
34
Värmebaronen Vedolux -350, -450 and -650
The emergency program is intended only for
short-term operation.
Longer operation can damage the system.
The fault must be remedied as soon as possible.
The max. temperature thermal relay has been tripped - no operation possible.
STB triggered
Reset!
alternating display
Boiler temp.
[°F] ###.#
indication:
Cause:
Remedy:
Reset:
Control
measures:
On.
Boiler temperature over 203°F on account of too much wood,
a power cut or a fault in the heat removal, in the charging pump
or in the charging valve.
Add a smaller quantity of wood. Check the heat removal.
Unscrew and remove the protective cover on the max. temperature
thermal relay, STB, and press in the key below it when the display
shows ‘Boiler temperature 185°F’. The fault is deleted after a few
seconds and the boiler can be started manually.
The flue gas fan and charging pump are switched off.
primary air, V1 = 0%
secondary air, V2 = min. 25% open.
RISK OF BURN INJURIES!
Do not open the boiler’s hatches.
Contact an installation engineer if the fault occurs repeatedly.
Incorrect measured values for the boiler temperature - no operation possible.
Boiler temp.
measurem. error
alternating display
Boiler temp.
[°F] ###.#
indication:
Cause:
Remedy:
Reset:
Control
measures:
On.
Measured value under -4°F or over 302°F.
Check the contact and cable. Change the sensor if necessary.
Automatically when the cause has been remedied.
The flue gas fan and charging pump are switched off.
primary air, V1 = 0%
secondary air, V2 = min. 25% open.
Flue gas temperature too high - no correct operation possible.
Exhaust temp.
too high
alternating display
Exhaust temp.
[°F] ###
indication:
Cause:
Remedy:
Reset:
Control
measures:
Flashing.
Flue gas temperature over 572°F.
Close the hatches as soon as possible or clean the boiler after firing.
Automatically at a flue gas temperature under 572°F.
Flue gas temperature over 662°F: The flue gas fan is switched off.
Flue gas temperature under 572°F: The flue gas fan starts.
RISK OF BURN INJURIES!
Do not open the boiler’s hatches.
Warnings and alarms