A working day as a cooling technician — service, troubleshooting and installation...
How daily life looks when you keep refrigeration, heat pumps, and air conditioning running
No two days are alike as a refrigeration technician. One day you're in a supermarket servicing refrigerated cases, the next you're troubleshooting a heat pump in a private home or installing air conditioning in an office building. What ties it together is a systematic way of working.
§Planned service
Planned service
§Troubleshooting — the trade's core
When a facility doesn't cool, you need to find out why. Is there too little refrigerant? Is the compressor broken? Is a valve clogged, a sensor faulty, or a control incorrectly set? Here you work like a detective: you measure pressures and temperatures, compare with what the system should be doing, and narrow down the fault step by step. Guessing costs time and spare parts—measuring systematically leads to the right diagnosis.
§Installation and commissioning
With new systems you install pipes compressor evaporator and condenser solder and seal it tight so nothing can leak. Before the system is put into use it must be evacuated — air and moisture are sucked out with a vacuum pump — and then filled with the correct amount of refrigerant. A system assembled carefully and evacuated properly runs trouble-free for many years carelessness here gives errors that first appear months later.
§Documentation and communication
Each task comes with paperwork: what was wrong with the system, what did you do, how much refrigerant did you add or remove. The amount of refrigerant must be documented because you are legally required to keep track of it. At the same time, you should be able to explain to the customer what was wrong and what it costs — preferably in a language without jargon. The one who both knows the craft and can communicate it will be called back.
§Where you work
Refrigeration technicians are in demand in many places: in supermarkets and the food industry, in freeze and cool storage facilities, in restaurant kitchens, in hospitals, in industry with process cooling and in private homes with heat pumps. Many work for a service company and drive to customers, so the car is your mobile workshop. Part of the field is therefore also planning the day so you have the right parts and tools with you.
“Troubleshooting is not knowing the answer beforehand — it's measuring your way to it without skipping a step.”