Coolstore and refrigeration ammonia (NH₃) systems carry serious hazardous-area and toxicity risk. We make them compliant — and keep them that way.
Ammonia compliance is becoming a council requirement. Insurers and territorial authorities are increasingly asking coolstore and food operators to demonstrate a documented, defensible ammonia compliance position. Getting ahead of it now avoids rushed shutdowns later.
Ammonia is an efficient, low-cost refrigerant — which is exactly why it's everywhere in New Zealand's coolstores, freezers and food-processing plants. But it's both flammable and acutely toxic. Where it can leak and accumulate, you have a hazardous area that must be classified, and electrical equipment that must be suitable for it. On top of that sits a life-safety obligation to detect a leak before it harms people.
That combination — explosive-atmosphere classification plus toxic-gas detection plus refrigeration-plant compliance — is why ammonia sits at the centre of what we do.
We survey the plant room, engine room and any location where ammonia can be released, and produce classification diagrams to AS/NZS 60079. That tells you exactly where Ex-rated equipment is required and where it isn't.
Design, supply and installation of fixed NH₃ gas detection — sensor placement, alarm thresholds, ventilation interlocks and integration with your BMS or refrigeration controls. Detection is your first and most important layer of defence.
Where existing equipment doesn't match the classification, we upgrade it — Ex-rated fittings, correct glanding and sealing, and intrinsically-safe barriers as required.
Independent EEHA inspection of the installation, a compiled verification dossier, and final sign-off — the paperwork that proves compliance to your insurer, auditor or council. See classification, dossiers & sign-off.
Early leak detection and correct hazardous-area design keep staff safe from a toxic, flammable gas.
A documented compliance position satisfies pre-qualification, insurance and territorial-authority requirements.
Fix it on your schedule now, rather than under a compliance notice with product at risk.
A single verification dossier that answers every question an auditor can ask.
Protect your plant. Protect your people. Protect your profits.