lennox hs8 - http://www.hvacmechanic.com/ Forums


Original message

ksujws

72.135.21.35

"lennox hs8" , posted Fri 22 Aug 23:51user profileedit/delete messagepost reply

As you can tell by the title I have a old Lennox a/c, never had any problems until this year. Had it looked at twice, recharged twice, and was told the "A" coil was leaking. Not sure I want to replace the whole unit because of the cost, besides it runs well. Our local HVAC said he would replace the a coil with a new one, which by the way I was told would be compatible with the new outdoor unit if I was to buy one later. The model # is HS8 461 IFFP, I understand it is a 4 hour procedure and is expect to around $1000 depending on the amount of refrig. used. At this price is it worth it

 


Replies:

aircooled



99.138.128.122

"Re(1):lennox hs8" , posted Sat 23 Aug 07:17user profileedit/delete messagepost reply

I would replace condenser to, but if your $$$$ are not available then make sure that your refrigerant lines are the right size.

Most of the older Lennox systems used 5/16" RTTV line for metering of refrigerant into coil. New systems require 3/8" liquid line, if your just changing the coil better make sure to change line or you
will have problems in the future.

Lennox size:
HS9-461 = 3.5 ton

"People will forget what you said people will forget what you did but people will never forget how you made them feel."

 

 

yuri



142.161.69.44

"Re(2):lennox hs8" , posted Sat 23 Aug 10:51:user profileedit/delete messagepost reply

In my opinion it ain't worth it. I installed hundreds of them starting in 1978. Only about 2% of them are left running in my area. Most of them the compressors wore out and seized up from old age (like 300,00 miles on a car motor). That unit is 6-8 SEER and your new unit is 13 and it is a gross missmatch. The lines size is another issue. You are currently using R22 refrigerant and the new condensor in the future will use R410. You will have a cross contamination problem later and need a very expensive line flush kit to clean them out. Buy a new Lennox XC series and you will get 20 or more yrs from it and better value.

Yuri

[this message was edited by yuri on Sat 23 Aug 11:19]