Resideo R24DB4005 Heat Sequencer 318172-701 The double-split barrel ensures a

The double-split barrel ensures a secure

Pressure Limit Protection: The ZP thermostatic charge provides a Maximum Operating Pressure (MOP) feature to protect the motor from overloading during startup

Confirm that your existing unit lists part number 621892 or M0108602R on the motor nameplate or in the manufacturer's parts list for Nordyne

This specific switching logic ensures the induced draft motor is pulling the required vacuum through the heat exchanger

Resideo R24DB4005 Heat Sequencer 318172-701 The double-split barrel ensures aThe Resideo R24DB4005 Heat Sequencer is a heavy duty, solid state solution designed for staged electric heat applications. Engineered for multi stage furnaces and air handlers, this sequencer utilizes Positive Temperature Coefficient (PTC) heaters to provide precise, reliable timing across four integrated switches. With a 24Vac input voltage, it manages high current loads with a 25 Amp resistive contact rating and a 14 Amp inductive rating at 120Vac,