Operating instructions
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19. ALDE HEATING SYSTEM
Operating Instructions
Please read these instructions carefully before using
the boiler. These instructions are approved for The
Alde Compact 3010 boiler tted in caravans, motor
caravans and buildings in accordance with CE
no.EMC e5 02 0138, 845 BP-0003. Installation and
repairs may only be carried out by a professional.
National regulations must be adhered to.
Boiler Design
The boiler consists of three eccentrically-tted
cylinders (heat exchanger, water jacket for the
heating system and, outermost, water jacket for
hot water). The two outer pipes, and their ends
and connectors are made of stainless steel, while
the heat exchanger is made of aluminium. The
heat exchanger is divided into two semi-circles.
The burner is located in the upper half, being the
combustion chamber, and the combustion gases are
expelled through the lower half. The burner unit is
tted on the end of the heat exchanger. It consists
of a combustion fan, burner, solenoid valve and
intake/exhaust connections. Two heating cartridges
are tted to the water jacket of the heating system.
Maximum output is 3.15kW, depending on model.
Description of Functions
Using LPG
When LPG operation is selected on the control
panel, the combustion fan starts. When the fan
speed is correct, it signals the circuit board that the
boiler can be it. The circuit board sends ignition
spark to the spark plug at the same time as it sends
electricity to the solenoid valve, which opens to allow
gas in. The burner ignites, and a sensor transmits
a signal back to the circuit board that the boiler is
lit, and the ignition spark stops. The burner keeps
burning until the boiler thermostat or the room
thermostat reaches the set temperature reading.
Should the boiler go out for any reason, the sensor
is activated and a new attempt is made to start the
boiler (in about 10 seconds). 230 volt heating will
not operate unless the icon showing 230 volt power
supply is shown on the control panel.
Using the heating cartridge
Electrical operation is selected on the control panel,
the 12-volt relays on the circuit board trip, allowing
the 230 volt supply to reach the electrical elements.
The heating cartridge is controlled in the same way
as the gas boiler.
Warm Water
When only warm water is required, for example
during the summer, no settings need to be made;
the boiler will look after this function automatically.
The pump will only start when the temperature
in the vehicle is lower than the temperature (see
control panel.)
Important information.
• The boiler must not be started if there is no glycol
in the system.
• The LPG boiler and heating cartridge may be
operated in parallel.
• The heating system may be heated up without
the warm water heater being lled with fresh
water.
• Always switch off the main isolator for the boiler
when the vehicle is not being used.
• Always drain the warm water heater of fresh
water if there is a risk of frost.
The LPG boiler must not be operated when refuelling
the vehicle.
When washing the vehicle, take care not to get
water in the roof vent.
The Domestic Hot Water Heater
The boiler is tted 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 cartridges
are used instead of gas for heating the boiler, the
capacity is slightly reduced. Always rinse out the
heater before it is used, particularly if it has not
been in operation for some time.
The hot water is not intended for
drinking or cooking. When the heater is
in continuous use, it should be emptied
approx, once a month, to ensure that a new air
cushion is formed in the heater. The air cushion
is essential for absorbing pressure surges in the
heater. For emptying specially-adapted boilers, as
well as any other fresh water systems in the vehicle,
please refer to the manufacturer’s instructions.
The warm water should always be drained of fresh
water when there is a risk of frost and when the
caravan is not in use. The warranty does not cover
frost damage.
Draining the heater using the combined safety/
drain valve:
• Switch off the freshwater pump.
• Open all water taps
• Then open the safety/drain valve by raising the
yellow lever (M) to a vertical position.
• The heater will now drain directly below the
vehicle through the safety/ drain valve hose.
Check that all the water is emptied out (about
7-10 litres.) Leave the valve in the open position
until the next time the heater is used.