Panasonic S-36PF1U6 - Table of Thermistor Characteristics

4-16
4. Service procedures
Check Pin
Short-circuit the cooling check pin (or heating check pin) on the outdoor unit control PCB to perform the control
described below.
1. Thermistor checks
The checks listed below are performed for 1 second each, in order from the top down. The results are displayed
by LED 1 and 2.
Discharge temp. (TD)
Outdoor air temp. (TO)
Heat exchanger temp. (C1)
Heat exchanger temp. (C2)
Intake temp. (TS)
Thermistor
Check results
Normal Abnormal
LED 1 and 2 OFF
LED 1 lit
LED 1 lit
LED 1 lit
LED 2 lit
2. 4-way valve turns ON for 1 second.
3. Forced cooling (or heating) operation
4-4. Table of Thermistor Characteristics
(1) Outdoor Air Temp. (TO), Intake Temp. (TS), Heat Exchanger Temp. (C1) Thermistor,
Heat Exchanger Temp. (C2) Thermistor
(2)Discharge Temp. (TD) Thermistor
4
Resistance (k
)
Resistance (k
)
Temperature ( F) Temperature ( F)
40
35
30
25
20
15
10
5
0
-4 5142332
32 50 68 86 104 122 140 158 176 194 212 230
41 50 59 68 68 86 104 122 140
8
7
6
5
4
3
2
1
0
Resistance (k )
Temperature ( F)
0
40
60
80
100
120
140
160
180
200
20
4
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