Bleeding The System; Fault Finding - Alde Compact 3010 Bedienungsanleitung

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.
bleeding
If a bleeder screw is fitted to the outgoing
pipe, open this bleeder screw and leave it
open until it starts to discharge water.
If the boiler is fitted with an automatic
bleeder, there is no need to bleed it manu-
ally. Start the LPG boiler. The circulation
pump should be switched off.
Open the remaining bleeder screws in
the system (please refer to the instruction
manual of the vehicle for their locations).
Leave the bleeder screws open until they
start discharging fluid, and then close
them. Start the circulation pump and let it
run for a while. Check that the pipes and
radiators around the vehicle are heating
up.
if they still fail to heat up, try the
following:
single-axle caravan: Stop the circulation
pump. Lower the front of the caravan as
far as possible. Leave it in this position
for a few minutes to allow the air to travel
upwards in the system. Open the bleeder
screw at the highest point. Leave it open
until it discharges glycol fluid. Raise the
front of the caravan as far as possible and
repeat the procedure in this position. Then
position the caravan horizontally and start
the circulation pump. Check that the pipes
and radiators around the vehicle are heat-
ing up.
motor caravan or twin-axle caravan:
The easiest way to bleed the heating
system is to place the vehicle on a slop-
ing surface or to raise one end of the
vehicle using a jack. Bleed the system as
described above.
about LPg
the properties of LPg
LPG is a petroleum product, formally
known as "liquid petroleum gas". It is
mainly made up of propane and butane
gas. The advantage of propane is that it
remains gaseous at temperatures as low
as -40°C, while butane loses effective-
ness at +10°C. For this reason, propane is
used in colder countries.
The cylinders contain LPG both in liquid
and gaseous form. When the cylinders
are filled, the pressure turns the gas into
liquid. When the cylinder valve is opened,
the LPG becomes a gas again.
The risk involved in using LPG is that any
leaking gas may ignite and explode. Since
LPG is heavier than air, any leaking gas
will collect at the lowest point.
LPG contains no toxic substances, but
breathing in concentrated gas may have a
certain anaesthetising effect, and can also
result in shortness of breath and symp-
toms of suffocation. These symptoms
quickly disappear if the sufferer breathes
in ordinary air or oxygen.
Naturally, it is inadvisable to inhale either
LPG or exhaust fumes. To make it easier
to detect gas leaks, a substance with a
distinctly rank smell has been added.
Combustion
Complete combustion of LPG only gen-
erates carbon dioxide (CO2) and water
vapour, just like the air we exhale. A
good supply of air is essential to ensure
complete combustion. The flame should
burn with a weak blue colour, the centre
of the flame should be blue/green. LPG is
extremely environmentally compatible and
does not generate any soot during com-
plete combustion. It can be stored in cylin-
ders for an unlimited time period, without
any deterioration of quality.
Pressure
The LPG burner usually works at a lower
pressure than that in the cylinder. Low
pressure (0-50 mbar) and intermediate
pressure (50 mbar-2.0 bar) are created
by allowing the gas to pass through a
reduction valve. High pressure (over 2.0
bar), is unreduced pressure mainly used
in camping equipment. Low pressure and
intermediate pressure are always reduced
pressure.

FauLt Finding

the boiler does not start
1. No LPG? Incorrect type for conditions?
2. Is the main tap fully open?
3. Check that a suitable type of LPG is
used for the prevailing outdoor
temperature. Using butane is unsuit-
able at temperatures lower than +10°C.
Use propane instead!
4. If the boiler has not been operated for
some time, or if the gas cylinder has
been changed, it may take longer than
normal to light the boiler.
5. Check that the boiler is connected to
the electricity supply (> 11 V).
6. Check that the fuse (T) for the boiler is
intact.
7. Check whether the electric connections
on the boiler are securely in position.
8. If none of the above helps, contact a
service workshop.
emergency start
1. Disconnect 12V and the cable to the
panel on the heater.
2. Connect a cable between 2 and 9 in
the contact device (on the heater).
3. Connect 12V to the heater.
4. Now the heater starts with gas and
1kW. (Regulation of room tempera-
ture does not function, constant pump
operation).
the heating cartridge is not work-
ing
1. Check that there is an electricity supply
(230 V ~) to the heating cartridge.
2. Check that the relays fitted to the
boiler come on (a slight click can be
heard from the relays when the heating
cartridge is switched on at the control
panel).
If none of the above helps, contact a serv-
ice workshop.
Warranty
Alde's warranty is valid for one year from
the date of delivery and only covers mate-
rials or manufacturing faults, provided that
the directions for installation and use have
been followed.
The warranty does not cover frost
damage.
nb! Only genuine Alde parts should be
used as replacement parts.
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