'09•SRK-DB-087D
(11) Outdoor unit inspection points
20ZJX-S, 25ZJX-S, 35ZJX-S
61.
61.
53.
CAUTION
-
HIGH VOLTAGE
High voltage is produced in the control box. Don't touch
electrical parts in the control box for 5 minutes a fter t he
unit is stopped.
◆Inspection of electronic expansion valve
See page 62.
◆Inspection of resistance valve of sensor
Remove the connector and check the resistance valve.
See the section of sensor characteristics on page 54.
◆Power source and serial signal inspection
L to N : AC 220/230/240V
1 to 2/N : AC 220/230/240V
2/N to 3 : Normal if the voltage oscillates between
DC 0 and approx. 20V
◆Inspection power transistor
Remove the fasten terminal and test
output voltage
◆Inspection of outdoor fan motor
See page 62.
Outdoor unit
◆Check point of outdoor unit
Color
Color symbol
RD
Mark
OrangeOR
Yellow/GreenY/G
BlackBK
BrownBR
YellowY
WhiteWH
Red
M
T2
T1
S
(BK)
(WH)
(RD)
V
W
U
PWB ASSY(MAIN)PWB1
M
+ +
R
TRANSISTOR
POWER
CIRCUIT
SWITCHING
250V 3.15A
F1
250V 20A
F2
F3 250V 3.15A
W
V
U
P
N
CNTH
CNEEV
t゜
3~
+
ACTIVE
FILTER
UNIT
250V 20A
F8
L
(OR)
(YE)
S-2
(BK)
(WH)
(WH)
PWB ASSY(SUB)PWB2
S-1
CNSUB
CNMAIN
250V 1A
F1
S
IN
R
IN
(BK)
(WH)
G1
(Y/G)
S0
R0
N
L
250V 20A
FUSE
2
1
N
3
(Y/G)
CN20S
C-2
(RD)
20S
(RD)
TB1
TB2
2 2
2
TH2 TH3 TH4
EEV
CM
t゜
t゜
POWER
C-1
(WH)
(WH)
M M
250V 1A
F2
CNFAN1 CNFAN2
5
5
5
5
2
2
(BK)
(BK)
(WH)
(RD)
(RD)
(WH)(WH)
CN20V
(WH)
CN20V
4
(WH)
4
2
CNFAN
CNFAN0
(WH)
(BK)
(WH)
CNA
(WH)
(Y/G)
5
G3
(Y/G)
(WH)
(WH)
(WH)
FMo1 FMo2
Power source
~220/230/240V
50Hz
Indoor
uint