Mitsubishi Heavy Industries SRK25GZ-L1 Handbook page 392

FDT ( N ) -C
Models FDT308CEN-A, 308CES-A, 408CES-A, 508CES-A
Indoor unit
Model FDTNP508CES-S
Indoor unit
Strainer
Preset point of the protective devices
Parts name Mark
Thermistor
Th
(for frost prevention)
Thermistor
(for detecting dis- Tho-D
charge pipe temp.)
Thermistor
(for detecting heat Tho-R
exchanger temp.)
High pressure switch
63H
(for protection)
390
308: ø15.88
( )
408, 508: ø19.05
(ø9.52)
Check joint
Gas line
Service valve
( ø19.05)
(Flare connecing)
Thermistor
Thermistor
(Tho-D)
(Th -A)
I
Heat
exchanger
Capillary
Thermistor
tube
(Th -R)
I
Liquid line
(ø9.52)
Service valve
(Flare connecting)
Equipped
FDT208, 258
unit
R Indoor unit
I-
OFF 135˚C
Outdoor unit
OFF 70˚C
Outdoor unit
Outdoor unit
I
High pressure switch (63H1)
Oil separator
Caillary
Heat
tube
exchanger
Thermistor
(Tho-R)
Accumulator
Compressor
Solenoid valve
SV
Check joint
Capillary tube
FDT308~508 type
OFF 2.5˚C
ON 10˚C
–
ON 90˚C
–
ON 60˚C
–
Outdoor unit
Outdoor unit
Thermistor
(Tho-A)
FDTNP208~508 type
OFF 135˚C
ON 90˚C
OFF 70˚C
ON 60˚C
OFF 3.24MPa (33 Kgf/cm
ON 2.65MPa (27 kgf/cm
2 )
2
)