Refrigeration Pipe Work; Mpc Single-Zone Refrigerant Cycle Diagram; Mpc Two-Zone Refrigerant Cycle Diagram - Lennox MMA018SM4 Service Manual

8. Refrigeration Pipe Work

8.1. MPC Single-Zone Refrigerant Cycle Diagram

Indoor Coil
T2 Evaporator
temp. sensor

8.2. MPC Two-Zone Refrigerant Cycle Diagram

Indoor Coil
T2 Evaporator
temp. sensor
middle
N I D O O R
T1 Room temp.
sensor
INDOOR
LIQUID VALVE A
LIQUID VALVE B
T1 Room
temp. sensor
GAS VALVE A
GAS VALVE B
Electronic
CAPILIARY TUBE
expansion valve
LIQUID SIDE
2-WAY VALVE
GAS SIDE
3-WAY VALVE Accumulator
Compressor
EXV A CAPILIARY A
EXV B CAPILIARY B
T2B-A
Evaporator
temp. sensor outlet
T2B-B
Accumulator
Compressor
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O U T D O O R
CAPILIARY TUBE
T3 Condenser
temp. sensor
Outdoor Coil
T4 Ambient
temp. sensor
4-WAY VALVE
T5 Discharge
temp. sensor
COOLING
HEATING
OUTDOOR
CHECK VALVE
T3
Condenser
temp. sensor
CAPILIARY TUBE
T4 Ambient
temp. sensor
4-WAY VALVE
T5 Discharge
temp. sensor
COOLING
HEATING
Outdoor Coil