Specifications

36
5
HOW TO CHECK THE PARTS
Parts name Check points
Disconnect the connector then measure the resistance using a tester.
(Surrounding temperature 10:~30:)
Drain sensor
(Refer to below for a detail.)
(Refer to below for a detail.)
Room temperature
thermistor (TH1)
Pipe temperature
thermistor/ liguid (TH2)
Condenser/evaporator
temperature thermistor
(TH5)
1
2
3
Normal
4.3k"~9.6k"
Abnormal
Open or short
Abnormal
Open or short
Normal
0.6k"~6.0k"
Measure the resistance between the terminals using a tester.
Measure the resistance after 3 minutes have passed since the power supply was intercepted.
(Surrounding temperature 0:~60:)
5-1. INDOOR UNIT
• Common parts
0
10
20
30
40
50
-20 -10 0 10 20 30 40 50
< Thermistor for lower temperature >
Temperature (:)
Resistance (k")
<Thermistor Characteristic graph>
Room temperature thermistor(TH1)
Pipe temperature thermistor(TH2)
Condenser/evaporator temperature
thermistor(TH5)
Thermistor R0=15kΩ ±3%
Fixed number of B=3480 ± 2%
Rt=15exp { 3480( ) }
0: 15kΩ
10: 9.6kΩ
20: 6.3kΩ
25: 5.2kΩ
30: 4.3kΩ
40: 3.0kΩ
Thermistor R0=6.0kΩ ±5%
Fixed number of B=3390 ±2%
Rt=6exp { 3390( ) }
0: 6.0kΩ
10: 3.9kΩ
20: 2.6kΩ
25: 2.2kΩ
30: 1.8kΩ
40: 1.3kΩ
60: 0.6kΩ
Thermistor for
lower temperature
1
273+t
1
273
1
273+t
1
273
-20 0 20406080
< Thermistor for drain sensor >
Temperature (:)
0
1
2
3
4
5
6
7
8
9
10
Resistance (k")
Drain sensor
OCT04B-2.qxp 05.11.29 11:27 AM Page 36