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4. 7. Cleaning of the stove and chimney
When connecting the stove to the chimney flue, it is necessary to ensure that it is possible to clean the smoke flue pipes and the chimney. Regularly cleaning
the smoke flue pipes and the combustion area (firebox) in the stove will extend the useful lifetime of the heating appliance. Also the regular cleaning of the
chimney will prevent the potential ignition of the creosote accumulated on the walls of the chimney.
4. 8. Chimney fire
In the event of a chimney fire, it is necessary to immediately put out the fire in the stove by removing the remaining burning fuel using a shovel into a suitable
non-combustible container and immediately call the fire service (line 150) or line 112 of the integrated emergency system.
4. 9. Outside combustion air supply
It is necessary to supply a sufficient amount of fresh air for the combustion process. When burning wood, the wood stove will consume up to 15m3 of fresh
air per hour. The insulation of modern buildings from the outside environment may be very high (plastic windows, etc.). Further problems may be caused by
range hoods and other heating appliances that work in the room or in the area where the stove is located. The Aquaflam VARIO wood stove is equipped with
an outside air supply as standard, i.e. you can connect combustion air directly from the outside.
5. USER‘S MANUAL
5. 1. Putting an Aquaflam VARIO wood stove into operation for the first time
Before putting into operation for the first time, it is necessary to remove any stickers from the glass on the door, from ashtray accessories, as well as from the
firebox; this also applies to any transportation protective elements. According to the picture in the technical sheet, check that the fireclay panels are correctly
fitted. If you identify any fault in its installation, remedy this fact, otherwise the proper operation of the heating appliance may be jeopardised.
A heat-resisting surface coat is use on the wood stoves, which hardens after the stove is lit for the first time, after temporarily becoming soft. In the first stage
of softening, take special care to avoid damaging the paint coat with your hand or another object. When the stove is lit for the first time, it needs to be „broken
in“ using a small flame with a smaller fuel load at a lower temperature. All the materials must become accustomed to the thermal stress. By starting the fire
carefully, you will prevent cracks forming in the firebricks, damage to the paint coat and deformation of the structural materials of the stove. An odour may be
emitted while the paint is hardening and it will stop shortly – we recommended that you intensively ventilate the area, ideally by a cross-draught. If household
pets are in this area, temporarily move them elsewhere.
5. 2. Lighting and heating
To make lighting easier, first place 2 to 3 smaller wooden logs on the bottom of the firebox (grate), then paper or approved fire starters on top of them and then
twigs or wood splinters (kindling), small wood and then larger logs. Add a larger amount of fuel (to approx. 2/3 of the height of the firebrick lining).
Loading a larger amount of fuel will ensure a sufficient burning time for heating up the chimney and thus ensure its proper function. Open the air supply
regulator fully. After lighting the fire, the door of the firebox must be closed. As soon as the fuel starts burning well, use the air supply regulator to set a gentle,
rather dampened burn.
Ash is removed from the grate manually using a poker as necessary.
Attention: Always check the amount of water (pressure) in the system before lighting a fire. In forced circulation systems, check the operation of the circulation
pump. Check that the grate is not clogged; use a poker to sweep away excess ash.
Attention: The door of the firebox (combustion chamber) must always be closed except when putting it into operation, adding fuel and removing ash.
Attention: After every longer interruption to the operation of the stove, it is necessary to check the passage and cleanliness of the smoke flue pipes, the
chimney and the combustion area of the stove.
5. 3. Regulating air supply
5. 3. 1. Manual option
Manual regulation consists of a draw bar system, where the user regulates the external air supply damper by pushing and pulling a drawbar. The air supply
is opened when the drawbar is away from you.
5. 3. 2. Standard option
The electronics of the simple damper control are designed for directly controlling the position of the damper flap that controls the supply of air into the com
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bustion area of the Aquaflam VARIO wood boiler stove (the position of the potentiometer is converted into the position of the damper). To prevent the heat
exchanger from overheating, it is equipped with a temperature sensor, where combustion air supply is limited when the water temperature in the heat exchan
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ger rises. If the operating temperature and the supply voltage is in the normal range, then it is possible to use this controlling potentiometer to turn the damper
from the minimum position up to 90 °C. If the temperature on the sensor exceeds 85 °C, then the damper is set to the minimum position and normal operation
is resumed when the temperature falls back below 75 °C. If the temperature on the sensor exceeds 90 °C then the damper will indicate this condition with a
repeated acoustic signal (a long and short tone in a 7 second interval is made for the entire time that the temperature is above this threshold. The disconnection
of the temperature sensor circuit is indicated in the same way). If the supply voltage of the batteries falls below the threshold necessary for safe operation of
the control electronics (approx. 5.1V - it is necessary to replace the batteries for new ones) then every movement of the damper is accompanied by an acoustic
signal (beep-beep, this signal is repeated in an interval of approx. 30 minutes even when the damper is not moving). If the supply voltage falls to a level where
further operation of the damper would not be safe (under approx. 5V) then every movement of the potentiometer is accompanied by an acoustic signal (beep
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-beep/beep, this signal is repeated in an interval of approx. 30 minutes even when the damper is not moving); when at such a supply voltage level, the damper
remains in the minimum position. When batteries are inserted, the damper makes four acoustic signals (beep-beep-beep-beep), the electronics automatically
set the zero position of the damper (the damper moves against a limit stop, the electronics always repeat the zero position setting procedure after every 1000
movements and a subsequent drop in the temperature) and then the normal operation of the damper is resumed.
5. 4. Adding fuel
To prevent smoke from escaping into the room when adding fuel, we recommend: approximately 5 to 10 seconds before opening the door of the stove, to fully
open the primary air regulator, then only slightly open up the door, wait a few seconds for the smoke to be sucked up into the chimney and only then fully open
the door. After opening the stove‘s door, it is always necessary to pay increased attention, there is a risk of glowing ambers falling out. After adding the fuel,
close the door again. Once the fuel starts burning (without a smoky flame), return the regulator again to the initial position (or close if necessary). When adding
fuel, make sure that the fuel does not extend above the level of the firebrick lining of the firebox. The amount of added fuel should correspond to the nominal
hourly consumption of the given heating appliance (see technical sheet). Overheating may result in permanent damage to the stove.
Attention: Avoid excessive smoke leaking into the room during loading by adding fuel only once the previous load has burned down to a glowing bed of
ambers.
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