superheat

05-24-2010, 06:34 PM	#1
cheld Newbie   Join Date: Mar 2010 Posts: 10	superheat I have a goodman condenser with a 20 degree superheat and a 2 degree sub-cool. is that normal when its 80 degrees outside and 59 degree wet bulb temp inside?

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05-24-2010, 07:04 PM	#2
yuri Hvac Pro   Join Date: Nov 2008 Location: Winnipeg, Canada Posts: 6,617	superheat Depends on the age and SEER rating of the unit etc. Subcooling is different on higher SEER units. Depends on the Goodman specs also. My old school generic chart says you should have around 5-7 superheat so it looks low on charge to me. Your Delta T should be low also if the charge is low. __________________ "Cut it twice and it is still too short". To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Last edited by yuri; 05-24-2010 at 07:13 PM.

05-24-2010, 07:22 PM	#3
Marty S. Member   Join Date: Oct 2009 Location: Nebraska Posts: 2,297	superheat For sure it's undercharged. Subcool should around 12 with a 10-13 SEER .