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allowing for precise airflow adjustment in air handlers and furnaces
provided the connections are soldered and moisture-sealed to prevent resistance drift
You can use either part number for your repair without modifications
Its rugged gray finish and UL-listed/CSA-approved construction meet the strict requirements of field contractors looking for a durable replacement for older 11B18 series units or competitive aquastat controls
McDonnell & Miller 157-1 Replacement Casting Els PW 17895 allowing for precise airflow adjustmentThe McDonnell & Miller 157 1 Replacement Casting is a mission critical component for maintaining the structural integrity of Series 157 low water cut offs. As a heavy duty boiler water column casting, this unit serves as the primary float chamber for combination LWCO and pump controllers in high pressure steam applications. For technicians managing industrial or commercial systems, utilizing an authentic 157 1 body casting ensures precise alignment
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