Mars Comfort-Aire VMH Series - Refrigerant Cycle Diagrams; Refrigeration Circuit for A-VMH18 DU-1

Service Manual - VMH 18/28/36/48 Series
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3. Refrigerant Cycle Diagram
3.1 Refrigeration circuit drawing of A-VMH18DU-1
LIQUID VALVE A
GAS VALVE A
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
COOLING
HEATING
T2 Evaporator
temp. sensor
middle
T1 Room
temp. sensor
T3
Condenser
temp. sensor
T4 Ambient
temp. sensor
INDOOR OUTDOOR
EXV A
CAPILLARY TUBE
EXV B
LIQUID VALVE B
GAS VALVE B
Compressor
4-WAY VALVE
T5 Discharge
temp. sensor
Accumulator
High pressure
switch
Low pressure
switch
T2B-A Evaporator
temp. sensor outlet
T2B-B
T2B-C