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the internal coil has likely failed and the unit needs replacement
Direct Compatibility: Engineered specifically for Reznor UDAP and UDAS units
This dual-stage assembly features precise calibration with a 0
ensuring the safety pilot stays energized under consistent thermal load
Concealed Mounting Capability: Ideal for secure
Schneider Electric (Barber Colman) AT-1104 Guard Els PW 17895 the internal coil has likelyThe Schneider Electric AT 1104 is a heavy duty cast aluminum thermostat guard designed to protect wall mounted controls in high traffic commercial or industrial environments. Built with a steel base plate for rigid mounting, this guard prevents physical damage and unauthorized setpoint adjustment, a critical requirement for maintaining HVAC system efficiency. With internal dimensions of 4 1 4" H x 3 1 2" W x 1 5 8" D, the AT 1104 is specifically