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1 Safety instructions
1.8
Safety and monitoring systems
The detailed description of the error messages is given in Register "C User manual,
Control unit", section "11 Events".
1.8.1
Overview
(In compliance with EN 303-5:2012)
Fig. 1
Item
1
2
3
4
5
6
7
Underfeed grate UTSP
1.10 en
7
1
6
Safety and monitoring systems
Description
Back fire thermostat
Thermal extinguishing water
valve with sensor (optional)
Safety thermostat
Limit switch, boiler door
Limit switch, grate door
Rotary valve
O
sensor (lambda sensor)
2
2
Function
In the event of a backfire, switches off the
combustion system and generates an alarm.
Turns on extinguishing water supply in the
event of a backfire in the stoker screw.
Switches off the combustion system in the
event of excess temperature and generates
an alarm.
Switches off the combustion system if the
boiler door is opened and generates an
alarm.
Only allows the grate door to be opened
when the "Open combustion chamber door"
button is pressed.
Separates the fuel supply from the combus-
tion chamber.
Measures the oxygen content in the flue gas,
installation in the flue gas connection or the
flue gas fan
3
4
5
D-13
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