Mitsubishi Heavy Industries FDT Series Technical Manual page 149

(2) Twin type
Models 71, 100, 125, 140
Indoor unit
(3) Triple type
Model 140
Indoor unit Indoor unit
Gas branch pipe
(60: 12.7,71: 15.88)
Indoor unit
Flare connecting
Thermistor
(Heat exchanger)
(ThI-R3 or Th2
Thermistor
(Return air)
(ThI-A or Th1)
Heat exchanger
Thermistor
(Heat exchanger)
(ThI-R2 or Th2 )
1
Thermistor
(Heat exchanger)
(ThI-R1)
Flare connecting
(60: 6.35,71: 9.52)
Diameter joint
Liquid
of different
branch pipe
(60 only)
( 9.52)
Indoor unit
Flare
connecting
( 6.35)
Outdoor unit
Check joint
Gas line
Muffler
( 15.88)
Service valve
(Flare connecting)
High pressure
)
switch
2
Thermistor
(ThO-S)
Thermistor
(ThO-D)
Liquid line
( 9.52)
Service valve
(Flare connecting)
Gas branch
pipe
Outdoor unit
( 12.7)
Check joint
Gas line
( 15.88)
Flare connecting
Service valve
(Flare connecting)
Thermistor
(Heat exchanger)
(ThI-R3 or Th2 )
2
Thermistor
(Return air)
(ThI-A or Th1)
Heat exchanger
Thermistor
(Heat exchanger)
(ThI-R1)
Thermistor
(Heat exchanger)
(ThI-R2 or Th2 )
1
Liquid branch pipe
Service valve
( 9.52)
(Flare connecting)
Liquid line
( 9.52)
Diameter joint
of different
- 148 -
Cooling cycle
Check joint
4way valve
Heat exchanger
Check
(63H1)
valve
Lower pressure sensor
(LPT)
Muffler
Thermistor
(ThO-R1)
(Discharge)
Accumlator
Compressor
Thermistor
(Suction)
Sub-cooling
coil
Strainer Strainer Strainer
Electronic
Electronic
expansion valve
expansion valve
(heating)(EEVH)
(cooling)(EEVC)
Receiver
Cooling cycle
Muffler
4way valve
Heat exchanger
High pressure
switch
Check
(63H1)
valve
Lower pressure sensor
Muffler
Thermistor
(ThO-S)
Thermistor
(Discharge)
(ThO-D)
Compressor
(Suction)
Strainer Strainer Strainer
Electronic
expansion valve
(cooling)(EEVC)
Receiver
'12 • PAC-T-173
Heating cycle
Thermistor
(ThO-A)
(ThO-R2)
Strainer
Heating cycle
Thermistor
(ThO-A)
Check joint
(LPT)
Thermistor
(ThO-R1)
Accumlator
Thermistor
(ThO-R2)
Sub-cooling
coil
Strainer
Electronic
expansion valve
(heating)(EEVH)