Resideo R24AA2006 Heat Sequencer 326010-701 normally closed valves require power

normally closed valves require power to open

supporting stable performance under constant tension

and air handling units managed by building automation systems

If you observe an uneven or "lazy" yellow flame instead of a crisp blue cone

When the aquastat or primary control fails

Resideo R24AA2006 Heat Sequencer 326010-701 normally closed valves require powerMaximize the efficiency of your staged heating setups with the Resideo R24AA2006 Heat Sequencer. Engineered specifically for HVAC heat pump air handlers and electric furnaces, this 24VAC heat sequencer manages the timed activation of heating elements to prevent localized grid overload and minimize the initial cold air blast during system startup. As a single pole double throw (SPDT) model, it provides the precise switching required for multi stage