Unical STILE 27 Instructions For Installation, Maintenance And Use

Download

STILE 27

00334578 - 05/13 rev. 0

INSTRUCTIONS FOR INSTALLATION, MAINTENANCE AND USE

General information

TABLE OF CONTENTS

1 GENERAL INFORMATION ............................................................................................................................................................................ 4

1.1 Symbols used in the manual ........................................................................................................................................................................ 4

1.2 Appropriate use of appliance ....................................................................................................................................................................... 4

1.3 Water treatment ............................................................................................................................................................................................ 4

1.4 Information for user ...................................................................................................................................................................................... 4

1.5 Safety warnings ............................................................................................................................................................................................ 5

1.6 Technical data plate ...................................................................................................................................................................................... 5

1.7 General warnings ......................................................................................................................................................................................... 6

2 TECHNICAL FEATURES AND DIMENSIONS ........................................................................................................................................... 7

2.1 Technical features ........................................................................................................................................................................................ 7

2.2 Dimensions and hydraulic connections ...................................................................................................................................................... 7

2.3 Technical data ............................................................................................................................................................................................. 11

2.4 Supply..........................................................................................................................................................................................................11

2.5 Main components ....................................................................................................................................................................................... 12

2.6 General Information .................................................................................................................................................................................... 12

3 INSTALLATION INSTRUCTIONS ............................................................................................................................................................... 14

3.1 General warnings ...................................................................................................................................................................................... 14

3.2 Installation standards ................................................................................................................................................................................ 15

3.3 Packaging .................................................................................................................................................................................................. 16

3.4 Installation .................................................................................................................................................................................................. 16

3.5 Flue connection ......................................................................................................................................................................................... 17

3.5.1 Exhaust through external wall........................................................................................................................................................ 18

3.5.2 Exhaust through roof by means of traditional flue ........................................................................................................................ 19

3.6 Connecting heat stove to system ............................................................................................................................................................ 20

3.7 Filling the system....................................................................................................................................................................................... 20

4 ELECTRICAL CONNECTIONS .................................................................................................................................................................... 21

5 HEAT STOVE START-UP .............................................................................................................................................................................. 24

5.1 Commissioning .......................................................................................................................................................................................... 24

5.2 Initial lighting checks ................................................................................................................................................................................. 24

6 INSPECTION AND MAINTENANCE ........................................................................................................................................................... 25

6.1 Troubleshooting ......................................................................................................................................................................................... 28

7 PROGRAMMING SETTING ........................................................................................................................................................................... 29

7.1 Using the product ...................................................................................................................................................................................... 29

7.2 Remote control .......................................................................................................................................................................................... 30

7.3 Function of buttons ................................................................................................................................................................................... 32

7.4 Menu ........................................................................................................................................................................................................... 33

7.4.1 User menu ........................................................................................................................................................................................ 33

7.4.2 Menu 01 - set clock ........................................................................................................................................................................ 35

7.4.3 Menu 02 - set chrono ..................................................................................................................................................................... 35

7.4.4 Menu 03 - choose language........................................................................................................................................................... 39

7.4.5 Menu 04 - standby mode ............................................................................................................................................................... 39

7.4.6 Menu 05 - buzzer mode ................................................................................................................................................................. 39

7.4.7 Menu 06 - initial load ....................................................................................................................................................................... 39

7.4.8 Menu 07 - heat stove status .......................................................................................................................................................... 40

7.5 User operating mode ................................................................................................................................................................................ 41

7.5.1 Lighting STILE 27 ............................................................................................................................................................................. 41

7.5.2 Start-up............................................................................................................................................................................................ 41

7.5.3 Failed ignition ................................................................................................................................................................................... 41

7.5.4 Heat stove working......................................................................................................................................................................... 42

7.5.5 Changing room temperature setting .............................................................................................................................................. 42

7.5.6 Using external thermostat / chronothermostat............................................................................................................................. 42

7.5.7 Changing water temperature setting ............................................................................................................................................. 43

7.5.8 The room temperature reaches the set temperature (SET temperature) .................................................................................. 43

7.5.9 The water temperature reaches the set temperature (SET water temperature) ....................................................................... 44

7.5.10 Restarting after extinction having reached set room and/or water temperature ..................................................................... 44

7.5.11 Cleaning the brazier ..................................................................................................................................................................... 45

7.5.12 Heat stove extinction .................................................................................................................................................................... 45

7.5.13 Heat stove off ................................................................................................................................................................................ 46

7.5.14 Heat stove re-ignition ................................................................................................................................................................... 46

7.6 What happens if......................................................................................................................................................................................... 47

7.6.1 The pellet does not light ..................................................................................................................................................................47

7.6.2 Electric power is missing ................................................................................................................................................................ 47

7.7 Alarms ........................................................................................................................................................................................................ 48

7.7.1 Flue gas temperature probe alarm ................................................................................................................................................ 48

7.7.2 Flue gas overtemperature alarm ................................................................................................................................................... 48

General information

7.7.3 Failed ignition alarm......................................................................................................................................................................... 49

7.7.4 Extinction during working phase alarm ......................................................................................................................................... 49

7.7.5 Screw safety pressure switch alarm............................................................................................................................................. 49

7.7.6 General thermostat alarm .............................................................................................................................................................. 50

7.7.7 Flue gas intake fan fault alarm ....................................................................................................................................................... 50

7.8 Operational mode (technical menu)......................................................................................................................................................... 51

7.8.1 Submenu 08 - 01 - 01 ..................................................................................................................................................................... 53

7.8.2 Submenu 08 - 02 - 01 chimney type ............................................................................................................................................. 53

7.8.3 Submenu 08 - 03 database ............................................................................................................................................................ 53

7.8.4 Submenu 08 - 04 various settings ................................................................................................................................................. 53

7.8.5 Submenu 08 - 05 outputs test........................................................................................................................................................ 53

7.8.6 Submenu 08 - 06 factory settings ................................................................................................................................................. 53

7.8.7 Submenu 08 - 07 reset partial hours............................................................................................................................................. 53

7.8.8 Submenu 08 - 08 alarm reset ........................................................................................................................................................ 54

7.8.9 Submenu 08 - 09 counter memories ............................................................................................................................................. 54

7.8.10 Flue gas probe calibration ............................................................................................................................................................. 54

General information

Attention: this manual contains instructions for the exclusive use of the professionally qualified installer and/or maintenance technician in compliance with current legislation. The user is NOT qualified to intervene on the heat stove. The manufacturer will not be held liable in case of damage to persons, animals or objects resulting from failure to comply with the instructions contained in the manuals supplied with the heat stove.

GENERAL INFORMATION

1.1 - SYMBOLS USED IN THE MANUAL

Pay special attention when reading this manual to the parts marked by the symbols:

DANGER! Serious danger for personal safety and life

ATTENTION! Possible hazardous situation for the product and the environment

1.2 - APPROPRIATE USE OF APPLIANCE

The STILE 27 appliance has been built according to the current level of engineering and acknowledged technical safety rules. Nonetheless, if improperly used, dangers could arise for the safety and the very life of the user and other persons or damage to the equipment or other objects. The appliance is intended to operate in hot air circulation heating systems. Any other use must be considered improper. UNICAL shall not be held liable for any damage resulting from improper use; in this case the user is fully responsible for the risk. Use according to the intended purposes also includes careful compliance with the instructions in this manual.

NOTE! Suggestions for the user

1.3 - WATER TREATMENT (see specific booklet)

• The hardness of the feed water conditions the frequency at which the domestic hot water exchanger must be cleaned.

• If the water has a hardness greater than 15°f, we recommend using water softeners, chosen according to the characteristics of the water.

• We recommend checking and cleaning the eventual domestic hot water exchanger at the end of the first year of use and every two years thereafter.

1.4 - INFORMATION FOR USER

• The user must be instructed concerning the use and operation of his heating system, in particular:

• Deliver these instructions to the user, as well as other documents concerning the appliance inserted in the

envelope contained in the packaging. The user must keep this documentation so that it is available for further consultation.

• Inform the user about the importance of the air vents and the flue gas exhaust system, highlighting their essential features and the absolute prohibition of modifying them.

• Inform the user concerning controlling the system’s water pressure as well as operations to restore it.

• Inform the user concerning correct temperature control, control units/thermostats and radiators for saving energy.

• Remember that the system must receive regular maintenance once a year and a combustion analysis must be performed in the timetable foreseen by standards in force.

• Should the appliance be sold or transferred to a new owner or if you move and leave the appliance, always make sure that the instruction booklet accompanies it in order to be consulted by the new owner and/or installer.

1.5 - SAFETY WARNINGS

ATTENTION! The appliance must be installed, adjusted and maintained by professionally qualified personnel, in compliance with standards and provisions in force. Incorrect installation can cause damage to persons, animals and objects for which the manufacturer cannot be held responsible.

DANGER! NEVER attempt performing maintenance or repairs on the heat stove on your own initiative. Any work must be done by professionally qualified personnel. We recommend stipulating a maintenance contract. Insufficient or irregular maintenance can jeopardise the operating safety of the appliance and cause damage to persons, animals and objects for which the manufacturer cannot be held responsible.

Modifying parts connected to appliance

Do not modify the following parts:

- the heat stove

- the air, water and electricity lines

- the flue gas pipe, safety valve and heating water drain pipe

- construction parts which affect the operating safety of the appliance

General information

Attention!

To tighten or loosen the screwed fittings, use only appropriate fixed spanners. Incompliant use and/or inappropriate tools can cause damage (e.g. water leakage).

Explosive and easily flammable substances Do not use or store explosive or easily flammable materials (e.g. petrol, paints, paper) in the room where the appliance is installed.

1.6 - TECHNICAL DATA PLATE

The technical data plate is adhesive and is applied on the back of the heat stove body. The serial number of the heat stove is on the riveted plaque on the body (upper left side), visible by removing the top.

General information

1.7 - GENERAL WARNINGS

The instruction booklet is an integral and essential part of the product and must be kept by the user or system manager.

Read the warnings contained in this instruction booklet carefully as they provide important guidelines regarding installation, use and maintenance safety.

Keep the booklet with care for further consultation.

Installation and maintenance must be performed in compliance with standards in force according to the instructions of the manufacturer and by qualified and certified personnel in compliance with law.

By professionally qualified personnel we mean: personnel with specific technical skill in the field of heating system components for civil use, domestic hot water production and maintenance. Personnel must have the qualifications provided for by current legislation.

Incorrect installation or improper maintenance can cause damage to persons, animals or objects for which the manufacturer is not responsible.

Before performing any cleaning or maintenance, disconnect the appliance from the energy mains by acting on the switch of the system or by unplugging it.

In case of failure and/or malfunctioning of the appliance, switch it off and do not try to repair it or intervene on it directly. Contact only personnel qualified in compliance with law.

Any repairs must be performed solely by personnel authorised by Unical using original spare parts only. Failure to comply with the above can jeopardise the safety of the appliance.

To guarantee appliance efficiency and its correct operation, yearly maintenance must be performed by qualified personnel.

Should you decide not to use the appliance, parts entailing potential sources of hazard must be made safe.

Should the appliance be sold or transferred to a new owner or if you move and leave the appliance, always make sure that the instruction booklet accompanies it in order to be consulted by the new owner and/or installer.

Only original accessories must be used for all appliances with optionals or kits (including electric).

This appliance is intended solely for the use for which it was expressly designed. Any other use is to be considered improper and therefore dangerous.

Do not obstruct the terminals of the intake/exhaust ducts.

Technical features and dimensions

TECHNICAL FEATURES AND DIMENSIONS

2.1 - TECHNICAL FEATURES

The heat generator mod. STILE 27 is a steel heating stove operating with wood pellets with the combustion chamber under negative pressure.

DESCRIPTION OF COMPONENTS:

• Steel heat stove body

• Refractory steel burner

• Front cleaning door equipped with ceramic glass

• Bottom cleaning door

• Automatic combustion air regulator

• Flue gas passage zone that can be inspected

• Powder painted sheet steel casing

2.2 - HYDRAULIC DIMENSIONS AND CONNECTIONS

1. Emergency console *

2. Front cleaning door equipped with ceramic glass

3. Bottom cleaning cover

4. Main switch with plug

5. Remote control reception antenna

6. Room thermostat electric connection

7. Manually reset water safety thermostat

8. Manually reset pellet safety thermostat

T1. CH flow (R 3/4) T2 CH return (R 1) T3 Chimney connection (ø100) T4 Air intake connection (ø80) T5 Safety valve discharge connection (R 3/4)

* Only switches ON/OFF and performs OUTPUT CHANGE, aside from an LED which signals a generic error.

fig. 1

Technical features and dimensions

Indicative hydraulic diagram

M Heating system flow R Heating system return 1 Heating system overpressure valve (2.5 bar) (supplied) 2 Automatic release valve (supplied) 3 Heating system expansion vessel (preloaded at 1 bar) (supplied) 4 System filling tap (not supplied) 5 System shut-off valves (not supplied) 6 Main pump (supplied) 7 System drain tap (not supplied)

Attention! The diagram above is indicative and can be customised. For special requirements, please contact our After-Sales Service. When installing, check the correct direction of the water flow.

fig. 2

Technical features and dimensions

Hydraulic dimensions and connections with DOMESTIC HOT WATER PRODUCTION KIT

1. Emergency console *

2. Front cleaning door equipped with ceramic glass

3. Bottom cleaning cover

4. Main switch with plug

5. Remote control reception antenna

6. Room thermostat electric connection

7. Manually reset water safety thermostat

8. Manually reset pellet safety thermostat

9. Domestic hot water production unit

T1 CH flow (R 3/4) T2 CH return (R 3/4) T3 Chimney connection (ø100) T4 Air intake connection (ø80) T5 Safety valve discharge connection (R 3/4) T6 Domestic hot water outlet connection T7. Domestic cold water inlet connection

fig. 3

* Only switches ON/OFF and performs OUTPUT CHANGE, aside from an LED which signals a generic error.

Note: the support bracket of the domestic hot water production unit can be fastened to the ground with plugs. The maximum clearance of the domestic hot water production unit from the back of the boiler is indicative as it depends on the length of the flexible hoses.

Technical features and dimensions

Indicative hydraulic diagram

M Heating system flow F Domestic cold water inlet C Domestic hot water outlet R Heating system return 1 Heating system overpressure valve (2.5 bar) (supplied) 2 Automatic release valve (supplied) 3 Heating system expansion vessel (preloaded at 1 bar) (supplied) 4 System filling tap (not supplied) 5 System shut-off valves (not supplied) 6 Main pump (supplied) 7 DHW system shut-off valve (not supplied) 8 Domestic cold water inlet filter (not supplied) 9 Differential flow switch (supplied) 10 Plate heat exchanger (supplied) 11 Diverter valve (supplied) 12 Water hammer prevention system (not supplied) 13 System drain tap (not supplied)

Attention! The diagram above is indicative and can be customised. For special requirements, please contact our After-Sales Service. When installing, check the correct direction of the water flow.

fig. 4

Technical features and dimensions

2.3 - TECHNICAL DATA

OVERALL OUTPUT

NOMINAL OUTPUT THERMOCHEMICAL OUTPUT ELECTRIC ABSORPTION

MAX. WORKING PRESSURE

PELLET TANK CAPACITY FLUE GAS TEMPERATURE FLUE GAS MASS FLOW RATE MINIMUM DRAUGHT CO VALUE 13% TOTAL EFFICIENCY

PELLET CONSUMPTION

AUTONOMY

HEAT STOVE CAPACITY

WATER SIDE PRESSURE DROPSA (standard version)* MAX HEATABLE VOLUME** DHW PRODUCTION (see note)***

* Pressure drops for flow rate corresponding to a thermal drop of 15K. ** Values calculated based on the Law 10/91 for residential homes with a heat requirement of 30 kcal/hm³. The data is indicative. *** NOTE: DHW production is subordinated to operation of the system pump. This cannot start up until the water temperature in the heat stove reaches 40°C. Beyond

this threshold it is necessary to consider the time required for the water temperature in the heat stove to reach a degree which allows thermal exchange through the plate heat exchanger. A pressure drop caused by the thermal exchange is also considered. Therefore, with the heat stove at full capacity and water temperature of 80°C, with a continuous withdrawal of 10 litres a minute, the outlet temperature from the DHW exchanger will be approximately 40°C with cold water inlet at approximately 10°C.

The results in the table have been obtained using certified pellets based on the standards DIN 51731, DINplus and ÖNORM M 7135.

(kW) 6,8÷22 (kW) 5,2÷20

(kW)

starting

(W)

full capacity(W) (bar) (kg)

(°C) (g/s) (Pa) (%) (%)

min.

max. (kg/h)

min.

max. (h)

at nominal flow rate

at minimum (l)

(m.w.c.) (m³) (l/min.)

8÷27

395 250

max. 180°C - min. 80°C

10,20

< 0,04

81,48

85 1,65 5,62 10,7 36,4

0,3

573

Emissions: according to UNI EN 14785 Efficiency: according to UNI EN 14785

2.4 - SUPPLY

Controlled combustion system with flue gas temperature recovery

Flue gas draught control pressure switch Dual combustion system Ceramic glass Two-way remote control Automatic re-ignition in case of blackout (within 60 seconds) 5-speed forced ventilation Possibility of setting heat outputs (5 levels) Weekly programming

standard

standard standard

standard standard standard standard standard standard

Technical features and dimensions

2.5 - MAIN COMPONENTS

1. Removable top with pellet loading cover

2. Panel board

3. Front door with ceramic glass

4. Pellet combustion crucible

5. Pellet igniter

6. Upper ash cleaning pan

7. Lower ash cleaning pan

8. Heat exchange pipe scraper system

9. Pellet tank

10. Pellet feeding screw

11. Feeding screw motor

12. System pump

13. Combustion flue gas intake/exhaust unit M C.H. flow R C.H. return A Combustion air intake F Combustion flue gas exhaust

N.B.: The smoke side of the thermal exchange pipes becomes dirty; it is therefore advised, every time you load pellets, to activate the scraper system (pos. 8) in the opposite vertical direction for a few seconds to keep them clear.

2.6 - GENERAL INFORMATION

The main feature of the STILE 27 heat stove is that of burning natural fuel (pellets) obtained in an environmentally-friendly way from wood industry waste (sawdust, powders). The sawdust and powders coming from wood processing, after having been appropriately cleaned and dried, are compacted at high pressure giving way to pure wood cylinders: the pellet. Each cylinder can have variable length and thickness, respectively, between 1÷3 cm long and 6÷8 mm in diameter. The main features of the pellet are its low moisture content (lower than 12%), its high density (about 600 kg/m3) as well as its regularity and compactness providing this type of fuel a Net Calorific Value (NCV) of 4100÷5000 kcal/kg.

In order to provide STILE 27 with a long lifespan, Unical advises using good quality pellets.

The pellets used to feed the heating stove must have high quality features such as, for example, those determined by standards DIN 51731 and ÖNORM M 7135. The following a some of their fundamental data.

fig. 5

Technical features and dimensions

Quality standards for Unit of measurement ÖNORM M 7135 DIN 51731 DIN plus wood Pellet

Diameter mm from 4 to 10 from 4 to 10 from 4 to 10 Length mm 5 x D Density Kg/dm

< 50 5 x D

> 1,12 1,0 – 1,4 >1,12

Humidity % < 10 < 12 < 10 Ash % < 0,50 < 1,50 < 0,50 Calorific value kWh/kg > 5 4.86 – 5.42 > 5 Sulphur % < 0,04 < 0,08 < 0,04 Nitrogen % < 0,3 < 0,3 < 0,3 Chlorine % < 0,02 < 0,03 < 0,02 Dusts % weight < 2,3 - < 2,3 Bonding agents % of pressed mass < 2

No more than 20% of the pellets can be 7.5 times longer than the diameter D.

DIN prohibits use of any added substance. However this prohibition is not valid for small heating systems.

< 2

The standard DINplus proposes the combination of quality parameters proposed by the standard DIN 51731 and by the Austrian standard ÖNorm M 7135.

The pellet, as foreseen by current Italian legislation governing commodity features of fuels (DPCM 2.10.1995), must be produced exclusively with untreated wood sawdust without other materials added.

It is absolutely forbidden to use any solid or liquid fuel other than pellets to feed STILE

27.

For best operation of STILE 27, it is recommended to use pellets the quality of which is certified by an authorised body. The use of poor quality pellets can cause STILE 27 malfunctioning and shall terminate the warranty.

Storage and handling of pellets are important operations to be performed with care:

- The fuel must be stored in a dry place which is not cold;

- Pellets must be moved in such a way to avoid breaking them up into small powder.

Compliance with these two simple rules provides better combustion efficiency and conserves the moving mechanical parts of the appliance.

If STILE 27 remains unlit for long periods (more than seven days), the tank must be emptied from residual fuel to keep it from becoming excessively moist which could cause the appliance to malfunction.

A high moisture content in the pellet can cause it to break up into powder generating greater accumulation of residue in the brazier and blocking the fuel feed system (screw).

Installation instructions

INSTALLATION INSTRUCTIONS

3.1 - GENERAL WARNINGS

ATTENTION! This heat stove is intended solely for the use for which it was expressly designed. Any other use is to be considered improper and therefore dangerous. This heat stove heats water to a temperature lower than the atmospheric pressure boiling temperature.

ATTENTION! The appliances are designed to be installed inside suitable rooms or technical spaces only. The appliances cannot be installed or operate outdoors. Outdoor installation can cause malfunctioning and be dangerous. Choose specifically designed appliances for outdoor installation.

Before connecting the heat stove, have professionally qualified personnel: a) Thoroughly wash all the piping of the system

to remove any residue or impurities which could jeopardise proper operation of the heat stove;

b) Check that the chimney/flue has an

appropriate draught, without any bottlenecks, and that no exhausts from other appliances are inserted, unless the flue has been implemented to accommodate several utilities according to specific standards and prescriptions in force. Only after this check can the fitting between the heat stove and chimney/flue be mounted;

ATTENTION! The appliance must be installed by a qualified technician with the technicalprofessional requirements according to law 46/90 who, under his own responsibility, guarantees compliance with standards according to good practice rules.

The heat stove must be connected to a central heating system and/or domestic hot water production network compatible with its efficiency and output.

3.2 - INSTALLATION STANDARDS

STILE 27 is a heat stove designed to operate with wood

pellets.

It must be installed according to the following standards:

Standard UNI 10683 of 09/2005 Wood or other solid biofuel fed systems. Installation requirements. FIELD OF APPLICATION: wood or other solid biofuel fed systems with a thermochemical input less than 35 kW.

Standard UNI 11263 of 11/2007 Solid biofuels - Characterization of pellet for energy purposes.

Standard UNI 11264 of 11/2007 Solid biofuels - Characterization of wood logs, briquettes and chips.

LAW March 5,1990 N° 46 and relative applicative regulation D.P.R. 447 December 6, 1991 (and subsequent amendments). Safety standards for systems FIELD OF APPLICATION: without thermal potential limits.

Installation instructions

Standard UNI 10847 of March 2000. Single flue systems for generators fed by solid and liquid fuels. Maintenance and control. Guidelines and procedures. FIELD OF APPLICATION: systems fed with solid and liquid fuels.

LAW January 9,1991 N°10 and relative applicative regulation D.P.R. 412 26/08/93 (and subsequent amendments), D.P.R. n°551 of 21.12.1999. Regulation with amendments to Italian Presidential Decree. n° 412 concerning design, installation, operation and maintenance of thermal systems in buildings, in order to reduce energy consumption. FIELD OF APPLICATION: without thermal potential limits.

Law n°186 of 01.03.1968 Installation standard IEC 64-8 / II ed. Electric systems using rated voltage no greater than 1000 V AC and 1500 V DC.

Installation standard IEC 64-8 / I ed. Electric systems in buildings intended for residential and similar use.

This appliance must be installed according to that indicated by the standards in force in the country where the heat stove is installed.

Installation instructions

3.3 - PACKAGING

The STILE 27 heat stove is delivered encased on a pallet and protected by cardboard packaging.

After having removed packaging, make sure that the supply is complete and undamaged. If in doubt, do not use the appliance and contact the supplier.

To handle the heat stove and to remove the pallet below, remove the top and, using appropriate lifting systems, fasten the upper hook intended for this purpose.

Keep the packaging material (cardboard boxes, straps, plastic bags, etc.) out of the reach of

children as they are potential sources of danger.

3.4 - INSTALLATION

STILE 27 is a heat generator which withdraws the combustion air required for the combustion process directly from the environment in which it is installed. For this reason, and above all for the safety of the persons using STILE 27, it must be installed in a sufficiently ventilated area so that a continuous flow of combustion air is guaranteed. It is therefore essential to make air vents linked with the outside which, in compliance with that indicated by Standard UNI 10683, have the following features:

1. Have a free cross-section no less than 80 cm2;

2. Be made close to the floor;

3. Be appropriately protected by metallic mesh or grille so that the minimum air passage cross-section is not reduced;

4. Be positioned in such a way that it cannot be obstructed.

The correct air influx can also be guaranteed by using openings towards an adjacent room as long as that room is provided with direct ventilation and it has no fire risks such as depots, garages or storerooms as regulated by standard UNI 10683.

STILE 27 should be installed in rooms without appliances which do not operate in an airtight fashion respect to the room or appliances which can create a vacuum in the room respect to the outside environment and therefore hinder the draught of the flue gas exhaust system (UNI 10683).

To make it easier to clean, there must be a clearance space in front of the heat stove no less than the length of the stove itself. You must at least make sure that the door can open 90° unobstructed

Unical will not be held liable for damage to persons, animals or objects due to failure to comply with the above instruction.

The document envelope, inserted in the combustion chamber, contains:

- Heating system booklet

- The installation, maintenance and operating instruction booklet

- Warranty

- Local ventilation requirements adhesive label

If the heat stove is stored for long periods, it should be adequately protected.

The heat stove can be placed directly on the floor as it is equipped with a self-supporting frame.

When inspecting compatibility of the heating system, you should make sure that the support surface (floor) has a support capacity (kg) suitable to bear the weight of the product. If it is not adequate, suitable safety measures should be taken (e.g. load distribution plate).

Furthermore, should the floor be made of combustible material (such as parquet) it should be protected by using a sheet of fireproof material underneath STILE 27 sufficiently wider than the base. When installation has been performed, the heat stove must be horizontal and stable, in order to reduce vibrations and noise. However clearance space must be left behind the heat stove and on both sides to allow the casing to be opened to service the fan and the pellet feeding screw.

During installation, place the outermost clearance point of STILE 27 at least 80 cm from combustible and/or flammable material. If this distance cannot be maintained, a thermal protection should be arranged (UNI 7129, UNI 10683).

Do not approach or touch the outer surfaces of the combustion chamber with flammable material as it can reach high temperatures following continuous use.

Installation instructions

3.5 - FLUECONNECTION

To connect the flue gas exhaust pipe, local and national standards must be respected (see Standards UNI 7129 and UNI 10683).

The chimney is of the utmost importance for correct heat stove operation: it is therefore necessary that the chimney be waterproof and properly insulated. Old or new chimneys, built without respecting the specific requirements, can be recovered by “piping” the chimney itself. It will be necessary to introduce a metallic pipe inside the existing chimney and insulate the space between the metallic pipe and the chimney. Chimneys made of prefabricated blocks must have perfectly sealed joints to avoid that flue condensate smudge the walls due to permeation. The entrance to the chimney should be at a 45° angle. At the base of the chimney a flue inspection opening has to be made. It is recommended to insulate the pipe connecting to the chimney to reduce heat loss and noise. The dimensions of the chimney must guarantee the necessary draught required to properly operate the heat stove. An insufficient draught, besides causing smoke leakage, considerably reduces the heat output. On the contrary, an excessive draught causes an abnormal heat output increase, a higher flue gas temperature in the chimney and too much fuel consumption.

- The flue gas exhaust must be equipped with inspection plugs;

- The minimum height of the pipe connected directly to the flue gas exhaust of STILE 27 is between 2÷3 m;

- If a horizontal section is inevitable, it is recommended that it be no longer than 1.5 m at most and sloping 3÷5% to favour the escape of the flue gas;

- Use of a weatherproof terminal to avoid altering the slight state of overpressure found in the flue (do not fit a horizontal section at the end of the pipe);

- The exhaust ducts must be made with material resistant to combustion products and condensation (the inspection plug can drain any condensation which may be formed);

- Pipes must be built in such a way to guarantee maximum smoke tightness (UNI 10683);

- It is recommended to insulate the exhaust pipe, especially the outside part exposed to foul weather.

Do not make sections fully horizontal.

There must be no flue gas exhaust hoods installed or already existing in the room where the heat generator is installed to avoid creating a vacuum in the environment.

It is prohibited to close the air vents. It is forbidden to exhaust flue gas through the wall. Have the flue cleaned at least once a year; we therefore recommend having both the chimney and the flue gas fitting thoroughly cleaned.

Use only exhaust pipes suitable for the type of fuel used. The supplier will have no contractual or extracontractual liability for damage caused due to incorrect installation and use and anyway failure to comply with the instructions

provided by the manufacturer.

It is prohibited to exhaust STILE 27 combustion products in shared smoke pipes.

The flue must comply with standards in force.

The flue gas chimney must be made properly to favour the normal flow of flue gas from the combustion chamber towards the outside in the case of a power outage.

Remember that the elimination of excess heat is managed optimally by the electronic control unit (modulation, extinction phase etc.).

The following are the main features of the flue gas exhaust pipe according to that established by standards UNI 7129 and UNI 10683:

Should the flue or piping catch fire, immediately switch STILE 27 off and disconnect it from the household electrical mains.

Weatherproof

terminal

1.5 metres

fig. 6

H > 4 metres

2-3 metres min

Soot container

with

condensation

drain

Installation instructions

3.5.1 - EXHAUST THROUGH EXTERNAL WALL

Weatherproof

terminal

One of the installation solutions which can be adopted is that of positioning STILE 27 near a perimeter wall of the home so that flue gas is discharged directly outside. Here are some guidelines from the standard UNI 7129 for this particular type of configuration:

- Always provide an inspection plug which allows you to perform efficient and periodical cleaning as well as draining any condensation formed;

- The chimney must be strictly wind and rain proof;

Soot container with condensation drain

fig. 7

- Appropriately insulate the flue gas exhaust pipe in the section passing through the wall.

The flue gas exhaust pipe, if completely outside, should be made in double wall stainless steel to guarantee both greater resistance to atmospheric agents and a sufficient flue gas temperature.

Installation instructions

3.5.2 - EXHAUST THROUGH ROOF BY MEANS OF TRADITIONAL FLUE

The pellet combustion flue gas can also be discharged using a traditional pre-existing flue as long it is made up to standard (see UNI 10683). We will briefly list some of the main features highlighted by the standard which characterise a good chimney:

- Adequate insulation especially in the outside section exposed to the atmosphere;

- Constant internal cross-section (there must be no crosssection constrictions);

- Made with material resistant to high temperatures, to the action of combustion products and to the corrosive action of condensation which could be formed;

- Predominately vertical with deviations no greater than 45°;

Inspectionable soot

container with possible

condensation drain

It is recommended to provide a solid material and/or condensation collection chamber which can be inspected through an airtight door. It is recommended to abide by that established by standards UNI 9615 and 9731 for the dimensioning of the chimney crosssection and anyhow not to make pipes with a diameter less than 100 mm. If there are larger cross-sections, a steel pipe must be inserted inside the masonry duct.

The steel pipe must be sufficiently insulated with high temperature resistant material and sealed from the outer chimney.

fig. 8

Installation instructions

3.6 - CONNECTING HEAT STOVE

TO SYSTEM

Attention! Make sure that there are no mechanical

tension points while connecting the pipes to avoid the risk of leakage!

Heating flow and return pipes must be connected to the heat stove at the respective fittings as indicated on page 8. For the STILE 27 heat stove equipped with the domestic hot water production kit, see the diagram on page 10.

For the dimensioning of the heating circuit pipes, you must take into account pressure drops caused by radiators,

3.7 - FILLING THE SYSTEM

Attention! Do not mix the heating water with incorrect concentrations of antifreeze or anticorrosion substances! This could damage the gaskets and cause noise during operation. Unical will not be held liable for damage to persons, animals or objects due to failure to comply with the instruction above.

After completion of all the hydraulic connections, fill the heat stove and proceed with the inspection of soundness of all the connections.

This operation must be performed carefully, respecting the following phases:

- open the radiator air release valves;

- open the filling tap gradually, making sure that the automatic air release valves installed on the system work properly;

- close the radiator air release valves as soon as water comes out;

- by means of the pressure gauge inserted on the system, check that pressure reaches approximately 1 bar;

- close the filling tap of the system and bleed air once again through the radiator air release valves;

-make sure that all the connections are watertight;

-after commissioning the heat stove and bringing the system to the operating temperature, stop the pumps and repeat the air bleed operations;

-let the system cool off and, if necessary, return the water pressure to 1 bar.

NOTE

In systems equipped with closed expansion vessel, the water pressure in the heating system

- with the system cold - must not drop below 1 bar; open the filling tap when pressure is too low. This operation must be performed with the system cool.

thermostatic valves, radiator stopping valves and by the configuration of the system. The laying of the pipes must be designed taking every necessary precaution to avoid air pockets and to facilitate continuous degassing of the system.

Make sure that the pipes of the water and heating system are not used as earthing electrodes of the electric or telephone system. They are absolutely not suitable for this type of use. Serious damage could result for the piping, heat stove and radiators in a short amount of time.

The pressure gauge fitted on the system allows you to read circuit pressure.

NOTE

If the system was without electric power, after a certain idle period, the pump/s could be blocked. Before turning on the main switch, the pump must be unblocked by operating as follows: Introduce a screwdriver in the hole below the protective screw in the centre of the pump intended for this purpose and turn the pump shaft clockwise. After having unblocked the pump, tighten the protective screw and make sure there is no water leakage.

fig. 9

ATTENTION!

After removing the protective screw, a small amount of water could leak out. Dry off all wet surfaces before powering the boiler.

Installation instructions

ELECTRIC CONNECTIONS

General warnings

The electrical safety of the system is guaranteed only when it has been properly connected to an efficient earthing system carried out as intended by safety standards in force: pipes of the gas, water and heating systems are absolutely unsuitable as earthing electrodes.

It is necessary to verify this fundamental safety requirement. If in doubt, have the electric system carefully checked by professionally qualified personnel as the manufacturer of the heat stove is not liable for damage caused by failure to provide an earthing system.

Have professionally qualified personnel check that the electric system is adequate for the maximum power absorbed by the system. Make sure in particular that the cross-section of the cables is suitable for the power absorbed by the loads.

Adapters, multiple sockets and/or extension cords cannot be used to power the pumps or other loads from the electric mains.

Use of any type of component using electric energy requires the observance of some fundamental rules, such as:

• do not touch the appliance with wet and/or moist parts of the body and/or in bare feet;

• do not pull the electric cables;

• do not leave the appliance exposed to atmospheric agents (rain, sun, etc.) unless expressly designed;

• do not allow children or unskilled persons to use the appliance.

Remember that a bipolar switch must be installed on the heat stove power line with over 3 mm between contacts, easy to access, making maintenance quick and safe.

The power cable must be replaced by authorised technical personnel. Failure to comply with the above can jeopardise the safety of the appliance.

230V electric power supply connection

The general electrical connections are illustrated on page 22 and 23.

Installation of the electrical accessories of the heat stove requires connection to a 230 V - 50 Hz electric mains: This connection must performed up to standard as intended by current IEC regulations.

Danger! Only a qualified technician may perform the electrical installation. Before performing connections or any type of operation on electrical parts, always disconnect electrical power and make sure that it cannot be reconnected accidentally.

Installation instructions

CRONO

RELE

AUX

FUS

CN8

TRASFORMATORE

SERIALE

CN13

DISPLAY

FUM

CN2

COD. I023_3

CN5

CN1

CN14

N FSCA

COCACCAL1 AL2NV2/PO

CN4

CN6

CN7

CN9

CN15

CN11

JTAG

ENC +5V GND

BLU N.PEL N.H2O N.AMB TERM -TC1+

BUZZER

Terra

Rete 230V 50Hz

Ventilatore

Fumi

Encoder ventilatore fumi

ALC = Depressimetro ALP = Termostato sicurezza vano pellet

ALM = Termostato sicurezza acqua

Candeletta

Coclea

Spina

Wieland

Sonda

acqua

Sonda

fumi

ALC

ALP

blu

grigio

blu

marrone

azzurro

rosso

bianco

Ter most.

ambiente

verde

marrone

FILTRO

DI RETE

230V

* posizionata sul posteriore della caldaia

T.A.

(esterno)

ALM

Trasduttore di pressione

OUT giallo

- marrone

+ verde

PRACTICAL WIRING DIAGRAM

Earth

MAINS

FILTER

TRANSFORMER

RELAY

Grey

blue

brown

light blue

brown

blue

230V 50Hz mains

Flue gas

fan

brown

green

Pressure

transducer

Yellow

SERIAL

White

brown

green

Flue gas fan

encoder

probe

Water

CHRONO

probe

Room

temperature

Red

Blue

Screw

Grey

Igniter

probe

Flue gas

ALC = Depression thermostat ALP = Pellet compartment safety thermostat ALM = Water safety thermostat

* positioned at back of boiler

Wieland

Plug

Room

thermostat

(external)

fig. 10

Installation instructions

estate

inverno

Spina

Wieland

T.A.

caldaia

Presa

Wieland

Spina

Wieland

giallo/verde

Spina

Wieland

N (azzurro) neutro

L1 (nero) riscaldamento

L2 (marrone) sanitario

T1 (azzurro)

T2 (marrone)

Presa

Wieland

Presa

Wieland

valvola

deviatrice

termostato

ambiente

flussostato

230V ~ 50Hz

alimentazione

E/I

Fase (230V~ 50Hz)

Relé 12V

Flussostato

Trasformatore

12V

Valvola

deviatrice

a 3 vie

azzurro

nero

riscaldamento

marrone

sanitario

Termostato ambiente *

T1 T2

* NOTA: in caso di montaggio del TERMOSTATO AMBIENTE, togliere il ponte sulla presa Wieland; vedere figura sopra.

PRACTICAL WIRING DIAGRAM (with DHW production kit)

summer winter

power supply

room

diverter

valve

thermostat

flow switch

Wieland

socket

Wieland

plug

yellow/green

L2 (brown)DHW

N (light blue) Neutral

Phase (230V ~50Hz)

L1 (black) heating

Flow switch

Relay

Transformer

* NOTE: when mounting the ROOM THERMOSTAT, remove the bridge on the Wieland socket; see figure below.

Wieland

socket

Wieland

plug

boiler

T.A.

black

heating

Wieland

plug

Wieland

socket

T1 (light blue)

3-way

diverter

valve

light blue

T2 (brown)

brown

(DHW)

Room

thermostat

fig. 11

Installation instructions

HEAT STOVE

START-UP

5.1 - COMMISSIONING

Preliminary checks

Commissioning must be done by professionally qualified personnel. Unical will not be held liable for damage to persons, animals or objects due to failure to comply with the instruction above.

Before commissioning the heat stove check that:

- the adduction of combustion air and flue gas evacuation are performed correctly according to that laid down by standards in force;

- the heat stove is provided with all safety and control devices prescribed by current standards;

- the power supply of the electrical accessories of the heat stove is 230V - 50Hz;

- the system is filled with water;

- any system shut-off gate valves are open;

- the external main switch is connected;

- the system safety valve is not blocked and is connected to the sewer system drainage;

Switching boiler on and off

To switch the heat stove on and off, see chapter 7.1.

Information for user

The user must be instructed concerning the use and operation of his heating system, in particular:

• Deliver these instructions to the user, as well as other documents concerning the appliance inserted in the envelope inside the packaging. The user must keep this documentation for future consultation.

• Inform the user about the importance of the air vents and the flue gas exhaust system, highlighting their essential features and the absolute prohibition of modifying them.

• Inform the user concerning controlling the system’s water pressure as well as operations to restore it.

• Inform the user concerning correct temperature control, control units/thermostats and radiators for saving energy.

• Remember that the system must receive regular maintenance at least once a year and a combustion analysis must be performed if foreseen by standards in force.

• Should the appliance be sold or transferred to a new owner or if you move and leave the appliance, always make sure that the instruction booklets accompany it in order to be consulted by the new owner and/or installer.

- there is no water leakage;

- ventilation conditions and minimum distances are guaranteed to perform maintenance.

5.2 - CHECKS AT

COMMISSIONING

GENERAL CONTROLS

Upon commissioning: check that the C.H. system is full of water and is properly purged, that the chimney has a sufficient draught, that the electrical connections have been made correctly (chap. 4) and that the system’s service pump is not blocked.

Inspections and maintenance

INSPECTIONS AND MAINTENANCE

Inspections and maintenance performed professionally and according to a regular schedule as well as the use of original spare parts are of the utmost importance for faultfree operation of the heat stove and to guarantee its long life. Maintenance of the appliance is mandatory in compliance with Laws in force, at the frequency laid down by D.P.R 412 of August 26, 1993 and subsequent amendments, concerning the type of fuel used and the heat stove output.

Failure to perform Inspections and Maintenance can entail material and personal damage.

We therefore recommend stipulating an inspection or maintenance contract.

Inspections help to determine the actual status of the appliance and to compare it with the nominal status. This is done through measuring, controls and observation.

Maintenance is required to eliminate any differences between the actual status and the nominal status. This is normally done by cleaning, setting and replacing individual components subject to wear.

Inspection and maintenance instructions

To assure long-term functioning of your appliance and to avoid altering its approved status, only original Unical spare parts must be used.

Before proceeding with maintenance, always perform the following operations:

• Disconnect the electric mains switch.

• Isolate the appliance from the electric mains by means of an isolated device with a contact opening of at least 3 mm (e.g. safety devices or power switches) and make sure that it cannot be re-connected accidentally.

• Close any shut-off valves on the heating flow and return pipes, as well as the cold water inlet valve.

After having completed all maintenance work, always perform the following operations:

• Open the heating flow and return pipes, as well as the cold water inlet valve.

• If necessary, restore the heating system pressure.

• Reconnect the appliance to the electric mains and engage the switch.

• Make sure the appliance is flue gas tight and watertight.

• Vent the heating system and restore pressure if necessary.

Maintenance intervals and their extent are determined by a specialist based on the status of the appliance ascertained through inspection.

Inspection and maintenance jobs must be performed in the order shown on page 26.

Inspections and maintenance

Boiler body maintenance

Danger! Before performing any maintenance, make sure the heat stove and its components have cooled down.

Warnings

Never drain water from the system, even partially, unless absolutely necessary.

Periodically check the proper operation and integrity of the flue gas exhaust pipe and/or device.

If work or maintenance is performed on the structures near the flue gas pipes and/or flue gas exhaust devices and their accessories, switch the appliance off and, when the work is over, check their efficiency.

Do not clean the heat stove and/or its parts with easily flammable substances (e.g. petrol, alcohol, etc.). Do not leave flammable substances in the room where the heat stove is installed.

Do not clean the boiler room while the heat stove is running.

- Remove the bottom panel with the furnace door open,

pulling it by the top part to release it from the blockage system. Extract the two ash pans and empty them. To extract the pans, turn the front pins until they release from the blockage system.

- IMPORTANT! STILE 27 is equipped with an internal heat

exchanger unit cleaning system which is controlled by repeatedly pushing the lever in the inner top part of the pellet combustion chamber. This operation must be repeated until it slides without any resistance. Cleaning the surface of the heat exchanger pipes guarantees the most efficient thermal exchange possible.

- It could also be necessary to clean the glass as it inevitably

gets dirty. The frequency of this cleaning depends on use and the quality of the pellets. Clean the glass when it is completely cooled off, using specific nonabrasive cleansers. When cleaning is finished, put all pieces back in place acting in the opposite order.

The frequency with which the glass is cleaned is linked to how much the heat stove is used.

At the end of each heating period, inspect the heat stove to keep the system in perfect efficiency. Thorough maintenance always enhances energy saving and safety.

IMPORTANT

Use brushes and a vacuum cleaner to clean the heat stove; if rags are used, make sure they are all recovered.

CLEANING AND ROUTINE MAINTENANCE STILE 27

STILE 27 must receive regular maintenance to guarantee its correct and efficient operation.

The following cleaning operations must be performed only when the heat stove is completely cold and disconnected from the household electric mains.

Daily

- Remove the ashes from the combustion chamber using a

vacuum cleaner intended for recovery of combustion products.

- This operation will be easier by removing the crucible from

the combustion chamber, as shown in the following figure. Check the integrity of the bottom grate of the crucible and in case of doubt, have it replaced. Eliminate incrustations which obstruct the air passage vents. Remove any slag deposited around the crucible support.

fig. 12

LOADING THE PELLET

Access the pellet tank by lifting the top cover. We recommend using only guaranteed quality pellets: this will allow STILE 27 to work with high efficiency, to save on maintenance and to make your heat stove last longer.

EXTRAORDINARY MAINTENANCE STILE 27

Inspections and maintenance

fig. 13

At the end of each heating season, perform a general cleaning of the heat stove acting as follows. During summer, keep the heat stove door closed.

- Clean the combustion chamber using a vacuum cleaner intended for recovery of combustion products after having removed the crucible.

- Remove the top cover by pulling it upwards.

- Disassemble the top cover and clean the heat exchanger pipe unit with a vacuum cleaner.

- Remove the bottom front panel (pulling the top) and empty the pans. Vacuum the combustion residue.

- Check the integrity of the glass door sealing gasket and the air tightness of the combustion chamber. Replace the gasket if necessary.

- We recommend emptying the pellet tank completely at the end of the heating season to prevent it from deteriorating due to moisture, causing possible malfunctioning the next time it is lit.

- We also recommend thoroughly cleaning both the chimney and the flue gas fitting to avoid the risk of a fire.

- Put all the components back in place, sealing the required parts with high temperature resistant silicon.

Every two years, clean the steel impeller of the flue gas intake fan and its housing. It can be reached after having pulled off the top and side panels and having removed the 4 screws. It can be cleaned conveniently with a vacuum cleaner. Check the integrity of the pellet feeding system (screw, control motor, thrust bearing) and have it overhauled if necessary. Check the correct positioning of the pellet ignition resistance. Check the preload of the expansion vessel which must be approximately 1 bar with the system cool.

Inspections and maintenance

6.1 - TROUBLESHOOTING

This paragraph provides the purchaser of our product with a quick and efficient guide to understand problems which could arise while using STILE 27.

Problem found

The remote control display does not switch on.

The remote control display indicates NO FIELD.

The fan does not work.

Repeated failed ignitions, the flame is weak, the crucible fills up with fuel.

Possible cause

1 Batteries missing / discharged. 2 The remote control is faulty.

1 The heat stove is disconnected from the

electric mains.

Possible temporary power cut. 2 Protective fuse blown. 3 Main switch at rear of heat stove could

be OFF.

1 Possible obstruction of tangential fan

inlets.

2 The fan could be burnt or blocked. 3 Malfunctioning of sensors or circuit

board.

1 Possible obstruction of combustion air

inlet of crucible or its holes.

2 The pellet could be too moist.

3 Electric or electronic problem in board. 4 The ignition resistance or thermal probe

could be faulty.

5 The door could be closed improperly.

6 Improper functioning of combustion air

exhaust system (flue gas fan).

Remedy

1 Insert/replace the batteries. 2 Contact technical assistance.

1 Make sure power is present and that the

power cable is connected.

2 Contact technical assistance. 3 Place the switch at ON.

1 Contact technical assistance.

2 Contact technical assistance. 3 Contact technical assistance.

1 Empty the pellet crucible.

Clean the crucible and make sure the combustion air passage holes are not obstructed.

2 Change the type of pellet (see

specifications on page 10). 3 Contact technical assistance. 4 Contact technical assistance.

5 Contact technical assistance to replace

the gaskets. 6 Contact technical assistance.

The pellet does not drop into the brazier.

Low level of hot water in radiators.

Heat stove blockage due to fuel gas overtemperature.

Heat stove blockage due to water overtemperature.

Faulty control unit watch.

Should these possible solutions fail to resolve the problem you detected, please contact the customer assistance service for further information.

1 Pellet tank empty. 2 The pellet feeding gearmotor is faulty. 3 Faulty electronic control unit.

1 Air in system. 2 Possible pump malfunctioning. 3 Faulty water temperature probe. 4 Faulty electronic control unit.

1 Flue gas exchanger obstructed.

2 Faulty fuel gas temperature probe.

1 Safety thermostat needs to be reset.

2 Safety thermostat faulty. 3 Faulty electronic control unit.

1 Watch buffer battery flat.

1 Fill pellet tank. 2 Contact technical assistance. 3 Contact technical assistance.

1 Bleed the system. 2 Contact technical assistance. 3 Contact technical assistance. 4 Contact technical assistance.

1 Contact technical assistance to clean the

flue gas circuit. 2 Contact technical assistance.

1 Reset the safety thermostat in the rear of

the heat stove. 2 Contact technical assistance. 3 Contact technical assistance.

1 Contact technical assistance.

Programming setting

PROGRAMMING

SETTING

7.1 - USING THE PRODUCT

Before describing in detail how to operate the product, we remind you that it is mandatory to respect the relevant national and local provisions, rules and laws in force. To better understand how to operate the product, we have provided diagrams accompanied by an in-depth description of the remote control and the programming modes of the product, as well as operations to be performed to commission STILE 27. STILE 27 is lit very easily. After having connected it to the household electric mains, press the ON/OFF key only after having properly connected the product to an adequate water system (see our installation guidelines).

It is strictly forbidden to operate STILE 27 without having properly connected it to an adequate water system, or else the warranty shall be terminated.

The first few times that the heat stove is lit, there could be vapours and bad smells of the painted parts. These problems are intrinsic to the chemical stabilising process of the special paint used. Therefore the room must be well ventilated during this phase.

Remember that the appliance must always operate with the combustion chamber door closed.

Though the surface temperatures which our appliance reaches are not extremely high, we recommend the utmost attention and caution when touching it. The outer surfaces of the combustion chamber in particular can become red-hot ensuing intensive use.

Place the outermost clearance point of the heat stove 80 cm from combustible and/or flammable material. If this distance cannot be maintained, a thermal protection should be arranged (UNI 7129, UNI 10683).

To avoid the onset of malfunctioning which could in turn be a source of damage to persons or objects, we recommend avoiding switching the appliance on and off suddenly and continuously, but to follow the timetables foreseen by the manufacturer for these operations.

We also recommend thoroughly cleaning both the chimney and the flue gas fitting (at least once during the whole season of operation) to avoid the risk of a fire.

The appliance must operate with the ash pan hermetically shut.

We recommend to avoid operating the heat stove with an instable electric power supply; continuous blackouts could cause malfunctioning.

Programming setting

08 : 10

M-2-3-01

PROG-1

START

input livello di menù

dialogo

14 : 24

21°C

SPENTO

orologio temperatura ambiente

dialogo temperatura acqua

45°C

7.2 - REMOTE CONTROL

The remote control displays information concerning the operating status of STILE 27. By accessing the menu, you can obtain various types of displays and perform the settings available depending on the access level.

Depending on the operating mode, the displays can take on different meanings according to the position on the screen.

Example with STILE 27 off.

clock

The following figure shows the arrangement of the messages during programming or operating parameter setting. In particular:

- The input area displays the entered programming values.

- The menu level area displays the current menu level. See the menu chapter further on.

room temperature

water temperaturedialogue

fig. 14

input

menu level

dialogue

fig. 15

1 2 3

4 5 6 7

DISPLAY

INCREMENTO

DECREMENTO

SET TEMPERATURA

AMBIENTE

Scorri menù

ON / OFF

ESCI DA MENÙ

ACCESSO AL MENÙ/

CONFERMA DATO

SET TEMPERATURA

ACQUA DI CALDAIA

SENSORE TEMPERATURA

AMBIENTE

SET POTENZA

Scorri menù

The figure below, describes the keys of the remote control and the functions linked to them. The set operations are viewed on the display.

DISPLAY

INCREASE

Programming setting

SET ROOM

TEMPERATURE

ON/OFF

EXIT MENU

DECREASE

SET ROOM

TEMPERATURE

Scroll menu

SET OUTPUT

Scroll menu

SET BOILER WATER

ACCESS MENU/

CONFIRM DATA

TEMPERATURE

fig. 16

Programming setting

7.3 - FUNCTION OF BUTTONS

button action description mode

temperature

(1)

PROGRAMMINGDecrease

with keys 4 / 5 / 6 pressed

temperature

(2)

ON /OFF

unblock

room

temperature

output

with keys 4 / 5 / 6 pressed

WORKING

BLOCK Unblocks STILE 27 and switches it off

MENU / PROGRAMMING

WORKING / OFFSet

MENU Passes to the item of the next menu

PROGRAMMING Returns to the item of the next submenu, modifications performed

WORKING / OFFSet boiler

Modifies / decreases the value of the selected menu

Decreases the room temperature / modifies output value / decreases water temperature

Modifies / increases the value of the selected menuPROGRAMMINGIncrease

Increases the room temperature / modifies output value / increases water temperature

Pressed for 2 seconds, it switches STILE 27 on or off if it is off or on respectively

Accesses the higher menu level, modifications performed are memorised

Modifies the room temperature of STILE 27 (scroll with keys 1 and 2)

are memorised

Modifies output of STILE 27 (scroll with keys 1 and 2)

MENU Passes to the item of the previous menu

PROGRAMMING Passes to the item of the previous submenu, modifications performed

are memorised

Set

water

temperature

of boiler

WORKING / OFF

MENU Accesses the next submenu level

PROGRAMMING Sets the value and passes to the item of the next menu

Modifies water temperature of STILE 27 (scroll with keys 1 and 2)

Accesses the MENU

Programming setting

7.4 - MENU

By pressing key 7 (MENU) you access the menu. This is divided into various items and levels which allow to access board settings and programming.

The items of the menus providing access to technical programming are protected by password.

7.4.1 - USER MENU

The following table synthetically describes the structure of the menu, in this paragraph focusing only on selections available for the user.

level 1 level 2 level 3 level 4 value

01 - clock setting

day week01 - day

time02 - hours

minute03 - minutes

day month04 - day

02 - chrono setting

month05 - month

year06 - year

01 - enable chrono

01 - enable chrono on / off

02 - program day

01 - chrono day on / off

02 - start 1 day time

03 - stop 1 day time

04 - start 2 day time

05 - stop 2 day time

03 - program week

01 - chrono week on / off

02 - start prog 1 time

03 - stop prog 1 time

04 - Monday prog 1 on / off

05 - Tuesday prog 1 on / off

06 - Wednesday prog 1 on / off

07 - Thursday prog 1 on / off

08 - Friday prog 1 on / off

09 - Saturday prog 1 on / off 10 - Sunday prog 1 on / off

Programming setting

level 1 level 2 level 3 level 4 value

11 - start prog 2

12 - stop prog 2

13 - Monday prog 2

14 - Tuesday prog 2

15 - Wednesday prog 2

16 - Thursday prog 2

17 - Friday prog 2

18 - Saturday prog 2

19 - Sunday prog 2

20 - start prog 3

21 - stop prog 3

22 - Monday prog 3

23 - Tuesday prog 3

24 - Wednesday prog 3

25 - Thursday prog 3 26 - Friday prog 3

time

on / off

on / off time

time

on / off

04 - program week-end

27 - Saturday prog 3

28 - Sunday prog 3

29 - start prog 4

30 - stop prog 4

31 - Monday prog 4

32 - Tuesday prog 4

33 - Wednesday prog 4

34 - Thursday prog 4

35 - Friday prog 4

36 - Saturday prog 4

37 - Sunday prog 4

01 - chrono week-end

02 - start 1

03 - stop 1

on / off

time

on / off

04 - start 2

05 - stop 2

oFF

M-2-1-01

CRONO

ABILITA

input livello di menù

dialogo

03 - choose language

MEnu 02

OROLOGIO

MESE

input livello di menù

dialogo

Programming setting

01 - Italian set

02 - French

03 - English

04 - German

04 - standby mode

05 - buzzer

06 - initial load

07 - heat stove status

7.4.2 - MENU 01 - clock setting

Sets the current time and date. The board is provided with a lithium battery which provides the internal clock with over 3 / 5 years of autonomy.

input

set

on / off

set

—

menu level

7.4.3 - MENU 02 - chrono setting

Submenu 02 - 01 - enable chrono

Allows to enable and disable all the functions of the chronothermostat.

input

dialogue

fig. 17

menu level

fig. 18

Programming setting

05 : 40

M-2-3-02

PROG - 1

START

input livello di menù

dialogo

08 : 15

M-2-2-02

GIORNO

START 1

input livello di menù

dialogo

Submenu 02 - 02 - daily program

Allows to enable, disable and set the daily chronothermostat functions.

input

dialogue

It is possible to set two operating time periods delimited by the times set according to the following table where the OFF setting tells the clock to ignore the control:

selection meaning possible values

START 1

activation time

menu level

fig. 19

time - OFF

STOP 1

START 2

STOP 2

Submenu 02 - 03 - weekly program

Allows to enable, disable and set the weekly chronothermostat functions.

deactivation time

activation time

deactivation time

input

time - OFF

menu level

dialogue

fig. 20

The weekly programmer has 4 independent programs whose final effect is composed of the combination of 4 single programs. The weekly programmer can be activated or deactivated. Furthermore, by setting OFF in the time field, the clock ignores the corresponding command.

Attention: perform programming carefully, in general keeping from overlapping activation and/or deactivation times on the same day in different programs.

PROGRAM 1

Programming setting

menu level

02-03-02

02-03-03

02-03-04

02-03-05

PROGRAM 2

menu level

02-03-11

02-03-12

selection meaning possible values

START PROG 1

STOP PROG 1

MONDAY PROG 1

TUESDAY PROG 1

activation time

deactivation time

time - OFF

on / off

WEDNESDAY PROG 1 on / off02-03-06

THURSDAY PROG 1 on / off02-03-07

FRIDAY PROG 1 on / off02-03-08

SATURDAY PROG 1 on / off02-03-09

SUNDAY PROG 1 on / off02-03-10

selection meaning possible values

START PROG 2

STOP PROG 2

activation time

deactivation time

time - OFF

02-03-13

02-03-14

MONDAY PROG 2

TUESDAY PROG 2

WEDNESDAY PROG 2 on / off02-03-15

THURSDAY PROG 2 on / off02-03-16

FRIDAY PROG 2 on / off02-03-17

SATURDAY PROG 2 on / off02-03-18

SUNDAY PROG 2 on / off02-03-19

on / off

Programming setting

08 : 30

M-2-4-03

WEEK-END

STOP 1

input livello di menù

dialogo

PROGRAM 3

menu level

02-03-20

02-03-21

02-03-22

02-03-23

PROGRAM 4

menu level

02-03-29

02-03-30

selection meaning possible values

START PROG 3

STOP PROG 3

MONDAY PROG 3

TUESDAY PROG 3

WEDNESDAY PROG 3 on / off02-03-24

THURSDAY PROG 3 on / off02-03-25

FRIDAY PROG 3 on / off02-03-26

SATURDAY PROG 3 on / off02-03-27

SUNDAY PROG 3 on / off02-03-28

selection meaning possible values

START PROG 4

STOP PROG 4

activation time

deactivation time

activation time

deactivation time

time - OFF

on / off

time - OFF

02-03-31

02-03-32

Submenu 02 - 04 - weekend program

Allows to enable, disable and set chronothermostat functions in the weekend (days 5 and 6, namely Saturday and Sunday).

MONDAY PROG 4

TUESDAY PROG 4

WEDNESDAY PROG 4 on / off02-03-33

THURSDAY PROG 4 on / off02-03-34

FRIDAY PROG 4 on / off02-03-35

SATURDAY PROG 4 on / off02-03-36

SUNDAY PROG 4 on / off02-03-37

input

on / off

menu level

dialogue

fig. 21

fig. 18

Programming setting

MEnu 01

LINGUA

ITALIANO

livello di menù

dialogo

76”

22°C

INIZIALE

CARICO

timer temperatura acqua

dialogo

22°C

temperatura ambiente

SUGGESTION: in order to avoid confusion and unwanted starting and stopping operations, activate one program at a time if you do not know exactly what you want to achieve. Deactivate the daily program if you wish to use the weekly program. Always keep the weekend program deactivated if you use the weekly program in programs 1, 2, 3 and 4. Only activate the weekend program after having deactivated the weekly program.

7.4.4 - MENU 03 - choose language

menu level

Allows to select the dialogue language from those available.

fig. 22

dialogue

7.4.5 - MENU 04 - standby mode

Activates “STANDBY” mode which leads the heat stove to switch off after the water temperature has reached the setpoint beyond the time determined by the triggering of the external thermostat. Refer to paragraphs 7.5.8 to 7.5.9 for a detailed description of the Standby function.

7.4.6 - MENU 05 - buzzer mode

When “OFF”, it disables the acoustic alarm.

7.4.7 - MENU 06 - initial load

Allows to perform a pellet preloading for time of 90” with the heat stove off and cold. Start with key 1 and stop with key 3.

room temperature

water temperature

dialogue

fig. 23

fig. 20

Programming setting

117°C

1100

STATO 4

temperatura fumi

stato operativo

velocità aspiratore fumi

stato scambiatori 2 e 3

10”

82’

60 A2 13 V

230 V

timer 1

bassa tensione

time-out

tensione rete

GUASTO

ASPIRAT-

allarme in corso

7.4.8 - MENU 07 - heat stove status

Displays the instant status of the heat stove providing the status of the various devices connected to it. Various pages are available displayed one after another.

mains voltage low voltage

flue gas temperature flue gas intake fan speed

exchangers 2 and 3 status

operating status

fig. 24

fig. 25

alarm in progress

fig. 26

Programming setting

14 : 24

21°C

SPENTO

orologio temperatura ambiente

dialogo temperatura acqua

49°C

14 : 35

21°C

START

orologio temperatura ambiente

dialogo temperatura acqua

36°C

7.5 - USER OPERATING MODE

The normal operating mode of the panel installed on STILE 27 is described hereafter referring to the functions available for the user. The subsequent paragraphs analyse the technical programming mode.

Before starting up STILE 27, the display appears as follows.

clock

dialogue

7.5.1 - LIGHTING STILE 27

To light STILE 27, press 3 for a few seconds. Ignition is indicated on the display as shown in the following figure

room temperature

water temperature

fig. 27

clock

7.5.2 - STARTING PHASE

STILE 27 carries out the starting phases in sequence according to the modes defined by the parameters which manage their levels and times.

7.5.3 - FAILED IGNITION

After 20 minutes have elapsed, if the flue gas temperature has not reached the minimum allowed value + 2°C, STILE 27 goes into the alarm status.

dialogue

room temperature

water temperature

fig. 28

Programming setting

15 : 18

21°C

LAVORO

orologio temperatura ambiente

dialogo potenza

P-3

SET TEMP

valore impostato

dialogo

AMBIENTE

28°C

7.5.4 - HEAT STOVE WORKING

When the starting phase has ended successfully, the heat stove switches to working mode which represents the normal operating mode. If the temperature of the heat stove is greater than 50°C, the system pump switches on.

clock

dialogue

7.5.5 - CHANGING ROOM TEMPERATURE SETTING

To change the room temperature, just select the ROOM SETTING MODIFICATION mode by pressing key 4. Then press keys 1 and 2. The display shows the current temperature SETTING status. N.B. The thermostat leaves the factory with the external room thermostat bridged in order to disable the internal room probe function of the heat stove. This avoids unintentional modulations due to small environments. If you wish to use the room probe inside the heat stove, remove the bridge on the rear pin marked “room thermostat”.

room temperature

output

fig. 29

7.5.6 - USING EXTERNAL THERMOSTAT / CHRONOTHERMOSTAT

If you wish to use an external room thermostat, perform the connection on the back of the heat stove on the pin marked “room thermostat” in terminals T1 and T2.

· external thermostat: on STILE 27, set a temperature of 7°C.

· external chronothermostat: on STILE 27, set a temperature of 7°C and disable the chrono functions from the menu 03-01.

set value

dialogue

fig. 30

Programming setting

SET TEMP

valore impostato

dialogo

ACQUA

55°C

dialogo

orologio temperatura ambiente

16 : 40

27°C

LAVORO

potenza

P-2

MODULA

7.5.7 - CHANGING WATER TEMPERATURE SETTING

To change the water temperature, just select the WATER SETTING MODIFICATION mode by pressing key 6. Then press keys 1 and 2. The display shows the current temperature SETTING status.

set value

dialogue

7.5.8 - THE ROOM TEMPERATURE REACHES THE SET TEMPERATURE

(SET temperature)

When the room temperature has reached the set value, the heat output is automatically brought to the minimum value, MODULATION condition. N.B. This is only possible if the bridge of the room thermostat behind the heat stove has been removed.

clock

room temperature

fig. 31

If the STANDBY mode has been activated, STILE 27 switches off; namely is placed in STANDBY, with a 5 minute delay and after having exceeded the value (T

+ 2°C).

SET

dialogue

output

fig. 32

Programming setting

dialogo

orologio temperatura ambiente

16 : 40

LAVORO

MODULA

27°C 55°C

temperatura acqua

dialogo

orologio temperatura ambiente

22 : 25

ATTESA

RAFFRED-

24°C 56°C

temperatura acqua

7.5.9 - THE WATER TEMPERATURE REACHES THE SET TEMPERATURE

(SET water temperature)

When the water temperature has reached the set value, even simultaneously to that described in paragraph 7.5.8, the heat output is automatically brought to the minimum value, MODULATION condition.

clock

dialogue

Similarly to that which occurs for the room temperature, if the STANDBY mode has been activated, STILE 27 switches off; namely is placed in STANDBY, with a 5 minute delay and after having exceeded the value (T (only if the Wieland plug of the external TA has a bridge on T1 and T2).

7.5.10 - RESTARTING AFTER EXTINCTION HAVING REACHED SET ROOM AND/OR WATER

TEMPERATURE

After the STANDBY extinction, STILE 27 places itself in cooling condition bringing the flue gas intake fan to a maximum. See figure 21. The restarting conditions are:

room temperature

water temperature

+ 2°C).

SET

fig. 33

Air:

room < (TSET

Water:

water < (TSET

- 2°C) and simultaneously Tflue gas < 50°C

clock

dialogue

room temperature

water temperature

fig. 34

Programming setting

dialogo

orologio temperatura ambiente

16 : 40

22°C

PULIZIA

potenza

P-2

BRACIERE

dialogo

orologio temperatura ambiente

21 : 10

23°C

PULIZIA

potenza

P-3

FINALE

7.5.11 - CLEANING BRAZIER

During normal operation in working mode, at set intervals the “BRAZIER CLEANING” mode is activated.

clock

dialogue

7.5.12 - HEAT STOVE EXTINCTION

To switch STILE 27 off, just press button 3 for about 2 seconds. The feed screw stops immediately and the flue gas extractor switches to high speed. The FINAL CLEANING phase is performed. The flue gas extractor is disabled after the flue gas temperature has dropped below 50°C.

room temperature

output

fig. 35

clock

dialogue

room temperature

output

fig. 36

Programming setting

dialogo

orologio temperatura ambiente

21 : 10

22°C

SPENTO

potenza

P-1

dialogo

orologio temperatura ambiente

21 : 25

21°C

ATTESA

potenza

P-1

RAFFRED-

7.5.13 - HEAT STOVE OFF

clock

dialogue

7.5.14 - RE-IGNITION OF THE HEAT STOVE

It will not be possible to restart the heat stove until the flue gas temperature has dropped below 50°C and 5 minutes have passed.

clock

room temperature

output

room temperature

fig. 37

dialogue

output

fig. 38

7.6 - WHAT HAPPENS IF ...

12 : 42

MANCATA

ACCENS-

22°C

12 : 42

PULIZIA

FINALE

22°C

7.6.1 - THE PELLET DOES NOT LIGHT

In case of failed ignition, the alarm message NO ACC appears.

Programming setting

Press key 3 to restore STILE 27 to standard conditions.

7.6.2 - ELECTRIC POWER IS MISSING

If the mains voltage is missing for over 60 seconds, when it is restored, STILE 27 will place itself in the FINAL CLEANING status and remains in standby until the flue gas temperature has dropped to 50°C, then signalling the blackout alarm. If the mains voltage is restored before 60 seconds have elapsed, the heat stove goes back to normal functioning.

fig. 39

fig. 40

Programming setting

12 : 42

ALARM

SOND

22°C

12 : 42

ALARM

HOT TEMP

22°C

7.7 - ALARMS

Should any operating faults occur, the board intervenes and signals this irregularity operating differently according to the type of alarm. The following alarms are foreseen.

Source of alarm

Flue gas temperature probe

Flue gas overtemperature

Failed ignition

Extinction during working phase

General safety thermostat

Blackout

Water probe failure

Water overtemperature

Each alarm condition causes STILE 27 to be extinguished immediately.

The alarm status is reached after 30 seconds and can be reset by pressing the key 3.

Display viewed Codes

FLUE GAS PROBE ALARM

ALARM HOT TEMP

ALARM NO FIRE

COOL FIRE (see par.7.6.2) AL 1Power missing

ALARM DEEP FAIL

ALARM SAFETY FAIL

ALARM FAN FAIL

BLACK OUT AL 1

ALARM PRES.

H2O PROBE ALARM AL 9

ALARM HOT H2O

AL 2

AL 3

AL 5

AL 6

AL 8Feeding screw safety pressure switch

AL 7

AL 4Flue gas fan failure

AL 11Water pressure beyond allowed values

AL 10

7.7.1 - FLUE GAS TEMPERATURE PROBE ALARM

Triggers when the probe detecting flue gas is faulty or disconnected. During the alarm condition, STILE 27 performs the extinction procedure.

7.7.2 - FLUE GAS OVER TEMPERATURE ALARM

Triggered when the flue gas probe detects a temperature higher than 250°C.

fig. 41

fig. 42

7.7.3 - FAILED IGNITION ALARM

12 : 42

ALARM

NO ACC

22°C

12 : 42

ALARM

NO FIRE

22°C

12 : 42

ALARM

Dep

22°C

Triggered when the ignition phase fails.

Programming setting

The extinction procedure is activated immediately.

7.7.4 - EXTINCTION DURING WORKING PHASE ALARM

If during the working phase the fire goes out and the flue gas temperature drops below the minimum working threshold of 50°C, the alarm triggers.

The extinction procedure is activated immediately.

7.7.5 - SCREW SAFETY PRESSURE SWITCH ALARM

Should the pressure switch (depression security thermostat) detect a pressure beyond the standard, it triggers to switch the feed screw off (in series with its power supply) and simultaneously, via the terminal AL2 in CN4, allows the controller to acquire this status change. The message “ALARM DEEP FAIL” appears and the system is stopped.

fig. 43

fig. 44

fig. 45

Programming setting

12 : 42

ALARM

SIC

22°C

12 : 42

ASPIRAT

GUASTO

22°C

7.7.6 - GENERAL THERMOSTAT ALARM

Should the pellet safety thermostat detect a temperature higher than the triggering threshold, it intervenes switching the feed screw off (in series with its power supply) and simultaneously, via the terminal AL1 in CN4, allows the controller to acquire this status change. The message “ALARM SAFETY FAIL” appears and the system is stopped.

fig. 46

7.7.7 - FLUE GAS INTAKE FAN FAULT ALARM

In the event of a failure of the flue gas intake fan, the heat stove stops and the message ALARM FAN FAIL appears as in the following figure.

The extinction procedure is activated immediately.

fig. 47

Programming setting

TARATURE

TECNICO

MEnu 08

7.8 - OPERATING MODE (TECHNICAL MENU)

To access the TECHNICAL MENU, press the button (7) MENU and scroll the various submenus with the keys 1 and 2 keys until the level 08 menu appears as in the following figure.

fig. 48

level 1

08 - technician settings

level 2 level 3 level 4 value

01 - pellet type

set02 - chimney type

see database03 - database

04 - various settings

01 - re-ignition block

02 - min. intake off

03 - ignition preloading

04 - flame standby

05 - preload flue gas intake 06 - delta on/off auto

value

value value

07 - delay off auto value

08 - output change

09 - enable remote on / off

10 - keyboard lock on / off

11 - blackout on / off

12 - service hours (*) on / off

13 - lambda probe (*) on / off

14 - inlet flow (*)

15 - free (*)

16 - free (*)

value

on / off

Programming setting

level 1 level 2 level 3 level 4 value

05 - outputs test

06 - factory settings

07 - reset part. hours

09 - counter memories

01 - igniter test

02 - screw test

03 - flue gas test

04 - pump test

05 - fan 2 test (*)

06 - fan 3 test (*) value

password

password08 - reset alarms

total hours partial hours

start number

alarm log 1

value

(*) not available if not enabled.

alarm log 2

alarm log 3

alarm log 4

alarm log 5 -

7.8.1 - Submenu 08 - 01 - 01

CARICA

PELLET

M-8- 1-01

ASP-FUMI

CAMINO

M-8- 2-01

Programming setting

Select the pellet feeding variation value with 1 and 2. Confirm with 7.

7.8.2 - Submenu 08 - 02 - 01 chimney type

Select the flue gas intake fan speed variation value with 1 and 2. Confirm with 7.

7.8.3 - Submenu 08 - 03 database

The device has a series of default settings inside called DATABASE (recipes). These settings, the number of which depends on the version of the device, are available and non-modifiable to allow, for example, adaptation to several types of pellets and/or flue gas discharge pipes without needing to program one parameter at a time, or depending on particular needs. To load the recipes, just type in the correct code corresponding to the desired database, referring to the table in ANNEX A.

fig. 49

fig. 50

7.8.4 - Submenu 08 - 04 various settings

Allows to set a series of operational parameters. Refer to ANNEX A.

7.8.5 - Submenu 08 - 05 outputs test

Select the output device to activate. For the flue gas intake fan and heat exchanger fans it is possible to set the voltage to be applied during the test. For the feeding screw, it is possible to pre-establish the activation time for the test. Scroll with keys 4 - 5, confirm with keys 1 - 2. Pressing the key 3 interrupts the test.

7.8.6 - Submenu 08 - 06 factory settings

With this function, the flue gas probe is linearized in the factory (see paragraph 7.7.1).

7.8.7 - Submenu 08 - 07 reset partial hours

Accessible only with password. Resets the partial operating hours at zero.

Programming setting

ADJ SOND

FUMI

M-8- 7

23°C

7.8.8 - Submenu 08 - 08 alarm reset

Cancels the memory of the latest alarms triggered. Accessible only with password.

7.8.9 - Submenu 08 - 09 counter memories

By pressing the keys 6 and 5, the following memory records are displayed in sequence:

• Total hours

• Partial hours

• Number of starts

• Alarm log 1

• Alarm log 2

• Alarm log 3

• Alarm log 4

• Alarm log 5

7.8.10 - Flue gas probe calibration

The flue gas probe does not require calibration as it is already linearized in the factory. The value on the display represents the probe temperature. Press the keys 1 and 2 (decrease and increase temperature) to have this value correspond to the temperature detected by the thermometer near the probe. In practice, if the operation is performed with the heat stove off and cold, the reading just needs to correspond with the room temperature detected by the thermometer of reference.

See the example in the following figure.

Confirm calibration by pressing the key 7.

fig. 51

Programming setting

ANNEX A: Parameters table

The following is a table of the parameters. The values indicated in the column on the right refer to some of the existing DATABASES which can undergo variations depending on the version.

Parameter

Pr01 M-8-6-01 Maximum time of ignition cycle second 5 - 25

Pr02

Pr03 M-8-6-03 Time interval between two brazier cleaning operations minute 3 - 240

Pr04 M-8-6-04 Time screw motor ON during ignition

Pr05 M-8-6-05 Time screw motor ON during start-up

Pr06

Pr07 M-8-6-07 Time screw motor ON during working

Pr08 M-8-6-08 Time screw motor ON during working

Pr09 M-8-6-09 Time screw motor ON during working

Pr10 M-8-6-10 Time screw motor ON during working

Pr11 M-8-6-11 Alarm delay second 20 ... 90

level

M-8-6-02 Start-up time minute 2 - 12

M-8-6-06 Time screw motor ON during working

Description

phase

phase at output 1

phase at output 2

phase at output 3

phase at output 4

phase at output 5

Unit of

measurement

second 0,1 ... 8

Admitted value

range

20R320R420

5 5 5 5

30 30 30 30

1 1 1 1

1,2 1,2 1,2 1,2

1,8 1,8 1,8 1,7

3,1 3,1 3,1 3,0

4,4 4,4 4,4 4,2

5,7 5,7 5,7 5,5

7 7 7 6,7

30 30 30 30

Pr12 M-8-6-12 Brazier cleaning duration second 0 ... 120

Pr13 M-8-6-13 Minimum flow gas temperature to consider

heat stove on

Pr14 M-8-6-14 Flue gas temperature to switch to

ECO-MODULA mode

Pr15 M-8-6-15 Flue gas temperature threshold to switch on

the heat exchangers

Pr16

Pr17

Pr18 M-8-6-18 Flue gas intake speed during working phase

Pr19

Pr20 M-8-6-20 Flue gas intake speed during working phase

Pr21 M-8-6-21 Flue gas intake speed during working phase

Pr22 M-8-6-22 Flue gas intake speed during working phase

M-8-6-16 Flue gas intake speed during

ignition

M-8-6-17 Flue gas intake speed during start-up phase rpm 500 ... 2800

at output 1

M-8-6-19 Flue gas intake speed during working phase

at output 2

at output 3

at output 4

at output 5

°C 40 ... 180

°C 110 ... 250

°C 24 ... 90

rpm 500 ... 2800

rpm 500 - 2800

60 60 60 60

50 50 50 50

250 250 250 250

90 90 90 90

1000 1000 1000 1000

1100 1100 1100 1100

900 1100 1100 1100

1000 1100 1200 1200

1100 1200 1300 1300

1450 1550 1650 1650

1600 1700 1800 1800

Pr23

Pr24 M-8-6-24 Heat exchanger 1 motor speed during

M-8-6-23 Heat exchanger 1 motor speed during

working at output 1

working at output 2

volt 65 ... 225

volt 66 ... 225

130 130 130 130

150 150 150 150

Programming setting

Parameter

Pr25 M-8-6-25 Heat exchanger 1 motor speed during

Pr26 M-8-6-26 Heat exchanger 1 motor speed during

Pr27 M-8-6-27 Heat exchanger 1 motor speed during

Pr28

Pr29

Pr30 M-8-6-30 Time screw motor ON during cleaning

Pr31 M-8-6-31 Encoder enabling - 0 ... 1

Pr32 M-8-6-32 Screw braking time second 0 ... 0,5

Pr33 M-8-6-33 Pump activation threshold °C 20 ... 70

Pr34 M-8-6-34 Disable pressure transducer - 0 ... 1

Pr35 M-8-6-35 Water pressure threshold bar ...

level

M-8-6-28 Maximum temperature alarm threshold °C 50 ... 280

M-8-6-29 Flue gas intake speed during

Description

working at output 3

working at output 4

working at output 5

brazier cleaning

phase

Unit of

measurement

volt 67 ... 225

volt 68 ... 225

volt 69 ... 225

rpm 700 ... 2800

second 0 ... 4

Admitted value

range

170R3170R4170

170

185 185 185

185

225 225 225

225

90 90 90

2000 2000 2000 2000

0,8

0,2

...

0,8 0,8

1 1

0,2 0,2

50 50

0 0

... ...

0,8

0,2

...

Parameter

Pr36 M-8-4-01 Re-ignition block

Pr39

Pr40 M-8-4-03 Preloading time at ignition second 0 ... 255

Pr41

Pr42

Pr43

Pr44 M-8-4-07 Switch off delay in

Pr45 M-8-4-08 Output change delay 0 ... 60second

Pr46 M-8-4-09 Enable remote control 0 ... 1-

Pr47

Pr48 M-8-4-11 Automatic re-ignition after

level

M-8-4-02 Flew gas intake fan switch off time minutes 0 ... 20

M-8-4-04 Standby time after preloading second 0 ... 255

M-8-4-05 Flue gas intake fan speed during

M-8-4-06 ON/OFF temperature hysteresis in

M-8-4-10

Description

preloading

automatic mode

Enable keyboard lock 0 ... 1-

blackout

Unit of

measurement

minute 0 ... 10

rpm 600 ... 2800

°C 0 ... 30

minutes 0 ... 120

Admitted value

range

0 ... 60second

R15R25R35R4

10 10 10

100

2300

100

0 0 0

2300 2300 2300

2 2

5 5

20 20

0 0

60 60

100

Pr04, ecc. Pr04, ecc. Pr04, ecc.

T T T

How to interpret timing parameters

CALDAIA OFF

Fase di accensione della caldaia

VENTILATORE ON

CARICA PELLET

PRECARICA

ACCENSIONE

ATTESA

CARICA

accensione caldaia

temperatura

fumi

comando

pompa

comando

asp. fumi

comando

coclea

candeletta stato

impianto

Pr33 - temperatura

pompa accesa

temperatura

acqua

Tmax = Pr01

T = 90”

Pr40 Pr41

Pr04 Pr05

bassa

off

alta

off

of the feeding screw

The feeding screw operating control is timed and is structured as follows: A period is defined T= 8s. In this period, the motor is activated for the time Pr04, Pr05, Pr06, Pr07, Pr08, Pr09 and Pr10 according to the operational phase.

ANNEX B: Start sequence and work conditions

room temperature

Boiler ignition phase

Programming setting

fig. 52

status

system

igniter

screw

control

flue

control

gas intake

pump

control

high

low

flue gas

temperature

BOILER OFF FAN ON

Pr15 – temperature

pump on

Water

temperature

PELLET LOADING IGNITION

PRELOADING

STANDBY

boiler ignition

fig. 53

Programming setting

LAVORO

Fase di lavoro della caldaia

PULIZIA BRACIERE

temperatura

fumi

comando

pompa

comando

asp. fumi

comando

coclea

candeletta stato

impianto

Pr15 - temperatura

scambiatore acceso

T = Pr03

off

alta

off

LAVORO

T = Pr12 T = Pr03

da Pr23 a Pr27

Pr22

da Pr18 a Pr22da Pr18 a Pr22

Pr06

Pr10

Pr06

Pr10

bassa

Boiler working phase

status

system

igniter

screw

control

flue

control

gas intake

pump

control

flue gas

temperature

high

low

WORKING

from Pr06

Pr10

from Pr18 to Pr22

Pr15 – temperature

heat exchanger on

CLEANING BRAZIER

from Pr23 to Pr27

WORKING

from Pr06

Pr10

from Pr18 to Pr22

fig. 54

Notes

AG S.P.A.

46033 casteldario - mantova - italy - tel. 0376/57001 (r.a.) - telefax 0376/660556

Unical will not be held responsible for possible inaccuracies if due to transcription or printing errors. It also reserves the right to modify its products as deemed necessary or useful, without jeopardising their essential features.

www.unical.eu - info@unical-ag.com

Unical STILE 27 Instructions For Installation, Maintenance And Use

Specifications and Main Features

Frequently Asked Questions

User Manual