Pellet Compact Pellet Compact Bio Unit Pellet Save Bio Unit · Pellet Compact Pellet Compact Bio...

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Pellet Compact Pellet Compact Bio Unit Pellet Save Bio Unit INSTRUCTION MANUAL Version: 1.0

Transcript of Pellet Compact Pellet Compact Bio Unit Pellet Save Bio Unit · Pellet Compact Pellet Compact Bio...

Page 1: Pellet Compact Pellet Compact Bio Unit Pellet Save Bio Unit · Pellet Compact Pellet Compact Bio Unit Pellet Save Bio Unit INSTRUCTION MANUAL Version: 1.0 . Table of Contents 1 GENERAL

Pellet Compact Pellet Compact Bio Unit Pellet Save Bio Unit

INSTRUCTION MANUAL

Version: 1.0

Page 2: Pellet Compact Pellet Compact Bio Unit Pellet Save Bio Unit · Pellet Compact Pellet Compact Bio Unit Pellet Save Bio Unit INSTRUCTION MANUAL Version: 1.0 . Table of Contents 1 GENERAL

Table of Contents 1 GENERAL INFORMATION 4 2 SCOPE OF DELIVERY (SHIPPING CONDITION) 4

3 TECHNICAL CHARACTERISTICS, INTENDED USE OF THE BOILFER, TYPES OF FUELS 5

3.1 Boiler description 5 3.2 Types of fuel 5 3.3 Feeding screw 6 3.4 Silo 6 4 FUELS 6 4.1 General 6 4.2 Pellet 6 4.3 Oil and Gas 6 5 TECHNICAL DATA - DIMENSIONS 7 5.1 Technical data 7 5.2 Dimensions 8 6 DESIGN AND INSTALLATION RECOMMENDATIONS 9 6.1 Boiler installation 9 6.2 Hydraulic system installation 12 6.3 Installation safety 15 6.4 Chimney system 18 6.5 Electrical wiring system 19 7 OPERATION AND MAINTENANCE 19 8 TROUBLESHOOTING 20

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THERMOSTAHL would like to thank and congratulate you on your purchasing this boiler device and ensure that you have made a good choice. BIODROP boiler is a fail-proof product made of the highest quality materials by the large, known and reliable production factory. THERMOSTAHL brand guarantees satisfaction for the customer. Please read this Operation and Maintenance Documentation (OMD) and get familiarized with the terms and conditions of the guarantee before installing and operating the boiler.

1. GENERAL INFORMATION The Operation and Maintenance Documentation constitutes an integral part of the boiler and should be delivered to the user with the device.

Installation should be carried out in accordance with the recommendations contained in this documentation as well as applicable standards and best construction practices.

Operational use of the boiler based on this documentation shall guarantee safe and failure-free operation and shall constitute the basis for possible guarantee claims.

The Manufacturer (Thermostahl) shall reserve the right to modify production engineering, technical data, dimensions, appearance and boiler equipment without prior notice.

THERMOSTAHL shall not be responsible for damages resulting from improper installation of the device and for failure to comply with the terms and conditions set forth in the Operation and Maintenance Documentation.

2. SCOPE OF DELIVERY (SHIPPING CONDITION) Pellet Compact Bio-Unit boiler shall be delivered as follows:

9 The complete boiler body with the boiler doors,

9 Packaging with the casing, thermal insulation with harnesses and turnbuckles for its clamping,

9 Silo,

9 Control panel (charged separately),

9 Cleaning tools,

9 Technical manual.

Additionally, the pellet burner shall be delivered as follow:

9 Pellet burner

9 Feeding screw

9 Flange for the connection with the boiler

9 Cleaning tool for the burner

9 Connection hose,

9 Technical manual of the burner

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3. TECHNICAL CHARACTERISTICS, INTENDED USE OF THE BOILER, TYPES OF FUELS 3.1. Boiler description

The boiler of Pellet Compact Bio-Unit type is a low-temperature, steel water boiler. It is a complete pellet system with boiler, pellet burner, feeding screw and silo for heating. All the parts work perfectly with the higher efficiency and provide constant operation with reliability.

The ignition and the operation are completely automatic. Because pellet contains ash amount (<1%), it is required the often cleaning of the boiler to avoid problems during the operation of the system.

3.2. Pellet burner

The pellet burners are developed and manufactured by Megatherm. Thanks to the construction with a forward burning flame, this burner will give the most effective combustion and it is easy to fit it to the boiler. There are 3 models available and suitable with the boilers. The models are; Nani 35, MPB 50 and MPB 80. The heat output of the burners are 10-35kW, 25-50kW and40-80kW and it is adjusted depended on the heat losses and the boilers it is installed.

Boiler type PLC 23 PLC 35 PLC 47 PLC 58 PLC 69 PLC 81 PLC 93 PLC 116

Burner type MPB 35 MPB 50 MPB 80

MPB 35 and MPB 50

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3.3. Feeding screw

The outer feeding screw provides the necessary fuel supply to the burner. The one end inserted into the fuel tank (silo), while in the other there is the motor of the screw, and the nozzle for the drop of pellet into the burner via a plastic connection hose. The hose is made of a fusible plastic that melts for safety in temperature of 100oC.

The hose must be sufficiently taut and have sufficient slope to permit free flow of pellets and not block the fuel. The connection must be tight and clamped via the provided clamps, for protection against return exhaust gases.

3.4. Silo

The silo is used to the store the pellet. The silo is placed above the boiler. It has inner inclined sides to permit the free fall of fuel supply to the feeding screw without leaving residues. It has a slide cover, window for fuel level inspection and flange with neck stabilization of the screw. When filling the tank avoid entering into the silo foreign objects such as stones, pieces of wood, plastic or metal materials, etc., which can cause damage to the feeding screw.

4. FUELS 4.1. General

Pellet Compact Bio-Unit boilers are designed for pellet, with high efficiency, reliability and easy maintenance. Additionally, it is a boiler that can work perfectly with heating oil or gas burner as well. In case of burner changed it is may needed an extra flange for the connection with the boiler.

4.2. Pellet

The pellet burner can operate only with high quality wood pellet. Any other fuel can cause problem to the burner.

The pellet is 100% natural product and renewable energy source. It is constructed by forest residues, woods, etc. The wood pellet is produced exclusively from wood, without other additives and chemicals.

4.3. Oil and gas

The boiler can be operated with oil or gas with very good performance, with a simple change of the burner.

Fuel switching may require special flange to fit the new burner to the boiler door. The company is not responsible for the commission of the flange.

The burner is not part of the boiler, and is not covered by the regulations of this manual neither the warranty of the boiler. If mounted oil burner should be installed in accordance with applicable regulations and be accompanied for the proper and safe use.

Pellet Specifications Diameter 6-8 mm Length 6-30,5 mm Density 650-700 kg/m3 Ash <0,7% Heating value >4,7 kWh/kg Humidity <10%

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5. TECHNICAL DATA – DIMENSIONS 5.1. Technical Data

Type PLC 23 PLC 35 PLC 47 PLC 58

Heating power kcal/h 20.000 30.000 40.000 50.000 KW 23 35 47 58

Efficiency % 92 92 92 92 Operating pressure bar 2 2 2 2 Max operating pressure bar 3 3 3 3 Operating temperature (max)

oC 95 95 95 95

Inlet temperature(min) oC 60 60 60 60 Exhaust gases temperature (max)

oC 180 180 180 180

Chimney convection Pa -12 -12 -12 -12 Silo volume lit 170 170 200 200 Water content lit 80 100 120 140 Combustion chamber volume

lit 72 84 96 108

Weight of compact unit (empty) kg 270 290 310 330

Type PLC 69 PLC 81 PLC 93 PLC 116

Heating power kcal/h 60.000 70.000 80.000 100.000 KW 69 81 93 116

Efficiency % 92 92 92 92 Operating pressure bar 2 2 2 2 Max operating pressure bar 3 3 3 3 Operating temperature (max)

oC 95 95 95 95

Inlet temperature(min) oC 60 60 60 60 Exhaust gases temperature (max)

oC 180 180 180 180

Chimney convection Pa -12 -12 -14 -14 Silo volume lit 250 250 300 300 Water content lit 160 190 220 250 Combustion chamber volume

lit 130 156 182 208

Weight of compact unit (empty)

kg 395 420 445 470

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5.2. Dimensions

Type PLC 23 PLC 35 PLC 47 PLC 58 A mm 660 660 660 660 B mm 835 835 835 835 B1 mm 1740 1740 1740 1740 C mm 1200 1200 1400 1400 D mm 585 585 585 585 E mm 345 345 345 345 F mm 125 125 125 125 G mm 860 860 860 860 H mm 575 575 575 575 I mm 550 650 750 850 K mm 500 600 700 800 Φ1 mm 150 150 150 150 Φ2 mm 180 180 180 180 Τ1-Τ2 in 1  ¼’’ 1  ¼’’ 1  ¼’’ 1  ¼’’ Τ3 in ½’’ ½’’ ½’’ ½’’

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Type PLC 69 PLC 81 PLC 93 PLC 116 A mm 773 773 773 773 B mm 905 905 905 905 B1 mm 1810 1810 1810 1810 C mm 1400 1500 1600 1700 D mm 698 698 698 698 E mm 345 345 345 345 F mm 135 135 135 135 G mm 930 930 930 930 H mm 610 610 610 610 I mm 800 900 1000 1100 K mm 750 850 950 1000 Φ1 mm 180 180 180 180 Φ2 mm 180 180 180 180 Τ1-Τ2 in 1  ½’’ 1  ½’’ 1  ½’’ 2’’ Τ3 in ½’’ ½’’ ½’’ ½’’

6. DESIGN AND INSTALLATION RECOMMENDATIONS

6.1. Boiler installation Jackets assembling: Jacket (covers) assembling on the boiler body is done easy and fast respecting the following instructions. Fitting order is the following: a. Fit first the insulation and the side covers. b. Fit the upper cover. c. Screw in the upper front of the side covers the control panel and in the back the cover for the smoke box. d. Fit the insulation and cover for the front door by screwing first the connecting screws between the door and jacket. The boilers can be installed in their own room, in the basement, ground floor or the upper floors of the production buildings from category C, D and E of fire danger warehouses of incombustible materials and civil buildings, according the valid legislation. ATENTION! It is prohibited to install a boiler in a room with a common wall with rooms with people that cannot evacuate themselves (hospitals, shops, kindergartens, daycare centers, etc) or under the evacuation ways of those. BOILER LOCATION must be separate of the joined rooms by walls, incombustible doors and without window holes. Space dimensions: We advise that the boiler installation must be made in such a way that there is enough space for easy cleaning and maintenance. Boiler must be installed on horizontal plan and if possible easy to be accessed on all sides. Burner must be installed on the front door and fastened with the screws on its special flange. The auger must make an angle of 45 degrees with the floor. The distance between the front wall and the boiler: at least 1,5 m. The distance between the front wall and the boiler: the adequate distance that allows an easy access for checking and maintenance.

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The distance between the side wall and the boiler: at least 0,6 m. The high of the boiler room: – at least 2,5 m. According PT C 9-2003 the access in the boiler room of foreign people except the boiler operator is prohibited. The ISCIR-INSPECT IT inspectors and the technical surveillance personal may enter the boiler room, any time on the basis of control written approval. ATENTION! It is forbidden to give another destination to the boiler room except the one established by project. The access and maintenance spaces must be always free and the access doors. In the boiler rooms with nominal power greater than 300 kW there must be a telephone or other means of fast communication with the exterior that may avoid unjustified departures of the operators from the boiler room. In the boiler room there will be placed in visible places operating instructions for the specific boilers in the room. There will be also posted internal instructions and obligations of the operating personnel and the way of operating the boiler.

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Observation: The boiler room must be: a. clean; b. without flammable objects; c. with drainage system; d. supplied with enough fresh air; e. separated by the liquid fuel tanks who will be installed in well ventilated, separate  spaces  outside  the  boiler  room.  If  they  are  placed  in  the  boiler  room  they’ll  be separated by a wall, in conformity with the valid safety regulations; f. a fire extinguisher with dry powder, and next to the door a portable extinguisher; g. with a safe chimney with an adequate section; h. with a smoke detector installed on the ceiling in case the building is designed with a fire alarm system; i. the door must be metallic without grids or windows and to open in the outside; It is forbidden to install the boiler in spaces with lots of dust, dangerous gases, and in wet areas such as bathrooms with great humidity.

Type Dimensions [mm]

A1 A2 A3 A4 H H1 L1 L2

PLC 20 1100 >700 1200 1500-3000 1700 >2300 >1000 >600

PLC 30 1100 >700 1200 1500-3000 1700 >2300 >1000 >600

PLC 40 1100 >700 1200 1500-3000 1700 >2300 >1000 >600

PLC 50 1100 >700 1200 1500-3000 1700 >2300 >1200 >600

PLC 60 1800 >780 1200 1500-3000 1700 >2300 >1200 >600

PLC 70 1800 >780 1200 1500-3000 1700 >2300 >1200 >600

PLC 80 1800 >780 1200 1500-3000 1700 >2300 >1200 >600

PLC 100 1800 >780 1200 1500-3000 1700 >2300 >1200 >600

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6.2. Hydraulic system installation

Connection with indirect heated storage

Installation drawing of a Pellet Compact Bio-Unit with water storage tank for domestic hot water

1. Boiler 2. Closed type expansion tank 3. 3 bar safety set (safety valve, automatic air vent, manometer) 4+5. Circulator and 3 way safety valve 6. Y-type strainer 7. Filter 8. Automatic feeling with manometer 9. Filter 10. Indirect heated storage with one serpentine 11. Safety valve 12. 3-way diversion valve 13. Radiators – Heating installation RS Ball valve CS Check valve RG Drain tap TC Room thermostat MC Control panel SB Boiler sensor

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Connection with buffer tank

Installation drawing of a Pellet Compact Bio-Unit with buffer tank

1. Boiler 2. Closed type expansion tank 3. 3 bar safety set (safety valve, automatic air vent, manometer) 4+5. Circulator and 3 way safety valve 6. Y-type strainer 7. Filter 8. Automatic feeling with manometer 9. Filter 10. Buffer tank 11. TP safety valve 12. Heating and DHW Circulator 13. 3-way diversion valve 14. Indirect heated storage with one serpentine 15. Safety valve 16. Radiators – Heating installation RS Ball valve CS Check valve RG Drain tap TC Room thermostat MC Control panel SB Boiler sensor

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Connection with second boiler

Installation drawing of a Pellet Compact Bio-Unit with second boiler

1. Boiler 2+3. Oil boiler and oil burner 4. Closed type expansion tank 5. 3 bar safety set (safety valve, automatic air vent, manometer) 6+7. Circulator and 3 way safety valve 8. Y-type strainer 9. 3 way mixing valve 10. Buffer tank 11. TP safety valve 12. Indirect heated storage with one serpentine 13. Filter 14. Filter 15. Automatic feeling with manometer 16. Heating and DHW Circulator 17. 3-way diversion valve 18. Boiler safety valve 19. Radiators – Heating installation RS Ball valve CS Check valve RG Drain tap TC Room thermostat MC Control panel SB Boiler sensor

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6.3. Installation safety 3 bar safety kit

It consists of a collector, manometer, safety valve and automatic air vent. It is fixed to the input of hot water. For safety reasons, if not installed any of the following protective systems must be installed and the second valve.

Regularly check the correct operation of safety valves. In case of wear or damage, replace them immediately with new ones.

3 bar safety kit.

By-pass system with load units Boiler has to operate for a temperature difference 10 to 15oC and to insecure that the temperature of the return water is over 50oC. This insures the smooth operation of the boiler and generally the right operation, the constant performance and the long lifetime.

To insure that the temperature difference will be between 10 and 15oC the installation needs a recirculation pump and a 3-way thermostatic valve. This system insures the right temperature of return water and also the right temperature of water at the radiators.

The ESBE series LTC100 is a load unit designed to protect the boiler from return temperatures that are too low. Maintaining a high and stable return temperature enables a higher level of boiler efficiency, reduced tarring and increased life span of the boiler. The integrated pump offers boiler protection and optimal tank loading.

The LTC100 is used in heating applications where solid fuel boilers are used to feed storage tanks.

The load unit consists of an integrated pump and thermic valve, designed to make both assembly and handling easy. The load unit is protected by an insulation shell and is fitted with easily readable thermometers.

The valve regulates on two ports, which makes it easy to install and does not require any balancing valve in the bypass pipe.

The LTC100 has an integrated auto-circulation function which makes the unit operational even during power failure or pump failure. The circulation function is blocked at delivery, but can easily be activated if required.

The valve contains a thermostat which begins to open connection A at an outgoing mixed water temperature in connection AB  of  50°C,  55°C,  60°C,  65°C,  70°C  or  75°C.  Connection B is fully closed when the temperature in connection A exceeds the nominal  opening  temperature  with  10°C.

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ESBE LTC 100, load unit.

Overheating protection system This thermostatic recooling two-way valve is designed to protect central-heating heat sources against overheating. The fill and drain valves in its brass body are controlled by a thermostatic element. When the limit temperature is reached, the drain valve opens, enabling the overheated water escape from the heat source into the sewer system. At the same time, the filling valve opens to let cold water in from the mains. As soon as the water temperature drops below the limit, both the valves close.

If the pressure in the mains could be above 6 bar, it is necessary to install a pressure reducer at the inlet of cooling water. It should be installed as well if the pressure in the heating system is too high after recooling. In such cases the pressure of the reducing valve should be set approximately to a double value of the pressure required in the heating system, not less than 2 bar.

Warning: This valve is NO substitution for a safety valve.

Technical Data

Opening temperature (limit) 97±2oC

Max operation temperature 120oC

Max boiler pressure 4 bar

Max network pressure 6 bar

Nominal flow rate at pressure difference of 1 bar

1.8m3/h at 110oC temperature

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Temperature and pressure relief valve The T&P valve has a temperature sensor and provides double safety against temperature (90oC) and pressure (3 bar). The output of the valve should be connected with the drain for the disposal of the overheated water. The T&P valve should be connected nearby to the boiler and necessary at the outlet. It provides safety in case of closed type expansion tank installation but it is not replace the overheating safety system.

Technical data:

Temperature (limit) 90οC Pressure (limit) 3 bar Connection ½” Discharge rating: 10 kW

Dimensions

A B C D E F

½” Ø15 40 102 88 39

Thermal protection of the boiler The boiler should be operated within the supply and return water temperature

differences in the range of 10 – 15°C.

Because of the lifecycle of the boiler, it should be operated with the return water  temperature  not  lower  than  60°C.

In practice, it is difficult to meet this condition because the average atmospheric   conditions   during   the   entire   heating   season   “require”   lower  settings.

In order to ensure the required return water temperature the following solutions are suggested:

Higher settings on the boiler (possible only with low external temperatures).

Recommended use of a mixing system based on the application of a three-way mixing valve

with a boiler circulator (the solution ensuring the proper temperature of both the return water and the central heating system)

Boiler water requirements:

water for filling up boilers and heating installations should comply with the requirements of the PN-93/C-04607 standard,

the boiler water should have the following parameters:

- pH value > 8.5

- total hardness < 20of

- free oxygen content < 0,05 mg/l

- chlorides content < 60 mg/l.

the used water treatment technology for filling up the heating installation should comply with the requirements referred to above,

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In the event of failing to comply with the above-mentioned requirements, THERMOSTAHL may withdraw the guarantee for the installed boiler (boilers).

6.4. Chimney system It should be installed as an acid-proof, double-wall, insulated chimney, or in

the case of chimneys made of brick, comply with the requirements of the PN89/B-10425 standard; the technical parameters of the chimney should ensure its protection against the effects of the condensate resulting from cooling of the flue gas. Use of acid-proof chimney inserts (tin, stoneware, etc.) is recommended.

The section of the chimney can be calculated following the formula provided below:

D = 20(3+P)1/2 [m2]; where: D-diameter in mm, P-boiler power rating in kW.

The chimney diameter may not be less than the diameter of the flue. Connecting several boilers to one common chimney flue is not recommended.

The connection of the boiler to the chimney should be thermally insulated and run the shortest possible way with the least possible number of pipe elbows, with the appropriate height of the flue towards the chimney.

The chimney should be freely open towards the top and built at least 1 m above the roof,

The diameter of the flue gas duct should be selected (calculated) in accordance with the recommendations of the manufacturers of the chimney inserts, however it should not be less than the diameter of the boiler flue.

Installation of an inspection door for removing combustion residues should be envisaged,

The entire length of the chimney should be maintained clean,

Before connection the boiler to the chimney the user should obtain a positive opinion  of  the  chimney  cleaners’  specialist.

A graph for selecting the chimney diameter in relation to the boiler power rating and the chimney height, including the provided values of the chimney draught.

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6.5. Electrical wiring

General information

The electrical installation must be done by a qualified electrician in accordance with applicable regulations EN 60529 and EN 60335-1 and protection IP 40 and IP 44. The electrical installation of the boiler consists of an electrical panel, mounted on the wall and distributes the necessary electrical power. It should be tight, and wiring must be in metal or plastic channels.

The main power cable should pass through the electrical panel and secured safely max 16A. The lighting system of the boiler must be on a separate circuit.

The manufacturer assumes no responsibility for damage caused by installation or wear materials, devices, etc. that may have been caused by inadequate grounding of system.

Connection of control panel

The control panel of the boiler operates with power 230V/50 Hz AC. Overvoltage or frequent fluctuations may damage the operation panel and devices.

All devices connected to the panel and checked and adjusted by (ventilator, motor, circulator). The circuit of the electric board is protected by circuit breaker 230 V / 2.5 A thermal fuse which activated at 95oC.

Pellet burner connection

The boiler has the ability to connect with any type pellet burner as long as the conditions met with the manufacturer of the burner (depth and diameter combustion chamber of the boiler). The connection instructions of the burner accompany each burner.

Mention that each burner must always be accompanied by the control panel and the sensor. The sensors connected to electronic panel, so placed the sensor into the sensor well without oil. The sensor well is located in the front upper part of the boiler.

7. GENERAL MAINTENANCE INSTRUCTIONS According the regulations DIN 4575 and 4756 the boiler needs periodic cleaning (if necessary even daily) by qualified personnel to ensure an economic and ecologic operation. The boiler needs a maintenance cleaning at the end of winter season. A special care needs to be taking with the smoke tubes cleaning, for avoiding deposits of lime and salt that may destroy them. The burnt residues must be removed. If  a  correct  maintenance  isn’t  done  properly  then  problems  would  arise  such  as:  

Maintenance operations: - Dismantling and cleaning of the burner. - Opening of the door. - Dismantling of the turbulators from the smoke tubes and cleaning them with a special brush. - Cleaning of the fire chamber with a special poker. - Cleaning the ash.

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- Checking the ceramic braids from the door and replacing them if damaged. - Checking the refractory material of the door. - Safety valves must be checked and replaced if damaged. - Checking of water supply. - Checking of the filter of the water supply. - Checking and cleaning the glass from the eye slit. PELLET COMPACT BIO-UNIT boiler can be equipped at request with different type of flanges, for operations with different type of burners: - Flange for pellet burner - Flange for diesel burner (request) - Flange for gas burner (request) Back fire Protection Systems. The feeding hose is made by a silicone material and on the intake pipe there is a safety thermostat that will cut the power and stop the pellet feeding and burning. When it is activated then after the thermostat cools down, you have to reset it by pressing the reset button so that the burner may start working again. But first you have to remove what caused the alarm. 8. TROUBLESHOOTING In  the  following  table  you’ll  find  the  actions  you  must  take  when  a  problem  should  arise. In the left column you may find the problem and in the right the solution for it.

Lack of electric power

(the water in the boiler is boiling)

In case the boiler produces also hot sanitary water open a tap of hot water to reduce the temperature in the boiler.

Lack of electric power at the control

panel.

Check if the connections between the control panel and the power source are correct and in good condition. Check if the safety thermostat for backfire did not

switched off. You have to shut off the power and to reset the thermostat manually, (danger for electric shock).

The  pump  doesn’t  start

Check if the connections between the pump, the sensor and the control panel are correct and in good condition. Check if the pump is not jammed; in this case switch

off the power, open the pump lid and unlock manually with a screwdriver. Check if the temperature probe in the boiler is well

positioned and if it is not rusted or deteriorated.

The warm water doesn’t  reach  the  

radiators

Check if the valves from the radiators are open and if

there is no air trapped in the installation (vent it off). Check the hydraulic connections to be correct. Check if the pump is working.

The boiler has smoke leaks

Check   if   the   chimney   doesn’t   have   excessive   soot

layers. Check the chimney tightness. Check if the chimney is in good condition.

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Check  the  pellets  quality  (they  shouldn’t  be  wet).  

Excessive layers of soot are on the fire

chamber walls

Check  the  pellets  quality  (they  shouldn’t  be  wet)   they  

may jam the feeding system. Do not use pellets made from different products such

as furniture industry made with glue or other kind of adhesives, because they produce a lot of soot and will obturated very quickly the smoke tubes increasing the cleaning frequency from once a week to 1-2 times a day. Clean the burner (the mobile tray) because ash has

accumulated inside of it and the air is allowed to enter the burner so there will be no fire.

Fire is weak and the pellets are below the

air holes in the burner

Increase the feeding time from the timer until the

pellets level in the burner reaches the superior level in the burner tray. Watch it for a time so that the level will not be too high

and unburnt pellets may result.

The eye slit glass gets excessively

dirty

Check if there is not too much soot on the smoke tubes,

which can cause a smoke stop in the fire chamber, stop the pellets feeding and clean the turbulators and the smoke tubes with the cleaning brush.

Hot sanitary water with insufficient

temperature

Increase the temperature of the pump thermostat and

then check at the tap. Check that the flame to be always lively. Eventual problems of hydraulic installation (check the

pump that pumps hot water into the sanitary water-accumulating tank).

Smoke inside the silo

There is a problem with the chimney: The turbulators were not cleaned and the smoke

tubes diameter is obturated. If the turbulators are damaged they need replacement; The elbows and the T pipes of the chimney need to be

cleaned.