Author Topic: Lennox / Coil / Evaporator  (Read 13936 times)

Offline Repair-man

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Re: Lennox / Coil / Evaporator
« Reply #10 on: September 12, 2009, 09:06:09 AM »
Yours is a Heat Pump system, requiring a special coil. Only a Lennox dealer can see all the choices and dimensions to match your coil. You should call one to see if he will give you a matching coil part number for both a 2.5 and a 3 ton upflow coil for heat pumps. Most of us do not have access to their systems. You may have better luck on an air conditioning specialty forum...we have limited access to specific dealers databases when it comes to air conditioning.

You'll need a licensed AC person to do the job anyway, so I'm not sure why you are bothering with the research.
« Last Edit: September 12, 2009, 09:12:18 AM by Repair-man »
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Offline JWWebster

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Re: Lennox / Coil / Evaporator
« Reply #11 on: September 12, 2009, 10:39:04 AM »
If you have a 2.5 ton I would go with a 2.5 ton A-coil. My brother just went round and round with a heat pump in one of his rental houses. He got a "DEAL" on it from somebody at church. It was mismatched and never did do the job. The guy finally came out and replaced the whole thing with a matching system. So far he has had to come out 3 more times to get that one right. You would think if a guy installed a complete new system he would install a new wall thermostat that matches the system (he didn't) and ruined a board. He told my brother not to bother paying him anything. Go figure.
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Offline Repair-man

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Re: Lennox / Coil / Evaporator
« Reply #12 on: September 12, 2009, 10:46:06 AM »
Unfortunately, there are half-asses in all walks of life, including the repair industry. It's what separates the reputable ones from the bargain-seekers and often gives the entire industry a bad rep.
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Offline Charisma

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Re: Lennox / Coil / Evaporator
« Reply #13 on: September 22, 2009, 12:13:27 PM »
Finally found someone to install a new Lennox coil. My question is should I have him install a TXV or is it not necessary? When I asked him about it, he said, there are alot of problems with them, and the extra energy saving that I would get is not worth the $$.


Offline Charisma

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Re: Lennox / Coil / Evaporator
« Reply #14 on: September 22, 2009, 12:14:41 PM »
is that all it does? extra SEER? does it not help cool better?

Offline jumptrout51

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Re: Lennox / Coil / Evaporator
« Reply #15 on: September 22, 2009, 12:47:04 PM »
All systems operate off of TXV or a fixed orifice. Yours must have one or the other.SEER is energy efficiency for the specific unit. The tonnage of the unit is the cooling capacity for the given space. The higher the SEER the less it should cost to operate.
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Offline Repair-man

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Re: Lennox / Coil / Evaporator
« Reply #16 on: September 22, 2009, 12:59:21 PM »
Having the TXV is a good thing...it helps the unit get peak cooling during the run time, maximizing the efficiency of the unit. When I install these systems, I always add a hard-start kit and a time-delay relay (delay on open) to assure the compressor will start every time and not be affected by temporary power outages, such as during a heavy storm. Even though these may be optional accessories, any good AC man worth his salt will include them in the installed price. It's called "taking care of your customers".
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Offline sgilber

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Re: Lennox / Coil / Evaporator
« Reply #17 on: September 23, 2009, 09:24:20 PM »
(R-410A) is not flammable at ambient temperatures and atmospheric pressure. However, this material will
become combustible when mixed with air under pressure and exposed to strong ignition sources.
Contact with certain reactive metals may result in formation of explosive or exothermic reactions under specific conditions
(e.g. very high temperatures and/or appropriate pressures).

Offline Repair-man

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Re: Lennox / Coil / Evaporator
« Reply #18 on: September 23, 2009, 09:53:58 PM »
That is also correct and I have pictures of flaming condensing units to prove it. Thanks for your input.
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Offline whirlpooltech

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Re: Lennox / Coil / Evaporator
« Reply #19 on: September 23, 2009, 10:49:20 PM »
Could you post the pictures? I would like to see them.

 

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