SKU: 52422109441
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Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
Common Questions Is the J993MDA-2 compatible with LP gas systems
While this kit handles the standard fuel conversion
including specific Reznor unit heaters
In total darkness
The Watts 0274934
Reznor 123974 Fan Switch Els PW 17895 Common Questions Is the J993MDA-2The Reznor 123974 Fan Switch is a precise thermal control engineered for gas fired unit heaters and duct furnaces. Designed to manage blower cycles based on internal heat exchanger temperatures, this F135 30F fan control ensures the fan engages when the plenum reaches 135F and terminates operation once it cools to 105F (30F differential). As a direct replacement for part 48706, it maintains the critical timing required to prevent heat exchanger stress
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