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Components
Service manual
120
(C)(F)TXA15~50A(W)(S)(T) + (C)(F)TXA15~50B(B)(S)(T) + RXA42+50A +
RXA20~35A + RXA42+50B
Split Stylish R32
ESIE18-03C – 2020.02
Prerequisite:
Remove the required plate work, see
1
Locate the thermistor and remove the insulation if needed. Check that the
thermistor is correctly installed and that there is thermal contact between the
thermistor and the piping or ambient (for air thermistor).
Is the thermistor correctly installed
(thermal contact between the
thermistor and the piping)?
Action
Yes
Perform an electrical check of the
specific thermistor, see
No
Correctly install the thermistor, see
122].
To perform an electrical check of the specific thermistor
Prerequisite:
First perform a mechanical check of the thermistor, see
1
Locate the thermistor.
INFORMATION
Remove the thermistor from its holder if not reachable with a contact thermometer.
2
Measure the temperature using a contact thermometer.
Name
Symbol
Location (PCB) Connector
(pins)
Type
Air thermistor
R1T
Main (O/U)
S90:1‑2
1
Heat
exchanger
thermistor
R2T
Main (O/U)
S90:3‑4
1
Discharge pipe
thermistor
R3T
Main (O/U)
S90:5‑6
1
Heat
exchanger
thermistor
R1T
Indoor (I/U)
S501:1‑2
1
3
Determine the thermistor resistance that matches the measured
temperature.
Type 1 thermistor
T °C
kΩ
T °C
kΩ
T °C
kΩ
T °C
kΩ
–20
197.81
10
39.96
40
10.63
70
3.44
Summary of Contents for Stylish Series
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