Sterlco GC Series Central Chiller - Manual (Page 60)

GC Series Central Chillers Chapter 7: Appendix 60 of 79
Water-Cooled Central 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.
20 TON (GCWC-70)
PERFORMANCE (NOMINAL DESIGN CONDITIONS)
COOLING CAPACITY 22.68 TONS ALTITUDE SEA LEVEL
COOLANT SUPPLY
TEMPERATURE
50 °F COMPRESSOR POWER 16970 WATTS
CONDENSER INLET WATER
TEMP
85 °F EER 16.04 BTU/WATT
COOLANT WATER CONDENSER WATER FLOW 68 GPM
COOLANT FLOW 54 GPM SOUND POWER LEVEL 74 dBA
UNIT PRESSURE DROP 7 PSID
SOUND PRESS LEVEL @ 1
METER
dBA
OPERATING PARAMETERS
COOLANT SUPPLY
TEMPERATURE
20-80 °F COOLANT FLOW 24-96 GPM
CONDENSER INLET WATER
TEMP
50-90 °F MINIMUM LOAD 4.54 TONS
SPECIFICATIONS
COMPRESSOR SCROLL FRAME GALVANIZED STEEL
EVAPORATOR BRAZED PLATE COOLANT CIRCUIT NON-FERROUS
CONDENSER
SHELL &
TUBE
REFRIGERANT 22 LBS R-410A
EVAPORATOR FILTER 20 MESH WEIGHT (OPERATING) 1660.95 LBS
POWER 460V/3PH/60HZ WEIGHT (SHIPPING) 940.95 LBS
CONTROL CIRCUIT 24/120 VAC ELECTRICAL ENCLOSURE NEMA 4/12
COMPRESSOR RATED LOAD
AMPS
(2) @ 17.9 AMPS EACH CONTROL MICROPROCESSOR