Instructions for Installation, Servicing and Use Unvented Hot Water Storage Cylinders Country of destination: GB/IE TABLE OF CONTENTS 1. THE BENCHMARK SCHEME Page 2 2. 2.1 2,2 2.3 GENERAL INFORMATION Guarantee How the Appliance Works Delivery Page 3 Page 3 Page 3 Page 4 3. 3.1 3.2 3.3 3.4 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 INSTALLATION Water Regulations Building Regulations General Guidance Cold Water Supply Siting and Fixing Overall Dimensions Connection of Mains Supply Cold Water Combination Valve Connection to Services Secondary Return Discharge Pipework Electrical Connection Electrical Diagrams Page 5 Page 5 Page 5 Page 5 Page 5 Page 6 Page 7 Page 9 Page 12 Page 12 Page 13 Page 14 Page 17 Page 19 4. COMMISSIONING Page 24 5. 5.1 5.2 5.3 5.4 5.5 5.6 MAINTENANCE ProTech Anti-corrosion System Thermal Cut-out(s) Immersion Heater(s) Unvented Controls Thermostats Maintenance Page 26 Page 26 Page 26 Page 26 Page 26 Page 27 Page 27 6. FAULT FINDING Page 29 7. TECHNICAL INFORMATION Page 30 8. BENCHMARK COMMISSIONING CHECKLIST Page 32 9. BENCHMARK SERVICE RECORD Page 33 1. The Benchmark Scheme Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers are provided with the correct equipment for their needs, that is installed, commissioned and serviced in accordance with the manufacturer’s instructions by competent persons and that it meets the requirements of the appropriate Building Regulations. The Benchmark Checklist can be used to demonstrate compliance with Building Regulations and should be provided to the customer for future reference. Installers are required to carry out installation, commissioning and servicing work in accordance with the Benchmark Code of Practice which is available from the Heatinmg and Hotwater Industry Council who manage and promote the Scheme. Visit www.centralheating.co.uk for more information. 2 1.1 2. HWA Charter Statement The HWA Charter Statement requires that all members adhere to the following: · To supply fit for purpose products clearly and honestly described · To supply products that meet or exceed appropriate standards and building and water regulations · To provide pre and post technical support · To provide clear and concise warranty details to customers GENERAL INFORMATION This manual is an integral and essential part of the product. It should be kept with the appliance so that it can be consulted by the user and/or authorised personnel. The manual is to be left with the end user. Please read carefully the instructions and notices about the appliance contained in this manual, as they provide important information regarding the safe installation, use and maintenance of the cylinder. Failure to do so may invalidate the guarantee. When installing and servicing the cylinder, Ariston Thermo UK Ltd recommend the use of protective clothing i.e. gloves. 2.1 GuArAntee The Ariston range of unvented cylinders come with varying guarantees depending on the model of cylinder. The guarantee periods offered with each model of cylinder are as follows: ST Range - 10 Years tank 2 Years electrical components Classico HE Range - 5 Years tank 2 Years electrical components Aquabravo Range - 25 Years tank 2 Years electrical components Note: The guarantee is subject to the cylinder being installed and serviced annually by a competent person as per the maintenance instructions in Section 5.6 of this manual. For units with the ProTech anti-corrosion device it must be ensured that this is connected and operating correctly (green LED only). 2.2 How tHe AppliAnce works The immersion heater(s) are controlled through a thermostat which senses the water temperature. The operating temperature can be pre-set by adjusting the spindle in the head of the thermostat. In addition to the thermostat there is a thermal cut-out incorporated if the thermostat fails and the water temperature rises too high. Once the cut-out operates it can only be re-set manually after the fault has been rectified. Indirect models have dual thermal controls. In addition to the above there is a separate cylinder thermostat and thermal cut-out for controlling each indirect circuit. Again the thermal cut-out operates if the cylinder thermostat fails, by disconnecting the live feed (call for hot water) from the programmer. ITI/ITD/ITSI models have a stainless steel tank and therefore need no protection against corrosion. STD/STI models have an enamelled steel tank and therefore are supplied with magnesium anodes to prevent corrosion of the cylinder tank. It is imperative that the top anode is checked during the annual service and if found to be corroded both anodes should be replaced. Failure to do so will invalidate the warranty of the tank. 3 The Wall-hung (ST) units utilise the ProTech anti-corrosion system (electronic anode). This prevents an electrolytic reaction between the tank and dissimilar metals. The ProTech system shows if it is operating correctly (green LED) or incorrectly (red LED). In the event that the red LED lights (even with the green light still showing), it is imperative that a service agent is contacted immediately as continued use with the ProTech system in this state could invalidate the warranty on the tank. Note: Do not use a water softner on products with the ProTech anti-corrosion system. The factory fitted temperature & pressure relief valve at the top of the cylinder is a safety device to back-up the thermostat(s) and thermal cutout(s). It works by sensing an excess in water temperature or pressure and releasing the hot water into a discharge tundish and drain. The cylinder will only work in the vertical position. The inlet pipe needs to deliver cold water to the bottom of the tank. When water is heated it expands. To accommodate this increase in volume an expansion vessel is provided. A cold water combination valve is also provided in two pieces, loose jointed for ease of installation. These comprise a combined line strainer/pressure reducing valve and core non-return valve/expansion relief valve. 2.3 Delivery The Ariston range of Unvented Cylinders are available in the following options: The Wall-hung ProTech cylinder (100 litre model), which is supplied as follows; One box containing; 1) The cylinder with factory fitted temperature & pressure relief valve, immersion heater and thermostat with thermal cut-out. One box containing; 1) Unvented control pack (expansion vessel, 2 piece cold water combination valve and tundish), instructions for installation, servicing and use including the Benchmark Commissioning Checklist. The STD and STI floor standing range (125, 150, 200, 300 and 500 litre models) and the ITD and ITI floor standing range (80*, 130, 150, 215, 255* and 305 litre models) are supplied as follows; One box containing; 1) The cylinder with factory fitted temperature & pressure relief valve, immersion heater(s) and thermostat(s) with thermal cut-out(s), cylinder thermostat with thermal cut-out (indirect only). 2) Unvented control pack (expansion vessel, 2 piece cold water combination valve and tundish), motorised valve (indirect only, non-high temperature), expansion vessel mounting bracket, instructions for installation, servicing and use including the Benchmark Commissioning Checklist. The ITSI twin coil floor standing range (215, 255 and 305 litre models) are supplied with the following; One box containing; 1) The Cylinder with factory fitted temperature & pressure relief valve, immersion heater and thermostat with thermal cut-out, cylinder thermostats with thermal cut-outs. 2) Unvented control pack (expansion vessel, 2 piece cold water combination valve and tundish), 1 x motorised valves (non-high temperature), expansion vessel mounting bracket, instructions for installation, servicing and use including the Benchmark Commissioning Checklist. * ITI only 4 3. INSTALLATION The appliance should be installed in accordance with the Domestic Heating Compliance Guide. 3.1 wAter reGulAtions These regulations (byelaws in Scotland) ensure a good supply of wholesome water, and that only approved materials, pipes and fittings are used to convey water. 3.2 BuilDinG reGulAtions These are a statutory document and take priority over all other regulations and recommendations. The installation of an unvented hot water storage cylinder is classified as a “Controlled Service” and Regulation G3 applies (England & Wales. For Scotland, NI and ROI, local Building Regulations apply). To meet the requirements of the Regulation, installation of an unvented system should be undertaken by a “competent installer”. All installations of unvented hot water storage systems having a capacity of more than 15 litres should be notified to the relevant Local Authority by means of building notice or by the submission of full plans. It is important to note that it is a criminal offense to install an unvented hot water storage system without notifying the Local Authority. The installation of the unvented cylinder and hot water system must comply with BS 6700 and the HSE Legionella Code of Practice. 3.3 GenerAl GuiDAnce Current guidance notes do not cover the connection of a solar thermal circuit to an unvented storage vessel (cylinder). However, if guidance is sought for compliance with current regulations the fundamental principle is to provide a failsafe means of shutting off the solar input to the heat exchanger if the cylinder temperature should rise above the set temperature of the cylinder’s energy cut out. (See Note 1). As with all unvented hot water systems, notification of intention to install should be given to your local building control. Option A. A non self resetting mechanical shut-off should be installed on the solar primary flow to the cylinder. The mechanical shut-off should be suitable for use with a solar primary circuit (i.e. high temperature and glycol resistant). The mechanical shut-off should be integrated electrically with the cylinder energy cut out/s and if necessary the solar circuit temperature control, please refer to the solar controller manufacturer for further information. Option B. Where the solar controller and hydraulic system demonstrate that by no lesser means the requirement in Option A is satisfied by other means; certification by an approvals body is required to demonstrate that in the event of the stored water going over temperature, the heat input to the cylinder is isolated by physical means and is non self resetting. These systems should be clearly identified with reference to the approvals body. (See Note 2) Note 1 :Whilst most solar cylinders use a coil type heat exchanger other options such as external plate to plate devices , external annulars or ‘tank in tank’ systems may be used but the same control options always apply. Note 2 :Current approved bodies include the British Board of Agrement (BBA) , WRc-NSF Limited, or KIWA 3.4 colD wAter supply The strainer prevents any debris entering the other controls. The pressure reducer ensures the correct operation of the expansion vessel, and prevents any damage to the control valves through too great a pressure. The non-return valve ensures the water expansion is forced into the expansion vessel and prevents contamination of the mains cold water supply. The expansion relief valve will discharge expanded water to the discharge tundish if the expansion vessel fails. It is important to ensure that the cold water main is capable of supplying the increased demand which will be imposed on it. Hot and cold water are both drawn off the same source of supply. Remember, there will not be a storage tank to help compensate for variations in the demand on the system. 5 3.6 sitinG AnD FixinG A minimum dynamic pressure of 1.5 bar or 20 litres per minute is required for satisfactory operation. 85% of UK dwellings have a mains pressure above 2.0 bar. note: tHe MAins wAter supply Must not exceeD 16 BAr. The cylinder should be left packed until it is time to install. When unpacking the appliance follow the guidelines within the packaging and take care not to damage the temperature and pressure relief valve, thermostats and immersion heaters. The cylinder may be installed in any convenient position. As it is connected to the mains cold water supply. Consideration must be given to allow ease of access and space for removal of components for maintenance purposes. Additionally, do not install the unit in premises which may be subject to freezing. Ensure that the floor load bearing strength is adequate to take the weight of the cylinder when full of water (see tABle 1). e.g. Do not install the cylinder on floors made of chipboard or other flooring where the mechanical strength is compromised when damp. The ST100 ProTech models are wall mounted. All other models are free standing. All units must be installed in the verticAl position. For maintenance purposes leave at least 500 mm free space in front of the unit, for access. note: On Indirect models, ensure a balancing valve is fitted on the return pipework from the cylinder coil. iMportAnt: In the event that the installation of this cylinder wil require a third sensor to be fitted (i.e. Solar) please also refer to Section 3.3 General Guidance options A and B (page 5) of this manual. For further technical advice, please contact the Ariston Technical Advice Line on 0870 241 8180. 6 Storage Classico - STI 125 HE-2 Classico - STI 150 HE-2 Classico - STI 210 HE-2 Classico - STI 300 HE-2 Classico - STI 500 HE-2 inDirect rAnGe Classico - STD 125 HE-2 Classico - STD 150 HE-2 Classico - STD 210 HE-2 Classico - STD 300 HE-2 Classico - STD 500 HE-2 Floor Standing 125 l 150 l 200 l 300 l 500 l 125 l 150 l 200 l 300 l 500 l 3/4” Male 3/4” Male 3/4” Male 1” Male 1" Male 3/4” Male 3/4” Male 3/4” Male 1" Male 1” Male 3/4” 0.35 0.5 0.5 0.5 1.3 - - - 350 450 650 880 - 550 A 370 370 370 370 370 370 370 370 370 370 175 B 1045 1205 1520 1821 1947 1045 1205 1520 1821 1947 700 C 280 360 360 360 700 - 230 D - 790 948 1264 1552 1656 575 E Dimensions in mm 555 555 555 655 550 555 555 555 655 751 560 F G - H - I - 590 590 590 690 - 590 590 590 690 - 250 250 250 250 250 - - - - - - J Weight When Full Kg tABle 1 Classico HE STI 500-2 168 190 245 425 582 168 190 245 425 582 129 100 l Coil Surface m2 Classico HE STD 500-2 ST 100 ProTech Inlet Outlet Units Pipe Size Classico HE STI-2 125-150-210-300 141 Capacity Classico HE STD-2 125-150-210-300 Direct rAnGe Wall-hung Model ST ProTech100 3.7 overAll DiMensions 7 8 twin coil rAnGe AQUABRAVO - ITI 80 AQUABRAVO - ITI 130 AQUABRAVO - ITI 150 AQUABRAVO - ITI 215 AQUABRAVO - ITI 255 AQUABRAVO - ITI 305 inDirect rAnGe AQUABRAVO - ITD 130 AQUABRAVO - ITD 150 AQUABRAVO - ITD 215 AQUABRAVO - ITD 305 Direct rAnGe AQUABRAVO - ITSI 215 (top/bottom) AQUABRAVO - ITSI 255 (top/bottom) AQUABRAVO - ITSI 305 (top/bottom) Kg Model Capacity 215l 255l 305l 80l 105l 150l 215l 255l 305l 130 l 150 l 215 l 305 l Storage Ø 22mm Ø 22mm Ø 22mm Ø 22mm Ø 22mm Ø 22mm Ø 22mm Ø 22mm Ø 22mm Ø 22mm Ø 22mm Ø 22mm Ø 22mm Inlet Outlet Units Pipe Size Surface AQUABRAVO ITD 130-155-215-255-305 0.75 / 1.1 0.75 / 1.1 0.75 / 1.1 0.54 0.54 0.54 0.75 0.75 0.75 - Coil 1485 1753 2029 - - A 213 213 213 - - B 268 268 268 711 1003 1131 1530 1792 2074 1003 1131 1530 2074 C 580 580 580 689 981 1109 1508 1770 2052 263 263 263 476 768 896 1295 1563 1839 768 896 1295 1839 E Dimensions in mm 981 1109 1508 2052 D AQUABRAVO ITI 80-130-150-215-255-305 346 348 348 109 193 193 263 263 263 - F 711 711 711 125 149 149 172 172 172 - G 531 531 531 - 353 431 802 1307 H 1116 1029 1167 - - I AQUABRAVO ITSI 215-255-305 270 315 370 99 152 176 252 303 362 154 181 253 360 Kg Weight When Full tABle 1 3.8 connection oF MAins wAter supply For floor standing models: On the front of the unit there is a label to identify the connection ports. Please check this before making any connection to the unit. For units up to 300 litres it is recommended that all mains cold water supply pipe work is a minimum of 22mm. For 500 litre models the supply should be 28mm. An isolating valve should be installed between the cold water supply and the cylinder for servicing. ALL PIPEWORK MUST BE FLUSHED TO AVOID DAMAGE TO THE CONTROL VALVES. Please refer to FiGs. 3.1 - 3.7 for a suggested installation layout. Draining taps must be located in acessible postions to permit the draining of the whole cylinder. The taps must be a minimal size of at least 15mm nominal size (preferably 22mm), and manufactured in accordance with BS 2879:1980. When installing the expansion vessel Ariston recommend it be connected directly to the combination valve (see Figs 3.9 - 3.10). iMportAnt note:When installing the expansion vessel, Do not install the expansion vessel vertically as air can become trapped in the expansion vessel resulting in noise. Do not use a flexible hose to connect the expansion vessel. This must be hard piped in order to avoid vibration. See below for acceptable installation practices. ✘ ✔ ✘ ✔ 9 st protecH 100 stD 125-150-210-300 Direct FiG. 3.1 sti 125-150-210-300 inDirect FiG. 3.3 10 FiG. 3.2 stD 500 Direct NOTE: FLOW AND RETURN PIPES MAY BE CONNECTED IN REVERSE TO THAT SHOWN IN THE DIAGRAMS FOR INDIRECT CYLINDERS. FiG. 3.4 itD 130-150-215-305 Direct iti 80-130-150-215-255-305 inDirect FiG. 3.5 sti 500 inDirect FiG. 3.7 FiG. 3.6 itsi 215-255-305 twin coil NOTE: FLOW AND RETURN PIPES MAY BE CONNECTED IN REVERSE TO THAT SHOWN IN THE DIAGRAMS FOR INDIRECT CYLINDERS. FiG. 3.8 11 3.9 colD wAter coMBinAtion vAlve The cold water combination valve may be fitted in close proximity to the cylinder, or alternatively, it may be separated to allow the pressure reducing valve where the mains supply enters the property allowing for balanced cold water throughout the whole property whilst the 6 bar safety valve is fitted in close proximity to the cylinder. A balancing port is supplied on the 22mm and 28mm valves allowing balanced cold water supply to the rest of the building giving constant results for mixer and shower valves. If the facility is not needed a plug is supplied. Refer to FiG. 3.9 and FiG. 3.10 note! tHere sHoulD Be no otHer vAlves FitteD Between tHe cylinDer AnD tHe expAnsion vAlve. EXPANSION RELIEF VALVE (SET AT 6 BAR) SERVICEABLE 3/4” PRESSURE REDUCING CARTRIDGE AND LINE STRAINER (SET AT 3.5 BAR) 15mm EXPANSION RELIEF OUTLET TO TUNDISH 22mm COLD MAINS IN 22mm TO CYLINDER 3/4” B.S.P. CONNECTION FOR EXPANSION VESSEL 22mm BALANCED COLD WATER TAKE OFF WITH NON-RETURN VALVE FiG. 3.9 12 For ST 100, Aquabravo ITD, ITI, ITSI, Classico HE STD and STI models up to 300l SERVICEABLE 1” PRESSURE REDUCING CARTRIDGE AND LINE STRAINER (SET AT 3.5 BAR) EXPANSION RELIEF VALVE (SET AT 6 BAR) 28mm COLD MAINS IN 28mm TO CYLINDER 3/4” B.S.P. CONNECTION FOR EXPANSION VESSEL FiG. 3.10 1” BALANCED COLD WATER TAKE OFF WITH NON-RETURN VALVE For Classico HE STD and STI 500 models 3.10 connection to services It is recommended that a 22mm pipe run should supply the outlets throughout the building, especially to baths and showers. Short runs of 15mm pipe may be used to connect basins and sinks. 3.11 seconDAry return On selected floor-standing models a secondary return may be fitted (consult the drawings on pages 10 and 11 and the label on the face of the unit for presence/location). A non-return valve (not supplied) must be fitted to prevent back flow and a bronze pump will be needed in conjunction with a pipe thermostat and timer to circulate the hot water (both not supplied). Where a secondary return is not included on the cylinder, it is possible to utilise the mains inlet (see diagram below). note: an extra expansion vessel may be required where the additional volume of the secondary return exceeds the capacity of the expansion vessel supplied. 13 3.12 DiscHArGe pipework note! tHe sAFety relieF vAlves Must not Be useD For Any otHer purpose 1) Discharge pipes from the temperature & pressure relief and expansion relief valve may be joined together. 2) The tundish must be vertical and fitted within 600mm of the temperature & pressure relief valve and must be located with the cylinder but away from any electrical devices. The tundish must also be in a position visible to the occupants, and positioned away from any electrical devices. The discharge pipe from the tundish should of metal and terminate in a safe place where there is no risk to persons in the vicinity of the discharge. 3) The pipe diameter must be at least one pipe size larger than the nominal outlet size of the safety device unless it's total equivalent hydraulic resistance exceeds that of a straight pipe 9m long. i.e. Discharge pipes between 9m and 18m equivalent resistance length should be at least 2 sizes larger than the nominal outlet size of the safety device. Between 18m and 27m at least 3 larger, and so on. Bends must be taken into account in calculating the flow resistance. See FiG. 3.11 and tABle 2. 4) The discharge pipe must have a vertical section of pipe at least 300mm in length below the tundish, before any elbows or bends in the pipework. 5) The discharge pipe must be installed with a continuous fall and should be at least one pipe diameter clear of the wall where it terminates. 6) The discharge should be visible at both the tundish and the final point of discharge, but where this is not possible or practically difficult; there should be clear visibility at one or other of these locations. Examples of acceptance are: i) Ideally below a fixed grating and above the water seal in a trapped gully. ii) Downward discharges at a low level; i.e. up to 100mm above external surfaces such as car parks, hard standings, grassed areas etc. These are acceptable providing that where children may play or otherwise come into contact with discharges, a wire cage or similar guard is positioned to prevent contact, whilst maintaining visibility. iii) Discharges at high level; Onto a roof capable of withstanding high temperature discharges of water 3m from any plastic guttering systems that would collect such a discharge (tundish visible). iv) Where a single pipe serves a number of discharges, such as in blocks of flats, i.e. into a metal hopper and metal down pipe with the end of the discharge pipe clearly visible (tundish visible or not). the number served should be limited to not more than 6 systems so that any installation can be traced reasonably easily. The single common discharge pipe should be at least one pipe size large than the largest individual discharge pipe to be connected. If unvented hot water storage systems are installed where discharges from safety devices may not be apparent i.e. in dwellings occupied by the blind, infirm or disabled people, consideration should be given to the installation of an electronically operated device to warn when discharge takes place. Note: The discharge will consist of scalding water and steam. Asphalt, roofing felt and non-metallic rainwater goods may be damaged by such discharges. 14 Temperature & pressure relief valve Metal discharge pipe (D1) from temperature & pressure relief valve. to tundish. Tundish 600mm Max. 300mm Min. Discharge below fixed grating. (see page 10 for alternative points of discharge). Metal discharge pipe (D2) from tundish with continuous fall. See Table 2 and worked example. Fixed grating FiG. 3.11 Trapped gulley tABle 2. Sizing of copper discharge pipe “D2” for common temperature valve outlet sizes. Valve outlet size Minimum size of discharge pipe D1* Minimum size of discharge pipe D2* from tundish Maximum resistance allowed, expressed as a length of pipe (i.e. no elbow or bends) Resistance created by each elbow or bend G 1/2 15mm G 3/4 22mm G1 28mm 22mm 28mm 35mm 28mm 35mm 42mm 35mm 42mm 54mm Up to 9m Up to 18m Up to 27m Up to 9m Up to 18m Up to 27m Up to 9m Up to 18m Up to 27m 0.8m 1.0m 1.4m 1.0m 1.4m 1.7m 1.4m 1.7m 2.3m 15 workeD exAMple The example below is for a G1⁄2 temperature & pressure relief valve with a discharge pipe (D2) having 4 no. elbows and length of 7m from the tundish to the point of discharge. From tABle 2; Maximum resistance allowed for a straight length of 22mm copper discharge pipe (D2) from G1⁄2 temperature & pressure valve is 9m. Subtract the resistance for 4 no. 22mm elbows at 0.8m each = 3.2m. Therefore the maximum permitted length equates to: 5.8m. As 5.8m is less than the actual length of 7m therefore calculate the next largest size. Maximum resistance allowed for a straight length of 28mm pipe (D2) from G1⁄2 temperature & pressure valve equates to: 18m. Subtract the resistance for 4 no. 28mm elbow at 1.0m each = 4m. Therefore the maximum permitted length equates to: 14m As the actual length is 7m, a 28mm (D2) copper pipe will be satisfactory. wArninGs The outlet from the temperature & pressure relief valve must not be used for any other purpose. This also applies to the expansion relief valve. No other valve is to be fitted between the cold water combination valve and the cylinder. The temperature & pressure relief valve must not be removed in any circumstances. Any of the above will totally invalidate the guarantee. Discharge pipe D2 (FIG. 3.11) must be in metal and must not be discharged into a soil stack made of plastic or any other non-metallic material incapable of withstanding discharge water above 95ºC. 16 3.13 electricAl connection The electrical installation must be in accordance with the current I.E.E. wiring regulations. protecH electronic Anti-corrosion systeM (st 100 models only) i MportAnt : The ProTech anti-corrosion system MUST be permanently connected to a fused non-switched 240V electricity supply. The ProTech system, an exclusive solution, is an electronic anti-corrosion protection system which ensures maximum longevity of the appliance. The electronic circuit creates a difference in potential between the hot water tank and the titanium electrode, thereby guaranteeing optimum protection of the tank and preventing corrosion. Note: Do not use a water softner on products with the ProTech anticorrosion system. To ensure the proper operation of the protection system, it Must Be perMAnently connecteD to A FuseD non-switcHeD 240v, 3A electricity supply even in the event of shut-down of the system. To prevent risk to the appliance’s lifespan when disconnecting the protection system for an extended period of time, it is necessary to drain the appliance beforehand. In addition to the 240V network, the electronic circuit is also connected to the tank, which is to be protected, and to the titanium protection electrode, inForMAtion For tHe enD user Proper operation of the protection system is shown by a continuous green L.E.D, indicating that the circuits terminals are being supplied with electricity. In the event of failure, a red LED indicates that there is a short-circuit between the electrode and the cylinder tank, that one of the leads (tank or electrode) is disconnected or that there is no water in the cylinder. Your appliance is thus properly protected when the green L.E.D. is illuminated and the red LED is off. Should this not be the case or should the green and red LED light simultaneously, please contact your installer. Direct systeMs A mains supply of 240V, 3kW (13 amps) is required. Heat resistant cable, round 3 or 4 core 2.5mm2 (to BS6141 table 8) must be used to connect the electrical supply through the Economy 7 time control switch using either system ‘A’ or ‘B’ as illustrated in Fig. 3.12. 17 systeM A FiG. 3.12 18 systeM B 3.14 electricAl DiAGrAMs Should the Economy 7 system not to be used, a separate 13 amp supply to each element will be required through a double pole fused isolating switch having a contact gap of at least 3mm on each pole.The immersion heater shall be installed with 85°C rubber insulated HOFR-sheathed flexible cable complying with Table 8 of BS 6141: 1991. Make the connection(s) to the immersion heater(s) as per FiG. 3.13 and FiG. 3.14. For High Capacity 500 litre models see FiG. 3.15 (page 20). Single Element THERMAL CUT-OUT THERMOSTAT ELEMENT 3 kW L1 N 240V~ FiG. 3.13 THERMAL CUT-OUT THERMOSTAT L1 DAY ELEMENT 3 kW 240V~ N THERMAL CUT-OUT THERMOSTAT L2 NIGHT ELEMENT 3 kW 240V~ ECONOMY 7 N FiG. 3.14 19 20 Live Supply from common fused spur FiG. 3.15 IMpORTANT: WHEN WIRING THE 500 LITRE CYLINDERS IMMERSION HEATER ENSURE THAT A SUITABLE HEAT RESISTANT CABLE RATED ABOVE THE PROTECTIVE DEVICE IS USED (I.E. 6MM FOR 32AMP). Earths omitted for clarity Neutral L3 L2 L1 4 2 3 1 Neutrals to be connected using amp tag connectors Live wires supplied in kit Switched Live 5 Terminals 6 SINGLE PHASE WIRING INSTRUCTIONS FOR 6KW IMMERSION HEATER CLAS HE both zones timed from integral timer GENUS Range program time zones 1 & 2 on digital display NOTE: Enable Parameter 223 and change from 0 to 1 Wiring diagram for two 2 Port Valves with Ariston GENUS HE, CLAS HE and CLAS boilers with 2 zone clip in fitted. FiG. 3.16 note: witH reGArDs to tHe AQuABrAvo itsi cylinDers, For More DetAileD wirinG instructions pleAse contAct tHe tecHnicAl DepArtMent on 0870 241 8180. 21 Wiring diagram for two 2 Port Valves FiG. 3.16 note: witH reGArDs to tHe priMo itsi cylinDers, For More DetAileD wirinG instructions pleAse contAct tHe tecHnicAl DepArtMent on 22 0870 241 8180. Wiring diagram for a 3 Port Valve & 2 Port Valve FiG. 3.17 23 4. COMMISSIONING The thermostat(s) on the immersion heater(s) should be adjusted to trip at 60-65°C. This is the ideal temperature to prolong element life in hard water areas. Scale on the sheath builds up more rapidly at temperatures above this causing the element to overheat and premature failure can occur. Higher temperatures without additional controls would result in scalding. In known hard water areas the use of a scale inhibitor is also recommended. In addition to the thermostat the thermal cut-out will switch power off to the element should the thermostat malfunction, causing an excessive rise in water temperature. The thermal cut-out can be reset manually after the fault has been corrected. inDirect systeMs For models up to 300 litres a mains supply of 240V, 3kW (13 amps) will be required for the direct immersion heater. heat resistant cable, round 3 core 2.5mm2 (to BS6141) must be used. For High Capacity 500 litre models consult the wiring diagram on page 20 of this manual. For indirect controls a 240V, 3 amp supply is required. The cables must be clamped in position (as previously stated) and the control thermostat should be set at 60°C for the reasons above. In addition to the thermostat there is a thermal cut-out should the thermostat fail. Refer to FiG. 3.13. wArninG : tHe AppliAnce Must Be eArtHeD. The earth continuity conductor of the electrical installation must be effectively connected to all exposed parts of other appliances and services in the room in which the water heater is to be installed and conform to the I.E.E. wiring regulations. note: Do not switch on the immersion heater or fire the boiler until the cylinder is full of water. Check for obvious signs of damage to the cylinder and controls, and also that the controls fitted correspond with the references quoted in these instructions. Ensure that the drain cock at the base of the appliance is closed before commencing. 1) ProTech Models Only. Ensure that the ProTech anti-corrosion system is connected to the electrical supply; 2) Ensure that the line strainer (situated in the pressure reducing valve) is clear of installation debris and clean if necessary; 3) Check that the pressure in the expansion vessel is the same as the incoming water pressure; 4) Open all outlet taps; 5) Turn on mains water supply and allow the water heater to fill; 6) Ensure that the hot water system is flushed in accordance with BS 6700; 7) Close taps in turn after having purged the system of air; 8) Check for leaks around the controls and immersion heaters and again after the unit has heated up; 9) Check that no water is passing to waste through the relief valves; 24 10) Test the operation of the temperature & pressure relief and expansion valves by lifting/turning the manually operated test lever/cap and observing that water flows through freely and safely to waste; 11) Check that the discharge pipe is plumbed so that it falls continuously and that no taps, valves or other shut off devices are installed in the pipe; 12) Check that all thermostats are set at approximately 60-65°C; 13) DIRECT UNITS. Switch on immersion heater(s) and allow unit to heat up. Check operation of thermostat(s); 14) INDIRECT UNITS. Fill the indirect (primary) circuit following the boiler instructions. Switch on the boiler, ensure that the programmer is in the domestic hot water position. Allow unit to heat up and check operation of indirect thermostat and motorised valve(s); 15) Check the temperature of the hot water at the nearest outlet and record in the Benchmark Commissioning Checklist; 16) Demonstrate operation to user, including operation of temperature & pressure relief valve and what to do if it operates; 17) Give this manual along with the completed Benchmark Commissioning Checklist to the user to retain for future reference and make the customer aware that periodic checks of the equipment are essential for safety. 25 5. MAINTENANCE To ensure efficient and safe operation, and to maintain the warranty, it is necessary to ensure the appliance is serviced annually by a competent person. After each service is finished, please ensure that the service record sheet (found towards the back of the manual) is completed by the engineer. Before servicing, preliminary electrical system checks must be carried out to ensure electrical safety (i.e. polarity, earth continuity, resistance to earth and short circuit). NOTE: While there is no direct inspection access point on the cylinder, it may be possible to use the immersion heater boss(es) for this purpose. 5.1 protecH Anti-corrosion systeM wArninG: SWITCH OFF THE POWER SUPPLY BEFORE WORKING ON THE APPLIANCE. trouble-shooting: 1) The green L.E.D. is NOT on: - Check to see that the circuits electric plug is connected (if not, connect); - Check to see that the P.C.B, is supplied with electricity (if not, replace the supply cable); - Check to see that 230 V electricity is supplied (if not, ensure that 230 V is supplied); - If all these checks fail to locate the problem, replace the electronic circuit (installer). 2) The red L.E.D. is on: - Check to see that the tank is filled with water (if not, fill it before carrying out the following checks); - Check to see that the clip-on circuit connector is in the proper position (if not, position correctly); - Check to see that the electrodes connection lead is property connected (to check this, gently pull on it) (if not, replace the electrode); - Check to see that the connection lead to the tank is properly connected to the tank (if not, connect properly); . - Check to see that the two leads from the clip-on circuit connector are not damaged, stripped, etc. (if so, replace the electrode); - If all these checks fail to locate the problem, replace the electronic circuit. note: To replace the P.C.B, there is no need to drain the cylinder; 1) Disconnect the two supply cables from the P.C.B. to the supply terminal; 2) Disconnect the clip-on circuit connector and polarising slot which connects the circuit to the tank and the electrode; 3) Disconnect the P.C.B. from its supporting plate (plastic clips in the 4 corners) and; 4) Replace the defective circuit with a new one, then re-install in reverse order to the above. 5.2 tHerMAl cut-out(s) If the thermal cut-out has operated the cause must be found before resetting (see section 6). 5.3 iMMersion HeAter(s) Should the immersion heater(s) become scaled, we would recommend that the immersion heaters be replaced, a scale reducer be fitted on the cold water supply to the cylinder and that the thermostat is set below 60OC to prevent further scale formation. 5.4 unventeD controls Check controls as per the following: 1) Line strainer - with the water supply turned off remove screen from strainer and clean off any debris; 2) Expansion vessel - with the water supply turned off and taps open, check 26 expansion vessel pressure and top up as necessary; 3) Temperature & pressure relief valve - with the water supply turned on, check manually by lifting the test lever/turning the test knob (ensure valve closes after testing); 4) Expansion relief valve - check manually by turning the test knob (ensure valve closes after testing); 5) Discharge pipes (D1) - from both temperature & pressure relief and expansion relief valve for obstructions; 6) Tundish & discharge pipe (D2) - open either valve gradually to produce a full bore discharge into tundish and D2 without any back pressure; 7) Pressure reducing valve - check that the correct outlet pressure is being maintained by recording the pressure at an in-line terminal fitting e.g. tap. 5.5 tHerMostAts Ensure that all thermostats are adjusted for the correct temperature setting, this should be between 60 and 65°C. 5.6 MAintenAnce proceDure To ensure efficient and safe operation, and to maintain the warranty, it is necesary to ensure the appliance is serviced annually by a competent person. After each service is finished, please ensure that the service record sheet (found towards the back of the manual) is completed by the engineer. After servicing, preliminary electrical system checks must be carried out to ensure electrical safety (i.e. polarity, earth continuity, resistance to earth and short circuit). IMPORTANT NOTE: TO To drain the cylinder it is necessary to proceed as follows: AVOID POTENTIAL IMPLOSION OF THE CYLINDER WHILST DRAINING, ALL TAPS AND THE T&P VALVE MUST BE OPEN TO ALLOW AIR INTO THE CYLINDER DURING THE DRAINING PROCESS. 1) Close the mains supply service valve; 2) Open hot water taps; 3) Attach a hose and open the drain cock and allow the cylinder to empty, taking care of hot water contained in the cylinder. (Pumping the water out will completely drain the cylinder) Magnesium Anodes (stD and sti models only) No longer than every 12 months, the installer should check the magnesium anti-corrosion anodes (consult the label on the face of the unit for the correct location). Assessment of the condition of the bottom anode (where fitted) can be made by judging the condition of the top anode. Removal of anodes; 1) 2) 3) 4) Close the mains supply service valve; Open hot water taps; Attach a hose and open the drain cock and allow the cylinder to empty; The anodes are removed by unscrewing; EXAMINE THE ANODES AND IF THE DIAMETER IS LESS THAN 10mm replace both anodes. The use of an approved P.T.F.E. sealing tape is required to ensure watertight connection for anodes. thermal cut-out(s) If the thermal cut-out has operated the cause must be found before resetting. immersion Heater(s) Should the immersion heater be scaled, we would recommend it be replaced. 27 unvented controls(s) Check controls as per the following: 1) Line strainer - with the water supply turned off remove screen from strainer and clean of any detritus; 2) Expansion vessel - with the water supply turned off and taps open, check expansion vessel pressure and top up as necessary; 3) Temperature & pressure relief valve - with the water supply turned on, check manually by lifting the test lever/turning the test knob (ensure valve closes after testing); 4) Expansion relief valve - check manually by turning the test knob (ensure valve closes after testing); 5) Discharge pipes (D1) - from both temperature & pressure relief and expansion relief valve for obstructions; 6) Tundish & discharge pipe (D2) - open either valve gradually to produce a full bore discharge into tundish and D2 without any back pressure; 7) Pressure reducing valve - check that the correct outlet pressure is being maintained by recording the pressure at an in-line terminal fitting i.e. tap. thermostats Ensure that all thermostats adjusted for the correct temperature setting, this should be between 60 and 65°C. After servicing, complete Benchmark Service Record located on page 35 of this manual. note! wHere tHere is A possiBility oF scAle ForMinG , it is recoMMenDeD tHe tHerMostAt Be set to Below incoMinG MAins supply 28 60oc AnD A scAle reDucer Be FitteD on tHe 6. FAuLT FINdING FAult possiBle cAuses reMeDy 1) Mains cold water supply shut off Check and open Isolating and/or stop valve. Check water, Local Water Authority 2) Line strainer blocked Turn off mains water supply, remove line strainer and clean 3) Cold Water Combination valve fitted incorrectly Check direction of flow arrows on valve, refit in correct position if necessary 1) Low mains water pressure Check pressure, consult Local Water Authority if necessary 2) Line strainer partially blocked Turn off mains water supply, remove line strainer and clean 3) Size of service pipe too small Increase to size stated on page 9 1) Direct immersion heater is not switched on Check immersion heater, switch on if necessary 2) Direct thermal cut-out has operated Test thermostat operation and wiring, if faulty, correct/replace. Reset cut-out 3) Boiler programmer set to central heating only (Indirect models) Check switch on domestic hot water if necessary 4) Boiler is not functioning (Indirect models) Check boiler operation, if fault suspected consult manufacturer's instructions 5) Indirect thermal cut-out has operated Test thermostat operation and wiring, if faulty, correct/replace. Reset cut-out 6) Motorised valve jammed or not wired correctly (Indirect models) Check wiring and operation of motorised valve correct/ replace as necessary DiscHArGe FroM pressure/ teMperAture relieF vAlve 1) Pressure above 7 bar, failure of pressure reducing valve. Temperature above 90ºC failure of thermal control Shut down boiler or immersion heater. Check pressure reducing valve and thermal controls. Replace if necessary DiscHArGe FroM expAnsion vAlve 1) Continually. Pressure reducing valve faulty Check pressure from valve. Replace if over 3.5 bar 2) When heater is heating. Faulty expansion vessel or lost charge Check charge of vessel. Recharge vessel to 3.5 bar or match incoming mains pressure replace if necessary 3) Back feed of high mains pressure via mixer. Service / replace mixer 1) Expansion Vessel fitted vertically. Ensure vessel is fitted horizontally or connection at top. 2) Pipework not secure Clip pipework 3) Jumpers on taps loose Replace tap jumpers 4) Flexible hose connecting expansion vessel Remove flexible hose and hard pipe. no Hot wAter Flow reDuceD Flow rAte wAter FroM Hot tAps is colD wAter HAMMer 29 148 75.3 12 7 3.5 3.5 6 7/95 3.5 240 3 (1) 3.5 85 22.6 0.9 11.1 0.5 22 18 1.52 58 0 <5 196 79.5 12 7 3.5 3.5 6 7/95 3.5 240 3 (1) 3.5 85 22.6 0.9 11.9 0.5 38 32 1.82 63 0 <5 300 453 86.4 80.8 12 12 7 7 3.5 3.5 3.5 3.5 6 6 7/95 7/95 3.5 3.5 240 240/400 3 6 (1) (2) 3.5 3.5 85 85 22.6 30 0.9 0.9 13.6 18 0.5 1.3 61 66 51 55 1.56 1.94 103 146 0 0 <5 <5 Classico - STI 500 HE Classico - STI 300 HE 462,5 123 - 79 12 12 7 7 3.5 3.5 3.5 3.5 6 6 7/95 7/95 3.5 3.5 240/400 240 3 6 (1) (2) 4:02 2:57 3.5 3.5 85 19.4 0.9 6.2 0.35 51 43 1.3 49 130 0 0 <5 <5 Classico - STI 210 HE 148 196 300 12 12 12 7 7 7 3.5 3.5 3.5 3.5 3.5 3.5 6 6 6 7/95 7/95 7/95 3.5 3.5 3.5 240 240 240 3+3 3+3 3+3 (1) (1) (1) 3:07 4:00 6:15 2:16 2:55 4:34 3.5 3.5 3.5 65 49 94 0 0 0 <5 <5 <5 Classico - STI 150 HE 126 12 7 3.5 3.5 6 7/95 3.5 240 3+3 (1) 2:26 1:46 3.5 42 0 <5 Classico - STI 125 HE l 100 % bar 12 bar 7 bar 3.5 bar 3.5 bar 6 bar/°C 7/95 bar 3.5 V 240 kW 3 (1) h:min 1:56 h:min 1:12 bar 3.5 ºC mbar m3/h kW m2 min min Kg 41 0 <5 Classico - STD 500 HE Classico - STD 300 HE Classico - STD 210 HE Classico - STD 150 HE Nominal Capacity ** Hot water capacity ** Maximum Water Supply Pressure* Maximum Design Pressure Operating Pressure Expansion Vessel Charge Pressure Expansion Relief Valve Setting Pressure & Temperature Relief Valve Setting Pressure Reducing Valve Set Pressure Electrical Supply Immersion Heater Rating Immersion Heater Type Direct Reheat Time (Single element) (100%) Direct Reheat Time (Single element) (70%) Maximum Primary Pressure Maximum Operating Temperature (heating fluid) Pressure Drop Through Primary Coil Primary Flow Rate Heat Exchanger Performance (Flow rate 0.9m3/h) Coil Surface Area Reheat Time ** Indirect Reheat Time (70%) Heat Loss (kWh in 24h) EN 60379 Nett Weight Ozone Depletion Potential (ODP) Global Warming Potential (GWP) Classico - STD 125 HE TEChNICAL dATA ST Protech 100 7. Note: The above cylinders were tested in accordance with EN12897:2006 * To pressure reducing valve ** Tested in accordance with EN12897:2006 (1) Single Phase (2) Single Phase/Three phase The power consumption data in the table and the other information given in the Product Data Sheet (Annex A attached to the product) are defined in relation to EU Directives 812/2013 and 814/2013. 30 AQUABRAVO ITI 255 146 12 7 3.5 3.5 6 7/90 3.5 240 3 (1) 3:19 2:24 3.5 85 186 0.9 17.46 0.78 30 22 1.52 30 0 <5 208 12 7 3.5 3.5 6 7/90 3.5 240 3 (1) 4:51 3:17 3.5 85 238 0.9 24.0 0.89 35 24 1.73 43 0 <5 253 12 7 3.5 3.5 6 7/90 3.5 240 3 (1) 5:56 3:39 3.5 85 262 0.9 24.59 0.89 41 31 2.12 49 0 <5 207 298 245 12 12 12 7 7 7 3.5 3.5 3.5 3.5 3.5 3.5 6 6 6 7/90 7/90 7/90 3.5 3.5 3.5 240 240 240 3 3 3 (1) (1) (1) 7:19 4:56 3.5 3.5 3.5 85 85 85 tba tba 238 tba tba 0.9 26.1 27.0/20.0 27.0/20.0 0.89 1.1/0.75 1.1/0.75 29 24 49 20 17 34 1.94 1.74 2.47 60 53 65 0 0 0 <5 <5 <5 AQUABRAVO ITSI 305 AQUABRAVO ITI 215 125 12 7 3.5 3.5 6 7/90 3.5 240 3 (1) 2:46 2:03 3.5 85 176 0.9 17.28 0.67 25 18 1.43 28 0 <5 AQUABRAVO ITSI 255 AQUABRAVO ITI 150 77 12 7 3.5 3.5 6 7/90 3.5 240 3 (1) 1:33 1:21 3.5 85 189 0.9 17.7 0.5 14 10 1.24 22 0 <5 AQUABRAVO ITSI 215 AQUABRAVO ITI 130 298 12 7 3.5 3.5 6 7/90 3.5 240 3+3 (1) 7:19 4:56 3.5 60 0 <5 AQUABRAVO ITI 305 AQUABRAVO ITI 80 AQUABRAVO ITD 215 146 209 12 12 7 7 3.5 3.5 3.5 3.5 6 6 7/90 7/90 3.5 3.5 240 240 3+3 3+3 (1) (1) 3:19 4:51 2:24 3:17 3.5 3.5 30 41 0 0 <5 <5 AQUABRAVO ITD 305 l 126 bar 12 bar 7 bar 3.5 bar 3.5 bar 6 bar/°C 7/90 bar 3.5 V 240 kW 3+3 (1) h:min 2:46 h:min 2:03 bar 3.5 ºC mbar m3/h kW m2 min min Kg 27 0 <5 AQUABRAVO ITD 150 AQUABRAVO ITD 130 Nominal Capacity ** Maximum Water Supply Pressure* Maximum Design Pressure Operating Pressure Expansion Vessel Charge Pressure Expansion Relief Valve Setting Pressure & Temperature Relief Valve Setting Pressure Reducing Valve Set Pressure Electrical Supply Immersion Heater Rating Immersion Heater Type Direct Reheat Time (Single element) (100%) Direct Reheat Time (Single element) (70%) Maximum Primary Pressure Maximum Operating Temperature (heating fluid) Pressure Drop Through Primary Coil Primary Flow Rate Heat Exchanger Performance (Flow rate 0.9m3/h) Coil Surface Area Reheat Time ** Indirect Reheat Time (70%) Heat Loss (kWh in 24h) EN 60379 Nett Weight Ozone Depletion Potential (ODP) Global Warming Potential (GWP) 291 12 7 3.5 3.5 6 7/90 3.5 240 3 (1) 3.5 85 tba tba 27.0/20.0 1.1/0.75 34 24 2.14 66 0 <5 Note: The above cylinders were tested in accordance with EN12897 * To pressure reducing valve ** Tested in accordance with EN12897:2006 (1) Single Phase The power consumption data in the table and the other information given in the Product Data Sheet (Annex A attached to the product) are defined in relation to EU Directives 812/2013 and 814/2013. 31 8. BENChMARK COMMISSIONING ChECKLIST MAINS PRESSURE HOT WATER STORAGE SYSTEM COMMISSIONING CHECKLIST This Commissioning Checklist is to be completed in full by the competent person who commissioned the storage system as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference. Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not affect statutory rights. Customer name: Telephone number: Address: Cylinder Make and Model Cylinder Serial Number Commissioned by (PRINT NAME): Registered Operative ID Number Company name: Telephone number: Company address: Commissioning date: To be completed by the customer on receipt of a Building Regulations Compliance Certificate*: Building Regulations Notification Number (if applicable) ALL SYSTEMS PRIMARY SETTINGS (indirect heating only) Is the primary circuit a sealed or open vented system? Sealed Open What is the maximum primary flow temperature? °C ALL SYSTEMS What is the incoming static cold water pressure at the inlet to the system? bar Has a strainer been cleaned of installation debris (if fitted)? Yes No Is the installation in a hard water area (above 200ppm)? Yes No If yes, has a water scale reducer been fitted? Yes No What type of scale reducer has been fitted? What is the hot water thermostat set temperature? °C What is the maximum hot water flow rate at set thermostat temperature (measured at high flow outlet)? I/min Time and temperature controls have been fitted in compliance with Part L of the Building Regulations? Type of control system (if applicable) Yes Y Plan Is the cylinder solar (or other renewable) compatible? S Plan Other Yes What is the hot water temperature at the nearest outlet? No °C All appropriate pipes have been insulated up to 1 metre or the point where they become concealed Yes UNVENTED SYSTEMS ONLY Where is the pressure reducing valve situated (if fitted)? What is the pressure reducing valve setting? Has a combined temperature and pressure relief valve and expansion valve been fitted and discharge tested? bar Yes The tundish and discharge pipework have been connected and terminated to Part G of the Building Regulations No Yes Are all energy sources fitted with a cut out device? Yes No Has the expansion vessel or internal air space been checked? Yes No THERMAL STORES ONLY What store temperature is achievable? °C What is the maximum hot water temperature? °C ALL INSTALLATIONS The hot water system complies with the appropriate Building Regulations Yes The system has been installed and commissioned in accordance with the manufacturer’s instructions Yes The system controls have been demonstrated to and understood by the customer Yes The manufacturer’s literature, including Benchmark Checklist and Service Record, has been explained and left with the customer Yes Commissioning Engineer’s Signature Customer’s Signature (To confirm satisfactory demonstration and receipt of manufacturer’s literature) *All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a Competent Persons Scheme. A Building Regulations Compliance Certificate will then be issued to the customer. © Heating and Hotwater Industry Council (HHIC) 32 www.centralheating.co.uk 9. BENChMARK SERVICE RECORd It is recommended that your hot water system is serviced regularly and that the appropriate Service Record is completed. Service Provider Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions. SERVICE 01 Date: SERVICE 02 Engineer name: Engineer name: Company name: Company name: Telephone No: Telephone No: Comments: Comments: Signature Signature SERVICE 03 Date: SERVICE 04 Engineer name: Engineer name: Company name: Company name: Telephone No: Telephone No: Comments: Comments: Signature Signature SERVICE 05 Date: SERVICE 06 Engineer name: Engineer name: Company name: Company name: Telephone No: Telephone No: Comments: Comments: Signature Signature SERVICE 07 Date: SERVICE 08 Engineer name: Engineer name: Company name: Company name: Telephone No: Telephone No: Comments: Comments: Signature Signature SERVICE 09 Date: SERVICE 10 Engineer name: Engineer name: Company name: Company name: Telephone No: Telephone No: Comments: Comments: Signature Signature Date: Date: Date: Date: Date: 33 Manufacturer: Commercial subsidiary: Ariston thermo uk ltd Ariston Building Hughenden Avenue High Wycombe Bucks. HP13 5FT Telephone: (01494) 755600 Fax: (01494) 459775 Internet: www.ariston.co.uk E-mail: email@example.com technical service Hot line: (0870) 241 8180 customer service Help Desk: (0870) 600 9888 Unvented Cylinder Manual 06/2017 - 420010309607 Ariston thermo Group, luce - France In the interests of our customers, Ariston Thermo UK Ltd is continually developing these products to improve both performance and design. We therefore reserve the right to change specification without prior notice. This manual is accurate at the date of printing. Consumer statutory rights are not affected.