The Honeywell S89F Direct Spark Ignition Control Modules control the ignition sequence and gas control operation in direct spark systems used primarily on gas-fired atmospheric and power burners in residential furnaces and heating appliances.

Features:

• •Requires separate 120 Vac spark generator.
• •S89E has 10-second maximum delay for safe start check before ignition.
• •S89F has 38-second maximum delay for safe start check plus valve on delay before ignition.
• •Available with 4 or 11 second (nominal) lockout timing.
• •100 percent shutoff for use with all heating gases.
• •Ambient temperature rating is -40°F to +175°F (-40°C to +80°C).
• •Separate electrodes for spark ignition and flame sensing.
• •Uses Honeywell or any other 2A or less dual valve combination gas control designed for Direct Spark Ignition (DSI) applications.
• •Locks out system after trial for ignition if main burner fails to ignite.
• •Flame rectification principle used to monitor flame; false flame signals resulting from short to ground results in safety shutdown.
• •After safety shutdown, S89E and F can be reset from the thermostat.