DOMESTIC HOT WATER TANK

Transcription

1 Operating Manual UK DOMESTIC HOT WATER TANK SOLAR DOMESTIC HOT WATER TANK Accessories for heat pumps

2 Please read first This operating manual provides important information on handling the unit. It is an integral part of the product and must be stored so that it is accessible in the immediate vicinity of the unit. It must remain available throughout the entire service life of the unit. It must be handed over to subsequent owners or users of the unit. Read the operating manual before working on or operating the unit. This applies in particular to the chapter on safety. Always follow all instructions completely and without restrictions. It is possible that this operating manual may contain instructions that seem incomprehensible or unclear. In the event of any questions or if any details are unclear, contact the factory customer service department or the manufacturer's local partner. Since this operating manual was written for several different models of the unit, always comply with the parameters for the respective model. This operating manual is intended only for persons assigned to work on or with the unit. Treat all constituent parts confidentially. The information contained herein is protected by copyright. No part of this manual may be reproduced, transmitted, copied, stored in electronic data systems or translated into another language, either wholly or in part, without the express written permission of the manufacturer. Symbols The following symbols are used in the operating manual. They have the following meaning: Information for users. Information or instructions for qualified personnel. DANGER! Indicates a direct impending danger resulting in severe injuries or death. WARNING! Indicates a potentially dangerous situation that could result in serious injuries or death. CAUTION! Indicates a potentially dangerous situation that could result in medium or slight injuries. CAUTION! Indicates a potentially dangerous situation, which could result in property damage. NOTICE Emphasised information. Reference to other sections of the operating manual. Reference to other documents of the manufacturer. 2

3 Contents INFORMATION FOR USERS AND QUALIFIED PERSONNEL PLEASE READ FIRST...2 SYMBOLS...2 INTENDED USE...4 DISCLAIMER...4 SAFETY...4 CUSTOMER SERVICE...4 WARRANTY / GUARANTEE...4 MAINTENANCE OF THE UNIT...4 SCOPE OF DELIVERY...5 INFORMATION FOR QUALIFIED PERSONNEL INSTALLATION...5 Transport to installation location...6 Installation...6 INSTALLATION...6 Installation of the sensor for the heating and heat pump regulator...7 COMMISSIONING...7 INSULATION OF THE CONNECTIONS AND THE STORAGE TANK...7 DRAINING...7 TECHNICAL DATA WWS...8 WWS, SWWS...10 INSTALLATION PLANS DIMENSIONED DRAWINGS DIMENSIONED DRAWINGS...13 WWS DIMENSIONED DRAWINGS...14 WWS 202 / WWSB WWS 303, WWS 303.1, WWS WWS 806 WWS SWWS SWWS SWWS 806 SWWS CONNECTION INSTRUCTIONS Domestic hot water tank...20 Solar domestic hot water tank...21 EC DECLARATION OF CONFORMITY

4 Intended use The storage tank may be used only for the intended purpose. This means as a domestic hot water tank suitable for normal drinking water in conjunction with: Air/water heat pumps Brine/water heat pumps Water/water heat pumps WWS 121 is only allowed with WWB 20 CAUTION! The electrical conductivity of the domestic hot water must be > 100 µs/cm and must lie within the drinking water quality values. Safety The unit is safe to operate for its intended use. The construction and design of the unit conform to current state of the art standards, all relevant DIN/VDE regulations and all relevant safety regulations. Every person who performs work on the unit must have read and understood the operating manual prior to starting any work. This also applies if the respective person has already worked with such a unit or a similar unit or has been trained by the manufacturer. WARNING! Qualified trained personnel only (qualified heating, cooling system, refrigeration or refrigerant technician or electrician) may carry out work on the unit and its components. NOTE With solar domestic hot water tanks (SWWS) it is possible to connect solar systems. Disclaimer The manufacturer is not liable for losses resulting from any use of the unit which is not its intended use. The manufacturer's liability also expires: if work is carried out on the unit and its components contrary to the instructions in this operating manual. if work is improperly carried out on the unit and its components. if work is carried out on the unit which is not described in this operating manual, and this work has not been explicitly approved by the manufacturer in writing. if the unit or components in the unit have been altered, modified or removed without the explicit written consent of the manufacturer. Customer service For technical information please contact your local heating engineer or the manufacturer's local partner. "Customer service" overview in the heat pump operating manual. Warranty / Guarantee For warranty and guarantee conditions, please refer to the purchase documents. NOTE Please contact your dealer about all matters concerning warranties and guarantees. Maintenance of the unit The functional safety of the safety valve and the pressure reducer, if integrated in the system (to be provided on site) must be checked at regular intervals. We also recommend annual cleaning / servicing of the tank by a specialist firm. 4

5 CAUTION! Have the magnesium anode checked and if necessary renewed by the customer service for the first time after 2 years and then at appropriate intervals. Renew anode if protective current lower than 0.3 ma. After replacing the anode, re-install earthing cable between anode and storage tank jacket. NOTE Descale electric heating elements (if installed) annually, or at shorter intervals depending on the hardness of the water. Carry out a functional check at the same time. Disposal When withdrawing the old unit from service, comply with the relevant local laws, guidelines, directives andstandards concerning recovery, recycling and disposal. Scope of delivery Domestic hot water storage tank enamelled to DIN 4753 with smooth tube heat exchanger designed especially for heat pumps, integrated corrosion protection anode and 1 sensor for the heating and heat pump controller. Check the delivery for outwardly visible signs of damage Check to make sure that the delivery is complete. Report defects or incorrect deliveries immediately. Refer to the rating plate attached to the delivered storage tank to find out what type of storage tank it is. The abbreviations stand for the following: WWS = domestic hot water tank SWWS = solar domestic hot water tank (domestic hot water tank with ability to connect solar systems) Use of electric heating elements is only allowed up to 14 dh Typ WWS 121 WWS 202 WWS B 202 WWS 303 WWS EHZI 45 n.g. n.g. n.g. n.g. n.g. EHZI 45F n.g. Typ WWS WWS WWS WWS EHZI 45 n.g. EHZI 45F n.g n.g Typ SWWS SWWS SWWS SWWS EHZI 45 EHZI 45F n.g. n.g. : suitable combination, n.g. : not suitable For details of the quantity and positioning of the heating element sockets, refer to the dimensioned drawing of the respective tank. Installation Observe the following when performing all work: NOTE Always comply with the applicable local accident prevention regulations, statutory regulations, ordinances, guidelines and directives. CAUTION! The tank must be installed in a frostproof room, to prevent frost damage to the storage tank, pipe system and connections. NOTE Install the storage tank as close as possible to the heat generator, to keep the heat losses as low as possible. Ensure the shortest possible pipe lengths to the load. CAUTION! The floor or ground at the place of installation must be dry, firm and able to safely support the weight of the tank. ACCESSORIES CAUTION. Use only original accessories from the manufacturer of the unit. For the weight of the tank, please refer to the dimensioned drawing for the respective model. 5

6 TRANSPORT TO INSTALLATION LOCATION To avoid damage during transport, transport the storage tank (secured on the wooden pallet) to its final installation location using a lifting truck. WARNING! The unit can tip over when being removed from the wooden pallet and during transport with a hand truck or lift truck. This can result in personal injuries and damage. Take suitable precautions to prevent the tipping hazard. NOTE The storage tank is delivered fully insulated. Dispose of the transport and packaging materials properly and under ecological aspects. Plastic plugs for internal threads (Protect the threads and must be removed during installation. For connections which are not required, they must be replaced with pressure-resistant plugs): Plastic plug connecting piece Plastic caps for external threads (Protect the threads and must be removed during installation. For connections which are not required, they must be replaced with pressure-resistant caps): Plastic cap INSTALLATION When installing the tank, ensure sufficient clearance from walls and other objects to enable the connection pipes to be fitted. Installation NOTE. Always comply with the applicable local accident prevention regulations, statutory regulations, ordinances, guidelines and directives. connecting piece Plastic tube sleeves for conical external threads on drinking water connections of 3/4", 1" and 5/4" (Protect internally enamelled nozzles and may not be removed, but instead must remain in operation in the tank): Plastic sleeve CAUTION With our domestic-hot-water tanks, the following plastic protective components can be deployed on and in the connections: connecting piece NOTE. To level out pressure fluctuations or water hammer in the cold water network and to avoid unnecessary water loss, we recommend installation of a suitable expansion vessel with flow fittings. 6

7 CAUTION! Do not exceed the operating pressures specified on the rating plate. If necessary, install a pressure reducer. NOTE Close off any connections not required with appropriate plugs. NOTE In case of installation of the solar circuit with simultaneously installed electric heating element the maximum storage tank temperature must be set so that the safety temperature limiter (overheat cut-off device) does not trip. To this end, follow the separate operating instructions of the heating element and solar controller. For position of the connections, please refer to the dimensioned drawing for the respective model. CAUTION! Always integrate the tank in the system according to the connection instructions. Connection instructions from page 20. Use the safety valve according to the respective current standards, guidelines and directives and according to the maximum allowae operating pressures of the storage tank and components. The safety discharge of the safety valve must be discharged into the drain via a funnel-shaped odour trap according to the respective current standards, guidelines and directives! The discharge pipe connected to the safety valve must be installed with continuous downward gradient in a frost-free environment. Water can drip from the safety valve NOTE The function of the pressure relief device must be checked at regular intervals. INSTALLATION OF THE SENSOR FOR THE HEATING AND HEAT PUMP REGULATOR Depending on the unit model, you must install the sensor included in the scope of supply for the heating and heat pump controller on site in of the sensor pockets provided for this purpose. (In some models this sensor is installed in the factory). For item, see dimensioned drawing for respective model. Sensor connection: see heat pump operating manual. Domestic hot water temperature setting: s e e controller operating manual Commissioning Check whether the water supply is open and the tank is full Check the safety valve is working properly (and if applicable the pressure reducer) Test the safety valve (and if applicable the pressure reducer) for full functionality. Storage tanks enamelled to DIN 4753 are suitable for normal drinking water Insulation of the connections and the storage tank NOTE Insulate in accordance with applicable local standards and guidelines/directives. Check all hydraulic connections for leaks. Perform leak test Insulate all connections and pipes. NOTE The function of the pressure relief device must be checked at regular intervals. Draining The storage tank is drained via the drain valve (see page 18-19). Shut-off valves must remain closed during draining. The connection at the hot water outlet should be open to the atmosphere. 7

8 Technical Data WWS Manufacturer: ait-deutschland GmbH Tank name Type Domestic hot water tank ı Solar domestic hot water tank Hot water tank: Energy efficiency class according to ErP Standing loss according to ErP (at 65 C) W Tank volume according to ErP l Nominal capacity l Max. operating pressure (except SVGW) bar Test pressure bar Max. operating temperature C Corrosion protection according to Enamelled surface yes no Mg protective anode diameter x length mm x mm Heat exchanger heat pump: Exchanger area m² Pressure loss ı Flow bar ı l/h Exchanger capacity l Max. operating pressure bar Test pressure bar Max. operating temperature C Maximum heating output of the heat pump at heat source max.: kw Solar heat exchanger: Exchanger area m² Pressure loss ı Flow bar ı l/h Exchanger capacity l Max. operating pressure bar Test pressure bar Max. operating temperature C General unit data Dimensions: Diameter ı Height (see dimensioned drawing for rest) mm x mm Tilt dimension mm Domestic hot water connections Heating water connections Solar connections Net weight kg Cleaning flange Nominal size Recommended tightening torque for cleaning flange N.m Tests Heating element connections Heating element (optional) Maximum output of electric heating element kw Insulation: Rigid PU foam material yes no Insulation thickness mm as per DIN 4753 yes no Sheet metal jacket ı Foil jacket yes no 8

9 WWS 121 WWS 202 WWSB 202 WWS 303 WWS WWS 405 WWS 507 ı ı ı ı ı ı ı B B B C A C C DIN 4753 DIN 4753 DIN 4753 DIN 4753 DIN 4753 DIN 4753 DIN x x x x x x x ,45 2,28 2,15 3,50 3,50 5,00 7,00 0,017 ı 900 0,015 ı ,013 ı ,024 ı ,024 ı ,035 ı ,046 ı , I - - I - - I - - I - - I - - I - - I ı ı ı ı ı ı ı x G ¾" AG 2 x R 1" AG 2 x R 1" AG 2 x R 1¼" AG 2 x R 1¼" AG 2 x R 1¼" AG 2 x R 1¼" AG 2 x G 1" AG 2 x R 1" AG 2 x R 1" AG 2 x Rp 1¼" IG 2 x Rp 1¼" IG 2 x Rp 1¼" IG 2 x Rp 1¼" IG DN110 DN110 DN110 DN110 DN110 DN110 DN SVGW / SEV SVGW / SEV SVGW / SEV SVGW / SEV SVGW / SEV SVGW / SEV - Rp 1 ½" IG Rp 1 ½" IG Rp 1 ½" Rp 1 ½" Rp 1 ½" 2 x Rp 1 ½" - EHZI 45F EHZI 45F EHZI 45F EHZI 45F EHZI 45F EHZI 45F+EHZI45-1 x 4,5 1 x 4,5 1 x 4,5 1 x 4,5 1 x 4,5 2 x 4,5 + VIP ı ı ı ı ı ı ı 9

10 Technical Data WWS, SWWS Manufacturer: ait-deutschland GmbH Tank name Type Domestic hot water tank ı Solar domestic hot water tank Hot water tank: Energy efficiency class according to ErP Standing loss according to ErP (at 65 C) W Tank volume according to ErP l Nominal capacity l Max. operating pressure (except SVGW) bar Test pressure bar Max. operating temperature C Corrosion protection according to Enamelled surface yes no Mg protective anode diameter x length mm x mm Heat exchanger heat pump: Exchanger area m² Pressure loss ı Flow bar ı l/h Exchanger capacity l Max. operating pressure bar Test pressure bar Max. operating temperature C Maximum heating output of the heat pump at heat source max.: kw Solar heat exchanger: Exchanger area m² Pressure loss ı Flow bar ı l/h Exchanger capacity l Max. operating pressure bar Test pressure bar Max. operating temperature C General unit data Dimensions: Diameter ı Height (see dimensioned drawing for rest) mm x mm Tilt dimension mm Domestic hot water connections Heating water connections Solar connections Net weight kg Cleaning flange Nominal size Recommended tightening torque for cleaning flange N.m Tests Heating element connections Heating element (optional) Maximum output of electric heating element kw Insulation: Rigid PU foam material yes no Insulation thickness mm as per DIN 4753 yes no Sheet metal jacket ı Foil jacket yes no 10

11 WWS 806 WWS 1006 SWWS 404 SWWS 506 SWWS 806 SWWS 1008 ı ı ı ı ı ı C C DIN 4753 DIN 4753 DIN 4753 DIN 4753 DIN 4753 DIN x x520 33x x x x x x520 33x x520 5,60 5,60 3,50 4,30 4,60 5,60 0,085 ı ,085 ı ,024 ı ,025 ı ,073 ı ,086 ı , ,62 1,85 1,80 3,00 - I - - I - 0,011 ı ,013 ı ,033 ı ,051 ı , ı ı ı ı ı ı x Rp 2" IG 2 x Rp 2" IG 2 x R 1¼" AG 2 x R 1¼" AG 2 x Rp 2" IG 2 x Rp 2" IG 2 x Rp 1¼" IG 2 x Rp 1¼" IG 2 x Rp 1¼" IG 2 x Rp 1¼" IG 2 x Rp 1¼" IG 2 x Rp 1¼" IG x Rp 1¼" IG 2 x Rp 1¼" IG 2 x Rp 1¼" IG 2 x Rp 1¼" IG DN110 + DN 200 DN110 + DN 200 DN110 DN110 DN110 + DN 200 DN110 + DN SVGW / SEV SVGW / SEV SVGW / SEV SVGW / SEV SVGW / SEV SVGW / SEV Rp 1 ½" Rp 1 ½" 2 x Rp 1 ½" 2 x Rp 1 ½" Rp 1 ½" Rp 1 ½" EHZI 45 EHZI 45 EHZI 45F+EHZI45 EHZI 45F+EHZI45 EHZI 45 EHZI 45 1 x 4,5 1 x 4,5 2 x 4,5 2 x 4,5 1 x 4,5 1 x 4, ı ı ı ı ı ı 11

12 Installation plan WWS 121 > 740 > 200 > 150 FS > 1560 > 500 FS > 500 > 1170 OKF Legende: DE All dimensions in mm. We reserve the right to modify technical specifications without prior notice > 20 OKF FS Finished floor level Free space for service purposes C 1 MF >800 Legend: DE All dimensions in mm. We reserve the right to modify technical specifications without prior notice. C Top view MF Minimum area to ensure ability to operate and service 1 Storage tank >

13 Dimensioned drawings WWS 121 B A E C Legende: DE819422b A B C E Front view Side view from right Plan view Rear view Item Name Dim. Nominal volume Net weight 1 Hot water G3/4" AG 115 Liter 69 kg 2 Cold water G3/4" AG 3 Service area with protective anode (galvanic anode), cleaning flange, thermowell with sensor 4 Heating water inlet G1" AG 5 Circulation Rp3/4" IG 6 Heating water outlet G1" AG 7 Draining Rp1/2" IG 13

14 Dimensioned drawings WWS 202 / WWSB Legend: EN Dimensions in mm Item Designation Dim. 1 Cold water / draining R 1" AG 2 Heating water, return R 1" AG 3 Circulation R 3/4" AG 4 Heating water, flow R 1" AG 5 Hot water R 1" AG 6 Cleaning flange DN Sensor pocket with sensor Øi 7 8 Protective anode Ø26 Nominal volume Smooth tube heat exchanger Net weight Tilted height WWS Liter 2,28 m² 80 kg 1380 WWSB Liter 2,15 m² 80 kg

15 Dimensioned drawings WWS 303, WWS 303.1, WWS 507 Legend: All dimensions in mm. EN819291c Item Designation Dim. 1 Cold water / draining R 1 1/4" AG 2 Heating water, return R 1 1/4" IG 3 Circulation R 3/4" IG 4 Heating water, flow R 1 1/4" IG 5 Hot water R 1 1/4" AG 6 Sensor pocket with sensor Øi 7 7 Socket for electric heating element (in WWS 507 only) R 1 1/2" IG 8 Protective anode Ø33 9 Cleaning flange DN 110 H1 H2 H3 H4 H5 WWS WWS WWS Nominal volume Net weight Tilted height Smooth tube heat exchanger WWS litre 135 kg m² WWS litre 170 kg m² WWS litre 218 kg m² 15

16 WWS 806 WWS 1006 Dimensioned drawings 1 6 H6 H5 H4 H3 H H7 H8 H13 H9 H10 H11 H12 H c Item Name Dim. 1 Domestic hot water R 2" IG 2 Circulation R 1" IG 3 Heating water inlet R 1 1/4" IG 12 Ø Heating water outlet R 1 1/4" IG WWS 806 WWS Cold water c R 2" IG H Thermometer Technische Änderungen R 1/2" vorbehalten IG 7 Anode Alle Ø32x700 Maße in mm H R 1 1/4" IG Pos. Bezeichnung Dim. WWS 806 H3 WWS Anode Ø32x520 R 1 1/4" IG 1 Brauchwarmwasser R 2" IG H1 175 H Cleaning 2 flangezirkulation DN 200 R 1" IG H H Sensor, depth 3 max. Heizwasser Eintritt R 1/2" IG R 1 1/4" IG H Heizwasser Austritt R 1 1/4" IG H H Kaltwasser R 2" IG H Venting R 1 1/4 IG H Thermometer R 1/2" IG H Sensor sleeve, 7 Anode length Ø32x700 R 1/2" IG R 1 1/4" IG H7 350 H Anode Ø32x520 R 1 1/4" IG H8 690 H Reinigungsflansch DN 200 H Cleaning flange DN Fühler, Tiefe max. 200 R 1/2" IG H H Electric heating 11 Entlüftung R 1 1/2 IG R 1 1/4 IG H H element 12 Fühlerhülse, Länge 1000 R 1/2" IG H H Reinigungsflansch DN 110 H Elektroheizstab R 1 1/2 IG H Kippmaß Nominal Bare tube heat Net weight Glattrohr- ohne Tilt dimension without Nenninhalt Wärmetauscher Nettogewicht Isolierung capacity exchanger insulation WWS Liter 5,6 m² 290 kg 2020 WWS Liter 5,6 m² 290 kg WWS Liter 5,6 m² 340 kg 2220 WWS Liter 5,6 m² 340 kg 2220 Datum: Name: Maßbild Zeichnungs-N Gezeichnet: Markieton WWS 806, WWS 1006 Geprüft: Stenglein Seite: 1/1 Zust. Änderungen: Datum: Name: "-" ÄM 040/ Markieton Ø

17 SWWS 404 Dimensioned drawings Legend: All dimensions in mm. EN819305b Item Designation Dim. 1 Cold water / draining R 1 1/4" AG 2 Solar, return R 1 1/4" IG 3 Sensor pocket for solar sensor Ø i 14 4 Solar, flow R 1 1/4" IG 5 Heating water, return R 1 1/4" IG 6 Circulation R 3/4" IG 7 Heating water, flow R 1 1/4" IG 8 Hot water R 1 1/4" AG 9 Sensor pocket with sensor Øi 7 10 Protective anode Ø Socket for electric heating element R 1 1/2" IG 12 Cleaning flange DN 110 Nominal volume Net weight Tilted height 345 litre 185 kg 1720 Smooth tube heat exchanger Hot water circuit 3.50 m² Solar circuit 1.62 m² 17

18 Dimensioned drawings SWWS 506 Legend: All dimensions in mm. EN819065d Item Designation Dim. 1 Cold water / draining R 1 1/4" AG 2 Solar, return R 1 1/4" IG 3 Sensor pocket for solar sensor Ø i 14 4 Solar, flow R 1 1/4" IG 5 Heating water, return R 1 1/4" IG 6 Circulation R 3/4" IG 7 Heating water, flow R 1 1/4" IG 8 Hot water R 1 1/4" AG 9 Sensor pocket with sensor Øi 7 10 Protective anode Ø33 11 Socket for electric heating element R 1 1/2" IG 12 Cleaning flange DN 110 Nominal volume Net weight Tilted height 445 litre 210 kg 2100 Smooth tube heat exchanger Hot water circuit 4.30 m² Solar circuit 1.85 m² 18

19 SWWS 806 SWWS 1008 Dimensioned drawings Legend: EN819339b All dimensions in mm. Item Designation 1 Domestic hot water Dim. R 2" IG H1 SWWS SWWS Heating water inlet R 1 1/4" IG H Circulation R 1" IG H Solar inlet R 1 1/4" IG H Sensor, maximum depth 200 R 1/2" IG H Solar outlet R 1 1/4" IG H Cold water R 2" IG H Thermometer R 1/2" IG H Anode Ø32x700 R 1 1/4" IG H Cleaning flange DN 220 H Anode Ø32x520 R 1 1/4" IG H Ventilation R 1 1/4" IG H Sensor pocket, length 1000 R 1/2" IG H Heating water outlet R 1 1/4" IG H Weight SWWS kg 2000 SWWS kg 2160 Tilted height Reducing flange DN 220 to DN 120 enclosed in extra box 19

20 Domestic hot water tank Connection instructions Legend: Designation 1 Shut-off valve EN830032b 2 Pressure reducing valve 3 Test valve 4 Backflow preventer 5 Pressure gauge connection socket 6 Drain valve 7 Safety valve 8 Ventilation 9 Shut-off valve with draining 10 Check valve 11 Storage tank charge pump 12 Solar charge pump 13 Circulation pump 14 Cold water connection (to DIN 1985) WW KW Z HV HR SV SF SR AZ Hot water Cold water Circulation Heating, flow Heating, return Flow, brine circuit Solar sensor Return, brine circuit Circulation connection (only if absolutely necessary) 14 AZ NOTE. The positions of the individual connections illustrated here may differ from the positions of the connections on your tank. Therefore, for the actual positions of the connections, please refer to the dimensioned diagram for the respective tank type or always note and follow the allocation of the connections indicated by the stickers on the tank. 20

21 Connection instructions Solar domestic hot water tank Legend: Designation 1 Shut-off valve EN830032b 2 Pressure reducing valve 3 Test valve 4 Backflow preventer 5 Pressure gauge connection socket 6 Drain valve 7 Safety valve 8 Ventilation 9 Shut-off valve with draining 10 Check valve 11 Storage tank charge pump 12 Solar charge pump 13 Circulation pump 14 Cold water connection (to DIN 1985) WW KW Z HV HR SV SF SR AZ Hot water Cold water Circulation Heating, flow Heating, return Flow, brine circuit Solar sensor Return, brine circuit Circulation connection (only if absolutely necessary) 14 AZ NOTE. The positions of the individual connections illustrated here may differ from the positions of the connections on your tank. Therefore, for the actual positions of the connections, please refer to the dimensioned diagram for the respective tank type or rather always note and follow the allocation of the connections indicated by the stickers on the tank. 21

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23 EC Declaration of Conformity The undersigned confirms that the following designated device(s) as designed and marketed by us fulfill the standardized EC directives, the EC safety standards and the product-specific EC standards. In the event of modification of the device(s) without our approval, this declaration shall become invalid. Designation of the device(s) Unit model WWS 121 WWS 202 WWSB 202 WWS 303 WWS WWS 405 WWS 507 WWS 806 WWS 1006 SWWS 404 SWWS 506 SWWS 806 SWWS 1008 Number Unit model SBWS SBWS SBWS WPS WTPSK UPS TPS TPSK TPSK TPS TPS TPS MFS600S MFS 830S MFS 1000S Number EC Directives Standardized EN 2009/125/EG EN 12897: /30/EU Company: ait-deutschland GmbH Industrie Str Kasendorf Germany Place, date: Signature: Kasendorf, UK Jesper Stannow Head of Heating Development 23

24 Made by ait-deutschland GmbH