BITZER Output data

Created on : 3/5/2015 07:02:55 ‫م‬

BITZER Software v6.4.3 rev1302 3/5/2015 / All data subject to change. 2 / 10

Table of content

Project survey............................................................................................................................................................ 3
Compressor Selection: Semi-hermetic Screw Compressors HS............................................................................... 4
Technical Data: HSN8571-125.................................................................................................................................. 5
Semi-hermetic Screw Compressors HS.................................................................................................................... 6
Oil cooler, air cooled.................................................................................................................................................. 7
Oil separator.............................................................................................................................................................. 8
Technical Data: OA4188............................................................................................................................................ 9
Oil separator............................................................................................................................................................ 10
BITZER Software v6.4.3 rev1302 3/5/2015 / All data subject to change. 3 / 10

Project survey
Selected compressors
Semi-hermetic Screw Compressors HS 1x HSN8571-125

Chosen accessory
Oil cooler, air cooled
Oil separator 1x OA4188
BITZER Software v6.4.3 rev1302 3/5/2015 / All data subject to change. 4 / 10

Compressor Selection: Semi-hermetic Screw Compressors HS

Input Values
Compressor model HSN8571-125
Refrigerant R404A
Reference temperature Dew point temp.
Evaporating SST -28.00 °C
Condensing SDT 25.0 °C
Liq. subc. (in condenser) 0K
Auto. subcooling Auto
Suct. gas superheat 10.00 K
Operating mode Economizer
Power supply 400V-3-50Hz
Useful superheat 100%
Additional cooling Automatic
Max. discharge gas temp. 80.0 °C
Result
Compressor HSN8571- 125-40P
Capacity steps 100%
Cooling capacity 169.3 kW
Cooling capacity * 173.8 kW
Evaporator capacity 169.3 kW
Power input 72.3 kW
Current (400V) 125.4 A
Voltage range 380-415V
Condenser Capacity 238 kW
COP/EER 2.34
COP/EER * 2.38
Mass flow LP 4044 kg/h
Mass flow HP 4861 kg/h
Operating mode Economizer
Liquid temp. (sc) 5.63 °C
Mass flow ECO 817 kg/h
sub cooler load 31.1 kW
sat. ECO Temp. -4.37 °C
ECO pressure 5.25 bar(a)
Oil volume flow 1.96 m³/h
Cooling method --
Discharge gas temp. w/o cooling 56.8 °C

Tentative Data.
*According to EN12900 (10K suction gas superheat, liquid subcooling in Economiser with 5K temperature difference)

Application Limits ECO

Legend
BITZER Software v6.4.3 rev1302 3/5/2015 / All data subject to change. 5 / 10

Technical Data: HSN8571- 125

Dimensions and Connections

Technical Data
Technical Data
Displacement (2900 RPM 50 Hz) 410 m3/h
Displacement (3500 RPM 60 Hz) 495 m3/h
Weight 600 kg
Max. pressure (LP/HP) 19 / 28 bar
Connection suction line DN 100
Connection discharge line 76 mm - 3 1/8''
Adapter/shut-off valve for ECO 28 mm - 1 1/8'' (Option)
Oil type R22 B150SH, B100 (Option)
Oil type R134a/R404A/R507A BSE170 (Option)
Motor data
Motor voltage (more on request) 380-415V PW-3-50Hz
Max operating current 216.0 A
Starting current (Rotor locked) 612.0 A D / 943.0 A DD
Max. Power input 132.0 kW
Extent of delivery (Standard)
Discharge gas temperature sensor Standard
Start unloading Standard
Oil flow control SE-B2 (Standard)
Motor protection SE-E1 + 2xSE-B2 (Standard), INT69VSY-II(Standard for
660-690V)
Capacity control 100-75-50% or 100-50% (Standard)
Enclosure class IP54
Available Options
Suction shut-off valve Option
Discharge shut-off valve Option
ECO connection with shut-off valve Option
Motor protection SE-C2 + 1xSE-B2 (Option)
Sound measurement
BITZER Software v6.4.3 rev1302 3/5/2015 / All data subject to change. 6 / 10

Semi-hermetic Screw Compressors HS

HSK = Application for air-conditioning and medium temperature cooling
HSN = Application for low temperature cooling

Notes regarding application limits (see Limits):

- Ranges are valid for standard operation and at full-load conditions.
- With high pressure conditions, part-load operation is partly limited
(see application limits in applications manual SH-100)
- With Economizer operation the maximum admissible evaporation temperature
is shifted by 10 K downward (otherwise there is a danger of excessive
compression and overload of the motor because of a higher mass flow).
At pull-down conditions from higher evaporation temperatures, the ECO injection
must remain closed until the evaporation temperature is below the maximum
admissible value and a stable operation is achieved (e.g. control of the ECO
solenoid valve by means of a low pressure cut-out). The use of the ECO-system
with higher evaporation temperatures requires individual consultation with Bitzer.

HS 64/74:
- Capacity control with ECO operation at the same time is limited to one single
regulating step (CR 75 %). At CR 50 % the ECO injection should be closed.
- Combined operation (ECO + CR 50 %) is possible under certain conditions,
control and system design, however, require individual consultation with Bitzer.

Data for sound emission:

Data are based on 50Hz application (IP-units 60Hz) and R404A.
Sound pressure level: values are based on open air test sites with semi-spherical sound emissions at 1 meter distance.
For further information see Technical Information "Sound Data".

Legend of connection positions according to "Dimensions":

1 High pressure connection (HP)

2 Low pressure connection (LP)
3 Discharge gas temperature sensor
4 Economiser / liquid injection
5 Oil injection
6 Oil pressure connection
7 Oil drain plug (motor housing)
8 Threaded hole for foot fixation
9 Threaded hole for pipe support (ECO and LI line)
BITZER Software v6.4.3 rev1302 3/5/2015 / All data subject to change. 7 / 10

Oil cooler, air cooled

Input Values
Common Yes
Ambient temp. 32°C
Operating point Auto

Operating Points
A
to [°C] -28
tc [°C] 25

Result

With these values no oil cooler required [156]

BITZER Software v6.4.3 rev1302 3/5/2015 / All data subject to change. 8 / 10

Oil separator
Input Values
Common Yes
Operating point Auto

Operating Points
A
to [°C] -28
tc [°C] 25

Result
Compressor: (all)
Recommendation: OA4188
Selection OA4188
Recommended operating point: A
Selected operating point: A
Number 1
Max. HP mass flow 7995 kg/h
Mass flow load 60.80 %
Max. oil volume flow 6.75 m³/h
Oil volume flow load 29.00 %
#1: Selection for direct expansion systems. Flooded systems require individual selection.
BITZER Software v6.4.3 rev1302 3/5/2015 / All data subject to change. 9 / 10

Technical Data: OA4188

Dimensions and Connections

Technical Data
Technical Data
Weight 95 kg
Total width 465 mm
Total depth 550 mm
Total height 1060 mm
Oil charge 40 l
Receiver volume refrigerant 88 l
Max. no. of compressor 5
Refrigerant inlet 76 mm - 3 1/8''
Refrigerant outlet 76 mm - 3 1/8''
Oil outlet 35 mm - 1 3/8''
Max. pressure 28 bar
Max. Operating Temperature 120°C
Crankcase heater 2x100 W
Oil level switch Standard
Connection for pressure relief valve 1 1/4'' - 12 UNF
*According PED 97/23/EC Standard
BITZER Software v6.4.3 rev1302 3/5/2015 / All data subject to change. 10 / 10

Oil separator
Connection positions

1 Refrigerant inlet
2 Refrigerant outlet
3 Oil outlet
4 Oil fill connection
5 Service connection
6 Oil thermostat connection
7 Oil heater connection
8 Oil level switch connection
9 Connection for pressure relief valve
10 Oil outlet (secondary stage)
11 Service flange for filter cartridges (filter of the secondary stage)
12 Oil drain

Dimensions can show tolerances

according to EN ISO 13920-B.