Hi
I would like to use the pc to control aworking machine or any equipment in another way I would like to use the pc to monitor the equipment working parameters so the men in duty can control the equipment in service remotely from acontrol station without any need for localy control.
a...
Hi,
I have AC unit of 80 tons capacity with aworking compressor w-type (carrier) it has been retrofited to R-134a,using synthetic poloyol ester oil as a lubricant,I know that the oil may be transfered through the system as amist with the refrigerant. may concern is to know the actual oil level...
is the R 134-a has any cleaning or corrosive effect on the metal of the piping , here is my problem i have an air conditioning unit with carrier compressor it has been modified from R-12 to R-134-A after 100 hrs of operation a sample of oil shows some dirts (oil is black ) no metal content or...
