Alde Compact 3020 HE Gebruiksaanwijzing & installatiehandleiding - Pagina 4
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THE ELECTRIC ELEMENTS
All Compact 3020s are ! tted with two
230–240 V electric elements with a
maximum output of 2100 or 3150 watts,
depending on model. The output of the
electric elements is selected on the con-
trol panel.
Always check that the input fuse of the
vehicle has the correct amperage in rela-
tion to the selected output.
An output of 1050 W requires a 6 amp
fuse.
An output of 2100 W requires a 10 amp
fuse.
An output of 3150 W requires a 16 amp
fuse.
THE CIRCULATION PUMP
A circulation pump is required to circulate
the heated ethylene glycol " uid through
the heating system. There are three types
of circulation pump:
• 12 V circulation pump for ! tting in the
expansion tank
• 12 V circulation pump for ! tting to the
boiler
• 230–240 V circulation pump for ! tting
to the boiler.
If more than one circulation pump is instal-
led, the required circulation pump can be
selected via the control panel. The control
panel's room thermostat is used to control
the circulation pump, i.e. switching it on or
off, as determined by the heating require-
ment.
SYSTEM TEMPERATURE
The boiler is set to a system temperature
of 80°C, i.e. the temperature of the ethy-
lene glycol " uid as it circulates through the
heating system.
AIR CIRCULATION
In order to exploit the water-borne heat
design to the full, it is important that air
can circulate freely under bunks, and
behind backrests and wall-mounted cabi-
nets. If the vehicle has a ! tted carpet, for
instance, ensure that the carpet does not
obstruct the air supply to the convectors.
It is just as important that cushions or
blankets do not obstruct the " ow of air
behind backrests and wall cabinets.
Air " ow
Convectors
10
MAINTAINING THE HEATING
SYSTEM
Camping in winter
If camping during the winter, ensure that
the " ue is kept clear of snow and ice, as
the intake air to the LPG boiler enters
through the " ue
Do not start the LPG boiler until the roof
vent is completely free of snow. If a roof
" ue is ! tted, a " ue extension (part no.
3000 320) is available for camping in
winter.
The LPG system
The LPG system should be checked regu-
larly by a specialist, who will ensure that
there are no leaks from connections or
hoses.
LPG hoses should be changed as indica-
ted on the date stamp, as they tend to dry
out and crack, and are liable to leak as a
result.
For increased safety, we recommend
! tting an Alde leak detector, type 4071, as
close as possible to the reducing regulator.
Leak detector, type 4071
The heating system
Regularly check the heating system's
" uid level in the expansion tank. The level
should be about 1 cm above the minimum
mark, with the boiler cold.
The heating system should be ! lled with
a " uid mixture made up from water and
ethylene glycol. For best results, use high-
quality ready-mixed ethylene glycol (with
inhibitors) intended for use in aluminium
heating systems. The proportions when
using concentrated ethylene glycol are
60% water and 40% ethylene glycol. If the
heating system is likely to be exposed to
temperatures below -25°C, the ethylene
glycol content must be increased, but
should not exceed 50%.
Any vessels used for handling or mixing
the liquid must be spotlessly clean, and
the pipes in the heating system must be
free of contamination. This is to prevent
the growth of bacteria in the system.
The ethylene glycol mixture should be
changed every other year, as certain pro-
perties such as corrosion protection dete-
riorate over time. If Alde Premium Anti-
freeze is used, the interval for changing
the mixture can be extended to ! ve years
under normal operating conditions.
If the " uid level is too low, the ethylene
glycol content must be checked before
topping up. This is to prevent excessive
concentration of ethylene glycol in the
mixture. When topping up, use the same
quality of ethylene glycol mixture as is
already in the system, alternatively use
Alde Premium Antifreeze, which is compa-
tible with most ethylene glycol brands on
the market.
Never allow the heating system to stand
empty of ethylene glycol " uid.
FILLING THE SYSTEM WITH
ETHYLENE GLYCOL FLUID
NB" Any vessels used for handling or
mixing the liquid must be spotlessly clean,
and the pipes in the heating system must
be free of contamination. This is to pre-
vent the growth of bacteria in the system.
The system is ! lled through the expansion
tank, either manually or using the Alde ! l-
ling pump, which both tops up and bleeds
the system. For manual ! lling, unfasten
the circulation pump nut (R) and then lift
the pump (S) out of the tank. Slowly pour
the ethylene glycol mixture into the tank.
Bleed the system. Top up with more " uid
if the level has fallen after bleeding. Bleed
a newly ! lled heating system regularly
during the ! rst days it is in operation.
S
R