Mitsubishi SRR60ZJ-S, Руководство по обслуживанию

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59
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'10 • SCM-SM-094
'09•SRK-DB-087D
(10)
How to make sure of wireless remote controller
(C) Power transistor inspection procedure
[Use a tester with a needle indicator for the inspection. (Do not use a digital teste
r. Check in the
AC 300 volt range.)
]
(1)
If
there
is
a
self-diagnosis
display
, inspect
the
compressor
system
(burns,
wiring
mistakes,
etc.)
If
no
problems
are
found
, check
the
output of the power transistor
.
(2)
Output inspection procedure
Disconnect the terminals for the compresseor
.
If
an
output
such
as
the
one
shown
in
the
figure
on
the
below
can
be
measured,
the
power
transistor
and
the
circuit
board
for
the
outdoor unit are normal.
(Example) RUN light : ON TIMER light: 2 time flash
Measure in this section
Operation SW
ON
8~10 sec.
1 sec.
1 sec.
3 min.
3 min.
1 sec.
0
Output voltage
(ACV)
The figare below shows the SRK series
.
(11) Outdoor unit inspection points Models SCM40ZJ-S,45ZJ-S
CAUTION- HIGH VOLTAGE
High voltage is produced in the control box. Don't touch
electrical parts in the control box for 5 minutes after the
unit is stopped.
◆ Inspection power transistor
Remove the fasten terminal and test
output voltage
◆ Inspection of outdoor
fan motor
See page 62.
◆
Inspection of resistance value of sensor
Remove the connector and check the resistance value.
See the section of sensor characteristics on page 52.
◆ Power source and serial
signal inspection
① to ② : AC 220/230/240V
② to ③ : Normal if the voltage
oscillates between DC 0
and approx. 20V
Color Marks
Mark Color
BK
BR
Black
Brown
RD
Y ／ G
Red
Yellow ／ Green
WH White
OR Orange
EEV
S
BK
WH
RD
V
W
U
FM0
CM
R
CNTH
CNFAN
S-2
BK
WH
WH
S-1
CNSUB CNMAIN
S
IN
R
IN
BK
WH
S
O
R
O
250V 15A
FUSE
CN20S G2
Y ／ G
C-2
RD
C-1
CN20V CN20V
5
2
G1
Y
／
G
G
Y ／ G
CNEEV1 CNTH
TB2
CNA
CNB
TB1
N
L
A
EEV
B
Y
／
G
WH
BK
UNIT A
UNIT B
M
3
～
M
M M
Power supply
1 Phase
220-240V 50Hz
WH RD
PWB 2 （ SUB ）
PWB 1
（
MAIN
）
20S
HEATER
WH RD
CNHEAT
T2
T1
R
OR
YE
3
2
1 BK
WH
RD
3
2
1 BK
WH
BR
TB3
2 2 2
t
゜
t
゜
t
゜
t
゜
2
TH4 TH1 TH2 TH3
YE Yellow
◆ Inspection of electronic
expansion valve
See page 62.