Installation and Commissioning Guide - MultiElite 2 Split System
Doc. No. 9590-5009
Ver. 1 211221
21
Installation and Commissioning Guide
Multi Split System
11. Wiring
WARNING
• Be sure to isolate the power supply before working on the unit.
• All electrical wiring must be done according to local and national regulations.
• Electrical wiring must be done by qualified technician. Improper connections may cause electrical malfunction, injury
and fire.
• Connect the power cable to the terminals and fasten it with the clamp. Unsecured connection may cause fire. If the cord
clamp cannot fasten on a small cord, use the cord protection rubber ring to wrap around the cord. Then fix it in place
with the cord clamp.
• Make sure that all wiring is done correctly and the control board cover is properly installed. Failure to do so can cause
overheating at the connection points, fire, and electrical shock.
CAUTION
• Make sure you earth the unit. Improper earthing may cause electrical shock.
•
DO NOT
connect the unit with the power source until all wiring and piping is completed.
• Make sure that you do not cross your electrical wiring with your signal wiring, as this can cause distortion and
interference or unit malfunction.
Follow these instructions to prevent distortion when the compressor starts:
•
The unit must be connected to its individual sub-circuit. Ensure sub-circuit mains are of adequate size to ensure
minimal voltage drop at supply terminals.
•
No other equipment should be connected to the same sub-circuit as the air conditioning unit.
•
The unit’s power information can be found on the rating sticker on the product.
NOTE
The air conditioners circuit board (PCB) is designed with a fuse to provide over current protection. The specifications of
the fuse are printed on the circuit board, such as: T30A/250VAC and T3.15A/250VAC (for 7kW units), T30A/250VAC and
T5A/250VAC (for 10kW and 12kW units).
This model is charged with R-32 refrigerant, only a blast-proof ceramic fuse can be used.
Multi-Function Board
The installation of a multi-function board allows the connection of the following options:
•
Remote ON/OFF
•
Wired Controller (WC-02)
•
Alarm relay output
Remote On/off
To use, remote On/Off connect wiring and switch cross CN46 and remove jumper wire that is currently in the terminals.
Remote on/off will work by the following two options:
