Piping System - Mitsubishi Heavy Industries FDT Series Technical Manual

1.7 PIPING SYSTEM

(1) Single type
Models 40, 50, 60
Indoor unit
Models 71, 100, 125, 140
Indoor unit
Outdoor unit
Service valve
(Flare connecting)
Gas line
( 12.7)
Flare connecting
Check joint
Thermistor
(Heat exchanger)
Muffler
(ThI-R3)
Thermistor
4way valve
(Return temp.)
(ThI-A)
Heat exchanger
Thermistor
(Heat exchanger)
(ThI-R2)
Thermistor
(Heat exchanger)
(ThI-R1)
Service valve
Flare connecting
(Flare connecting)
Liquid line
Strainer
( - 6 .35)
Outdoor unit
Check joint
Gas line
( 15.88)
Service valve
Flare connecting
(Flare connecting)
Thermistor
(Heat exchanger)
High pressure
(ThI-R3)
switch
Thermistor
(Return temp.)
(ThI-A)
Heat exchanger
Thermistor
(Heat exchanger)
(ThI-R1)
Thermistor
(Heat exchanger)
(ThI-R2)
Check joint
Flare connecting
Liquid line
Service valve
( 9.52)
(Flare connecting)
Cooling cycle
Discharge pipe
temp. sensor
(TH3)
Muffler
Compressor
Receiver
Capillary tube
Cooling cycle
4way valve
Strainer
Check
valve
Thermistor
63H1
(ThO-S)
Muffler
Thermistor
(ThO-D)
(Discharge)
Compressor
(Suction)
Strainer Strainer
Electronic
expansion valve
(cooling)(EEVC)
- 147 -
'12 • PAC-T-173
Heating cycle
Outdoor air
temp. sensor
(TH2)
Accumlator
Heat
exchanger
Heat
exchanger
sensor
(TH1)
Capillary tube
Electronic
expansion valve
(EEV)
Strainer
Heating cycle
Thermistor
(ThO-A)
Check joint
Heat exchanger
Lower pressure sensor
(LPT)
Thermistor
(ThO-R1)
Accumlator
Thermistor
(ThO-R2)
Sub-cooling
coil
Strainer
Strainer
Electronic
expansion valve
(heating)(EEVH)
Receiver