Lennox VRF VEAH024C432P, Installation Manual

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VRF DC Air Handler
7
3.3.2 Select communication line for indoor unit and outdoor unit
Fig 3.3.2
Wire type
Total length of
communication wire
between indoor unit and
indoor unit(outdoor unit)
(m/feet)
Wire diameter
(AWG)
Wire standard Remark
(communication
line for indoor unit)
Light/Ordinary
polyvinyl chloride
sheathed cord.
(UL60335-2011)
L≤1000(3280) ≥2×18 UL60335-2011
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.
(communication
line for outdoor
unit)
Light/Ordinary
polyvinyl chloride
sheathed cord.
(UL60335-2011)
L≤1000(3280) ≥2×18 UL60335-2011
3.4 Wiring Requirements
(1) Power Cord Size and Air Switch Capacity
Model Power Cord Size
Air Switch
apacity
(A)
Minimum Sectional
Area of Ground
Wire(AWG)
Minimum Sectional
Area of Power
Cord (AWG)
208/230V-1Ph-60Hz
VEAH024C432P 15 18 18
VEAH030C432P 15 18 18
VEAH036C432P 15 18 18
VEAH042C432P 15 18 18
VEAH048C432P 15 18 18
VEAH054C432P 15 18 18
(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.