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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
5
14 23 32
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
SM830203-04.indb 16
15/10/15 11:04:53
Summary of Contents for : S-26PU1U6
Page 8: ...vii MEMO ...
Page 77: ...1 69 1 Specifications 1 4 Dimensional Data Outdoor Unit U 42PE1U6 U 42PS1U6 1 ...
Page 218: ...2 12 MEMO ...
Page 219: ...3 1 3 2 Indoor Units 3 2 Outdoor Units 3 14 3 ELECTRICAL DATA 3 1 3 ...
Page 220: ...3 2 3 Electrical data 3 1 Indoor Units Concealed Duct Type S 26PF2U6 S 36PF2U6 3 ...
Page 221: ...3 3 3 Electrical data 4 Way Cassette Type S 26PU1U6 S 36PU1U6 S 42PU1U6 3 ...
Page 222: ...3 4 3 Electrical data 4 Way Cassette Type S 26PU1U6 S 36PU1U6 S 42PU1U6 3 ...
Page 223: ...3 5 3 Electrical data Wall Mounted Type S 26PK1U6 3 ...
Page 224: ...3 6 3 Electrical data Wall Mounted Type S 26PK1U6 3 ...
Page 225: ...3 7 3 Electrical data Ceiling Type S 26PT1U6 S 36PT1U6 S 42PT1U6 3 ...
Page 226: ...3 8 3 Electrical data Ceiling Type S 26PT1U6 S 36PT1U6 S 42PT1U6 3 ...
Page 227: ...3 9 3 Electrical data Low Silhouette Ducted Type S 26PF1U6 S 36PF1U6 3 ...
Page 228: ...3 10 3 Electrical data Low Silhouette Ducted Type S 26PF1U6 S 36PF1U6 3 ...
Page 230: ...3 12 3 Electrical data Wall Mounted Type S 26PK2U6 3 ...
Page 232: ...3 14 3 Electrical data 3 2 Outdoor Units U 26PE1U6 3 ...
Page 233: ...3 15 3 Electrical data U 26PE1U6 3 ...
Page 234: ...3 16 3 Electrical data U 26PS1U6 3 ...
Page 235: ...3 17 3 Electrical data U 26PS1U6 3 ...
Page 236: ...3 18 3 Electrical data U 36PE1U6 3 ...
Page 237: ...3 19 3 Electrical data U 36PE1U6 3 ...
Page 238: ...3 20 3 Electrical data U 36PS1U6 3 ...
Page 239: ...3 21 3 Electrical data U 36PS1U6 3 ...
Page 240: ...3 22 3 Electrical data U 42PE1U6 3 ...
Page 241: ...3 23 3 Electrical data U 42PE1U6 3 ...
Page 242: ...3 24 3 Electrical data U 42PS1U6 3 ...
Page 243: ...3 25 3 Electrical data U 42PS1U6 3 ...
Page 244: ... MEMO 3 26 ...
Page 284: ...5 24 MEMO ...
Page 297: ...201510 ...