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VRF DC Air Handler
3.3.2 Select communication line for indoor unit and outdoor unit
communication wire
Wire type
between indoor unit and
indoor unit(outdoor unit)
(communication
line for indoor unit)
Light/Ordinary
polyvinyl chloride
sheathed cord.
(UL60335-2011)
(communication
line for outdoor
unit)
Light/Ordinary
polyvinyl chloride
sheathed cord.
(UL60335-2011)
3.4 Wiring Requirements
(1) Power Cord Size and Air Switch Capacity
Model
VEAH024C432P
VEAH030C432P
VEAH036C432P
VEAH042C432P
VEAH048C432P
VEAH054C432P
(1)
Use copper wire only as unit's power cord. Operating temperature should be within its rated value.
(2)
If the power cord is more than 15 m (49-1/4 feet) long, please increase properly the sectional area of
power cord to avoid overload, which may cause accident.
Total length of
Wire diameter
(m/feet)
L≤1000(3280)
L≤1000(3280)
Power Cord Size
208/230V-1Ph-60Hz
Fig 3.3.2
Wire standard
(AWG)
≥2×18
UL60335-2011
≥2×18
UL60335-2011
Air Switch
Minimum Sectional
apacity
Area of Ground
(A)
Wire(AWG)
15
15
15
15
15
15
7
Remark
1. If the wire diameter is
enlarged to 18AWG, the
total communication cable
length can reach 1500m
(4920 feet).
2. The cord shall be Circular
cord (the cores shall be
twisted together).
3. If unit is installed in
places with intense
magnetic field or strong
interference, it is necessary
to use shielded wire.
Minimum Sectional
Area of Power
Cord(AWG)
18
18
18
18
18
18
18
18
18
18
18
18
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