Replacement circuit board for radiant tube heaters without a flame rod. Used on Model Numbers beginning with DTH(S)-3, DRV, DBS, and DX (w/direct sense). Circuit board model number will read “Mark 17DX-117”.
Requires additional part, TP-390 adapter, sold separately. CLICK HERE to view the product page.
CLICK HERE to confirm parts for your heater using the Model and Serial Numbers.
CLICK HERE for installation instructions.
