Multi Variable Air Conditioners Duct Type Indoor Unit
18
19
1) Strip about 10mm insulation of the end of stranded wire by stripping and cutting tool.
2) Loosen the wiring screws on terminal board.
3) Insert the wire into the ring tongue terminal and tighten by crimping tool.
4) Use the screwdriver for tightening the terminal.
single branch wire
insulation layer
insulation layer
multiple twisted wires
wiring terminal
Fig 5.1.1 Fig 5.1.2
5.2 Power Cord Connection
Note:
Power supply of each indoor unit must be from the same source.
power supply
Outdoor uni
Indoor
unit 1
Indoor
unit 2
Indoor
unit n
connection
wire (match
with resistance
Wired Controller Wired Controller
Wired Controlle
Wiring board of power XT1
Wiring board of
communication XT2
Wiring board of power XT1
Wiring board of
communication XT2
Wiring board of power XT1
Wiring board of
communication XT2
Fig 5.2
Remark: The maximum number of indoor units that can be connected depends on the capacity
of outdoor unit. For specific details, please refer to the capacity configuration part.
(1) For air conditioner that uses single-phase power
1) Remove the cover of electric box of indoor unit.
2) Lead the power cord across the rubber ring.
3) Connect the power cord to the L, N terminals and the grounding screw.
4) Fasten the power cord with a wire clamp.
(2) For air conditioner that uses 3-phase power
1) Lead the wire across the rubber ring.
2) Connect the power cord to terminals that marked with L1, L2, L3, N and to the grounding screw.
3) Fasten the wire with a wire clamp.
5.3 Connection of Communication Line of IDU and ODU
(1) Detach the electric box lid.
(2) Let the Communication cable pass through the wiring through-holes.
(3) Connect the communication wire to terminal D1 and D2 of indoor 4-bit wiring board, as shown
in fig5.3.1.
