Indoor Unit Installation | 17
Step 6: Connect communication cable
The signal cable enables communication between the indoor
and outdoor units. You must first choose the right cable size
before preparing it for connection.
Cable Types
•
Indoor Power Cable (if applicable): Armoured or braided
cable
•
Outdoor Power Cable: Armoured
•
Signal Cable:
TAKE NOTE OF FUSE SPECIFICATIONS
The air conditioner’s circuit board (PCB) is designed with a fuse
to provide overcurrent protection. The specifications of the fuse
are printed on the circuit board, such as: T3.15A/250VAC,
T5A/250VAC, etc.
1. Prepare the cable for connection:
a. Using wire strippers, strip the rubber jacket from both ends
of signal cable to reveal about 15cm (6in) of the wires inside.
b. Strip the insulation from the ends of the wires.
c. Using wire crimper, crimp u-type lugs on the ends of the
wires.
PAY ATTENTION TO LIVE WIRE
While crimping wires, make sure you clearly distinguish the Live
(“L”) Wire from other wires.
2. Open front panel of the indoor unit.
3. Using a screwdriver, open the wire box cover on the right side
of the unit. This will reveal the terminal block.
WARNING
ALL WIRING MUST BE PERRFORMED STRICTLY IN
ACCORDANCE WITH THE WIRING DIAGRAM LOCATED ON
THE INSIDE OF THE INDOOR UNIT S ’WIRE COVER.
4. Unscrew the cable clamp below the terminal block and place it
to the side.
5. Facing the back of the unit, remove the plastic panel on the
bottom left-hand side.
Other Regions
Rated Current of Appliance (A)
Nominal Cross-Sectional Area (mm²)
> 10 and ≤ 16
1.5 (2,6 and 3,5 kW models)
> 16 and ≤ 25
2.5 (5,3 and 7 kW models)
CHOOSE THE RIGHT CABLE SIZE
The size of the power supply cable, communication cable, fuse,
and switch needed is determined by the maximum current of
the unit. The maximum current is indicated on the nameplate
located on the side panel of the unit. Refer to this nameplate to
choose the right cable, fuse, or switch.
Fig. 4.9
Installation Manual
6 720 869 159 (2016/12)
