Lennox CMC 020S Installation, Operating And Maintenance Manual page 14

1.- GENERAL CHARACTERISTICS
1.8.- PIPING DRAWINGS
CMH 020/025/030/035/040
DS
Fan
Coil
Expansion valve
CMH 045
DS
Fan
045
Pressure gauge. (5/16" to be fi tted by the installer).
Discharge sensor.
DS
Low pressure transducer, circuit 1.
LPT1
Low pressure transducer, circuit 2.
LPT2
Check valve
Expansion valve
Check valve
Expansion valve
Check valve
Scroll compressor
LP1
LPT1
C1
Filter drier
Scroll compressor
LP1
LPT1
C1
Filter drier
Scroll compressor
LPT2 LP2
C2
Filter drier
High pressure switch, circuit 1.
HP1
High pressure switch, circuit 2.
HP2
Crank case heater.
CH1
Crank case heater.
CH3
High pressure transducer, circuit 1.
HPT1
High pressure transducer, circuit 2.
HPT2
Outdoor temperature sensor.
OS
13
HEAT PUMP UNITS
4-way valve
HP1
Expansion valve
Check valve
4-way valve
HP1 PT1
HPT1
Expansion valve
Check valve
HP2 PT2
4-way valve HPT2
Expansion valve
Check valve
Fan motor
HPT1 PT1
Coil
OS
Coil
Fan motor
OS