lead wires

(There should be no catching of
lead wire by P.C. board.)
<Details of piping cover assembly and mounting>
79
<Details of fan motor lead wire drawing>
No.
7
Part name
Bell mouth
Procedure
Remarks
1. Detachment
2) Take off the lead wires of the drain pump, float
switch, and fan motor from the bell mouth.
3) Take off fixing screws of the bell mouth.
(4 10, 4 pcs.)
Fixing claws
for lead wires
Bell mouth
2. Attachment
1) Mount the bell mouth with screws.
(4 10, 4 pcs.)
2) Perform wiring as original before being
removed.
NOTE)
Pinch lead wire of the drain pump and float switch
with lead wire fixing claws of the bell mouth and
perform wiring along the guide.
Turbo fan
4 screws
Fixing claws
for lead wires
1. Detachment
2) Take off the nut (M6 nut 1 pc.) of the turbo fan.
Fan motor fixing

M6 nut
NOTE)
Use a box wrench for attachment and detachment of
the turbo fan. If using a monkey wrench etc, the
other parts may be damaged in work.
2. Attachment
1) Insert the turbo fan into the fan motor so that
boss of the turbo fan matches with cut surface
of the fan motor, and then tighten it with nut.
NOTE)
Tightening torque of turbo fan: 5.9 0.6N.m
Apply looseness-preventing agent to the nut after
tightening.
Turbo fan
80
Drawing-out port of
fan motor lead wire
No.
9
Part name
Fan motor
Procedure
Remarks
1. Detachment
1) Perform work of procedure 8 .
2) Take off screws fixed with lead holding bracket
of the fan motor. (4 10, 2 pcs.)
3) Open wiring holding part of the fan motor lead
holding bracket and then take off the fan motor
lead wire from the bracket.
4) Take off fixing nuts for the fan motor to remove
the fan motor.(M 3 pcs.)
Fixing nut for fan motor
Fan motor
NOTE)
Use a box wrench for attachment and detachment of
the fan motor fixing nuts; otherwise contact or
damage for other parts may be caused.
Fan motor
earth wire
Fixing screw
Holding metal fitting

for fan motor lead wire
2. Attachment
1) Mount the fan motor with the fixing nuts.
NOTE)
Tightening torque of turbo fan: 5.9 0.6N.m
Apply looseness-preventing agent (as paints) to the
nut after tightening.
2) Attach the fan motor lead wire holder.
NOTE)
For the fan motor lead wire, fix the lead wire
holding bracket along concave part of the ceiling
panel. (There is no catch-in of lead wire and ceiling
panel.)
When fixing the lead wire bracket, tighten fan
motor earth together with the lead wire.
For this work, do not use an electric screwdriver.
Take note the damage of earth terminal.
3) Bend the lead wire holding part and fix the fan
motor lead wire.
Wiring holding bracket
NOTE)
Be sure that the lead wire does not come to contact
with the heat exchanger.
Fan motor lead wire
81
Concave part
of ceiling panel
No.
10
Part name
Drain pan
Procedure
Remarks
1. Detachment
2 screws
1) Perform works of procedure 4 -1 and 7 -1.

2) Remove the drain cap and extract drain water
accumulated in the drain pan.
NOTE)
Soc
Socket
et of drain
drain pan
When removing the drain cap, be sure to receive

drain water with a bucket, etc.
3) Take off screws fixing the drain pan to remove
the drain pan. (410, 4 pcs.)
Drain
Drain pan
2. Attachment
1) Insert the drain cap into the drain pan.
NOTE)
Put a stick or others into hole at center of the drain
cap, and then insert the drain cap until it strikes on
the socket of the drain pan.
2 screws
2) Draw each lead wire to the correct positions,

and then insert the drain pan into the main
unit.
NOTE)
Piping holder rib

r
Draw lead wires of the drain pump and the float

switch along the guide of the cabinet. Insert the drain
pan along the guides of sensors (TC1, TC2, TCJ)
and PMV lead wire.
The drain pan and each lead wire are not caught in;
otherwise water leakage may be caused.
3) Fix the drain pan with screws. (4 10, 4 pcs.)
11
Drain pump
assembly
Piping holder
Lead wire
1. Detachment
2) Pick up the hose band and slide it from the
pump connecting part to remove the drain
hose.
drain pump assembly, and then move hooking
claw (1 position) of the main body from the
drain pump assembly to remove the drain
pump assembly.
Drain pump assembly

Hose band
2. Attachment
White marked position
1) Fix the drain pump assembly as original.

Drain hose
NOTE)
For fixing, use a hooking claw (1 position) and
screws (3 positions).
When screwing, be sure not to run on the hooking
claw at main body side.
2) Mount the drain hose and the hose band as
original.
NOTE)
Insert the drain hose up to the end of pump connecting part, and then put the band at white marked
position of the hose.
Fixing screw
for drain pump
82
Hooking claw
for drain pump
No.
12
Part name
Heat
exchanger
Procedure
Remarks
1. Detachment
1) Recover refrigerant gas.
2) Remove the refrigerant pipe at indoor unit
side.
piping cover to remove the piping cover.
5) While holding the heat exchanger, remove
fixing band and fixing screws (4 10, 3 pcs.)
and then remove the heat exchanger.
Piping cover
2. Attachment
1) Mount parts in order, heat exchanger
fixing band piping cover drain pan
bell mouth electric parts box as original.
3 screws
NOTE)
Arrange wires as original.
2) Attach the removed connectors and wires as
original.
3) Connect the refrigerant pipe as original, and
then perform vacuuming.
Fixing band
Fixing band for

heat exchanger
TCJ sensor
(Black)
TC sensor
(Red)
2 fixing screws for heat exchanger
Wind pipe cover over the header,

attach a sensor on it.
(Do not set the head of tie wrap upward.)
83
14. EXPLODED VIEWS AND PARTS LIST

14-1. Ceiling Panel
RBC-UM11PG(W)E
308
302
307
315
316
309
314
311
304
312
310
313
305
303
306
301
Location
No.
Part No.
301
302
303
304
305
306
307
308
43109414
4302C059
43180332
43497012
43100322
43107259
43122089
43122090
Description
Location
No.
Part No.
309
310
311
312
313
314
315
316
43122091
43122092
43122093
43107261
43100369
43107262
43107263
43160580
Grille, Air Inlet

Motor, Louver
Air Filter
Screw
Cover, Panel Assy
Grille, Catch
Cover, Joint (For Joint)
Cover, Joint (For Motor)
84
Description
Joint, Kit (A)
Joint, Kit (B)
Louver
Outlet, Air Form
Panel
Fix, Motor
Fix, Motor
Lead, Motor
14-2. Compact 4-way Air Discharge Cassette Type
234
223
202
221
203
231
228
201
209
235
241
236
205
247
233
237
224
222
242
226
225
227
230
215
213
220
211
219 216 217
85
238, 239, 240
Location
No.
Part No.
Description
201
202
203
205
209
211
213
215
216
217
219
220
221
222
223
224
225
226
227
228
230
231
233
234
235
236
237
238
43120225
43122094
43172185
43121738
4314J329
4314Q034
43047685
43149351
43047688
43149353
43147195
43049697
43170244
43079249
43060029
43163052
43119482
43170248
43119483
43097212
43019904
43179135
43139137
43162056
43177001
43151289
43179126
43166002
239
43166004
240
43166005
241
43166006
242
247
4318T743
43197155
Fan Assy, Turbo

Bell Mouth
Pan Assy, Drain
Motor, Fan, SWF-230-60-1R
Refrigeration, Cycle Assy
Distributor Assy
Nut, Flare, 1/4 IN
Socket, 1/4 IN
Nut, Flare, 1/2 IN
Socket, 1/2 IN
Bonnet, 1/2 IN
Bonnet
Hose, Drain
Band, Hose
Filter, Noise
Holder, Lead, Fan Motor
Cover Assy Body
Hose, Drain
Cover, Pipe
Nut
Holder, Sensor
Band, Hose
Rubber, Cushion
Cover, E-Box
Pump, Drain
Switch, Float
Rubber, Pump Drain
Remote Controller,
SX-A1EE
Remote Controller,
SX-A11JE2
Remote Controller,
EX-W2JE2
Remote Controller,
WH-H1JE2
Owners Manual
Washer
86
402
401
405
404
403
Location
No.
Part No.
401
43160565
402
43050425
403
404
43050426
43160568
405
4316V280
Description
Terminal Block, 3P,
AC250V, 20A,
Sensor Assy, Service
TC (F6)
Sensor, Service, TA
Terminal, 2P,
AC30V/DC42V, 1A
P.C. Board Assy,
MMC-1402 (220V 240V)
87
402
404
405
403
Location
No.
Part No.
Description
401
402
403
404
43160565
43050425
43050426
43160568
405
4316V280
Terminal Block, 3P, 20A

Sensor, TC (F6)
Sensor, TA
Terminal Block, 2P,
1A, AC30V
P.C. Board Assy, MMC-1402
88
401
WARNINGS ON REFRIGERANT LEAKAGE

Important
Check of Concentration Limit

The room in which the air conditioner is to be
installed requires a design that in the event of
refrigerant gas leaking out, its concentration will not
exceed a set limit.
The refrigerant R410A which is used in the air
conditioner is safe, without the toxicity or combustibility
of ammonia, and is not restricted by laws to be imposed
which protect the ozone layer. However, since it
contains more than air, it poses the risk of suffocation if
its concentration should rise excessively. Suffocation
from leakage of R410A is almost non-existent. With the
recent increase in the number of high concentration
buildings, however, the installation of multi air
conditioner systems is on the increase because of the
need for effective use of floor space, individual control,
energy conservation by curtailing heat and carrying
power etc.
Most importantly, the multi air conditioner system is able
to replenish a large amount of refrigerant compared
with conventional individual air conditioners. If a single
unit of the multi conditioner system is to be installed in a
small room, select a suitable model and installation
procedure so that if the refrigerant accidentally leaks
out, its concentration does not reach the limit (and in the
event of an emergency, measures can be made before
injury can occur).
In a room where the concentration may exceed the limit,
create an opening with adjacent rooms, or install
mechanical ventilation combined with a gas leak
detection device.
The concentration is as given below.
Total amount of refrigerant (kg)
Min. volume of the indoor unit installed room (m)
Concentration limit (kg/m)
NOTE 2 :
The standards for minimum room volume are as
follows.
(1) No partition (shaded portion)
(2) When there is an effective opening with the

adjacent room for ventilation of leaking refrigerant
gas (opening without a door, or an opening 0.15%
or larger than the respective floor spaces at the top
or bottom of the door).
Outdoor unit
Refrigerant piping
Indoor unit
(3) If an indoor unit is installed in each partitioned room

and the refrigerant piping is interconnected, the
smallest room of course becomes the object. But
when a mechanical ventilation is installed
interlocked with a gas leakage detector in the
smallest room where the density limit is exceeded,
the volume of the next smallest room becomes the
object.
Refrigerant piping
Outdoor unit
The concentration limit of R410A which is used in multi

air conditioners is 0.3kg/m.
NOTE 1 :
If there are 2 or more refrigerating systems in a single
refrigerating device, the amounts of refrigerant should
be as charged in each independent device.
e.g., charged
amount (10kg)
Outdoor unit
e.g.,
charged amount (15kg)
Very
small
room
Indoor unit
Small
room
Medium
room
Large room
Mechanical ventilation device - Gas leak detector
NOTE 3 :
The minimum indoor floor area compared with the
amount of refrigerant is roughly as follows:
(When the ceiling is 2.7m high)
40
m 35
Room A Room B Room C Room D Room E Room F

Indoor unit
For the amount of charge in this example:

The possible amount of leaked refrigerant gas in
rooms A, B and C is 10kg.
The possible amount of leaked refrigerant gas in
rooms D, E and F is 15kg.
Min. indoor floor area
30
25
Range below the

density limit
of 0.3 kg/m
(countermeasures
not needed)
20
15
10
Range above
the density limit
of 0.3 kg/m
(countermeasures
needed)
5
0
10
20
30
Total amount of refrigerant
kg
TOSHIBA CARRIER CORPORATION

2 CHOME 12-32, KONAN, MINATOKU, TOKYO, 108-0075, JAPAN
Copyright 2005 TOSHIBA CARRIER CORPORATION, ALL Rights Reserved.

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FILE NO.

ADOPTION OF NEW REFRIGERANT

2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) ............................................................ 6

3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM .................................................... 7

5. SPECIFICATIONS OF ELECTRICAL PARTS .............................................................. 12

6. REFRIGERANT R410A ................................................................................................ 13

Safety During Installation/Servicing ..................................................................................................

7. CONTROL BLOCK DIAGRAM..................................................................................... 24

8. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS .............................. 33

Summary of Troubleshooting ..............................................................................................................

10. REPLACEMENT OF SERVICE INDOOR P.C. BOARD ................................................ 57

12. ADDRESS SETUP ....................................................................................................... 72

13. DETACHMENTS ........................................................................................................... 76

14. EXPLODED VIEWS AND PARTS LIST ........................................................................ 84

1 phase 230V (220 240V) 50Hz

Energy efficiency class

Energy efficiency class

Zinc hot dipping steel plate

Moon-white (Muncel 2.5GY 9.0/0.5)

Standard air flow

13.3 / 11.2 / 9.1

Long life filter

Controller (Sold separately)

Sound pressure level

Sound power level

1-2. Combination Specifications of Indoor Units with Outdoor Units

Standard capacity (Note 1)

1 phase 230V (220-240V) 50Hz

1-3. Operation Characteristic Curve

Compressor speed (rps)

Compressor speed (rps)

<Super Digital Inverter>

Compressor speed (rps)

Compressor speed (rps)

2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

595 to 660 Ceiling open dimension

Drain-up standing-up size

Space required for

Knockout for flesh

Electric parts box

For branch duct knockout

575 Unit external dimension

Bottom face of ceiling

575 Unit external dimension

525 Hanging bolt pitch

Drain discharge port

700 Panel external dimension

595 to 660 Ceiling open dimension

3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM

Refrigerant pipe at gas side

* The refrigerating cycle of the indoor units differs according to

* 4 poles are provided to this compressor.

Pipe surface temperature (C)

Cooling Overload 3.90

Low load 1.90

Heating Overload 2.86

Low load 1.86

* 4 poles are provided to this compressor.

Control P.C. Board for