Piping Diagrams - Carrier 38QUS012D8S Service Manual

4. Piping Diagrams

38QUS018R8S*, 38QUS024R8S*
HEAT
EXCHANGE
(EVAPORATOR)
T2 Evaporator
temp. sensor
middle
T2B Evaporator
temp. sensor
outlet
For 38QUS024R8S*, there is no accumulator.
38QUS036R8S*,
INDOOR
HEAT
EXCHANGE
(EVAPORATOR)
T1 Room temp.
T2 Evaporator
sensor
temp. sensor
middle
T2B Evaporator
temp. sensor
outlet
Outdoor Units
INDOOR
LIQUID SIDE
2-WAY VALVE
T1 Room temp.
sensor
GAS SIDE
3-WAY VALVE
38QUS036R8T*,
LIQUID SIDE
2-WAY VALVE
GAS SIDE
3-WAY VALVE
Low pressure
CAPILIARY TUBE
Accumulator
Compressor
38QUS048R8T*,
OUTDOOR
Electronic
CAPILIARY TUBE
expansion valve
T4 Ambient
temp. sensor
4-WAY VALVE
Accumulator
T5 Discharge temp. sensor
Compressor
Oil separator
switch
Oil return Capillary
OUTDOOR
Electronic
expansion valve
T3 Condenser
temp. sensor
HEAT
T4 Ambient
EXCHANGE
temp. sensor
(CONDENSER)
4-WAY VALVE
T5 Discharge
temp. sensor
COOLING
HEATING
T3 Condenser
temp. sensor
HEAT
EXCHANGE
(CONDENSER)
High pressure switch
COOLING
HEATING
Piping Diagrams
38QUS060R8T*
64