AirStage AO54FJ, Service Manual

Page: 153 / 169

Thermistor resistance values <Outdoor unit side>
1) Outdoor heat exchanger outlet and middle thermistor (TH
HO,
TH
HMO
) and suction temperature thermistor(TH
S
)
Pipe tempera-
ture ( C)
Resistance value
(k )
-50
384.8
-40
182.8
-30
92.3
-20
49.2
-10
27.5
-7.5
24.0
-5.0
20.9
-2.5
18.3
0
16.1
2.5
14.1
5.0
12.4
7.5
11.0
10
9.7
Pipe tempera-
ture ( C)
Resistance value
(k )
12.5
8.6
15.0
7.7
17.5
6.8
20
6.1
22.5
5.5
25.0
4.9
27.5
4.4
30
3.9
32.5
3.6
35
3.2
37.5
2.9
40
2.6
50
1.8
Pipe tempera-
ture ( C)
Resistance value
(k )
60
1.2
70
0.9
80
0.6
90
0.5
100
0.4
2) Discharge temperature thermistor (TH
D
)
Pipe tempera-
ture ( C)
Resistance value
(k )
-40
2183
-30
1076
-20
561
-10
307
0
176
5.0
135
10
105
12.5
92.4
15
81.8
17.5
72.6
20
64.5
22.5
57.5
25
51.3
Pipe tempera-
ture ( C)
Resistance value
(k )
27.5
45.8
30
41.1
32.5
36.9
35
33.1
37.5
29.8
40
26.9
50
18.1
60
12.5
70
8.8
80
6.3
90
4.6
100
3.4
120
2.0
Pipe tempera-
ture ( C)
Resistance value
(k )
140
1.2
160
0.8
180
0.5
3) Outdoor temperature thermistor (THo)
Pipe tempera-
ture ( C)
Resistance value
(k )
-50
859
-40
402
-30
200
-20
105
-10
58.2
-7.5
50.6
-5.0
44.0
-2.5
38.4
0
33.6
2.5
29.5
5.0
25.9
8.0
22.3
10
20.2
Pipe tempera-
ture ( C)
Resistance value
(k )
12.5
17.9
15
15.8
17.5
14.1
20
12.5
22.5
11.2
25
10.0
27.5
9.0
30
8.0
32.5
7.2
35
6.5
37.5
5.9
40
5.3
50
3.6
Pipe tempera-
ture ( C)
Resistance value
(k )
60
2.5
70
1.8
80
1.3
09-04