See a diagram that guides you through checking sub-cooling. Download the Checking Sub-Cooling for AC & Heat Pumps
Reference Guide in
See a diagram that helps explain checking superheat. Download the
Checking Superheat for AC & Heat Pumps Reference Guide.
Get information on refrigerant temperatures in this useful chart. Download the
Pressure Temperature Chart Reference Guide.
Ensure your R-22 system runs at peak performance. Download the:
Keep your R-22 System Running Longer Reference Guide.
Troubleshoot common problems affecting your compressor/condensers. Download the
Compressor/Condenser Trouble Shooting Reference Guide.
Learn how to replace an R-22 air conditioner with a 13 SEER or 14 SEER R-410A air conditioner using an existing R-22
indoor unit. Download Procedures on
How To Change R-22 Systems To R-410A Systems Using Same Indoor Coils.
Learn how to install and service heat pumps. Download the
Heat Pump Installation Service Reference Guide.