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meaning it will reset (close) when the temperature drops to 120°F
ensuring it can handle the inductive inrush of ventilation fans and small motor loads without failure
this motor is the primary mechanical component responsible for clearing flue gases from the heat exchanger and ensuring the pressure switch closes to initiate the ignition sequence
including SC
IO Hvac Controls iO-WWR480 Relay Els PW 17895 meaning it will reset (close)The iO WWR480 Warning Watchdog is a professional grade voltage monitoring relay engineered specifically for 440 480V commercial HVAC units. Designed to be installed directly within the service compartment of a condensing unit, this SPDT relay provides critical protection for the compressor contactor by monitoring incoming power quality. As a veteran technician knows, phase imbalances and voltage spikes in 480V systems are leading causes of premature
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