Multi Variable Air Conditioners Duct Type Indoor Unit
6
Wire Type
Total Length of
Communication Line L(m) Wire Gauge (mm
2
) Wire Standard
Remark
Light/Common PVC
Jacket Soft Wire
L
≤
250
2×0.75
~
2×1.25
IEC 60227-5
1.The total length of com
-munication line should
not exceed 250m
2.The cord shall be Circu
-lar cord (the cores shall
be twisted together).
3.If unit is installed in plac
-es with intense magnetic
field or strong interferenc
-e interference, it is neces
-sary to use shielded wire.
3.3.2 Select communication line for indoor unit and outdoor unit
Outdoor
unit1
Outdoor
unit 2
Outdoor
unit 3
Outdoor
unit 4
Indoor Unit 1
Indoor Unit 2
Indoor Unit n
LO1
L=LO1+LO2+LO3+Li1+Li2+.......+Lin(n
≤
80)
LO2
LO3
Lin
Fig 3.3.2
Wire Type
Total Length of
Communication
Line L(m)
Wire Gauge (mm
2
)
Wire
Standard
Remark
Light/Common PVC
Jacket Soft Wire
L
≤
1000
≥
2×0.75
IEC 60227-5
1. If the wire diameter is enlarged
to 2 × 1 mm2, the total communic
-ation line length can reach 1500
m.
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.
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
Minimum
Sectional Area of
Power Cord
(mm
2
)
F
MV-ND224PH/A-T
220~240V-1ph-50Hz
208~230V-1ph-60Hz
10
1.0
1.0
F
MV-ND280PH/A-T
16
1.5
1.5
Notes:
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 15m long, please increase properly the sectional area of power
cord to avoid overload, which may cause accident.
③
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.
