or burners into the control circuit

Engineered for 208/240V coil systems

though technical documentation indicates it is designed for compatibility with specific OEM fan rotations found in 21 frame configurations

Key Benefits: Optimized Contaminant Control: High-efficiency removal of moisture

maintaining structural rigidity under varying pressure conditions

Lochinvar & A.O. Smith 100112849 Switch 322056-301 or burners into the controlThe Lochinvar & A. O. Smith 100112849 Air Pressure Switch is a critical safety and operational component designed for high efficiency commercial water heaters and boilers, including the GWH 1200 and GWH 1250 Series 600 models. This normally closed (NC) switch is factory calibrated to a 0. 68" water column (w. c.) set point, ensuring the combustion fan is generating sufficient static pressure before allowing the ignition sequence to proceed. As a