Alarms - Jøtul ERS 01 Operation And Maintenance Manual

ENGLISH
The stage is terminated when:
• the exhaust gas temperature value decreases below
Toperation (phase III initiated)
• the flame controller detects an increase of the exhaust gas
temperature and returns to phase I, continuing combustion
process.
Fig. 28 Automatic mode – phase II reaction
10.2.3 "Automatic" - phase III
When the exhaust gas temperature decreases
below Toperation (the animation of flames in
the Main Screen disappears), the flame
controller switches into phase II of the
automatic mode.
During phase III, the throttle is kept shut for 5
minutes. After the elapse of 5 minutes, the flame
controller opens the throttle to perform the fireplace blow-by
which also lasts 5 minutes. The flame controller switches back
to phase I of the automatic mode if the temperature after the
blow-by reaches the value of Toperation. If the temperature
does not reach the required value, the throttle is shut for
another 5 minutes.
After 3 failed blow-bys (the temperature value above
Toperation), the flame controller activates STOP mode of
operation or switches off according to 'Automatic Switch off'
procedure.
10.3 "Manual" operation mode
Manual mode gives possibility to set the intake air throttle
manually without any control of the regulator, which can cause
dangerous heating of the fireplace. When the temperature of
exhaust gases reaches temperature defined by Talarm parameter
will report the alarm and switch the operation mode into
automatic in order to cool the fireplace down.
Manual mode enables setting the throttle manually.
In order to set the throttle manually in manual operation
mode , turn the knob in the main window to set the cursor on
a position enabling to open the throttle and enable edition by
pushing the knob.
In edition mode (blinking value), turn the knob in order to
change position of the air throttle (there is no need to confirm
the value).
14
Fig. 29 Operation screen in "Manual" mode

11.0 Alarms

Abnormalities in operation of the regulator are reported as
alarms.
The regulator is equipped with an intelligent alarm function. It
means that the regulator identifies the type of alarm situation
and performs appropriate alarm actions depending on its
character.
When there is a triangle icon blinking in the upper right
corner of the main screen (where the active operation icon is
displayed), it means that an alarm situation occurred. Now, the
Alarms menu provides access to a content and code number of
the alarm reported by regulator (fig. below).
Attention! The code marking is useful during alarm
identificationtt.
Fig. 30 Alarm screen
List of alarms
Code 01; alarm "Overheated fireplace"
The alarm is activated when the temperature of exhaust gas has
reached the dangerous level of 500°C in the smoke pipe (Talarm
in maintenance settings)). The fireplace is overheated. The
regulator will close the intake air throttle in order to decrease
temperature of exhaust gases. When temperature of exhaust
gases drops below Toperation - Hysteresis 2, the regulator will
disable the alarm. If the regulator is in operation mode other
than automatic (e.g.: manual), it will switch into automatic
operation mode. If the alarm repeats too often, it can indicate
that preset temperature is close to alarm temperature. Tmax
parameter in Options menu should be changed.
This alarm indicates improper burning process; too much air
gets into the fireplace combustion chamber. All additional
fireplace air intakes should be closed and air supply should be
provided only through the throttle controlled by the regulator.