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Commercial Air Conditioner
Model: AU96NATAEA
AD96NAHAEA,
AP96NACAEA
68
start
display E9
if indoor and outdoor are
powered on respectively
if the live wire and
neutral wire of indoor
and outdoor are
accordant
if the wires between
indoor and outdoor
are correct
if the communication
wires between outdoor
and indoor are in open
circuit or not connected
well
re-wire
wire correctly
yes
yes
yes
yes
no
no
no
check if communication
circuit of indoor and
outdoor is damaged
yes
change
PCB
adjust live wire and
neutral wire
10.3 Typical resistance value of sensors
Indoor coil temperature sensor:
R
25
℃
=10K
Ω
+3%, B(25/50)=3741K+70K
temperature value
temperature value
temperature value
-30
℃
155.4
11
℃
18.4
52
℃
3.525
-29
℃
146.4
12
℃
17.59
53
℃
3.402
-28
℃
138.1
13
℃
16.81
54
℃
3.283
-27
℃
130.2
14
℃
16.08
55
℃
3.17
-26
℃
122.9
15
℃
15.38
56
℃
3.061
-25
℃
116
16
℃
14.71
57
℃
2.956
-24
℃
109.5
17
℃
14.08
58
℃
2.855
-23
℃
103.5
18
℃
13.48
59
℃
2.759
-22
℃
97.77
19
℃
12.91
60
℃
2.666
-21
℃
92.44
20
℃
12.36
61
℃
2.577
-20
℃
87.42
21
℃
11.84
62
℃
2.491
-19
℃
82.71
22
℃
11.35
63
℃
2.408
-18
℃
78.29
23
℃
10.88
64
℃
2.329
-17
℃
74.12
24
℃
10.43
65
℃
2.253
-16
℃
70.21
25
℃
10
66
℃
2.179
-15
℃
66.52
26
℃
9.592
67
℃
2.108
-14
℃
63.06
27
℃
9.204
68
℃
2.04
-13
℃
59.79
28
℃
8.833
69
℃
1.975