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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
This air pressure switch serves as a primary limit to prevent ignition during blocked vent conditions or gas furnace venting failures
and proportional pre-mixers where maintaining an outlet pressure close to atmospheric levels is non-negotiable
features a larger float chamber and is specifically designed for boilers with high steaming rates or surging water lines where additional buoyancy and stability are required for accurate switching
While ASCO valves are often versatile
Viessmann 7134747 Gas Valve 324846-701 This air pressure switch servesThe Viessmann 7134747 Gas Valve is a critical combustion control component engineered for high efficiency Vitodens 200 WB2 and WB2A series boilers. This OEM replacement gas valve is a 20V, normally closed (NC) two way solenoid valve designed to regulate the flow of natural gas or liquid propane to the burner assembly. Identified by the R10 designation, this valve features a precise 10 ohm internal resistance, ensuring exact signal communication with
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