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Its robust design is optimized for high-demand environments
It features the same 1/4" quick-connect terminals and mounting footprint
While the dimensions are similar
ensuring reliable pull-in across both voltage standards common in commercial HVAC systems
White-Rodgers 21V51U-843 HSI Kit Els PW 17895 Its robust design is optimizedThe White Rodgers 21V51U 843 is a professional grade Universal 2 Stage Integrated Furnace Control Kit designed for high efficiency systems utilizing a variable speed ECM blower motor. This comprehensive HSI ignition control solution replaces over 40 existing White Rodgers models, including the 50V51 XXX and 50V61 XXX series. It features a 16 pin interface for precise ECM motor control and includes a 120V nitride ignitor to upgrade older 80V silicon
US$ 119.00
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US$ 79.95
US$ 1595.00
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