Removing Thermistors For Freeze Protection, Gas Pipe, Outlet Air And Inlet Air - Hitachi RCI-1.0FSN3 Service Manual

10 Servicing

10.9.11 Removing Thermistors for Freeze Protection, Gas Pipe, Outlet Air and Inlet Air

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For RPK-(0.8-1.5)FSN(H)3M
1 Remove the front panel according to the "Removing Front Panel" chapter.
2 Remove the electrical box according to the "Removing Electrical Box" chapter.
3 Remove the plastic band (A) clamping each thermistor.
4 Removing Freeze Protection Thermistor
a. The freeze protection thermistor is fixed by thermistor pipe with a thermo clip. Remove the thermistor from the
thermo clip.
b. When attaching the freeze protection thermistor, attach it in the reverse procedure. Insert the thermistor into the
thermistor pipe and fix it with the thermo clip.
c. After attaching the thermistor, clamp the wirings for the expansion valve, freeze protection thermistor, gas pipe
thermistor and inlet air thermistor with one (1) plastic band.
5 Removing Gas Pipe Thermistor
a. The gas pipe thermistor is fixed by the thermistor holder. Remove the thermistor holder from the thermistor. Then,
the gas pipe thermistor can be removed.
b. When attaching the gas pipe thermistor, attach it in the reverse procedure. Get the thermistor firmly attached to the
inside of the piping with the thermistor holder.
c. After attaching the thermistor, clamp the wirings for the expansion valve, freeze protection thermistor, gas pipe
thermistor and inlet air thermistor with one (1) plastic band.
6 Removing Inlet Air Thermistor
a. The inlet air thermistor is clamped with 1 plastic band (B) to the resin component for fixing the thermistor inserted
into the heat exchanger fins. Remove the plastic band to remove the thermistor.
b. When attaching the inlet air thermistor, attach it to the resin component with the plastic band in the reverse procedure.
Take care during the work so that the wiring for the thermistor will not come into contact with metal edges of fins or
side plates of the heat exchanger.
c. After attaching the thermistor, clamp the wiring for the expansion valve, freeze protection thermistor, gas pipe
thermistor and inlet air thermistor with 1 plastic band.
380
SMGB0077 rev.0 - 01/2013
Gas Pipe Thermistor
(Left Side of Gas Pipe)
Freeze Protection Thermistor
Plastic Band (A)
Termistor Pipe
Freeze Protection
Thermistor
Termo Clip