5
- 33
1
2
3
4
5
6
7
8
9
5. Inspection and Characteristics of Parts
2WAY VRF SYSTEM
Trouble Diagnosis
2WAY VRF SYSTEM
Trouble Diagnosis
8. Thermister Characteristics Curve
(4) Characteristics of Thermistor (Indoor Unit)
40
35
30
25
20
15
10
5
0
-4
5
14
23
32
41
50
59
68
8
7
6
5
4
3
2
1
0
68
86
104
122
140
50
131
122
113
104
95
86
77
68
59
10
9
8
7
6
5
4
3
1
2
Resistance
Resistance
Resistance
Temperature (˚F)
Temperature (˚F)
Temperature (˚F)
●
Intake temperature thermistor (TA)
●
Indoor unit heat exchanger thermistor (E1, E3)
(5) Coil Resistance of Outdoor Unit Fan Motor
unit : ohm
Model name
Resistance (at 68
°
F)
U - V
U - W
V - W
U-72ME2U9
DMSBJ75SY
2.8
2.8
2.8
U-96ME2U9
2.8
2.8
2.8
U-120ME2U9
2.8
2.8
2.8
U-144ME2U9
2.8
2.8
2.8
U-72ME2U94
DMSBG75SY
8.8
8.8
8.8
U-96ME2U94
8.8
8.8
8.8
U-120ME2U94
8.8
8.8
8.8
U-144ME2U94
8.8
8.8
8.8
(6) Coil Resistance of Compressor Motor
unit : ohm
Model name
Resistance (at 68
°
F)
1st compressor
2nd compressor
U - V
U - W
V - W
U - V
U - W
V - W
U-72ME2U9
C-9RVN393HOM
0.246
0.246
0.246
—
U-96ME2U9
C-9RVN393HON
0.167
0.167
0.167
—
U-120ME2U9
C-9RVN393HOM
0.246
0.246
0.246
0.246
0.246
0.246
U-144ME2U9
C-9RVN393HOM
0.246
0.246
0.246
0.246
0.246
0.246
U-72ME2U94
C-9RVN393HOK
1.449
1.449
1.449
—
U-96ME2U94
C-9RVN393HOL
0.629
0.629
0.629
—
U-120ME2U94
C-9RVN393HOK
1.449
1.449
1.449
1.449
1.449
1.449
U-144ME2U94
C-9RVN393HOK
1.449
1.449
1.449
1.449
1.449
1.449
SM830237-07_北米向け2WAY_VRF.indb 33
18/06/18 18:50:17
