General guidance only — all construction work must be overseen by a supervising engineer This handbook is compiled from standards and laws with every source cited, andis being reviewed for certification by engineers Use it to know what to look at, what to ask and what evidence to request on site It is not an engineering determination and can't replace an engineer · Terms of use · Limitations of the handbook

Building systems

Air conditioner

Page code P32 · 49 inspection criteria · 4 illustrations

The air-con technician arrives when the house is almost finished, so people think it's a late job. But the refrigerant pipes, condensate pipes, wiring and fixing points must be in the walls before rendering. A house that wasn't prepared ends up with pipes running exposed outside the walls and cables clipped along the corners of rooms, which isn't just ugly but…

This page contains
Three moments in the air-con work — and the one people think doesn't concern them
The size of the air-con tells you how much power to provide — these figures are backed by a standard
Indoor unit position — something the homeowner can decide better than anyone
Condensate pipes — the number-one cause of water stains on the ceiling under the air-con
Outdoor unit position — four things around the unit
Wall holes and sealing — where rain gets into the house every year
Installation day and the documents you must get

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