Dungs MPA 4112 V2.0 Gebruikershandleiding - Pagina 13
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Pagina afdrukken18. Overview of the display modes MPA 4112, MPA 4122 AM 41
The display can show different information
depending on the operating status of the
automatic burner control system:
Active
Mode
Operating mode display
in normal operating conditions, if there is no fault.
Error display
if the unit is subject to a malfunction interlock.
From the operating- or error display by pressing the key combination
Information display
Error memory display
From the operating- or error display by pressing the key combination
Resetting display
From the operating- or error display by pressing the key combination
Flashing display
Depending on display mode:
1. Prompt to confirm the switch of access level
2. To intentionally reboot the MPA, press and hold the unlock button for
3. Processor 2 error, see error list
4. New password after password change
5. Unit restart, all segments and LEDs flash
13 ... 16
and
and
and
more than 5 seconds ("Enhanced unlock")
18.1 Operating mode display
Parameter switch to "Auto"
power supply "On"
Waiting for heat request
Idle state control LDW
(air pressure switch)
Safety chain check
Watchdog loading phase
Waiting for air pressure
External light control
Pre-purge
Pre-ignition
First safety time - ignition
First safety time-
Flame detection
Flame A statilisation
Second safety time
Second safety time -
Flame detection
Flame B stabilisation
Operation
Post-purge
Follow-up time
Restart protection
Waiting for safety chain
with open safety chain from
watchdog loading phase
state
Waiting for gas pressure
with insufficient gas pressure