Getting your single split AC installed is an exciting day — but a bit of preparation makes it go much more smoothly. Here's exactly what happens during installation, from arrival to final test.
So you've booked your single split air conditioning installation with Future Smart Electrical. Here's a complete, practical walkthrough of what happens on installation day — so you know exactly what to expect.
Before Installation Day: Preparation
A small amount of preparation makes a big difference:
Clear the area around the planned indoor unit location. Our engineers need unrestricted access to the wall and the room for the duration of the installation — ideally a clear 2-metre zone.
Identify where you want the outdoor unit positioned. The outdoor unit needs good airflow around it and shouldn't be in a location where it will blow hot air directly into a neighbour's garden or window.
Note any concerns about pipe routing. If you have specific preferences about where the refrigerant pipes are routed, let the engineers know at the start of the day.
Timing: How Long Does Installation Take?
A straightforward single-room installation typically takes 4–6 hours, including:
More complex installations — longer pipe runs, difficult access, new dedicated electrical circuit — can take a full day.
The Core Drilling: What to Expect
The core drill is a 65–80mm hole through your external wall for the refrigerant pipes. It's the noisiest and dustiest part of the process. Our engineers use dust sheets and a vacuum-equipped drill to minimise mess. The hole will be sealed with a foam bung and weatherproof mastic sealant once the pipes are through.
Refrigerant Pipe Routing and Trunking
The refrigerant pipes are wrapped in insulation and typically run along the outside of the building in white or grey PVC trunking. If you prefer the pipes routed inside (concealed within the wall or ceiling), discuss this with us before installation day.
The Pressure Test: An Important Safety Step
Before any refrigerant is introduced, our F-Gas certified engineers pressure-test the refrigerant circuit with nitrogen. This verifies that there are no leaks in the pipe joints. The circuit is held under pressure for a set period and monitored — if pressure holds, we proceed.
Commissioning and Your First Run
Once everything is installed and tested, we commission the system. This involves checking refrigerant charge, measuring system pressures, confirming correct operation in both heating and cooling modes, and running through the controller and app setup with you.
After Installation
Following installation, you'll receive:
Book annual servicing 12 months after installation to maintain your warranty and keep the system running efficiently.
Future Smart Electrical installs single split AC systems across Essex. We are F-Gas certified, fully insured, and committed to a clean, professional finish on every installation.