View Full Version : old lennox
just replaced furnace/ a/c lennox g6. Just amazes me how simply, yet heavy duty these old units are. Original fan, compressor, no leaks. I took the flare fittings off the evap and cond units and they had a weird looking piece of metal, looked like an arrow cut down the middle on both pieces then inserted together, I guess its the orifice they used. The other thinh was the cap, 35 mfd 370v, but the thing was 4or 5 inches and at least 8 in. tall, gosh makes you wonder if size has anything to do with all the run cap problems weve ben having.
09-25-2006, 08:37 PM
good old caps with the pcb s lasted forever
09-25-2006, 08:39 PM
no they are line pierces as I recall - yrs ago you could buy precharged linesets so you just ran the lines and connected the couplings tightened up the nuts and thoese would pierce the metal seals and voila a clean tight system - no vacing just let er rip
dam penguin your right, I could see that the lines where piersed, but didnt put the two together, so what type of metering device did they use?
09-25-2006, 08:51 PM
What you saw is most likely an Aeroquip fitting. Aeroquip was sold to Eaton who I believe sold the refrigeration line to Parker.
09-25-2006, 08:53 PM
If I remember what a G6 was I believe that the entire liquid line was one long cap tube.
09-26-2006, 06:27 AM
G6 is a furnace. But you are right, the HS4, HS6, HS8 outdoor units did use the RFC liquid line. You told the supplier what your line run was and that was that, no extending or shortening.
09-26-2006, 07:39 PM
Thanks, should have remembered that. What are they about 35 years old now?
09-26-2006, 08:47 PM
Last HS8 was 1975, then the HS9 came out with standard lineset and TXV or RFC-II meter. I think the HSW4 was around longer, it's that sucker that mounts in a wall.
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