Split-System Air Conditioning Installation in Melbourne

Room sizing and split system configurations

A split system is sized in kilowatts. A small bedroom may need a much smaller unit than an open living and kitchen area, and rooms with large windows or poor insulation need more capacity than their floor area suggests. We size each unit for the room it will serve.

If you want to cool and heat several rooms, you can have a separate split system in each, or a multi-split with several indoor units on one outdoor unit. We'll explain the trade-offs in cost, outdoor space and control.

Indoor and outdoor placement, pipe runs and access

The indoor unit works best high on a wall where it can throw air across the room, away from direct sun and clear of curtains. The outdoor unit needs space around it for airflow, a solid base or bracket, and a spot that won't disturb bedrooms or neighbours.

The shortest practical route between the two keeps the installation neat and efficient. Where the pipe run has to go through a roof or along an outside wall, we'll show you the route before we start.

Standard versus more complex installations

A back-to-back installation, where the indoor unit sits on an outside wall with the outdoor unit directly behind it, is usually the simplest. Installations get more involved when the units are far apart, when the outdoor unit goes on a roof or upper-floor bracket, or when pipework has to run through a roof space or under the floor.

Your quote says which kind of installation you're getting and what it involves, so there are no surprises on the day.

Replacing an existing split system

When you replace an old split system, we recover the refrigerant from the old unit before it comes off the wall. We then check whether the existing pipework, cabling and brackets suit the new unit, and replace them if they don't.

A new indoor unit may be a different size from the old one, so there may be marks or holes on the wall to patch. We'll point this out before we start.

Commissioning and handover

Once the units are connected we pressure test and evacuate the pipework, release the refrigerant and run the system in cooling and heating. We check the air temperature from the indoor unit, the drain and the controls.

Then we show you how to use the remote, set a timer and clean the filters. For servicing later on, see air conditioning service and maintenance. If something goes wrong, see air conditioning repairs.