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TECNIKA 28-35
USE AND INSTALLATION MANUAL
Chapter
6
page 44
Start-up procedures
Technical dept. - All rights reserved - Reproduction prohibited
Emergency system stop
Emergency situations may occur during boiler use and the boiler will switch to alarm/fault mode. The
boiler control panel indicates overheating and the boiler automatically switches to preventive mode to
protect the system. The overheat protection thermostat (alarm thermostat) is activated and the
"ALARM" warning light of the boiler indicates overheating. After having determined the reason for the
alarm, take action to restore normal operating conditions of the boiler.
CAUTION: the emergency thermostat is activated in case of emergency (boiler overheating). In this
case, the boiler must be left to cool down and the cause of excessive temperature must be
determined. Preventive measures must be adopted as a consequence. To manually reset the
emergency thermostat, remove the protective cap and press the stem until the thermostat is reset (it
will click). Then screw the cap back. After having checked the boiler and determined and eliminated
the cause of overheating, turn the "POWER" switch to ON to operate the boiler in normal working
mode. CAUTION - The procedure for checking the boiler and the heating system to determine the
cause of overheating must be carried out by an authorised, specialised technician. After restarting, the
entire system and the boiler must be heated up at moderate speed to detect incorrect situations and
prevent switching to alarm mode.
CAUTION
: forcing the fuel combustion process in the hopper chamber to stop (by pouring water and/or
other extinguishing substances) is not allowed because this would cause damage beyond repair to the heat
exchanger and the burner nozzle. You are keenly recommended to let the heat exchanger cool down slowly
to ambient temperature and then inspect the boiler completely, checking the system modules -
this
operation must be carried out by an authorised, specialised technician
.
