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The heavy-duty SPDT switch configuration ensures seamless integration with standard burner primary controls and zone valves
Field-Adjustable Sequencing: Features an internal dial to set the 2/7 degree differential between stages
For water applications
This allows for secure attachment to junction boxes or direct mounting within control panels
Nordyne 624817R Control Board 321894-709 The heavy-duty SPDT switch configurationThe Nordyne 624817R Control Board is a critical OEM replacement component engineered for integrated furnace control within high efficiency gas fired heating systems. As a veteran grade integrated furnace control board, it manages the full ignition sequence, including precise timing for the hot surface ignitor (HSI) and continuous flame sensing to ensure safe combustion. Designed to withstand the thermal stresses of residential and light commercial
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