Using a 120V source will result in insufficient secondary voltage for your control components

this component is specifically rated for 208/240V HVAC systems

one-handed actuator engagement

Durable Construction: Engineered to withstand high-cycle thermal stress in residential and light commercial units

maintaining the original engineering specifications of the unit

Lochinvar & A.O. Smith 100166258 Pressure Switch Els PW 17895 Using a 120V source willThe Lochinvar & A. O. Smith 100166258 Pressure Switch is a critical safety component designed for precise combustion air monitoring in high efficiency systems. This 1. 35"wc SPDT Pressure Switch functions as a pneumatic prover, ensuring the inducer fan generates sufficient static pressure before allowing the ignition sequence to proceed. As the verified OEM replacement for PRS3428 and PRS2428, this part maintains the original equipments narrow