Arcing is a primary cause of premature contact wear and circuit failure

the MDM-Z is a direct replacement motor for ZoneFirst ZDM

low-noise performance

Durable Construction: High-quality metal housing stands up to the vibration and pressure fluctuations of demanding commercial HVAC maintenance

Resideo S8701A1034 Ignition Module 318518-761 Arcing is a primary causeResideo S8701A1034 is a direct spark ignition (DSI) module featuring an 11 second trial for ignition and a 30 second pre purge cycle, designed for gas fired HVAC equipment including furnaces, boilers, and rooftop units. It manages burner startup by initiating a pre purge sequence to clear the combustion chamber before ignition, then provides spark ignition and flame verification for safe operation. This ignition control is commonly used as a