Alarms - Greenheck DOAS v8.1 Reference Manual

Alarms

Alarm
IG no flame 3 try AL
IG combustion fan high
pressure switch failure
IG furnace ignition control
Pressure switch closed
with combustion fan off
Combustion fan not
proved
IG furnace max retry
IG High Temp AL
IG offline
IG Lg Man No Flame AL
The Alarms menu allows the user to view active alarms, reset active alarms and
view, clear or export the alarm history.
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If an alarm occurs, the button will glow red on the controller and the remote
display (if installed).
To view alarm, press the Alarm button once. This will display the most recent
alarm. If the alarm cannot be cleared, the cause of the alarm has not been fixed.
Press the up and down buttons to view any additional occurring alarms.
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eseT cTive larms
This screen allows the user to clear active alarms.
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larm venT isTory
This screen allows the user view recent alarms. To view all saved alarms, press
the "down" button to enter the data logger.
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lear larm og
This screen allows the user to clear all alarms in alarm log history.
IG Furnace Alarm (AL) Descriptions
Description
Indicates a furnace failure to light or properly sense flame after
3 trials.
Indicates a call for high speed combustion fan but high pressure
switch did not close.
Indicates an alarm from the ignition controller.
Indicates low pressure switch was closed with no call for
combustion fan.
Indicates a call for low speed combustion fan but low pressure
switch did not close.
Indicates that the max number of retries was reached.
Indicates that power was lost from the High Temp Limit Sensor.
Check for high limit trip.
Indicates communication with furnace control has failed.
No flame after 3 trials for ignition on the large manifold.
Menu
Microprocessor Controller for DOAS
Function
Alarm only
Alarm only
Alarm only
Alarm only
Alarm only
Alarm and Furnace lockout
Alarm only
Alarm only
Alarm only
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