18
The wiring for the power line of indoor unit, the wiring between indoor and outdoor units as well as the wiring between
indoor units:
• The electrical power line and signal lines must be fastened tightly.
• Every indoor unit must have the ground connection.
• The power line should be enlarged if it exceeds the permissible length.
• Shielded lays of all the indoor and outdoor units should be connected together, with the shielded lay at the side of signal
lines of outdoor units grounded at one point.
• It is not permissible if the whole length of signal line exceeds 1000m.
Items
Total
Current of
Indoor Units(A)
Cross
Section
(mm
2
)
Length
(m)
Rated
Current of
Overflow
Breaker(A)
Rated current of residual
Circuit Breaker(A)
Ground Fault
Interruptor(mA)
Response time(S)
Cross Sectional
Area of Signal Line
Outdoor -indoor
(mm
2
)
Indoor -indoor
(mm
2
)
<10
2
20
20
20 A,30 mA,0.1S or below
2 cores×0.75-2.0mm
2
shielded lin
≥10 and <15
3.5
25
30
30 A,30 mA,0.1S or below
≥15 and <22
5.5
30
40
40 A,30 mA,0.1S or below
≥22 and <27
10
40
50
50 A,30 mA,0.1S or below
• The shielding lay of the signal line must be grounded at one end.
• The total length of the signal line shall not be more than 600m.
Signal Wiring of Wired controller
Length of Signal Line (m)
Wiring Dimensions
<100
0.3mm
2
× core shielding lin
≥100 and <200
0.5mm
2
× core shielding lin
≥200and <300
0.75mm
2
× core shielding lin
≥300 and <400
1.25mm
2
× core shielding lin
≥400 and <600
2 mm2× core shielding lin
Electrical Wiring
Indoor Units PCB
In the following table, 1 represents ON and 0 represents OFF.
Definition principles of code switches:
SWO1 is used to set capabilities of master and slave indoor units as well as indoor unit; SW03 is used to set indoor unit
address (combine original communication address and address of centralized controller).
SW01_
1
SW01_2
SW01_3
SW01_4
Address of wire
controlled indoor unit
[1]
[2]
[3]
[4]
Address of wire controlled indoor unit (group address)
0
0
0
0
0# (wire controlled master unit) (default)
0
0
0
1
1# (wire controlled slave unit)
0
0
1
0
2# (wire controlled slave unit)
0
0
1
1
3# (wire controlled slave unit)
0
1
0
0
4# (wire controlled slave unit)
0
1
0
1
5# (wire controlled slave unit)
∙∙∙
∙∙∙
∙∙∙
∙∙∙
∙∙∙
1
1
1
1
15# (wire controlled slave unit)
SW01_5
SW01_6
SW01_7
SW01_8
Capability of indoor unit
[5]
[6]
[7]
[8]
Capability of indoor unit
0
0
0
0
0.6HP (AB05)
0
0
0
1
0.8HP (AB07)
0
0
1
0
1.0HP (AB09)
0
0
1
1
1.2HP (AB12)
Dipswitch Setting
(A) Definition and description of SW01
Summary of Contents for AB052MAERA
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