Control Wiring

Recently there are many cases of aircon wiring broken or faulty after a few years of installation.

This will lead to aircon not being able to function and owners have to replace their wiring from the blower to the compressor.

In some cases, the wiring is already hidden inside false ceiling or built in cabinets.

Imagine the trouble you need to go through just to replace the faulty wiring.

This is mostly caused by poor quality materials used during the initial installation.

Wiring is as important as the grade of copper piping used.

From the indoor units (Fancoil) to the outdoor unit (Compressor)

Min should be 3c40.

This means there are 3 cord of rubber enclosed wire, each with min 40 strands of copper wire inside.

If they use 4c40, means there is an extra cord for next time backup, in case one cord is faulty in future.

If they use 3c70, which means there are 70 strand of wire inside, this is even better but usually you have to top up a bit of $ for this upgrade as the material cost is higher.

The brand of the wire matters a lot.

Do try to avoid brands made in erm.... u all know. PR*.

Local brands like Keystone & Tai Sin are known to be reliable.

I will advise all owners to confirm the brand of the wiring used by your aircon installer before committing to the purchase.

If budget permits, do consider an upgrade to the 4 cord or 70 for long term usage.