Results 1 to 3 of 3
Thread: R410A Suction Pressures
-
06-07-2009, 04:49 AM #1
R410A Suction Pressures
With 410a heat pumps is there a recommended suction pressure. For example with R22 air-con systems I always aim for 400 suction and 1500 discharge and similar with 407c systems. I have been told to aim for round the 100 psi/700kpa mark with is about 0 degree C Was just curious for fault finding purposes.
Cheers in advance,
chris.
-
06-07-2009, 06:30 AM #2
Re: R410A Suction Pressures
Pressure is not the right way to charge any system, regardless of refrigerant.
You might want to check out this thread:
http://www.refrigeration-engineer.co...ad.php?t=19701
-
06-07-2009, 12:41 PM #3
Re: R410A Suction Pressures
Um yeah, what do you mean "aim for". Pressure is relative to temperature, I wouldn't be aiming for 400kPa or 0C on a system thats running at 40C indoor temp for R22.
20K differential at air on temp is what it should be around, that means 400kPa at 20C indoor temp for R22. But even then you have pressure loss to factor in etc.
Pressure is a result of design and ambients, not something you "aim for" as a target. Pressure is even more useless these days with inverter a/cs.
Similar Threads
-
Copeland select 6
By Copman in forum Tools and CalculatorsReplies: 9Last Post: 27-05-2010, 09:01 PM -
Some information on the aplication of suction gas/liquid line heat exchangers
By SteinarN in forum FundamentalsReplies: 5Last Post: 14-09-2009, 07:33 AM -
Suction pressure R410A
By R1976 in forum Air ConditioningReplies: 10Last Post: 26-03-2009, 01:52 AM -
Dry suction of one vessel into the wet of another!
By I LUV NH3 in forum NH3Replies: 0Last Post: 14-05-2008, 05:05 PM -
Benji
By benji in forum Trouble ShootingReplies: 29Last Post: 30-01-2008, 01:25 PM