Outdoor Unit Wiring; Indoor/Outdoor Unit Signal Wire Wiring; The Specification Of Power; Indoor/Outdoor Unit Signal Wire - Midea MDV-V105W/DVN1 Owner's Manual

MCAC-VTSM-2014-09

5.4.2 Indoor/Outdoor unit signal wire wiring

Note:
1) Set refrigerant piping system, signal wires between indoor-indoor unit, and that between outdoor-outdoor units into one
system.
2) Please do not put the signal wire and power wire in the same wire tube; keep distance between the two tubes. (Current
capacity of power supply: less than 10A--300mm, less than 50A--500mm.)

6. Outdoor Unit Wiring

The Specification of Po
Table 6-1
Capacity
Voltage and
Outdoor Unit power
Wiring(mm
Circuit Breaker/Fuse (A)
Indoor unit/Outdoor unit Signal wire
(Weak electric signal) (mm
CAUTION
A disconnection device having an air gap contact separation in all active conductors should be incorporated in the fixed wiring
according to the National Wiring Regulation.
Caution:
● Employ an electrical engineer for wiring.
● Complete wiring according to national electrical standards.
● To reduce interference, use a three-core shielded twisted pair as the outdoor unit signal cable. Do not use a multi-core cable.
● Incorporate the outdoor unit and indoor unit connection wiring system and refrigerant pipe system for the same system.
● The power supply, electric leakage protectors, and manual switches of the indoor units that connect to the same outdoor unit
must be universal. Use the same loop for the indoor unit power. Connect to the same outdoor unit must be universal. Use the
same loop for the indoor unit power supplies in the same system. Power on/off at the same time.
● If the power supply uses a branch loop, install an electricity leakage protector and a manual switch.
● Design a dedicated power supply for the indoor unit and outdoor unit.

Indoor/Outdoor Unit Signal Wire

Connect the wire according to their numbers.
Wrong connection may cause malfunction.
Wiring Connection
Seal the wiring connection with the insulation material, or the condensing dew will be caused.
63
wer
Phase 1 phase
208-230V~ 1Ph 60Hz
Frequency
Power
3-core X4.0
2
)
2
)
10.5kW
208-230V~ 1Ph 60Hz
30
3-core shielded wire
R410A All DC Inverter Mini VRF
12-14kW
1 phase
208-230V~ 1Ph 60Hz
3-core X4.0
40
3X0.75
16kW
1 phase
3-core X4.0
63
Installation