Somewhere in most small Maltese businesses is a warm cupboard doing critical work: a rack of network gear, the POS server, the CCTV recorder, the phone system. It runs around the clock in a country that spends five months above 30°C — and it is usually cooled by nothing, or by a domestic AC never designed for the job. This is the guide to doing it properly before the August failure does the audit for you.
Why the office split unit isn't enough
Domestic ACs assume rest: evenings off, seasons off, filters cleaned by someone who cares. Equipment cooling is the opposite duty — 24/7/365, no one watching. The specific mismatches:
- Duty cycle: running a comfort unit non-stop ages it in dog years and voids the assumptions behind its service intervals.
- Winter: on cold nights a comfort unit may not cool at all when the room still needs it — equipment heat doesn't take December off. Proper equipment cooling handles low ambient operation.
- The condensate problem: a blocked drain above €30,000 of switchgear is not the same event as one above a sofa. Drainage design — often with a condensate pump and always away from the rack — is part of the spec.
- Restart behaviour: after a power cut, domestic units may sit waiting for a remote control that nobody presses at 3am. Equipment cooling must auto-restart — a configuration detail that has cooked more than one Maltese server room.
The right-sized solution ladder
- Micro setups (a router shelf, one small rack): sometimes good ventilation genuinely suffices — a through-wall extraction fan with filtered intake, moving hot air out faster than it accumulates. Cheap (€150 – €400) and honest for sub-kilowatt heat loads.
- The standard small-business case: a wall-mounted split unit specified for 24/7 duty with auto-restart and low-ambient capability, sized to the equipment's heat load plus margin — €800 – €2,000 installed. Oversize modestly; a unit loafing at 60 percent lasts, one sprinting at 100 percent doesn't.
- Redundancy where downtime costs real money: two units, each capable of the full load, alternating duty (a lead-lag controller or simple weekly manual swap) — so a failure means an alert, not an outage. The single-point-of-failure logic applies with money attached.
- Monitoring, always: a €30 – €100 temperature sensor that messages someone is the highest-ROI item in this entire article. Heat failures give hours of warning to whoever is listening.
The maintenance contract
Equipment cooling earns servicing at twice the domestic rhythm — every six months: coils, filters, drain line, refrigerant health, auto-restart test. For businesses, this is exactly what a standing arrangement with a provider is for: post the room's details (equipment list, room size, photos including the drain situation) on Qabbad's AC page and ask explicitly for 24/7-rated options and a service schedule. Providers who ask about heat load and restart behaviour in their reply are the ones who have done this before.
Frequently asked questions
What AC does a small server room need in Malta?
A split unit specified for continuous duty: auto-restart after power cuts, low-ambient winter operation, drainage engineered away from equipment, and sizing with margin over the measured heat load. For genuinely critical rooms, two alternating units.
How much does server room cooling cost?
From €800 to €2,000 installed for a single 24/7-rated split on a small room, doubling with redundancy. A temperature alert sensor (€30 – €100) and six-monthly servicing are the cheap components that protect the whole investment.
Can I use a normal home AC for equipment cooling?
It will work until it doesn't — comfort units aren't built for continuous duty, may not cool in winter, and often don't restart after outages. If the equipment matters, the specification difference costs little against what it protects.