3 Technical requirements
Wood chips
Use wood chips only in accordance with these spe-
cifications:
–
Wood chips according to the EN ISO 17225-
4:2014 standard
–
Permissible classes A1, A2, B1
Not permissible: Class B2
–
Sizes P16S and P31S
–
Moisture content maximum 35%(M35)
Detailed information on the classification of wood
chips
4.3 Safety devices
Heat dissipation
–
This function of the boiler control is a safety
device that prevents overheating of the boiler.
–
Functioning: If the boiler temperature exceeds the
Heat dissipation maximum boiler temperature
[1]
parameter, all pumps relating to the connected
devices (e.g. heating circuit, DHW tank, buffer
tank) will be switched on and the heating circuit
mixing valve opened. In this way, energy is drai-
ned from the boiler and it may be possible to pre-
vent other safety devices tripping.
–
If the boiler temperature falls below the set
Heat
dissipation maximum boiler temperature
minus
1°C again, the pumps and mixing valves will be
operated in standard mode again.
[1] You can find the parameter in
Service menu
|
System para-
meters
button |
General settings
button. The
Service menu
can only be accessed by qualified personnel (code input
required).
Thermal overload protection
–
The thermal overload protection prevents an
uncontrolled increase in temperature and pres-
sure of the boiler.
–
Functioning: At a boiler water temperature >
95°C, the valve opens and directs cold water
through the two series-connected safety heat
exchangers. This lowers the temperature of the
boiler and avoids the need for further safety pre-
cautions or equipment damage.
►
Install thermal overload protection
Overtemperature reset (OTR)
–
The overtemperature reset is a safety device that
prevents overheating of the boiler.
–
Functioning: The overtemperature reset stops the
heating process at a boiler temperature ~95°C
(exclusively electrical function; fuel and air supply
are interrupted).
–
After tripping, the overtemperature reset must be
manually released again by unscrewing the black
sealing cap
1
and pressing the button as soon as
the boiler temperature falls below 60°C.
–
If the overtemperature reset trips, this is indicated
on the boiler control display.
Abb. 2-3: Position of the overtemperature reset
►
Install overtemperature reset
Installation manual
maximus L
11
Содержание maximus L 150
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