Indoor Unit Wiring - Midea MIV V4+ Mini Service Manual

DM12-01.01.05en

7.2 Indoor Unit Wiring

Power Supply
Table 7-2
indoor Unit power
Indoor unit/Outdoor unit Signal wire (Weak electric signal) (mm
1. Signal wire is 3-core, polarized wire. Use 3-core shield wire to prevent interference. The grounding method
now is grounding the closed end of the shield wire and opening (insulating) at the end. Shield is to be
grounded.
2. The control between outdoor unit and indoor unit is BUS type. An address is set on field during the
installation.
CAUTION
The wire diameter and continuous length is under the condition that the voltage vibration is within 2%. If the continuous length is
exceed showing value, choose the wire diameter follow relevant regulation.
Indoor unit power supply wiring
CAUTION
1. Refrigerant piping system, indoor unit-indoor unit connection signal wires and indoor unit-outdoor unit connection signal wire
are in the same system.
2. When power cord is parallel with signal wire, please put them into separate wire distribution pipes, and leave a proper distance.
(Reference distance: It is 300mm when current capacity of power cord is less than 10A, or 500mm when 50A).
Please use shield wire as indoor unit/outdoor unit signal wire.
Installation
Capacity (Btu/h)
Frequency and Voltage
Power Wiring(mm
Circuit Breaker/Fuse (A)
MIV V4+ Mini DC Inverter R410A (220V, 8 kW)
Phase
2
)
2
)
Fig.7-3
36000~60000
1- phase
220-240V~ 50Hz
3-core×1.0
15/15
3-core shielded wire 3X0.5
63