Service area: Chiang Mai province
Unit: Aircon piping; unit brand and BTU not visible
Type of work: Aircon installation
When: 2026

1 photos from the job

The unit when I arrived, during the work and when I finished.

After1 photo

What you can check yourself from this case

Arm explains what the photos show, so you can judge the unit at home yourself.

Trunking protects the insulation

Insulated refrigerant lines left exposed to the sun deteriorate quickly. The insulation turns brittle and cracks, causing water droplets along the pipe and cooling loss along the way. So the trunking's main job is to shield the insulation from sun and rain; the tidy look is a side benefit.

What a good pipe run looks like

Pipes should run in straight lines, bend only where necessary, and have no spots squeezed flat, because every kink is a point where refrigerant flows less easily and a likely leak point in the future.

The drain hose must slope down all the way

The drain hose relies on gravity alone. If any section rises or runs level, water pools there and flows back. You can check this by eye from outside the house, without switching the unit on.