This differential air pressure switch is frequently used in Reznor LDAP series heaters and other gas-fired unit heaters

This kit is a direct replacement for legacy Barber Colman 900-002 setups and is pressurized for compatibility with standard 20 psig supply air systems found in modern HVACR environments

Durable Ceramic Insulation: High-dielectric porcelain prevents voltage leaks to the ground

this normally closed assembly provides high-capacity flow with a CP body construction designed to minimize pressure drop

Fenwal 12-F27121-000-10 Mounting Head 326058-758 This differential air pressure switchThe Fenwal 12 F27121 000 10 Mounting Head is a high precision, vertical mount Detect A Fire thermal detector engineered for critical fire suppression and alarm circuits. Rated for 275 degrees F, this rate compensated detector utilizes a unique V Fast response time index to ensure rapid activation during fast growth fire events while effectively ignoring transient thermal gradients that cause false alarms in standard rate of rise units. The 300