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MEGAFLO Eco SolaReady Unvented Hot Water Cylinders MEGAFLO Eco SolaReady Product Guide Contents Product specification Introduction 4 Component checklist 4 General requirements 4 Outlet/terminal fittings 5 Limitations 5 Water supply 6 Electrical supply 6 The environment 6 Specifications and dimensions 6 Installation Instructions General installation 8 Installation of solar primary hydraulic station 15 Direct model 17 Indirect model 18 Installation of solar differential temperature controller 21 Commissioning Commissioning 22 Commissioning of solar primary system 23 Commissioning of hydraulic station 24 Commissioning of solar differential temperature controller 25 Commissioning record 35 Maintenance Servicing and maintenance record sheet 36 Maintenance 37 Fault finding 38 Servicing 2 Servicing 42 Spares 42 Spares stockists 47 Benchmark checklists 48 Benchmark service record 50 Customer service contacts 52 Thank you for purchasing a high quality Megaflo Eco SolaReady Solar Thermal Domestic Hot Water System. The sun is the ultimate source of most of our renewable energy supplies. Energy from the sun is clean and abundant. There is a widely held opinion that the UK does not have enough sun to make solar systems worthwhile. In fact parts of the UK have annual solar radiation levels equal to 60% of those experienced at the equator. However, this energy is not received uniformly throughout the year. Some 70% of UK annual radiation is received over the period April to September and 25% is received in the months of June and July. Solar water heating technology captures energy from the sun and transfers this to a water heater to raise the water temperature therefore reducing the reliance on fossil fuel energies such as gas, oil and electricity. Up to 60% of a dwelling’s annual hot water requirement can be provided by a solar water heating system. The balance is provided by traditional means via a second heat exchanger connected to a fossil fuel boiler or electrical heating by electric boiler or immersion heater. The Megaflo Eco SolaReady water heating system provides all the principal components required for an efficient solar water heating system. The sun’s energy is captured by a series of solar collector panels through which a special heat transfer fluid is pumped. As the fluid passes through the collector panels its temperature is raised. The heated fluid is circulated through a heat exchanger coil in the base of the Megaflo Eco SolaReady solar storage cylinder transferring the heat gained to the stored water, gradually raising its temperature. The cooled fluid then returns to the collector panel to be heated again. Heating by the solar coil is controlled by a solar differential temperature controller that ensures the system will only operate when there is useful solar heating gain at the collector panel. As the sun’s energy input to the collector panels is variable supplementary heating by a conventional boiler or electric immersion heater should be provided. 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 it 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 Heating and Hotwater Industry Council who manage and promote the Scheme. Visit www.centralheating.co.uk for more information. IMPORTANT NOTE TO USER: PLEASE REFER TO THE USER GUIDE SECTION ON PAGE 2 FOR IMPORTANT INFORMATION WITH RESPECT TO THE BENCHMARK SCHEME 3 PRODUCT SPECIFICATION Introduction Congratulations on your purchase of a Megaflo Eco SolaReady unvented water heater. The Megaflo Eco SolaReady is manufactured in the UK from top quality materials and meets all the latest relevant safety and constructional standards. The high grade Duplex stainless steel cylinder offers exceptional strength and corrosion resistance which is backed by a Lifetime guarantee* Its performance and insulation levels exceed the latest requirements of Building Regulation Part L. The Megaflo Eco SolaReady unvented water heater can be fed directly from the cold water mains supply to the property without the need for separate feed cisterns or vent pipes. It is supplied complete with all its necessary inlet and safety controls, electric immersion heater(s) and, for indirect units, a cylinder thermostat, thermal cut-out, 2-port motorised valve and wiring centre. Generally its pressure and flowrate performance will far exceed that from a comparable vented system, thermal store, multipoint instantaneous gas heater, or combination boiler. Please read and understand this product guide before starting work. Please leave this product guide with the user following installation. *See terms and conditions of user guide. Component Checklist – see figure 1 Before commencing installation check that all the components for your Megaflo Eco SolaReady unit are contained in the package. The following components are supplied as standard with your Megaflo Eco SolaReady unit: Supplied attached Supplied loose • Tundish • T&P Relief Valve Insulation Set •Factory fitted Indirect Thermostat and Thermal cut-out (Indirect units only) • Wiring Centre (Indirect units only) • Factory fitted immersion heater(s) and thermal controls • Solar circuit expansion vessel (including mounting bracket) • Cold Water Inlet Control Kit, comprising of: • DHW expansion vessel (including mounting bracket) • 3 Bar Pressure Reducing Valve (Fig 3) Page 8 • 2-Port Motorised Valve (Indirect units only) • Flexible solar expansion vessel connection pipe • 8 Bar Pressure Relief Valve (Fig 4) Page 9 • Stop cock • Drain Valve Please note: For East / West array installations, the following kit is required: 95 970 169 •Factory fitted Temperature / Pressure Relief Valve (set at 90ºC / 1 Mpa (10bar)) • Thermostatic blending valve General Requirements Important: Please read and understand this product guide before installing the Megaflo Eco SolaReady water heater. Incorrect installation may invalidate the guarantee. This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of knowledge and experience, unless they have been given supervision or instruction concerning the use of the appliance by a person responsible for their safety. The Megaflo Eco SolaReady must be Installed, Commissioned and Maintained by a competent installer in accordance with Building Regulation G3 (England and Wales), Technical Standard P3 (Scotland) or Building Regulation P5 (Northern Ireland) and the Water Fitting Regulations (England and Wales) or Water Byelaws (Scotland). Following Installation and Commissioning, the operation of the heater should be explained to the user and the user guide left with them for future reference. Storage The Megaflo Eco SolaReady is supplied on a pallet with its associated control kits. It should be stored upright in a clean, dy, frost-free environment prior to installation. Siting the Megaflo Eco SolaReady (See Figure 1) The Megaflo Eco SolaReady unit must be vertically floor mounted. It can be placed anywhere convenient provided the discharge pipe(s) from its safety valves can be correctly installed. Areas that are subject to freezing must be avoided. Ensure that the floor is of sufficient strength to support the “full” weight of the unit (refer to Tables 2 and 3 on page 7 for unit weights). Pipe runs should be kept as short as possible for maximum economy. Access to associated controls, immersion heaters and indirect controls should be possible for servicing and maintenance of the system. Please do not install valves or pipework (except discharge pipe) within 50mm (2”) of the T&P relief valve to allow your insulation set to be fitted. The insulation set is important to ensure heat and energy conservation. See page 12 for more information. To aid installation, the Megaflo Eco SolaReady is provided with lifting points located in the base moulding and two lifting aids mounted on the upper rear casing. The weights of the units are noted on the tables on page 7, see tables 2 and 3. 4 BALANCED COLD WATER CONNECTION (IF REQ’D) PUMP STATION SAFETY GROUP SOLAR PUMP STATION SOLAR CONTROL INTERFACE AUXILIARY PRIMARY RETURN BLENDING VALVE PRODUCT SPECIFICATION Figure 1 – Component Checklist STOP COCK 3 BAR PRESSURE REDUCING VALVE 8 BAR PRESSURE RELIEF VALVE T & P VALVE QUICK RELEASE CONNECTOR VALVE SOLAR EXPANSION VESSEL AUXILIARY PRIMARY FLOW ELEMENT / CONTROLS HOUSING SECONDARY RETURN TAPPING (IF REQ’D) TUNDISH SOLAR CONTROLS HOUSING SOLAR PRIMARY FLOW SOLAR PRIMARY RETURN DRAIN COCK DHW EXPANSION VESSEL COLD WATER INLET DRAIN COCK DISCHARGE PIPE Outlet / Terminal Fittings (Taps, Etc.) The Megaflo Eco SolaReady can be used in conjunction with most types of terminal fittings. It is advantageous in many mixer showers to have balanced hot and cold water supplies, in these instances the balanced cold water supply should be teed off the supply to the Megaflo Eco SolaReady immediately after the Cold Water Combination Valve (See Figure 5 page 10). A connection is provided for this purpose, if not used it should be capped off with a suitable stop end fitting. Branches to cold drinking outlets should be taken before the valve. Outlets situated higher than the Megaflo Eco SolaReady unit will give outlet pressures lower than that at the heater, a 10m height difference will result in a 0.1 Mpa (1 bar) pressure reduction at the outlet fitting. NOTE: Accessories should have a rated operating pressure of at least 0.8 MPa (8 bar). Limitations The Megaflo Eco SolaReady unvented water heater should not be used in any of the following instances: •Solid fuel boilers or any other boiler in which the energy input is not under effective thermostatic control unless additional and appropriate safety measures are installed. • Gravity circulation primaries. • Steam heating plant unless additional and appropriate safety devices are installed. •Ascending spray type bidets or any other Class 5 back syphonage risk requiring that a Type AA, AB, AD or AG air gap be employed. • Water supplies that have either inadequate pressure or where the supply may be intermittent. • Situations where it is not possible to safely pipe away any discharge from the safety valves. •Areas where the water consistently contains a high proportion of solids, eg. suspended matter that could block the strainer, unless adequate filtration can be ensured. • The installation must be carried out in accordance with the relevant requirements of: •The appropriate Building Regulations: either The Building Regulations (England), The Building Regulations (Scotland) or Building Regulations (Northern Ireland). • The Water Fittings Regulations (England and Wales) or Water Byelaws (Scotland). 5 PRODUCT SPECIFICATION Water Supply Bear in mind that the mains water supply to the property will be supplying both the hot and cold water requirements simultaneously. It is recommended that the maximum water demand be assessed and the water supply checked to ensure this demand can be met. NOTE: A high mains water pressure will not always guarantee high flow rates. Wherever possible the main supply pipe should be in 22mm. The minimum mains water supply requirements should be 0.15 MPa (1.5 bar) working pressure and 20 litres per minute flowrate. At these values outlet flowrates may be poor if several outlets are used simultaneously, the higher the available pressure and flowrate the better the system performance will be. The Megaflo Eco SolaReady has an operating pressure of 3 bar which is controlled by the 3 Bar Pressure Reducing Valve. The 3 Bar Pressure Reducing Valve can be connected to a maximum mains supply pressure of 1.6 MPa (16 bar). The water supply must be of wholesome water quality (Fluid Category 1 as defined by the Water Supply Regulations 1999). The Megaflo Eco SolaReady is only to be used for the storage of wholesome water (max. 250mg/l chloride). Electrical Supply WARNING: THIS APPLIANCE MUST BE EARTHED. IT IS SUITABLE FOR A.C. SUPPLY ONLY. ELECTRICAL INSTALLATION MUST BE CARRIED OUT BY A COMPETENT ELECTRICIAN AND BE IN ACCORDANCE WITH THE LATEST I.E.E. WIRING REGULATIONS. ENSURE THE ELECTRICAL SUPPLY IS SWITCHED OFF BEFORE MAKING ANY CONNECTIONS TO THE MEGAFLO ECO SOLAREADY. The Environment This product is made from many recyclable materials, therefore at the end of its useful life it should be disposed of at a Local Authority Recycling Centre in order to realise the full environmental benefits. Insulation is by means of an approved HCFC/CFC free polyurethane foam. Specifications and Dimensions Outline Specifications Maximum mains water supply pressure (to Cold Water Combination Valve) 1.6 MPa (16 bar) Operating pressure (Pressure reducing valve set pressure – non adjustable) 0.3 MPa (3 bar) Maximum primary circuit pressure 0.3 MPa (3 bar) Expansion relief valve set pressure 0.8 MPa (8 bar) Temperature / Pressure Relief Valve set temp / pressure 90ºC / 1MPa (10 bar) Immersion heater rating (a.c. supply only) 3kW @ 240V, 2.7kW @ 230V Outer casing: White polyester coated corrosion resistant steel. Water container: Duplex stainless steel. 100% pressure tested to 1.5 MPa (15 bar). Thermal insulation: CFC/HCFC free fire retardant expanded polyurethane foam with zero ozone depletion potential. It has a Global Warming Potential (GWP) of 3.1. Nominal thickness 60mm. Pipe connections: All connections accept 22mm outside diameter pipe – compression nuts and olives supplied. Thread rate is ¾" BSP male parallel to accept standard ¾" BSP female fittings if required. Safety features: Solar primary Manually resettable thermal cutout on electrical supply to solar differential controller Direct units Manually resettable thermal cut-out on each heating element Factory fitted Temperature / Pressure Relief Valve Indirect units Manually resettable thermal cut-out on heating element Manually resettable thermal cut-out for primary heating. Must be wired in conjunction with 2-port motorised valve supplied Factory fitted Temperature / Pressure relief valve 6 PRODUCT SPECIFICATION Figure 2 – Cylinder sizing and specification A 780 770 B C DIMENSION A B C D E DIMENSION 250L SI 1845A 1734B 1142 C 1068D 454E 250L 260LSISD 1845 1909 1734 1798 1142 N/A 1068 N/A 454 454 260L 300L SDSI 1909 2160 1798 2048 N/A 1438 N/A 1255 454 454 300L SI 2160 2048 1438 1255 454 F E D F E D C B A 780 770 Table 1 Size Type Dimensions (mm) A B C D E F Indirect 1845 1734 1142 1068 - 454 260 Direct 1909 1798 - 1165 916 454 300 Indirect 2160 2048 1438 1255 - 454 250 Table 2 Size 260 Empty Unit weight (kg) Full Auxiliary volume (litres) 47.3 307.3 170 Heat up times (mins) Lower (3kW) Upper and lower (6kW) Upper (3kW) 178 89 60 Table 3 Size Empty Unit weight (kg) Full Auxiliary volume (litres) 250 56.5 306.5 300 66.5 366.5 Auxiliary coil specification Surface (m²) Heat up (mins) Recovery (mins) Rating (kW) 145 0.73 24.5 20 18.7 175 0.79 22.5 19 24.5 Notes: Heat up and recovery times are based on heating the cylinder from 15ºC to 60ºC. Primary heating times are based on a primary flow temperature of 80ºC at a flowrate of 15 l/min. Table 4 Nominal capacity (litres) Standing heat loss Per day (kWh/24h) Per year (kWh/year) 250 1.56 569.40 260 1.63 594.95 300 1.84 671.60 Table: Figures measured in accordance with KIWA Test Criteria for compliance with UK Building and Water Regulations 7 INSTALLATION Direct Supplier’s name or trade mark Supplier’s model identifier Storage volume V in litres Mixed water at 40 °C V40 in litres The declared load profile The water heating energy efficiency class of the model The water heating energy efficiency in % The annual electricity consumption in kWh Daily fuel consumption Q fuel in kWh The thermostat temperature settings of the water heater, as placed on the market by the supplier Specific precautions that shall be taken when the water heater is assembled, installed or maintained and disposed of at end of life Indirect Model(s) Energy efficiency class Storage volume V in litres Standing loss in W Megaflo Eco SolaReady 260D 260.0 271.0 XL C 38.3 4377 20.190 60°C See page 4 to 42 250Si C 250.0 80.0 300Si C 300.0 88.0 Table: Technical parameters in accordance with European Commission regulations 814/2013 and 812/2013 General Installation Pipe Fittings All pipe connections to the Megaflo Eco SolaReady are made via 22mm compression fittings directly to the unit (nuts and olives supplied). Cold Water Supply A 22mm cold water supply is recommended, however, if a 15mm (½") supply exists which provides sufficient flow (see Section 1 Page 6 “Water Supply”) this may be used. More flow noise may be experienced from small bore pipes due to the increased water velocity through them. The Cold Water Inlet Control kit supplied fitted to the Megaflo Eco SolaReady incorporates a full flow isolating valve which will enable the Megaflo Eco SolaReady to be isolated from the mains supply for maintenance or servicing. To close the valve the blue handle should be turned so that it lies at 90º to the direction of flow. To open, turn the handle so that it lies parallel to the direction of flow. 3 Bar Pressure Reducing Valve – supplied fitted (see figure 3) The 3 Bar pressure Reducing Valve is installed as a complete one-piece unit and incorporates the stopcock. The valve incorporates a factory set, non-adjustable Pressure Reducer / Strainer and a single Check Valve. However, the 3 Bar Pressure Reducing Valve can be connected anywhere on the cold water mains supply prior to the Megaflo Eco SolaReady unit. There is no requirement to site it close to the unit, it can be located at a point where the mains supply enters the premises if this is more convenient but you must install a non-return valve just after the reducing valve for ease of maintenance. If a balanced pressure cold water supply is required to a thermostatic shower mixer valve this may be teed off the supply to the Megaflo Eco SolaReady immediately after the 3 Bar Pressure Reducing Valve (See Figure 5, page 10). A connection is provided for this purpose (see fig 1 page 5). If this is not required the connection pipe must be capped off with a suitable stop end fitting. 8 Figure 3 – 3 Bar Pressure Reducing Valve Pressure reducing valve cartridge (3 Bar) Mains in INSTALLATION Take note of flow direction Outlet to Megaflo eco Solar 22mm compression connection 8 Bar Pressure Relief (Expansion) Valve – supplied fitted (see figure 4) This is installed between the 3 bar Pressure Reducing Valve and the Megaflo Eco SolaReady cylinder. Branches to drinking water outlets should be taken before the Pressure Relief Valve to avoid the possibility of warm expanded water being drawn from the tap. The Pressure Relief (Expansion) Valve is supplied pre-plumbed to the inlet connection of the Megaflo Eco SolaReady unit. No other valve should be fitted between the Pressure Relief (Expansion) Valve and the cylinder inlet. Figure 4 – 8 Bar Pressure Relief Valve Pressure Relief Valve discharge connection Take note of flow direction From cold water Combination Valve Outlet to Megaflo eco Solar Pressure Relief Valve “TEE” ( incorporates Check Valve ) 22mm compression connection 9 Figure 5 – Cold and hot water supply circuits Balanced HWS and MCWS to bathrooms, showers, cloakrooms, etc Blending valve Factory fitted HWS supply 8 Bar Pressure Relief Valve (combined Expansion Relief Valve/Check Valve – factory fitted) Balanced cold water draw-off Temperature/Pressure Relief Valve INSTALLATION 3 Bar Pressure Reducing Valve incorporating Pressure Reducing Valve, Strainer,and Check Valve. (factory fitted) SC Megaflo Eco SolaReady DOC DOC Isolating/Regulating Valves, as required DOC Tundish SC Incoming Cold Water Main DOC KEY MCWS = HWS = SC = DOC = MCWS to Kitchen (unbalanced cold mains supply) Expansion Vessel Discharge pipe to atmosphere (see page 14 “Discharge Pipework”) Mains cold water supply Hot water service Stop Cock / Isolating Valve Drain Off Cock Figure 6 – Solar and CH primary circuits Optional East / West Array kit Solar collector(s) Dashed line denotes Solar Hydraulic Station (supplied fitted) Solar expansion valve Isolating / check valves Motorised valve (supplied) Primary pump Flexible connector Solar circulating pump Solar expansion vessel Air separator M Flow meter S4 Solar discharge collection vessel Megaflo Eco SolaReady M CH circuit 10 Boiler / auxiliary heat source Drain Tap A drain tap is supplied fitted in the cold water supply to the Megaflo Eco SolaReady unit between the 8 Bar Pressure Relief Valve and the heater at the lowest point of the cold water supply pipe. It is recommended that the outlet point of the drain pipe work be at least 1 metre below the level of the heater (this can be achieved by attaching a hose pipe to the drain tap outlet spigot). Ensure any drain-off points are positioned well away from any electrical components. Outlet Pipework Thermostatic blending valve The hot outlet pipework is connected to the "blended water" port of the thermostatic blending valve which is factory fitted. The valve is preset to a temperature of 55ºC, but can be set to a maximum of 65ºC ±2ºC. NOTE: Storage temperature must be set at >55ºC for the blended temperature to be achieved. INSTALLATION Ideally the pipework from the Megaflo Eco SolaReady to the outlet fittings should be in 22mm pipe with short runs of 15mm pipe to showers and basin taps. Small bore pipe can also be used to suit some taps, but runs should be of minimum length. Pipe sizes may vary due to system design. DHW expansion vessel The Expansion Vessel accommodates expansion that results from heating the water inside the unit. The unit is pre-charged at 0.35 MPa (3.5 bar). The Expansion Vessel must be connected between the 8 Bar Pressure Relief Valve and the Megaflo Eco SolaReady cylinder (See Figure 5). An Expansion Vessel mounting bracket is supplied for this purpose. NOTE: DO NOT USE THE POTABLE WATER EXPANSION VESSEL SUPPLIED WITH THE MEGAFLO ECO SOLAREADY FOR ANY OTHER PURPOSE. IT MUST NOT BE USED IN PLACE OF THE SOLAR PRIMARY SYSTEM EXPANSION VESSEL. Secondary Circulation If a secondary circulation system is required it is recommended that it be connected to the Megaflo Eco SolaReady as shown in Figure 7. To achieve this the 1/2” BSP Sensor Pocket must be removed. The secondary return pipe should be in 15mm pipe and incorporate a check valve to prevent backflow. A suitable WRAS approved bronze circulation pump will be required. On large systems, due to the increase in system water content, it may be necessary to fit additional expansion volume to the system by fitting an additional expansion vessel to the secondary circuit. This should be done if the capacity of the secondary circuit exceeds 10 litres. To conserve energy it is recommended any secondary circulation pump is timed to operate only during periods of water draw-off demands. Pipe capacities (copper) 15mm o/d = 0.13 litres per metre run (10 litres = 77m) 22mm o/d = 0.38 litres per metre run (10 litres = 26m) 28mm o/d = 0.55 litres per metre run (10 litres = 18m) NOTE: Secondary circulation is NOT recommended for direct electric units connected to an off-peak electrical supply. Figure 7 – Secondary Circulation Connection HWS supply Blending valve Factory fitted Temperature/Pressure Relief Valve Isolating valves Secondary return WRAS approved bronze secondary circulation pump Check valve SC MCWS to Kitchen (unbalanced cold mains supply) DOC Megaflo Eco SolaReady SC Incoming Cold Water Main DOC 11 T&P Relief Valve Insulation A set of insulating components is supplied with the Megaflo Eco SolaReady water heater and should be installed to gain maximum heat and energy saving benefits. See Figure 8 (below), for installation instructions. Warnings nder no circumstances should the factory fitted Temperature /Pressure Relief Valve be removed other than by authorised U Heatrae Sadia personnel. To do so will invalidate any guarantee or claim. The Cold Water Inlet Control kit must be fitted to the mains water supply to the Megaflo Eco SolaReady unit. INSTALLATION No control or safety valves should be tampered with. ater may drip from the discharge pipe of the pressure relief device (Expansion Valve) and this pipe must be left open to W atmosphere. The discharge pipe should not be blocked or used for any other purpose. The discharge connections from the Pressure Relief (Expansion) Valve and the Temperature & Pressure Relief Valve must not be used for any other purposes. Electrical connections and components should not be placed where they could be splashed in the event of a malfunction, i.e. away from any discharge pipe, the tundish and various valve and pipe connections. Figure 8 – Installation of T&P insulation set IMPORTANT INFORMATION: HOW TO INSULATE YOUR T&P RELIEF VALVE TO SAVE HEAT AND ENERGY A SET OF INSULATING PARTS FOR THE T&P RELIEF VALVE HAVE BEEN SUPPLIED WITH THIS WATER HEATER. INSTALL THE HEATER FIRST THEN FIT THE INSULATING PARTS BY FOLLOWING THE DIAGRAMS BELOW. B A T&P RELIEF VALVE DISCHARGE PIPEWORK LEFT HAND INSULATING PIECE RIGHT HAND INSULATING PIECE TUNDISH D C PLASTIC COVER 12 DISCHARGE PIPE CLIP INTO PLACE ! Discharge Pipework It is a requirement of Building Regulations that any discharge from an unvented system is conveyed to where it is visible, but will not cause danger to persons in or about the building. The tundish and discharge pipes should be fitted in accordance with the requirements and guidance notes of Building Regulations. Building Regulation G3 Requirements and Guidance are reproduced in the following sections. For discharge pipe arrangements not covered by G3 Guidance advice should be sought from your local Building Control Officer. Any discharge pipe connected to the pressure relief devices (Expansion Valve and Temperature / Pressure Relief Valve) must be installed in a continuously downward direction and in a frost free environment. G3 Requirement “...there shall be precautions...to ensure that the hot water discharged from safety devices is safely conveyed to where it is visible but will not cause danger to persons in or about the building”. Notes: INSTALLATION The water may drip from the discharge pipe of the pressure relief device and that this pipe must be left open to the atmosphere. The pressure relief device is to be operated regularly to remove lime deposits and to verify that it is not blocked. 1) Discharge pipe-work D2 can now be a plastic pipe but only pipes that have been tested to a minimum 110°C must be used. 2) Discharge pipe D2 can now be plumbed into the soil stack but only soil stacks that can handle temperatures of 99°C or greater for prolonged periods should be used. Table 5 Figure 9 Safety device (e.g. Temperature relief valve) Metal discharge pipe (D1) from Temperature relief valve to tundish 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 straight pipe (i.e. no elbows or bends) Resistance created by each elbow G½ 15mm 22mm 28mm 35mm Up to 9m Up to 18m Up to 27m 0.8m 1.0m 1.4m G¾ 22mm 28mm 35mm 42mm Up to 9m Up to 18m Up to 27m 1.0m 1.4m 1.7m G1 28mm 35mm 42mm 54mm Up to 9m Up to 18m Up to 27m 1.4m 1.7m 2.3m 600mm max. 300mm min. Discharge below fixed grating (Building Regulation G3 section 3.61 gives alternative points of discharge Discharge pipe (D2) from tundish with continuous fall. See Building Regulation G3 section 3.56, Table 4 and worked example. Trapped gully Worked example of discharge pipe sizing This example is for a G½ temperature 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 5: Maximum resistance allowed for a straight length of 22mm copper discharge pipe (D2) from a G½ temperature relief valve is 9m. Subtract the resistance for 4 No. 22mm elbows at 0.8m each = 3.2m Therefore the permitted length equates to: 5.8m 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 a G½ temperature relief valve equates to 18m. Subtract the resistance of 4 No. 28mm elbows at 1m each = 4m Therefore the maximum permitted length equates to: 14m As the actual length is 7m, a 28mm (D2) copper pipe will be satisfactory. 13 The following extract is taken from the latest G3 Regulations Discharge pipes from safety devices Discharge pipe D1 INSTALLATION 3.50Safety devices such as temperature relief valves or combined temperature and pressure and pressure relief valves (see paragraphs 3.13 or 3.18) should discharge either directly or by way of a manifold via a short length of metal pipe (D1) to a tundish. 3.51 The diameter of discharge pipe (D1) should be not less than the nominal outlet size of the temperature relief valve. 3.52 Where a manifold is used it should be sized to accept and discharge the total discharge form the discharge pipes connected to it. 3.53Where valves other than the temperature and pressure relief valve from a single unvented hot water system discharge by way of the same manifold that is used by the safety devices, the manifold should be factory fitted as part of the hot water storage system unit or package. Tundish 3.54The tundish should be vertical, located in the same space as the unvented hot water storage system and be fitted as close as possible to, and lower than, the valve, with no more than 600mm of pipe between the valve outlet and the tundish (see Diagram 1). Note: To comply with the Water Supply (Water Fittings) Regulations, the tundish should incorporate a suitable air gap. 3.55Any discharge should be visible at the tundish. In addition, where discharges from safety devices may not be apparent, e.g. in dwellings occupied by people with impaired vision or mobility, consideration should be given to the installation of a suitable safety device to warn when discharge takes place, e.g. electronically operated. Discharge pipe D2 3.56 3.57 The discharge pipe (D2) from the tundish should: (a) have a vertical section of pipe at least 300mm long below the tundish before any elbows or bends in the pipework (see Diagram 1); and (b) be installed with a continuous fall thereafter of at least 1 in 200. The discharge pipe (D2) should be made of: (a) metal; or (b)other material that has been demonstrated to be capable of safely withstanding temperatures of the water discharged and is clearly and permanently marked to identify the product and performance standard (e.g. as specified in the relevant part of BS 7291). 3.58The discharge pipe (D2) should be at least one pipe size larger than the nominal outlet size of the safety device unless its total equivalent hydraulic resistance exceeds that of a straight pipe 9m long, i.e. for discharge pipes between 9m and 18m the equivalent resistance length should be at least two sizes larger than the nominal outlet size of the safety device; between 18 and 27m at least 3 sizes larger, and so on; bends must be taken into account in calculating the flow resistance. See Diagram 1, Table 1 and the worked example. Note:An alternative approach for sizing discharge pipes would be to follow Annex D, section D.2 of BS 6700:2006 Specification for design, installation, testing and maintenance of services supplying water for domestic use within buildings and their curtilages. 3.59Where a single common discharge pipe serves more than one system, it should be at least one pipe size larger than the largest individual discharge pipe (D2) to be connected. 3.60The discharge pipe should not be connected to a soil discharge stack unless it can be demonstrated that that the soil discharge stack is capable of safely withstanding temperatures of the water discharged, in which case, it should: (a)contain a mechanical seal, not incorporating a water trap, which allows water into the branch pipe without allowing foul air from the drain to be ventilated through the tundish; (b) be a separate branch pipe with no sanitary appliances connected to it; (c)if plastic pipes are used as branch pipes carrying discharge from a safety device they should be either polybutalene (PB) to Class S of BS 72912:2006 or cross linked polyethylene (PE-X) to Class S of BS 7291-3:2006; and (d) be continuously marked with a warning that no sanitary appliances should be connected to the pipe. 1. Plastic pipes should be joined and assembled with fittings appropriate to the circumstances in which they are used as set out in BS EN ISO 1043-1. 2. Where pipes cannot be connected to the stack it may be possible to route a dedicated pipe alongside or in close proximity to the discharge stack. Note: Termination of discharge pipe 3.61 The discharge pipe (D2) from the tundish should terminate in a safe place where there is no risk to persons in the vicinity of the discharge. 3.62 Examples of acceptable discharge arrangements are: b) to a trapped gully with the end of the pipe below a fixed grating and above the water seal; (c)downward discharges at low level; i.e. up to 100mm above external surfaces such as car parks, hard standings, grassed areas etc. are acceptable providing that a wire cage or similar guard is positioned to prevent contact, whilst maintaining visibility; and (d)discharges at high level: e.g. into a metal hopper and metal downpipe with the end of the discharge pipe clearly visible or onto a roof capable of withstanding high temperature discharges of water and 3m from any plastic guttering system that would collect such discharges. 3.63The discharge would consist of high temperature water and steam. Asphalt, roofing felt and non-metallic rainwater goods may be damaged by such discharges. 14 7.0 Installation of solar primary hydraulic station The solar primary hydraulic station and differential temperature controller are supplied pre-fitted to the Megaflo Eco SolaReady unit. The solar pump and various thermal sensors are pre-wired to the controller, but will require correct installation in the solar primary circuit. 7.2 Figure 10 Identification of comp 1. The main components of the h 1 3 2 Two isolating valves (Fig. 10 thermometers which displa and return temperatures. 4 The main components of the hydraulic station are: – A safety group (Fig. 10, Item which protects the solar pr relief valve and pressure ga safety group. – A non-return valve in both the possibility of gravity cir primary circuit. – A solar circulation pump (F – A flow meter with fill & dr (Fig. 10, Item 5). – An air separator. –Two isolating valves (Fig. 10, Item 1 & 2) with integral thermometers which display the solar primary flow and return temperatures. –A safety group (Fig. 10, Item 3), which protects the solar primary circuit. The pressure relief valve and pressure gauge are integrated in the safety group. 6 5 –A solar circulation pump (Fig. 10, Item 4). –A flow meter with fill & drain valve and shut-off valve (Fig. 10, Item 5). INSTALLATION – Identification of components –A non-return valve in both feed and return prevents the possibility of gravity circulation in the solar primary circuit. Installation of h Fig. 10 –An air separator. The heat transfer fluid is circulated by the solar circulation pump integrated in the hydraulic pump station (Fig. 10). The hydraulic station has a solar differential temperature controller (Fig. 10, Item 6) integrated into the front insulation moulding. This is pre-wired to the solar pump and thermal controls. Pipework installation – general (see Fig 6) 2. The heat transfer fluid is circula pump integrated in the hydraulic 3. The hydraulic station has a sola controller (Fig. 10 Item 6) integra insulation moulding. This is pre-wi In Solar Heating Systems, the collectors, the hydraulic station and solar cylinder must be connected with brazed or silver soldered copper pipes, compression fittings or the multifit accessory flexible steel tube and insulation. (See brochure for details) N.B. Plastic pipes MUST NOT be used for the solar primary pipework. onnections supplied are suitable for pipe diameters of 22mm. However for short pipe runs (up to 10m flow and return) the C use of 15mm diameter pipe is acceptable. All connections and joints must be resistant to temperatures of up to 150°C and resistant to glycol. If any pipe sealants are used these should be resistant to glycol and be able to withstand temperatures of up to 150°C. The solar collectors (panels or evacuated tubes) must be installed according to the instructions supplied with those selected. We can only guarantee the system performance if installed in conjunction with Megaflo supplied collectors. he difference in height between the highest point in the pipework (collector) and the level of the hydraulic pump station T determines the static head for the system. The static head is 0.1 bar times this height in metres. This static head is used when setting the solar primary expansion vessel precharge pressure and the system pressure. If the static head is greater than 1.5 bar (15m) then a larger expansion vessel may be required for larger collector arrays. If the pipe runs between the solar collector and pump station are short (<6m) then a protection vessel (Accessory No. 5131963) should be installed between the pump station and expansion vessel. arthing pipework – all solar primary pipework between the solar collectors, hydraulic station and solar cylinder should be E earth bonded in accordance with current IEE wiring regulations.; enting the pipework – the hydraulic station includes an air collector/separator and bleed point so an automatic air vent is not V necessary. Any section of solar pipework that falls and rises again should be fitted with an additional air vent valve to relieve any trapped air which may cause air locking in the system. The automatic air vent and isolating valve used must be compatible with solar primary systems, i.e. be resistant to glycol and temperatures up to 180ºC. Insulating the pipework – external pipework should be insulated with high temperature resistant materials and be protected against UV degradation. The insulation must be peck-proof and rodent-proof. Internal pipework, especially through unheated spaces such as a loft space, should also be insulated with high temperature resistant materials. Mark the outside of any insulation to identify the flow and return pipes. The collectors are supplied with 2x2m pre insulated flexible stainless steel tubes. Additional lengths (30m) of stainless steel flexible tubes and high temperature insulation can be supplied. 12 © Baxi Heating UK 2012 15 2 1. Connect the safety group (Fig 15 Item 1) to the connection on the hydraulic station return isolating valve assembly (Fig 15 Item 3). Ensure that the pre-fitted gasket is securely in place on the safety group prior to connection. INSTALLATION Connecting the solar expansion vessel Mount the solar expansion vessel (Fig 11 Item 5) adjacent to the hydraulic station so that vessel can bethe connected to the vessel 7.8 the Connecting solar expansion Fig. 16 vessel connection of the safety group (Fig 11 Item 3) using the flexible pipe (Fig 11 Item 6) supplied. (Note: Solar expansion vessel, mounting bracket, self sealing connection and flexible pipe are supplied in the Ancillary Components kit). 4 1. Mount the solar expansion vessel (Fig 16 Item 1) adjacent to The vessel must be mounted as shown (connection to top) and securely supported using the bracket supplied. The self sealing the hydraulic station (Fig 16 Item 2) so that the vessel can be vessel connection should be screwed onto the vessel connection before connecting the flexible pipe (Fig. 16 Item 5). 5 connected to the vessel connection of the safety group (Fig 16 DO NOT replace the solar expansion vessel with either a potable water expansion vessel or boiler sealed system vessel. 3 Item 3) using the flexible pipe (Fig 16 Item 4) supplied. (Note: 1 the fluid circuit is empty or de-pressurised) to a The charge pressure of the solar expansion vessel must be adjusted (when Solar expansion vessel, mounting bracket, self sealing connection pressure equal to the static head + 0.4 bar, or a minimum of 1.2 bar. (NOTE: the static head is the height difference between flexible pipe arepressure suppliedshould in the Ancillary Components kit). the highest point in the pipework (collector) and the hydraulic station in metres x 0.1and bar. The charge not normally exceed 1.9 bar – see also 2 Commissioning of the hydraulic station (page 24). 2. The vessel must be mounted as shown (connection to top) Connecting pipework and securely supported using the wall bracket supplied. The self Connect the flow and return pipes from the solar collector panels / tubes to the pump station viaconnection compression fittings (Fig 17).onto the vessel sealing vessel should be screwed Fittings are for 22mm o/dia pipe. Support the hydraulic assembly when tightening connections. connection before connecting the flexible pipe (Fig. 16 Item 5). 3. DO NOT replace the solar expansion vessel with either a potable water expansion vessel or boiler sealed system vessel. Figure 11 Flow from panel Fig. 17 Return to panel 3 6 5 4. The charge pressure of the solar expansion vessel must be adjusted (when the fluid circuit is empty or de-pressurised) to a pressure equal to the static head + 0.4 bar, or a minimum of 1.2 bar. (NOTE: the static head is the height difference between the highest point in the pipework (collector) and the hydraulic station in metres x 0.1 bar. The charge pressure should not normally exceed 1.9 bar - see also Section 7.4. 2 7.9 1. Connect the flow and return pipes to the pump station via compression fittings (Fig 17 Item 1). Fittings are for 22mm o/dia pipe. Support the hydraulic assembly when tightening connections. 1 Flow to cylinder Fig. 18 Return from cylinder 4 To a suitable container (e.g. Solar fluid discharge vessel Accessory No. 720294601) Return to hydraulic station Return from cylinder Flow to cylinder 16 16 © Baxi Heating UK 2012 Connecting pipework 2. Installing a drain valve It is recommended to install a device for draining the solar heating system (tee piece with drain valve, Fig. 18) into the flow and return at the lowest point in the solar heating system. The drain and its rubber seal must be suitable for solar applications. 3. Connecting the solar cylinder For detailed installation instructions refer to the installation instructions supplied with the solar cylinder. Direct Model Immersion Heater(s) The Megaflo Eco SolaReady Direct is supplied with two factory fitted immersion heaters, each rated 3kW at 240V. See fig 2 page 7 for positions. Wiring (See Figure 16) DO NOT OPERATE THE IMMERSION HEATER(S) UNTIL THE MEGAFLO ECO SOLAREADY HAS BEEN FILLED WITH WATER. Access to Control Unit: DISCONNECT FROM MAINS SUPPLY BEFORE REMOVING ANY COVERS. INSTALLATION All electrical wiring should be carried out by a competent electrician and be in accordance with the latest I.E.E. Wiring Regulations. Each circuit must be protected by a suitable fuse and double pole isolating switch with a contact separation of at least 3mm in both poles. The immersion heater(s) should be wired in accordance with Figure 14 below. The immersion heaters MUST be earthed. The supply cable should be a minimum of 1.5mm² 3 core HOFR sheathed. Removing the Control Cover: Unscrew the large screw using a flat ended screw driver. Lift from bottom of cover at point indicated until cover comes away freely (see Fig 12). Operation See Figure 13 for details on how to adjust the temperature setting of the heater. The thermostat incorporates a thermal cut-out that will switch off the immersion heater in the event of a thermostat failure. The thermal cut-out reset button position is indicated on Figure 13. DO NOT BYPASS THE THERMAL CUT-OUT IN ANY CIRCUMSTANCES. The lower immersion heater can be operated via the solar differential controller (refer to fig. 16, "Block wiring diagram C") for wiring details. See the Commissioning Section for setup details. Note: The solar differential controller is rated at 3 amp and cannot directly switch the immersion heater. This must be done via the Auxiliary Immersion Relay provided. The upper immersion is for boost purposes only and should be manually switched via a separate 13 amp circuit. Figure 12 LUGS Replacing the Control Cover: Tilt and align the top 2 lugs in the holes indicated. Firmly press the cover until it “snaps” back in place. Tighten the large screw ( DO NOT OVER TIGHTEN ). Safety LIFT OFF DO NOT BYPASS THE THERMAL CUT-OUT(S) IN ANY CIRCUMSTANCES DISCONNECT FROM THE MAINS SUPPLY BEFORE REMOVING ANY COVERS NEVER ATTEMPT TO REPLACE AN IMMERSION HEATER OTHER THAN WITH THE RECOMMENDED HEATRAE SADIA MEGAFLO ECO SOLAR SPARE PART LIFT FROM THIS POINT Figure 13 REPLACE THERMAL CUT-OUT RESET BUTTON SPINDLE POSITIONS = MINIMUM TEMP Figure 14Wiring Layout Direct = MAXIMUM TEMP = APPROX 60 °C ROTATE SPINDLE CLOCKWISE FOR TEMPERATURE INCREASE AND COUNTER CLOCKWISE FOR TEMPERATURE DECREASE TEMPERATURE ADJUSTING SPINDLE N L 1.5mm2 3 Core HOFR sheathed cable 17 Indirect Model INSTALLATION Boiler Selection The Megaflo Eco SolaReady Indirect models are supplied with an auxiliary heating coil and are suitable for use with most gas or oil fired boilers compatible with unvented systems i.e. fitted with a temperature control thermostat and thermal cut-out. If in doubt consult the boiler manufacturer. Solid fuel boilers or any other boiler in which the energy input is not under effective thermostatic control, unless additional and appropriate safety measures are installed, SHOULD NOT be used. The boiler used can either be a sealed system or open vented type, maximum primary circuit pressure 0.3Mpa (3 bar). The primary flow from the boiler MUST be pumped. Gravity circulation will not work due to the special design of the primary heat exchanger. It is recommended that an air bleed point or automatic air vent is incorporated in the primary return pipework close to the Megaflo Eco SolaReady unit. The boiler flow temperature should usually be set to 82ºC (maximum flow temperature to primary heat exchanger 89ºC). The boiler cannot be vented through the Megaflo eco Solar unit. Indirect Thermal Cut-Out And 2-Port Motorised Valve To comply with Building Regulations, and to prevent the Megaflo Eco SolaReady from overheating the 2-port motorised valve supplied MUST be fitted to the primary flow to the indirect coil (see Figure 6). Wiring All electrical wiring should be carried out by a competent electrician and be in accordance with the latest I.E.E. Wiring Regulations. The Megaflo Eco SolaReady Indirect combined thermostat and thermal cut-out are factory pre-wired. The 2-port motorised valve supplied MUST be wired in series with the Indirect controls such that the power supply to the valve is interrupted should either the Thermostat or Thermal cut-out operate. Figure 16, diagrams A, B, D and E detail the wiring required between these controls and the motorised valve. Wiring to external controls is made via the terminal block fitted. The cable should be routed through the aperture in the terminal cover and secured using the cable grip provided. The Indirect Thermal cut-out MUST NOT be bypassed. Heating System Controls The controls provided with the Megaflo Eco SolaReady will ensure the safe operation of the Megaflo Eco SolaReady within a central heating system. Other controls will be necessary to control the space heating requirements and times that the system is required to function. Depending on the boiler selected, heating circuit design and controls used it may be beneficial to incorporate a system bypass in the heating system pipework. Figure 15 – Control housing details Control Housing Details The Megaflo Eco SolaReady is compatible with most heating controls, examples of electrical circuits are given in the block wiring schemes. However, other systems may be suitable, refer to the controls manufacturers’ instructions, supplied with the controls selected, for alternative system wiring schemes. The auxiliary indirect heating source can be controlled via the Solar Differential Controller – refer to block wiring schemes B and E and Commissioning Section for setup details. NOTE: The auxiliary backup immersion heater must have a separate 13 amp fused supply and cannot be operated via the Solar Differential Controller on indirect models. Element Connections Indirect control wiring 1 2 3 L N 1.5mm² 3 Core HOFR sheathed cable Immersion Heater(s) The Megaflo Eco SolaReady indirect units (Indirect models) are supplied with an immersion heater which can be used as an alternative heat source should the boiler supply need to be isolated from the Megaflo Eco SolaReady unit. The immersion heater is located within the upper controls housing. Refer to page 17 “Wiring and Operation” for details of wiring and operation of the immersion heater. 18 Figure 16 – Wiring diagrams Diagram A Key In conjunction with auxiliary heating boiler – no reheat control by solar differential controller. 3A fused supply Boiler terminal strip N L L PL N N 1 2 4 N N 1 2 3 4 5 Programmer SL L N 5 3 N Terminal box (supplied) 6 7 8 9 Link 9 N 1 2 3 Cylinder auxiliary controls N 6 N PE 10 1 GY BL BR GR DHW 2 port valve GY BL BR GR CH 2 port valve 11 N 1 2 Room stat Solar o/temp cutout 10 Link 12 2 11 Link 7 6 12 13 14 15 16 Link 5 OR 5 4 N OR L N CH pump PE / E / Solar pump 2 N 11 L N A1 12 See fig 17 N A2 N T1 Solar differential controller T2 T4 A1 T7 11 L N GY BL BR GR OR WH PL SL Live Neutral Green & yellow Blue Brown Grey Orange White Pump live Switched live Protective earth INSTALLATION 8 DHW CH ON N 12 E Solar pump Solar controller 1 L 1 2 NOTE: For boilers with pump over-run, CH pump live supply should be connected to terminal 5 in the terminal box. Solar o/temp cutout Diagram B In conjunction with auxiliary heating boiler – reheat control via solar controller. 3A fused supply N L L Boiler terminal strip PL N SL L N 2 4 5 3 N 3 6 5 Terminal box (supplied) 6 7 8 9 10 11 12 N 8 5 4 N OR L N CH pump 1 N 1 2 3 4 N Programmable room stat N 1 2 13 14 15 A1 N 11 12 Solar pump 14 15 16 Link 7 8 1 2 3 Cylinder auxiliary controls BL BR GR DHW 2 port valve GY BL BR GR CH 2 port valve N Solar o/temp cutout PE 3 GY 6 2 5 OR Solar pump 2 N 11 12 L N A1 N 7 N A2 N A3 N Solar differential controller See fig 17 T1 T2 T4 T5 T7 Solar controller 1 L 1 2 Solar o/temp cutout Diagram C Auxiliary heating by immersion heater – reheat control via solar controller. Immersion heater 13A fused supply N L 3A fused supply N L N 1 N 1 Solar o/temp cutout PE 2 3 8 4 5 6 Solar pump 2 N 11 12 L N A1 N Solar controller 1 N L 1 2 Solar o/temp cutout 7 8 9 T1 T2 9 N 10 12 T5 T7 13 16 Relay 1 5 A2 N A3 N Solar differential controller See fig 17 T4 Solar controller A3 11 N 8 9 1 5 COM NO Auxiliary immersion heater L N Immersion heater A1 N 11 12 Solar pump NOTE: The above wiring is for the lower immersion heater only. Switching of the upper immersion heater is not possible using the solar differential controller. 19 Diagram D In conjunction with auxiliary heating boiler with a 3 port mid position valve system – no reheat control via solar controller. 3A fused supply N L L Boiler terminal strip PL N SL L N N 2 4 5 3 N Terminal box (supplied) 6 7 8 9 10 1 N 1 2 3 4 N 5 Link INSTALLATION 9 5 Link 10 N 1 2 3 Cylinder auxiliary controls N 7 8 N 1 Room stat 2 Solar o/temp cutout PE 11 9 10 7 12 13 14 15 16 Link 6 Not used GY BL BR GR DHW 2 port valve GY BL WH GR 3 port mid position valve N Programmer DHW ON DHW OFF CH ON 8 11 OR 6 4 N OR L N CH pump Solar pump 2 N 11 12 L N A1 N See fig 17 A2 N A3 N Solar differential controller T1 T2 T4 T5 T7 A1 N 11 12 Solar pump Solar controller 1 L 1 2 Solar o/temp cutout Diagram E In conjunction with auxiliary heating boiler with a 3 port mid position valve system – reheat control via solar controller. 3A fused supply N L L N 2 1 N 1 5 6 2 3 Boiler terminal strip PL N 4 4 SL Programmable room stat L N 1 2 6 3 N 3 9 5 Terminal box (supplied) 6 7 8 9 10 11 12 N 7 4 N L N CH pump N Link Link 8 1 2 3 Cylinder auxiliary controls GY N GY Solar o/temp cutout 2 N PE L N 1 Solar controller L 1 2 Solar o/temp cutout 20 Not used BL BR GR DHW 2 port valve 9 8 OR 7 BL WH GR OR 3 port mid position valve Solar pump 11 12 A1 N 5 N A2 N A3 N Solar differential controller See fig 17 T1 T2 T4 T5 A1 N 11 12 Solar pump T7 13 14 15 16 9.0 Installation of solar differential temperature controller The solar differential temperature controller is fitted on the solar hydraulic pump station. It must be removed from the moulded housing for access to electrical connections. Fig. 23 240 Volts Fig. 23 Fuse rating T 2A L 250V FUSE 240 Volts PE General connection guidelines. Flexible cables must be secured against straining by suitable strain relief bushes or devices. The controller must be earthed. 230/240V~ connections For 230V connections you must follow the following points: The mains supply to the controller should be via a suitable double pole isolating switch with a contact separation of at least 3mm in both poles. The controller is pre-wired to the solar coil over-temperature cut-out. Mains connection should be into the lower solar controls terminal box such that power is interrupted to the controller and hydraulic station in the event of the cylinder overheating (see Fig. 16 Block wiring diagrams and Fig 18). Controllers are intended for the operation in 230/240V~ /50Hz mains. Any motorised valves connected must be suitable for this voltage. A2 A1 L T1 T3 T4 T5 T6 T7 Fuse rating T 2A L 250V PE PE PE PE A3 N A2 N A1 N N L M1 M2 M3 M4 M5 M6 T2 T3 T4 T5 T6 T7 T1 Terminal PE Reference PE N N N N M1 M2 M3 M4 M5 M6 M7 Description Low Voltage (SELV) connections Mains 230/240V connections L 240V Supply Live Terminal N reference Terminal Reference L A1 N LN Description 240V Supply Neutral Description 240V Supply Live Switched Output to Solar Pump 240V Supply Live Solar Pump Neutral A1N 240V Supply Neutral 240V Supply Neutral Switched Output to Solar Pump Switched Output - Live 2 (For East West Array or Dual Tanks) A2 NA1 Solar Pump Neutral Switched Output to Solar Pump Switched Output 2 Neutral N A2N A3 N A2 N A3 N N PE A3 PE & M1 T1 N T1 T2 & M1 & M2 PE T2 & M2 T3 & M3 M1 T3T1& &M3 T4 & M4 M2 T4T2& &M4 T5 & M5 M3 T5T3& &M5 T6 & M6 connection for diverter valve (E/W array only) Solar Pump Live Neutral Switched Output - Live 3 (For Auxiliary Heat Control) Switched Output 2 Neutral Switched Output - Live 2 (For East West Array or Dual Tanks) Switched Output 3 Neutral Switched Output – Live 3 (For Auxiliary Heat Control) Switched Output 2 Neutral Earth Connection Switched Output 3 Neutral Switched Output - Live 3 (For Auxiliary Heat Control) Earth Connection Temperature Sensor Collector 1 (Tc1) Switched Output 3 Neutral Temperature Sensor Collector 1 (Tc1) Temperature Sensor Storage Tank 1 (Ts1) Earth Connection Temperature Sensor Storage Tank 1 (Ts1) Temperature Sensor Collector 2/Storage Tank 2 (Tc2 / Ts2) Temperature Sensor Collector 1 (Tc1) Temperature Sensor Collector 2 (E/W array only) Temperature Sensor Collector Return (Tret) Temperature Sensor Storage Tank 1 (Ts1) Temperature Sensor Collector Return (Tret) Temperature Sensor for 2nd temperature differential controller (Tth) Temperature Sensor Collector 2/Storage Tank 2 (Tc2 Temperature Sensor for auxiliary heat/ Ts2) source T6T4& &M6 M4 Frost Protection or 2nd temperature differential controller Frost Sensor Protection or 2nd temperature Temperature Collector Return (Tret) differential controller T7 & M7 T7T5 & &M7 M5 Flow Meter (Optional) Flow Meter (Optional) Temperature Sensor for 2nd temperature differential controller (Tth) T6 & M6 Figure Fig. 24 18 T7 & M7 Frost Protection or 2nd temperature differential controller Flow Meter (Optional) Hydraulic Station Fig. 24 Hydraulic Station Solar differential controller The neutral terminals (N) are electrically connected and are not switched. L N E L N E 20 20 M7 Low Voltage (SELV) connections Mains 230/240V connections All earth wires must be connected to terminals marked with PE. Any bare wire earth conductors must be sleeved with green/yellow sleeving. All switch outputs (A1, A2 and A3) are 230/240V~ closers. If potential-free contacts are needed, appropriate accessories are required. T2 FUSE In the case of all connecting wires the outer sheath should be stripped back to 80mm. The individual conductor sleeving should be stripped approx. 10mm. Cables are inserted in the controller through knockouts provided in the controller backplate. A3 Double pole isolating switch Double pole 230V/240V~ isolating switch Mains supply Solar differential Solar coil controller over-temp cut-out Electrical connection o 9.0 Installation of solar 1. Always disconnect from the mains 2. The connection all electrical c controller cover. Theofelectrical installa located on the backplateand of the co current Wiring Regulations be car terminals on the right side of the t electrician. low voltage connections (temperat transmitters). the 2. The connectionThe of allterminals electricaloncable terminal block are for of 230/240 V~ located on the backplate the contro INSTALLATION Always disconnect from the mains before opening the controller cover. The electrical installation must conform to all current Wiring Regulations and be carried out by a competent electrician. PE 9.3 1. Always disconnect from the ma controller cover. The electrical ins currentElectrical Wiring Regulations andover be 9.3 connection electrician. Figure 17 Electrical connection overview The connection of all electrical cables is to the terminal block located on the backplate of the controller. The terminals on the right side of the terminal block are for extra low voltage connections (temperature sensors and flow transmitters). The terminals on the left side of the terminal block are for 230/240 V~ connections. Installation of so terminals on the right side of the term lowGeneral voltage connection connections guidelines. (temperature 3. In the case all connecting transmitters). Theofterminals on thewire lef be stripped backforto230/240 80mm. The ind terminal block are V~ con should be stripped approx. 10mm. General connection guidelines. 3. In caseare of all connecting th 4. the Cables inserted in thewires contro be provided stripped back 80mm. The individ in thetocontroller backplat should be stripped approx. 10mm. 5. Flexible cables must be secured 4. Cables inserted the controller suitableare strain relief inbushes or devi provided in the controller backplate. 6. The controller must be earthed. 5. Flexible cables must be secured agai suitable strain relief bushes or devices. 9.4 230/240V~ connection 6. The controller must be earthed. 1. For 230V connections you must 9.4 230/240V~ 2. The mains supply connections to the controll double pole isolating switch with a 1. For 230V connections you must foll least 3mm in both poles. Addition wired via the solar coil over tempe 2. The mains supply to the controller s power is interrupted to the contro double pole isolating switch with a con the event of the cylinder overheati least 3mm in both poles. Additionally wired via the solar coil over temperatu 3. Controllers are intended for the power is interrupted to the controller /50Hz mains. Any motorised valves the event of the cylinder overheating ( for this voltage. 3. Controllers are intended for the op 4. All earth wires must be connect /50Hz mains. Any motorised valves co PE. Any bare wire earth conducto for this voltage. green/yellow sleeving. 4. All earth wires must be connected t The bare neutral (N) are ele PE.5.Any wireterminals earth conductors m not switched. green/yellow sleeving. 6. Allneutral switchterminals outputs (A1, A2 electr and A 5. The (N) are contacts are needed notpotential-free switched. required. 6. All switch outputs (A1, A2 and A3) potential-free contacts are needed, app required. Solar coil over-temp cut-out 230V/240V~ Mains supply © Baxi Heating UK 2012 © Baxi Heating UK 2012 21 Commissioning DO NOT SWITCH ON THE SOLAR DIFFERENTIAL CONTROLLER, AUXILIARY HEAT SOURCE OR IMMERSION HEATER(S) UNTIL THE UNIT IS FULL OF WATER. Filling and flushing the Megaflo Eco SolaReady Ensure that all fittings and immersion heaters are correctly fitted and tightened. An immersion heater key spanner is provided to aid in tightening the immersion heater(s). Open a hot tap furthest from the Megaflo Eco SolaReady. Open the isolating valve on the 3 Bar Pressure Reducing Valve by turning the blue handle on the stop cock (if fitted in this position) so that it lies parallel to the direction of flow. Open the mains stop cock to fill the unit. When water issues from the tap, allow to run for a few minutes to thoroughly flush through any residue, dirt or swarf, then close tap. Open successive hot taps to purge any air from the system. Check all connections for leaks and rectify as necessary. T he Strainer housed within the 3 Bar Pressure Reducing Valve should be cleaned to remove any debris that may have been flushed through the main supply pipe. Refer to Maintenance, page 37 for instructions on how to do this. Check the operation of the Safety Valves COMMISSIONING Slowly, manually open (turn black knob on end counter-clockwise), for a few seconds, the Temperature and Pressure Relief Valve (T&P Valve) situated on the Megaflo Eco SolaReady unit (see Figure 1, page 5). Check water discharged runs freely away through the tundish and discharge pipework. Close valve, ensure water flow stops and valve reseats correctly. Repeat for the 8 Bar Pressure Relief Valve (see Figure 1, page 5). NOTE: The water discharged may be very hot Direct Units Switch on the electrical supply to the immersion heater(s) and allow the unit to heat up. Check that the thermostat operates correctly. A storage temperature of approx. 60ºC is recommended. If necessary the temperature can be adjusted by inserting a flat bladed screwdriver in the adjustment knob on top of the immersion heater thermostat and rotating clockwise (see Figure 13, page 17). The full adjustment represents a temperature range of between 12º and 68ºC. Check that no water is discharged from either the Expansion Valve or Temperature and Pressure Relief Valve during the heating cycle. Indirect Units Fill the indirect (primary) circuit following the boiler manufacturer’s commissioning instructions. To ensure the primary heating coil in the Megaflo Eco SolaReady is filled the 2-port motorised valve (supplied) should be manually opened by moving the lever on the motor housing to the MAN OPEN position. When the primary circuit is full return the lever to the AUTO position. Vent any trapped air by opening the air bleed. Switch on the boiler, ensure the programmer is set to Domestic Hot Water. Allow the Megaflo Eco SolaReady unit to heat up and check that the indirect thermostat and 2-port motorised valve operate correctly. A storage temperature of approx. 60ºC is recommended. If necessary the temperature can be adjusted by inserting a flat bladed screwdriver in the adjustment knob (located on the front of the thermostat mounting bracket see Figure 16, page 23) and rotating clockwise to increase the temperature or counter clockwise to reduce the temperature. The minimum thermostat setting is 12ºC. The adjustment range on the combined thermostat and thermal cut-out is 12°C-68°C Check that no water is discharged from either the Expansion Valve or Temperature and Pressure Relief Valve during the heating cycle. 22 Commissioning of solar primary system Air Test An air test may be used on the solar primary pipework to detect any gross leakage prior to flushing and filling with solar heat transfer fluid. Pressurise the system to a maximum of 1 bar to check for leaks. Ensure that the solar expansion vessel pre-charge pressure has been set prior to flushing and filling. Flushing and Filling the pipework Before the system is commissioned the pipework must be flushed to remove any contaminants. This must be done using the solar heat transfer fluid as it will be impossible to fully drain all parts of the system. Figure 19 Fig. 19 8.0 45° 4 5 8.1 Fig. 19 1 45° 4 3 5 2 1 8.2 7 8.2 7 Figure 20 Read at top of float Fig. 20 Turn the slot of the flow meter adjusting screw (Fig. 19 Item 6) in the return vertically to open the flow limiter (Fig. 19 Item 7). Filling pump F lush the solar primary pump by pumping the fluid into the system via the fill and drain valve on the safety group (Fig. 19 Item 1). Filter 3 9. Close right hand isolating valve (do 10. When satisfied that all pipework a 9 o’clock position). Flush solar primar been thoroughly flushed, the system c via the fill and drain valve on the safet fluid ensure this is filtered before resystem. (see Fig. 20). Use a suitable co volume to collect the fluid. Solar fluid When satisfied that all pipework and component parts have been thoroughly flushed, the system can be filled. Fig. 21 Solar fluid 1 1 2 4. Turn the slot of the adjusting screw 2. Connect the flushing pipes to the fi return so the slot is vertical to open safety group (Fig. 19 Item 1) and to th flow meter (Fig. 19 Item 2). 5. Turn the left hand isolating valve wi the flow (Fig. 19 Item 4) in the direct 3. Open the fill & drain valves. (to a 45° position) to open the non- 3 Filter Fig. 21 Flushing and Filling the pi 2. Connect the flushing pipes to the f safety group (Fig. 19 Item 1) and to t 1. Before the system is commissioned flow meter (Fig. 19 Item 2). flushed to remove any contaminants. the solar heat transfer fluid as it will 3. Open the fill & drain valves. drain all parts of the system. 4. Turn the slot of the adjusting screw 6. Ensure that the right hand isolating return so the slot is vertical to open thermometer in the return (Fig. 19 Ite the dot on the thermometer bezel b 5. Turn the left hand isolating valve wi the flow (Fig. 19 Item 4) in the directi 7. Turn the slot of the flow meter adj (to a 45° position) to open the non-r 6) in the return vertically to open the 7). 6. Ensure that the right hand isolating thermometer in the return (Fig. 19 Ite 8. Flush the solar primary pump by p the dot on the thermometer bezel be system via the fill and drain valve on Item 1). 7. Turn the slot of the flow meter adju 6) in the return vertically to open the 9. Close right hand isolating valve (do 7). 9 o’clock position). Flush solar primar via the fill and drain valve on the safe 8. Flush the solar primary pump by pu fluid ensure this is filtered before re system via the fill and drain valve on t system. (see Fig. 20). Use a suitable c Item 1). volume to collect the fluid. Filling pump Close right hand isolating valve (dot on thermometer bezel at 9 o’clock position). Flush solar primary pipework and collector via the fill and drain valve on the safety group. If reusing flushed fluid ensure this is filtered before reintroducing into the system. (see Fig. 20). Use a suitable container of a large enough volume to collect the fluid. our an amount of the solar heat transfer fluid into the filling P pump. Read at top of float Flushing and Filling the p 2. Ensure that the solar expansion ves 1. Before the system is commissioned has been set prior to flushing and fillin flushed to remove any contaminants. the solar heat transfer fluid as it will drain all parts of the system. COMMISSIONING nsure that the right hand isolating valve with integral E thermometer in the return (Fig. 19 Item 5) is open indicated by the dot on the thermometer bezel being at the top. 6 2 Fig. 20 1. An air test may be used on the pip leakage prior to flushing and filling wit 8.0 Commissioning of Pressurise the system to a maximum 1. An air test may be used on the pip leakage prior to flushing and filling wit Pressurise the system to a maximum 6 Open the fill & drain valves. urn the left hand isolating valve with integral thermometer T in the flow (Fig. 19 Item 4) in the direction indicated by the arrow (to a 45° position) to open the non-return valve. Air Test 2. Ensure that the solar expansion ve 8.1 Air Test has been set prior to flushing and fillin onnect the flushing pipes to the fill & drain valve on the C safety group (Fig. 19 Item 1) and to the fill & drain valve on the flow meter (Fig. 19 Item 2). Turn the slot of the adjusting screw (Fig. 19 Item 3) in the return so the slot is vertical to open the non-return valve. Commissioning of 3 10. When satisfied that all pipework a been thoroughly flushed, the system c © Baxi Heating UK 2012 2 © Baxi Heating UK 2012 23 Solar fluid lose the fill and drain valve - safety group (Fig. 19 Item 1) C and the fill and drain valve - flow meter (Fig. 19 Item 2) and pressurise the pump slightly prior to filling the system. If an electric pump is being used follow the instructions with the pump. Figure 21 Fig. 21 1 Fully open the fill and drain valve on the safety group (Fig 19, item 1) and pump fluid into the system. Whilst pumping, open the flow meter drain valve (Fig 19, item 2) slightly to allow the air to vent out of the system. When the pump is down to approximately 1 litre isolate the fill and drain valves. Vent the filling pump and refill with solar heat transfer fluid. 3 e-pressurise the filling pump and repeat the steps above until fluid is seen R discharging from the drain valve on the flow meter. (Fig 19, item 2). Close the drain valve. ontinue filling at the fill and drain valve on the safety group (Fig 19, item 1) until C the system pressure reaches 2 bar. 2 At this point the circulation pump should be vented. If the system pressure drops, repressurise using the procedure above. After venting the pump and checking that the system pressure is 2 bar, close the fill and drain valve on the safety group (Fig. 19 Item 1), and check the system for leaks. © Baxi Heating UK 2012 COMMISSIONING Turn the left hand isolating valve (Fig 19, item 4) back 45° clockwise until the dot on the bezel is back at 12 o’clock. T urn the right hand isolating valve (Fig. 19 Item 5) back 90° clockwise until the dot on the bezel is back at 12 o’clock. Turn the slot of the adjusting screw (Fig. 19 Item 3) back to the horizontal position. Commissioning of hydraulic station Ensure the solar primary system is free from air Switch on the power supply to the solar differential temperature controller. anually switch the circulation pump ON and OFF via the solar differential M temperature controller (see section 11.5) to pump fluid around the solar primary system. Figure 22 Fig. 27 Turn the pump off and open the airbleed screw on the air separator (Fig. 22 Item 1). 2 Bleed any air from the air separator. If the system pressure drops top up by opening the fill and drain valve (Fig. 27 Item 2) on the safety group and pumping in more solar fluid to restore the pressure. This must be repeated until the pressure remains stable. Setting the system pressure During commissioning, the system pressure should be 0.7 bar above the static pressure (1 metre height differential equals 0.1 bar). However, it must be at least 1.5 bar and no higher than 2.2 bar. etermine the system pressure when the system is cold (20°C). This should be D recorded on the Commissioning Record Sheet. If the pressure is too low you should pump additional heat transfer fluid into the system; the fill & drain valve on the safety group (Fig. 22 Item 2) needs to be opened for this purpose. When system pressure is correctly set, ensure the fill and drain valve is closed and remove filling hose from safety group. 24 1 Commissioning of solar differential temperature controller On completion of commissioning the Solar Controller, note all the required information in the Solar Commissioning Record Sheet on page 35. Fig. 2823 Figure Diagram of all possible symbols 11.0 Main Menu Main Menu To make the operation of the controller clear, operating and display functions are divided into 4 main menus. Info On completion of commissioning the So required information in the Solar Comm the end of Section 12. 11.1 1 Sub-Menu Indication of current measured values. Indication of system condition. Indication of error messages. Indication of operating hours and energy productivity (if installed). Manual operation 2 3 System temperature could be extremely high. 5 4 Basic adjustment Information about basic adjustment for system function. To carry out any changes to this menu it must be selected within the first minute after switching the appliance on. Changes to p (parameters) Basic adjustment Control Buttons 2 Scroll upwards 3 Scroll left or exit to main menu 4 Scroll downwards or select required main menu Control Buttons (see Fig 23) 5 Item 4 - Scroll down - selects the menu option currently flashing and gives access to the sub-menu Scroll right or select to edit function Example Screen - Programming Menu Item 5 - Scroll right - moves right through the main menu options Information system funct changes to t selected with switching the IMPORTANT in this menu by a compet engineer. Each active menu is shown in the upper corresponding icon. 11.2 Item 2 - Scroll upwards - no function in this menu Control Button When in the Main Menu the control bu Item 2 - Scroll upwards- no function in Item 3 - Scroll left - moves left th options Item 4 - Scroll down - selects the m flashing and g menu Item 5 - Scroll right - moves right t options Once the sub-menu has been accessed, becomes static and the button functions Once the sub-menu has been accessed, the flashing symbol becomes static and the button functions are then as follows: Item 2 - Scroll upwards- moves up thr functions of t Item 3 - Scroll left - return to ma Item 4 - Scroll down - moves down functions of t Item 5 - Scroll right - select to edit The selected available for e required valu Use 5 to OK Item 2 - Scroll upwards- moves up through the available functions of the sub-menu Item 3 - Scroll left - return to main menu Item 4 - Scroll down - moves down through the available functions of the sub-menu Item 5 - Scroll right - select to edit the function displayed. The selected function will flash if it is available for editing. Use 2 to increase the required value and 4 to reduce it. Programming COMMISSIONING WARNING - During manual operation there is no automatic regulation of the system. Temperature control is isolated. Item 3 - Scroll left - moves left through the main menu options Indication of Indication of Indication of Indication of productivity ( Manual operation Switching on and auxiliary WARNING there is no a system. Temp System temp extremely hi 1 Switching on and off connected pumps and auxiliary devices. When in the Main Menu the control button functions are as follows: Info Display Screen Changes to programmable values (parameters). Each active menu is shown in the upper line of the display by its corresponding icon. Main Menu To make the operation of the controlle functions are divided into 4 main menus Programming IMPORTANT: Adjustment and changes in this menu must only be carried out by a competent installer or service engineer. Commissioning of so © Baxi Heating UK 2012 Use 5 to OK. 25 Commissioning of solar controller Info Menu (Fig 24) In this menu mode all measured values and operating states are shown. If the values are marked as “reset possible” they may be reset as shown in figure 24. Fig. Fig. 29 29 Fig. 29 Fig. 29 Figure Fig. Fig. 29 Fig. 29 29 Fig. 29 Fig. 29 24 Fig. 29 Fig. 29 COMMISSIONING Fig. 29 Indication Indication e.g. Indication e.g. e.g. Indication e.g. Indication Indication Indication Indication e.g. e.g. 75 °C Indication 75 °C e.g. Indication 75e.g. °Ce.g. Indicatione.g. e.g. 75 °C Indication 75ºC e.g. 75 °C 75 °C min min 75 °C 12°C min75 °C 12°C Indication 12°C 75 °C 75 °C e.g. min Indication 12°C min. 12ºC min 75 °C e.g. min min 12°C max 12°C max 12°Cmin max min 105°C 105°C 12°C min 105°C 75 °C 12°C max 12°C max. 105ºC min 105°C 75 °C max max 12°C max 52 °C 105°C 52 °C 105°C max 105°C 52 °C min 105°C max max 12°C 52 °C 52ºC 105°C min 105°C max min 12°C min 52 °C 52 °C 105°C 40°C 52 °C min 40°C 52 °C 40°C max min 52 °C min. 40ºC 52 °C 105°C 40°C min max min 52 °C min 40°C 105°C 40°C max max 40°Cmin max 65°C 65°C 40°C min 65°C min 52 °C max. 65ºC max 40°C min 40°C 65°C 52 °C max max 40°C max 65°C 65°C max 60°C 65°C 60°C min65°C 60°C 60ºC max 40°C max 65°C min 60°C max 65°C 40°C 65°C 60°C 60°C 60°C 60°C 60ºC 60°C max60°C 60°C 65°C 60°C max 60°C 60°C 65°C 60°C 60°C 60°C 60°C 35°C 35ºC 35°C 60°C 35°C 60°C 60°C 35°C 60°C 60°C 60°C 35°C 35°C 35°C 25 °C 25 °C 35°C 25ºC 25 °C 60°C 35°C 25 °C 60°C 35°C 35°C 25 °C °C 25 25 °Ch 1234 1234 h 1234 25h °C 1234 35°Ch 25 °C 1234 35°Ch 25 °C25 °C 927 1234kWh 1234 hh 1234 h 927 927kWh kWh 1234 h 927 kWh 25 °C 1234 h 927 25 kWh °C 1234 h h © Baxi 927 kWh kWh 26 ©1234 Baxi Heating Heating UK UK 2012 2012 26 927 kWh © Baxi Heating UK 2012 26 927927 kWh 1234 h © Baxi Heating UK 2012 26 927 kWh 26 26 26 1234©hBaxi Heating UK 2012 © Baxi Heating UK 2012 927 kWh © Baxi Heating UK 2012 26 927©kWh Baxi Heating UK 2012 26 927 kWh 26 927 kWh © Baxi Heating UK 2012 © Baxi Heating UK 2012 26 © Baxi Heating UK 2012 26 © Baxi Heating UK 2012 26 © Baxi Heating UK 2012 11.0 11.0 Commissioning Commissioning 11.0 Commissioning 11.0 Commissioning 11.3 Menu “Info” 11.3 Menu “Info” The to The icon icon will will flash, flash,press press to 11.0 Commissioning 11.3 “Info” Comm 11.0 11.0 Menu Commissioning The willtoflash, press sub function. to up oricon down theorrequired Press to scroll 11.0 Commissioni select function. by InIn this menu mode all Press select the the function. Reset or by pressing pressing Press orReset to scroll to scroll this menu mode all measured measured vv Menu “Info” select thewill function. Reset pressing Press or bysub totoscroll In11.3 this menu mode all measured v The icon flash, press up or down the required function. are shown. for are11.0 shown. Commissioning orto for required up or to the sub function. up or down todown the required sub function. Press to function. scroll are shown. 11.3 Menu “Info” or forby pressing or to or the required sub select thedown function. Reset Theupicon will flash, press to In this menu mode all measured 11.3 Menu “Info” 11.3 Menu “Info”v 11.0 Commissioning increase/decrease values. Press increase/decrease values. Press The icon willicon flash,will press The flash, press to Iftothe values are marked as “reset Press or to Press or to scroll scroll Press or to scroll up up or or down down to to the the required required sub sub function. function. up or down to theorrequired sub function. Press to scroll values marked 11.3 Menu “Info”as If the the values are are marked as“reset “reset up or to required sub function. increase/decrease Press orvalues. to scrollto Ifare Thedown icon willtheflash, press shown. or forPress select the function. Reset by pressing If the values marked as “resetv In this menu are mode all measured and appears, and ok? appears, select the function. Reset byReset pressing in the way: In this menu mode all measured Menu “Info” select the function. bytopressing in11.3 the following following way: In this menu mode all v ok? The icon willtofunction. flash, press andor appears, up down the values. required sub function. select the Reset by pressing increase/decrease Press In this menu mode all measure in the following way: 11.0 Commissioning are shown. or for ok?or Ifaretheshown. values are marked as “reset for are shown. orpress for 11.3 Menu “Info” Press or to scroll Choose the value with buttons select thewill function. Reset by pressing are following shown. In this menu mode all measured The icon flash, to or for Choose the value with buttons v and press to confirm and increase/decrease Press in the way: 11.0 Commissioning press ok? appears, tovalues. confirm and ok? If the values are marked as “reset Choose the value with buttons increase/decrease values. Press ok? increase/decrease values. Press If the values are marked asmarke “resetv are shown. press to confirm and up or down to the required sub function. or for Press or Reset took? scroll select the function. by Press pressing increase/decrease values. If the values are In this menu mode all measured disappears. and appears, Reset value by means of the butto in the following way: If the values are marked as “re disappears. Reset value by means ofbuttons the butto ok? and appears, 11.3 Menu “Info” Choose the value with in the following way: andwill appears, ok? disappears. The icon flash, press to Reset value by means of the butto increase/decrease values. are shown. press to confirm and function. up or down the required sub in the following way: ortook? forPress and appears, in the following way: as “reset ok? If the values are marked ok? Message “OK?” confirm with 11.3 Menu “Info” Message “OK?” confirm with Choose the value with buttons select thewill function. Reset Press byand pressingto and appears, In this value menu mode all of measured v disappears. The flash, press pressicon tovalues. confirm Reset by means the butto increase/decrease Choose the value with buttons the following way: Message “OK?” with Ifin the values areconfirm marked asbuttons “reset press ok? to confirm and ok? Choose thewith value with Choose the value press tobyconfirm and ok? are shown. or for press to confirm andok? select the function. Reset pressing and appears, In this menu mode all measured v disappears. Reset value by means of the butto ok? in the following way: ok? Message “OK?” confirm with disappears. Reset value by means the butto Choose the value withofbuttons press confirm and ok? Reset areReset disappears. increase/decrease Reset value by of means disappears. value means the bo shown. or to values. forPress ResetIf the values areby marked as “reset Meaning Meaning Message “OK?” confirm with the value withofbuttons possible? Reset Choose disappears. Message “OK?” confirm with Reset value by means the butto and appears, press ok? to values. confirmPress and ok?possible? Meaning increase/decrease the following possible? Message “OK?” confirm with Ifin the values are way: marked “reset Message “OK?”as confirm Reset Reset value by means of the butto disappears.Meaning and appears, Message “OK?” confirm with in the following way: Indication current possible? Choose the value with buttons Indicationof ofok? currentcollector(s) collector(s) Reset pressof current to confirm and ok? Reset temperature. Indication collector(s) temperature. Meaning Meaning Reset Reset Message the “OK?” confirm with possible? possible? Meaning temperature. No Choose value withofbuttons Meaning NoReset disappears. Reset value by means the butto Reset press toMeaning confirm and ok?possible? possible? Indication of current Meaning collector(s) No possible? Reset possible? temperature. Meaning disappears. Reset value by means of the Indication of current current collector(s) possible? Indication of collector(s) No Message “OK?” confirm with of minimum collector(s) Indication of minimum collector(s) Indication of current collector(s) temperature. Reset temperature. Indication of current collector(s) temperature. Meaning Indication of minimum collector(s) Indication of current collector(s) temperature. No possible? Message “OK?” confirm with No Indication of current collector(s) No Resettable to current temperature. temperature. temperature. temperature. Resettable current temperature. No Yes Indication oftocurrent collector(s) Yes temperature. Indication oftominimum collector(s) Resettable current temperature. Yes No temperature. Reset No temperature. Meaning Indication of collector(s) No Indication oftocurrent minimum collector(s) possible? Indication of minimum collector(s) Resettable current temperature. Indication of minimum collector(s) Yes Indication of minimum collector(s) temperature. Reset temperature. temperature. Indication of maximum collector(s) Indication of maximum collector(s) Meaning Indication of minimum collector(s) temperature. Resettable to current temperature. No Yes possible? Resettable tomaximum current temperature. temperature. Resettable current temperature. Indication ofto collector(s) temperature. Yes Indication of minimum collector(s) temperature. Yes Resettable tocurrent current temperature. temperature. Indication of collector(s) Resettable to current temperature. collector(s) Yes temperature. Resettable tominimum current temperature. Yes temperature. Resettable to current temperature. YesYes temperature. Indication oftomaximum collector(s) Resettable current temperature. Resettable to current temperature. Yes Indication oftocurrent Yes minimum collector(s) Resettable currentcollector(s) temperature. temperature. No Yes Indication of maxiimum collector(s) Indication oftomaximum maximum collector(s) temperature. Indication of collector(s) Resettable current temperature. Yes Yes Indication of maximum collector(s) temperature. Resettable to current temperature. Resettable tocurrent current temperature. temperature. No Indication of temperature storage Indication of current temperature storage Yes Indication of maximum collector(s) temperature. Resettable tocurrent current temperature. tank(s). temperature. Resettable to current temperature. Indication of temperature tank(s). Indication ofto minimum collector(s)storage Yes temperature. Yes No Resettable current temperature. Indication of maximum collector(s) No Indication of maximum collector(s) Yes tank(s). temperature. Resettable to current temperature. No Yes temperature. temperature. Indication of current temperature storage Indication oftominimum collector(s) Resettable current temperature. Yes Resettable to current temperature. Indication oftominimum maximum collector(s) Resettable current temperature. Indication of current temperature tank(s). temperature. Indication of temperature Yes Indication of minimum temperature No No Yes Indication of of current temperature temperature storage storage temperature. Indication Resettable current temperature. storage tank(s). storage Indication oftocurrent minimum temperature storage storagetank(s). tank(s). Indication of current temperature Yes tank(s). Resettable to current current temperature. temperature. tank(s). Resettable to storage tank(s). Yes No Indication current temperature storage Resettable to of current temperature. tank(s). No Yes Yes No Indication collector(s) minimum temperature Resettable current temperature. tank(s).oftomaximum Indication of current storage storage Yes No Indication oftemperature current temperature temperature. storage tank(s). Indication of minimum temperature tank(s). Indication of minimum temperature tank(s). collector(s)to current Indication of minimum temperature Resettable tomaximum currentResettable temperature. No Yes No storage tank(s). Yes Indication of minimum temperature current temperature storage storage tank(s). tank(s). temperature. storage Indication of temperature Indication ofmaximum maximum temperature Indication oftemperature. minimum temperature storage tank(s). tank(s). storage tank(s). Resettable current temperature. Indication ofto maximum temperature storage tank(s). No Yes storage tank(s). Resettable to current temperature. Resettable to current Indication of temperature Yes storage tank(s). Resettable tominimum current temperature. Indication of temperature. minimum temperature Yes Resettable to current temperature. YesYes Indication oftocurrent temperature storage storage tank(s). maximum temperature Resettable current temperature. Indication oftank(s). maxiimum temperature storage Yes Indication of minimum temperature tank(s). Resettable to current temperature. storage tank(s). Yes Resettable to current temperature. No Yes Yes storage tank(s). Resettable to current of maximum temperature Indication of storage storage tank(s). maximum temperature Resettable tocurrent currenttemperature temperature. Yes Indication of maximum temperature storage tank(s). tank(s). temperature. Displays current return temperature tank(s). Resettable to current temperature. storage Displays current return temperature Yes Indication of maximum temperature storage tank(s). No Resettable to current temperature. Resettable current Displays current returntemperature. temperature Indication ofto minimum temperature Yes storage tank(s). Yes Resettable current temperature. Indication oftomaximum temperature Yes storage tank(s). No Resettable to current temperature. NoYes Indication of maximum temperature storage tank(s). Displays current return temperature Indication oftominimum temperature Resettable current temperature. No No Displays current temperature. Yes storage tank(s). Indication oftomaximum temperature Resettable current temperature. storage tank(s). Yes DisplaysResettable current return return temperature totemperature. current temperature. storage tank(s). Displays current temperature Resettable to current Yes No Displays Cooling, current return temperature Yes Heating, Temperature difference Resettable to current temperature. Heating, Cooling, Temperature difference Yes Displays current return temperature controller T1…T6 Heating, Cooling, Temperature difference controller T1…T6 Indication of maximum temperature No Heating, cooling, temperature No *controller activated Displays current return temperature No T1…T6when *Only Onlydisplayed displayed when activated storage tank(s). differrence controller T1-T6. No No No No Cooling, Temperature Displays current returndifference temperature *Heating, Only displayed when activated Indication oftomaximum temperature Resettable current temperature. No Yes Only displayed when active. Displays current return temperature controller T1…T6 storage tank(s). No Heating, Cooling,when Temperature difference Heating, Cooling, Temperature *Resettable Only displayed activateddifference to current temperature. No Heating, Cooling, Temperature difference No Yes controller T1…T6 Temperature difference controller for heat controller T1…T6 Temperature difference controller for heat No Heating, Cooling, Temperature difference Temperature difference controller controller T1…T6 *consumer Only displayed when activated consumer *Temperature Only displayed when activated difference controller for heat current return temperature No controller T1…T6 No *Displays Only displayed when activated for heat consumer. Onlysensor displayed if Heating, Cooling, Temperature difference No *consumer displayed if temperature *Only Only displayed if temperature sensor No No * Only displayed when activated fitted supplied as controller T1…T6 Temperature difference controller for supplied heatdifference No No temperature sensor fitted (not *Displays Only(not displayed ifreturn temperature sensor current temperature fitted (not supplied asstandard). standard). Heating, Cooling, Temperature No No Heating, Cooling, Temperature *consumer Only(not displayed when activateddifference fitted supplied as standard). as standard). No controller T1…T6 Temperature difference controller for heat heat T1…T6 Temperature difference controller for *controller Only displayed if temperature sensor No * Only displayedcontroller when activated Temperature difference for heat No consumer Antifreeze sensor *fitted Only(not displayed activated No consumer supplied as standard). Antifreeze sensorwhen No Temperature difference controller for heat consumer Only displayed temperature sensor Indication of universal temperature **Indication Only displayed ififTemperature temperature sensor Antifreeze sensor. Indication of universal Antifreeze sensor of universal temperature Heating, Cooling, difference No consumer No *fitted Only displayed if temperature sensor (not supplied as standard). Temperature difference controller for heat No Indication of universal temperature fitted (not supplied as standard). measuring points (T6). measuring points measuring (T6). controller T1…T6 temperature points (T6). * Only displayed if temperature sensor No fitted (not supplied as standard). No No No *measuring Only displayed temperature sensor Antifreeze sensor pointsifwhen Heating, Cooling, Temperature difference Only displayed if(T6). temperature sensorsensor *consumer Only displayed activated fitted (not supplied as standard). No Only displayed if temperature Temperature difference controller Temperature difference controller for heat for heat No fitted supplied as Only displayed ifif temperature sensor of universal temperature *Indication Only(not displayed temperature controller T1…T6 fitted (not supplied asstandard). standard). No fitted (not supplied as standard). Antifreeze sensor consumer Antifreeze sensor measuring pointswhen (T6). fitted supplied as standard). *consumer Only(not displayed activated No Antifreeze sensor No Indication of universal temperature * Only displayed if temperature Operating hours for charging storage Only displayed ififfor temperature sensor sensor of universal temperature *Indication Only displayed temperature Operating hours charging storage No No Antifreeze sensor Indication of universal temperature measuring points (T6). tank(s). fitted (notfor supplied as standard). measuring points (T6). Operating hours charging storage fitted (not supplied as standard). tank(s). Temperature difference controller for heat No Indication of universal temperature No measuring points *Resettable Only displayed displayed if(T6). temperature sensor Operating for charging storage Resettable to h. Antifreeze sensor No *tank(s). Only temperature sensor to0hours 0points h.if Yes measuring (T6). Yes *consumer Only displayed if temperature sensor Yes fitted (not supplied as standard). No Indication of temperature Operating hours charging storage Resettable touniversal 0 h.iffor fitted (not supplied as standard). tank(s). Resettable to 0sensor h. difference controller for heat *Temperature Only displayed temperature sensor * Only displayed temperature Yes fitted (not supplied asif standard). No Antifreeze sensor measuring points (T6). tank(s). Antifreeze sensor consumer fitted (not supplied as standard). No fitted (not supplied as standard). Operating hours charging storage Indication of temperature Operating hours storage *Resettable Only displayed displayed iffor temperature sensor touniversal 0 h.iffor Indication ofcharging universal temperature *Operating Only temperature sensor Yes hours for charging storage No tank(s). Energy productivity for storage tank(s). measuring points (T6). tank(s). fitted (not supplied as Energy productivity for storage tank(s). measuring points fitted (not supplied as standard). No Operating hours forstandard). charging storage Energy productivity for(T6). storage tank(s). tank(s). No Resettable to000 h.if temperature *Energy Only displayed sensor sensor Resettable to h. productivity for storage tank(s). Resettable to h. Antifreeze sensor Yes Yes * Only iftotemperature tank(s). Yes Resettable toResettable 0displayed h. charging 0 h. Operating hours storage Yes fitted (not supplied as standard). Resettable touniversal 0 h.forsupplied Indication of Yes fitted (not as standard). Resettable to 0 h. temperature Yes Yes tank(s). Energy productivity for storage tank(s). Antifreeze sensor measuring points (T6). Yes No Operating hours charging storage Resettable touniversal 0 h.for of temperature *Indication Only displayed if temperature sensor Yes Operating for charging Energy productivity productivityhours for storage storage tank(s).storage tank(s). Energy for measuring points (T6). fitted (not supplied as standard).tank(s). Yes tank(s). Energy productivity No Resettable to 00 h. h. for storage tank(s). to *Resettable Only displayed if temperature sensor Yes Energy productivity for storage tank(s). Resettable to 0 h. to 0 h. Resettable Yes Operating hourstofor charging storage Yes fitted (not supplied standard). Resettable 0 as h. Yes Energy productivity for storage tank(s). Yes tank(s). Yes Resettable to 0 0 h. h.for charging storage Operating hours Resettable to Yes Energy tank(s). productivity for storage tank(s). Energy productivity for storage tank(s). Yes Resettable to 0 0 h. h. Resettable to Yes Resettable to 0 h. Yes Energy productivity for storage tank(s). Yes Resettable to 0 h. Energy productivity for storage tank(s). Yes Resettable to 0 h. Yes butto Commissioning of solar controller Programming Menu (Fig 25) All adjustable parameters can be checked in this menu and, if necessary, changed. The default factory setting will usually give efficient and problem free operation. However we recommend the following parameters marked * must be left at the default settings. Any change to our recommended settings will invalidate the warranty. Fig. 30 Fig. 30 Fig. Fig. 30 30 Fig. 30 11.0 C 11.0 C 11.0 C 11.0 C 11.0 MenC 11.4 Press or to scroll Press or to scroll up or down to the required sub function. Press to up or down to theor sub function. Press orrequired to scroll scroll The icon will flash, press to Press or to scroll up or down to the required sub function. The icon will flash, press to up or down to the required sub function. select the function. Reset by pressing up or the down toflash, the press required function. The to select function. Reset bysub pressing Pressicon to scroll The icon will will to or flash,orpressfor Fig. 30 Fig. 30 Figure Fig. Fig.3030 25 Press 11.4 Men 11.0 MenC 11.4 1.All 11.4 adjustable Men 1.All adjustable 11.4 Men 11.0 C necessary, chan The icon will flash, press to select the function. Reset by pressing or for up or down to theor required sub function. select the function. Reset by pressing necessary, chan 11.0 o Press to scroll Commissioning 1.All adjustable increase/decrease values. Press efficient and pr 1.All adjustable 11.0 C select the function. Reset by pressing 11.4 Men or to scroll or for increase/decrease The pressforPress to scroll to efficient and pr or flash,orvalues. 1.All adjustable necessary, chan Pressicon will up the required sub function. andor down toappears, the following necessary, chanp and appears, the following p necessary, chan efficient and pr 11.4 Men select the function. Reset Press bysub pressing increase/decrease settings. Any ch up or ok? down to the values. required function. efficient and pr toMenu “Programming” 1.All adjustable 11.0 settings. Any ch efficient and pr and appears, for the following pC 11.4 Men or invalidate the w and appears, the following p ok? press toorpress confirm icon will flash, to select the function. Reset byand pressing select theThe function. Reset by pressing Press took? scroll necessary,the chan invalidate w and ok? appears, the following 1.All adjustable parameters can bech cp settings. Any 1.All adjustable press to confirm and settings. Any ch ok? ok? increase/decrease values. Press or or down for disappears. andfacto pr select the function. Reset pressing or forbysub up to the required function.changed.efficient necessary, The default settings. Any ch invalidate the w necessary, chan 1.All adjustable press to and disappears. 2.11.4 For more in invalidate the press values. to confirm confirm andefficient ok? increase/decrease Press and appears, the following pw Men and problem free operation ok? or for increase/decrease values. Press The icon will flash, press to ok? 2. For more inf invalidate the efficient and prw press to confirm and necessary, chan Enquiries. disappears. ok? parameters and appears, the following marked settings. Any *chm disappears. ok? Enquiries. increase/decrease values. and appears, 2. For more inf the following select the function. ResetPress by pressing efficient andreco prp disappears. 2. For more settings. Any change to the Baxi ok? invalidate theinfw 1.All adjustable press to confirm and ok? 2. For more in Enquiries. settings. Any ch and appears, the following p invalidate the warranty. or and ok?for press to confirm Enquiries. ok? necessary, chan disappears. Enquiries. invalidate thechw settings. Any press to values. confirmPress and ok? disappears.increase/decrease 2. Forormore efficient and inf pr 2. For more information guidance invalidate the w Typicaland press to confirm disappears. Indication Enquiries. Value range Meaning ok? and appears, the following p Enquiries. adjustment Typical ok? Indication 2. For more in Value range adjustment Meaning disappears. settings. Any ch Typical 2.Enquiries. For more inf Typical Typical Indication Value range Meaning Indication invalidate the w Meaning adjustment Value Value range range Storage Meaning tank press to confirm and ok? adjustment adjustment T Typical 65°C* Indication Value range adjustment Meaning dT min Enquiries. Storage tank Maximum permissible co Te 15 - 65°C 65°C* MAX disappears. dT3K min Typical temperature Maximum permissible Value Indication Meaning range adjustment Meaning N 15 - 65°C Storage tank 3K MAX Typical 2. For more co in temperature Storage tank Te Storage tank – max. 65°C* Indication Value range adjustment Meaning No Te dT min 65°C* 15-65ºC 65ºC* MAX Maximum permissible dT min co 15 Maximum permissible Storage tank permissable 3K Enquiries. co MAX 15 -- 65°C 65°C T Storage tanktemperature. 65°C* temperature T min 3K MAX up or down to theok? required or sub function. increase/decrease values.forPress Fig. 30 Theflash, icon will flash, press The icon will press to Press11.4 increase/decrease values. For more information or guidance please contact the Technical Enquiries. Indication Indication Typical Value range adjustment 1565°C* dT min 3- -65°C 40K 7K MAX 3K MAX Typical 3 40K 7K Storage tank tank – switch-on 65°C* Value range adjustment Meaning Storage 3-40K Maximum permissible Storage tank 15 - 65°C 7K MAX differential (dTon). switch-on differential 3 7K temperature switch-on differential (dTon) (dTon) Storage tank Storage tank 3 -- 40K 40K 7K min Storage tank 65°C* switch-on differential (dTon) switch-on differential (dTon) Maximum differential permissible(dToff) 00:00 3 - 40K 40K 7K 15237K ---65°C switch-off Storage tank 35K 3K Typical MAX 1(2,3) temperature Value range Meaning Storage tank tank – switch-off 65°C* Storage switch-off differential adjustment 2 -- 65°C 35K 3K 3K Maximum permissible(dToff) 2-35K 15 Storage tank differential (dToff). switch-on differential (dTon) MAX Storage tank 3 40K 7K temperature Storage tank switch-off differential (dToff) max 2 -- 35K 3K switch-off differential Storage tank 2 3K 35K 3K switch-off differential (dToff) 23:59 2 - 35K Adjustment of pump (dToff) rotational Storage tank 1(2,3) switch-off (dToff) switch-on differential (dTon) 23 -- 35K 3K 40K 7K Adjustment of pump speed. 65°C* Adjustment of pump rotational Storage tank Maximum permissible 30% 100% 100% 2 15 - 65°C rotational speed. 100% = tank rotational speed speed. Storage MAX switch-on differential (dTon) 30-100% 100% temperature 3 - 40K 7K 30% 100% 100% Adjustment of pump rotational of pump rotational 2Adjustment 100% = rotational speed regulation set to 'off' 100% = rotational speed switch-off differential (dToff) min Adjustment of pump rotational 2 - 35K 3K speed.speed. 06:00 regulation set to'off' "off. "30% - 100% 100% regulation set speed. Adjustment oftopump rotational Storage tank 30% 100% = rotational speed 2 4 = rotational speed 30% -- 100% 100% 100% 2100% 100% Storage tank 100% = rotational speed speed. Time regulation set to 'off' switch-off differential (dToff) 2 - 35K 3K regulation set to 'off' 30% 100% 100% 2 Storage tank 0:00 23:59 12:00 switch-on differential (dTon) regulation set to 'off' 100% = rotational speed Time 3 40K 7K Time 0:00-23:59 12:00 Adjustment of pump rotational max 0:00 23:59 12:00 Time switch-off 2 -- 35K 3K regulationdifferential set to 'off' (dToff) 20:00 speed. 0:00 - 23:59 12:00 Time 4 30% 100% 100% 2 Time 100% = rotational speed Switch-on temperature for 0:00 -- 23:59 12:00 Adjustment of pump rotational Switch-on temperature 0:00 23:59 12:00 Time regulation set to 'off' Heating/Cooling function Switch-on temperature for Storage tank 20 -- 90°C 40°C for heating /for cooling 20-90ºC 40ºC12:00 speed. Switch-on temperature 0:00 23:59 30% 100% 40°C 100% Adjustment of pump rotational 2Heating/Cooling Heating/Cooling function switch-off differential (dToff) function 100% = function. rotational speed 20 - 90°C 20 40°C 2 - -90°C 35K 3K Switch-on temperature for speed. Switch-on Time regulationtemperature set to 'off' for 30% - 90°C 100% 100% 2 Heating/Cooling function 100% = rotational speed 20 40°C 0:00 23:59 12:00 Heating/Cooling functionfor Switch-on temperature 20 90°C 40°C Hysteresis fortoheating Heating/Cooling Hysteresis for / regulation set 'off' Hysteresis for Heating/Cooling Heating/Cooling function 90°C 10K 40°C Time Adjustment of Heating/Cooling pump rotational1-30K20 function Hysteresis 110K ---30K 10K coolingfor function. function 1 - 30K 0:00 23:59 12:00 Switch-on speed. temperature for function 1 - 30K 10K Time 30% 100% 100% 2 Hysteresis for Heating/Cooling Heating/Cooling function 100% = rotational speed Hysteresis for Heating/Cooling 20 - 90°C 40°C 0:00 23:59 12:00 function 1 10K Temperature regulation set to 'off' for function Hysteresis fordifference Heating/Cooling Switch-on temperature 1 -- 30K 30K 10K controller – hysteresis Temperature difference function Heating/Cooling function 1 --30K 10K 90°C 7K 40°C 3-40K20 Temperature difference dTHysteresis max. Not used controller. dT maxin thisfor Switch-on temperature 3 - 40K 7K Time controller. Hysteresis dT max Temperature 7K 3 --40K Hysteresis fordifference Heating/Cooling Not used in this configuration configuration. Heating/Cooling function 0:00 23:59 12:00 20 90°C 40°C Not used in this configuration controller. Hysteresis dT max 7K 31 - 40K function 30K 10K Temperature difference Not used in this configuration Temperature HysteresisHysteresis fordifference Heating/Cooling controller. dT max 7K 3 Temperature difference controller. Hysteresis dTfor max Temperature difference Switch-on temperature 31---40K 40K 7K function 30K 10K Not used this configuration controller – hysteresis Hysteresis for Heating/Cooling Not used in inHysteresis this configuration controller. dT max 2-35K20 Heating/Cooling function 7K 3 --40K 90°C 3K 40°C dT min. Not used in this function Not used in this configuration 1 - 30K 10K Temperature difference configuration. controller. Hysteresis dT max 7K 3 - 40K Not used in for this configuration Temperature difference Hysteresis Heating/Cooling TimeframeHysteresis 1(2,3): Start. 0:00-23:59 00:00 controller. dT max function 7K 3 1 - 40K 30K 10K Temperature difference Not used in this configuration controller. Hysteresis dT max 7K 3 - 40K Not used in this configuration Timeframe 1(2,3): Stop 0:00-23:59 23:59 Temperature difference controller. Hysteresis dT max 7K 3 - 40K Not used in 1(2,3): this configuration Timeframe Start 0:00-23:59 06:00 for the collector function. Storage tank temperature Maximum permissible Meaning (dTon) switch-on differential Storage tank Maximum permissible temperature 15 - 65°C Storage tank switch-on differential (dTon) temperature 2 10 K dT max 7K min. dT 00:00 max dT 1(2,3) 7KK 10 dT max 7K max. 23:59 1(2,3) dT max 7K min. 06:00 4 max. 20:00 4 Timeframe 1(2,3): Stop for the controller function. 0:00-23:59 dT min Temperature difference No No Indication co 00:00 min 3Kcontroller. Hysteresis dTTim m N 1(2,3) 00:00 Te Not used in this configurati Indication dT min Ti min 1(2,3) Ti min co 3K 00:00 00:00 T minTimeframe 1(2,3): Start No T 1(2,3) max dT min 1(2,3) 00:00 co Tim 23:59 3K max 1(2,3) Te Indication N 1(2,3) dT min Ti min 23:59 co Ti 3K max 1(2,3) 00:00 Ti max Timeframe 1(2,3): Stop No 23:59 1(2,3) T 23:59 min max 1(2,3) Ti min 1(2,3) T 23:59 00:00 co 06:00 Tim dT minmin Ti min 1(2,3) co 4 3K Ti co 06:00 max 00:00 N Tim 4 Timeframe 1(2,3): Start for min 23:59 Tim 1(2,3) mincollector function co 06:00 1(2,3) co 06:00 Ti T min max Tim 4 max 4 T min co 06:00 23:59 St Tim 20:00 max Ti 4 00:00 max 1(2,3) 4 Timeframe 1(2,3): Sto Tim 20:00 min 1(2,3) 23:59 Tim 4 Stop for the collector functio max co 06:00 Tim 1(2,3) max Sto 20:00 4 Sto Tim 20:00 Ti max min 4 4 T St 20:00 max co 06:00 Tim 4 4 23:59 min Tim max co 1(2,3) 06:00 Sto 20:00 4 4 Tim max Ti St 20:00 min Tim co 4 06:00 max Sto 4 20:00 4 COMMISSIONING Indication Indication Indication Indication max 65 °C max Indication 65 °C Indication max. max 65ºC max 65 °C 65 °C max dT max Indication max 65 7 K°C 65 dT°C max Indication 7 K7K max dT max. dT 65max °C dT max 7 K 7 K dTdT max max max 7dT K 7 min K°C 65 3 K Indication dT min max dT min. 3K 3 K°C dT 65max dT 7 min K dT min dT 3min K 33K K min dT max 3 K 7Min max 100 65 °C dT max Min min. 100 dT min 7100 K 3Min K Min Min 100 100 dT min 100 Min 3100 K dT max 13:21 13:21 7 K dT min 13:21 3Min K 13:21 100 13:21 13:21 40 °C 40ºC Min 13:21 dT min 40 °C 100 40 3°C K Min 40 °C 100 13:21 40 °C 40 °C dT dT 10 K dT 10 13:21 10dT K K Min 10 K 100 40 °C 13:21 dT dTK 10 10dT K °C dT max. 7K dT40 max 10 K dT 7K max 7K 13:21 40 °C dT max dT 7KK 10 dT max dT7K max dT 7Kmax dT 10 K 40 °C dT min.7K dT3K max 20:00 4 20:00 © Baxi Heating UK 2012 © Baxi Heating UK 2012 © Baxi Heating UK 2012 © © Baxi Baxi Heating Heating UK UK 2012 2012 © Baxi Heating UK 2012 27 Tim St Commissioning of solar controller Fig. 31 For commissioning, service and test purposes the solar primary system can be manually operated. For this purpose the switch outputs may be disconnected or connected. Press Fig. 31 Manual Operation Menu (Fig 26) Fig. 31 Fig. 31 Press Figure 26 Press or up or down to the required sub function. 11.0 or to scroll The icon or will flash,topress scroll up or down to theorrequired sub function. Press to scroll Fig. 31 up or down to the required sub function. select the function. Reset To avoid inadmissible operating states this mode of operation changes to “Info” after approximately 8 hours and the automatic regulation is activated again. NOTE: Exiting this menu will automatically return the system to normal automatic operation. Indication Meaning Indication Meaning by pressing Value range Value range Switching on/off switch output A1 (solar Meaoutput ning A1 (solar circulation hand. Switchingpump) on/offbyswitch MeMeaning aning Indication InIndication dication circulation pump) by hand. Switching on/off switch output A1 (solar circulation pump) by hand. Switching on/off switch output A1 Value range 0 = off 1 = on0 = off (solar 1 = on 0 = off Switching circulation pump) byon/of hand.switch output A1 COMMISSIONING Switching on/off switch output A2 by hand. (solar circulation pump) Not used in this configuration. 0 = off 1 = on Switching on/offoutput switch output A2 by hand.0 = off Switching on/off switch A3 (cooling, on/off switch output A1 (solar 1 = on nd NotSwitching used intemperature this configuration. thermostat or 2Switching difference on/off switch output A3 circulation by A3 hand. Switching on/off switch output (cooling, controller function) bypump) hand. 0 = off nd (cooling, thermostat or 2 temperature 1 = on thermostat or 2nd temperature difference Switching on/off switch output A3 (cooling, controller function) by hand. controllerdifference function) by hand. 0 = off thermostat or 2nd temperature difference 1 = on controller function) by hand. 0 = off 3 3 3 Value range Value range 0 = off 1 off = on 0= 1 = on A2 by0hand. = off Val0ue= roff ange Not used in this configuration 1 = on 1 = on = off 00 = off == off on 11 =0on 1 = on 1 = on Switching on/off switch output A3 (cooling, Switching on/off switch output A2 by hand. nd thermostat difference Not usedorin2thistemperature configuration. controller function) by hand. 3 3 28 1 = on by hand. Switching on/off switch output A2 by hand. Not used in this configuration. Switching on/off switch output A2 by hand. Switching on/of switch Meanioutput ng Not used in this configuration. Indication Switching on/off switch output A3 (cooling, thermostat or 2nd temperature difference controller function) by hand. © Baxi Heating UK 2012 28 © Baxi Heating UK 2012 28 © Baxi Heating UK 2012 © Baxi Heating UK 2012 28 Commissioning of sola 11.0 to Commissioning of solar contr 11.5 Menu “Manua 11.0 Commissioning of sola orReset by pressing for select thewill function. 11.0 Comm 11.5 Menu “Manual Thethe icon flash, press to system canoperation” be select function. Reset by pressing 1.to Forscroll commissioning, service andmanually test purpo Press or or forbyvalues. 1. For commissioning, service and test purposes the selectincrease/decrease the Reset pressingPress or function. for outputs may be system can be manually operated. disconn For this p Forbe commissioning, service purpo can manually operated. Forand this test purpose t down to the requiredsystem sub 1.function. increase/decrease values. forPress anduporor values. appears, increase/decrease Press outputs may be disconnected or connected ok? outputs may be connected. system candisconnected be manuallyoroperated. For this p and appears, 11.5 Menu “Man The iconvalues. will flash, to Press press andincrease/decrease appears, ok? m ok? outputs may beWARNING disconnected -orDuring connected WARNING - During operation the and press WARNING - During manual manual operation there is no selectappears, the function. Resetand by pressing to confirm ok? regulation of the system ok? press to confirm regulation of the1.system. Temperature con press to confirm and and of the system. Temperature control is iso For commissioning, s ok? regulation ok? WARNING - During manual operation the for System temperature coh disappears. or System temperature could be be extremely temperature could be extremely high. disappears. disappears. press to confirm and ok? System system can manuall regulation of the system. Temperature con increase/decrease values. Press System temperature could be extremely h disappears. outputs states may this be mode discon 2. To avoid oo 2. To inadmissible avoid inadmissible operating states this 2.operating To avoid inadmissible and into “Indication” after approximately 8 hours ok? appears, changes changes into “Indication” after approximatel 2. To avoid inadmissible operating states this changes into “Indication” automatic regulation is activated again. -again. WARNING During automatic regulation is activated changes into “Indication” approximatel automaticafter regulation is a press to confirm andautomatic regulation of again. the syste ok?thisregulation activated NOTE: Exiting menu willisautomatically return th NOTE: Exiting this menu will automaticallyc System temperature disappears. normal operation. normal operation. NOTE: Exiting this men NOTE: Exiting this menu will automatically normal operation. normal operation. 2. To avoid inadmissible System temperature could be extremely high. 28 Commis 11.5 Menu “Manual operation” The willtoflash, press sub function. to up oricon down the required 1. For commissioning, se 11.5 Menu “Manual operation” The icon will flash, press to WARNING - During manual operation there is no automatic regulation of the system. Temperature control is isolated. 28 11.0 to scroll © Baxi Heating UK 2012 0 =0off = off 1 =1on = on 0 = off 1 = on changes into “Indicatio automatic regulation is NOTE: Exiting this me normal operation. Commissioning of solar controller Basic Adjustment Menu (Fig 27) Fig. 32 Adjustment and changes in this menu must be carried out only by a competent installer or service engineer. Figure 27 Press Fig. 32 or to scroll up or down to the required sub function.11.0 Incorrect adjustments may adversely affect the function of controller and solar primary system. Press The icon will or flash, press to scroll up or down to the required sub function. To avoid accidental changes in the “Basic adjustment” menu, it is not editable in normal functioning but has only a display function. To be able to carry out any changes, this menu must be chosen within the first minute after switching on the appliance. The basic adjustment menu is ‘blocked’ automatically one minute after switching on if the menu is not accessed. to select the function. Reset by pressing The icon will flash, press 11.6 to increase/decrease values. Press or for increase/decrease values. Press and appears, Indication Indication Indication Line / value Line / value 0 -- 0 00 -- -- 0 0 Collector protection function. 40ºC 3 -- 4 --°C 0 40 2 0 = off 0= 1 = on off 1 = on 0 = off 0 30..90°C = off 1 =0 on 30-90ºC Energy yield measurement – off. Energy yield measurement 8… 6 -- 11 7 -- 100 10 -- 1 11 -- 0 12 -- 6 10 9 -- 240 13 -- 10 -- 9 -- Multiple tank mixture. storage systems. 11 -- 3ºC 0 1 2 3 4 5 set to 2. Multiple tank storage systems. Independent controller function Controller Antifreezeresponse function time in seconds. Anti-freeze function. First priority storage tank selection. 5 30 - 480 0.1-75 litres per impulse -20 °C ... +7 °C 0 6 100% * 10 1 = on 1-6 1-2 * * 0 = off -20 0 - 4°C ... +7 °C 0* 1 = on 5 0 = off 1-6 sensor selection. Independent controller function Antifreeze function start temperature. * * 1 2 2 = thermostat 1-6 10 240 3 0 = off 1 - 2 30-480 0 = off 1 = cooling Anti-freeze functionfunction. start temperature System diagram Antifreeze 240* 0 6 1* 30 6 * 1 = cooling 2 2-20-+7ºC = thermostat 3 0 =1 off -T6yfocor L5.55*- supplied controller reference6sensor AnrIndependent o IIexan E, Glythermin 7 10 0 0 -Dowcal 4 System diagram 1 = cooling * Independent controller function. Antifrogen L 8 Dowcal 202* 2 = Antifrogen N 9 Dowcal N thermostat IIexan E 10 Tyfocor LS controller reference IIexanIndependent P 11 Fernox S1 1-6 sensor. ro © Baxi Heating A UKn2012 0 1 2 3 4 5 litres per impulse 1-6 Reference sensor selection Independent controller reference sensor 2 0 15 -- 5 1 16 -- 0 214 -- 2 3 4 5 per impulse 10.5-25 = on Antifreeze function – reference 13 -- 15 -- Anti-freeze function start temperature 16 -0 03°C 6 14 -- Antifreeze function Adjustment value when item 5 is set to 1. Anti-freeze function. Multiple tanksensor storage systems. Reference selection Controller response time in seconds Adjustment value when item 5 is 5 12 -- – 25Litres 240 300.5 - 480 11 100 11 – First priority storage tank selection 15 -- 100 1 - 2– 75Litres 1* Adjustment value when item 5 is set to 2 0.1 per minute 0 = off 2 1012---- 1 6 13 --11 No value shown, when item 5 is set to 0. First priority storage tank selection 1 0 2 2 11 (5% steps) response timeitem in seconds Controller value Adjustment when 5 is set to 1 3°C 240 14 -- 0 1 0 ... 100% 5% - steps 22 ----- without flow meter. 8… 9 --10 240 8 -- 2 Energy yield measurement No value shown, when item 5-is set to 0 0…11 sets glycol type (see table) 0.5 – 25Litres 0 ... 100% 10 Energy yield measurement Adjustment value when item 5-is set Energy yield measurement – to 1 per impulse 0-11 glycol mixture 5% - steps sets glycol type (see table below). Adjustment value when item 5 is set to 2 0.1 – 75Litres ----per minute No value shown, when item 5 is set to 0 Energy yield measurement – glycol 0-100% 10 7 -- 100 0 0…11 1 sets glycol type (see table) accessory -- 5122979. 11 – code6no. 0 1 = on 2 Energyyield yieldmeasurement measurement Energy Energy yield measurement glycol mixture without flow meter 40ºC 0 0 0 = off 1 with flow meter 0 40°C 1 = on 5 -- solar 2 Energy yield measurement 'Off' Note: This Energy yield measurement Energy yield measurement Meter is now available as an the use of a flow 0 Recooling storage tank temperature Tube collector function - time-controlled Tube collector function – - Code no. 5122979. collector has Controller the Note: Thisaccessory Solar has without flow withmeter flow meter. Energy yield measurement ability totocalculate the ability calculate the the Energy yield measurement 6 -- the 11use energy yield without energy yield without with flow meter Meter is nowflow available as an 7 --meter 100 meter.The accessory - Code no.as 5122979. is now available an 0 0 = off Energy yield measurement 'Off' Tube collector function - time-controlled * 120ºC 120°C 30..90°C 1 = on 40°C -- 2 0 5 4-Note: This Solar Controller has the ability to calculate the energy yield without the use 0* 0 Recooling function Recooling storage tank temperature (only if the collector protection is on) time-controlled. 5 -- * 110..150°C Recooling storage tank temperature. 0 0 120°C 110-150ºC Recooling function Recooling function (only if the (only if the collector protection is on) collector protection is on). 0 2 -- 3 -- 0 40 °C 4 -- 110..150°C Collector protection function 3 -- Menu “Basic adjustment” Anro Ilexan E, Glythermin IIexan E, Glythermin Antifrogen L Antifrogen L Antifrogen N Antifrogen N Ilexan E Ilexan IIePxan E IIexan P © Baxi Heating UK 2012 6 7 8 9 10 11 COMMISSIONING 2 -- 11==on on Collector protection function 1 -- 120 °C 0 0 = off = off 1=0 on 0 = off Collector protection function 120ºC 2 -- ok? Collector protection function. Collector protection function 1 -- 120 °C 1 -- Commissioning of so 11.6 Menu “Basic ad controller and solar primary system. ok? appears, press to confirm and ok? 2. To avoid accidental chan press to confirm and ok? 2. To avoid accidental changes in menu “B not editable in normal func disappears. not editable in normal functioning but ha disappears. function. be able function. To be able To to carry out to any carr cha chosen within theafter firstsw be chosenbewithin the first minute appliance.appliance. The basic adjustment is The basicmenu adjust automatically one minute one after minute switchin automatically Factory Factory Description Value range Description Value range Factory not accessed. set - up set-up Description Value range not accessed. set - up * Factory settings for these parameters must not be altered Line / value Commissi 1. Adjustment and changes only by a competent instal 1. Adjustment and changes in this menu ma only by a Incorrect competent adjustments installer or service prima Incorrectcontroller adjustmentsand may solar adversely aff or Reset by for select the function. pressing and 11.0 For correct operati recommend the set 5* For c recom Tyfocor L5.5 – supplied 6 Tyfocor Dowcal 10 7 Dowcal Dowcal 20 8 Dowcal Dowcal N 9 Dowcal Tyfocor LS Fernox 10 S1 Tyfocor 11 L5.5 - supplied 10 20 N LS Fernox S1 29 Commissioning of solar controller COMMISSIONING Overview of display and operating elements 11.0 Commissioning 11.0 Commissioning of of solar solar controller controller 11.0 Commissioning of solar controller 11.0 Commissioning of of solar solar controller 11.0 Commissioning 11.0 Commissioning of solar controller controller 11.0 Commissioning solar 11.7 Overview of display andofoperating elements 11.0 Overview Commissioning solar controller controller 11.7 of display andof elements 11.0 Overview Commissioning ofoperating solar controller 11.7 of display and operating elements 11.0 Overview Commissioning of solar controller 11.7 of display andofoperating elements 11.0 Commissioning solar controller 11.7 Overview of display andofoperating elements 11.0 Commissioning solar controller 11.7 Overview of display andofoperating elements 11.0 Commissioning solar controller 11.7 Overview of display andofoperating elements 11.0 Commissioning solar controller (Fig 28) 11.7 Overview of display and operating elements 11.0 Commissioning of solar controller 11.7 Overview of display and operating elements 11.7 Overview of display and operating elements Fig. 33 Fig. 33 11.7 Overview of display and operating elements 11.7 Overview of display and operating elements Fig. 33 Graphic Description Indication in operation 11.7 Overview of display and operating elements Fig. 33 11.7 Overview of display and operating elements Fig. 33 11.7 Overview raphic symbol Description Indicofatdisplay ion inand opoperating eration elements Fig.G33 raphic symbol Description Indication in operation Fig.G33 G33 raphic symbpoints ol DescriMeasuring ption Indication in operation Fig. Measuring assignment points assignment raphic symbol DescriMeasuring ption Indication in operation Fig.G33 points assignment raphic symbol DescriMeasuring ption Indication in operation Fig.G33 points assignment raphic symbol DescriMeasuring ption Indication in operation Fig.G33 points assignment raphic symbol DescriMeasuring p tioncollector Indication in operation Fig.G33 points assignment Temperature measuring point array 1 raphic symbol D e s c r i p t i o n Indi1 cation in operation Fig.G33 Temperature measuring point collector array Measuring points assignment info Temperature measuring point collector array 1 raphic symbol D e s c r i p t i o n Indication in operation Fig.G33 Measuring points assignment Temperature measuring point array assignment 1 raphic symbol DescriMeasuring p tioncollector Indication in operation Fig.G33 points Temperature measuring point collector array assignment 1 Graphic symbol D e s c r i p t i o n I n d i cation in operation programming Measuring points Temperature measuring point collector array assignment 1 Graphic symbol DescriMeasuring p tioncollector Indication in operation points Temperature measuring point array 1 Misc icon 1 Graphic symbol DescriMeasuring p tioncollector Indicatiin on in configuration operation info Not Temperature measuring measuring point array assignment points Temperature point array 122 Graphic symbol Demeasuring scriMeasuring p tioncollector Indiused catiin onthis in configuration operaused tion in this configuration Not used this Temperature measuring measuring point collector array assignment points Temperature point collector array 1 Temperature point collector array 2 Not Graphic symbol D e s c r i p t i o n I n d i c a t i o n i n o p e r a t i o n manual operation Not used in this configuration points Temperature measuring measuringMeasuring point collector collector array assignment 2 Temperature point array 1 programming Not used in this configuration Measuring points assignment Temperature measuring measuring point point collector collector array array 12 Temperature Not used in this configuration Measuring points assignment Temperaturemeasuring measuringpoint pointstorage collector array Misc icon 2 Temperature measuring point collector array 12 Temperature tank 1 solar Not used in this configuration Temperaturemeasuring measuringpoint pointstorage collector array Temperature measuring point collector 122 Temperature tankarray 1 solar basic adjustment Not in this configuration Temperature measuring point collector array Temperature measuring point collector array 12 storage tank Temperature measuring point 1used solar (storage tank 1 charging) manual operation Temperature measuring point storage tank 1 solar Not used in this configuration Temperature measuring point collector array (storage tank 1 charging) Temperature measuring point collector array 1 Temperature measuring point storage tank 1 solar Not used in this configuration Temperature measuring point collector array 2 Temperature measuring point collector array 1 (storage tank 1 charging) Temperature measuring point storage tank 1 solar Not used in this configuration Temperature measuring point collector array 2 (storage tank 1 point charging) Misc icon 3 Temperature measuring storage tank 1solar solar (storage tank 1 charging) Temperature measuring point storage tank Not used in this configuration Temperature measuring point collector array 2 basic adjustment (storage tank 1 charging) Temperature measuring point storage tank 1solar solar Temperature measuring point storage tank Not used in this configuration Temperature measuring point collector array 2 (storage tank 1 charging) Temperature measuring point storage tank 1solar solar Temperature measuring point collector array 2 (storage tank charging) Not used in this configuration Temperature measuring point storage tank 5x7 segment display (storage tank 122 charging) Temperature measuring point storage tank 1solar solar (storage tank charging) Not used in this configuration Temperature measuring point collector array 2 storage tank Temperature measuring point 1 solar Temperature measuring point storage tank (storage tank 1 charging) Temperature measuring point storage tank 1 solar Not used used in in this this configuration configuration Temperature measuring point collector array 2 (storage tank charging) Temperature measuring point storage tank solar Not Misc icon 4 tank 122 charging) Not used in this configuration 2 Temperature measuring point storage solar Temperature(storage measuring point storagetank tank1 (storage tank charging) Not used in this configuration (storage tank 12 charging) Temperature measuring storage tank 1solar solar (storage tank charging) Not used in this configuration (storage tank 1 point charging) Temperature measuring point storage tank solar Temperature measuring point storage tank 1solar solar (storage tank 12 charging) Temperature measuring point collector - return Temperature measuring point storage tank 5x7 segment display Not used in this configuration (storage tank 12 charging) Temperature measuring point storage tank 1solar solar Temperature measuring point collector - return (storage tank charging) Not used in this configuration Temperature measuring point storage tank (storage tank 1 charging) Temperature measuring point storage tank 1solar solar Temperature measuring point collector - return (storage tank charging) Temperature measuring point storage tank Not used in this configuration Temperature measuring point collector (storage tank 122 charging) Temperature measuring point collectortank - return (storage tankpoint charging) Not used in this configuration Temperature measuring storage solar (storage tank 12 charging) Temperature measuring point collector - return (storage tankpoint charging) Temperature measuring storage tank solarcollector – return Temperature measuring point Not used in this configuration Temperature measuring point storage Temperature measuring point collector - tank return Temperature measuring storage tank solar (storage tankpoint 2 point charging) Not used in this configuration Temperature measuring storage tank Temperature measuring point collector return (storage tank 2 charging) Not used in this configuration Temperature measuring point storage tank solar Temperature measuring storage (auxiliary heating) Temperature measuring point collector - tank return (storage tankpoint 2 point charging) Temperature measuring storage tank solar Not used in this configuration Temperature measuring point collector Temperature measuring point storage tank lower (auxiliary heating) Temperature measuring point storage tank Temperature measuring collector return (storage tankpoint 2 point charging) Not used in this configuration Temperature measuring storage-- tank (auxiliary heating) Temperature measuring collector returnstorage tank (storage tankpoint 2 point charging) Temperature measuring storage Temperature measuring point (auxiliary heating) Antifreezing sensor or universal temperatures Temperature measuring point collector - tank return Temperature measuring point storage tank (auxiliary heating) Antifreezing sensor or universal temperatures Temperature measuring point collector return Temperature measuring point storage (auxiliary heating) Temperature measuring point collector - return Temperature measuring point storage tank lower Temperature measuring point collector - tank return Antifreezing sensor or(no universal temperatures measuring point (T6) sensor monitoring) (auxiliary heating) Temperature measuring point storage (auxiliary heating) measuring point (T6) sensor monitoring) Temperature measuring point collector - tank return Antifreezing sensor or(no universal temperatures Temperature measuring point storage (auxiliary heating) Temperature measuring point collector - tank return Antifreezing sensor or(no universal temperatures measuring point (T6) sensor monitoring) Temperature measuring point storage tank (auxiliary heating) Antifreezing sensor or(no universal temperatures measuring point (T6) sensor monitoring) Temperature measuring point storage tank (auxiliary heating) Antifreezing sensor or universal temperatures Antifreezing sensor ortemperatures universal temperatures measuring point (T6) sensor monitoring) Temperature measuring point tank measuring point storage tank upper Temperature measuring point collector -Temperature return Auxiliary heating temperature (auxiliary heating) Antifreezing sensor or(no universal measuring point (T6) (no sensorstorage monitoring) Auxiliary heating temperature Temperature measuring point tank (auxiliary heating) Antifreezing sensor or(no universal temperatures measuring point (T6) sensorstorage monitoring) Temperature measuring point tank (auxiliary heating) Auxiliary heating temperature Antifreezing sensor or(no universal temperatures measuring point (T6) sensorstorage monitoring) measuring point (T6) (no sensor monitoring) (auxiliary heating) Auxiliary heating temperature Antifreezing sensor or universal temperatures measuring point (T6) (no sensor monitoring) (auxiliary heating) Auxiliary heating temperature Antifreeze Antifreezing sensor or(no universal measuring point (T6) sensortemperatures monitoring) Temperature measuring point storage tank upper sensor Auxiliary heating temperature measuring OpAntifreezing erating Auxiliary houpoint rsensor s, en(T6) eheating rgor y (no puniversal rotemperature dsensor uctivittemperatures ymonitoring) measurement Antifreezing sensor or universal temperatures measuring OpAntifreezing erating Auxiliary houpoint rsensor s, en(T6) eheating rgor y (no puniversal rotemperature dsensor uctivittemperatures ymonitoring) measurement measuring point (T6) (no sensor monitoring) Auxiliary heating Opmeasuring erating Auxiliary houpoint rs, en(T6) eheating rgy (no protemperature dsensor uctivitymonitoring) measurement temperature Switch ouput 3 Antifreeze sensor Opmeasuring erating Auxiliary hours, en(T6) eheating rgy protemperature ductivitymonitoring) measurement Operating houpoint rs, energy (no prodsensor uctivity measurement Operating Auxiliary hours, eneheating rgy protemperature ductStatus ivity meaindication surement Auxiliary heating temperature Operating Auxiliary hours,hours, eneheating rgy protemperature ductStatus ivity meaproductivity surement Operating energy Operating Auxiliary hours, eneheating rgy protemperature ductStatus ivity meaindication s u r e m e n t Switch ouput 3 Solar pump circulation Operating Auxiliary hours, eneheating rgy protemperature ductStatus ivity meaindication surement indication Operating hours, energy productStatus ivity meaindication surement measurement Symbol revolves when solar circulation pump is on Operating houSolar rs, enecirculation rgy producpump tStatus ivity measurement Symbol revolves when solar circulation pump is on Operating houSolar rs, enecirculation rgy producpump tivity meaindication surement Operating houSolar rs, enecirculation rgy producpump tStatus iStatus vity meaindication s u r e m e n t Symbol revolves when solar circulation pump is on Solar pump circulation Switch output 1 Operating houSolar rs, enecirculation rgy producpump tStatus ivity meaindication surement Symbol revolves when solar circulation pump is on uSolar rs, enecirculation rgy producpump tStatus ivity meaindication surement Symbol revolves when solar circulation pump is on Status indicationOperating hoSwitch indication Solar circulation Symbol revolves solar circulation pump is on output 1 ispump active Appears whenwhen switch output 1 is active (on) Status indication Solar circulation pump Symbol revolves when solar circulation pump is on Switch output 1 is active Appears when switch output 1 is active (on) Status indication Solar circulation Symbol revolves solar circulation pump is on Status indication Switch output 1 ispump active Appears whenwhen switch output 1 is active (on) Switch output 1 Switch ouput 2 Solar circulation Symbol revolves when solar circulation pump is on Status indication Switch outputpump 1 ispump active Appears whenwhen switch output 1 is active (on) Solar circulation Symbol revolves solar circulation pump is on when solar circulation pump is on Solar circulation Symbol revolves Status indication Switch output 1 ispump active Appears whenwhen switch output 1 is active (on) Solar circulation pump Symbol revolves solar circulation pump is on Switch output 12 is active Appears when switch output 1 is active (on) Solar circulation pump Symbol revolves when solar circulation pump is on Switch output is active Not used in this configuration Switch output is active Appears when switch output 1 is active (on) Solar circulation Symbol revolves when solar circulation pump is on Switch output 112 is ispump active Not used in this configuration Switch output active Appears when switch output 1 is active (on) Switch ouput 2 Solar circulation Symbol revolves when solar circulation pump is on Switch output 12 is ispump active Not used in this configuration Switch output active Appears when switch output 1 is active (on) ! System fault Solar circulation Symbol revolves when solar circulation pump is on Switch output 12 is ispump active Not used in this configuration Switch Appears when switch 1 is active (on) Switch output output 12 is is active active Not used in thisoutput configuration Switch output active AppearsNot when switch output 1 is activewhen (on) Switch output 1 is active Appears switch output 1 is active (on) Switch output 2 is active used in this configuration Switch output 123 is active AppearsNot when switch output 13 is active (on) Switch output is active used in this configuration Switch AppearsNot when switch 13 is active (on) Switch output output 11233 is is active active used in thisoutput configuration ! System fault Safety query Switch output is active AppearsNot when switch output 1 is active (on) ok? Switch output is active used in thisoutput configuration Switch Appears switch 133 is Switch output output 1223 is is active active Appears when when switch output is active active (on) (on) Switch output is active used in thisoutput configuration Switch output 32 is active AppearsNot when switch 3 is active (on) Switch output is active Not used in thisoutput configuration Switch output 3 is active Appears when switch 3 is active (on) Switch output output active Not used in athis configuration Reference to system fault Display flashes when fault occurs the system Switch output 2 system is2323 isisisisactive Not in Switch active Appears when switch output 3 used is inactive (on)this configuration Switch active Not used in athis configuration Reference to fault Display flashes when fault occurs the system Safety query ok? Switch output output active Appears when switch output 3 is in active (on) Switch 23 is Not used in athis configuration Reference to system fault Display flashes when fault occurs the system Switch output output is active active Appears when switch output 3 is in active (on) Switch 23 is Not used in athis configuration Reference to system fault Display flashes when fault occurs the system Switch output output is active active Appears when switch output 3 is in active (on) Reference to system fault Display flashes when a fault occurs in the system Input value can be either Switch output 3 is active Appears when switch output 3 is active (on) Up Reference to system fault Display flashes when a fault occurs the system Input value can be either Switch 3 which is active Appears when switch output 3 is in active (on) Safety query for value output changes are to be stored ok? Reference to system fault Display flashes when a or fault occurs the system Input value can be either Switch isactive active Appears when switch output 3 is in (on) Safety query output for value output changes are to be stored rejected accepted ok? Switch 3 system is33 which Appears switch output 3 is active (on) Reference to fault Display flashes when a fault occurs inactive thewhen system Input value can be either Switch is active Appears when switch output 3 is in active (on) rejected accepted Safety query for value output changes are to be stored ok? Reference to system fault Display flashes when a or fault occurs the system Input value can be either Switch 3 which is active Appears when switch output 3 is inactive (on) rejected or accepted Safety query for value output changes which are to be stored Reference to system fault Display flashes when a fault occurs the system Input value can be either ok? Up Safety query for value changes which are to be stored rejected Down ok? Reference to system fault Display flashes when a or fault occurs inaccepted the system Input value can be either Safety query for value changes which are to be stored rejected or accepted ok? Reference to system fault Display flashes when a or fault occurs inaccepted the system Input value can be either rejected Safety query for value changes which are to be stored Reference to system fault Display flashes when a or fault occurs inaccepted the system ok? Input value can be either Safety query for value changes which are to be stored rejected ok? Reference to system fault Display flashes when a or fault occurs inaccepted the system when a fault occurs in the system Input value can be either rejected Reference to system fault Display flashes Safety query for value changes which are to be stored Reference to system fault Display flashes when a fault occurs in the system ok? Input value can be either Down rejected Safety query for value changes which are to be stored Left ok? Input valueorcan be eitheraccepted rejected Safety query for value changes which are to be stored Input valueor can be eitheraccepted ok? Safety query for value changes which are to be stored rejected ok? Input valueor be eitheraccepted Safety query for value changes which are to be stored rejected orcan accepted ok? Input valueor can be eitheraccepted rejected Safety query for value changes which are to be stored ok? Safety query for value which are to be stored Left accepted can be either Right ok? Solar query forchanges value changes which are to be rejected storedor rejected or accepted rejected or Input value accepted !! !! !! !! !!! !! !! Indicator values dT Temperature difference © Baxi Heating UK 2012 30 © Baxi Heating UK 2012 30 © Baxi Heating UK 2012 30 Min value ©min Baxi Heating UK 2012 30 © Baxi Heating UK 2012 30 © Baxi Heating UK 2012 30 ©max Baxi Heating UK 2012 Max value 30 Misc icon 1 © Baxi Heating UK 2012 info 30 © Baxi Heating UK 2012 30 ©min. Baxi Heating UK 2012 30 © Baxi programming Heating UK 2012 30 © Baxi Heating UK 2012 30 © Baxi Heating UK 2012 30 0:00 Time period 1 start © Baxi Heating UK 2012 Misc icon 2 30 © Baxi Heating UK 2012 30 1 manual operation max. Misc icon 3 basic adjustment 23:59 Time period 1 stop 1 Misc icon 4 2 5 x 7 segment display 5x7 segment display Presentation of figures 00000 to 99999 ºC Temperature in celsius KTemperature measuring Temperature difference in Kelvin point collector h Operating hours Temperature measuring point storage tank lower kWh Productivity indication in kWh Temperature measuring point collector - return Temperature measuring point storage tank upper Antifreeze sensor Switch ouput 3 30 Solar pump circulation Switch output 1 Right Appears when minimum values are indicated Appears when maximum values are indicated Appears when the differential controller is active (timeframe 1-3) or tube collector is active (timeframe 4) Appears when the differential controller is active (timeframe 1-3) or tube collector is active (timeframe 4) Display of all values, display flashes when a value is changed Commissioning of solar controller Controller functions The differential temperature controller contains many functions to regulate and monitor the solar primary system. Including – controller functions for heating the solar cylinder – functions for system protection and system monitoring – additional functions (other accessories may be required to achieve these functions). General controller functions The controller collects the temperatures from various measuring points and determines the right time to charge the storage tank taking account of programmed (additional) functions and controller parameters. Cylinder heating by solar primary system Switching action can be adjusted through dTmax (dTon) and dTmin (dToff). The solar cylinder is heated by operating the solar pump on output A1 up to the set maximum storage temperature (65°C). Pump operation starts when the collector temperature exceeds the cylinder temperature by more than dTon and continues while the collector temperature is above cylinder temperature + dToff, as set in the programming menu. dTon cannot be set lower than dToff + 1K. Corresponding values in menu “Programming” --- Maximum temperature --- dT max (dT on) Switch-on temperature difference --- dT min (dT off) Switch-off temperature difference Rotational speed regulation COMMISSIONING "Basic adjustment" The solar circulation pump on 230V-outputs A1 and A2 can be operated either in switch-mode (two-point controller) or in a rotational speed regulated way. If the rotational speed regulation is activated the pump power is adjusted by a controller so that switch-on temperature difference “Storage tank dTmax” is kept constant as much as possible. At lower deviation of “Storage tank dTmax” the pump is operated with the lowest power till the switch-off wave is reached. Corresponding values in menu "Basic adjustment" "Programming" --- Rotational speed min <100% 31 11.0 Thermostat (heating) Commissioning of solar controller The thermostat is an independent control circuit from the storage loading. Thus, auxiliary heating of the top area of the 11.13 Rotational speed regulation storage cylinder is made possible. The output A3 will be (see Fig 29): 1. The solar circulation pump on 230V-outputs A1 and A2 can • Switched on, when the temperature falls below the adjusted start level. either in switch-mode (two-point controller) or in be operated a rotational speed regulated way. If the rotational speed • Switched off, when the temperature reaches the adjusted start level + hysteresis. regulation is activated the pump power is adjusted by a controller so that switch-on temperature difference “Storage tank dTmax” is kept constant as much as possible. At lower deviation of “Storage tank dTmax” the pump is operated with the lowest power till the switch-off wave is reached. Corresponding values in menu "Basic adjustment" "Programming" 14 -- 2 Start temperature max ºC 15 -- 5 Hysteresis dT in K Time period (1...3) Start: min time Corresponding values in menu Time period (1...3) Stop: min time “Basic adjustment” --- “Programming” Rotational speed min <100% Figure 29 COMMISSIONING 11.14 Thermostat (Storage top) T[ºC] dT 10k TTh 40ºC on A3 off t Heating on (A3) Fig. 35 Tube collector Thermostat (heating) 1. The thermostat is an independent control circuit from the storage loading. Thus, auxiliary heating of the top area of the storage cylinder is made possible. The output A3 will be: • Switched on, when the temperature falls below the adjusted start level. • Switched off, when the temperature reaches the adjusted start level + hysteresis. Corresponding values in menu The function “tube collector” can be switched off/on in the “Basic setting” menu – point 4. Timeframe 4 in the “Program” “Basic adjustment” “Programming” menu makes it possible to activate this function during certain periods of the day. When activated, the solar pump will be 14 -2 Start max heat ºC gain in the collector. switched on every 30 minutes for a period of 30 seconds to temperature check for any 15 -- 5 Hysteresis dT in K Corresponding values in menu Time period (1…3) Start: min time "Basic adjustment" "Programming" 4 -- 1 Time period (4) Start: min time Misc icon 1 Misc icon 1 Time period (1…3) Stop: max time Time period (4) Stop: min time 11.15 Misc icon 2 Misc icon 2 Thermostat (cooling) Sensor monitoring 1. In order to optimise the energy yield, it could be useful to solar energy, or to take it away from the storage The connecting cables are constantly monitored“redirect” for anythe break or short circuit. If a faulty sensor when the storage temperature reaches a pre-set level. by the controller, the symbol is shown. By scrolling up and down you can detect the source of the error. When the sensor reaches the start temperature, output A3 The use the type of temperature sensors can also give towillanbeerror message switched on. When the temperature level falls below Misc iconwrong 4 2 of Misc icon 4 2 the start temperature hysteresis, the output A3 will be switched off. Indication Meaning Misc icon 3 sensors Miscand icon 3their splay splay Short circuit on temperature sensor of the current measuring point Corresponding values in menu “Basic adjustment” oint collector oint collector 14 -- 1 int storage tank lower int storage tank lower 15 -- 5 Break on temperature sensor of the current “Programming” measuring point, circulation error at activated Start temperature max energy productivity measurement ºC Hysteresis dT in K Time period (1…3) Start: min time Time period (1…3) Stop: max time int collector - return int collector - return int storage tank upper int storage tank upper © Baxi Heating UK 2012 32 33 is detected 5x7 segment display point collector - return Temperature measuring Temperature measuring point storage tank upper Temperature measuring point collector Antifreeze sensor Flow monitoring Temperature measuring point storage tank lower If during normal operation the flow temperature rises above 90°C a warning indication will be shown. Switch ouput 3 If the energyTemperature productivity measurement option is deactivated, the temperature difference between collector and storage measuring point collector - return tank is checked. If the temperature differential exceeds 60K + dTmax an error message will occur, as under normal system pumpiscirculation operation where theSolar pump running, large temperature differences would not normally be seen. measuring point storage option tank upperis activated, the flow rate is checked, if no flow is detected for 15 minutes an If the energyTemperature productivity measurement error message will be seen (Applicable if Flow Meter fitted). Switch output 1 sensor NOTE: these Antifreeze error conditions will automatically reset after a short period of operation once normal flow/temperature conditions are restored. Switch ouput 2 Switch ouput 3 Indication Meaning ! System fault Solar pump circulation Fluid flow is above 90ºC (indication) / Missing circulation in solar circuit Safety ok? output Switch 1 query System protection function The system protection function switches the system off if the “maximum collector temperature” is exceeded by 10K. As soon as the temperature drops below the “maximum collector temperature”, the system restarts. This function has priority and is Switch ouput 2 always active, regardless of whether the collector protection is on or off. Up ! Frost protection System fault Safetyvalue query is lower than the start temperature, the solar pump is activated until the adjusted frost protection start ok? If the measured temperature +5K is Left reached. The minimum runtime of the pump is 5 minutes. For safety reasons the function is deactivated if the temperature of the priority storage falls below 5ºC. Right Energy productivity measurement Up COMMISSIONING This function can be switched on or off by using item 11 in the “Basic adjustments” menu. The start temperature can be DownFurthermore, a frost protection sensor can be selected (T1-T6, point 12). adjusted with item 13. For the purposes of energy productivity measurement (solar gain), a sensor on the collector return line and an optional flow meter are required. The yield value is calculated from the values of the temperature difference between the collector and Down collector return line and the value measured by the flow meter. This function is switched on and off in the “Basic settings” menu. Left Corresponding values in menu "Basic Setting" 5 -- 1Right "Programming" "Info" --- XXXX kWh Operating hours meter When the storage tank is being charged by a pump, the operating hours meter records for each separate pump. The number of operating hours can be read in the “info” menu. This may be reset to ‘0’. Corresponding values in menu "Programming" "Info" --- XXXX h 33 1 2 Setting the system flow rate 12.0 Checking and adjusting the flow rate djust the flow rate when the system is cold (approx 20°C) A (see Fig. 30). 5 Figure Fig. 36 30 1 T he flow rate should be adjusted to give the optimum flow rate depending on the number and type of collector(s) connected. 3. Manually opera 4 epending on the number and type of collectors installed, D set the required flow rate from table (See Table 6). COMMISSIONING T he float in the flow meter will indicate the circulation flow rate through the flow meter sight glass (Fig. 30 Item 4). 4. Set the solar p the required flow lowest possible s Item 3) can be u 3 5. Depending on set the required 4 6. The float in the rate through the FlowTable rate1 system Flow rate Table 6is cold) (when Ensure that the float is stable when the pump is running. S et manual pump operation to off (See page 28 – Manual 3m2 Operation). 2 4m 12.2 Installation of the thermal insulation 5m2 2 Refit the controller mounting moulding (Fig. 31 Item 1)6m onto the rear moulding. P ush the front thermal insulation (Fig. 31 Item 2) against the rear thermal insulation section (Fig. 31 Item 3) until it clips Fig. 37 into place. 7. Adjust screw o screwdriver, until indicates the requ anticlockwise to i (when system is cold) Area 2m2 3m2 4m2 5m2 6m2 Fig. 37 l/min Area 2 -2m²4 3 -3m²6 4 -4m²8 5m² 5 - 10 6m² 6 - 12 Flow rate (when system is cold) l/min 2-4 3-6 4-8 5 - 10 6 - 12 l/min 2-4 8. Ensure that the 3-6 4-8 9. Set manual pum 5 - 10 6 - 12 12.2 Installa 1. Refit the contr onto the rear mo Figure 31 2. Push the front rear thermal insu place. Benchmark™ Log Book On completion of the installation and commissioning procedures detailed in this Product Guide the Benchmark™ “Installation, Commissioning and Service Record Log, pages 48 and 49” should be completed and signed off by the competent installer or commissioning engineer in the relevant sections. The various system features, location of system controls, user instructions and what to do in the event of a system failure should be explained to the customer. The customer should then countersign the Benchmark™ commissioning checklist (page 48) to accept completion. The Service Record (page 50) should be filled in when any subsequent service or maintenance operation is carried out on the Megaflo Eco SolaReady unit (See Maintenance and Servicing, page 37). 3 1 2 3 1 2 © Baxi Heating UK 2012 34 Check 2. The flow rate s rate depending o connected. 35 S et the solar pump speed selector (Fig. 30 Item 5) so that the required flow rate is achieved or exceeded with the lowest possible setting. The flow limiter adjusting screw (Fig. 30 Item 3) can be used to fine-tune the flow rate. Unstable flows may indicate air is trapped within the system. Area Follow procedure on page 24 to remove air entrapped. 2 Check and if necessary reset flow after removal of air. 2m 12.1 1. Adjust the flow (see Fig. 36). 2 anually operate the solar pump (See page 28 – Manual M Operation). djust screw of the flow limiter (Fig. 30 Item 3) with a A screwdriver, until the upper edge of the float inTable the sight 1 glass indicates the required flow rate (Fig. 30 Item 4). Turn the screw anticlockwise to increase the flow. Set Commissioning record Commissioning record The following chart should be completed during Commissioning of the system. Installer: _______________________________ BPEC No.: _______________________________ Contact details: _______________________________ Serial Nos. Cylinder _______________________________ Original commissioning date: _______________________________ Collector _________________ Pump Station Serial Number: ___________________________ General Commissioning Solar differential temperature controller - operational parameters All pipework correctly installed, identified and earth bonded ❑ Solar expansion vessel charge pressure checked and set before filling the system ❑ Solar primary system filled with heat transfer fluid supplied ❑ System pressure test carried out Storage tank1: switch-on difference (dTon) 7K ❑ Air vented from system ❑ Storage tank1: switch-off difference (dToff) 3K Exposed pipework insulated using high-temp and weather resistant insulation (bird/rodent-proof) ❑ Minimum pump power on rotational speed regulation 100% ❑ Switch-on temperature of thermostat function 40°C collector installation weatherproof Collector fixings checked and secure ❑ If any factory values are changed please enter the new values in the table below. bar Storage tank1: Maximum storage temperature System pressure when cold bar Solar primary flow when cold l/min ❑ Solar Collectors Typical Current adjustment adjustment 65°C Hysteresis of thermostat function 10 K 2nd temperature differential controller maximum temperature Tmax 65°C 2nd temperature differential controller hysteresis dTmax 7K Adjustable in menu "Basic adjustments" Typical Current adjustment adjustment Switching on or off the function collector protection 0 = off * Temperature at which the collector protection function is active 120°C * Switching on or off the function recooling (only when the collector protection is on) 0 = off * 40°C * Collector visually inspected for defects ❑ Temperature to which the storage tank is recooled when collector protection function is on Collector temperature sensors correctly installed and secured ❑ Function for time-controlled circulation in operation with tube collectors 0 = off Pipe entry points to building weatherproof Switching on or off the function energy productivity measurement 2 = on ❑ Choice of glycol types used Mixture ratio of coolants Solar Differential Temperature Controller * COMMISSIONING Hydraulic Station Isolating/non-return valves (flow and return) in operating position Adjustable in menu "Programming" 0 = Anro 50% Litres per min 10 l/m Switching on or off the function antifreezing 0 = off Record all operational parameters set (see separate table) ❑ Pump operation tested in automatic and manual modes ❑ All cables correctly installed and secured ❑ System type Suitably fused isolating device installed ❑ Time control in secs Controller earthed ❑ Temperature at which the antifreezing is active Alternative choice of the cooling, thermostat function or the 2nd temperature differential controller Storage priority 3°C 2 type 0 240 1 * Megaflo recommends these settings are left at the default value. Solar Cylinder Cylinder installed and commissioned in accordance with cylinder installation instructions 38 © Baxi Heating UK 2012 ❑ 35 36 Servicing and maintenance record © Baxi Heating UK 2012 ❑ ❑ ❑ ❑ ❑ ❑ Check sensor operation (use resistance/temperature table. See page 43) Check solar cylinder in accordance with manufacturer's instructions Ensure system is free of air Visually check condition of solar collector mountings KWh recorded (if applicable) Visually check condition of any waterproofing (around pipe entries to roof and roof fixings) BPEC Number ____ ❑ Check discharge vessel fluid level Engineer’s initials ❑ l/min bar bar Check operation of PRV Check solar primary system flow rate Check solar primary system pressure (cold) Check solar expansion vessel charge pressure ____ ____ ____ ____ ❑ Check condition of mountings Check frost protection of solar fluid (every 2 years) Concentration Check pH (7.0 - 9.5) Protection to ºC Next check date ❑ Check condition of all pipework + insulation Date / / ____ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ l/min bar bar ____ ____ ____ ____ ❑ ❑ Date / / ____ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ l/min bar bar ____ ____ ____ ____ ❑ ❑ Date / / ____ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ l/min bar bar ____ ____ ____ ____ ❑ ❑ Date / / ____ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ l/min bar bar ____ ____ ____ ____ ❑ ❑ Date / / ____ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ l/min bar bar ____ ____ ____ ____ ❑ ❑ Date / / ____ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ l/min bar bar ____ ____ ____ ____ ❑ ❑ Date / / ____ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ l/min bar bar ____ ____ ____ ____ ❑ ❑ Date / / ____ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ l/min bar bar ____ ____ ____ ____ ❑ ❑ Date / / ____ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ l/min bar bar ____ ____ ____ ____ ❑ ❑ Date / / ____ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ l/min bar bar ____ ____ ____ ____ ❑ ❑ Date / / ____ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ l/min bar bar ____ ____ ____ ____ ❑ ❑ Date / / Please complete the following record after any Servicing or Maintenance of the system. Refer to the Commissioning Record charts for details of the original system for reference. Refer to Maintenance section for recommended Maintenance periods MAINTENANCE ____ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ l/min bar bar ____ ____ ____ ____ ❑ ❑ Date / / Servicing and maintenance record 39 Maintenance Maintenance requirements To ensure the continued optimum performance of the Megaflo Eco SolaReady it should be regularly maintained. This is of particular importance in hard water areas or where the water supply contains particulate matter. Maintenance should be carried out by a competent person and any replacement parts used should be authorised Megaflo Eco SolaReady spare parts. It is recommended that maintenance is carried out every 12 months and includes the checks detailed below. In hard water areas consideration should be given to periodically descaling the immersion heater elements. To do this the Megaflo Eco SolaReady unit will need to be drained, details below list how to drain the unit and remove the immersion heater(s). Check operation of Safety Valves Slowly open the Temperature and Pressure Relief Valve by twisting its cap for a few seconds. Check water is discharged and that it flows freely through the tundish and discharge pipework. Check valve reseats correctly when released. NOTE: The water discharged may be very hot. Repeat the procedure for the 8 Bar Pressure Relief Valve. Clean the strainer The strainer is incorporated within the Pressure Reducing Valve housing of the Cold Water Combination Valve (see Figure 33, page 43). To inspect and clean the strainer: urn off the isolating valve on the 3 Bar Pressure Reducing Valve by turning the blue handle (if fitted in this position) so it lies T 90º to the direction of flow or main stop cock to the house. Open the lowest hot tap in the system to relieve the system pressure. sing a spanner unscrew the pressure reducing cartridge and remove the moulded housing. The strainer will be removed with U the cartridge. Wash any particulate matter from the strainer under clean running water. Replace the strainer and screw the Pressure Reducing Valve cartridge into the moulded housing. Close hot tap, turn on isolating valve by turning handle so it lies parallel to the direction of flow. Check for leaks. Draining the Megaflo Eco SolaReady unit Descaling immersion heater(s) Open the cover(s) to the immersion heater housing(s) and disconnect wiring from immersion heater(s). Disconnect the two wires to the element tabs. Remove the thermostat capillaries, 2 or 4 depending on which unit being serviced. Unscrew immersion heater backnut(s) and remove immersion heater from the unit. A key spanner is supplied with the Megaflo Eco SolaReady unit for easy removal / tightening of the immersion heater(s). Over time the immersion heater gasket may become stuck to the mating surface. To break the seal insert a round shafted screwdriver into one of the pockets on the immersion heater and gently lever up and down. MAINTENANCE Switch off the electrical supply to the immersion heater(s) and shut down the boiler on indirect units. Turn off the mains water supply to the Megaflo Eco SolaReady unit. Attach a hosepipe to the drain cock having sufficient length to take water to a suitable discharge point below the level of the unit, at least one metre below the unit is recommended. Open hot water tap nearest to the Megaflo Eco SolaReady to relieve the system pressure. Open drain cock. If water fails to drain from the Megaflo Eco SolaReady vent the unit by manually opening the Temperature / Pressure Relief Valve. Carefully remove any scale from the surface of the element(s). DO NOT use a sharp implement as damage to the element surface could be caused. Ensure sealing surfaces are clean and seals are undamaged, if in doubt fit a new gasket. Replace immersion heater(s) ensuring the lower (right angled) element hangs vertically downwards towards the base of the unit. It may be helpful to support the immersion heater using a round shafted screwdriver inserted into one of the thermostat pockets whilst the backnut is tightened. Replace the thermostat(s) by carefully plugging the two male spade terminations into the corresponding terminations on the element. Rewire the immersion heater(s) in accordance with Figure 14, page 17 or Figure 15, page 18. Close and secure terminal cover(s). Expansion Vessel Charge Pressure Remove the dust cap from the top of the expansion vessel. Check the charge pressure using a tyre pressure gauge. The charge pressure (with the system depressurised) should be 0.3MPa (3 bar). If it is lower than the required setting it should be re-charged using a tyre pump (schrader valve type). DO NOT OVER CHARGE. Re-check the pressure and when correct replace the dust cap. Refilling system DO NOT switch on the immersion heater(s) or boiler until the system has been completely refilled. Close the drain tap. With the hot tap open, turn on mains water supply. When water flows from the hot tap allow to flow for a short while to purge air and to flush through any disturbed particles. Close hot tap and then open successive hot taps in system to purge any air. The electrical supply can now be switched on. 37 Check solar heat transfer fluid The heat transfer fluid must be checked every year with regard to its antifreeze and pH value. (7.0 - 9.5) – Check antifreeze using antifreeze tester. Target value is approximately -21 deg C (40% concentration). Replace fluid if necessary. % volume Density at 20ºC g/cu.cm Refractive Index nD20 Frost protection ºC 25 1.023 1.3627 -10 30 1.029 1.3690 -14 35 1.033 1.3747 -17 40 1.037 1.3801 -21 45 1.042 1.3855 -26 50 1.045 1.3910 -32 Maintenance of the collector The collector or the collector array must be checked/serviced annually to check for any damage, leaks or contamination. In areas where there may be a build up of dirt on the collector, only non-abrasive cleaning materials and methods should be used to clean the collectors and mounting system components. Benchmark™ On completion of any maintenance or service of the Megaflo Eco SolaReady, the Benchmark™ “Installation, Commissioning and Service Record” should be filled in to record the actions taken and the date the work was undertaken (page 50). Fault finding The Fault finding flow diagrams (Fig 32) will enable operational faults to be identified and their possible causes rectified. Any work carried out on the Megaflo Eco SolaReady unvented water heater and its associated controls MUST be carried out by a competent installer for unvented water heating systems. In case of doubt contact the Megaflo Eco SolaReady Service Department. 14.0 Fault finding 14.1 Fault finding Failures with error message 1. Some system failure modes can be recognised by the solar differential temperature controller and will be indicated by an error message on the controller display. Refer to the table below for details of possible errors and suggested measures to rectify. MAINTENANCE Solar differential temperature controller error messages 1. Some system failure modes can be recognised by the solar differential temperature controller and will be indicated by an error message on the controller display. Refer to the table below for details of possible errors and suggested measures to rectify. NOTE: These error messages wil automatically reset when the fault has been rectified. In the case of the circulation error NOTE: These error messages wil automatically reset when the fault has been rectified. In the case of the circulation error this this may take a few minutes to clear once normal flow has may take a few minutes to clear once normal flow has resumed. resumed. Error representation on display Possible reasons ! ! • Sensor wire broken flashing flashing Circulation error: no flow + ! 38 • Check wire • Sensor defect • Check sensor resistance, if necessary exchange sensor • Sensor missing • Check parameter settings and sensor installation requirements • Short circuit in sensor wire • Check wire • Sensor defect • Check sensor resistance, if necessary exchange sensor • Error in pump connection • Check cabling • Pump defect • Exchange pump • Air in the system • Check the float of the flow meter moves when the system runs (if visible) • Connection with flow meter defect • Check wire • Sensor wire broken • Check wire flashing Additionally at energy productivity measurement: Measures • Sensor defect • Check sensor resistance, if necessary exchange sensor • Sensor missing • Check parameter settings and sensor installation requirements Figure 32 – Fault finding flow diagrams No hot water flow Is the mains water supply turned on? NO Turn on mains water supply YES Is the strainer blocked? YES Turn off water supply. Remove and clean filter (see Fig 33) NO Is the cold water combination valve correctly fitted? Water from hot taps is cold NO Check and refit as required. Observe direction of flow arrows YES Contact an authorised service engineer for further advice Is the mains power supply switched on? NO Switch on mains power supply YES Insufficient solar gain with no auxiliary heating on YES Check auxiliary heat source is switched on. Controller to provide heat in event insufficient solar gain NO YES Check if tripped. Reset by pressing button NO Indirect Programmer set to central heating only YES Check. Set to a CH programme NO NO Check. Switch on supply to immersion heater YES NO Boiler working correctly Check boiler operation. If faulty contact boiler manufacturer YES Has indirect thermal cut-out operated? Direct Is immersion heater switched on? MAINTENANCE Has solar thermal cut-out operated? Has immersion heater thermal cut-out operated? YES Check. If tripped reset by pressing button NO YES Check. If tripped reset by pressing button NO Is motorised valve working correctly? NO Check wiring and plumbing connections to motorised valve. Check operation and replace if necessary YES Contact an authorised service engineer for further advice 39 Water discharge from temperature and pressure relief valve Water from hot taps is lukewarm Heating fault – water may have cooled YES Is the discharge intermittent? Follow steps as for cold water NO Expansion valve not opening at correct pressure. Replace expansion relief valve cartridge NO YES Blending valves set too low Is the discharge continuous and very hot? Check and adjust if necessary. Recommended setting – 55ºC NO Thermostat settings too low YES YES Thermal control failure. Switch off power to all heat sources. Do not turn off water supply. When cool check all thermal controls NO YES Contact an authorised service engineer for further advice Check and adjust if necessary. Recommended settings 60-65ºC NO Water discharge from DHW expansion valve Contact an authorised service engineer for further advice Is the discharge intermittent? YES Check DHW expansion vessel charge pressure. Recharge as necessary NO Is the discharge continual? YES MAINTENANCE Is the pressure reducing valve working correctly? Check pressure from pressure reducer is 3 bar (±0.5 bar). If not, replace PRV cartridge YES Remove expansion valve cartridge and check seating. If necessary replace expansion valve YES Is expansion valve seat damaged? NO Contact an authorised service engineer for further advice Pump symbol on controller rotates but pump does not operate Is controller to pump connection correct and secure? NO Check connections and rectify as necessary YES NO Is the pump seized? YES Pump fault – replace pump 40 NO Can the impeller be revolved using a screwdriver after removing the air bleed screw? YES NO Free impeller and replace air bleed screw No display at solar differential temperature controller Is the 230/240V~ power supply correctly wired? NO Connect any wiring faults YES Is the 230/240V~ power supply switched on? NO Switch on power supply YES Has thermal cut-out on cylinder operated? YES Reset thermal cut-out. Investigate cause of operation and rectify. NOTE: Allow the cylinder to cool or draw off the hot water before resetting NO Is the 230/240V~ power supply at the controller terminal bock? NO Check wiring and rectify YES NO Replace internal fuse Is internal fuse operational? YES Controller fault – replace controller Resistance table PT1000. Are sensor cables laid alongside voltage cables? YES The correct function of temperature sensors can be checked on the basis of the following temperature resistance table with a resistance measuring instrument: Separate sensor cables from mains cables (min. 50mm recommended) or use shielded cable NO Have sensor cables been lengthened with unshielded cable? YES Use shielded cable to extend sensor cable lengths NO Do sensors give correct temperature v resistance readings? YES Controller fault – replace controller NO Are temperature sensor connections correctly made? YES Sensor fault – replace sensor NO Rectify sensor connections Temperature in °C Resistance in Ohm -30 882 -20 921 -10 960 0 1000 10 1039 20 1077 30 1116 40 1155 50 1194 60 1232 70 1271 80 1309 90 1347 100 1385 120 1461 140 1535 200 1758 MAINTENANCE Displayed temperatures on controller vary greatly over short time intervals 41 Servicing Important S ervicing should only be carried by authorised heateam engineers, Agents or by installers competent in the installation and maintenance of unvented water heating systems and solar water heating systems. Any spare parts used MUST be authorised Megaflo Eco SolaReady parts. Disconnect the electrical supply before removing any electrical equipment covers. NEVER bypass any thermal controls or operate system without the necessary safety valves. Water contained in the Megaflo Eco SolaReady unit may be very hot, especially following a thermal control failure. Caution must be taken when drawing water from the unit. Spares Spare parts SERVICING A full range of spare parts are available for the Megaflo Eco SolaReady range. Refer to the Technical Data label on the unit to identify the model installed and ensure the correct part is ordered. 42 Description Part no. Cold Water Inlet Control Kit - Complete 95:605:894 3 Bar Pressure Reducing Valve - Complete 95:605:886 8 Bar Pressure Relief Valve - Complete 90:605:893 Stopcock 95:605:885 Immersion Heater Backnut 95:607:940 Immersion Heater Gasket 95:611:822 Immersion Heater Key 95:607:861 Immersion Heater Blanking Plug 95:605:881 Titanium Immersion Heater - Upper 95:606:989 Titanium Immersion Heater - Lower 95:606:988 Direct Combined Thermostat / Thermal Cut-Out 95:612:717 Tundish 95:605:838 Direct Titanium Control Cover 95:614:119 Mounting Plate (Direct) 95:607:929 3 way Terminal Block (Direct) 95:607:932 3 way Terminal Block (Solar) 95:607:939 Insulation Set ( T & P Relief Valve ) 95:607:922 Indirect Accessory Kit (210L, 250L & 300L) 95:970:554 Mounting Plate (Indirect) 95:607:931 Indirect Control Cover 95:614:118 6 way Terminal Block 95:607:933 2 Port Motorised Valve (22mm Connections ) 95:605:819 Incoloy Immersion Heater - Lower 95:606:984 Titanium Immersion Heater - Upper 95:606:985 Indirect Combined Thermostat and Cut-out 95:612:716 Temperature / Pressure Relief Valve 95:605:810 Set of Compression Nuts and Olives 95:607:838 Drain Valve 1/4 Turn 95:605:051 Mounting Plate, Solar 95:607:937 1/2”BSP Sensor Pocket Assembly Short 95:607:938 Twin Solar Temperature Pocket 95:606:990 Expansion Vessel (24 Litre) 95:607:612 Solar Thermal Cut-Out 95:612:698 Sensor Cable 13m 5122237 Diverter Valve 95:605:078 18 - Exploded View 3 Bar Inlet Controlvalve Valve FigureFigure 33 – Exploded view of 3ofbar inlet control Pressure Reducing Valve Cartridge (3 Bar) Strainer Mesh 3 Bar Pressure Reducing Valve - Complete 95:605:886 Figure 34 – 19 Exploded view ofof8 8bar relief Valve valve Figure - Exploded View Barpressure Pressure Relief Expansion Relief Cartridge SERVICING 8 Bar Pressure Relief Valve, Complete 95:605:893 43 Indirect units Direct units 1/2”BSP Sensor Pocket Assembly Short 95:607:938 B C C C B A A or Pocket Assembly Short 95:607:938 B C 5 Pin Combined Thermostat and Thermal Cut-Out 95:612:716 B1/2”BSP Sensor Pocket Assembly Short D 95:607:938 A A A B 5 Pin Combined Thermostat and Thermal Cut-Out 95:612:716 E Mounting Plate (Indirect) 95:607:929 Terminal cover 95:614:118 C Combined Thermostat and Thermal Cut-Out 95:612:717 6 Way Terminal Block 95:607:933 Gasket 95:611:822 Combined Thermostat and Thermal Cut-Out 95:612:717 Incoloy Immersion Heater, Lower 95:606:984 Backnut 95:607:869 Mounting Plate (Direct) 95:607:929 Mounting Plate (Indirect) 95:607:929 Terminal cover 95:614:118 Mounting Plate (Solar) 95:607:937 Direct Combined Thermostat and Thermal Cut-Out 95:612:717 Solar Thermal Cut-Out 95:612:698 E 1/2”BSP Sensor Pocket Assembly Short 95:607:938 A B C Twin Solar Temperature 6 Way Terminal Block 95:607:933 Gasket 95:611:822 Backnut 95:607:869 Incoloy Immersion Heater, Lower 95:606:984 SERVICING Backnut 95:607:869 Mounting Plate (Solar) 95:607:937 Backnut 95:607:869 44 Backnut 95:607:940 Terminal cover 95:614:119 Solar Thermal Cut-Out 95:612:698 Probe Pocket Plate Titanium Immersion 95:606:990 Heater (Upper) 95:606:989 Terminal cover A A 3 Way Terminal Block 95:607:932 Three Way Terminal Block 95:607:932 Combined Thermostat and Thermal Cut-Out 95:612:717 Mounting Plate (Direct) 95:607:929 Mounting Plate (Indirect) 95:607:929 Backnut 95:607:940 B Gasket 95:611:822 5 Pin Combined Thermostat and Thermal Cut-Out 95:612:716 Terminal cover 95:614:118 95:614:119 Direct Combined Thermostat and Thermal Cut-Out 95:612:717 Gasket 95:611:822 D B Gasket 95:611:822 Gasket 95:611:822 C 6 Way Terminal Block 95:607:933 Gasket 95:611:822 Backnut 3 Way Terminal Block 95:607:869 95:607:932 Twin Solar Temperature Probe Pocket Plate 95:606:990 A Terminal cover 95:614:118 Titanium Immersion Heater (Lower) Three Way Terminal Block 95:606:988 95:607:932 Incoloy Immersion Heater, Lower 95:606:984 Mounting Plate (Solar) 95:607:937 Solar Thermal Cut-Out 95:612:698 See Figure 21 for Solar Control parts (page 32) Direct Combined Thermostat and Thermal Cut-Out 95:612:717 Mounting Plate (Direct) 95:607:929 E 1/2”BSP Sensor Pocket Assembly Short 95:607:938 D EC A Titanium Immersion Heater (Upper) 95:606:989 Terminal cover 95:614:119 E D Terminal cover 95:614:119 Gasket 95:611:822 Backnut 95:607:940 C Backnut 95:607:940 Gasket 95:611:822 1/2”BSP Sensor Pocket Assembly Short 95:607:938 Terminal cover 95:614:119 C A D Three Way Terminal Block Direct Combined 95:607:932 Thermostat and Thermal Cut-Out 95:612:717 Mounting Plate (Direct) 95:607:929 Direct Combined Thermostat and Thermal Cut-Out Mounting Plate (Direct) 95:612:717 95:607:929 Backnut 95:607:940 E Titanium Immersion Heater (Upper) 95:606:989 Three Way Terminal Block 95:607:932 D Gasket 95:611:822 Titanium Immersion Heater (Lower) Three Way Terminal Block 95:606:988 95:607:932 Direct Combined A Thermostat and Thermal Cut-Out 95:612:717 Mounting Plate (Direct) 95:607:929 Terminal cover 95:614:119 See Figure 21 for Solar ControlGasket parts (page 32) Backnut 95:607:940 95:611:822 Mounting Plate (Direct) 95:607:929 Titanium Immersion Heater (Lower) Three Way Terminal Block 95:606:988 95:607:932 E SERVICING A Direct Combined Thermostat and Thermal Cut-Out 95:612:717 See Figure 21 for Solar Control parts (page 32) Titanium Immersion Heater (Upper) 95:606:989 Terminal cover 95:614:119 Terminal cover 95:614:119 Backnut 95:607:940 Three Way Terminal Block 95:607:932 Gasket 95:611:822 Mounting Plate (Direct) 95:607:929 Backnut 95:607:940 Direct Combined Thermostat and Thermal Cut-Out 95:612:717 Gasket 95:611:822 D 45 Spares Temperature gauge 720689101 Insulation 720689701 Safety group 720690901 Solar primary circulating pump 720688101 Solar differential temperature controller 720709001 Insulation insert 720689901 Solar expansion vessel self-sealing connection 5119779 SERVICING Solar expansion vessel 24 litres 5119548 46 DHW expansion vessel 95:607:612 Spares Stockists Electric Water Heating Co. 2 Horsecroft Place Pinnacles Harlow Essex CM19 5BT Tel: 0845 0553811 E-Mail: [email protected] SPD Special Product Division Units 9 & 10 Hexagon Business Centre Springfield Road Hayes Middlesex UB40 0TY Tel: 0208 5730574 Parts Center Network 65 Business Park Bentley Wood Way Burnley Lancashire BB11 5ST Tel: 01282 834403 www.partscenter.co.uk Newey & Eyre Specialist Products Division Please Contact your Local Branch UK Spares Ltd Unit 1155 Aztec West Almondsbury Bristol BS32 4TF Tel: 01454 620500 William Wilson Ltd 780 South Street Whiteinch Glasgow G14 0SY SERVICING Unit 3A Tel: 0141 434 1530 47 48 SERVICING SOLAR THERMAL COMMISSIONING CHECKLIST This Commissioning Checklist is to be completed in full by the competent person who commissioned the Solar Thermal System and associated equipment 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 Commissioned by (print name) 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) Confirmation that required areas of the installation have been notified to Local Authority Building Control (LABC) a). Initials of commissioning engineer b). Competent Persons Scheme (CPS) details or details of LABC direct notiification Confirmation that panels have been installed without lessening the structure, weathering and fire resistance of the roof in accordance with the relevant Building Regulations and standards. Initials of commissioning engineer COLLECTOR DETAILS Make of collector Model of collector Serial number of each collector: (if more than 6 collectors please append additional sheet) i. ii. iii. Iv. v. vi. INSTALLATION DETAILS Solar System Operating Pressure bar (cold) Expansion or drain back vessel size Expansion vessel air/nitrogen charge bar (cold) litres Operating correctly: Yes Treated for leaks and flushed: Yes Filled and purged for air: Yes System heat transfer fluid details: What type/make of heat transfer fluid used? System volume What is the fluid mix: Water % Glycol Frost protection provided to °C litres % Is the installation in a hard water area (above 200ppm)? Yes No If yes, has a water scale reducer been fitted or has Tmax been limited to 60˚C? Yes No What type of scale reducer has been fitted? Air purged from solar primary circuit: Yes Primary circuit valves and air vent(s) set to final operating positions: Pump speed setting recorded: Speed setting Max flow rate Solar primary circuit pressure relief valves tested for correct operation: Yes Yes litres/min Location Device for limiting hot water temperature outlets has been fitted: Yes Type No Location All exposed pipework lagged in accordance with regulations using suitably temperature rated materials Yes For unvented hot water storage cylinder, will controls stop solar fluid circulation in the event of cylinder overheating? Yes SOLAR SYSTEM CONTROLS Make and model of DTC Temperature sensors checked and operating correctly Differential Temperature Controller (DTC) settings: Yes T on T max °C °C T off °C Other DTC Settings Thermostat located in back-up heating zone of cylinder Yes No Have optimum settings for HW controls been explained to the customer? Yes No Does this include Legionella Bacteria protection settings with back up heating system to bring boiler volume to 60°C for an hour once a day? Yes No Electrical installation is accordance with BS7671 Yes Location of electrical isolation switch to solar control/pump unit The heating and hot water system complies with the appropriate Building Regulations Yes The system and associated products have been installed and commissioned in accordance with the manufacturer’s instructions Yes The efficient operation of system and its 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 SERVICING ALL INSTALLATIONS 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) www.centralheating.co.uk 49 50 SERVICING Notes SERVICING 51 Customer service Telephone: 0344 8711535 Facsimile: 0344 8711528 E-mail: [email protected] Megaflo Hurricane Way Norwich Norfolk NR6 6EA 3600 6219 Issue 03 ">
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