IQ Boiler Control

can display

(typical)

Standby

Thermostat Calls

for Heat

Self Testing

Circulator Output

Energizes

Limits Closed Checked

Waiting For

Damper To Close

Vent Damper Energized

Waiting For

Damper to Open

Ignition Source Energized

Pilot Gas On

Trial For Ignition

Pilot Flame

Proven

Ignition Source Off

Main Gas On

Call For Heat Ends

Main Gas Off

Vent Damper De-Energized

Circulator Output De-Energized

Standby

Pilot Flame

Continuous

Not Proven

Retry

 

 

Ignition Source Off

Pilot Gas Off

Delay 60 Seconds

Figure 3: Sequence of Operation



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Image 5
Burnham 1099-01R1-/10 manual Sequence of Operation