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Old 03-28-2009, 01:38 PM   #1
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Lennox air handler


I have a Lennox air handler with all the wiring to the 3 sequencers off. I tried Lennox, but their diagrams for the unit don't show the sequencers. Is there a generic wiring diagram for sequencers?

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Old 03-28-2009, 01:52 PM   #2
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Hopefully Yuri will see this post. He's the lennox man. You might post model # since they make more than one air handler

There should be a diagram on one of the doors as well.

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Old 03-28-2009, 02:05 PM   #3
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Post the model and serial # and I may be able to help. No generic diagrams and how did the wiring get disconnected in the first place? Are you an electrician?
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Old 03-28-2009, 02:20 PM   #4
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Quote:
Originally Posted by yuri View Post
Post the model and serial # and I may be able to help. No generic diagrams and how did the wiring get disconnected in the first place? Are you an electrician?

I knew you would sniff out this lennox..Hi Yuri
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Old 03-28-2009, 04:33 PM   #5
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Quote:
Originally Posted by yuri View Post
post the model and serial # and i may be able to help. No generic diagrams and how did the wiring get disconnected in the first place? Are you an electrician?
rofl.
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Old 03-28-2009, 05:03 PM   #6
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Actually I don't mind being trolled or spoofed if that is what happens. Seems rather pathetic. I am really interested in helping the honest people like mary d and the rest of the jerks remind me of kindergarten kids. Pay it forward, works for me, I get help when I need it.

Last edited by yuri; 03-28-2009 at 05:08 PM.
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Old 03-29-2009, 08:40 AM   #7
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Quote:
Originally Posted by yuri View Post
Post the model and serial # and I may be able to help. No generic diagrams and how did the wiring get disconnected in the first place? Are you an electrician?

A friend of mine bought the house. Wiring already off. No, I'm not an electrician. I am a Chief Engineer in a hotel. I am HVAC certified, just never ran across a situation where all the wires are off. (foreclosed property, probably P.O.'ed former owners) I researched thru Lennox, the wiring diagrams they sent thru email don't show the wiring of the sequencers.

The model # is CB29M-31-1P.
Serial # is 5899G41328
Thank you for any help.
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Old 03-29-2009, 11:45 AM   #8
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I checked DaveNet and the service manuals for that coil blower unit and unfortunately there are no diagrams like the one you need. We never get calls for them and most techs use the ladder diagram for troubleshooting or their experience. If you know of an tech or electrician who services electric furnaces you may want to swap favors and get their help. I would check all the elements for continuity first. All the wiring has to be done with high temp stove grade wiring not ordinary #12 wire. It is not a huge job for an experienced guy.

Good Luck
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Old 03-29-2009, 11:47 AM   #9
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Link to the install man

http://tech.lennoxintl.com/PDFs/505339b.pdf

Link to the Service man "This is the one with wiring of seq"

http://tech.lennoxintl.com/PDFs/9711f.pdf

Last edited by Plumber101; 03-29-2009 at 11:49 AM.
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Old 03-29-2009, 12:00 PM   #10
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Originally Posted by John C. View Post
I came here because someone told me the "experts" were willing to help when "non experts" (me) got stuck with situations. I'm not trying to be an expert on residential systems, or anything outside of my realm. Just trying to help out a friend. I've worked on plenty of units in the past, but have never come across a unit with all the wiring pulled out. Everything else has been reinstalled according to the schematics. Just don't have anything on this certain set of wires. My lack of knowledge may be funny, but I thought that's why the "experts" are here.
Sorry if I am taking this too serious, just want to get my friend's kids some heat.

Also, around here just unwind a little, a little humor is always good.


I always wanted to play a doctor on TV.

I'm not really a plumber, I just play one in life. Hows that clover? LOL
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Old 03-29-2009, 01:36 PM   #11
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Originally Posted by Plumber101 View Post
Also, around here just unwind a little, a little humor is always good.


I always wanted to play a doctor on TV.

I'm not really a plumber, I just play one in life. Hows that clover? LOL


I know, got a little hot under the collar. Just really frustrated with this.
Thanks for the links. This is exactly what I was looking for. Will let you all know if it works.

Thanks again.
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Old 03-29-2009, 03:32 PM   #12
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I'm not really a U S Marshall, I just like carrying the badge. LOL
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Old 03-29-2009, 04:11 PM   #13
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Quote:
Originally Posted by yuri View Post
Actually I don't mind being trolled or spoofed if that is what happens. Seems rather pathetic. I am really interested in helping the honest people like mary d and the rest of the jerks remind me of kindergarten kids. Pay it forward, works for me, I get help when I need it.
You are a class act .
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Old 03-29-2009, 04:15 PM   #14
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Quote:
Originally Posted by Plumber101 View Post
Also, around here just unwind a little, a little humor is always good.


I always wanted to play a doctor on TV.

I'm not really a plumber, I just play one in life. Hows that clover? LOL

A little Humor is good as long as you are the one providing it, GOD help any one else who tries it.
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Old 03-29-2009, 07:22 PM   #15
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Quote:
Originally Posted by Plumber101 View Post
Link to the install man

http://tech.lennoxintl.com/PDFs/505339b.pdf

Link to the Service man "This is the one with wiring of seq"

http://tech.lennoxintl.com/PDFs/9711f.pdf

Thanks for the info. The sequencers are all done, everything worked out. Found the blower relay blown, replaced it and my friend and his kids are nice and toasty.

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