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System Efficiency: Restores the factory-rated airflow and combustion seal to protect heat exchangers from localized overheating
25A Fixed Threshold: Ensures sensitive detection of status for low-draw equipment and failing belt drives
Durable Mounting: Includes flanged head screws and a low-profile housing designed for outdoor environment exposure and north-face installation
this furnace relay S1-024-11772-700 is the primary diagnostic check for continuity
Robertshaw 780U-DS20 Ignition Module Refrigerant System Efficiency: Restores the factory-ratedRobertshaw 780U DS20 is a universal direct spark ignition (DSI) control module designed for gas fired HVAC equipment, including furnaces, boilers, and rooftop units. This ignition control is used to safely manage burner ignition sequences by providing timed spark ignition and flame sensing for reliable system startup and operation. The module is commonly used as a replacement ignition control in systems requiring a universal solution for direct spark
US$ 110.90
US$ 27.95
US$ 157.23