ELECTRIC INSTALLATION
1. Dismantle the maintenance plate on the right side of the unit.
2. Loosen the screws of the wire clamper, then take down the clamper.
3. Connect power cables and signal cables to the connector as wiring diagram on the unit.
4. Re-install the dismantled parts to their original state.
Explanation of the DIP jumps on the outdoor mainboard
Setting items
ON
No.
1
2
Use function setting
Communication mode
DIP1 DIP2
OFF
ON
OFF
Wave communication
Level communication
ON
1
2
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Consequence
Cooling only type
Heat pump type
Note: Renew the power supply to the unit when the jump setting is finished.
Connecting and layout of the power supply cable
Related parameters are as following:
Note:
The numbers in the above table are based on independent power supply of indoor and outdoor unit.
The provided cable sizes in the above table can apply to 24 or 220VAC outdoor unit control mode.
The wiring should be handled by certified electrician, and should be in conformance with regula-
tions of the local power supply department and electrical appliances standards.
Both the indoor unit and outdoor unit should be properly connected to earth.
Environment conditions should be taken into account (ambient temperature, direct sunshine).
The wire dimensions are minimum values for metal-core wires. Consider the voltage loss, and
use power supply core of a higher grade.
If power supply lines are damaged, contact our appointed maintenance department for replace-
ment by special cord.
24000(single phase)
24000(three phases)
36000(single phase)
36000(three phases)
Indoor Unit
Power Cable
(Btu/h)
Nominal Cooling
Capacity
3G1.0
3G1.0
3G1.0
3G1.0
3G1.0
3G2.5
5G2.5
3G4.0
3G2.5
18000(single phase)
2
Unit: mm
5G2.5
42000(single phase)
Outdoor Unit
Power Cable
Indoor and Outdoor Connecting
Cable (220V outdoor unit control)
Heat
Pump
Heat Pump
(sensor con-
necting cable)
Cooling Only
Heat Pump
3G4.0
4
1.0
4
1.0
4
1.0
4
1.0
4
1.0
5
2.5
2
0.5
25
For 24V outdoor unit control mode,
only ON position can be selected.
Remarks
42000(three phases)
48000(single phase)
3G1.0
3G1.0
3G1.0
5G2.5
3G6.0
48000(three phases)
5G2.5
4
1.0
4
1.0
4
1.0
Indoor and Outdoor Connecting
Cable (24V outdoor unit control)
Cooling
Only
2
0.75
2
0.75
2
0.75
2
0.75
2
0.75
3
2.5
2
0.75
2
0.75
2
0.75
2
0.75
2
0.75
2
0.75
2
0.75
2
0.75
2
0.75
2
0.75
2
0.75
2
0.75
4
1.0
4
1.0
4
1.0
4
1.0
4
1.0
4
1.0
4
1.0
4
1.0
4
1.0
