lennox? which model

[hem057]

can anyone id this lennox model no.

[commercial J]

I cant tell you the model. Another tech i work with is pretty familiar with lennox. If you could get a pic of y1, y2 he might be able to match it up. I was told in the past the way suction and discharge angle out of y1, y2 he can match at least the tons hopefully then model. that RTU looks history. Heat exchangers still GOOD?:eek2:

[commercial J]

i've seen those before let me check my van. they have those barrell heat exchangers. if i can find a pm sheet i didn't turn in lol. looks so familiar. sorry man i'll post up if i can find the model i have. i had to take vacuum pump oil just to read the stamped model number on the metal plate

[hem057]

GCS16?

[commercial J]

5 ton.?

[hem057]

will this help
73342

[yellowirenut]

wow..that pic is wall of shame material...looks like its been ridden hard and put away wet one to many times

[DPinst]

Gcs3 1353 about 30 years old a work horse of a unit seems to last forever and will not die . I think it is a 10 ton unit

[DPinst]

nice combustion blower motor . not original

[commercial J]

sorry not sure. I think Heat exchanger has a number on it. Lennox can Identify the unit model with that code number. sorry.

[hem057]

yes yellowirenut- sure is a beauty.... amazing what some guys will do.... gotta wonder what they are thinking.... I knew it was GCS but ? thanks that helped, found it in my lennox book witha that help

[DPinst]

Sure looks like a roof out here on the west coast .There are still a lot of them around and still working .
Usualy find the burner plate cracks and pieces fall out of it .Would be really concerned about that combustion blower motor. It has been replaced and not with the original.
Also do not see the original air proving switch to prove combustion air

[The Doctor]

GCS3 it brings back memories of having the burner sight glass knock me on my bullhunkus in the snow. Of course, I had unbolted it just prior to light-off. The air-proving switch had gotten a bit sticky.

[commercial J]

same here. let my supervisor know the heat exchangers were bad. He knew I havn't messed with those old lennox b4.I asked about the sight glass being off to check the flame...sight glass was blacked out and burnt. He told me, slim tell the truth ur missing eyebrows huh?. I lucked out jumped back just in time. like a dragon. was told it could only lite up with pressure built up (site glass on) :cheers: