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75" WC for precise atmospheric pressure monitoring in high-efficiency furnaces
a professional-grade white plastic thermostat cover engineered for horizontal mounting applications
Excessive amperage draw from damaged heating elements or high resistance at the terminals often leads to pitted contacts or a burnt-out bi-metal heater
and Arcoaire units
Weil McLain 511-624-401 Pressure Switch Els PW 17895 75" WC for precise atmosphericThe Weil McLain 511 624 401 Pressure Switch is a critical safety component designed specifically for high efficiency gas boilers, including the Weil McLain CGi 25 and CGi 3 series. As an OEM air pressure switch, it is factory calibrated to a precise 1. 79" WC (water column) set point to monitor the pressure differential created by the inducer blower. This SPST (Single Pole Single Throw) switch remains normally open and closes only when the system
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