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SERVICING
(2.5 2-Way Cassette Type)
2.5.9 Removing Thermistors for Liquid and Gas Pipes
(1) Remove the optional air panel according to the item 2.5.3 "Removing Optional Air Panel".
(2) Remove the bell-mouth according to the item 2.5.4 "Removing Fan Runner and Fan Motor".
(3) Remove the drain pan according to the item 2.5.8 "Removing Drain Pan".
(4) Remove the insulation for the pipe, remove the thermistor holder from the gas piping and remove the
thermistor for the gas pipe.
(5) Remove the butyl sheet, remove the thermistor holder from the liquid piping and remove the
thermistor for the liquid pipe.
Liquid Side
Gas Side
Thermistor Holder
2-74
TURN OFF all power source switches.
Holder
Tool
Phillips Screwdriver
Holder
Insulation
Butyl Sheet
Thermistor for Liquid Pipe
Thermistor for
Gas Pipe
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Troubleshooting
