Just called York. I have this model, however York needed the serial number to find the SEER. Can a model have more than one SEER? I doubt it. My SEER for this model is 13.
13 seer, 3 ton
Model number of indoor and outdoor unit needed to compile SEER rating.
13
The SEER is 10 (http://www.ehow.com/how_7590098_do-number-tseries-air-conditioner.html )
The Tempstar AC model NXA636GKA100 number is a quality air conditioning unit. The tonnage number refers to the amount or unit of cooling and the seer number is for the efficiency. This model has different unit numbers to determine the tonnage and seer numbers.
The EDM4X36FA2 is a Nordyne furnace. The company no longer offers online support for this model, so the seer rating is not available. You can contact Nordyne directly for information.
13 SEER 3.5 Tons.
10 SEER
12 seer
Based on typical naming conventions - 36 - in the model number indicates 36,000 btuh nominal or 3 tons. And depending on indoor match likely a 13 SEER.
10 SEER