Lennox LGH180H - REFRIGERANT CIRCUITS AND COOLING COMPONENTS

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156H, 180H, 210H PLUMBING, COMPRESSOR
AND REFRIGERANT CIRCUITS DETAIL
STAGE 1
CONDENSER COIL
STAGE 2
CONDENSER
COIL
STAGE 1
EVAPORATOR COIL
STAGE 2
EVAPORATOR
COIL
(B2)
STG 1
(B13)
STG 2
(B1)
STG 1
SUCTION
LINE
(S87)
HIGH
PRESSURE
SWITCH (S4)
DISCHARGE
LINE
PRESSURE
TAP
(S7)
(S28)
(S88)
DRIERS (3)
(S98)
COMPRESSOR (B1) STG 1
LOW PRESSURE
SWITCH (S87)
180H SHOWN
156 VAV, 180 VAV ONLY
EVAPORATOR COIL
(not to scale)
STAGE 1
CIRCUIT 1
STAGE 3
CIRCUIT 1, 2, & 3
STAGE 2
CIRCUIT 1 & 2
INTERTWINED
FIGURE 7