Daikin SkyAir RZQ200 · 250C7Y1B Service Manual page 188

SiBE26-701
Check No. 6 Check for Thermistors
Disconnect the thermistor connector from PC board, then measure the resistance by using a
tester.
Thermistor temperature and resistance measurement
Temperature
Temperature Discharge Pipe
(°C) (kΩ)
-6.0 1120.0
-4.0 1002.5
-2.0 898.6
0.0 806.5
2.0 724.8
4.0 652.2
6.0 587.6
8.0 530.1
10.0 478.8
12.0 432.9
14.0 392.0
16.0 355.3
18.0 322.4
20.0 292.9
22.0 266.3
24.0 242.5
26.0 221.0
28.0 201.6
30.0 184.1
32.0 168.3
34.0 154.0
36.0 141.0
38.0 129.3
Troubleshooting
A
°C
-6.0 90.8
-4.0 81.7
-2.0 73.5
0.0 66.3
2.0 59.8
4.0 54.1
6.0 48.9
8.0 44.3
10.0 40.2
12.0 36.5
14.0 33.2
16.0 30.2
18.0 27.5
20.0 25.1
22.0 23.0
24.0 21.0
26.0 19.2
Temperature Discharge Pipe
(°C) Sensor (kΩ)
40.0 118.7
42.0 109.0
44.0 100.2
46.0 92.2
48.0 84.9
50.0 78.3
52.0 72.2
54.0 66.7
56.0 61.6
58.0 57.0
60.0 52.8
62.0 48.9
64.0 45.3
66.0 42.0
68.0 39.0
70.0 36.3
72.0 33.7
74.0 31.4
76.0 29.2
78.0 27.2
80.0 25.4
82.0 23.7
92.0 16.9
Temperature
B
°C
88.0 28.0
79.1 30.0
71.1 32.0
64.1 34.0
57.8 36.0
52.3 38.0
47.3 40.0
42.9 42.0
38.9 44.0
35.3 46.0
32.1 48.0
29.2 50.0
26.6 52.0
24.3 54.0
22.2 56.0
20.3 58.0
18.5 Application
Temperature Discharge Pipe
(°C) Sensor (kΩ)
94.0 15.8
96.0 14.8
98.0 13.9
100.0 13.1
102.0 12.3
104.0 11.5
106.0 10.8
108.0 10.2
110.0 9.6
112.0 9.0
114.0 8.5
116.0 8.0
118.0 7.6
120.0 7.1
122.0 6.7
124.0 6.4
126.0 6.0
128.0 5.7
130.0 5.4
132.0 5.4
134.0 4.8
136.0 4.6
138.0 4.3
Diagnosis by Remote Controller
Unit : kΩ
A B
17.6 17.0
16.2 15.6
14.8 4.2
13.6 13.1
12.5 12.0
11.5 11.1
10.6 10.3
9.8 9.5
9.1 8.8
8.4 8.2
7.8 7.6
7.2 7.0
6.9 6.7
6.2 6.0
5.7 5.5
5.3 5.2
Heat Radiator fin
exchanger
(Indoor/
Outdoor
units)
Suction air
Remote
controller
Air
Outdoor air
Suction pipe
Temperature Discharge Pipe
(°C) Sensor (kΩ)
140.0 4.1
142.0 3.9
144.0 3.7
146.0 3.5
148.0 3.3
150.0 3.2
152.0 3.0
154.0 2.9
156.0 2.7
158.0 2.6
160.0 2.5
162.0 2.3
164.0 2.5
166.0 2.1
168.0 2.0
170.0 1.9
172.0 1.9
174.0 1.8
176.0 1.7
178.0 1.6
180.0 1.5
177