Robertshaw 780-502 24V Direct Spark Ignition Module DS845 Control

The Robertshaw 780-502 is a 24V direct spark ignition (DSI) control module, also called a direct spark ignition control or ignition control board. It belongs to the Robertshaw 780 Series Direct Spark Controls. When the thermostat or switch calls for heat, the control opens the gas valve and supplies a spark to the electrode to light the burner.

Key Features:

• Rated for 24 VAC
• Series application: DS 845, 24V direct spark ignition
• Non-pre-purge, enclosed design
• 4-second valve trial time
• 1 ignition attempt before lockout
• Replaces one-rod and/or two-rod systems
• Comes with complete installation instructions

The module cuts off gas to the main burner when the thermostat is satisfied. This helps one control stand in for several older direct spark control styles.