Zero Minimum Differential: Reliable operation in gravity-fed or low-pressure systems with no minimum pressure requirement

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

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

By enabling seamless integration with field mounted devices

Flexible Mounting Options: Includes hardware for both flush and surface mounting to suit any mechanical room setup

Lennox 21703 Wheel 30067439-890 Zero Minimum Differential: Reliable operationWhen 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