Installation Efficiency: Pre-stripped 42-inch leads allow for rapid HVAC electrical repair and cleaner cable management within the control box

Ensure the door surface is free of old debris and carbon buildup before installing the new high-temp insulation to achieve a proper airtight seal

OEM Compatibility: Direct fit for multiple Weil McLain gas-fired water and steam boiler series including CG

or blocked return air grilles

check the spark gap distance against factory specs

Johnson Controls P74FA-1 Pressure Control Els PW 29614 Installation Efficiency: Pre-stripped 42-inch leadsThe Johnson Controls P74FA 1 is a professional grade differential pressure control designed for precise monitoring of pressure variations between two sensing points. This heavy duty SPDT snap acting switch is a standard for contractors managing chillers, water cooled condensers, and heating coils where proof of flow is critical for system protection. Engineered with durable brass bellows, the unit handles non corrosive refrigerants, air, and liquids