Piping System - Mitsubishi Heavy Industries FDT71VNXVD Service Manual

4. PIPING SYSTEM

(1) Single type
Model 71
Indoor unit
Models 125,140
Indoor unit
Outdoor unit
Check joint
Gas line
( 15.88)
Service valve
Flare connecting
(Flare connecting)
Thermistor
(Heat exchanger)
High pressure
(ThI-R3)
switch
Thermistor
(Return air)
(ThI-A)
Heat exchanger
Thermistor
(Heat exchanger)
(ThI-R2)
Thermistor
(Heat exchanger)
(ThI-R1)
Flare connecting
Liquid line
( 9.52)
Service valve
(Flare connecting)
Outdoor unit
Check joint
Gas line
( 15.88)
Service valve
Flare connecting
(Flare connecting)
Thermistor
(Heat exchanger)
(ThI-R3)
Thermistor
(Return air)
(ThI-A)
Heat exchanger
Thermistor
(Heat exchanger)
(ThI-R2)
Thermistor
(Heat exchanger)
(ThI-R1)
Flare connecting
Liquid line
( 9.52)
Service valve
(Flare connecting)
– 91 –
Cooling cycle
Muffler
4way valve
Thermistor
Heat exchanger
(ThO-S)
Check
63H1
valve
Thermistor
(ThO-D)
Muffler
Accumlator
(Discharge)
Compressor
(Suction)
Solenoid valve
(SV1)
Strainer Strainer Strainer
Electronic
expansion valve
(cooling)(EEVC)
Receiver
Cooling cycle
Muffler
4way valve
Heat exchanger
High pressure
switch
Check
63H1
valve
Muffler
Thermistor
(ThO-S)
Thermistor
(Discharge)
(ThO-D)
Compressor
(Suction)
Strainer Strainer Strainer
Electronic
expansion valve
(cooling)(EEVC)
Receiver
'10 • PAC-SM-137A
Heating cycle
Thermistor
(ThO-A)
Check joint
Lower pressure
sensor
(LPT)
Thermistor
(ThO-R1)
Thermistor
(ThO-R2)
Strainer
Electronic
expansion valve
(heating)(EEVH)
Heating cycle
Thermistor
(ThO-A)
Check joint
Lower pressure
sensor
(LPT)
Thermistor
(ThO-R1)
Accumlator
Thermistor
(ThO-R2)
Sub-cooling
coil
Strainer
Electronic
expansion valve
(heating)(EEVH)