Century COMFORT-AIRE VMH-SG Series Service Manual page 15

Single zone mini-splits
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Service Manual - VMHxxSG
INDOOR WIRING DIAGRAM
16022000034669
T ransformer or
Power board
Y /G
RED
Y /G
B LUE(BLACK)
1
2
3
T o outdoor unit
FOR SETTING NETADDRESS (CCM Comm.Bus)
S1_1 S1_2
TYPE
ENC3+F1
9K
9K
OFF OFF
OFF
( MULTI-FUNCTION
ON
OFF
12K
CONTROL BOARD)
18K
OFF
ON
ON
ON
24K
CO DE
NETADDRESS
FACTORY SETTING
CAP
I NDOOR
FAN
M
3
5(3 or 2)
2
CN11
C N13
C N12
2
C N10
P _1
L -OUT
S 1
N-IN
L -IN(or CN 2)
C N31
YELLOW
J X1
M ULTI-FUNCTION CONTROL BOARD
I ndoor unit
C N42 CN41
O utdoor unit
X Y E 12V/5V
T o CCM Comm.Bus
T o Randomly
or
Connected
485 Wire-controller
Wire-controller
0
O N
1 2
8
0~F
0~15
30k-36k
M
M
M
2
5 (10)
5 (10)
C N27
C N19
C N21
MAIN BOARD
O N
1
2
C N32
C N18
4(8)
2
C N43
C N40
CN44
CN45
CN46
3
HA HB
T o Remote
To Remote
Alarm
Switch
0
0
O N
O N
1 2
1 2
8
8
0~F
0~F
32~47
16~31
M
5
2
PLASMA OR ION(12V)
C N22
CN26
OR UVC
C N15
Pipe Temperature Sensor
2
C N29
CN701 Switch board
C N14
Room Temperature Sensor
4
Wi-Fi Controller
5
W ire Controller
C N3
5 (3 or 4)
I nfrared Sensor
CN1
C N2
5
CN5
H umidity Sensor
C N21
C N4
Room Temperature Sensor
OPTIONAL
0
O N
NOTE: The dotted bordered
1 2
rectangle represents the
8
component is optional, the
0~F
actual shape shall prevail.
48~63

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