Description
The Packard HS24A343 DPST Heat Sequencer is an electrical timer used to control staged activation of heating elements and fan circuits through delayed switching contacts. It operates by sequencing multiple circuit stages at set intervals to manage load distribution during startup and shutdown cycles. In HVAC systems, it is used in electric furnaces and air handling units where heating elements require controlled energizing in steps to avoid sudden electrical load changes. The sequencer coordinates fan motor and heater bank operation across defined time delays, ensuring orderly progression of heating cycles within system assemblies.
