Description
The Detroit Radiant TP-351A Circuit Board is an OEM-grade control module engineered to provide reliable and consistent operation for Detroit Radiant and Re-Verber-Ray infrared tube heaters equipped with remote flame sensing (flame rod). Sometimes referred to by its internal designation Mark17DU-117, this potted high-voltage ignition (HSI) circuit board coordinates critical burner functions — including ignition timing, flame detection, and safety interlock logic — to ensure safe and efficient heater performance. Designed for 120 V systems, the TP-351A is a direct replacement for worn or malfunctioning boards on compatible heater models and helps restore proper electrical control and system reliability.
Features:
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OEM Replacement Control Board – Built to Detroit Radiant’s factory specifications for exact fit and function.
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Mark17DU-117 Logic Module – Known internally as the Mark17DU-117, this board handles ignition and flame sensing sequences.
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120 V Operation – Designed for heaters with 120 VAC control power systems.
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Supports Remote Flame Sense – Works with flame rod (remote sense) configurations for accurate safety feedback.
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Potted Design for Durability – Sealed potted construction protects internal electronics in harsh heater environments.
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Restores Heater Control Functionality – Ideal part for maintenance and repair to regain proper ignition sequencing and safety interlock performance.
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Compatible with Multiple Heater Models – Used on Detroit Radiant series such as DX (remote sense), DX-2, XTS, LS, and others requiring the Mark17DU control board.






