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Free PDF downloads & Lennox AHVAC Equipment Age Decoder

Lennox Manuals, parts lists, wiring diagrams for HVAC equipment:

Free downloadable manuals for Air Conditioners, Boilers, Furnaces, Heat Pumps. Here we provide free downloadable copies of installation and service manuals for heating, heat pump, and air conditioning equipment, or contact information for the manufacturers who can provide that information for nearly all major brands of HVAC equipment.

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Lennox Furnaces, Heat Pumps, Air Conditioners - Contact Information, Manuals, Data Tag Decoding - contact information

Flamemaster gas furnace logo (C) InspecApediaFree Lennox Furnace, Heat Pump, Air Conditioner Installation & Service Manuals, Wiring Diagrams, Parts Lists

Below we provide HVAC manufacturer contact information and direct links to free downloadable installation, service, and users manuals, focusing on hard-to-find manuals for older models or discontinued equipment. We also provide links to the manufacturer's current model lists and literature.

See LENNOX HVAC MANUALS & PARTS GUIDES Industries Air Conditioners, Furnaces, Heat Pumps , Manuals, Guides

To find a Lennox Dealer near you go to http://www.lennox.com/residential/ and enter your zip code in the box at the web page upper right corner, OR use the links to Lennox at the left side of this web page (supplied by Google).

 

Lennox HVAC Product Label Informationm

Lennox HVAC equipment like the indoor air handler or outdoor compressor-condenser unit is identified by a product data tag or sticker that contains information about the unit. The data tag will include two key identification fields: the product designation or identification code and the product's individual serial number.

Lennox Product Serial Number & equipment age

The product serial number is a unique character string including numbers that can be decoded to give the product's age and manufacturing details.

[Details & citations needed]

Lennox Product Designation Codes

Lennox product or model number decoding guide at InspectApedia.com

The product designation or model identification code is a character string that provides information about the product type, features and capacity.

Lennox HVAC Manuals

Lennox G14 Parts at InspectApedia.comLennox: free, downloadable Lennox Pulse Furnace User's Manuals and Service Manuals are listed just below:

Other Lennox owners manuals for air conditioners, air handlers, furnaces, heat pumps, indoor air quality systems, packaged units, water heaters, zone controls and other controls such as thermostats, are provided by Lennox at http://www.lennox.com/support/manuals.asp

 

 

 

 

 

 

 

 

 

 

Also see MAGIC PAK HVAC Packaged heating & cooling systems

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Reader Comments, Questions & Answers About The Article Above

Below you will find questions and answers previously posted on this page at its page bottom reader comment box.

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs

Where can I find OEM performance data for my Lennox air conditdioner?

How can I get hold of OEM expanded performance data? The manufacturers websites seem to be password protected. Do all 5-ton AC units have much the same latent cooling capacity? - On 2022-02-12 by Trevor Williams

Reply by Inspectapedia Com Moderator

@ Trevor Williams

I'm in over my head trying to answer this question but thanks, it's important and interesting.

Older Lennox units that used copper coils may have seen more leakage from corrosion than newer ones (since 2014) that have, like other manufacturers, changed to aluminum. That may be a factor in the leakage your system experienced.

The Trane XR16 is one of the "lower end" (less costly) lines offered by that company and has a SEER around 16 or 17. The Trane XR16-4TTR6061B or 4TTR6060B are its 5-ton rated units rated at actually 60,000 btuh. The Trane XR16-4TTR6061C, also a nominal 5-ton unit actually has a little smaller cooling capacity-actual, of 57,500 btuh.

So if your Trane is a different model, nominally a 4-ton unit, it's not one of those above.
See this Trane example 5-ton unit energy guide for the Trane-XR16-4TTR6060B that is actually rated around 14 SEER. https://inspectapedia.com/aircond/Trane-XR16-4TTR6060.pdf

The Lennox HSXB15 series claim SEER between 12 and 15, varying among model sizes, with the -060 signifying a 5-ton unit. The fact that the energy ratings differ might be a clue that the actual field performance may vary, too, for two A/C units of equal ton-rating.

I will attach a chart, just an excerpt from a larger document with more data and not necessarily exactly your Lennox unit, but illustrating some of the variables in the actual cooling capacity of a given air conditioner. You'll see that the cooling capacity is affected by or varies, for the exact same unit in otherwise identical installations, based on changes in the entering air temperature, the air volume or flow rate through the system, and the outdoor air temperature entering the condensing coil.

Given that example it would be no surprise that two 5-ton units from two different manufacturers, sporting different engineering details, designs, specifications, may actually vary in their effective cooling capacity or, as your question puts it "cooling output". Details for your Lennox unit are

in LENNOX-HSBX-15-SPECIFICATIONS

Followup by Trevor Williams

Many thanks for the response. (Apologies: I meant ‘sensible’ cooling rather than latent cooling.) Here’s the larger issue that prompted my question.

We plan on replacing a 5-ton Lennox (HSXB15-060) with a 5-ton Trane XR16. The Lennox unit cooled 3200 sq ft without problems for 15 years but leaked 6 lbs of refrigerant last year.

Wrightsoft sizing calculations indicate that we need a unit delivering about 60,000 BTUh sensible cooling and 6,500 BTUh latent cooling (setpoint 77F). The Trane replacement delivers a little more than 40,000 sensible BTUh’s and so appears undersized. I assumed all 5-ton units delivered much the same cooling output.

If so, how come the Lennox worked so well? OR, does the 5-ton Lennox deliver more sensible cooling than a 5-ton Trane? Is there a lot of variation between nominally equivalent units in the same environment?

Reply by Inspectapedia Com Moderator (edited) - Not all air conditioner "tons of cooling capacity" ratings are equal

@ Trevor Williams

Latent cooling is in essence the energy required to remove moisture from indoor air - dehumidification. Asking if all 5-ton AC units will have the same latent cooling capacity is perhaps a little tricky.

On the face of it, 5 tons of cooling capacity, if we keep all building conditions the same (occupants, indoor humidity level, other sources of indoor moisture, air leakage etc.), ought to have the same latent cooling capacity.

OPINION: But I'm not so sure.

A simple change such as blower fan speed or even cooling coil design or how moisture is collected and removed in the air handler may cause variations in just how efficiently a given 5-ton cooling system dehumidifies indoor air.

And if the cooling capacity is over-sized for the building, the indoor air will be cooled, but it will not be successfully dehumidified.

For other readers

at DEFINITION of HEATING, COOLING & INSULATION TERMS

we provide definitions of sensible and latent heat and cooling, including

LATENT HEAT & LATENT COOLING

There we provide a more scholarly exposition and expert references you might want to review.

For example, we cite Shirey (2006) who points out that just how moisture is collected and removed from a cooling coil may affect re-entrainment of moisture back into indoor air between operating cycles of the equipment.

And I don't assume that all air handlers, cooling coils, and condensate collection and removal designs are identical across various 5-ton cooling system air handlers. We certainly see differences that result, in some cases, in moisture blowing off of the coil and into the ductwork (a candidate for re-humidification). Thank you for a helpful question.

3 Year Old Lennox not providing sufficient cooling

I have a 3 year old lennox hvac system (Complete new system ductings etc.). Currently experiencing low overall cooling capacity. Condenser is clean, fan blowing, compressor pumping. However, both high pressure and low pressure are cold either at condenser or coil. Air filter is clean. Any ideas? The contractor that installled unit is no longer in business. Thanks

re: additional info to my last post. The airflow is very good. The air filter is good (pleated type), no obstructions. Just noticed a drop of refrigerant oil hanging off of the high pressure side between a small canister I assume is a filter and the expansion valve. Thanks - On 2011-07-06 by Brad

Reply by (mod) - drop of refrigerant oil hanging off of the high pressure side

Brad: "drop of refrigerant oil hanging off of the high pressure side" could mean you have a refrigerant leak at that fitting.

And yes the small canister is usually a water filter installed on a line when a system has had to be opened for service.

Re: "low overall cooling capacity" you didn't indicate if the air flow volume is low or the air flow volume is ok but the temperature of the air supply is not cool enough.

That distinction is not a bad place to start diagnosing air conditioning: low air flow points to dirty filter, blocked or disconnected ducts, a closed register or damper, blower problem, air leaks etc.

Air supply that is not cool enough points first to a refrigerant loss or a comperssor condenser problem.

 

Need Help with my Lennox A/C Unit - I messed up the wiring

Need heat messed up wiring - On 2021-01-21 by Anonymous -

Reply by (mod) -

Usually the wiring is pretty simple.

See the drawing on a sticker inside the heater cabinet.

Or ask a specific question.

Watch out: if you're not trained in safe electrical wiring you could be shocked or killed or start a fire. Get help from an expert.

Specs ie: weight for any of the following lennox rooftop Units: LGC0362SBH1Y, LGC0725SBH1Y, LGC1025SBH2Y

Do you have any specs ie: weight for any of the following lennox rooftop units LGC0362SBH1Y, LGC0725SBH1Y, LGC1025SBH2Y - On 2021-01-15 by ICE Mechanical Services Ltd

Reply by (mod) -

ICE

Isn't it incredible that Lennox makes it impossible to find a telephone number or email to contact the company to ask even the most simple question?

We are left with following what Lennox wants us to do: contact your local Lennox supplier, as for technical support, and hope.

https://www.lennoxpros.com/stores might get you to someone at Lennox

 

Do you sell a Parts Manual for Nat. Gas Lennox furnace G60UHV(X) ?

Do you sell a Parts Manual for Nat. Gas Lennox furnace G60UHV(X) Model 5908 CO 7448 Series #6A-070-07 - On 2021-01-10 by John B. Lockett

Reply by (mod) - our Lennox Manual Downloads are Free at InspectApedia.com

John

All of the manuals we can find and list for our readers such as those on the page above are provided as free PDF downloads.

We do not sell anything. No products, no services. InspectAPedia.com provides building and environmental diagnostic and repair information. In order to absolutely assure our readers that we write and report without bias we do not sell any products nor do we have any business or financial relationships that could create such conflicts of interest.

In the list of manuals above we show

Lennox G60 DF(X) Series Gas Furnace INSTALLATION INSTRUCTIONS [PDF] (05/2009)
and
Lennox G60DFV(X) Gas Furnace Manual, 2002, #504.577M

as live links. Please take a look at those and let me know if either of those works for you.

Need a manual for a Lennox gas furnace model # G81-65-82M

I am unable to locate a manual for a Lennox gas furnace model # G81-65-82M. Could you help please? I'd like both an installation and service manual please. Thanks! - 2019-01-08 by Anonymous

Reply by (mod) -

Anon

I've added what I could find for the Lennox G81 gas furnace to our collection - above on this page.

including wiring diagrams & a few pages

You may need to clear your browser cache to see the new page

Electric heating elements in our Lennox Elite Series 29 Furnace are not coming on

I have a Lennox Elite series 29, blower comes on but heater doesnt and I have continuity on all four heating elements. any idea whats wrong - Mark 10.28/12

Reply:

If you don't have the troubleshooting manual for your furnace, check out

Lennox ELITE ECB29 SERIES UNITS ELECTRIC HEAT SECTIONS IO MANUAL [PDF] (2019) [At Lennox Website]

or see our complete collection of

LENNOX HVAC MANUALS & PARTS GUIDES and download the IO / troubleshooting guide for your Lennox Elite electric heater.

More help is at ELECTRIC FURNACES

The home page for this topic is at ELECTRIC HEAT.

What's the age of my Lennox

whats the age of my lennox g8-110t-1a - On 2016-06-08 by trevor -

Reply by (mod)

Try the Lennox age decoding guide above on this page and ask for more help if you need it.

 

Lenox J-533723 Oil Furnace Won't Keep Running

The furnace was not working. They came and pushed the reset button, cleaned it and replaced a copper wire that brings the oil to the furnace.

It worked for a few weeks and has shut down again. I have pushed the reset button but the furnace will not remain working for more than 15 seconds.

The person cleaning it has never seen this type of older furnace before and I do not have confidence that he will fix it if I use his service again.

Any suggestions? It is a Lenox J-533723, Burner OHP31-10 with a model number of OF7-189S. On 2016-01-17 by Paulette

by (mod) -

It sounds as if sludge or water in your heating oil tank may be clogging the oil line between tank and oil burner or clogging the oil filter or oil burner nozzle.

Ask your heating service company manager to send an experienced heating service tech to help you find the underlying cause for repeated loss of heat at your Goodman furnace.

If the problem is a lot of sludge in the oil tank there are several solutions such as taking oil from the top of the tank rather than its bottom, to avoid picking up sludge; IF that's the trouble, ultimately you may need to replace the oil tank.

Watch out: do NOT keep pressing thsat reset button. Doing so can cause a dangerous puffback explosion.

How to Replace a Lennox Model G12D2-82-3 fan and limit control part # 38619.

I am replacing a Lennox Model G12D2-82-3 ,fan and limit control part # 38619. All the replacement ones do not have wire connection prongs on the bottom.

These wires hook to the gas control box.

I have been trying to find a diagram for this fan and limit control to see what the wires do, but unsuccessful so far. Will this be okay or is there something else I should do? Or am I just out of luck? Any info is appreciated. On 2018-11-01 by Mike

Reply by (mod) -

Mike, The best Installation and Operation manual including wiring diagrams that I have at hand for

the Lennox G-12 SERIES FURNACE IO MANUAL

...

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