Installation and Commissioning Guide - Wall Hung Split System
Doc. No.9590-5007
Ver. 2 210416
Installation and Commissioning Guide
Wall Hung Split System
32
Wired Controller
Wired controller allows the functions of scheduling on the wall hung split system via connection to multi-function board
CN42 and CN41. See wiring diagram for terminal connection locations.
Alarm Relay Output
Connection terminal CN45 on the multi-function board allows for alarm relay output, this must be 24VAC or DC and
limited to 0.5A max. CN45 Relay will close during any error operation which will cause the unit to stop or during OFF
operation. See wiring diagram for terminal connection locations.
11.01. Outdoor Unit Wiring
WARNING
Before performing any electrical or wiring work, isolate and LOCK-OUT/TAG-OUT(LOTO) power to the air conditioning
unit.
1. Prepare the cable for connection
• Ensure the correct size cable size has been selected, as per specifications.
• Using wire strippers, strip the rubber jacket from both ends of signal cable.
• Strip the insulation from the ends of the wires.
• Using a wire crimper, crimp fork-lugs on the ends of the wires.
NOTE
While connecting the wires, please strictly follow the wiring diagram (found inside the electrical box cover).
2. Remove the electric cover of the outdoor unit.
Cover
Screws
3. Connect the fork-lugs to the terminals. Match the wire colours / labels with the labels on the terminal block,
and firmly screw the lug of each wire to its corresponding terminal.
4. Clamp down the cable with designated cable clamp.
5. Reinstall the cover of the electric control box.
