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Check
SiAF332111E
342
Part 6 Service Diagnosis
RXMQ8AR
Perform the following procedures prior to check.
(1) Power OFF.
(2) Remove all the wiring connected to the PCB where power transistors are mounted on.
Point of Measurement and Judgment Criteria
Turn OFF the power supply. Then, after a lapse of 10 minutes or more, make measurement of
resistance.
When using the analog type of multimeter,
make measurement in resistance measurement mode in the x1 k
range.
When using the digital type of multimeter, make measurement in diode check mode.
Preparation
Multimeter
Prepare the analog type of multimeter.
For the digital type of multimeter, those with
diode check function are available for the
checking.
No.
Measuring point
Judgment
Criteria
Remarks
+
–
1
P2
U
2 ~ 15 k
―
2
P2
V
3
P2
W
4
U
P2
15 k
and
more
(including ∞ )
Due to
condenser
charge and so
on, resistance
measurement
may require
some time.
5
V
P2
6
W
P2
7
N32
U
8
N32
V
9
N32
W
10
U
N32
2 ~ 15 k
―
11
V
N32
12
W
N32
No.
Measuring point
Judgment
Criteria
Remarks
+
–
1
P2
U
1.2 V and more
Due to
condenser
charge and so
on, resistance
measurement
may require
some time.
2
P2
V
3
P2
W
4
U
P2
0.3 ~ 0.7 V
―
5
V
P2
6
W
P2
7
N32
U
8
N32
V
9
N32
W
10
U
N32
1.2 V and more
Due to
condenser
charge and so
on, resistance
measurement
may require
some time.
11
V
N32
12
W
N32
Содержание VRV S RXQ4/5ARV1
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Страница 349: ...SiAF332111E Check Part 6 Service Diagnosis 343 PCB and Circuit Diagram U V W L3B L2B L1B P1 P2 N32...
Страница 366: ...SiAF332111E 360 Part 7 Appendix 1 Wiring Diagrams 361 1 1 Outdoor Unit 361 1 2 VRV Indoor Unit 366 Part 7 Appendix...
Страница 369: ...SiAF332111E Wiring Diagrams Part 7 Appendix 363 RXMQ6ARV1 C 3D137051...
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