That is a 3 ton air handler with 10 kw heat strips.
Do a GOOGLE search of the model #. I found it is a 9 SEER package unit, circa 2000. Goodman also made it under the Janitrol and Kenmore names.
N2A318GKA100 The 18 in the model number represents 18,000 BTU's or 1.5 tons.
The tonnage for a Heil air conditioner model # ACS030a2c1 is 2.5 tons. The 30 in the model number indicates that the air conditioner is 30K BTU's which makes it 2.5 tons.
The Carrier air conditioner model number 24ABR342 typically indicates a 3-ton system. The "342" in the model number suggests a cooling capacity of approximately 36,000 BTUs, which corresponds to the 3-ton rating. Carrier's model numbers usually follow this pattern to indicate the size and specifications of the unit.
What is the day and night air conditioner model number 561aj036-a tonnage?
Serial # tells you the year of manufacture not the model #.
it depends on the size of the system, this info is usually on the name tag, where you'll also find model and serial numbers.
The Goodman air conditioner model number GSC130241AB has a tonnage of 2 tons. The model number indicates this, as the "24" in the model signifies a cooling capacity of 24,000 BTUs, which is equivalent to 2 tons.
Goodman
Four
1999
Luxaire