Results 1 to 9 of 9
Thread: nitrogen test fail
-
14-10-2010, 02:10 AM #1
nitrogen test fail
im a plumber by trade,grabed by the nuts and thrown into a hvac system ive never heard of(lg sync 2) been told the basics of the system, and no problem with the piping, first test of the piping will not maintain pressure. all braze joints,schrader valves,flare joint,test rigs have been soap tested more time than i care to discuss.is there an issue with pressure fluctuation that i wasnt told about? any info will be greatly appreciated.
-
14-10-2010, 02:44 AM #2
Re: nitrogen test fail
yay a plumber that doesnt test with water.if you leave your gauges on for a 24 hour period your likely to see a fluctuation up to 8 psi from my observations on smaller systems.best thing is to check around same time of day at about the same ambient temperature.its a bit rude when they tell you its an inert gas even with total system evacuation,using it when you weld etc you will get fluctuations.
mmm to beer or not to beer...........lets drink breakfast
-
14-10-2010, 04:58 PM #3
Re: nitrogen test fail
Nitrogen leaking past the service valves and into the outdoor unit?
If there is a port inside then check the standing pressure. If it's too high then there's yer answer.
There is an old chinese saying: He who pressure test A/C to 650psig has never had valves leak by.
Arivadetchi,
Andy.Health and safety first..........unless I'm in a hurry.
-
15-10-2010, 03:22 AM #4
Re: nitrogen test fail
Get a qualified refrigeration Mechanic and stick to plumbing
-
15-10-2010, 03:33 AM #5
Re: nitrogen test fail
basically test pressure would 150 psi-250psi enough for me.
-
15-10-2010, 10:06 PM #6
-
19-10-2010, 06:37 PM #7
Re: nitrogen test fail
Amazes me how people will even discuss such a dangerous thing as nitrogen pressure testing, with a complete novice.
Stick to fawcetts and you won't kill yourself.
-
23-10-2010, 06:38 AM #8
Re: nitrogen test fail
Fawcetts are a car dealership in our area?
http://www.fawcettsvolvo.co.uk/
-
23-10-2010, 07:57 PM #9
Similar Threads
-
Leak Testing?
By Thana in forum Trouble ShootingReplies: 36Last Post: 31-08-2010, 02:57 PM -
Daikin VRV II Test Mode Failure
By KISS KISS BANG in forum Air ConditioningReplies: 8Last Post: 30-05-2010, 08:54 PM -
moisture test
By SkyWalker in forum FundamentalsReplies: 10Last Post: 13-04-2010, 08:49 AM -
Nitrogen Condensing by Temperarture
By Reflexive in forum Technical DiscussionsReplies: 0Last Post: 21-12-2008, 12:23 AM -
Triple evacuation on split system
By batfink in forum Technical DiscussionsReplies: 10Last Post: 05-10-2008, 01:11 PM