Dwyer Instruments 475-1-FM Manometer 318172-701 The Reznor 112753 High Limit
Baker’s notes & crumb story
Description
Dwyer Instruments 475 1 FM Manometer 318172 701 The Reznor 112753 High Limit The Reznor 112753 High Limit Switch is a critical safety component designed for precise thermal regulation in Reznor unit heaters A normally closed (N C) valve like the 8210G054 stays shut to block flow until electrical power is applied to the coil