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42
10.2 Outdoor Unit
10.2.1 CU-Z20VKR
MS
3 ~
U
V
W
P
N
Q1
M
REACTOR
W
U
V
MS
3 ~
t°
t°
t°
TO INDOOR UNIT
SINGLE PHASE
POWER SUPPLY
(WHT)
LN
1
23
GRN
GRN
BLK
BLK
YLW/GRN
WHT
WHT
RED
AC-WHT
AC-BLK
(BLK)
DATA
(RED)
GROUNDING TERMINAL
FUSE101
(20A 250V)
FG 1
(GRN)
FG 2
(GRN)
CN-MTR1
(RED)
CN-MTR2
(WHT)
FAN MOTOR
NOISE
FILTER
CIRCUIT
3
5
1
1
10
14
16
3
IC19
ELECTRONIC CONTROLLER (MAIN)
FUSE102
T3.15A L250V
FUSE103
T3.15A L250V
FUSE104
T3.15A L250V
FUSE105
(15A 250V)
PFC
CIRCUIT
RECTIFICATION
CIRCUIT
SWITCHING POWER
SUPPLY CIRCUIT
COMMUNICATION
CIRCUIT
RECTIFICATION
CIRCUIT
GRY
RAT2
(GRY)
RAT1
(GRY)
GRY
TERMINAL
BOARD
OUTDOOR AIR TEMP.
SENSOR (THERMISTOR)
1
4
CN-TH
(WHT)
PIPING TEMP. SENSOR
(THERMISTOR)
1
3
CN-TANK
(WHT)
COMP. TEMPERATURE
SENSOR (THERMISTOR)
YLW
YLW
1
3
CN-HOT
(WHT)
ELECTRO-MAGNETIC
COIL (4-WAYS VALVE)
ELECTRO-MAGNETIC
COIL
(EXPANSION VALVE)
CN-STM
(WHT)
1
6
RED
BLU
YLW
U (RED)
V (BLU)
W (YLW)
COMPRESSOR
D602
A
K
G2
C401
5V
R2
4
5
C222
G5
G5
+
5V
G8
R209
4.99k
1%
5V
G8
R
206
R
205
C205
G6
R
208
R
207
C204
G6
14V
G4A
C601
IC3
COMMON
GND
IC3
G4A
16
15
14
13
12
11
10
1
2
3
4
5
6
7
SOUND PROOF BOARD
ELECTRONIC CONTROLLER
CN-OPT
(WHT)
1
BLK
GRN
(GRN)
AC_GND
NOISE FILTER
CIRCUIT
CN-V1
(WHT)
CN-PWR
(WHT)
CN-DEMAND
(WHT)
CN-DEMAND
(WHT)
2
2
1
1
1
1
3
3
RED
BLK
WHT
WHT
WHT
YLW
ORG
RED
BRW
DRM
C
3
2
1
TERMINAL
BOARD
TO DRED
4
7
5V
R202
10k
G2
1
2
CN-S
Th
e
u
ni
t
tur
n
to
the
R
a
te
d
F
re
qu
ency
C
ool
in
g
O
pe
ra
tion
b
y
shor
t-
ci
rc
ui
ti
ng
C
N
-S
a
ft
e
r
appl
yi
ng
po
w
e
r
b
et
w
e
en
th
e
ter
m
inal
1
a
nd
2.
O
p
er
at
io
n
o
f
the
com
p
re
ssor
a
nd
th
e
o
u
td
oor
fa
n
m
o
to
r
can
be
chec
ke
d
b
y
a
ppl
yi
ng
po
w
e
r
a
ft
er
sho
rt
-ci
rc
ui
ti
ng
C
N
-S
.
G1
ZD501
R506
2k
R505
NONE
G1
ZD502
R504
2k
R503
NONE
R507
10k
D502
D503
D504
D505
G1
D506
NONE
C507
NONE
PC501
1
2
4
3
24V_1
PC502
24V_1
R508
10k
D507
NONE
C508
NONE
1
2
4
3
24V
G10_1
5V
R221
20k
R219
12k
R220
10k