Mitsubishi Heavy Industries FDT100VNAWVH Service Manual page 201

(3) Triple type
Model 140
Indoor unit Indoor unit
Preset point of the protective devices
Parts name
Temperature sensor
(for protection over-
loading in heating)
Temperature sensor
(for frost prevention)
Temperature sensor
(for protection high
pressure in cooling.)
Temperature sensor
(for detecting dis-
charge pipe temp.)
High pressure switch
(for protection)
Low pressure sensor
(for protection)
Note (1) Values in ( ) are for the SRK models.
Indoor unit
Flare connecting
Temperature sensor
(Heat exchanger)
(Thi-R3 or Th2
Temperature sensor
(Return air)
(Thi-A or Th1)
Heat exchanger
Temperature sensor
(Heat exchanger)
(Thi-R1)
Temperature sensor
(Heat exchanger)
(Thi-R2 or Th2
Flare connecting
ø
( 6.35)
Equipped
Mark
unit
Th i -R
(Tho-A)
Indoor unit
Th i -R
(Th2)
Tho-R Outdoor unit
Tho-D Outdoor unit
63H1 Outdoor unit
PSL Outdoor unit
- 200 -
Gas branch
pipe
ø
( 12.7)
Check joint
Gas line
Muffler
ø
( 15.88)
Service valve
(Flare connecting)
)
High pressure
2
switch
63H1
Muffler
)
1
Liquid branch pipe
Check joint
ø
( 9.52)
Service valve
Liquid line
(Flare connecting)
ø
Strainer
( 9.52)
Diameter joint
of different
100, 125, 140 model
（
OFF 63˚C
ON 56˚C
（
OFF 1.0˚C
ON 10˚C
OFF 51˚C
ON 65˚C
OFF 115˚C
ON 85˚C
OFF 4.15MPa
ON 3.15MPa
OFF 0.227MPa
ON 0.079MPa
'19 • PAC-SM-309
Cooling cycle Heating cycle
4-way valve
Temperature sensor
(Tho-A)
Heat exchanger
Check valve
Temperature sensor
(Tho-S)
Lower pressure sensor
Temperature sensor
(PSL)
(Tho-D)
Temperature sensor
(Tho-R1)
(Discharge)
Accumulator
Compressor
Temperature sensor
(Tho-R2)
(Suction)
Sub-cooling
coil
Check joint
Strainer Strainer Strainer
Electronic
Electronic
expansion valve
expansion valve
(heating)(EEVH)
(cooling)(EEVC)
Control
cooling
Receiver
）
OFF 16˚C
ON 17˚C
）
OFF 2.5˚C
ON 8˚C
#