How long does a commercial AC installation take?

A single-cassette office typically takes 1–2 days. A full VRV/VRF system across a 4-storey building runs 2–4 weeks, including commissioning and BMS integration.

Do I really need premium brands like Daikin?

For commercial use, yes. Premium systems routinely last 12–16 years; budget systems often fail at 5–7. The 20% upfront premium becomes a 40% total-cost saving over the system's life.

What is a heat-load calculation?

A room-by-room BTU/kW requirement derived from glazing area, occupancy, equipment heat gain and orientation. Undersized systems short-cycle and fail early; oversized systems waste energy and struggle with humidity.

Commercial AC installation guides

From site survey to commissioning — the six-stage process AccuTemp follows on every project.

Key facts

Commercial installations follow a 6-stage process from survey to commissioning.
Premium brands last 12–16 years vs 5–7 for budget kit.
A ducted office fit-out averages 2–4 weeks.

Commercial AC installation is a six-stage process: site survey, heat-load calculation, system architecture, indoor unit selection, F-Gas/TM44/Part L compliance, and commissioning. Brand and refrigerant choice materially affects the 16-year lifetime cost. These guides explain the decisions to make at each stage and why premium systems (Daikin, Mitsubishi Electric) outlast generic kit by 6–9 years.

Guides in installation

Common questions about installation

How long does a commercial AC installation take?: A single-cassette office typically takes 1–2 days. A full VRV/VRF system across a 4-storey building runs 2–4 weeks, including commissioning and BMS integration.
Do I really need premium brands like Daikin?: For commercial use, yes. Premium systems routinely last 12–16 years; budget systems often fail at 5–7. The 20% upfront premium becomes a 40% total-cost saving over the system's life.
What is a heat-load calculation?: A room-by-room BTU/kW requirement derived from glazing area, occupancy, equipment heat gain and orientation. Undersized systems short-cycle and fail early; oversized systems waste energy and struggle with humidity.