Indoor unit power supply and the signal wire wiring
220-240V~ 50Hz
Outdoor Power
Supply
Indoor Power
Supply
(2-cord screened wire)
Creepage Protection
Switch
Creepage Protection
Switch
Ground Wire
380V ~
Outdoor Unit
Ground Wire
Connect to close end
of the screened wire
Indoor Unit
Indoor Unit
Wire Distribution Box
Wiring connection hole
Use the insulation materials (on field) to seal the wiring hole of the unit, or insufficient sealing
will cause condensate dew.
Panel wiring
Install the panel with vane
Connect the swing motor terminal block according to the panel installation manual.
7
Wiring specifications are listed below, insufficient capacity would over-heat the wire or destroy
the machine.
Model
Items
Power Cord of the Indoor Unit
Control Wire
Diameter
Ground
Wire
Single-
Wire
Power
Capacity Fuse Below 20m
Twisted-pair
2-core screened wire
Twisted-pair
Below 50m Quantity
Power Switch
Power Cord
Indoor/Outdoor Unit
Signal Wire
Single Phase
220-240V~
50Hz
2
2mm
2
6mm
Not longer than 1500m
2
2mm
2
f
1.5 mm
15A
MDV-D28~71Q
4
/N
2
15A
WIRING SPECIFICATIONS
The indoor unit power source should not be shared with outdoor unit.
The indoor units that connect to the same outdoor unit should use the same power source, creepage
protector and main switch.
The indoor power wire should be connected to the L
N terminal , and the indoor/outdoor signal
wire should adopt the 2-core screened wire . The indoor /outdoor signal wire should be connected
to A B terminal and should be corresponding with the A
B of the outdoor terminal. Connect the
screened layer to (E).
Indoor/Outdoor
Signal wire
Summary of Contents for MDV-D28Q1/BN2
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