SpacePak ESP-J - Page 24

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W1C
TT
BOILER/PUMP
CONTROL
ESP 120V/230V
TWO STAGE
REFRIGERANT CONDENSER
WITH HW COIL/BOILER OR
ELECTRIC BACKUP HEAT
TT
C
BOILER/PUMP
CONTROL
W1
LAT
COIL2
COIL1
TEMPERATURE
FIGURE 2.37: TWO STAGE HEAT PUMP/AC WITH BACKUP BOILER HEAT WIRING DIAGRAM