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Summary of Contents for Strebel Biotec 25
- Page 1 INSTRUCTION BOOKLET BIOTEC 25 AND BIOTEC 40 Version BIOTECHTS122013...
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Page 3: Hetas Stipulation
The manufacturer is not responsible for damages resulting from incorrect use. The operational parameters and adjust- ments can only be modified with the approval of Strebel ltd. The use of parameters and adjustments outside the approved range can cause damage or faults to the Boiler ,accessories and or the system. If the flue gas system is designed incorrectly or heavily polluted or if the boiler is not cleaned regularly or the water supply fails, the manufacturer is not liable for dam- age caused by such failures. -
Page 4: Clean Air Act Stipulation
STREBEL recommends pellets with a diameter of 6 to 8 mm and length of 10 to 30 mm to DIN ENplus A1 as referred to in EN 14961-2 A1... -
Page 5: Table Of Contents
INDEX Hetas Stipulation……………………………….………………………………………………….……………….3 Clean Air Act Stipulation.………………………………………………………………………………………….4 Safety information……………………………………………………………………...………..……………………………...……………...6 Technical data……….............................7 Technical information, Service Clearances……………………..………...…………………..……………………………..…..8 Construction and function......................... 9 Hydraulic Schemes……………......................10,11 &12 Boiler features............................13 Installation, Flue, Electrical……………………………………………………………………………………..……….….….14,15 & 16 Electrical &Connections……………………………………..…………………………………………………………………….…...16 &17 Commissioning.,………………………........................18 Thermal valve………………………………………………………………………………………………………………………………….……18 Operational phases………………………………………………..…………………………..…………………………………………..19 Boiler controller..........................20, 21 & 22 Control parameters ……………….....................23, 24 &... -
Page 6: Safety Information
SAFETY INFORMATION Hand Injury DANGER Carbon monoxide Special care must be taken when installing the boil- CO Alarms:-Building regulations require that er such that the requirements of the Health and whenever a new or replacement fixed solid Safety at Work Act are met. fuel or wood/biomass appliance is installed Handling in a dwelling a carbon monoxide alarm must... -
Page 7: Technical Data
A Draught stabiliser (by others) should be fitted to the flue to maintain the required flue draught. Data subject to change without notice. STREBEL recommends pellets with a diameter of 6 to 8 mm and length of 10 to 30 mm to DIN ENplus A1 as referred to in EN 14961-2 A1... -
Page 8: Technical Information, Service Clearances
Flue diameter to the required mini- Flow & Return Vent Drain mum Flue diameter of 150 mm (as previously stipulated) ½” ¾” 1” to comply with U.K. regulations ½” ¾” 1¼” Service & Fill Clearances 500mm 500mm 700mm PLAN STREBEL 700mm 700mm... -
Page 9: Construction And Function
CONSTRUCTION & FUNCTION Boiler Construction Legend: Function 1.) Combustion chamber The pellets are conveyed from the silo (3) to the burn- 2.) Heat exchanger er (1) via the pellet screw (4). 3.) Pellet silo The ignition system (16) automatically ignites the pel- 4.) Pellet screw lets during start-up or after an operating pause. -
Page 10: Hydraulic Schemes
The installer must fit a cold water supply (1/2“ connection) and comply fully with regulations in force THERMAL VALVE COLD WATER SUPPLY TO REGULATIONS Fill STREBEL DRAIN OFF COCK TEMPERATURE GAUGE PUMP AUTOMATIC 3 PORT MIXING VALVE for maintained return... - Page 11 Positions & THERMAL VALVE COLD WATER orientation below are for ease SEALED SYSTEM SUPPLY TO REGULATIONS of illustration Fill STREBEL DRAIN OFF COCK TEMPERATURE GAUGE PUMP AUTOMATIC 3 PORT MIXING VALVE for maintained return temperature PRESSURE GAUGE...
- Page 12 Positions & THERMAL VALVE COLD WATER orientation below are for ease SEALED SYSTEM SUPPLY TO REGULATIONS of illustration Fill STREBEL Maximum system resistance 22Kpa DRAIN OFF COCK TEMPERATURE GAUGE PUMP AUTOMATIC 3 PORT MIXING VALVE for maintained return...
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Page 13: Boiler Features
The Boiler can be sited in areas as described in this manual .The Boiler is a free standing Boiler and is not THE BIOTEC 25 & 40 BOILERS have been rec- suitable for siting in the living space such as a ommended as suitable for use in smoke control areas Lounge, Bedroom, Office etc.. - Page 14 15 Pa for the tions (designation letter W). In addition it should Biotec 40 and 12 pa for the Biotec 25 so as to be soot fire resistant and able to withstand the clear the products of combustion and prevent smoke corrosive effects of flue products generated by problems into the room.
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Page 15: Electrical Connections
INSTALLATION A single wall metal fluepipe is suitable for con- Regulations Approved Document J. An open win- necting the boiler to the chimney but is not suita- ble for use as the complete chimney. The chim- dow is not appropriate for this purpose. ney and connecting fluepipe must have a mini- mum diameter of 150 mm .Any bend in the Connection to the central heating system... -
Page 16: Installation, Flue, Electrical
INSTALLATION REMINDERS 1.) The boiler must be placed on a solid and stable non combustable floor which is able to take its weight. 2.) The installation must be carried out by qualified technicians and the electrical supply and installa- tion must be to regulations 3.) The boiler room must have a water supply 4) Servicing access should be fully considered FIRE BRICKS... - Page 17 TERMINAL CONNECTIONS Risk of electric shock HEAT STORE PROBE NTC 10K SENSOR NTC 10K AUGER 230V 50HZ 50W 230V 50HZ 41W IGNITION DEVICE 230V 50HZ 400W ROOM STAT OR ON OFF CONTROL BOILER RETURN LIFTING 230V 50HZ <400W DHW PRIMARY PUMP 230V 50HZ <400W HEATING PUMP 230V 50HZ <400W...
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Page 18: Commissioning
STREBEL or an experienced installer with the Fire Prevention of the Biotec approval of Strebel If the start-up is not carried out cor- rectly, the boiler and the system can be damaged or destroyed and be un-repairable. -
Page 19: Operational Phases
OPERATIONAL PHASES Operational phases Ignition phase If the flue gas temperature is above the temperature requir- If a room thermostat or on off control (if used ) switches off, it activates the setting that turns off the boiler and therefore ing auto ignition of the pellets, the controller knows that the it sends the boiler into a phase of after-run., the boiler will combustion chamber holds enough ember temperature to... -
Page 20: Boiler Controller
BOILER CONTROL Basic display 1. IGNITION Boiler controller Control panel The controller is used for regulating the pellet boiler opera- tion and should be set before commissioning The design of the control panel is shown below: 1. IGNITION Legend 1 Time 2 Boiler operation 3 DHW temperature 4 Fan activated... - Page 21 BOILER CONTROL Automatic operation Start and stop of the boiler To set the hours of operation for the automatic To start the boiler, activate the red main switch on the operation, press the button for about 2 right side of the boiler. After activation, the boiler con- seconds.
- Page 22 BOILER CONTROL Operation parameters 4.) POWER: The following parameters are relevant for boiler operation, pellet combustion, and flue gas temperature. The parame- The centre of the display shows the set power stage. ters are set by the technician before commissioning . The P1: Minimum output operation operation parameters are displayed by pressing the button in the basic display.
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Page 23: Control Parameters
CONTROL PARAMETERS Setting parameters Changes of parameters can be carried out by pressing the buttons together. Below is a list of parameters with the factory settings. The parameters can be changed by pressing or . The setting is confirmed with the enter button then the menu directs the user back to the basic display. - Page 24 CONTROL PARAMETERS Start on page 20 The parameters can be changed by pressing or . The setting is confirmed with the enter button then the menu directs the user back to the basic display.
- Page 25 CONTROL PARAMETERS Start on page 20 The parameters can be changed by pressing or . The setting is confirmed with the enter button then the menu directs the user back to the basic display. Temperature difference between heat store & boiler Heat store probe adjustment DHW temperature The asterisk is displayed when DHW is present...
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Page 26: Maintenance
MAINTENANCE Maintenance Intervals of maintenance and cleaning Maintenance work performed periodically is very important for a problem-free operation and the guarantee of a long life of the boiler and other system components. The maintenance period is affected by to the pellet quality and boiler usage . Soot and tar cling to the combustion chamber walls, so their cleaning by hand.is very important Before you start cleaning, turn off the boiler controller and deactivate the main switch. -
Page 27: Possible Faults
POSSIBLE FAULTS Possible faults 3) The refractory bricks in the combus- tion chamber are misaligned System dirty... -
Page 28: Fuel
PELLET INFORMATION Fuel Strebel Biotec boilers require fuels complying to ENplus-A1 Information kindly provided by Forever Fuels STREBEL recommends pellets with a diameter of 6 to 8 mm and length of 10 to 30 mm to DIN ENplus A1 as referred in EN 14961-2 A1 Pellets, made from by-products of wood and wood shav- ings, without additives. -
Page 29: Relocating And Boiler Disposal
12.2 The guarantee is valid, when 1.) Stop the boiler operation. - the boiler is installed, mounted and commissioned by STREBEL or a qualified installer, 2.) Wait until the pellets in the combustion chamber are burnt up and the boiler has cooled down. -
Page 30: Supplementary Operating Instructions For The Uk Market
USER MANUAL FOR INDEPENDENT PELLET FIRED BOILERS SUPPLEMENTARY OPERATING INSTRUCTIONS FOR THE UK MARKET TO BE READ IN CONJUNCTION WITH THOSE IN THE INSTRUCTION BOOKLET READ THE INSTRUCTION BOOK AND THESE INSTRUCTIONS CAREFULLY BEFORE USING THE BOILER WARNING NOTE Properly installed, operated and maintained this Boiler will not emit fumes into the dwelling. Occasional fumes from de ashing and re fuelling may occur. - Page 31 Under no circumstances should you attempt to burn any other type of fuel. Spare Parts For information on obtaining spare parts for the boiler, please contact Strebel directly. Details can be found at the back of the instruction booklet.
- Page 32 Strebel will not be liable for Typographical and printing errors, changes in construction and dimensions which are stated throughout this manual.
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