View Full Version : Oil level verification on Lennox HS26 after relocation and new A-Coil
06-09-2007, 07:29 PM
My installer is going to connect a Lennox HS26-036 3 ton R-22 based condenser that was removed from a home after a year due to a remodel that added a second story (and a whole lot of square footage) that required a larger unit. The condenser is like new, built in 2001, was professionally recovered and sealed. The unit has the Copeland scroll compressor and has a small holding charge of R-22. Line set is 36' 7/8" X 3/8" and will be flushed before installation as this was the original line set for the old unit which was removed due to age, not due to failure (old HS-6 that worked great for 30 years!).
The A coil is a new Lennox C 33-44C-2F cased coil with a matching Lennox TXV kit that is ARI rated for this condenser. Installed with a new 2 stage VS furnace last winter.
I have been discussing the oil charge with my installer and was wondering what the learned opinion of the board is regading adding any oil to the new R-22 charge to compensate for any that might have been left in the old coil and lineset. If so, how much? Any easy way to recover the oil and measure the quantity without un-brazing the compressor?
Home is in Minnesota and thanks for the response!
tinknocker service tech
06-09-2007, 07:48 PM
i wouldnt worry about the oil
you can not remove it with out removing the compressor
even if you did you would find if any lose at all it would be so minamil that it was a lot of waisted time and money
but it in and enjoy it
the HS-26 is a great unit
Boy, It's hard to believe that someone who would re-use old equipment would be so concerned with the precise oil charge of an ODU. Ok. Pull the comp, and recharge oil per manu. spec. It's the only way you can be sure, down to the ounce, that the oil charge is correct.
06-09-2007, 08:15 PM
I guess you might say this is a "old" unit but with one season of use and being professionally sealed, why not recycle????
Ok.. w/ that model #, this Lennox is 1 year parts, 5 year comp warranty. Knowing it was professionally handled, I too would re-use the condenser. My only point was, (sorry for being a smart ass) don't be so concerned with the oil charge. It's out of warranty, if the piping was correct, the compressor contains 99% of it's original oil charge.. install it and forget it.
06-09-2007, 08:32 PM
No offense taken Ira. I seem to remember some install manual or document I ran across that speaks of a oil adjustment when you install a new coil in a existing system. My installer, who by the way, does museum quality work, has the same recollection so we are both on the hunt for answers/opinions.
06-09-2007, 08:45 PM
The HS6 used the RFC1 metering system which was a 3/16" liquid line that functioned as the flow control. If it had a 3/8 x 7/8 line, it had no meter unless it wasn't on the original coil.
That being the 10 seer condenser, are you installing a 13 seer coil ? If not, the oil equivallency difference is negligible.
06-09-2007, 10:10 PM
The coil is a new Lennox C33-44C-2F 13+ SEER coil and the ARI match up indicates we should get 13 or so out of the new combination. The old HS6 did have a metering device on the coil with a 3/8" liquid line. Should be more efficient than the old HS6.
tinknocker service tech
06-09-2007, 10:44 PM
guys it is an ( HS26 ) this has a scoll compressor and with that coil he should get about 14 seer if my memorie is correct
this also had a ten year compressor warrenty witch i would admagin lennox will still honer as long as it is installed correcty and since it is a matching coil
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