HHT Dexen IPI control module for LP and NG units. Does NOT work with DSI, HSI, or standing pilots. Works with multiple Quadra-Fire, Heatilator, Heat N Glo, IHP, and Napoleon models. Check manufactures parts list for compatibility.
This is the OEM HHT part number 593-592.
Compatible with IHP part # H4674 and Napoleon part # W190-0022.
Fits :
QV36A-FB (Expression) QV-PIER-HV-IPI QV-ST-HV-IPI
593592
593-592