Astra P-8 User manual

Astra P-8
USER MANUAL
CONTACT INFORMATION:
MACHINERY PLANT“ASTRA”AB
ULONŲ G. 33, LT62161 ALYTUS, LITHUANIA
TEL.: [phone]
EMAIL: INFOASTRA.LT
WWW.ASTRAGAS.LT
ASTRA MACHINERY PLANT AB • ANNO 1929

3
TABLE OF CONTENTS
1. SAFETY REQUIREMENTS ..................................................................................................4
2. INTENDED USE ...............................................................................................................4
3. TECHNICAL DESCRIPTION ................................................................................................5
• Components of the Stove ...........................................................................................................................................5
• Technical Features......................................................................................................................................................6
• Circuit Diagram ..........................................................................................................................................................7
4. FUEL.............................................................................................................................8
5. PLACEMENT, ASSEMBLY AND INSTALLATION ......................................................................8
• Considerations for Placement of the Stove.................................................................................................................8
• Patterns of Installation...............................................................................................................................................9
6. TRANSPORTATION, STORAGE, UNPACKING.......................................................................12
7. KINDLING....................................................................................................................12
8. OPERATION..................................................................................................................13
• Display and the Remote Control...............................................................................................................................13
• Navigating the Menu ...............................................................................................................................................14
• Menu Structure........................................................................................................................................................15
• Setting the Clock......................................................................................................................................................15
• Setting the Weekly Timer Programs .........................................................................................................................15
• Setting the Room Temperature ................................................................................................................................17
• Output Power Regulation.........................................................................................................................................17
• Regulation of the RoomVentilator...........................................................................................................................18
• Setting the Fuel Options...........................................................................................................................................18
• Modifying the Setup Options ...................................................................................................................................18
9. MAINTENANCE AND CLEANING.......................................................................................19
• Cleaning Schedule....................................................................................................................................................19
• Exterior Surfaces Cleaning........................................................................................................................................20
• Heat Exchanger Tubes Cleaning ...............................................................................................................................20
• Ashes Drawer Cleaning.............................................................................................................................................20
• Combustion Chamber Cleaning................................................................................................................................20
• Fire Pot Cleaning......................................................................................................................................................21
• Vermiculite Plates Cleaning......................................................................................................................................21
• FlameTrape Cleaning...............................................................................................................................................21
• Flue Channels Cleaning............................................................................................................................................22
• Pellet Hopper Protection against Burning ................................................................................................................23
• Protective Handle.....................................................................................................................................................23
10. TROUBLESHOOTING....................................................................................................23
• Alerts .......................................................................................................................................................................24
• Errors........................................................................................................................................................................25
• Power Supply Failure................................................................................................................................................25
11. WARRANTY TERMS AND CONDITIONS............................................................................26
12. ACCEPTANCE CERTIFICATE............................................................................................26
SELLING CARD .................................................................................................................26
STOVE INSTALLATION PROTOCOL........................................................................................27
WARRANTY AND POST-WARRANTY REPAIR CARD.................................................................27
DECLARATION OF CONFORMITY .........................................................................................28

4
Astra P-8 USER MANUAL
1. SAFETY REQUIREMENTS
The stove must be installed and tested by qualied personnel instructed and authorized by Astra representing company. Please carefully
read this use and maintenance manual before installing and putting the stove into operation. For further information, please contact your
local Astra dealer.
The exploitation of the stove must comply with national and European regulations. During the operation of the stove, strictly observe the
following safety requirements:
• The stove is designed to be fuelled exclusively with high-quality wood pellets with a diameter of 6 mm as described in chapter 4 of
this user’s guide;
• Do not attempt to operate the stove using traditional wood!
• To avoid potential re hazards, the stove should not be used for incineration of household garbage under any circumstances!
• Before placement of the stove, check with local building codes to assure that the installation will comply with applicable technical
and legal norms;
• Installation of the stove and the electrical connections, initial function checks and adjustments must be performed by qualied and
authorized personnel;
• Improperinstallationorpoor maintenance(not compliantwithinstructionsofthisusermanual)mayendangersurroundingproperty
and/or human health. In the case of the aforementioned product misuse, Astra is exempted of civil and criminal responsibility;
• When linking the stove to a ue, all ducting works must be completed prior to connecting to the electrical supply;
• There must be sucient air circulation in the room where the stove is installed;
• To avoid a potential re hazard, never open the door of the stove while burning goes on!
• To assure maximum safety while using your stove be sure to follow all use and maintenance operations as described in this manual;
• This pellet stove should not be operated by people with physically or mentally challenging conditions, or who have no experience
using such devices, unless they are under the direct guidance of a qualied and responsible person;
• The stove must not be operated or played with by children;
• To avoid a potential re hazard, never operate the stove with its door open, or if the door glass is cracked;
• While the stove is in operation, its surfaces, the glass, the door handle and ue ducting become very hot. Use extreme caution and
be sure to use heat-resistant personal protective equipment when touching these components;
• Kindle the stove only after the daily inspection described in this manual has been performed;
• To avoid a potential re hazard, do not dry laundry on or near the stove. Keep clothes and other ammable objects at a sucient
distance from the stove;
• For greatest safety, carefully follow the cleaning and maintenance schedule listed in table on page 19 of this manual;
• Do not turn o the stove by unplugging it from the electrical supply;
• Do not clean the stove until a body and ashes have cooled down completely;
• Do not remove the protection grid out of the pellet hopper;
• To avoid the risk of electric shock, do not touch the stove while barefoot and wet;
• The stove must be connected to the electrical supply with an easily accessible plug;
• Do not modify the design of the stove;
• To repair the stove, use only original replacement parts supplied by the manufacturer.
• Do not wait for components of the stove to become totally worn before replacing them. Replace a worn component before it
is completely disabled to prevent possible accidents caused by the sudden breakdown of the components. Perform periodic
maintenance checks as described in chapter 8 of this manual.
• In the case of a chimney re: 1) call re department immediately, 2) disconnect the stove from the electrical supply, 3) block an air
supply to the stove if possible.
This stove has been designed to function in all climatic conditions. In the circumstances of particularly adverse weather (high wind,
freezing), safety systems may automatically engage and switch o the stove. If this occurs, please contact technical assistance for
directions. In any case, do not disable the safety systems.
2. INTENDED USE
The Astra pellet stove is an eective home heating appliance intended to heat a room with hot blown air. It simultaneously performs
the function of a replace as you view the re through the temperature-resistant glass. It can be installed in all kinds of residential spaces
where people work, relax or spend their time. In order to reduce any possible danger to human health and property, the stove Astra is
equipped with special safety devices. For added convenience, control of the appliance can be fully automated. Once programmed, the
Astra pellet stove is capable of maintaining dierent heating output levels at a variety of pre-set time intervals over the course of a day,
seven days a week; it sustains a set air temperature in the room with the help of an integrated temperature sensor; and it even makes the

5
Astra P-8 USER MANUAL
decision to stop the appliance if unfavourable safety conditions arise: draught of the ue disappears or has fallen substantially, the door
of the stove is opened during the operation; the pellet hopper heats up; or other potentially harmful events happen. In addition, the stove
can be operated by a remote control unit (available by special order).
Only 6 mm wood pellets are used for fuelling the Astra stove. The appliance is not designed to be operated with any other kind of fuel
because other fuels leave a greater content of ashes and slag.The latter then will cause the re pot to clog, activating emergency stop of
the appliance. In order to enjoy the pleasant heat of the stove without unpleasant interruptions, use only high-quality 6 mm wood pellets
and keep the combustion chamber, re pot and ue channels of the stove cleaned at all times.
3. TECHNICAL DESCRIPTION
• COMPONENTS OF THE STOVE
Wood pellets from the hopper 4 are transported by means of the auger 5 into the re pot 19 (Fig. 1).The electrical igniter 18 kindles
the pellets. The ame and hot ue gases rise to stainless steel heat exchanger 1, descend afterwards by two lateral ue channels
surrounding the combustion chamber and are released with help of exhaust fan 16 into the chimney connection pipe 13. The room
ventilator 7 draws air from surroundings and blows it through the hot heat exchanger tubes 1, thus supplying heat.
1 32
4
5
6
7
8
9
10
11
13
12
14
16
17
18
19
20
Fig. 1 Components of the stove
1. Stainless steel heat exchanger; 2. Flame trap; 3. Display unit; 4. Pellet hopper; 5. Auger; 6.Temperature sensor of the hopper safety
thermostat; 7. Room ventilator; 8. Gear motor; 9. Air intake pipe; 10. Air intake ow sensor; 11. Control board; 12. Hopper safety
thermostat; 13. Smoke exhaust pipe; 14. Room temperature sensor; 16. Exhaust fan; 17. Smoke temperature sensor; 18. Electrical
igniter; 19. Fire pot; 20. Heat exchanger tubes scraper.

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Astra P-8 USER MANUAL
• TECHNICAL FEATURES
Our product is manufactured in accordance with the following directives:
2006/95/EC– Low voltage directive;
2006/42/EEC – Machinery directive;
2004/108/EEC– Electromagnetic compatibility directive;
89/106/EEC – Construction products directive.
The following standards were applied for the Astra P-8 pellet stove:
EN 14785 – Residential space heating appliances red by wood pellets;
EN 60335-1 – Safety of household and similar electrical appliances;
EN 60335-2 – Safety particular requirements for fuel burning appliances having electrical connections;
EN 55014-1; EN 55014-2; EN 61000-3-2; EN 61000-3-3 – Electromagnetic compatibility.
Model of the stove Astra P-8
Heat transfer medium Air
Rated heating output 8.5 kW
Reduced heating output 2.7 kW
Period of complete burning of one full fuel load, min-max 11-30 h
Weight 80 kg
Height 940±10 mm
Width 453 mm
Depth 483 mm
Flue gas pipe diameter 80 mm
Air intake pipe diameter 35 mm
Capacity of the pellets hopper 16.5 kg
Fuel: wood pellets 6 mm
Hourly fuel consumption, min-max 0.5-1.9 kg
Heated space volume 180 m3
CO emission level (at 13% O2)Reduced output 0.012 %
Rated output 0.037 %
Eciency Reduced output 91,4 %
Rated output 85 %
Minimum chimney draught Reduced output 8 Pa
Rated output 10 Pa
Average smoke temperature Reduced output 100 °C
Rated output 240 °C
Volume of the ue gases ow Reduced output 3.1 g/s
Rated output 6.1 g/s
Average electrical energy consumption Operation stage 40-80 W
Kindling stage 300 W
Rated voltage 230 V
Rated frequency 50 Hz

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Astra P-8 USER MANUAL
LN
t°C t°C
O01 O02 O03 O04 I01
LPE N
T02 T01
GND I02 T03
GND F03 F01/02 +VIO
+-
T1 T2F1
B1
S1 M2 M3 SK1
M1
PE
L
N
1 2 3 457
1234
5
7
12P
CN5 CN7 CN9
CN4 CN10 CN8
CN1
L1
N1
8910 11
6A
6.3mm
0.5-1.5mm²
4.8mm
0.5-1.5mm²
ø4mm
0.5-1.5mm²
ø5mm
0.5-1.5mm²
ø4mm
4-6mm²
6.3mm
0.5-1.5mm²
0.5-1.5mm²
L1
N1
1
2
P
15 1816 17
LN
89
LCD
12 13 14
Fig. 2 Circuit diagram of the stove.
• CIRCUIT DIAGRAM
The electrical circuit diagram of the stove is presented below in Fig. 2. The denomination of elements is as follows:
T1 – Room temperature sensor; T2 – Smoke temperature sensor; B1– Electrical (250 W) igniter; M1 – Fan 1- smoke exhaust fan;
M2 – Fan 2- room ventilator; M3 – Auger gear motor; SK1– Pellet hopper safety thermostat; F1 – Air ow sensor.
User interface
Service socket
Mainboard
Green
Braun
White White
Green
Red
Blue
Black
Battery
Fuse: T 4A

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Astra P-8 USER MANUAL
4. FUEL
Use 6 mm diameter high quality pellets to fuel a stove. When purchasing pellets, make sure that they comply with one of the bellow
listed standards and their packing is marked correspondingly:
EN 14961-2, class A1,
ENplius-A1,
DinPlius.
Wood pellets of lower quality could also be used for fueling but the stove‘s operation in that case will not be stable because of the
fuel quality. Do not use the non-wood pellets for fueling the stove.
Parameters of pellets according to EN14961 standard, class A1:
Length 3.15-40 mm
Diameter D06 6 +/-1 mm
Weight BD600 > 600 kg/m3
Caloric value Q4.6 > 4.6 kWh/kg
Residual humidity M10 < 10 %
Ashes content A0.7 < 0.7 %
Fines content F1.0 < 1 %
Do not put a bag of pellets on the surface
of the stove during the loading operations!
The pellets must be transported and stored in a dry place. They
swell after contact with moisture and become unsuitable for
ring. The pellets must always be protected against humidity
both during transportation and storage.
Astra strongly advices using the 6 mm diameter
wood pellets for fuelling the Astra stove.
5. PLACEMENT, ASSEMBLY AND INSTALLATION
•CONSIDERATIONS FOR PLACEMENT OF THE STOVE
The residential space considered for the placement of the stove must meet the following technical requirements:
• Pipe connection to a chimney of 8 cm diameter must be installed;
• The supply of air for combustion must be assured either from other ventilated rooms through opening of at least 100 cm2, or directly
from outside through the 35 mm air intake pipe. The design of grilles mounted on the opening shall exclude blocking of the air
supply;
• The permanent humidity of air in the room must not exceed 80%;
• A connection of electrical supply of 230V, 50 Hz must be installed;
• CE compliant earthing system must be present.
The placement of the stove is important for the successful heating of the room. Please, take into account the next considerations
before deciding where to place the stove:
• If the supply air needed for combustion is to be taken from another room, that room must be ventilated or have air inow from
outside. The stove can consume up to 40 m3of air per hour at maximum, so the sucient amount of it must be supplied either from
outside or from another inner space of a house;
• The stove cannot be placed in the bathroom, near a shower or bath, or in another space with high humidity level;
• If wooden ooring is present in the desired place of installation, rst cover it with a protective re-resistant plate made from steel,
glass or ceramic;
• The room in which the stove is to be placed must have at least 30 m3of volume;
• Make sure that a oor base on the place of installation has a sucient holding capacity to bear weight of the stove;
• It is recommended to place the stove in the largest room of a house or in a room which has good connectivity with other inner spaces
of a house, so that the maximum circulation of heat would be ensured;
• Connection to the electrical supply must be done through a grounded socket. If the cable of the stove is not long enough to reach the
nearest socket, use a grounded extension cable;
• If another heating installation (stove, replace) without autonomous air supply is present in the room of considered placement of the
Astra stove, evaluate, whether there would be a sucient air supply for both appliances working simultaneously and if that kind of
double installation is allowed by local technical regulations;
The stove must be installed and assembled only by qualied personnel.
• The stove must be placed so that easy access to it and to a chimney is ensured.

9
Astra P-8 USER MANUAL
• The joints of chimney pipes must have temperature resistant gaskets in order to ensure sucient tightness of the connections;
• A separate chimney is mandatory for the Astra stove installation. It is not permitted to connect the stove to a shared ue;
• The connection of the air intake tube of the stove to an outside is not obligatory. If the air for combustion is taken from inner spaces
of the house, these must be ventilated so that up to 40 m3of air inow is ensured;
• Do not use a mesh on the top of a chimney because it can reduce draught and cause problems for the stove functioning;
• When designing the chimney piping for the stove, do not use more than 3 pieces of 90° bends. The biggest distance between the
adjacent bends must not exceed 2,5 meters horizontally;
• A minimum distance of 10 cm should be left from the rear stove panel to the wall. A 20 cm free space must be left from lateral sides
of the stove and 150 cm- from the front side.
Fig. 3 Chimney installed outside the house.
Yes
YES NO
FIG.6FIG.9
YES
FIG.10 FIG.5
NO
FIG.8
YES YES
FIG.7
< 2500 mm
H > 4000 mm
H > 1500 mm
8
3
4
1 2
9
10
11
5
7
6
12
0,4 m
0,4 m
0,4 m
0,4 m 0,4 m
135°
Insulated ue
Chimney cap for rain protection
Insulated chimney tee with
condensation drain pipe
Fig. 4 Incorrect installation - with 90° bend as the rst connecting part.
No
YES NO
FIG.6FIG.9
YES
FIG.10 FIG.5
NO
FIG.8
YES YES
FIG.7
< 2500 mm
H > 4000 mm
H > 1500 mm
8
3
4
1 2
9
10
11
5
7
6
12
0,4 m
0,4 m
0,4 m
0,4 m 0,4 m
135°
Ashes accumulate in the 90° bend
• PATTERNS OF INSTALLATION
A 90° bend should not be installed as the rst
connecting part – ashes would quickly obstruct a
passage for smoke causing unexpected problems
for draught of the ue (Fig 4).
This type of installation (Fig. 3) requires an
insulated ue, as the whole smoke pipe is
installed outside the house. A chimney tee with
an inspection cap and condensate drain pipe is
mounted in the lower part of the ue.

10
Astra P-8 USER MANUAL
YES NO
FIG.6FIG.9
YES
FIG.10 FIG.5
NO
FIG.8
YES YES
FIG.7
< 2500 mm
H > 4000 mm
H > 1500 mm
8
3
4
1 2
9
10
11
5
7
6
12
0,4 m
0,4 m
0,4 m
0,4 m 0,4 m
135°
Fig. 5 Smoke pipe installed partly inside a house and partly inside an existing ue.
Yes
Chimney tee with a cap and a
peephole
45° bend, Ø 80 mm
Chimney cover plate
Airtight steel sheeting
YES NO
FIG.6FIG.9
YES
FIG.10 FIG.5
NO
FIG.8
YES YES
FIG.7
< 2500 mm
H > 4000 mm
H > 1500 mm
8
3
4
1 2
9
10
11
5
7
6
12
0,4 m
0,4 m
0,4 m
0,4 m 0,4 m
135°
Fig. 6 Whole smoke pipe installed inside a house.
Yes
Chimney tee with a cap and a
peephole
Chimney cap for rain
protection
This type of installation (Fig. 5) does not require
an insulated ue as the smoke pipe is assembled
partly inside the house and partly inside an
existing ue. A chimney tee with a peephole cap
is installed in the lower part of the ue.
Please note the use of two 45° bends in order
to guarantee that ash falls into the chimney tee
with the cap and the peephole.
This type of installation (Fig. 6), does not require
an insulated ue, because the whole smoke pipe
is assembled inside a house. A chimney tee with a
peephole is mounted in the lower part of the ue.

11
Astra P-8 USER MANUAL
Fig. 7 Incorrect installation with two 90° bends.
No
YES NO
FIG.6FIG.9
YES
FIG.10 FIG.5
NO
FIG.8
YES YES
FIG.7
< 2500 mm
H > 4000 mm
H > 1500 mm
8
3
4
1 2
9
10
11
5
7
6
12
0,4 m
0,4 m
0,4 m
0,4 m 0,4 m
135°
Ashes accumulate in the 90° bend
Two 90° bends cannot be assembled the
way shown in Fig. 7, because ashes would
quickly obstruct a passage for smoke causing
unexpected problems for draught of the ue.
Fig. 8 Installation with a combined internal/external ue.
Yes
YES NO
FIG.6FIG.9
YES
FIG.10 FIG.5
NO
FIG.8
YES YES
FIG.7
< 2500 mm
H > 4000 mm
H > 1500 mm
8
3
4
1 2
9
10
11
5
7
6
12
0,4 m
0,4 m
0,4 m
0,4 m
0,4 m
135°
Insulated chimney tee with
condensation drain pipe
Chimney tee with a cap and a
peephole
Chimney cap for rain
protection
Insulated ue
This type of installation (Fig. 8) does not require an insulated ue for the part inside the house, whereas for the outside part an
insulated tube must be used. A chimney tee with a peephole is installed in the lower part of the ue inside the house. Another
chimney tee is installed in the outside part of the ue making it available for inspection.
Sucient draught is essential for the eciency of all chimneys. Draught arises from temperature dierences inside and outside of
the chimney, which consequently cause pressure dierences.
Weatherand geographicalconditionssuchas wind,snow,rain, altitude above sea level,fog,etc.,canalso haveanimpacton chimney
draught. Among them, wind is certainly the most important. Wind generally increases draught except in cases of downdraughts,
temperature inversions, or cross draughts caused by tall trees, hills, or buildings in close proximity to the chimney. These situations
can cause the smoke to be pushed back DOWN the chimney.
The installation, placement, and design of the chimney have a direct inuence on the stove’s functioning. Any negative inuence
of installation can be compensated for by reprogramming the stove controller.This adjustment must be done by qualied service
personnel.

12
Astra P-8 USER MANUAL
Fig. 9 Recommended lengths of parts of a combined internal/external ue
YES NO
FIG.6FIG.9
YES
FIG.10 FIG.5
NO
FIG.8
YES YES
FIG.7
< 2500 mm
H > 4000 mm
H > 1500 mm
8
3
4
1 2
9
10
11
5
7
6
12
0,4 m
0,4 m
0,4 m
0,4 m
0,4 m
135°
Insulated ue
Insulated chimney tee with
condensation drain pipe
The minimum height of chimney from the stove’s smoke pipe to the chimney top is 4 meters. The recommended lengths of various
parts of combined internal/external ue are presented in Fig. 9.
6. TRANSPORTATION, STORAGE, UNPACKING
The stove is to be transported and packaged in original packaging of the manufacturer, protected from precipitation and dust. It
must be transported only in the vertical position, fastened to avoid sliding and falling. If the stove is transported any other way,
decorative surfaces may be damaged, cladding battered, control and regulation equipment broken, or the re pot may fall down and
harm the vermiculite plates. The appliance should be carefully loaded, unloaded and transported, to avoid any signicant impact.
The stoves can be loaded one on the top of another, because the packaging is designed so that the stoves may be transported and
stored in two decks. However, loading other objects on the top is prohibited as the packaging frame of the stove has been designed
specically to support the same stove.
The stove should also be stored in a vertical position, in a closed room protected from precipitation. The air humidity of the room
should not exceed 80%, in order to avoid condensate forming on the surfaces of the appliance. Storage temperatures may vary from
-40 °C to +60 °C. If the stove was transported or stored in sub-zero temperatures, then it should be moved to a place above zero for
no less than 2 hours before being used.
After the stove is delivered to the site, take o the packing frame and polyethylene lm, remove the stove from the packaging base.
Then check if all elements listed in a delivery kit are included.The delivery kit consists of the following: stove - 1 pc.; cable with plug
for electrical connection - 1 pc.; re pot - 1 pc.; protective handle - 1 pc.; user manual - 1 pc.; remote control (only when ordered
separately) - 1 pc.
The user manual is an integral part of the stove. Please, make sure that it remains with the stove, including
cases when it is transferred to another user or another place.
Check to ensure that painted surfaces have not been damaged during transportation, that the components are not bent, and that
the control and regulation equipment is intact. If you notice any damage or discrepancies, present your claims to the vendor company.
7. KINDLING
Connect the stove to the electrical supply and turn on the switch 3 on the lower half of the rear panel of the stove (Fig. 19). Lift the lid
of the pellet hopper, put the opened end of a pellet sack on the hopper aperture and ll it by 4/5 approximately (11 kg). Avoid spilling
pellets into ventilation notches of the stove.Then kindle the stove by pressing the button 1 (Fig. 10) and holding it for one second.The
Chimney tee with a cap and a
peephole

13
Astra P-8 USER MANUAL
1
1
2
3 4 5 6 7 8 9 10 11 12 13
14
18
19
15
1617
Fig. 10 Display and the remote control unit.
1.Start/stop button and its indicator; 2. Cancel/return button; 3. No fuel indicator; 4. Cleaning required indicator; 5. Servicing required
indicator; 6. IR sensor; 7. Weekly timer indicator; 8. Burning power menu indicator; 9. Room ventilator speed menu indicator; 10.
Temperature menu indicator; 11. Fuel quality menu indicator; 12. Time menu indicator; 13. Setup menu indicator; 14. Edit buttons;
15. Enter button; 16. Menu buttons; 17. Screen; 18. Burning power +/- buttons; 19.Temperature +/- buttons.
nearby ame - shaped indicator starts blinking: it means the stove has turned to the operation mode.
Before kindling the stove, take out the re pot 19 (Fig. 1) and make sure that holes of the pot are clean and unclogged.
When kindling the stove after a longer cessation, before the new heating season, make sure that the air intake pipe, the re pot and the ue channels of the stove are clean and passable.
8. OPERATION
• DISPLAY AND REMOTE CONTROL
The remote control unit does not come in a standard delivery kit of a stove. It must be ordered separately.
The Astra stove controller consists of two parts: a display and a control board mounted near the base of the stove. The
display operates by principle of capacitive touchscreen. Pushing buttons on it requires good contact with the ngertip rather than
force. Therefore, the display will not react if gloves are worn while attempting to use the controller.
Button Description
This button is used to start and stop the combustion process in the stove.The process is launched or stopped by
pressing the button and holding it for 1 second.
Menu buttons are intended to navigate horizontally the controller menu (look at the menu structure tree
presented below).The chosen section of the menu is indicated in the upper line of indicators on the display.
Edit buttons are used for two purposes: vertical navigation (look at the menu tree) and increasing/decreasing
parameter values in the edit mode, when the selected value blinks.
Enter button is used for entering the edit mode, conrming the set parameter values or entering the lower menu
levels.
Cancellation button is used for discarding the made changes and returning up one level in the menu. If you press
and hold this button for more than 3 seconds, the last error or alert code will be displayed.

14
Astra P-8 USER MANUAL
The infrared remote control is intended for day-to-day use when the combustion system is fully congured and operational. It is used
for changing the burning power and temperature settings, turning the combustion in the stove on and o.
In the upper part of the display, there is a line of indicators signaling various modes and alerts of the controller. The IR sensor in that
line is used for communication with remote control unit.
The screen displays the set or current values for the currently selected menu option. Buttons help to navigate through the menu and
control dierent functions of the stove controller. The intended use of the buttons is described in the table above.
The display has an integrated beeper. The beeper generates feedback signals, when the display buttons are being pressed. The
following sound signals are available:
• Short high tone: sounds when navigating the menu and editing the settings.
• Long low tone: sounds in case of an invalid operation (wrong button pressed).
• Long high tone: in case of an alert, this tone sounds with the user-dened volume; in case of an error, this tone sounds at 100%
volume; for description of alerts and errors, refer to the chapter“Troubleshooting”.
• NAVIGATING THE MENU
In order to navigate the menu horizontally, in the same level, use the menu buttons . When choosing a menu option, an icon
in the indicator line of the display lights up. At the same time, the screen indicates either the value of the chosen menu parameter, or,
in the case the chosen menu section has a sublevel (for example, Time menu), the value of the rst subsection parameter.
In order to navigate the menu vertically, use the menu buttons . When navigating the lower sublevel of the menu, a number
of a particular menu subsection briey lights up. For example, the Time menu section has a lower level menu consisting of four
subsections. Each time you skip to the next subsection the number from 1 to 4 lights in the screen.
To modify a setting in the menu, press button to enter the edit mode for the selected setting. The screen value starts blinking.
Use buttons to change the value. To move through the steps in the edit mode, use . buttons. When nished, press
button to save the setting and exit the edit mode. The display returns to the menu entry you have just edited.
The screen of the display shows the set value or the actual measured value, depending on the setting. For example, when you edit
the temperature, you enter the desired room temperature. After you exit the edit mode, the screen indicates the actual measured
temperature which may dier from the set temperature. When you edit, for example, the burning power setting, the screen indicates
the set value.
To exit the edit mode without saving the changes, press button. This button is also used for returning up one level in the menu.
For example, if you are editing the Program 3 in the Weekly Timer Periods menu subsection, press the Cancel button to discard the
changes and return to Program 3. Pressing the Cancel button further moves you to Weekly Timer Periods, then - to the Clock menu
section.
Clock
Time/Date
Idle display
Temperature
Power Fan Setup
Burning power Fan speed Room
temperature °C
Weekly timer
ON/OFF
Weekly timer
periods
Weekly timer
days
Idle display
brightness
Beeper volume
Program 1
Program 2
Program 3
Program 4 Start time End time Temperature
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
1. Program2. Program
Fuel quality
pellets Key lock
Service menu
Time
Fuel
mode
Fig. 11 Menu structure

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• MENU STRUCTURE
The menu structure tree (Fig. 11) exhibits all consisting menu entries.The values of parameters are chosen for purpose of illustration
only.The buttons used to reach a particular menu entry are depicted near it.
• SETTING THE CLOCK
The controller enables you to set the current time, date and weekly timer programs.These settings do not disappear even after power supply
failure because the controller has a long-lasting battery.To look up at the current time, press button to enter theTime menu section.
The current time is indicated on the screen .To turn to the otherTime menu subsections, use buttons. The numerical
value from 1 to 4 will shortly light up in the screen, when passing each subsection.
Clock and date setting mode. Press button and change the desired values.
With buttons set the desired hour.
Press .
With buttons set the minutes value.
Press .
With buttons set the desired day.
Press .
With buttons set the month value.
Press .
With buttons set the year value. Press .
• SETTING THE WEEKLY TIMER PROGRAMS
Weekly timer activation. Press button and enter the edit mode. With buttons choose the desired value.
Weekly timer is switched o.
Weekly timer is switched on.The icon in the indicator line lights permanently.
The rst step in weekly timer programming is to describe the time intervals- programs. The description consists of specifying the
interval start time, the end time and the desired temperature. Then, the desired programs are assigned to each day of a week. The
controller permits you to create up to 6 dierent timer programs and to assign a maximum of 3 of them to each day of the week. The
programs with start time in one day and end time in the next day are also allowed. When the weekly timer is active, the icon in
the indicator line lights permanently.
Creating and editing the weekly timer programs. Press button and enter the rst program edit mode. Use
buttons to skip to another programs for editing.
First program. Press button and enter the desired values.
With buttons set the start time value. Press .
With buttons set the end time value. Press .
With buttons set the desired temperature of the program. Press for
conrmation.
Second program. Press button and enter the desired values.
With buttons set the start time value. Press .

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With buttons set the end time value. Press .
With buttons set the desired temperature of the program. Press for
conrmation.
(the third, fourth, fth programs are skipped for the purpose of illustration)
Sixth program. Press button and enter the desired values.
With buttons set the start time value. Press .
With buttons set the end time value. Press .
With buttons set the desired temperature of the program. Press for
conrmation.
Assigning programs to week days.This is performed after the programs have been created (see above). Press
button and enter the Monday edit mode. With buttons skip to another week days for editing.
Monday. 3 dierent programs can be assigned to each day of a week. Press button
and enter the desired values. If only 2 programs are planned for a particular day,
choose option OFF for one of the entries.
With buttons set the desired program number. Press .
With buttons set the desired program number. Press .
With buttons set the desired program number. Press for conrmation.
Tuesday. 3 dierent programs can be assigned to each day of a week. Press button
and enter the desired values. If only 2 programs are planned for a particular day,
choose option OFF for one of the entries.
With buttons set the desired program number. Press .
With buttons set the desired program number. Press .
With buttons set the desired program number. Press for conrmation.
(Wednesday, Thursday, Friday, Saturday are skipped for the purpose of illustration)
Sunday. 3 dierent programs can be assigned to each day of a week. Press button
and enter the desired values. If only 2 programs are planned for a particular day,
choose option OFF for one of the entries.
With buttons set the desired program number. Press .
With buttons set the desired program number. Press .
With buttons set the desired program number. Press for conrmation.

If two programs with overlapping operation time are assigned to the same day of the week, the controller,
during the overlap period, performs the program with higher title number. For example, program P6 will
have priority against P3.

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An example of created programs is presented in the table below:
P1 Program P2 Program P3 Program P4 Program P5 Program P6 Program
On O On O On O On O On O On O
23:00 4:30 4:30 7:30 17:00 23:00 00:00 7:30 7:30 24:00 7:30 23:00
16°C 19°C 19°C 16°C 19°C 16°C
The above mentioned programs are displayed in the time intervals diagram:
Day/Time 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
(d1) Monday [P1] 16°C [P2] 19°C [P3] 19°C
(d2) Tuesday [P1] 16°C [P2] 19°C [P3] 19°C
(d3)Wednesday [P1] 16°C [P2] 19°C [P3] 19°C
(d4)Thursday [P1] 16°C [P2] 19°C [P3] 19°C
(d5) Friday [P1] 16°C [P2] 19°C [P3] 19°C
(d6) Saturday [P4] 16°C [P5]19°C
(d7) Sunday [P4] 16°C [P6] 19°C
• SETTING THE ROOM TEMPERATURE
The stove is capable of sustaining the desired room temperature. It has a room temperature sensor for that purpose.The sensor must
be placed as far from the stove as its cord allows. The stove reacts to indications of the sensor and increases the heating power after
the air in the room has cooled down. When the temperature in the room rises, the stove decreases the heating power or even stops.
There are two ways to set the desired room temperature:
• use weekly timer programs;
• set the room temperature manually.
When using weekly timer, you describe time intervals for each day of a week and assign the desired temperatures to them. For more
information about time programing see the previous chapter Setting the WeeklyTimer Programs.
It is also possible to set the desired room temperature manually. If a weekly timer program is active at the same time, the manually
set room temperature temporary gains priority.This priority disappears, when the current weekly timer program ends.When the next
time program starts, the room temperature again is controlled by the weekly timer.
To view a current room temperature, press button to enter the Temperature menu section. The actual measured room
temperature value is indicated on the screen.
Actual measured room temperature.
To set the desired room temperature, press . button.The screen indicates the target temperature in the blinking mode. Increase
or decrease this value with buttons.
Target temperature value blinks.
When nished, press button for conrmation. The actual measured room temperature is indicated on the screen again.
The room temperature can be set and changed with remote control as well. It is treated by the controller the same as a manual setting.
• OUTPUT POWER REGULATION
The output power denes the maximum burning power level which will be used by the stove to heat the ambient air. There are six
power levels: . The stove increases burning power by raising
the quantity of pellets being transported by the auger per time period and the quantity of supplied air for combustion simultaneously.
If fastest possible room heating is required, set the burning power on the highest level . This level corresponds to the
stove’s rated heating output level.The output value indicates the reduced output and indications
represent proportionately the medium levels between the rated and the reduced output values of the stove.

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If the target room temperature is set, the stove chooses the optimal burning power level itself. The stove lowers the burning power
level itself for better economy, after the target room temperature has been achieved. By default, when you do not set the power level
manually the stove controller returns to the automatic power mode.Then the symbol shows on the screen.
To view the burning power setting, press button to enter the Power menu section.The current power level value is indicated
on the screen.
The burning power level can be set and changed with remote control as well.
• REGULATION OF THE ROOM VENTILATOR
The controller enables you to change the rotational speed of the room ventilator. There are six levels of the speed:
. We recommend you to let the stove itself decide upon the rotational
intensity. For this option, the speed setting must be chosen.The optimal stove control principle requires that a user of the
stove would rather set a desired room temperature with weekly timer or manually and let the stove to decide itself which burning
power and rotational speed levels are most appropriate in the given situation.
• SETTING THE FUEL OPTIONS
The Fuel menu section enables you to select the fuel quality.The quality of pellets are expressed in the following values:
. These values stand for the moisture content in pellets. The dryer the fuel, the higher fuel value in this menu
section must be chosen.
The fuel quality option in this stove is deactivated. The fuel value 1 is set irreversibly.
• MODIFYING THE SETUP OPTIONS
The Setup menu section enables you to set the options for Key lock, Idle display brightness, Idle display mode, Beeper volume and
view service information.
The Key lock option enables you to lock the keyboard on the display in order to prevent accidental changes of the
settings.With the key lock enabled, you can navigate the menu to display current values, but you cannot edit any
of the settings, except the Key lock itself. Note that this option does not disable the remote control. The Key lock
setting oers the following options:
The Key lock is disabled, all buttons are operational.
The edit mode is disabled. The Enter button is locked.
The edit and the power on/o modes are disabled. The Enter button and the Power button are locked.
We recommend using the Key lock option, when cleaning the display.
The display brightness in the idle mode can be set from 1 to 5 or set to turn o after 30 seconds.
The display switches o after 30 seconds. The lighting is restored after pressing any button.
Brightness of the display is 1.
... ...
Brightness of the display is 5.

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The Idle display mode has the following options:
The display stays in the last selected menu section. In case the menu has been in the edit mode, the changes are
discarded and the edit mode is exited.
The display exits the last selected menu section and cycles between a current room temperature and a clock.
<->
The display exits the last selected menu section and moves to theTemperature menu.The actual measured room
temperature is displayed on the screen.
The display exits the last selected menu section and moves to the Time menu. The current time is indicated on
the screen.
Beeper volume setting enables the user to change the volume of the display signals from 1 to 5 or switch the
beeper o.
The beeper is o.
The sound level is 1.
... ...
The sound level is 5.
The controller information menu subsection. Used for service purposes.
Version of the controller main board.
Version of the controller display.
The service menu subsection. Access for the authorized service personnel only.
The random 4-digit number combination is indicated on the screen.
To modify the setup options, press button to enter the Setup menu section. The set idle display brightness value is displayed.
To move between the setup options, press buttons to display the settings.To change a setting, press button and use
buttons to increase/decrease the selected values. When nished, press button to conrm the set value.
9. MAINTENANCE AND CLEANING
Regular cleaning is of crucial importance for the continued operation of the stove. Failure to follow the cleaning schedule, or the use
of dirty fuel can clog the inner spaces of the stove. These impurities can hinder air supply to the combustion chamber and cause the
stove to stop working. To prevent this outcome, it is highly recommended that the user perform the cleaning activities specically as
described in the following chapters.
• CLEANING SCHEDULE
Tasks/ Frequency Daily Once per 2-3 days Once per 30 days Once per 60-90 days Once per season
Fire pot cleaning o
Ashes drawer emptying o
Door glass cleaning o
Flame trap cleaning o
Exchanger tubes scraping o
Combustion chamber vacuuming o
Pellet hopper vacuuming o
Flue channels cleaning o
Door gasket changing o
Chimney cleaning o

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Before starting cleaning works, make sure that:
• The electrical supply switch on the rear panel of the stove is OFF;
• All stove components and ashes have cooled down suciently;
• Suitable tools will be used for cleaning;
• The electrical cable is unplugged when ue channels are to be cleaned.
When cleaning the combustion chamber, be careful and do not clog the pressure sensor’s pipe which is mounted inside, on the left wall of the chamber, under a vermiculite plate. The pipe must remain
unobstructed.
The frequency of maintenance and cleaning depends directly on the quality of pellets used. Burning high quality pellets allows you
to devote less time and attention to cleaning activities, and to increase the periods between cleanings.Vice versa, bad quality pellets
will require shorter intervals between cleaning tasks.The quality of the pellets and a sound adjustment of combustion are essential
to the reliable operation of the stove.
The pellet stove is a generator of heat and technically
sophisticated appliance. Therefore, we strongly recommend
servicing by qualied personnel at least once a year, at
the start of the heating season to ascertain and ensure
the continued function and eciency of all the stove's
components.
• EXTERIOR SURFACES CLEANING
To clean the surfaces on the painted metal parts, use a cloth
slightly moistened in water. If necessary, mild soap may also
be used. Rub the surfaces gently and with care.
Do not use any aggressive detergents or solvents – they can cause serious damage to
the surfaces of the stove. Do not scrub excessively the
metal paint - the structured paint surface changes its
shading because of rubbing impact.
• HEAT EXCHANGER TUBES CLEANING
The heat exchanger is composed of stainless steel tubes.
Smoke ows constantly around the outer surface of the
tubes leaving soot residues on them. These residues must be
removed every 2 days of operation. For this purpose, inside
the heat exchanger there is a scraper which brushes the
tubes' surfaces like a comb. Pull the handle of the scraper 1
( Fig. 12) towards yourself.To complete the cleaning session,
push and pull this handle till halting several times.
• ASHES DRAWER CLEANING
The ashes drawer must be cleaned daily or every 2 days,
depending on the length of time the stove is used and the quality
of pellets used.To access the ashes drawer, open the door, remove
the ashes drawer 4 (Fig. 12) and empty it.
•COMBUSTION CHAMBER CLEANING
Clean the combustion chamber every 2 days. Use a drum-type
vacuum cleaner for cleaning the combustion chamber. Make sure
that no ashes are left after the cleaning session.
Fig.13 Clean re pot. No residue
inside, all the holes clean and
visible.
Fig. 14 Pot with the holes
blocked by ashes. Cleaning
required.
Fig. 12 Frequently inspected elements and their locations.
1. Scraper; 2. Combustion chamber; 3. Fire pot; 4. Ashes drawer.
1
2
3
4