Technicians should use a heat sink or wet rag on the valve body during installation to protect the internal diaphragm and seals from excessive heat transfer during the brazing of the solder connection

Compatibility is based on the specific coil and condenser match-up

20" PF rating ensures the furnace operates within the manufacturer's tight safety tolerances

while commonly used in natural gas boiler configurations

R-22 or R-410A) used in the system

Lennox 21703 Wheel 30067439-890 Technicians should use a heatWhen you are dealing with a critical airflow issue in a high capacity system, the Lennox 21703 Blower Wheel is the direct OEM replacement fan wheel engineered to restore factory spec HVAC performance. This double inlet centrifugal wheel features a precise 12 5 8 inch diameter and 12 5 8 inch width, designed specifically for a 5 8 inch bore shaft. Constructed from heavy duty galvanized steel, this forward curved blower wheel is built to handle the