EngA ENGINEERED AIR base - Page 25

base A
25
IOM74 November 2020 R105
Press Service Mode and set Service Override to 100%.
The burner will be enabled to prepurge and ignition. Allow the heat exchanger to warm up a few minutes.
From this point begin setup.
CAUTION
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Be aware of high discharge temperatures. High limit failure may occur.
Adjust regulator to achieve design manifold pressure.
Connect analyzer to flue.
Adjust the High Fire Air Offset value to achieve combustion values listed in the table in Appendix F.
Calculate and clock the high fire gas flow. Adjust regulator as required and re-clock.
Once set, follow the combustion setup sequence noted in Appendix G.
Use the air offset and gas offset to achieve the desired combustion values.
Once the above values have been confirmed and set, return to high fire and allow combustion levels to
stabilize. Set Service Override to low fire and observe combustion values to ensure clean combustion
throughout the operating range.
Press: Setup Complete.
Press to disable Service Mode.
Navigate to the Save Load tab and press Save Settings.
Combustion setup is now complete.
NOTICE
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The Tracking Okay light indicates the stroke time of the actuators are in sync, within 5%. If not
illuminated, one actuator is waiting for the other to catch up.