Mitsubishi Heavy Industries V Multi FDC71VNX Technical Manual page 33

1.6 PIPING SYSTEM
(1) Single type
(1) Single type
Models 40, 50, 60
Models FDT40, 50, 60
Indoor unit
(2) Twin type (2) Twin type
Models FDT71, 100, 125, 140
Models 71, 100, 125
Models FDTC71, 100, 125
Indoor unit
Indoor unit
(3) Triple type
Model FDTC140
Outdoor unit
Service valve
(Flare connecting)
Gas line
(φ12.7)
Flare connecting
Check joint
Temperature sensor
(Heat exchanger)
Muffler
(Thi-R3)
Temperature sensor
4-way valve
(Return air)
(Thi-A)
Heat exchanger
Temperature sensor
(Heat exchanger)
(Thi-R1)
Temperature sensor
(Heat exchanger)
(Thi-R2)
Service valve
Flare connecting
(Flare connecting)
Liquid line
Strainer
Gas branch pipe
Outdoor unit
(40-60:
Check joint
Indoor unit
Gas line
(φ15.88)
Service valve
Flare connecting
(Flare connecting)
Thermistor
Flare connecting
(Heat exchanger)
High pressure
(Thi-R3)
Temperature sensor switch
Thermistor
(Heat exchanger)
(Return air)
(Thi-R3)
(Thi-A)
Temperature sensor
(Return air)
Heat exchanger
(Thi-A)
Thermistor
Heat exchanger
(Heat exchanger)
(Thi-R1)
Temperature sensor
(Heat exchanger)
Thermistor
(Thi-R1)
(Heat exchanger)
Temperature sensor
(Thi-R2)
(Heat exchanger)
(Thi-R2)
Check joint
Flare connecting
Flare connecting
(40-60:
φ6.35)
Liquid line
Service valve
(φ9.52)
(Flare connecting)
Diameter joint
Liquid
of different
branch pipe
(40-60 only)
(φ9.52)
Cooling cycle
Discharge pipe
temp. sensor
(TH3)
Muffler
Compressor
Receiver
Electronic
expansion valve
Capillary tube
Cooling cycle
φ12.7)
4-way valve
Outdoor unit
Strainer
Check joint
Gas line
Muffler
(φ15.88)
Service valve
(Flare connecting)
Check
valve
Thermistor
63H1 High pressure
(Tho-S)
Muffler
switch
Thermistor
(63H1)
(Tho-D)
Temperature sensor
(Tho-S)
(Discharge)
Temperature sensor
(Tho-D)
Compressor
(Suction)
Liquid line
(φ9.52)
Strainer Strainer
Service valve
(Flare connecting)
Strainer
Electronic
expansion valve
(cooling)(EEVC)
32
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Gas branch
pipe
'19 • PAC-T-327
Heating cycle
Outdoor air
temperature sensor
(TH2)
Accumulator
Heat
exchanger
Heat
exchanger
sensor
(TH1)
Capillary tube
(EEV)
Muffler
Heating cycle
Thermistor
Cooling cycle
(ThO-A)
Temperature sensor
Check joint
Heat exchanger
Check joint
4-way valve
Heat exchanger
Lower pressure sensor
Check
(LPT) valve
Lower pressure sensor
Thermistor
(LPT)
Muffler
(Tho-R1)
Temperature sensor
(Tho-R1)
Accumulator
(Discharge)
Accumulator
Thermistor
Compressor
(Tho-R2)
Temperature sensor
Sub-cooling
(Tho-R2)
(Suction)
coil
Sub-cooling
coil
Strainer Strainer
Strainer Strainer
Electronic
expansion valve
Electronic
Electronic
(heating)(EEVH)
expansion valve
expansion valve
(heating)(EEVH)
(cooling)(EEVC)
Receiver
Receiver
Heating cycle
(Tho-A)
Strainer