Lennox LGH180H Installation Instructions Manual page 50

1
L14
REHEAT
VALVE
1
L14
REHEAT
VALVE
LGH/LCH156, 180, 210, 240, 300S
REHEAT MODE REFRIGERANT ROUTING
240 AND 300S UNITS
STAGE 2
EVAPORATOR
COIL
STAGE 1
EVAPORATOR
COIL
REHEAT
COIL
2
3
4
CHECK
VALVE
L30
REHEAT
CHECK
VALVE
VALVE
COOLING MODE REFRIGERANT ROUTING
STAGE 2
EVAPORATOR
COIL
STAGE 1
EVAPORATOR
COIL
REHEAT
COIL
2
3
4
CHECK
VALVE
L30
CHECK
REHEAT
VALVE
VALVE
Note: Two refrigerant circuits are shown;
both circuits operate during reheat.
EXPANSION
VALVES
FIGURE 31
240 AND 300S UNITS
Note: Two refrigerant circuits are shown;
both circuits operate when there is a
first-stage thermostat demand (default).
EXPANSION
VALVES
FIGURE 32
Page 50
CIRCUIT 2
CONDENSER
COIL
CIRCUIT 1
CONDENSER
COIL
CIRCUIT 2
CONDENSER
COIL
CIRCUIT 1
CONDENSER
COIL