LENNOX G40UH(X) UNIT INFORMATION Pdf Download (2024)

FAQs

How do I know what tonnage my Lennox unit is? ›

You may find the answer on your current unit. Find your condensing unit and search for a data plaque or sticker on the side. You should see a model number and a string of numerals and letters. There should also be an even, two-digit number – which indicates the AC tonnage of the unit.

The primary limit G40UH(X) units is located in the heating vestibule panel. The secondary limit is located in the blower compartment in the back side of the blower housing.

The model is identified by a "model number" which is stamped on the unit nameplate or rating plate. On residential gas and oil furnaces this identification plate is located on the inside of cabinet near the vestibule panel. On other Lennox products the plate is mounted on the outside of unit.

The size of your Lennox Air Conditioner can be determined from the model number of the unit. The model number (M/N) can be located outside on the panel along with the serial number. For Example: A unit with a model number of 10ACB42-1P lists the unit's capacity that it provides to the living space.

Simply divide the BTUs by 12,000 to calculate the tonnage of your unit. For example, if your air conditioner is 36,000 BTUs, you have a 3 ton unit. Some manufacturers bury tonnage or BTU information in their model numbers. Look for an even, two-digit number between 18 and 60.

Modern Lennox system serial numbers contain 4 numbers followed by a letter. The first 2 numbers represent the factory where they were manufactured, the second 2 numbers are the year and the letter is the month where A is January, B is February, etc. An example would be 5800A12345.

Examine your furnace and look for a raised button or switch to the right of the ignition control box (or the “ Lennox limit switch reset"). Press and release the limit control switch to rest your Lennox furnace.

A furnace limit switch is a component of a forced-air furnace that is responsible for turning on the furnace blower once the desired heat has been met inside the furnace. Without a functioning furnace limit switch, a furnace would not be able to regulate the temperature in conjunction with a thermostat.

Signs of a faulty furnace limit switch include the furnace not turning on or off, inconsistent temperature control, or overheating. If you suspect a malfunctioning limit switch, there are troubleshooting steps you can take. First, check if the switch is stuck or dirty and clean it if necessary.

How long does Lennox air conditioner last? Air conditioners and heat pumps last an average of 10 to 15 years, while furnaces have a life span of around 15 to 20 years.

What is the lawsuit against Lennox air conditioner coils? ›

What is this lawsuit about? The Plaintiffs claim that Lennox manufactures and sells air conditioning systems and heat pump systems, including air handlers and Packaged Units, containing defective evaporator coils that corrode and leak refrigerant.

Lennox Products. Like many companies, Lennox divides its products into three series: Signature, Elite, and Merit. The Dave Lennox Signature Collection series features its most energy-efficient models and incorporates its latest technologies. Not surprisingly, these are Lennox's most expensive units.

Energy Efficiency

In a head-to-head comparison of Trane vs. Lennox, Lennox wins in the energy efficiency category. Lennox units come in a range of SEER ratings from 13-28. That 13 SEER rating is being retired to comply with new minimum standards, but a rating of 28 is the best the industry has to offer.

If you are looking for a high-efficiency air conditioner, then you should look for a unit with a SEER rating of 17 or higher. However, if you are more concerned with unit affordability, then a SEER rating of 14 or 15 may be more suitable for you.

Lennox^® air conditioners are amongst the quietest and most energy efficient units on the market. Delivering perfectly precise comfort control, Lennox air conditioners continually make small adjustments in fan speed and cooling output to hold your temperature exactly where you want it.

To estimate your AC tonnage needs, multiply the number of square feet you're cooling times 25. This equals the total number of BTUs you need to adequately cool your space. Next, divide that number by 12,000 to determine the tonnage capability you need in your new air conditioning unit.

You may be able to determine the tonnage of your HVAC unit by simply reading the manufacturer's label on your system's outdoor unit. However, most manufacturers don't list tonnage and instead, list BTUs. Converting BTUs to tonnage can be done by simply dividing the BTUs by 12,000.

ML14XC1 - 1.5 to 5 Ton Air Conditioner / Page 5

Heavy gauge steel cabinet with five station metal wash process. Louvered heavy gauge steel panels surround unit on all four sides to prevent damage to the coil.