The 89M87 is the direct cross of 1082067 and 89M8701

When performing a Robertshaw 1751-025 installation

including R8222B1034

Operating on a 220-240V 50/60Hz power supply

Field Proven: The Maxitrol 325 Series is the industry benchmark for reliable gas pressure control and long-term durability

Reznor 214979 Ignition Board Refrigerant The 89M87 is the directThe Reznor 214979 Ignition Board is a critical direct spark ignition (DSI) controller engineered for precise gas fired combustion management in industrial and commercial heating systems. As the primary furnace control board for high efficiency models like the Reznor UDAP, UDAS, and PDH series, this OEM DSI integrated control regulates the entire startup sequence, including inducer motor verification via the pressure switch and timed gas valve