Common Questions What is the maximum inlet pressure for the 1/4" orifice in a 243 regulator

5 cable entry

Ensure your airflow path

316 stainless steel is a preferred material for general-purpose immersion and is widely used in water storage and pretreatment process washers

Can this be mounted over existing thermostats

Lochinvar & A.O. Smith 100166249 Pressure Switch Els PW 17895 Common Questions What is theThe Lochinvar & A. O. Smith 100166249 Pressure Switch is a critical safety component designed for high efficiency condensing boilers and water heaters. As a direct replacement for the obsolete PRS30030, this genuine OEM pressure switch ensures your equipment maintains proper combustion air proving and flue monitoring. Featuring a 1. 05" WC setpoint and a SPDT (Single Pole Double Throw) configuration, this switch provides the reliable electrical