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FIGURE 29
REHEAT MODE REFRIGERANT ROUTING
156, 180H, & 210 UNITS
REHEAT
COIL
CIRCUIT 1
CONDENSER
COIL
CIRCUIT 2
CONDENSER
COIL
STAGE 2
EVAPORATOR
COIL
STAGE 1
EVAPORATOR
COIL
1
2
EXPANSION
VALVES
CHECK
VALVE
L14
REHEAT
VALVE
L30
REHEAT
VALVE
3
CHECK
VALVE
Note: Two refrigerant circuits are shown;
both circuits operate during reheat.
FIGURE 30
COOLING MODE REFRIGERANT ROUTING
156, 180H, & 210 UNITS
REHEAT
COIL
CIRCUIT 1
CONDENSER
COIL
CIRCUIT 2
CONDENSER
COIL
STAGE 2
EVAPORATOR
COIL
STAGE 1
EVAPORATOR
COIL
1
2
EXPANSION
VALVES
CHECK
VALVE
L14
REHEAT
VALVE
L30
REHEAT
VALVE
3
CHECK
VALVE
Note: Two refrigerant circuits are shown;
both circuits operate when there is a
first-stage thermostat demand (default).
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