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Alde Compact 3020
! WARNING: Alde can accept no liability
whatsoever for damage or injury resulting
from failure to observe these instructions.
Specific Use
These instructions are approved for the Alde
3020 Compact HE boiler fitted in caravans,
motorhomes or buildings in accordance with
CE 0402 no. SC0653-13, and have the E5
mark for installation in vehicles in accordance
with ECE R122, no. 00 001 and R10, no. 04
166, for use in central heating and hot water
systems.
The boiler is not intended for use by persons
(including children) with reduced physical,
sensory or mental capabilities, or lack of
experience and/or knowledge, unless they
have been given instruction or are supervised.
The term “specified use” also covers
observance of the operating and installation
instructions.
The Alde 3020 Compact HE boiler must be
installed or repaired by a competent person in
accordance with current local regulations.
In the unlikely event that your boiler develops a
fault, switch off the boiler and contact Alde, or
your dealer or installer.
Operating and installation instructions for the
Alde control panel are supplied separately.
The owner is always responsible for
maintenance and arranging inspection.
Boiler Design
The boiler’s internal heat exchanger consists
of three concentric cylinders; the combustion
chamber, the central heating cylinder and the
hot water cylinder.
The combustion chamber is made from
aluminium, and is divided into two halves by
a baffle plate, with the burner head located
in the top half, and the flue gases venting
through the bottom half.
The combustion assembly is fixed to the end
of the internal heat exchanger. It consists of
the burner, combustion fan, gas valve, air
intake and exhaust ducts, and gas line.
Two electric heating elements are sealed inside
the central heating cylinder, one for 1 kW, one
for 2 kW.
Gas Heating
When gas heating is set to on, the combustion
fan starts to revolve. Once the correct speed is
achieved (in rpm), a signal is sent to the PCB
for the burner to be lit. The gas valve opens,
passing gas, and the ignition module on the
PCB generates sparks at the electrode on the
burner head.
When the burner ignites, a flame supervision
device signals the ignition module to cease
sparking. The burner fires until the boiler or
room thermostat reach the setpoint.
Should the burner flame out unexpectedly, the
FSD detects this and attempts to reignite (for
about 10 seconds), before shutting down and
raising a fault code.
Note: Listen carefully to the ignition
sequence of the boiler. You should hear the
whirl of the combustion fan, the clunk of the
gas valve and the tick-tick of the ignition
module.
Electric Heating
When electric heating is set to 1, 2 or 3 kW,
relays on the PCB trip, feeding the 230v
supply to the electric heating elements. These
are controlled by the same programme as the
gas heating.
Domestic Hot Water
The combi-type boiler automatically produces
hot water. Heat is emitted from the central
heating cylinder into the hot water cylinder.
If the hot water cylinder is empty, the air is
heated but no damage can result.
Note: In a good summer, for example, lower
the desired temperature on the control panel
to around 10 °C. The central heating will not
circulate (unless the temperature drops to
10 °C), but you will still have hot water.
ALDE HEATING OPERATING INSTRUCTIONS
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