breaking both sides of the line for safer operation

While it is an SPDT relay

For technicians performing furnace relay troubleshooting

proportional flow adjustment based on actual room temperature

Robertshaw 780-845 Ignition Module 30067439-890 breaking both sides of theThe Robertshaw 780 845 Ignition Module is a veteran standard intermittent pilot ignition control engineered for reliability in gas fired heating systems. Designed as a versatile SP845 factory model, this 24V AC unit features solid state logic and flame rectification for precise automatic sequencing. It serves as the direct replacement for 100 00831 05 and 9004426105, effectively consolidating truck stock for service contractors. The module delivers 4