thomas86
06-10-2012, 08:58 PM
Dear,
I'm new in the field of airco/heat pump installations. For my first installation of a 4MXS heat pump i was at the stage of making the system vacuum when suddenly refrigerant was starting to come out of the vacuum pump.
I connected the vacuum pump at the service valve, gas side. I did not touch the gas stop valve.
First all was going well, but after 30 seconds, it seemed suddenly some gas was released. Pressure gauge went to "atmosphere" and a bit of smoke was realeased from the vacuum pump.
What can the problem possibly be? A defective service valve?
Will I have lost too much R411?
I'm new in the field of airco/heat pump installations. For my first installation of a 4MXS heat pump i was at the stage of making the system vacuum when suddenly refrigerant was starting to come out of the vacuum pump.
I connected the vacuum pump at the service valve, gas side. I did not touch the gas stop valve.
First all was going well, but after 30 seconds, it seemed suddenly some gas was released. Pressure gauge went to "atmosphere" and a bit of smoke was realeased from the vacuum pump.
What can the problem possibly be? A defective service valve?
Will I have lost too much R411?