How did homes stay cool in Florida before air conditioning? The date of production/manufacture or age of Goodman Manufacturing® brand HVAC equipment can be determined from the serial number located on the data plate. FROM MODEL # – Air conditioning equipment capacity from model number. Air conditioning unit sizes are measured in tonnage as well as BTU (British Thermal Unit) per hour. This is generally found slightly above the refrigerant valves on the back side of the unit.
Go outside to the condensing unit and look for a data plate mounted to the side. Just like the nominal size of lumber or an air conditioning filter, the exact cooling capacity may be a little more or less than the nominal rating, but it’s close. The model number is where you can find the size of AC you’re looking for.
What's wrong? The easiest place to find AC tonnage is on the AC unit itself. You can determine the “nominal” condenser tonnage of your HVAC system by examining the model number on the data plate at the side of the condenser (outdoor unit).
There isn’t a universal model number decoder since AC manufacturers uses different codes but the model number can tell you the capacity, tonnage, single/variable speed, voltage, refrigerant type, and brand name. Not all manufacturers do this, but most will give you a 2 or 3 digit section that tells you how many thousands of BTU/hour your air conditioner can move out of your home. Go outside to the condensing unit and look for a data plate mounted to the side. Where is the air filter for my central air conditioner and furnace? My air conditioner won't turn on. Make sure you use RLA and not LRA, Locked Rotor Amperage, which is the surge of amps necessary to overcome inertia and start the system. © McGarry and Madsen, And to find out the age of another brand of air conditioner or heat pump, go to, page for other related blog posts on this subject, or go to the.
How can I find out the size of my air conditioner? The model number includes the nominal cooling capacity in three digits beginning with zero.
That is the capacity in 1000`s of btu. This is generally found slightly above the refrigerant valves on the back side of the unit.
Goodman air conditioning unit tonnage can be determined by the unit's model number. This number is located on a plate attached to the back of the unit, near the power supply and coolant lines. How can I find out the SEER of my air conditioner? For example, “048” indicates 48,000 BTUs. A ton of air conditioning equals 12,000 BTU, and 48 divided by 12 equals 4, so the data plate below indicates the system is 4 tons. It will be a number divisible by 6 or 12, and represents the nominal BTU of the system in thousands. General Directions: (1) Locate the model number your researching. 24 = 2 tons. • What is wrong with an air conditioner when the air flow out of the vents is low? The model number includes the nominal cooling capacity in three digits beginning with zero. The label/tag has faded all I have on file is the model number and the serial number, make. And this is another one that is rated at 2.5 tons. How can I tell whether the condenser (outdoor unit) is an air conditioner or heat pump? What are the most common problems with wall/window air conditioners? • What are the most common problems with wall/window air conditioners?
Here’s a rundown of the range you will encounter: 18 = 1.5 tons, 24 = 2 tons, 30 - 2.5 tons, 36 = 3 tons, 42 = 3.5 tons, 48 = 4 tons, and 60 = 5 tons. Up near the top of the label, you see the model number (M/N) and serial number (S/N). What's wrong? • Why has the thermostat screen gone blank? Divide the number by 12 (which represents 12,000 Btu/hr, or one ton of cooling capacity) to get your AC unit’s tonnage.