Mitsubishi Heavy Industries SRRM40HENG-L, Handbook, Page: 608 / 1106

606
FDU-H
Thermistor
(Th
I
-A)
Heat exchanger
Liquid line
(ø9.52)
Strainer Strainer
Compressor
Accumlator
Strainer Strainer
Thermistor
(Th
I
-R)
Service valve
(Flare connecting)
Capillary tube
Capillary tube
High Pressure
regulator valve
Defrost
Thermostat
Check joint
Heat
exchanger
4way valve
High pressure switch
(For fan motor control)
Service valve
(Flare connecting)
Check joint
Check joint
Gas line
(ø19.05)
(23DH)
Cooling cycle
Heating cycle
Indoor unit
Outdoor unit
Models FDU408HES-A, 508HES-A, 508HEM-A
Preset point of the protective devices
Parts name Mark
Thermistor
(for protection over-
loading in heating)
Thermistor
(for frost prevention)
Thermistor
(for detecting dis-
charge pipe temp.)
Thermistor
(for detecting heat
exchange temp.)
High pressure switch
(for controlling FM
0
)
High pressure switch
(for protection)
OFF 68˚C
ON 61˚C
Equipped
unit
Th
I-
R
Tho-D
Tho-R
63H
2
63H
1
Indoor unit
Outdoor unit
Outdoor unit
Outdoor unit
Outdoor unit
FDU308~508 (FDC308~508 type)
OFF 2.5˚C
ON 10˚C
OFF 135˚C
ON 90˚C
OFF 70˚C
ON 60˚C
OFF 2.5MPa (25.5 kgf/cm
2
)
ON 2.06MPa (21 kgf/cm
2
)
Parts name Mark
Thermistor
(for protection over-
loading in heating)
Thermistor
(for frost prevention)
Defrost thermostat
High pressure switch
(for controlling FMo)
OFF 68˚C
ON 61˚C
Equipped
unit
TH
I-
R
23DH
2
23DH
1
63H
2
Indoor unit
Outdoor unit
Outdoor unit
FDU308~508 (FDC306~506 type)
OFF 2.5˚C
ON 10˚C
OFF 12˚C
ON
-6˚C
FDU808, 1008
OFF 2.75MPa (28 kgf/cm
2
)
ON 2.16MPa (22 kgf/cm
2
)
OFF 2.4MPa (24.5 kgf/cm 2 )
ON 1.86MPa (19.0 kgf/cm 2 )
OFF 2.5MPa (25.5 Kgf/cm
2
)
ON 1.86MPa (19 kgf/cm
2
)