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Bitzer Selection Software

The document provides specifications for two models of 2-stage semi-hermetic reciprocating compressors, S4G-12.2Y-40P and S6J-16.2Y-40P, operating with R404A refrigerant. It details input values such as cooling capacity, evaporating and condensing temperatures, and power supply, along with results including cooling capacities, power inputs, and mass flow rates. Both models have a COP/EER of 1.46, with varying cooling capacities and operational parameters.

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GersonRafael
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23 views1 page

Bitzer Selection Software

The document provides specifications for two models of 2-stage semi-hermetic reciprocating compressors, S4G-12.2Y-40P and S6J-16.2Y-40P, operating with R404A refrigerant. It details input values such as cooling capacity, evaporating and condensing temperatures, and power supply, along with results including cooling capacities, power inputs, and mass flow rates. Both models have a COP/EER of 1.46, with varying cooling capacities and operational parameters.

Uploaded by

GersonRafael
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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BITZER Software v7.0.4 rev13 Friday 23. May 2025 1:09:24 PM / All data subject to change.

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Selection: 2-stage Semi-hermetic Reciprocating Compressors


Input Values
Cooling capacity 15,00 kW
Refrigerant R404A
Reference temperature Dew point temp.
Evaporating SST -35,00 °C
Condensing SDT 40,0 °C
Operating mode with sub cooler
Suction gas temperature 20,00 °C
Useful superheat 100%
Power supply 400V-3-50Hz

Result
Compressor S4G-12.2Y-40P S6J-16.2Y-40P
Capacity steps 100% 100%
Cooling capacity 13,68 kW 19,33 kW
Cooling capacity * 9,61 kW 14,38 kW
Evaporator capacity 13,68 kW 19,33 kW
Power input 9,37 kW 13,21 kW
Current (400V) 16,50 A 22,0 A
Voltage range 380-420V 380-420V
Condenser capacity 23,1 kW 32,5 kW
COP/EER 1,46 1,46
COP/EER * 1,02 1,09
Mass flow LP 260 kg/h 389 kg/h
Mass flow HP 397 kg/h 551 kg/h
Intermed. pressure 4,69 bar(a) 5,70 bar(a)
Mean temperature -7,72 °C -1,84 °C
Liquid temp. 2,14 °C 9,67 °C

*According to EN12900 (20°C suction gas temp., 0K liquid subcooling)

Application Limits S4G-12.2, S6J-16.2

Legend

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