HDG M299, Operation Manual

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6 Using the heating system – Operating statuses
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HDG M299/300/350/400 - Version 1 - en
©
HDG Bavaria GmbH 07/2008
Ignition
• The preset ignition temperature has not been exceeded.
• The ignition fan runs.
Add fan
•
The ignition fan runs and the flue fan or primary and secondary air
fan will start after the preset delay.
• This operating status is maintained until the preset time for
ignition has been reached or the combustion chamber
temperature exceeds the ignition temperature.
Pre-ventilation
•
The ignition fan shuts off.
• The flue fan or primary and secondary air fan run.
Heating-up
• The feed quantity is increased by increments.
•
This operating status is maintained until the preset time for
heating up or the preset temperature in the combustion chamber
have been reached.
Automatic control
• Only for “Combustion control” or “Combustion and output
control” mode.
•
The heating system runs automatically according to the
configured control mode.
Autom. not
controlled
•
Operation of the heating system in “Fixed value” mode.
Burn out
• The preset boiler temperature has been reached.
•
The boiler has been switched off.
• This operating status is maintained until the preset burn-out time
has elapsed.
Temperature reached
• The current boiler temperature is higher than the preset boiler
temperature.
•
No demand on accumulator.
• The boiler temperature is higher than the set temperature on the
regulating thermostat and the burn-out phase is complete.
Timer off
• Operating status outside of the set enable time.
• The heating system is not in operation.
Emergency operation
active
•
A sensor in the heating system is faulty.
• The boiler operates in accordance with the parameter values from
the submenu “Fixed value settings”.
Not enabled
• The heating system is controlled via an external heating circuit
regulator.
•
There was no enable command from the higher-level heating
circuit regulator.
Lambda stop
• The residual oxygen value for combustion has fallen below the
minimum.
• The heating system waits until the minimum residual oxygen
value has been reached again.
Operating status Description
Table 6/1 - Operating statuses (continuation)