Outdoor unit position
Free air discharge, distance to the boundary and to windows, no enclosed courtyard that reflects sound, access for maintenance.
Installation
Installation and service
Good installation decides consumption, noise and service life. Here is how we do it, step by step.
Installation day
A mono-split system takes about four to six hours, a multi-split system one to two days.
Marking out and protection
Positions are marked, furniture covered, drilling points prepared with dust extraction.
Core drilling
A core hole of about 65 mm with a slight fall to the outside, so condensate always drains away.
Running the pipework
Copper pipes, control cable and condensate hose run together – in trunking or chased inside, in façade trunking outside.
Setting the outdoor unit
On wall brackets, ground feet or roof supports, vibration isolated and with a free air path.
Vacuum and leak test
The circuit is evacuated and pressure tested. This step is often skipped and is the most common cause of later failures.
Commissioning
Refrigerant charge adjusted, operating values measured, report written, remote and app explained.
What has to be settled beforehand
Electrical supply
A dedicated protected circuit with RCD. Older consumer units may need extending.
Condensate route
Gravity drain to the outside or into waste water. Without a fall you need a condensate pump.
Consents
A condominium needs a resolution, and communes in protected areas may set conditions.
Pipe run
Shorter and straighter is more efficient and cheaper. Routing through a service shaft looks best.
Timing
Between October and April slots are available at short notice; in high summer far less so.
What comes with the finished system
After commissioning you receive a report with the refrigerant charge, measured pressures and temperatures, plus the manufacturer's documentation. You need these papers for any warranty claim and when selling the property.
The statutory warranty covers parts and labour; with many brands the manufacturer's guarantee depends on annual servicing by a professional. Check your model's data sheet – a service contract usually costs less than losing the guarantee.
The outdoor unit needs a good spot
Façade, terrace, flat roof or pitched roof: where the outdoor unit sits decides the noise level, the efficiency and whether the neighbours stay happy. It needs unobstructed air intake, clearance to the boundary and a drain for condensate in heating mode.
On a roof it stands on a vibration-isolated bracket that does not load the tiles. In densely built areas we check in advance which position keeps within night-time noise limits.
- Check acoustic distance to neighbouring buildings
- Bracket rather than standing directly on the roof
- Plan condensate drainage for winter operation
Book a site visit
The visit is free and without obligation – it is the basis for a fixed price you can rely on.