7 Hydraulic connection
Latch in ash container
►
Press lever
1
down to the stop. The ash container
is thereby pressed against the auger channel.
Fig. 2-35: Latch in ash container
6.13 Mount cladding on the boiler
►
Mount two covers on the back.
7 Hydraulic connection
7.1 General information
Provide sufficient shut-off options
Position shut-off valves for each section (in buffer
tank, etc.) in order to minimise the quantity of water
that needs to be replaced in the event of repairs or sys-
tem extensions
Expansion tank (ADG)
Dimension the expansion tank with a capacity of 12%
of the total hydraulic system volume.
Secure the expansion tank against shut-off. To do this,
either use the shut-off options on the way to the expan-
sion tank as cap valves, or unscrew the hand lever
(handwheel) and attach it to the expansion tank with
the wire in a clearly visible position.
Hydraulic switch
A hydraulic switch separates the flows in boiler and
heating circuits. If the heating system is operated
without a buffer tank, a hydraulic switch must be instal-
led between flow and return.
Buffer tank: Use, dimensioning
The use of a buffer cylinder is to be recommended in
any case, as the boiler can then always operate in the
optimum load range. This prevents frequent and unne-
cessary boiler start-ups and significantly reduces the
higher fuel consumption during start phases.
A further advantage is that there is always a certain
volume available for heating, allowing a quick supply
of heat.
A buffer tank also prolongs the service life of the boiler
and reduces emissions.
For log wood boilers, a buffer volume of 55 litres per
kW heating output is mandatory. However, a buffer
volume of 70 litres per kW heating output provides
more comfortable heating operation. For pellet boilers,
a buffer volume of 30 litres per kW heating output is
recommended, and for wood chip boilers 35 litres per
kW heating output.
Operation manual
maximus
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