ST9103A integrates control of burner and circulating fan operations in an oil furnace.

Features:

• Central appliance wiring point simplifies service
• Oil burner primary control
• Fixed or field-adjustable heat fan on delay
• Field adjustable heat fan off delay
• Controls two speed circulating fan
• Used with: A single circuit board providing combustion air blower control, two speed circulating air blower control, oil primary control, limit circuit inputs, thermostat wiring terminations, & a central appliance wiring point for an oil fixed furnace.