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Version 4.2.2 gigi 3/20/2015 / All data subject to change. Compressor Selection: Open-Type Reciprocating Compressors Input Values Cooling capacity 40kW Refrigerant R717 [NH3] Reference temperature Dew point temp. Evaporating SST -8°C Condensing SDT 28°C Liquid subcooling 5K Suct. gas superheat 5K Compr. speed 1450 /min Useful superheat 100% Capacity regulation 100% Output Compressor model W4NA W4HA Cooling capacity 37.7 kW 49.7 kW Cooling capacity * 37.0 kW 48.7 kW Evaporator capacity 37.7 kW 49.7 kW Shaft power 7.88 kW 10.27 kW Condensing capacity 44.8 kW 59.0 kW COP/EER 4.79 4.84 COP/EER * 4.69 4.74 Mass flow 117.4 kg/h 154.7 kg/h Operating mode Coupling (1:1) Coupling (1:1) Compr. speed 1450 /min 1450 /min Necces. driving motor 11.00 kW 15.00 kW Discharge temp. 111.2 °C 110.1 °C Starting point for motor selection see T. Data/ Notes *according to EN12900 (5K suction gas superheat, 0K liquid sub-cooling) Application Limits

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  • Version 4.2.2

    gigi

    3/20/2015 / All data subject to change.

    Compressor Selection: Open-Type Reciprocating Compressors

    Input Values

    Cooling capacity 40kWRefrigerant R717 [NH3]Reference temperature Dew point temp.Evaporating SST -8CCondensing SDT 28CLiquid subcooling 5KSuct. gas superheat 5KCompr. speed 1450 /minUseful superheat 100%Capacity regulation 100%

    Output

    Compressor model W4NA W4HA

    Cooling capacity 37.7 kW 49.7 kWCooling capacity * 37.0 kW 48.7 kWEvaporator capacity 37.7 kW 49.7 kWShaft power 7.88 kW 10.27 kWCondensing capacity 44.8 kW 59.0 kWCOP/EER 4.79 4.84COP/EER * 4.69 4.74Mass flow 117.4 kg/h 154.7 kg/hOperating mode Coupling (1:1) Coupling (1:1)Compr. speed 1450 /min 1450 /minNecces. driving motor 11.00 kW 15.00 kWDischarge temp. 111.2 C 110.1 C

    Starting point for motor selection see T. Data/ Notes*according to EN12900 (5K suction gas superheat, 0K liquid sub-cooling)

    Application Limits