Lennox LCH Series

Page 37
PLUMBING, COMPRESSOR AND REFRIGERANT CIRCUITS DETAIL
Standard Efficiency / Fin Tube Coil
S7
HIGH
PRESSURE
SWITCH
S88 LOW
PRESSURE
SWITCH
S87 LOW
PRESSURE
SWITCH
DISCHARGE
LINE
PRESSURE
TAP
SUCTION
LINE
PRESSURE
TAP
S4 HIGH
PRESSURE
SWITCH
SUCTION
LINE
DISCHARGE
LINE
COMPRESSOR
2
COMPRESSOR
1
INDOOR COIL
STAGE 2
INDOOR COIL
STAGE 1
OUTDOOR COIL
STAGE 1
OUTDOOR
COIL STAGE 2
DRIERS
FIGURE 10
EXTERNAL THERMAL
PROTECTOR S-8
(SOME MODELS)
EXTERNAL THERMAL
PROTECTOR S-5
(SOME MODELS)