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ELECTRICAL WIRING
Heat recovery system
4
1
5
2
3
1
2
3
1
ELB (Earth leakage breaker)
2
CB (Circuit breaker)
3
S (Main switch)
4
Outdoor unit
5
Operation wiring (O.U
6
Distribution box (field-supplied)
Detail for CH-Box multi connection
TB2
H-LINK
OU
1
2
PCB1
TB3
TB1
TB2
PS
OU
A
R/
S/
1 2
3
4
L1
L2
B
1
2
WC
B
A 2
1
3
IU A*
1~ 230V/50Hz
1
ELB (Earth leakage breaker)
2
CB (Circuit breaker)
3
S (Main switch)
Connect communication cable from OU to the terminal block
C
(TB2) in CH-Box
Connect communication cable from cooling only indoor unit to
D
the outdoor terminal block (TB2) in CH-Box
34
PMML0511 rev.1 - 06/2019
10
4
6
7
7
8
9
I.U )
~
G
CH-AP08MSSX
CH-AP04MSSX
PCB2
TB4
TB3
TB4
IU
IU
IU
IU
B
C
D
E
F
G
5
6
7 8 9 10
3
4
5
6
7 8 9 10
TB2
TB2
WC
B
A 2
1
IU B*
10
4
4
6
6
7
8
8
9
9
11
7
Indoor unit
8
Remote control wire (I.U)
9
Remote control (I.U)
10
CH-Box single
11
Indoor unit system number 0
12
Indoor unit system number 1
CH-AP12MSSX
PCB3
PCB4
TB3
TB4
TB3
IU
IU
IU
H
I
J
K
L
M
3
4
5
6
7 8 9 10
3
4
B
TB2
WC
WC
B
A 2
1
IU L *
1
G
CH-Box
WC
Wired controler
OU
Outdoor unit
CO IU
Cooling only indoor unit
B
Communication Cable (Non-Polarity)
IU (A-L)*
Indoor unit (A to L indicate the Indoor Unit number)*.
10
7
7
8
9
G
CH-AP16MSSX
PCB1
TB3
TB2
TB4
OU
A
IU
1 2
3
4
N
O
P
5
6
7 8 9 10
D
TB2
B
A 2
1
WC
B
A 2
IU L *
2
CO IU
8
9
12
ç
TB4
IU
IU
B
C
5
6
7 8
TB2
1
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