Sterling GP Series specifications Water-Cooled Portable Chillers, PWC-20

Water-Cooled Portable Chillers

Nominal operating parameters for water-cooled models are 50ºF (10ºC) leaving water temperature at 2.4 gpm per ton (9.1 lpm per 3.517 kW) with 85ºF (29ºC) tower water. For 50 Hz applications, multiply capacity by 0.83. Nominal 60 Hz capacity flow rate must be maintained.

G-PWC-20

PERFORMANCE (NOMINAL DESIGN CONDITIONS, 60 HZ)

COOLING CAPACITY	5.3	TONS	ALTITUDE	SEA LEVEL
COOLANT SUPPLY TEMPERATURE	50	°F	COMPRESSOR POWER	4251	WATTS
CONDENSER INLET WATER	85	°F	EER	14.95	BTU/WATT
TEMPERATURE
COOLANT	WATER		CONDENSER WATER FLOW	15.9	GPM
COOLANT FLOW	13	GPM	SOUND POWER LEVEL		dBA
UNIT PRESSURE DROP	7	PSID	SOUND PRESSURE LEVEL @ 1 METER		dBA
OPERATING PARAMETERS
COOLANT SUPPLY TEMPERATURE	20-80	°F	COOLANT FLOW	15	GPM
CONDENSER INLET WATER	50-90	°F	MINIMUM LOAD	1.06	TONS
TEMPERATURE
SPECIFICATIONS
COMPRESSOR	SCROLL		EVAPORATOR FILTER	20 MESH
COOLANT PUMP	STAINLESS STEEL		COOLANT CIRCUIT	NON-FERROUS
	CENTRIFUGAL
EVAPORATOR	BRAZED PLATE		CAPACITY CONTROL	HOT GAS BYPASS
CONDENSER	TUBE IN TUBE		REFRIGERANT	3 LBS R-410A
			FRAME	GALVANIZED STEEL
			PANELS	POWDER COATED STEEL
RESERVOIR	20 GALLON POLYETHYLENE		WEIGHT (OPERATING)	690	LBS
POWER	460V/3PH/60HZ		WEIGHT (SHIPPING)	520	LBS
CONTROL CIRCUIT	120	VDC	ELECTRICAL ENCLOSURE	NEMA 12
COMPRESSOR FULL LOAD AMPS	10.7	AMPS	CONTROL	MICROPROCESSOR

G-PWC-30

PERFORMANCE (NOMINAL DESIGN CONDITIONS)

COOLING CAPACITY	8.36	TONS	ALTITUDE		SEA LEVEL
COOLANT SUPPLY TEMPERATURE	50	°F	COMPRESSOR POWER	6485	WATTS
CONDENSER INLET WATER	85	°F	EER	15.47	BTU/WATT
TEMPERATURE
COOLANT	WATER		CONDENSER WATER FLOW	25.08	GPM
COOLANT FLOW	20	GPM	SOUND POWER LEVEL		dBA
UNIT PRESSURE DROP	7	PSID	SOUND PRESSURE LEVEL @ 1	dBA
			METER
		OPERATING PARAMETERS
COOLANT SUPPLY TEMPERATURE	20-80	°F	COOLANT FLOW	22.5	GPM
CONDENSER INLET WATER	50-90	°F	MINIMUM LOAD	1.672	TONS
TEMPERATURE
		SPECIFICATIONS
COMPRESSOR	SCROLL		EVAPORATOR FILTER	20 MESH
COOLANT PUMP	STAINLESS STEEL		COOLANT CIRCUIT	NON-FERROUS
	CENTRIFUGAL
EVAPORATOR	BRAZED PLATE		CAPACITY CONTROL	HOT GAS BYPASS
CONDENSER	TUBE IN TUBE		REFRIGERANT	4 LBS R-410A
			FRAME	GALVANIZED STEEL
			PANELS	POWDER COATED STEEL
RESERVOIR	20 GALLON POLYETHYLENE		WEIGHT (OPERATING)	870	LBS
POWER	460V/3PH/60HZ		WEIGHT (SHIPPING)	700	LBS
CONTROL CIRCUIT	120	VDC	ELECTRICAL ENCLOSURE	NEMA 12
COMPRESSOR FULL LOAD AMPS	16.4	AMPS	CONTROL	MICROPROCESSOR

G-PWC-40

PERFORMANCE (NOMINAL DESIGN CONDITIONS)

COOLING CAPACITY 11.31 TONS ALTITUDE

SEA LEVEL

GP Series Portable Chillers Chapter 7: Appendix 40 of 44