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PRIMULA HYDRO

RED PRIMULA HYDRO, ORCHIDEA HYDRO Use And Maintenance Manual

USE AND MAINTENANCE MANUAL
EN 14785 - 2006
Art. 15a B-VG / BImSchV / VKF AEAI
Asorbimiento electrico max:
Max. elektrisk effekt: Tensión de funcionamie nto: Tensão e l ectrica funcionam ento: Rated voltage: Netspænding: Distanci as de seguridad (retro): Distancia de segurança (trasiera): Sa fety clare n ce distance (back): Sikkerhedsafstand (bag): Distanci as de seguridad (late rales): Distancia de segurança (lateral): Safety clarence distance (side):
Sikkerhedsafstand (side):
Via La Croce 8, I - 33074 Vigonovo di Fontanafredda (PN) Italy.
10
Regensburger und Münchener BStV erfüllt.
PRIMULA HYDRO / O RC HIDEA HYDRO
M ax 21,0 (17,0k W - 4,0kW) M in 4,4kW ( 3,0kW - 1,4kW)
1,7 m g/ Nm 3 (13% O2)
1,2 mg/ M J
150°C
P max
P min
92,5% 95,0%
P max
P min
0,012% 0,040%
230 V - 50 Hz.
420 W
(Med. 120 W)
Potência electrica absorbida: Max. electrical power supply:
Presión máxima de agua:
2,5 bar
Pressão máx i ma da á gua: Permissible max. water pressure: Ma x. vandtryk:
Producto conforme a la instalación de tubos múltiples. Produto conforme para instalação em condutas multiplas . Appliance suitable for installation in a shared flue. Apparatet kan bruges i en røggassamleledning.
Utilizar sólo con combustibles adaptados. Utilizar somente combustivel adaquado. Use only recom mended fuels. Anvend kun anbefalede brændsler.
Leer y se guir las instrucciones! Leia a tentamente e siga a s
instruções! Leggere e seguire le istruzioni! Read and follow the
operating instructions! Følg fabrikantens brugervejledning!
COD: 8901020900
100 mm
100 mm
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PELLET STOVES
Contents
INSTALLATION AND USE MANUAL
page
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Contents Technical service - Rights reserved - Reproduction prohibited
INTRODUCTION .................................................................................................................................... 5
1. WARNINGS AND GUARANTEE CONDITIONS ..................................................................................... 6
1.1. SAFETY INSTRUCTIONS .................................................................................................................. 6
1.2. OPERATING WARNINGS .................................................................................................................. 7
1.3. GUARANTEE CONDITIONS .............................................................................................................. 8
1.3.1. Limitations ............................................................................................................................... 8
1.3.2. Exclusions ................................................................................................................................ 8
2. THEORETICAL NOTIONS FOR INSTALLATION ................................................................................ 10
2.1. Pellets .......................................................................................................................................... 10
2.2. PRECAUTIONS FOR INSTALLATION ................................................................................................ 11
2.3. OPERATING AREA ......................................................................................................................... 12
2.4. CONNECTION TO THE EXTERNAL AIR INTAKE ................................................................................ 12
2.5. CONNECTION OF SMOKE DISCHARGE PIPE .................................................................................... 13
2.6. CONNECTION TO THE FLUE PIPE ................................................................................................... 14
2.7. CONNECTION TO AN EXTERNAL FLUE WITH INSULATED OR DOUBLE-WALL PIPE ............................. 14
2.8. CONNECTION TO THE FLUE PIPE ................................................................................................... 14
2.9. OPERATING PROBLEMS CAUSED BY DRAUGHT DEFECTS IN THE FLUE ............................................. 15
2.10. PLUMBING CONNECTION ........................................................................................................... 16
3. INSTALLATION AND ASSEMBLY ...................................................................................................... 17
3.1. DRAWINGS AND TECHNICAL CHARACTERISTICS ............................................................................ 17
3.1.1. PRIMULA /ORCHIDEA Hydro ................................................................................................... 17
3.1.2. Technical characteristics ......................................................................................................... 18
3.2. PREPARATION AND UNPACK ING ................................................................................................... 19
3.3. LATERAL CLADDING ASSEMBLY ..................................................................................................... 21
3.4. PLUMBING SYSTEM CONNECTION ................................................................................................. 23
3.4.1. Connections to the system ...................................................................................................... 24
3.4.2. System filling ......................................................................................................................... 25
3.4.3. Water characteristics .............................................................................................................. 25
3.5. EXAMPLE INSTALLATION DIAGRAMS ............................................................................................. 26
3.5.1. Heating installation diagram .................................................................................................... 26
3.5.2. Heating installation diagram in combination with a boiler ........................................................... 27
3.5.3. Heating installation in combination with a storage tank .............................................................. 27
4. OPERATION ..................................................................................................................................... 28
4.1. PRE-LIGHTING WARNINGS ............................................................................................................ 28
4.2. PRE-LIGHTING CHECK .................................................................................................................. 29
4.3. LOADING THE PELLETS ................................................................................................................. 29
4.4. CONTROL PANEL .......................................................................................................................... 29
4.5. SETTINGS TO CARRY OUT BEFORE FIRST LIGHTING ...................................................................... 30
4.5.1. SETTING CURRENT TIME ........................................................................................................ 30
4.5.2. Memorization of recipe on stove. ............................................................................................. 30
4.6. CONTROL OF WATER TEMPERATURE IN BOILER ............................................................................ 31
4.7. FIRST LIGHTING .......................................................................................................................... 31
4.7.1. Lighting the stove................................................................................................................... 31
4.7.2. Extinguishing the stove ........................................................................................................... 32
4.8. VIEW OF THE FLAMES .................................................................................................................. 32
4.8.1. The shape ............................................................................................................................. 32
4.8.2. The colour ............................................................................................................................. 33
4.8.3. The character ........................................................................................................................ 33
4.9. OPERATION ................................................................................................................................. 33
4.9.1. Operating concept .................................................................................................................. 33
4.9.2. Operating modes .................................................................................................................... 34
4.9.2.1. Internal thermostat - Position of internal room sensor ......................................................... 35
4.9.2.2. Operation by means of external thermostat ....................................................................... 35
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4.9.2.3. Connection of external thermostat .................................................................................... 35
4.9.3. Setting of ECO-STOP mode ..................................................................................................... 35
4.9.3.1.
Activation /de-activation of ECO-STOP mode
...................................................................... 37
4.9.3.2. OPERATION TO BE CARRIED OUT BY THE INSTALLER ....................................................... 37
4.9.4. Programmed mode (with timer) ............................................................................................... 37
4.9.4.1.
Start day (code on display UT 01)
..................................................................................... 37
4.9.4.2.
Clock (code on display UT 02 and UT 03)
........................................................................... 38
4.9.4.3.
Programme
..................................................................................................................... 39
4.10. EXAMPLE OF PROGRAMMING ..................................................................................................... 41
4.11. SAFETY DEVICES ....................................................................................................................... 43
4.11.1. Alarm signalling .................................................................................................................. 45
4.11.2. Other signals on the display ................................................................................................. 46
4.12. SHUTTING THE STOVE DOWN ................................................................................................... 46
5. MAINTENANCE AND CLEANING ...................................................................................................... 47
5.1. DAILY AND WEEKLY CLEANING BY THE USER ................................................................................. 47
5.1.1. Before each lighting ................................................................................................................ 47
5.1.2. Check every 2/3 days ............................................................................................................. 47
5.1.3. Cleaning the glass .................................................................................................................. 47
5.1.4. Clean the exchanger and the undergrate space every 2/3 days. ................................................. 48
5.2. PERIODIC CLEANING BY A SPECIALISED TECHNICIAN .................................................................... 49
4.1.1.1.
CLEANING THE EXCHANGER AND PIPE UNIT (SUITE/MUSA and CLUB):
............................... 49
5.2.1. Shutting the stove down (end of season) ................................................................................. 50
5.2.2. Check of internal components ................................................................................................. 50
6. PROBLEMS / CAUSES / SOLUTIONS ............................................................................................... 52
7. ELECTRICAL DIAGRAMS .................................................................................................................. 55
7.1. ELECTRICAL DIAGRAM OF PRIMULA ORCHIDEA Hydro WITH NO DOMESTIC HOT WATER KIT ........... 55
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Introduction Technical service - Rights reserved - Reproduction prohibited
INTRODUCTION
Dear Customer, We wish to thank you for choosing one of our products, specifically a
stove from the Pellet line.
In order to get the best performance from your stove and to enjoy to the full the warmth and the sense of well-being which the flame will diffuse through the home, we recommend that you read this booklet carefully before lighting the s
tove for the first time. While thanking you again, may we remind you that the stove MUST
NOT be used by children, and that they must always be kept at a safe
distance from it!
Revisions to the publication
In order to improve the product, to keep this publication up to date the manufacturer reserves the right to make modifications without any advance notice. Any reproduction, even in part, of this manual without the consent of the manufacturer is prohibited.
Care of the manual and how to consult it
Take good care of this manual and keep it in a place which can
easily and quickly be reached.
If this manual should be lost or destroyed, or if it is in poor
condition, ask for a copy from your retailer or directly from the manufacturer, providing product identification data.
Information which is essential or that requires special attention is
shown in bold text.
Italic text
is used to call your attention to other paragraphs in the
manual or for any additional clarifications.
SYMBOLS USED IN THE MANUAL
ATTENTION
This warning sign indicates that the message to which it refers should be carefully read and understood, because failure to comply with what these notices say can cause serious damage to the stove and put the user's safety at risk.
INFORMATION This symbol is used to highlight information which is
important for proper stove operation. Failure to comply with these provisions will compromise use of the stove and its operation will not be satisfactory.
OPERATING SEQUENCES:
Indicates a sequence of buttons to be pushed to access menus or to make adjustments.
MANUAL
Indicates that you should carefully read this manual or the related instructions.
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Warnings and guarantee conciliations Technical service - Rights reserved - Reproduction prohibited
1. WARNINGS AND GUARANTEE CONDITIONS
1.1. SAFETY INSTRUCTIONS
Installation of the stove, making the electrical
connections, checking its operation, and maintenance are all tasks which should be carried out by qualified and authorised personnel.
Install the stove in accordance with the
regulations in force in your local area, region and country.
This apparatus cannot be used by people
(including children with limited physical, sensorial or mental abilities or with little experience and know-how unless they have been viewed or instructed on the use of the apparatus by the person responsible for its safety.
For the correct use of the stove and of the electronic
apparatus connected to it, and to prevent accidents, the instructions given in this booklet must always be followed.
Use, adjustment and programming must be carried out
by adults. Errors or incorrect settings may cause hazardous conditions and/or poor operation.
Before beginning any operation, the user, or whoever is
preparing to operate on the stove, must have read and understood the entire contents of this instruction booklet.
The stove is to be used only for its intended purpose.
Any other use is to be considered improper and therefore hazardous.
Do not use the stove for standing on or as any kind of
support.
Do not put clothes to dry on the stove Any clothes
hangers and suchlike must be kept a suitable distance from the stove. Danger of fire.
The user is fully liable for improper use of the product,
thus releasing the company from all civil or penal liabilities.
Any tampering or replacement that is unauthorised or
not using original spare parts for the stove could be hazardous to the user and releases the company from any civil or penal liability.
Most of the surfaces of the stove are extremely hot (the
door, the handle, the glass, smoke discharge pipes etc.). Avoid coming into contact with these parts, therefore, without adequate protective clothing or suitable implements, such as gloves with thermal protection or implements which keep the hands cool.
Under no circumstances should the stove be run
with the door open or the glass broken.
Do not touch the stove with wet hands, in view of the
fact that it is an electrical appliance. Always disconnect the supply cable before doing anything to the unit.
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Before carrying out any cleaning or maintenance
operation, make sure in advance that the stove is disconnected from the mains electricity supply, by turning off the main switch located on the back of the stove, or by unplugging the supply cable.
The stove must be electrically connected to a system
equipped with an effective earth conductor.
The system must be of adequate rated capacity for the
stated electrical power of the stove.
Incorrect installation or poor maintenance (not
compliant with the provisions set out in this manual) may cause damage to persons, animals or objects. The company is not civilly or criminally liable in these cases.
1.2. OPERATING WARNINGS
Shut the stove down in the event of a breakdown or
bad running.
Pellets must not be fed manually into the burner. Accumulated unburnt pellets in the burner after each
"failed ignition" must be removed before igniting it again.
Do not wash the inside of the stove with water. Do not wash the stove with water. The water could get
inside the unit and damage the electrical insulation and cause electric shocks.
Do not expose your own body to hot air for extended
periods. Do not overheat the room you are in and where the stove is installed. This could cause injuries and health problems.
Do not expose plants or animals to a direct hot air flow.
There could be harmful effects on them.
Do not put any fuels in the hopper but wood pellets. Install the stove in a location with adequate means of
fire-prevention and equipped with all services such as power supply (air and electricity) and fume discharge.
If there is a fire in the flue pipe, extinguish the stove,
disconnect it from the power supply and never open the door. Then contact the competent authorities.
If the stove and the ceramic cladding are in storage, it
should be in a place that is free of damp, and they should not be exposed to extremes of temperature.
It is inadvisable to base the stove directly on the floor,
and if the floor is made of flammable material, it must be suitably insulated.
Do not light the stove with flammable materials if the
ignition system breaks down.
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INFORMATION For any problems, please contact your dealer or
company qualified and authorised personnel and always request original spare parts for repairs.
Only use the fuel recommended by the company (for
ITALY only 6mm diameter pellets whereas for the other European countries, pellets with a diameter of 6-8 mm) and only supplied by the automatic feed system.
Periodically check and clean the smoke outlet ducts
(connection to the flue pipe).
The pellet stove is not a cooking appliance. Always keep the cover of the fuel hopper closed. Keep this instruction manual carefully because it must
stay with the stove throughout its working life. If the stove is sold or transferred to another user, always make sure that the booklet goes with the product.
If lost, please request a copy from your dealer or from
the company.
1.3. GUARANTEE CONDITIONS
The company guarantees the stove, excluding the components which are subject to normal, for a period
of two years from the date of purchase, as proved by a supporting document which gives the name of the vendor and the date on which the sale took place. The guarantee is conditional on the guarantee certificate being filled in and returned within 8 days, and requires that the product be installed and tested by a specialised installer, according to the detailed instructions given in the instruction booklet supplied with the product.
The term 'guarantee' is to be understood to denote the free­of-charge replacement or repair of parts recognised to
have been defective at the start by reason of manufacturing defects.
1.3.1. Limitations
The above guarantee does not cover components relating to electrical and electronic parts, or fans, on which the guarantee period is 1 year from the purchase of the product, documented as specified above. The guarantee does not cover parts subject to normal wear such as gaskets, glass, and any parts with can be removed from the firebox.
The replacement parts will be guaranteed for the remainder of the guarantee period starting from the date of purchase of the product.
1.3.2. Exclusions
Variations in colour in the painted or ceramic parts, and crackling of the glaze on the ceramics, do not constitute grounds for a claim under the guarantee, as they are natural characteristics of the material and of the use of the product.
The guarantee will not cover all parts which are found to be faulty due to negligence or careless use, incorrect maintenance, installation not conform with that specified by the company (see relative chapters in this manual for use).
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The company is not liable for any damages caused directly or indirectly, to persons, animals or objects consequent to the non-observance of all the instructions given in this manual, especially the cautions relating to installation, use and maintenance.
If the product does not perform correctly, contact your local retailer and/or importer.
Damage caused by transport and/or handling is excluded from the guarantee.
For installation and use of the product, reference must be made exclusively to the booklet supplied.
The guarantee will be invalidated in the event of damage caused by tampering with the appliance, atmospheric agents, natural disasters, electrical discharges, fire, defects in the electrical system, and caused by lack of, or incorrect, maintenance in terms of the manufacturer's instructions.
CLAIMS UNDER THE GUARANTEE
the request for action under the guarantee must be addressed to the retailer, who will forward the claim technical assistance service.
The company is not liable in the event that the product and any other accessory is improperly used or modified without authorisation.
Only original spare parts must be used for all replacements.
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Theoretical notions for installation Technical service - Rights reserved - Reproduction prohibited
2. Theoretical notions for installation
2.1. Pellets
Wood pellets are manufactured by hot-extruding compressed sawdust which is produced during the working of natural dried wood. The compactness of the material comes from the lignin which is contained in the wood itself, and allows the production of pellets without the use of glues or binders.
The market offers different types of pellet with characteristics which vary depending on what mixture of woods is used. The diameter varies between 6 mm and 8 mm, with a standard length in the range 5 mm to 30 mm. Good quality pellets have a density which varies between 600 kg/m3 and 750 kg/m3, with a moisture content which varies from 5% to 8% by weight.
Besides being an ecological fuel (exploiting timber residues to the maximum and achieving cleaner combustion than is possible with fossil fuels), pellets also have technical advantages. While good-quality timber has a calorific power of 4.4 kW/kg (with 15% moisture, therefore after about 18 months' seasoning), the equivalent figure for pellets is 4.9 kW/kg.
To ensure good combustion, the pellets must be stored in an area that is free of humidity and protected from dirt. The pellets are usually supplied in 15 kg. sacks, so storing them is very convenient.
Good quality pellets ensure good combustion, thus lowering the emission of harmful agents into the atmosphere.
The poorer the quality of the fuel, the more frequently will intervention be necessary for cleaning the internal parts, such as the grate and the combustion chamber.
The main certifications of quality for pellets in the European market are DINplus and Ö-Norm M7135; these ensure respect of:
Calorific power: 4.9 kW/kg Water content: max 10% of weight Percentage of ashes: max 0,5% of weight Diameter: 5 – 6mm Length: max 30mm Contents: 100% untreated wood, with no added bonding
substances (bark percentage 5% max)
Packaging: in sacks made from ecologically compatible or
biologically decomposing material
Fuel pellets
15 Kg sack of fuel
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The company strongly recommends the use of certified fuel for its stoves (DINplus and Ö-Norm M7135).
The use of fuel of inferior quality or not conforming to the specification given above compromises the running of your stove and can therefore lead to the termination of the guarantee and of the manufacturer's responsibility for the product.
Pellet stoves only work with pellets having a diameter of 6-8 mm with a length ranging from 5mm to max 30 mm.
2.2. PRECAUTIONS FOR INSTALLATION
IMPORTANT! Installation and assembly of the stove must be
carried out by qualified personnel.
The stove must be installed in a suitable position to allow the normal operations of opening and ordinary maintenance.
The site must be:
capable of providing the environmental conditions for operation equipped with power supply 230V 50 Hz capable of taking an adequate system for smoke discharge provided with external ventilation provided with an earth connection complying with CEI 64-8
The stove must be connected to a flue pipe or an internal or external vertical duct conforming to current standards UNI 7129 - 7131 9615.
The stove must be positioned in such a way that the electrical plug is accessible.
IMPORTANT! The stove must be connected to a flue pipe or a
vertical duct which can discharge the fumes at the highest point of the building.
The fumes are however derived from the combustion of wood products, and if they come into contact with or close to walls, they can make dirty marks.
Also take care because the fumes are very hot but almost invisible, and can cause burns on contact.
The holes for the passage of the smoke pipe and for the intake of air from outside should be made before positioning the stove unit.
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2.3. OPERATING AREA
For proper functioning and a good temperature distribution, the stove should be positioned in a location where it is able to take in the air necessary for combustion of the pellets (about 40 m
3
/h must be available), as laid down in the standard governing the installation and in accordance with local national standards. The volume of the room must not be less than 30 m
3.
The air must come in through permanent openings made in walls (in proximity to the stove) which give onto the outside, with a minimum cross-section area of 100 cm
2
. These openings must be made in such a way that it is not possible for them to be obstructed in any way. Alternatively, the air can be taken from rooms adjacent to the one which needs ventilating, as long as they are provided with an air intake from the outside, and are not used as bedrooms or bathrooms, and provided there is no fire risk such as there is for example in garages, woodsheds, and storerooms, with particular reference to what is laid down in current standards.
It is not permissible to install the stove in bedrooms, bathrooms, or in a room where another heating appliance is installed (fireplace, stove etc.) which does not have its own independent air intake.
Locating the stove in a room with an explosive atmosphere is prohibited. The floor of the room where the stove is to be installed must be strong enough to take its weight.
If the walls are not flammable, position the stove with a clearance to the rear of at least 10 cm.
For flammable walls, keep a minimum distance of 10 cm at the rear "A", 10 cm on the sides "B" and 150 cm at the front. If the room contains objects which are believed to be particularly delicate, such as drapes, sofas and other furniture, their distance from the stove should be considerably increased.
If the flooring is made of wood, provide a floor protection surface in compliance with current national standards.
2.4. CONNECTION TO THE EXTERNAL AIR INTAKE
It is essential that at least as much air must be able to flow into the room where the stove is installed as is required for proper combustion in the appliance and for the ventilation of the room. This can be effected by means of permanent openings in the walls of the room to be ventilated, which give onto the outside, or by single or collective ventilation ducts. For this purpose, on the external wall near the stove, a hole must be made with a minimum free cross-section of 100 cm². (equivalent to a round hole of 12 cm diameter or a square hole 10x10 cm), protected by a grille on the inside and the outside. The air intake must also:
communicate directly with the room where the stove is installed be protected by a grille, metal mesh or suitable guard, as long as
this does not reduce the area below the minimum.
be positioned in such a way as to be impossible to obstruct
Example of pellet stove installation
Example of pellet stove installation (for
flammable walls)
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1
2
It is not compulsory to connect the air intake directly with the stove (so that it draws air directly from outside), but it is essential at all events to ensure an airflow of 50 cubic metres per hour by the use of a hole of the dimensions given.
See standard UNI 10683.
2.5. CONNECTION OF SMOKE DISCHARGE PIPE
When making the hole for the passage of the smoke discharge pipe, it is necessary to take into account the possible presence of flammable materials. If the hole will be going through a wall made of wood or any other material which is sensitive to heat, the INSTALLER MUST first of all use the special wall union (diam.13cm 13cm minimum) and properly insulate the pipe of the stove that passes through it, using adequate insulation materials (thickness 1.35cm with minimum thermal conductivity of 0.07 W/m°K).
The same is true if the stove pipe must run through vertical or horizontal stretches passing in proximity (min.20cm) to the heat­sensitive wall
As an alternative we recommend the use of insulated pipe, which can also be used on the outside to avoid condensation.
The combustion chamber works in low pressure. The smoke duct for the discharge of fumes will also be under low pressure when connected to an efficient flue pipe as directed.
Pipes and unions with suitable gaskets must always be used, to guarantee a hermetic seal.
All sections of the smoke duct must be inspectable and removable to enable periodic internal cleaning. Tee connectors with inspection caps should be used.
Position the stove bearing in mind all the instructions and considerations above.
IMPORTANT! All 90 degree changes of direction in the flue pipe
must be fitted with suitable tee connectors to allow the possibility of inspection. (see accessories for pellet stove)
It is absolutely prohibited to fit a grille on the end of the discharge pipe, because it could lead to poor running of the stove.
FOR CONNECTION TO THE FLUE PIPE, NOT MORE THAN 2-3 METRES OF HORIZONTAL PIPE MUST BE USED AND NOT MORE THAN THREE 90° CURVES MUST BE USED
IT IS ALSO ADVISABLE NOT TO EXCEED 6 METRES IN LENGTH WITH THE PIPE Ø 80 mm
Example of pellet stove installation
Rear view of a pellet stove (example)
1) Combustion air intake
2) Smoke outlet
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2.6. CONNECTION TO THE FLUE PIPE
The flue pipe must have internal dimensions not larger than 20 x 20 cm, or diameter 20 cm. In the event of larger dimensions, or of the flue pipe being in poor condition (for example cracks, poor insulation, etc.), it is advisable to fit a stainless steel pipe of suitable diameter inside the flue pipe throughout its length, right up to the top. Check with suitable instruments that there is a minimum draught of 10 Pa. At the bottom of the flue pipe, provide an inspection cap to allow periodic checking and cleaning, which must be done annually. Make a gas-tight connection to the flue pipe, using pipes and connectors as recommended by us. You must ensure that a windproof cowl should be fitted which complies with the standards in force.
This type of connection ensures the evacuation of the fumes even in the event of a temporary power cut.
2.7. CONNECTION TO AN EXTERNAL FLUE WITH INSULATED OR DOUBLE-WALL PIPE
The external fluepipe must have internal dimensions of minimum 10x10 cm or 10 cm diameter, and maximum 20x20 cm or 20 cm diameter. Check with suitable instruments that there is a minimum draught of 10 Pa. The only type of pipe which is permissible is insulated (double-walled) stainless steel, smooth on the inside, fixed to the wall. Flexible stainless steel pipe must not be used. At the bottom of the flue pipe, provide an inspection cap to allow periodic checking and cleaning, which must be done annually. Make a gas-tight connection to the flue pipe, using pipes and connectors as recommended by us. You must ensure that a windproof cowl should be fitted which complies with the standards in force.
This type of connection ensures the evacuation of the fumes even in the event of a temporary power cut.
2.8. CONNECTION TO THE FLUE PIPE
For proper functioning, the connecting pipe between the stove and the chimney or flue duct must have a slope of not less than 3% in the horizontal stretches, the length of which must not exceed 2/3 metres, and the vertical distance between one tee connector and another (change of direction) must not be less than 1.5m. Check with suitable instruments that there is a minimum draught of 10 Pa. At the bottom of the flue pipe, provide an inspection cap to allow periodic checking and cleaning, which must be done annually. Make a gas-tight connection to the flue pipe, using pipes and connectors as recommended by us. You must ensure that a windproof cowl should be fitted which complies with the standards in force.
This type of connection ensures the evacuation of the fumes even in the event of a temporary power cut.
1) Windproof cowl
2) Flue pipe
3) Inspection
1) Windproof cowl
2) Flue pipe
3) Inspection
1) Windproof cowl
2) Flue pipe
3) Inspection
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2.9. OPERATING PROBLEMS CAUSED BY DRAUGHT DEFECTS IN THE FLUE
Of all the weather and geographical conditions which affect the operation of a flue pipe (rain, fog, snow, altitude a.s.l., exposure to sunlight, direction of facing), the wind is unquestionably the most decisive. In fact, along with thermal depression caused by the difference in temperature inside and outside of the chimney, there is another type of depression or over-pressure: dynamic pressure caused by the wind. An updraft always increases depression and hence draught. A crosswind increases depression provided the cowl has been installed properly. A downdraft always decreases depression, at times inverting it.
Besides the direction and force of the wind, the position of the flue and the cowl with respect to the roof of the building and the surrounding landscape is important.
The wind also influences the operation of the chimney indirectly by creating high-pressure and low-pressure zones, not only outside the building but inside as well. In rooms directly exposed to the wind (2), an indoor high-pressure area can be created which can augment the draught in stoves and fireplaces, but it can be counteracted by the external high pressure if the cowl is situated on the side exposed to the wind (1). On the other hand, in the rooms on the opposite side from the direction of the wind (3), a dynamic depression can be created which competes with the natural thermal depression developed by the chimney, but this can be compensated for (sometimes) by locating the flue on the opposite side from the direction of the wind (4).
IMPORTANT! The operation of the pellet stove is noticeably
sensitive to the conformation and position of the flue which is adopted.
Hazardous conditions can only be overcome by suitable setting-up of the stove carried out by qualified personnel.
1
2 3
4
E.g. Crosswind 2: 8 m/sec
Depression of 30Pa
E.g. Downdraft at 45° of 8m/sec. Overpressure of 17 Pa
1-2 = High-pressure zones 3-4 = Low-pressure zones
WIND
Least favourable points
Most favourable position
WIND
Downdraft
High-pressure
Low-pressure zone
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PELLET STOVES Chapter 2
INSTALLATION AND USE MANUAL
page
16
Plumbing connection Technical service - Rights reserved - Reproduction prohibited
2.10. PLUMBING CONNECTION
IMPORTANT!
The connection of the stove to the plumbing system must be carried out ONLY
by specialized personnel who are capable of carrying out installation properly, in compliance with current standards in the country of installation.
If installation of the stove will involve interaction with another, pre-existing system complete with heating equipment (gas boiler, methane boiler, fuel oil boiler, etc.), it is even more advisable to call in qualified personnel, who subsequently will be responsible for conformity of the system with current applicable law.
The Company will not be held responsible for damage to persons or things in the event of failed or incorrect operation if the aforementioned warnings are not complied with.
For connection of the plumbing system to the stove, the user should refer to chapter 3, INSTALLATION AND ASSEMBLY; specifically, paragraph 3.4, CONNECTION TO PLUMBING SYSTEM
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PELLET STOVES Chapter 3
INSTALLATION AND USE MANUAL
page
17
Installation and assembly Technical service - Rights reserved - Reproduction prohibited
3. INSTALLATION AND ASSEMBLY
3.1. DRAWINGS AND TECHNICAL CHARACTERISTICS
3.1.1. PRIMULA /ORCHIDEA Hydro
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