11-8.
Outdoor Unit
Red
White
Black
Red
White
Black
No.
1
2
3
5
Part name
Compressor
(Model : DA270A2T-20LD)
Outdoor fan motor
(Model : WDF-340-A100
-1
)
Compressor thermo. Bimetal type
(Model : CS-12AL)
Outdoor temperature sensor (TO),
pipe temperature sensor
(TGa, TGb, TGc, TGd, TGe),
discharge temperature sensor (TD),
suction temperature sensor (TS),
evaporator temperature sensor
(TE),
Checking procedure
Measure the resistance value of each winding by using the tester.
Under 20°C
Measure the resistance value of winding by using the tester.
For details, refer to Section 11-10.
Check conduction by using the tester.
Disconnect the connector, and measure resistance value with the tester.
(Normal temperature)
Position
Red - White
White - Black
Black - Red
Resistance value
0.49 ± 0.03
Ω
Position
Red - White
White - Black
Black - Red
Resistance value
1
7
.3
±
1
.7
Ω
Temperature
Sensor
TD (k
Ω
)
TO, TE, TS (k
Ω
)
TGa to TGe (k
Ω
)
10°C
20°C
25°C
40°C
50°C
105
64
51
27
18
20.6
12.6
10.0
5.1
3.4
20.0
12.5
10.0
5.3
3.6
4
High pressure switch
(Model : ACB-4
U
B83W)
Check conduction by using the tester.
100
30
40
50
60
70
80
90
20
10
0
0
10
20
30
40
50
Resistance value (k
Ω
)
Temperature (˚C)
: Discharge temp. sensor
TD
TO
TE
TS
: Outdoor temp. sensor
: Outdoor heat exchanger temp.
sensor
:
Suction temp. sensor
TGa to TGe : Gas side temp. sensor
TO, TE, TS, TGa to TGe
TD
[1] Sensor characteristic table
11-7. Inspection of the Main Parts
FILE NO. SVM-15036
- 91 -
Summary of Contents for RAS-5M34S3AV-A
Page 112: ......
