Identify and maintain your HVAC system

The model number is typically found on a metal rating plate attached to the unit. For outdoor condensers, check the side panel. For furnaces, look inside the front panel or on the side. For air handlers, check the access panel. The plate contains the model number, serial number, and key specifications. Scan My HVAC can identify your equipment even from a photo of the entire unit.

SEER (Seasonal Energy Efficiency Ratio) measures air conditioner and heat pump cooling efficiency. It's calculated by dividing cooling output by energy input over a typical cooling season. Higher SEER means lower energy bills. Minimum SEER is 14 for most regions (15 in southern states). High-efficiency units reach 20-26 SEER. A unit with 20 SEER uses about 30% less energy than a 14 SEER unit.

Lifespan varies by equipment type and maintenance. Air conditioners and heat pumps typically last 15-20 years. Gas furnaces can last 15-30 years. Boilers often exceed 20 years. Factors affecting longevity include usage patterns, maintenance frequency, installation quality, and local climate. Regular filter changes and annual professional maintenance can significantly extend equipment life.

R-22 (Freon) was phased out in 2020 due to ozone depletion concerns. R-410A (Puron) is the current standard, operating at higher pressures and offering better efficiency. If your unit uses R-22, repairs requiring refrigerant will be expensive as R-22 supplies are limited. Units manufactured after 2010 use R-410A. Scan My HVAC identifies refrigerant type to help you understand repair implications.

HVAC sizing is measured in tons (1 ton = 12,000 BTU/hour). Proper sizing requires a Manual J calculation considering square footage, climate, insulation, windows, and more. Rough estimate: 1 ton per 400-600 sq ft in moderate climates. Oversized units cycle too frequently; undersized units run constantly. Both waste energy and reduce comfort. Always have a professional perform load calculations.

Standard 1" filters: every 1-3 months. 4" media filters: every 6-12 months. Factors requiring more frequent changes: pets, allergies, dusty environments, or heavy use. A dirty filter restricts airflow, forcing your system to work harder, increasing energy bills, and potentially causing damage. Check filters monthly and replace when visibly dirty.

Scan My HVAC identifies equipment from all major manufacturers including Carrier, Trane, Lennox, Rheem, Goodman, Daikin, York, Bryant, American Standard, Ruud, Amana, Coleman, Heil, Tempstar, Luxaire, Mitsubishi, Fujitsu, LG, Samsung, and many more. Our database covers both residential and light commercial equipment from current and legacy product lines.

The full report provides detailed specifications, efficiency ratings, refrigerant type, known issues for your specific model, and maintenance recommendations. This information helps you make informed decisions about repairs, maintenance, and replacement. For HVAC technicians, it saves time researching specs on service calls. For homeowners, it provides clarity when discussing options with contractors.