3 Warranty, guarantee, liability
Rotary valve
The rotary valve fulfils all normative requirements for
the approved fuels regarding fire protection, burn-
back safety, backflow of gases:
Abb. 2-5: Rotary valve
–
Complies with requirements regarding burn-back
protection devices (BPD) according to TRVB 118
H.
–
Prevents backflow of flammable products of com-
bustion into the fuel supply (according to EN 303-
5).
–
Prevents fire spreading into the fuel supply (accor-
ding to EN 303-5).
Safety switch on the trough cover
Opening the channel cover interrupts the power sup-
ply to the auger motor.
4.9 Efficient and low-emission operation
Please note the following recommendations from the
EU Energy Efficiency Directive:
Use of a buffer tank
Since maximum combustion is possible only in stan-
dard operation of the boiler, and greater losses and
higher emissions occur during the warm-up and burn-
out phases, use of a buffer tank is recommended.
This tank stores the water heated by the boiler, allo-
wing the connected devices (heating circuit, DHW
tank, fresh water module, etc.) to access it as requi-
red. This ensures sufficiently long, uninterrupted com-
bustion periods for the boiler.
Use of high-efficiency heating pumps
When using external heating pumps (e.g. return tem-
perature rise, heating circuit pumps, etc.), high-effi-
ciency pumps with energy efficiency class A should
preferably be used.
This delivers savings potential of up to 80 % in drive
energy (compared to conventional heating pumps)
with identical feed results.
Operation manual
maximus L
9
