Armstrong 49W66 Furnace Direct Spark Ignition Control

Armstrong 49W66 Furnace Direct Spark Ignition Control delivers reliable performance for your heating system. This direct spark ignition control powers your furnace with a 24 Volt AC supply and uses a Rajah transformer for a strong, consistent spark every cycle. With an 8-second ignition trial time and a 30-second prepurge, it ensures safe, efficient startup across a wide operating range, even in extreme temperatures (-40 to 176 deg F). Built as a durable furnace control module, it fits standard installations and supports reliable ignition timing in modern HVAC setups.

• Application: Furnace
• Type: Direct Spark Ignition Control
• Ignition Trial Time: 8 seconds
• Prepurge Time: 30 seconds
• Voltage Rating: 24 Volt AC
• Frequency: 50/60 Hertz
• Current Rating: 250 milliamp
• Spark Transformer Type: Rajah Terminal
• Housing Color: Black
• Dimensions: 4.18 inch width x 5.18 inch height
• Temperature Rating: -40 to 176 deg F