
For the user
37
Värmebaronen Vedolux -350, -450 and -650
Power cut.
Return to the operating status that existed before the power cut
when the power returns.
Over temperature in the boiler.
≥
194°F: the fan is switched off.
≤
192°F: the fan starts.
Incorrect measured value for boiler
temperature.
The fan and charging pump are switched off. The boiler cannot be
started.
Incorrect measured value for flue gas
temperature.
The boiler can be started. The regulator works with V1 and V2
replacement air flow rate. The boiler must be switched off
manually after firing.
The bar is not displayed when firing begins.
Incorrect measured value for the O
2
probe.
The boiler can be started. The regulator works with V1 and V2
replacement air flow rate. The boiler must be switched off manually
after firing.
Switch off on flue gas temperature.
Not recommended.
The boiler is switched off if the flue gas temperature, after
30 minutes of operation, is lower than 25% of the set flue gas
temperature for 15 minutes.
(TRG = flue gas temperature)
Frost protection.
Boiler switched off
The charging pump starts at a boiler temperature < 45°F.
If the temperature exceeds 46°F, the charging pump is switched
off.
Protection for flue gas fan and flue gas
temperature sensor in connection with
over temperature.
Flue gas temperature
≥
662°F: the flue gas fan is switched off.
Flue gas temperature
≤
570°F: the flue gas fan starts.
Safety test.
Limited to max. 30 minutes and ended or interrupted automatically if:
1) The boiler temperature is
≥
230°F
2)
has not been activated every 30 seconds.
Calibration of O
2
probe.
Automatically when the boiler has not been fired for 48 hours and
the probe has been in operation for more than 200 hours since the
previous calibration.
Safety functions.
If the boiler has not been fired for seven days, the flue gas fan
starts for two minutes and ventilates the boiler with fresh air to
keep it dry. At the same time, the charging pump is activated for
10 seconds.
TAD start.
If ‘TAD start’ is set to a temperature that is too high, the control
will interpret it as failed ignition and switch the boiler off.
See ‘03:TAD start’ in the ‘Settings’ menu.
Summary - faults, functions and control measures