Fitted Equipment
NB! Only Alde original parts should be used
as replacement parts.
The boiler is fitted with a built-in warm water
heater with a volume of approx. 8.5 litres
fresh water. The warm water heater can
produce around 12 litres of 40°C water per
half-hour (at a cold water temperature of
10°C). If the heating cartridge is used instead
of gas for heating the boiler, the capacity is
slightly reduced.
MAINTAINING THE HEATING SYSTEM
Winter camping
While camping during the winter, ensure that
the flue is kept clear of snow and ice since
the inlet air to the LPG boiler enters through
the flue. Do not start the LPG boiler until the
flue is completely free of snow. A flue
extension (part no. 300 320) for fitting on the
roof is recommended for winter camping.
The LPG system
A professional, who will ensure that there are
no leaks from connections or hoses, should
check the LPG system regularly. LPG hoses
should be changed every second year, since
their propensity to dry out and crack will
eventually result in leaks. To increase safety,
we recommend fitting an Alde leak gauge,
type 4071, as close as possible to the
pressure reduction valve.
The heating system
Regularly check the heating system's fluid
level in the expansion tank. The level should
be about 1cm above the minimum indicator
in a cold tank. The heating system should be
filled with a mixture of water and glycol. For
preference, use high quality ready-mixed
glycol (with inhibitor) intended for use in
aluminium heating systems. If using
concentrated glycol, the mixture should
consist of 60% water and 40% glycol. If the
heating system will be exposed to
temperatures below -25°C, the glycol
content must be increased, but not to more
than 50%. Any vessels used for the liquid
must be spotlessly clean, and the pipes in
the heating system must be free of
contamination. This will prevent the growth
of bacterial in the system The glycol mixture
should be checked before topping up with
new liquid. This will ensure that the
concentration of glycol in the mixture is not
too high. If the fluid level in the expansion
tank falls for reasons other than evaporation,
please check all joints, drain cocks and
bleeder screws to ensure that they are not
leaking. If the glycol-water mixture leaks out,
rinse with water and wipe up. Never allow
the heating system to stand empty of glycol.
FILLING THE SYSTEM WITH GLYCOL
FLUID
NB! Any vessels used for the liquid must be
spotlessly clean, and the pipes in the heating
system must be free of contamination. This
will prevent the growth of bacteria in the
system.
The system is filled through the expansion
tank, either manually or using the Alde filling
pump which both tops up and bleeds the
system. For manual filling, unfasten the
circulation pump nut (R) and lift the pump (S)
out of the tank. Slowly pour the glycol
mixture into the tank. Bleed the system. Top
up with more liquid if the level has fallen
after bleeding. Bleed a newly filled system
regularly during the first days the heating
system is in operation.
BLEEDING THE SYSTEM
Depending on how the pipes have been
fitted, air pockets may form when the
system is filled with glycol fluid. A sign that
there is air trapped in the system is that the
heat released into the pipes only extends a
metre or so from the boiler even though the
circulation pump is operating. In newly filled
systems, small air bubbles can form in the
expansion tank, creating a murmuring
sound. If the circulation pump is stopped for
a few seconds, the bubbles will disappear.
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