Installation and Commissioning Guide - Wall Hung Split System
Doc. No.9590-5007
Ver. 2 210416
Installation and Commissioning Guide
Wall Hung Split System
20
CAUTION
Before performing any electrical work, read the following regulations:
1. All wiring must comply with local and national electrical codes, and must be installed by a licensed electrician.
2. All electrical connections must be made according to the Electrical Connection Diagram located on the panels of the indoor
and outdoor units.
3. Power voltage should be within Australian Standards 230VAC (+10%, -6%) 50Hz. Insufficient power supply can cause
malfunction, electrical shock, or fire.
4. Correct sized circuit breaker must be installed.
5. Only connect the unit to an individual final sub-circuit. Do not connect another appliance to that sub-circuit.
6. Make sure to properly earth the air conditioner.
7. Every wire must be firmly connected. Loose wiring can cause the terminal to overheat, resulting in product malfunction and
possible fire.
8. Do not let wires touch or rest against refrigerant tubing, the compressor, or any moving parts within the unit.
WARNING
Always make sure that all power supply, including remote controls, are disconnected before performing maintenance. Observe
proper LOCK-OUT / TAG-OUT (LOTO) procedures to ensure that power cannot be inadvertently energised.
Step 9:
Connect interconnecting cable
The signal cable enables communication and power between the indoor and outdoor units. Choose the right cable size
before preparing for connection.
NOTE
The size of the power supply cable, signal 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 and refer to AS3000 and local wiring rules and etc.
NOTE
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:
• Using wire strippers, strip the outer insulation from both ends of signal cable to reveal about 40mm of the wires
inside.
• Strip the inner insulation from the ends of the wires.
• Using wire crimper, crimp u-type lugs on the ends of the wires.
2. Open front panel of the indoor unit by loosening the screws as shown in
Step 7
, which provides space for wiring
connection.
3. Open the wire box cover to connect the cable.
WARNING
All wiring must performed strictly in accordance with the wiring diagram located on the inside of the indoor unit’ s wire
cover.
