Im-R32 FCFV NCCK
Im-R32 FCFV NCCK
Im-R32 FCFV NCCK
INSTALLATION MANUAL
R32 SPLIT SERIES
R08019049980
OUTLINE DIMENSIONS
INDOOR OUTLINE 2
OUTDOOR OUTLINE 2
SAFETY PRECAUTIONS
4
ACCESSORIES
6
CHOOSING AN INSTALLATION SITE
6
INDOOR/OUTDOOR UNIT INSTALLATION DRAWINGS
7
INDOOR INSTALLATION GUIDELINE
C F
B D E
A G
Dimension A B C D E F G
568 146
13
128
300
326
TOP VIEW
300 22 845 67
615
100 74
610 241
12
350
TOP VIEW
930 66
350 23
695
75
98
SIDE VIEW FRONT VIEW SIDE VIEW
TOP VIEW
22
1030 40 400
33 740
826
72
57 90 40
26
Read the precautions in this manual This appliance is filled with R32.
carefully before operating the unit.
• The precautions described herein are classified as WARNING and CAUTION.
They both contain important information regarding safety. Be sure to observe all precautions without fail.
• Meaning of WARNING and CAUTION notices.
WARNING Failure to follow these instructions properly may result in personal injury or loss of life.
CAUTION Failure to observe these instructions properly may result in property damage or personal injury,
which may be serious depending on the circumstances.
• The safety marks shown in this manual have the following meanings:
Be sure to follow the instructions. Be sure to establish an earth connection. Never attempt.
• After completing installation, conduct a trial operation to check for faults and explain to the customer how to operate
the air conditioner and take care of it with the aid of operation manual.
WARNING
• Ask your dealer or qualified person to carry out installation work. Do not attempt to install the air conditioner yourself. Improper
installation may result in water leakage, electric shocks or fire.
• This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial use by lay persons.
• This appliance is not intended for use by persons, including children, with reduced physical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a
person responsible for their safety.
• Children should be supervised to ensure that they do not play with the appliance.
• Install the air conditioner according to the instructions given in this manual. Incomplete installation may cause water leakage,
electrical shock, or fire.
• Be sure to use only the specified accessories and parts for installation work. Failure to use the specified parts may result in the
unit falling, water leakage, electric shocks or fire.
• Install the air conditioner on a foundation strong enough to withstand the weight of the unit. A foundation of insufficient strength
may result in the equipment falling and causing injury.
• Electrical work must be performed in accordance with relevant local and national regulations and with instructions in this installation
manual. Be sure to use a dedicated power supply circuit only. Insufficiency of power circuit capacity and improper workmanship
may result in electric shocks or fire.
• Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance.
• Use a cable of suitable length. Do not use tapped wires or an extension lead, as this may cause overheating, electric shocks or fire.
• Make sure that all wiring is secured, the specified wires are used, and that there is no strain on the terminal connections or wires.
Improper connections or securing of wires may result in abnormal heat build-up or fire.
• When wiring the power supply and connecting the wiring between the indoor and outdoor units, position the wires so that the control
box lid can be securely fastened. Improper positoning of the control box lid may result in electric shocks, fire or overheating terminals.
• After connecting interconnecting and supply wiring, be sure to shape the cables so that they do not put undue force on the electrical
covers or panels. Install covers over the wires. Incomplete cover installation may cause terminal overheating, electrical shocks, or fire.
• When installing or relocating the air conditioner, be sure to bleed the refrigerant circuit to ensure it is free of air, and use only the
specified refrigerant (R32). The presence of air or other foreign matter in the refrigerant circuit cause abnormal pressure rise, which
may result equipment damage and even injury.
• The installation height from the floor must be over 2.5m.
• If refrigerant gas leaks during installation, ventilate the area immediately.
Toxic gas may be produced if the refrigerant comes into contact with fire.
• After completing installation, check for refrigerant gas leakage.
Toxic gas may be produced if the refrigerant gas leaks into the room and comes into contact with a source of fire, such as
a fan heater, stove or cooker.
4
Thermal Insulation
Drain Hose
Wrap the insulation pipe
with the finishing tape
from bottom to top.
Front panel
Air Intake
Air Intake
Air Discharge
Be sure to read this manual before installing the air-conditioner indoor unit.
• Voltage supply fluctuation must not exceed +10% of rated voltage. Electricity supply lines must be
independent of welding transformers which can cause high supply fluctuation.
• Ensure that the location is convenient for wiring, piping and drainage.
• Do not exert pressure on the resin parts when operating the unit or when moving it after opening.
• Do not move the unit from packaging while moving, until it reaches the installation site. Use safe
material or protection plates when unpacking it or lifting it to avoid damage or scratches to the unit.
Beam
0.3m or less
1m or more
2.5m or more
Obstacle
Floor
5m or more
• Measure and mark the position for the hanging rod. Drill the hole for the angle nut on the ceiling and
fix the hanging rod.
• The installation template is extended according to temperature and humidity. Check on dimensions in
use.
• The dimensions of the installation are the same as those of the ceiling opening dimensions.
• Before ceiling laminating work is completed, be sure to fit the installation template to the indoor unit.
NOTE
Be sure to discuss the ceiling drilling work with the installers concerned.
INDOOR UNIT
Ceiling Board
Installation guide
30mm
• Hold the unit and hang it on the hanging rod with the nut and washer.
• Adjust the unit height to 30mm between the indoor unit bottom surface and the ceiling surface, then
check the clearance using the detachable guide provided with the installation template to ensure it is
accurate.
• Confirm with a level gauge that the unit is installed horizontally and tighten the nut and bolt to prevent
unit falling and vibration.
• Open the ceiling board along the outer edge of the paper installation template.
4 DRAIN PIPING
INDOOR
UNIT height of drain pipe to prevent water leak.
• Avoid installing the drain pipe in up and down
slope to prevent reversed water flow.
Panel Ceiling
• During the drain pipe connection, be careful not
Flexible Hose Detail A to exert extra force on the drain connector at
Pipe Clamp indoor unit.
Pipe Clamp • The outside diameter of the drain connection at
the flexible drain hose is 20mm.
• Be sure to execute heat insulation (polyethylene
foam with thickness more than 8.0mm) on
the drain piping to avoid the condensed water
dripping inside the room.
• Connect the main drain pipe to the flexible drain
Drain Test hose.
• Feed water from flexible drain hose to check the
Feed Water piping for leakage.
• When the test is completed, connect the flexible
Main Drain Pipe
drain hose to the drain connector on the indoor
unit.
CAUTION
This indoor unit uses a drain pump for condensed water drainage. Install the unit horizontally to prevent water
leakage or condensation around the air outlet.
10
IMPORTANT: * The figures shown in the table are for information purpose only. They should be checked
and selected to comply with the local/national codes of regulations. This is also subject
to the type of installation and conductors used.
** The appropriate voltage range should be checked with label data on the unit.
FCFV50/60/85A- RGFV50/60/85A
N N
L Power Fuse /
Supply Circuit Main
N Cable Breaker Switch
L / L1 Power
N / L2
Supply There must be an all pole
disconnection in the supply
mains with a contact
separation of at least 3mm.
FCFV100A - RGFV100A
Outdoor Unit
Terminal Block
COMP
Indoor Unit
Terminal Block L
COMP Interconnection Cable N
L
N
L
Fuse / Power
N
Main Circuit Supply
Switch Breaker Cable
L / L1
There must be an all pole Power N / L2
disconnection in the supply Supply
mains with a contact
separation of at least 3mm.
11
FCFV125A - RGFV125A
Indoor Unit
Terminal Block
Outdoor Unit
Terminal Block
N Interconnection Cable COMP
L L
COMP N
R
Fuse / Power
S
Main Circuit Supply
Switch Breaker Cable T
R / L1
Power S / L2
T / L3 N
Supply
N
There must be an all pole
disconnection in the supply
mains with a contact
separation of at least 3mm.
12
Streamer
Releasable
Cable Tie
Figure A Figure B
Electric wire
Round crimp-style terminal
• Use the correct screwdriver for terminal screws tightening. Unsuitable screwdrivers can damage the
screw head.
• Over tightening can damage the terminal screws.
• Do not connect wire of different gauge to same terminal.
• Keep wiring in an orderly manner. Prevent the wiring from obstructing other parts and the terminal box cover.
Connect wires of the same Do not connect wires of the Do not connect wires of
gauge to both side. same gauge to one side. different gauges.
13
1200 or 1200 or
less less
More than 50 More than 50 More than 300 More than 300
Top view Top view
14
3 REFRIGERANT PIPING
CAUTION
1) Use the flare nut fixed to the main unit. (To prevent cracking of the flare nut by aged deterioration.)
2) To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare. (Use refrigeration oil for R32.)
3) Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and gas leakage.
Align the centres of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten them fully with the torque
wrenches.
[Apply oil] [Tighten]
Apply refrigeration oil to the inner surface of the flare. Torque wrench
Pipe union
Do not apply refrigeration oil to the flare nut Flare nut
to avoid tightening with excessive torque.
Pipe Size, mm (in) Torque, Nm/(ft-lb)
1. Cautions on pipe handling 6.4 (1/4") 18 (13.3)
1) Protect the open end of the pipe against dust and 9.5 (3/8") 42 (31.0)
moisture. 12.7 (1/2") 55 (40.6)
2) All pipe bends should be as gentle as possible. 15.9 (5/8") 65 (48.0)
Use a pipe bender for bending. 19.1 (3/4") 78 (57.6)
15
1) Connect projection side of charging hose (which comes from gauge manifold) to gas stop valve’s service port.
2) Fully open gauge manifold’s low-pressure valve (Lo) and completely close its high-pressure valve (Hi).
(High-pressure valve subsequently requires no operation.)
3) Do vacuum pumping and make sure that the compound pressure gauge reads – 0.1MPa (– 760mmHg)*1.
4) Close gauge manifold’s low-pressure valve (Lo) and stop vacuum pump. (Keep this state for a few minutes to
make sure that the compound pressure gauge pointer does not swing back.)*2.
5) Remove covers from liquid stop valve and gas stop valve.
6) Turn the liquid stop valve’s rod 90 degrees counterclockwise with a hexagonal wrench to open valve.
Close it after 5 seconds, and check for gas leakage. Using soapy water, check for gas leakage from indoor unit’s
flare and outdoor unit’s flare and valve rods. After the check is complete, wipe all soapy water off.
7) Disconnect charging hose from gas stop valve’s service port, then fully open liquid and gas stop valves.
(Do not attempt to turn valve rod beyond its stop.)
8) Tighten valve caps and service port caps for the liquid and gas stop valves with a torque wrench at the specified
torques.
*1. Pipe length vs. vacuum pump run time
Pipe length Up to 15 metres More than 15 metres
Run time Not less than 10 min. Not less than 15 min.
*2. If the compound pressure gauge pointer swings back, refrigerant may have water content or a loose pipe joint may
exists. Check all pipe joints and retighten nuts as needed, then repeat steps 2) through 4).
16
• When flared joints are reused indoors,the flare part shall be re-fabricated.
• Avoid installation of the air conditioner in a place where there is danger of exposure to continuously
operating open flames (for example an operating electric heaters).
• Any person who is involved with working on or breaking into a refrigerant circuit should hold a current
valid certificate from an industry-accredited assessment authority, which authorises their competence to
handle refrigerants safely in accordance with an industry recognised assessment specification.
• Checking for presence of refrigerant
The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure the
technician is aware of potentially flammable atmospheres. Ensure that the leak detection equipment being
used is suitable for use with flammable refrigerants, i.e. nonsparking, adequately sealed or intrinsically safe.
• Presence of fire extinguisher
If any hot work is to be conducted on the refrigeration equipment or any associated parts, appropriate fire
extinguishing equipment shall be available to hand. Have a dry powder or CO2 fire extinguisher adjacent
to the charging area.
• No ignition sources
All possible ignition sources, including cigarette smoking, should be kept sufficiently far away from the
site of installation, repairing, removing and disposal, during which flammable refrigerant can possibly be
released to the surrounding space. “No Smoking” signs shall be displayed.
• The following checks shall be applied to installations:
– marking to the equipment continues to be visible and legible. Markings and signs that are illegible
shall be corrected;
– refrigeration pipe or components are installed in a position where they are unlikely to be exposed to
any substance which may corrode refrigerant containing components, unless the components are
constructed of materials which are inherently resistant to being corroded or are suitably protected
against being so corroded.
• Initial safety checks shall include:
– that capacitors are discharged, this shall be done in a safe manner to avoid possibility of sparking
– there shall be no live electrical components and wiring are exposed while charging, recovering or
purging the system;
• Repair to intrinsically safe components
Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not
exceed the permissible voltage and current permitted for the equipment in use.
Replace components only with parts specified by the manufacturer.
• Leak detection methods
Ensure that the detector is not a potential source of ignition (for example a halide torch) and is suitable for
the refrigerant used. Leak detection equipment shall be set at a percentage of the LFL of the refrigerant
(for R32, LFL is 13%) and shall be calibrated to the refrigerant employed and the appropriate percentage
of gas (25% maximum) is confirmed.
Leak detection fluids are suitable for use with most refrigerants but the use of detergents containing chlorine
shall be avoided as the chlorine may react with the refrigerant and corrode the copper pipe-work. If a leak
is suspected, all naked flames shall be removed/extinguished. If a leakage of refrigerant is found which
requires brazing, all of the refrigerant shall be recovered from the system, or isolated (by means of shut
off valves) in a part of the system remote from the leak. Oxygen free nitrogen (OFN) shall then be purged
through the system both before and during the brazing process.
17
18
19
IR Signal Receiver
When an infrared remote control operating signal
has been transmitted, the signal receiver on
the indoor unit will respond as below to confirm
acceptance of the signal transmission.
OFF to ON 2 short beep
ON to OFF 1 long beep
Others 1 short beep
Cooling Unit
The table shows the LED indicator lights for the air LED INDICATOR LIGHTS
conditioner unit under normal operation and fault
conditions.
The LED indicator lights are located at the side of
the air conditioner unit.
COOL mode - - -
FAN mode - - -
DRY mode - - -
ECO+ mode - - -
ON BLINKING
20
LED Indicator Lights : Phase Sequential For Outdoor Cooling Unit with 3 Phase
A protective device (phase sequential) is fitted to prevent incorrect wiring of the electrical phases that
require three phase power supply. When the three phases are not connected correctly, the phase
sequential operates, and the unit will not start. This device is located in the control box of the outdoor
unit.
The following table shows the LED indicator light for phase protector under normal operation and fault
conditions.
Normal operation -
Reverse phase Switch off the unit. Check the 3 phase wiring
T phase missing Switch off the unit. Check the 3 phase wiring
S phase missing Switch off the unit. Check the 3 phase wiring
R phase missing Switch off the unit. Check the 3 phase wiring
OPERATING RANGE
COOLING
OUTDOOR TEMP.
(°C DB)
46
43
19
0 14 19 23
INDOOR TEMP.
(°C WB)
21
DIMENSI RANGKA
RANGKA DALAMAN 2
RANGKA LUARAN 2
LANGKAH-LANGKAH KESELAMATAN
4
AKSESORI
6
PEMILIHAN TAPAK PEMASANGAN
6
LUKISAN PEMASANGAN UNIT DALAMAN/LUARAN
7
GARIS PANDUAN PEMASANGAN DALAMAN
C F
B D E
A G
Dimensi A B C D E F G
568 146
13
128
300
326
PANDANGAN ATAS
300 22 845 67
615
100 74
610 241
12
350
PANDANGAN ATAS
930 66
350 23
695
75
98
PANDANGAN TEPI PANDANGAN HADAPAN PANDANGAN TEPI
PANDANGAN ATAS
22
1030 40 400
33 740
826
72
57 90 40
26
Penebat Haba
Hos Saliran
Balut paip penebat dengan pita
kemasan dari bawah ke atas.
Panel hadapan
Pengambilan Udara
Pengambilan Udara
Pelepasan Udara
Pastikan anda membaca manual ini sebelum memasang unit dalaman penyaman udara.
• Turun naik bekalan voltan mestilah tidak melebihi +10% daripada voltan terkadar. Aliran bekalan elektrik mestilah
tidak dikongsi dengan transformer kimpalan yang boleh menyebabkan bacaan turun naik bekalan tinggi.
• Pastikan tempat yang dipilih adalah sesuai untuk kerja pendawaian, perpaipan dan saliran.
• Jangan kenakan tekanan pada bahagian resin semasa mengendalikan atau mengalihkan unit selepas membukanya.
• Keluarkan unit daripada pembungkusan hanya selepas tiba di tapak pemasangan, bukan sewaktu mengalihkannya.
Gunakan bahan selamat atau plat perlindungan sewaktu mengeluarkan atau mengangkat unit untuk mengelakkan
daripada kerosakan atau calar pada unit tersebut.
Rasuk
Halangan
Lantai
5m atau lebih
• Ukur dan tanda kedudukan rod gantung. Gerudikan lubang mengikut kedudukan nat pada siling dan betulkan rod
gantung.
• Templat pemasangan digunakan mengikut suhu dan kelembapan. Periksa dimensi yang digunakan.
• Ukuran pemasangan adalah sama dengan ukuran bukaan siling.
• Sebelum kerja pemasangan lamina siling diselesaikan, pastikan anda memasang templat pemasangan pada unit
dalaman.
NOTA
Pastikan kerja penggerudian siling telah dibincangkan terlebih dahulu dengan jurupasang berkenaan.
UNIT DALAMAN
Papan Siling
Panduan pemasangan
30mm
• Pegang unit dan gantungkannya pada rod gantung dengan nat dan sesendal.
• Laraskan ketinggian unit kepada 30mm di antara permukaan bawah unit dalaman dengan permukaan siling.
Kemudian, periksa ruang di celahnya menggunakan panduan boleh tanggal yang disediakan bersama dengan
templat pemasangan untuk memastikan ukurannya tepat.
• Gunakan tolok aras untuk memastikan unit dipasang secara melintang dan ketatkan nat dan bolt untuk mengelakkan
unit daripada jatuh dan bergetar.
• Buka papan siling di sepanjang sisi sebelah luar templat pemasangan kertas.
4 PERPAIPAN SALIRAN
UNIT
DALAMAN ketinggian paip saliran untuk mengelakkan kebocoran
air.
• Elakkan daripada memasang paip saliran berbentuk
Panel Siling
melengkung ke atas dan kemudian ke bawah untuk
Hos Fleksibel Pandangan A mengelakkan aliran air songsang.
Pengapit Paip Pengapit • Semasa penyambungan paip saliran, berhati-hati
Paip agar tidak mengenakan daya yang kuat terhadap
penyambung saliran pada unit dalaman.
• Diameter luar sambungan saliran pada hos saliran
fleksibel ialah 20mm.
• Pastikan anda melakukan penebatan haba (busa
polietilena dengan ketebalan lebih daripada 8.0mm)
pada perpaipan saliran untuk mengelakkan daripada
Ujian Saliran air yang tersejat menitis di dalam bilik.
• Sambungkan paip saliran utama dengan hos saliran
Isi Air fleksibel.
• Masukkan air daripada hos saliran fleksibel untuk
Paip Saliran Utama
memeriksa perpaipan bagi mengesan kebocoran.
• Apabila ujian selesai, sambungkan hos saliran
fleksibel dengan penyambung saliran pada unit
dalaman.
Hos Saliran Fleksibel
AWAS
Unit dalaman ini menggunakan pam salir untuk saliran air tersejat. Pasang unit secara melintang untuk menghalang
kebocoran air atau penyejatan di sekeliling salur keluar udara.
10
PENTING: * Rajah ditunjukkan dalam jadual adalah untuk tujuan maklumat sahaja. Sambungan pendawaian
elektrik perlu diperiksa dan dipilih agar mematuhi kod peraturan tempatan/kebangsaan. Perkara ini
juga tertakluk kepada jenis pemasangan dan konduktor yang digunakan.
** Julat voltan yang bersesuaian perlu diperiksa dengan data label pada unit.
FCFV50/60/85A- RGFV50/60/85A
N N
L Kabel Fius /
Bekalan Pemutus Suis
N Kuasa Litar Utama
L / L1 Bekalan
N / L2 Mesti terdapat pemutusan
Kuasa sambungan semua pola
dalam sesalur utama
dengan pengasingan
sekurang-kurangnya 3 mm.
FCFV100A - RGFV100A
Blok Terminal
Unit Luaran
COMP
Blok Terminal
Unit Dalaman L
COMP Kabel Penyambung N
L
N
L
Fius / Kabel
N
Suis Pemutus Bekalan
Utama Litar Kuasa
Mesti terdapat pemutusan L / L1
sambungan semua pola Bekalan N / L2
dalam sesalur utama Kuasa
dengan pengasingan
sekurang-kurangnya 3 mm.
11
FCFV125A - RGFV125A
Blok Terminal
Unit Dalaman
Blok Terminal
Unit Luaran
N Kabel Penyambung COMP
L L
COMP N
R
Fius / Kabel
S
Suis Pemutus Bekalan
Utama Litar Kuasa T
R / L1
Bekalan S / L2
T / L3 N
Kuasa
N
12
Streamer
Pengikat
Kabel Boleh
Dilepas
Rajah B
Rajah A
Wayar elektrik
Terminal gaya keriting bulat
• Guna pemutar skru yang betul untuk mengetatkan skru terminal. Pemutar skru yang tidak sesuai boleh merosakkan
kepala skru.
• Terlalu ketat boleh merosakkan skru terminal.
• Jangan sambungkan wayar tolok berbeza ke terminal sama.
• Pastikan pendawaian terancang. Elakkan pendawaian daripada menghalang bahagian lain dan penutup kotak terminal.
Sambungkan wayar tolok yang Jangan sambungkan wayar tolok Jangan sambungkan wayar
sama ke kedua-dua bahagian. yang sama ke satu bahagian. tolok berbeza.
13
14
3) Gunakan paip penebat haba untuk paip bahan penyejuk gas dan cecair.
15
1) Sambungkan bahagian pantulan hos pengecasan (yang datang daripada tolok pancarongga ) ke port servis injap penahan gas.
2) Buka sepenuhnya semasa injap tekanan rendah (Lo) dan tutup sepenuhnya semasa injap tekanan tinggi (Hi) tolok
pancarongga.
(Injap tekanan tinggi seterusnya tidak memerlukan operasi.)
3) Buat pengempaman vakum dan pastikan tolok tekanan kompaun membaca – 0.1Mpa (– 760mmHg)*1.
4) Tutup injap tekanan rendah (Lo) tolok pancarongga dan hentikan pam vakum. (Kekalkan keadaan ini untuk beberapa minit
untuk memastikan penunjuk tolok tekanan kompaun tidak berayun balik.)*2.
5) Tanggalkan penutup daripada injap penahan cecair dan injap penahan gas.
6) Pusingkan rod injap penahan cecair 90 darjah mengikut lawan arah jam dengan perengkuh heksagon untuk membuka injap.
Tutup selepas 5 saat, dan periksa untuk kebocoran gas. Gunakan air bersabun, periksa kebocoran gas untuk pengembangan
unit dalaman dan pengembangan unit luaran serta rod injap. Selepas pemeriksaan selesai, lap semua air bersabun sehingga
kering.
7) Putuskan sambungan hos pengecasan daripada port servis injap penahan gas, kemudian buka sepenuhnya injap penahan
cecair dan gas.
(Jangan cuba memusingkan rod injap melebihi tahap penutupannya.)
8) Ketatkan penutup injap dan penutup port servis untuk injap penahan cecair dan gas dengan perengkuh kilasan mengikut
perengkuh yang ditentukan.
16
• Apabila sambungan yang dikembangkan ialah bahagian dalaman yang digunakan semula, bahagian kembangan
boleh dipasang semula.
• Elakkan pemasangan penyaman udara di tempat yang terdedah dengan bahaya pengendalian kebakaran terbuka
secara berterusan (contohnya pengendalian pemanas elektrik).
• Mana-mana individu yang bekerja atau memutuskan litar bahan penyejuk harus memegang sijil sah semasa daripada
pihak berkuasa penilaian industri yang diiktiraf yang memberi kuasa atas kecekapan mereka untuk mengendalikan
bahan penyejuk dengan selamat mengikut spesifikasi penilaian industri yang diiktiraf.
• Memeriksa kehadiran bahan penyejuk
Kawasan ini hendaklah diperiksa dengan pengesan bahan penyejuk yang sesuai sebelum dan semasa bekerja untuk
memastikan juruteknik sedar akan persekitaran yang berpotensi untuk mudah terbakar. Pastikan peralatan pengesanan
kebocoran yang digunakan sesuai dengan bahan penyejuk mudah terbakar, cth. tidak mengeluarkan percikan api,
dimateri dengan baik atau selamat.
• Kehadiran alat pemadam api
Jika apa-apa kerja pemanasan perlu dijalankan ke atas peralatan penyejukan atau mana-mana bahagian yang berkaitan,
peralatan pemadaman api yang sesuai digunakan untuk tangan perlu ada. Mempunyai serbuk kering atau CO2 alat
pemadam api yang berhampiran dengan kawasan mengecas.
• Tiada sumber nyalaan
Semua sumber nyalaan, termasuk rokok perlu disimpan sejauh mungkin dari tapak pemasangan, pembaikan,
pembuangan dan pelupusan semasa bahan penyejuk mudah terbakar berkemungkinan boleh dilepaskan dalam ruang
sekitarnya. Tanda “Dilarang Merokok” perlu dipaparkan.
• Pemeriksaan berikut mungkin digunakan untuk pemasangan:
– menandakan peralatan untuk dilihat dan dibaca. Menanda dan tanda yang tidak dapat dibaca perlu dibetulkan;
– paip atau komponen penyejukan dipasang pada kedudukan yang tidak terdedah kepada apa-apa bahan yang
boleh mengakis bahan penyejuk yang mengandungi komponen, melainkan komponen dibina daripada bahan
yang sememangnya tahan kakis atau sesuai dilindungi supaya tidak terkakis.
• Pemeriksaan keselamatan awal termasuk:
– kapasitor tersebut dilepaskan, ini boleh dilakukan dengan cara selamat untuk mengelakkan kemungkinan
percikan api
– tidak boleh mempunyai komponen dan pendawaian elektrik hidup yang terdedah semasa pengecasan, pemulihan
atau pembersihan sistem;
• Baiki komponen dalam keadaan selamat
Jangan gunakan apa-apa muatan induktif atau kapasitans pada litar tanpa memastikan ini tidak melebihi voltan dan
arus yang dibenarkan untuk kegunaan peralatan.
Gantikan komponen dengan bahagian yang ditentukan oleh pengilang sahaja.
• Kaedah pengesanan kebocoran
Pastikan pengesan bukan sumber nyalaan yang berpotensi (contohnya lampu halida) dan sesuai untuk bahan penyejuk
yang digunakan. Peralatan pengesanan kebocoran perlu ditetapkan pada peratusan LFL bagi bahan penyejuk (untuk
R32, LFL sebanyak 13%) dan penggunaan bahan penyejuk perlu ditentukan serta peratusan gas yang sesuai (maksimum
25%) disahkan.
Bendalir pengesanan kebocoran sesuai digunakan dengan kebanyakan bahan penyejuk tetapi penggunaan bahan
pencuci yang mengandungi klorin perlu dielakkan kerana klorin mungkin bertindak balas dengan bahan penyejuk dan
mengakis kerja perpaipan kuprum. Jika kebocoran dikesan, semua kebakaran tanpa pelindung perlu dihapuskan/dipadam.
Jika kebocoran bahan penyejuk ditemui dan memerlukan pematerian, semua bahan penyejuk perlu dipulihkan daripada
sistem atau diasingkan (dengan menutup injap) daripada sistem jauh dari kebocoran. Nitrogen bebas oksigen (OFN)
kemudian perlu dibersihkan melalui kedua-dua sistem sebelum dan semasa proses pematerian.
17
18
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Penerima Isyarat IR
Apabila isyarat pengendalian alat kawalan jauh
inframerah telah dihantar, penerima isyarat pada unit
dalaman akan bertindak balas seperti di bawah untuk
mengesahkan penerimaan penghantaran isyarat.
OFF (MATI) kepada ON
(HIDUP) 2 bip pendek
ON (HIDUP) BERKELIP
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Lampu Penunjuk LED : Urutan Fasa Untuk Unit Penyejukan Luaran dengan 3 Fasa
Peranti perlindungan (urutan fasa) dipasang untuk mengelakkan daripada melakukan pendawaian fasa elektrik yang
tidak betul yang memerlukan bekalan kuasa tiga fasa. Apabila tiga fasa tidak disambungkan dengan betul, urutan fasa
akan dikendalikan, oleh itu unit tidak akan hidup. Peranti ini terletak di dalam kotak kawalan unit luaran.
Jadual berikut menunjukkan lampu penunjuk LED untuk urutan fasa di bawah operasi normal dan keadaan kerosakan.
Operasi normal -
JULAT PENGENDALIAN
PENDINGINAN
SUHU LUARAN
(°C DB)
46
43
19
0 14 19 23
SUHU DALAMAN
(°C WB)
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Lot 60334, Persiaran Bukit Rahman Putra 3, Taman Perindustrian Bukit Rahman Putra,
47000 Sungai Buloh, Selangor Darul Ehsan, Malaysia.