Description
Microprocessor-based integrated burner control for automatically fired gas, oil, coal or combination fuel single burner applications. Provides safety, functional capability and features beyond conventional controls.
Features
Functions include purge, burner pilot startup, flame supervision, system status indication, system or self diagnosis and troubleshooting.
Delays admission of fuel to combustion chamber until pilot flame has been proven and then monitors the flame through the run period while providing system status indication.
Includes Keyboard Display Module.
Five LEDs provide sequence information.
Intermittent pilot valve.
Interchangeable plug-in flame amplifier.
Access for external electrical voltage checks.
Nonvolatile memory retains history files and lockout status after loss of power.
Selectable pilot flame establishing period.
Provides application flexibility and optional communication interface capability.
Compatible with existing Honeywell flame detectors.
Specifications
Application Semi Automatic Programming Control
Flame Establishing Period – Pilot 4 sec or 10 sec
Flame Establishing Period – Main 10 sec or Intermittent
Interlocks Lockout
Preignition Yes
PrePurge Determined by ST7800A Purge Timer Card
Required Components Q7800A,B Universal Wiring Subbases. R7847, R7848, R7849, R7851, R7852, R7861, or R7886 Flame Signal Amplifier. ST7800A Plug-in Purge Timer Card.
Voltage 120 Vac (+10, -15%)
Frequency 50 Hz
Frequency 60 Hz (±10%)
Pilot Type interrupted
Vibration 0.5 G environment
Early Spark Termination Yes, 5 sec
Ambient Temperature Range (F) -40 F to +140 F
Ambient Temperature Range (C) -40 C to +60 C
Dimensions (in.) 5 in. wide x 5 in. high x 5 1/4 in. deep with Q7800A Subbase x 6 3/32 in. deep with Q7800B Subbase
Dimensions (mm) 127 mm wide x 127 mm high x 133 mm deep with Q7800A Subbase x 155 mm deep with Q7800B Subbase
Weight (lb) 1 lb 10 oz
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