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Check
SiEN04-306D
146
Service Diagnosis
5.1.12 Main Circuit Electrolytic Capacitor Check
Check No.14
Checking the main circuit electrolytic capacitor
Never touch any live parts for at least 10 minutes after turning off the circuit breaker.
If unavoidably necessary to touch a live part, make sure there is no DC voltage using the
tester.
Check the continuity with the tester. Reverse the pins and make sure there is continuity.
5.1.13 Turning Speed Pulse Input on the Outdoor Unit PCB Check
Check No.15
<Propeller fan motor>
Make sure the voltage of 270±30V is being applied.
(1) Stop the operation first and then the power off, and disconnect the connector S70.
(2) Make sure there is about DC 270 V between pins 4 and 7.
(3) With the system and the power still off, reconnect the connector S70.
(4) Make a turn of the fan motor with a hand, and make sure the pulse (0-15 V) appears twice at
pins 1 and 4.
If the fuse is blown out, the outdoor-unit fan may also be in trouble. Check the fan too.
If the voltage in Step (2) is not applied, it means the PCB is defective. Replace the PCB.
If the pulse in Step (4) is not available, it means the Hall IC is defective. Replace the DC fan
motor.If there are both the voltage (2) and the pulse (4), replace the PCB.
∗
Propeller fan motor : S70
Keep the te
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ter in the
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i
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t
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ncer me
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ring r
a
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When the pointer
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s
,
it me
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s
the c
a
p
a
citor
f
u
nction
s
.
If the pointer doe
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not
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t
a
ll,
or ifit
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s
a
ll the w
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y
bu
t doe
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rn,
it me
a
n
s
the c
a
p
a
citor m
a
lf
u
nction.
When the pointer
s
wing
s
,
it me
a
n
s
the c
a
p
a
citor
f
u
nction
s
.
(Q0
3
67)
1
2
3
4
5
6
7
DC270V
S70
PCB
Turning speed pulse input (0-15 V)
15V
(R5321)
Содержание ARXS50C2VMB
Страница 109: ...Instruction SiEN04 306D 100 System Configuration ...
Страница 199: ...Outdoor Unit SiEN04 306D 190 Removal Procedure ...
Страница 200: ...SiEN04 306D Others 191 Part 8 Others 1 Others 192 1 1 Test Run from the remote control 192 1 2 Jumper Settings 193 ...
Страница 203: ...Others SiEN04 306D 194 Others ...
Страница 214: ...SiEN04 306D Wiring Diagrams Appendix 205 FTKD18 24 28BVMS ...
Страница 216: ...SiEN04 306D Wiring Diagrams Appendix 207 RKD18 24 28BVMS ...
Страница 217: ...Wiring Diagrams SiEN04 306D 208 Appendix ...