Every piece of refrigeration and air conditioning equipment carries a data plate, and it’s the first thing a good engineer checks. It holds the key information for safe servicing and F-Gas record keeping.
What the data plate shows
- Refrigerant type — e.g. R32, R410A, R290 — never assume; always confirm here
- Charge weight — the factory refrigerant charge in kg or g
- Design pressures — high and low side limits
- Model and serial number
- Electrical ratings
Why it matters
The refrigerant type tells you which gas, tools and oil to use (and the safety class). The charge weight is essential for calculating the system’s CO2-equivalent for F-Gas leak-check thresholds and record keeping. The design pressures guide safe testing.
Tips
Photograph the data plate for your records, and note that on split systems the charge may need adjusting for pipe-run length beyond the factory figure. If the plate is missing or illegible, consult the manufacturer’s documentation.
FAQ
Where is the data plate? Usually on the outdoor/condensing unit or the side of the equipment — look for a metal or printed label with the model and refrigerant details.
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