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[3] THERMISTOR TEMPERATURE CHARACTERISTICS
1. Indoor unit thermistor temperature characteristics
K
100
80
Resistance
(K )
60
40
20
0
-10
0
TH1 Room temperature thermistor
TH2 Heat exchange r thermistor
2. Outdoor unit thermistor temperature characteristics
Resistance
[4] HOW TO OPERATE THE OUTDOOR UNIT INDEPENDENTLY
1. Cooling in 40 Hz fixed mode
To operate the outdoor unit independently, short-circuit the sections indicated by arrows in the diagram below with an adapter, and apply 220-240
VAC between (1) and (N) on the terminal board of the outdoor unit. This allows the outdoor unit to be operated in cooling mode independently.
(Do not operate the outdoor unit in this condition for an extended period of time.)
TH1
TH2
CN2
4
3
2
1
-
+
-
+
Tester
Tester
Heat exchange r thermistor TH2 (orange)
4.431k
Resistance at 25
:
Room temperature thermistor TH1 (yellow)
Resistanceat25
: 10 k
10
20
30
40
Temperature(
)
Connector
CN8
1
+
-
500K
Tester
400K
(K )
300K
Resistance at 25
52.76 k
200K
5.8K
3.34K
4.17K
2.28K
100K
0
-20
0
20
60
80
100
Temperature(
)
TH1 Compressor thermistor
Thermistor
Compressor thermistor
TH1
Heat exchanger thermistor
TH2
Outdoor air temperature thermistor
TH3
Suction thermistor
TH4
2-way valve thermistor
TH5
CN2
Thermistor
Room temperature
Heat exchanger
Connector
CN8
10
1
40K
Resistance at 0
Resistance
(In case of TH2 heat exchanger thermistor)
30K
14.57 k
(K )
Resistance at 25
4.431 k
20K
TH2
10K
1.908K
0
120
-20
0
20
40
Temperature(
TH2 Heat exchanger thermistor
TH3 Outdoor air temperature thermistor
TH4 Suction thermistor
TH5 2-way valve thermistor
No.
Connector
Color
Before measuring resistance,
No. (1) - No. (2)
Red
disconnect connectors from PWB.
No. (3) - No. (4)
Orange
No. (5) - No. (6)
Green
No. (7) - No. (8)
Black
No. (9) - No. (10)
Yellow
3-5
Symbol
Color
Before measuring resistance,
disconnect connectors as shown
TH1
above.
Yellow
(CN2)
TH2
Orange
(CN2)
10
+
-
Tester
TH5
60
)
AY-ZP35PR
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