View Full Version : Charging by gauge temperature
andyhalf
12-06-2014, 10:09 AM
Hi Guys,
can anyone help me on this one.
If i dont have a badged charge weight on a split system can i charge it by the temperature readings on my gauges?
andy
jonjon
12-06-2014, 08:02 PM
Ideally you should find out from the manufacturer or work off your air off temp on the evap
Rob White
13-06-2014, 09:12 AM
.
I have a Refrigerant charge calculator produced by DEFRA,
it is only a guide, but if you want a copy PM me your email
and I will forward you it.
I can't vouch for it's accuracy because I have never used it
in anger but it is a starting point.
Rob
.
aircon50
27-06-2014, 01:39 PM
If no info is available recover any remaining refrigerant.
Charge by measuring superheat will also get you a good starting point, and ensure that no liquid returns to the compressor. At the same time, note the weight of refrigerant added and you can mark the unit accordingly.
Graham
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