Refrigerant Routing Diagrams - Lennox LGH180H Installation Instructions Manual

REHEAT MODE REFRIGERANT ROUTING
STAGE 2
EVAPORATOR
COIL
STAGE 1
EVAPORATOR
COIL
REHEAT
COIL
1
2
3
CHECK
VALVE
L14
REHEAT
VALVE
L30
REHEAT
VALVE
COOLING MODE REFRIGERANT ROUTING
STAGE 2
EVAPORATOR
COIL
STAGE 1
EVAPORATOR
COIL
REHEAT
COIL
1
2
3
CHECK
VALVE
L14
REHEAT
VALVE
L30
REHEAT
VALVE
156, 180H, & 210 UNITS
EXPANSION
VALVES
CHECK
VALVE
FIGURE 29
156, 180H, & 210 UNITS
EXPANSION
VALVES
CHECK
VALVE
FIGURE 30
Page 49
Note: Two refrigerant circuits are shown;
both circuits operate during reheat.
CIRCUIT 2
CONDENSER
COIL
Note: Two refrigerant circuits are shown;
both circuits operate when there is a
first-stage thermostat demand (default).
CIRCUIT 2
CONDENSER
COIL
CIRCUIT 1
CONDENSER
COIL
CIRCUIT 1
CONDENSER
COIL
507124-04 3/2016