OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT
8
3.6.2 Select Communication wire for AHU-KIT and Outdoor Unit
Fig.3.6.2
Wire Type
Total Length of Communication
wire L(m)
Wire Gauge
(mm
2
)
Remark
Light/Common PVC Jacket
Soft Wire
L ≤ 1000
≥ 2×0.75
If wire gauge is 2X1 mm
2
,
then it’s OK to increase the
length of communication
wire. But total length should
not exceed 1500m.
Light shield/Common PVC
Jacket Soft Wire
L ≤ 1000
≥ 2×0.75
The shield cable is required
when the unit is installed in
the environment of strong
magnetic or interference.
3.7 Wiring Requirements
Power Cord Size and Air Switch Capacity:
Model
Power Cord Size
Air Switch
Capacity(A)
Ground Wire
Power Cord
Minimum Sectional
Area(mm
2
)
Minimum Sectional
Area(mm
2
)
GMV-N140U/A-T
220~240V/1ph/50Hz &
208~230V/1ph/60Hz
6
1.0
1.0
GMV-N280U/A-T
6
1.0
1.0
GMV-N560U/A-T
6
1.0
1.0
Notes:
①
Use copper wire only as unit’s power cord. Operating temperature should be within its
rated value.
②
Above selection requirements: Power cord size is based on BV single-core wire (2~4pc)
at 40°Cambient temperature when laying across plastic pipe. Air switch is D type and
used at 40°C. If actual installation condition varies, please lower the capacity
appropriately according to the specifications of power cord and air switch provided by
manufacturer.
③
Install cut-off device near the unit. The minimum distance between each stage of cut-off
device should be 3 mm (The same for both indoor unit and outdoor unit).
