Commercial split systems up to 18 kW: a guide for business owners
By True Line Air Conditioning · 5 min read
When a shop’s cooling dies on a 38° afternoon, the cost isn’t the repair — it’s the customers who walked straight back out. For most retail, office, gym and childcare spaces in southeast Melbourne, high-capacity single split systems are the workhorse solution: effective, serviceable and far simpler than ducted plant. Here’s what business owners should know.
What split systems suit commercial spaces
We install single split systems up to 18 kW — wall-mounted or under-ceiling units that can handle a serious retail floor, an open office, a gym room or a childcare sleep room. Larger footprints are handled with multiple systems working in zones, which has a real operational advantage: one unit needing repair doesn’t take your whole site’s cooling down with it.
Honesty matters here: if your site genuinely needs more than a 18 kW single system can deliver — or calls for ducted plant — we’ll tell you straight rather than stretch beyond our scope, and point you in the right direction.
Commercial sizing is different
Home sizing rules don’t transfer. A café holds heat-generating equipment and a constantly-opening door; a gym holds thirty working bodies; a childcare room has regulated comfort requirements and sleeping kids. That’s why commercial work starts with a free site consultation — occupancy, equipment, glazing and trading pattern all feed the sizing — followed by a fixed written quote.
The three things that matter after installation
- Response time. Cooling downtime is trading downtime. Our care plan sites get next-day priority for care plan members; same-week service is standard for everyone else.
- Planned maintenance. Filters and coils in a busy commercial space load up far faster than at home. We schedule maintenance around your trading hours — before summer, not after the failure.
- One accountable contact. No call centre, no re-explaining your site every visit. One contact who knows your equipment, your access quirks and your history.
Compliance, sorted
Commercial electrical work has no room for shortcuts. We operate under True Line Electrical’s electrical contractor registration (REC 38009), carry public liability and professional indemnity insurance, and every installation comes with its COES (Certificate of Electrical Safety) — the paper trail your landlord, insurer or auditor will eventually ask for.
Ready to talk about your site? Request a site consultation — or call 0456 254 593 and speak to a person.
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