Resideo R24AA1008 Heat Sequencer 320788-704 providing superior resistance to corrosion

providing superior resistance to corrosion and rapid thermal response

Genuine York replacement part ensures exact fit and manufacturer-spec reliability

Can this be used with diaphragm valves

making it immune to humidity-related failures and thermal shock

this SPST disc-style switch provides reliable circuit interruption when system temperatures exceed safe operating thresholds

Resideo R24AA1008 Heat Sequencer 320788-704 providing superior resistance to corrosionThe Resideo R24AA1008 Heat Sequencer is a field proven, solid state solution for managing heating element staging in electric furnaces, heat pumps, and air handlers. Engineered with a positive temperature coefficient (PTC) heater, this single switch sequencer ensures staggered activation to mitigate high inrush currents and prevent circuit overload. For crews on the job, the universal heat sequencer replacement design is a significant advantage, as it