Carrier 38MGRBQ18B-3 - Page 16

38MGRBQ: Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
16
REFRIGERATION CYCLE DIAGRAMS (CONT)
Fig. 16 — Sizes 30K (30R) and 36K (36R)
Fig. 17 — Size 48K (48R)
LIQUID VALVE A
GAS VALVE A
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
Compressor
4-WAY VALVE
COOLING
HEATING
T2 Evaporator
temp. sensor
middle
T1 Room
temp. sensor
T3
Condenser
temp. sensor
T5 Discharge
temp. sensor
T4 Ambient
temp. sensor
ROODTUOROODNI
EXV A
CAPILIARY A
CHECK VALVE
CAPILIARY TUBE
EXV B
CAPILIARY B
LIQUID VALVE B
GAS VALVE B
EXV C
CAPILIARY C
LIQUID VALVE C
GAS VALVE C
EXV D
CAPILIARY D
LIQUID VALVE D
GAS VALVE D
Accumulator
High pressure
switch
Low pressure
switch
T2B-A Evaporator
temp. sensor outlet
T2B-B
T2B-C
T2B-D
LIQUID VALVE A
GAS VALVE A
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
COOLING
HEATING
T2 Evaporator
temp. sensor
T1 Room
temp. sensor
T3
Condenser
temp. sensor
T4 Ambient
temp. sensor
ROODTUOROODNI
EXV A
CAPILIARY A
CHECK VALVE
CAPILIARY TUBE
EXV B
CAPILIARY B
LIQUID VALVE B
GAS VALVE B
EXV C
CAPILIARY C
LIQUID VALVE C
GAS VALVE C
EXV D
CAPILIARY D
LIQUID VALVE D
GAS VALVE D
EXV E
CAPILIARY E
LIQUID VALVE E
GAS VALVE E
Compressor
4-WAY VALVE
T5 Discharge
temp. sensor
Accumulator
High pressure
switch
Low pressure
switch