Description
The Resideo S89C1087/B HSI Control is designed to manage the ignition sequence of compatible gas-fired heating equipment. Its control circuitry energizes the igniter and coordinates flame-sensing during burner startup, while the 6-second lockout stops the ignition sequence when the required flame condition is not established within the specified period. The control connects to the igniter, flame sensor, gas valve, and equipment wiring in HVAC systems. This sequence provides controlled ignition and burner supervision. Proper operation supports orderly startup, flame establishment, and gas-valve control during normal heating cycles while providing the specified ignition safety response.
