FROM MODEL # – Air conditioning equipment capacity from model number. Buy Goodman CKL49-1 (Item No. Second two = month. Air conditioning equipment age from serial number for the example above, the equipment was made after 1980. **GOODMAN – AMANA – JANITROL – AMERICAN STANDARD - ** First two digits of the serial number = year. Goodman: First two digits of the serial number are the year. The Goodman ARUF series is our biggest seller due to an unbeatable combination of high performance and low cost. First two numbers are the year Second two numbers are the week made. Table G.7 Goodman Model Number Description7 GMNT 040 3 Unit Type Input Capacity (Btu/h) Nominal Cooling Capacity (tons) GMNT = Multi-position gas furnace 040 = 40,000 Btu/h 060 = 60,000 Btu/h 080 = 80,000 Btu/h 100 = 100,000 Btu/h 120 = 120,000 Btu/h 3 = 3 tons 4 = 4 tons 5 = 5 tons Table G.8 ICP Model Number Description8 Goodman Ac Serial Number Age Chart Printable The first four digits of the serial number are week and year of manufacture, in this case, week 13 of 1989. Since Goodman purchased Amana in the nineties, the same methods for decoding serial numbers can be applied to both brands. Meet the Experts. Goodman + Nest thermostat E - Warranty Certificate *Amana uses the industry leader in homeowner reviews, BazaarVoice, to administer and validate the reviews you see on the website. Second two are the month. Table 7.2.4 Goodman Model Number Description GMNT 040 3 Unit Type Input Capacity (Btu/h) Nominal Cooling Capacity (tons) GMNT = Multi-position gas furnace 040 = 40,000 Btu/h 3 = 3 tons Table 7.2.5 Lennox Model Number Description G 40 UH 24 A 045 X Unit Type Series Configuration Nominal Add-On Cooling Capacity Cabinet Width Btu rating is model number..ie; GMP075-3 (75,000 bonnet input) Compressor is same :serial # 9709088872 (yr1997 wk 09) Tonnage is model # CK361C The first two numbers after the CK (letters) divided by 12 is tons. This means reviews are directly from homeowners, with checks to prevent fabrication, modification, or fraudulent activities. GMP075-3. Example 0426 26th week of 2004. 161) 4 Ton, 10 SEER. Compressor: serial # 9709088872 (yr1997 wk 09) Tonnage is model # CK361C The first two numbers after the CK Can someone give me a link to a page that shows a breakdown of Goodman furnace serial #'s. The SmartFrame™ rust-resistant, fully insulated steel cabinet features a coil mounting track, allowing you to easily configure the unit for horizontal or vertical, upflow or downflow installations. The first four digits of the serial number are week and year of manufacture, in this case, week 13 of 1989. Goodman a/c compressor model ck30-1a. The serial number is critical for determining a unit's precise age and date of manufacture, something the model number will only hint at. Btu rating is model number. How to tell the age of a Goodman furnace? This number is located on a plate attached to the back of the unit, near the power supply and coolant lines. Goodman air conditioning unit tonnage can be determined by the unit's model number. Goodman technical support information, product brochures and more. Goodman units go by serial number. ie: 36 div by 12= 3 tons. TECHNICAL REFERENCE GUIDE to manufacturer's model and serial number information for heating and cooling equipment, useful for determining the age of heating boilers, furnaces, water heaters is provided by Carson Dunlop Weldon & Associates (Carrier, Rheem, Goodman, Trane, etc…) Model Number, ... Air conditioning equipment age from serial number for the example above, the equipment was made after 1980.