1 About this manual Content 1 About this manual 6 Hydraulic connection 1.1 Limitation of liability 6.1 Boiler connections 2 Safety information 7 Electrical connection 7.1 Power supply for the heating system 3 Technical requirements 7.2 Boiler control cabinet 3.1 Warranty, guarantee, liability 7.3 Terminal assignment 3.1.1 Technical requirements for warranty and gua- 7.4 Connections, functions...
1.1 Limitation of liability Recommendation: Conclude maintenance con- tract SOLARFOCUS GmbH accepts no liability for injury or – Have repairs carried out by qualified personnel material damage resulting from: only. Improper repairs can lead to risks for the –...
– Soften the fill-up water, or better: desalinate it. usage. – We are not liable for parts that were not produced by SOLARFOCUS. However, we are prepared to transfer our existing claims against the producer (relating to this defect) to the buyer.
– EN 303-5 - Part 5: Heating boilers for solid fuels, – The repair and/or warranty replacement shall be manually and automatically stoked, nominal heat carried out on site or in the SOLARFOCUS fac- output of up to 500 kW tory at our discretion.
3 Technical requirements Chimney 3.3 Installation room – The chimney must be resistant to moisture. Use Structural specifications fire brick or stainless steel. – The boiler may only be installed in a dry, frost-free – The chimney must conduct away the flue gases room;...
3 Technical requirements Execution of the flue gas pipe Install explosion flap – Run the flue gas pipe towards the chimney in a short and rising direction, with as few chan- Abb. 2-1: Explosion flap integrated into draught stabiliser ges of direction as possible. Before longer horizontal pipe sections –...
3 Technical requirements Calculation of the total permitted hardness of the Minimum space [in cm²] including 20% fill-up water surcharge for grids Boiler To use the table, the specific system volume for the Austria Germany Switzerland power system must be determined: Supply [In kW] Supply...
3 Technical requirements Electrical conductivity Pressure equalisation through expansion tank – The expansion tank prevents air from being The probability of corrosion usually decreases with decreasing electrical conductivity of the heating drawn in when the system cools down (issue: oxy- water.
4 Product information Hydraulic switch 4 Product information – A hydraulic switch separates the flows in the boi- ler and heating circuits. 4.1 Product description – If the heating system is operated without a buffer tank, a hydraulic switch must be installed bet- ween flow and return.
3 Technical requirements Wood chips Overtemperature reset (OTR) Use wood chips only in accordance with these spe- cifications: – Wood chips according to the EN ISO 17225- 4:2014 standard – Permissible classes A1, A2, B1 Not permissible: Class B2 – Sizes P16S and P31S –...
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3 Technical requirements Safety valve (to protect against excess pres- Temperature monitor in the fuel storage sure in the system) room (TM) – The safety valve is a safety device for protecting against overpressure in the water circuit of the heating system.
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3 Technical requirements Rotary valve If this device is not used, both connections must be sealed shut. False air will otherwise The rotary valve fulfils all normative requirements for be drawn into the burner, which will impair bur- the approved fuels regarding fire protection, burn- ner performance.
3 Technical requirements 4.4 Accessories External ash extraction system – Optional accessories – Ash extraction system with 240 litre standard bin, item 63791 – Ash extraction system with 600 litre tipping con- tainer, item 63793 – Further information is provided in the docu- mentation of the ash extraction system, DR-9969 Abb.
3 Technical requirements 4.6 Dimensions The following figures show the maxi L with mounted intermediate pellet store. Top view Abb. 2-9 Installation manual maximus L...
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3 Technical requirements Front Abb. 2-10 Side view Abb. 2-11 Installation manual maximus L...
3 Technical requirements 4.8 Technical specifications maxi Wood chips output [kW] Pellets output [kW] Boiler class (acc. to EN 305:5 2012) Dimensions Width [cm] Height inc. adjustable feet [cm] Depth with ID fan [cm] Burner transport dimension - width [cm] Heat exchanger transport dimension - [cm] width Heat exchanger transport dimension -...
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3 Technical requirements maxi Emissions according to test report: Wood chips Flue gas values (in relation to 13% O 18-IN-AT-UW-OÖ- 18-IN-AT-UW-OÖ- Interpolation accor- from test report:testing institute/test EX-205/3 EX-205/4 ding to EN 303-5 TÜV Austria TÜV Austria report No. CO full load [mg/m³] CO partial load [mg/m³]...
3 Technical requirements 4.9 Wood chipclassification according to EN ISO 17225-4 standard Property class > 21 Unit Woodland timber and plan- Complete trees without roots; tation wood as well as other Trunk wood; Origin, source natural timber; Woodland offcuts; Chemically untreated waste Chemically untreated waste timber timber Particle size P...
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3 Technical requirements Bulk density (kg/m³) Water content 8 to 18 18 to 25 25 to 35 (with moist mass being reference base) Bulk volume [kg/m³] 160 to 180 180 to 200 200 to 225 Conifer tree species Property class BD150 BD150 BD200...
5 Installation 5 Installation When the load of the burner is taken from the front, the front door must first be removed. When the load of the heat exchanger is taken 5.1 Transport from the rear, some of the mechanical com- ponents must first be removed (electric motor, Option 1: Transport with an industrial/fork-lift gearbox, drive chain,…).
5 Installation 5.3.1 Adjust spacing screws 5.3 Connecting heat exchanger and bur- ► The two lower holes serve to receive the spa- cing adjustment screws. This chapter describes how to make the necessary Abb. 2-19: Hole for screws connections between the heat exchanger and the bur- ner.
5 Installation ► Mount auger trough 5.3.2 Screw on flue gas pipe flange on heat exchanger. ► Connect the flange of the flue gas pipe with 6× hexagon screws and nuts. Abb. 2-23: Mount the auger channel ► Push metal ring and gasket onto auger Abb.
5 Installation ► Mount auger trough ► Mount geared motor on auger shaft 1. on burner with 4× hexagon ► Use key screws and washers. Enclose seal 2. and two securing rings Abb. 2-26: Mount the auger channel Abb. 2-29: Drive on right side of burner 5.3.4 Connect flue gas recirculation line ►...
5 Installation 5.3.5 Connect burner and heat exchanger Connect the feed grate motor ► Connect the pre-routed cable as shown in the ter- hydraulically minal area of the motor. ► Join and insulate both connections (pipe and insulation not included in scope of delivery) Abb.
5 Installation Install the feeder sensor 5.6 Install the hot air fan ► Fix the feeder sensor in the retaining tube ► Mount cover and 2. ► Connect to A1:X33, cable is pre-routed in ducts ► Install hot air fan in ignition pipe and secure 3 and 2 >...
5 Installation ► Fit the thermal overload protection valve 5.9 Installing thermal overload protection before (as seen from the direction of flow) The boiler maxi L has two safety heat the safety heat exchanger (i.e. no water pres- exchangers installed (one in the burner, one in sure building up in the heat exchanger).
5 Installation 5.12.1 Flue gas pipe: Hole for emission mea- 5.13 Mounting ash container surement ► Make the hole for the emission measurement according to the following images (recom- mendation according to standard). ► If these specifications cannot be implemented, then make the measuring point after a calming section, i.e.
5 Installation Latch in ash container 5.14 Mounting cladding on the boiler ► Press lever down to the stop. The ash con- ► Mount two covers on the back. tainer is thereby pressed against the auger chan- nel. Illustration of further boiler covers >...
7 Electrical connection Establish potential equalisation 7 Electrical connection DANGER - There is a risk of fatal electric shocks when working on electrical components of the system – Connect the two parts (burner and heat – Work may be performed only by a qualified exchanger) to the potential equalisation electrician.
7 Electrical connection 7.4.3 Connect ash extraction burner Connection X20x (rotary drive for primary air and secondary air) ► Connect automatic ash extraction motor A1:X16 Abb. 2-55 7.4.4 Connect rotary actuators The bus cables coming from the control cabinet (clam- ping area X10) of the heat exchanger include the fol- lowing components when fully installed: –...
ATTENTION – The connection is potential- free and has a maximum load of 5A. 7.4.10 External request (A1:X51) Input, i.e. the SOLARFOCUS boiler can be started by an external controller. CAUTION - The connection must be potential- free.
7 Electrical connection 7.5 Cable ducts on the boiler 7.6 Direct extraction system for wood chips: Connecting auger The motor of the direct extraction auger, the motor of the optional intermediate auger(s) and also the safety switch of the auger trough cover must be connected. The following sections (connecting…) apply to the direct extraction auger and the intermediate auger(s).
7 Electrical connection 7.6.1 Connecting auger motor Connection in motor terminal area ► Connect the cable as shown in the terminal area of the motor. Abb. 2-62: Connect the safety switch in the motor terminal area 7.7 Sensor resistance table Type KTY 81-110 PT100 PT1000 KTY 81-210 Abb.
7 Electrical connection 7.8 Electrical fusing 7.9 Connecting boiler control to the inter- DANGER - There is a risk of fatal electric manager- shocks when working on electrical To enable the Internet connection of the eco touch components of the system boiler control, connect the Ethernet port X2 –...
8 Installing the intermediate pellet store Tip: Mount angular compensator BEFORE 8 Installing the intermediate pellet assembly store As an alternative to joining the angular compensator when setting up the container, it is possible to Overview showing set-up situation of attached inter- assemble the entire angular compensator in advance mediate pellet store >...
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8 Installing the intermediate pellet store Fix retaining plates to the floor Connect pellet hose ► Set-up the container horizontally using the adjust- able feet. ► Attach 2× retaining plates to the floor with screws. DANGER - The retaining plates of the adjust- able feet must be securely screwed down as otherwise there is a risk of the container tip- ping over and presenting a risk of injury.
Once commissioning is complete, the minal area of the motor. completed commissioning log should be sent to SOLARFOCUS. If this does not happen, then for guarantee and warranty claims of any kind the date of shipment from the manufacturer to the dealer (according to the delivery note and invoice) will be used.
11 Annex 11.2 Boiler power element, circuit boards Boiler power element (A1) Abb. 2-74 Power element_A2 Power element_A3 (or optional power element_A4) Abb. 2-75 Abb. 2-76 Power element_A3 = direct extraction 1 (RA1) Power element_A4 = direct extraction 2 (RA2) – Access to the power element >...
11 Annex Heat exchanger: Top side 11.3 Electrical components: Overview The components listed below are factory-installed and -connected, i.e. no assembly/installation work is required on site. The information given here is intended to contribute to a better understanding or facilitate the locating of components in the event that they need to be repla- ced.
– Route hose as straight as possible. To avoid sag- for suction heads (Art. 68190). ging, use SOLARFOCUS product support shell made of zinc plated sheet steel. – Do not kink the hose (observe bending radius of >...
11 Annex Mole suction system 11.5 Delivery systems (pellets, wood chips) Pellets Suction heads and diverter for suction heads manual or automatic Abb. 2-84 1 Container auger motor > 42 (=direct extraction motor 1), connection A3:X2 2 Connect mole to A1:X14, the parameter in the manufacturer's manual is called Boiler request (mole is unlike direct extraction motor 2) Abb.
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11 Annex Direct extraction with articulated arm agitator Abb. 2-86 1 Direct extraction auger motor (=direct extrac- tion motor 1), connection A3:X2 2 Bunker filling auger motor (=direct extraction motor 2), connection A4:X2 Direct extraction by downpipe Abb. 2-87 1 Direct extraction auger motor (=direct extrac- tion motor 1), connection A3:X2 Installation manual maximus L...
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