PremierPlus Solar Fitting Instructions
Contents
1. Expansion valve l Expansion valve HOT OUTLET outlet 15mm S y Cold mains n connection A 22mm b Ne D SECONDARY 7 CIRCULATION PUMP her ee SS par Eaton idu md Outlet connection SECONDARY 22mm RETURN Pressure reducing valve cartridge 3 5bar RETURN CONNECTION FIG 3 General dimensions and features SOLAR PRIMARY RETURN 2 SOLAR PRIMARY FLOW 3 AUXILLARY BOILER RETURN 4 INDIRECT MODELS ONLY AUXILLARY BOILER FLOW INDIRECT MODELS ONLY 5 T amp P VALVE SECONDARY RETURN BOOSTIMMERSION HEATER 6 DIRECT MODELS ONLY 8 AUXILLARY CONTROL HOUSING 9 INLET 1 7 10 SOLAR CONTROL HOUSING TYPE HEATING NOMINAL TIME CAPACITY DIRECT litres INDIRECT Litres to 40 C 1 Testing conformes to BS EN 12897 2006 2 Direct heating times assume use of lower element only and auxillary cylinder volume being heated 3 Coil primary flow rate of 15L min with a flow temperature at 80 C 2 C INSTALLATION DISCHARGE It is a requirement of Building Regulation G3 that any discharge from an unvented system is conveyed to where it is visib2. SPECIFICATION ADVICE HOTLINE t 01603 420220 e specifier heatraesadia com AFTER SALES SERVICE t 0344 871 1535 e heatraesadiaservice heateam co uk w heatraesadia com s product 30 YEAR WARRANTY A 30 OUR NATIONWIDE NETWORK OF CUSTOMER SUPPORT ENGINEERS Heatrae Sadia has its very own dedicated nationwide network of highly trained customer support engineers so you can have peace of mind that we re always here to help PRODUCT RANGE Full specification details on all our products are available to download from our website To support our corporate responsibility and sustainability charters and reduce our printed material we encourage you to download product brochures from our website In designing these files we have taken into account the need to access data on screen If you would like to receive a printed copy of our full product catalogue please call our literature hotline on 01603 420127 Heatrae Sadia Heating may introduce modifications to their products from time to time Consequently the details given in this brochure are subject to alteration without notice PN 7032983 Issue 4 O Heatrae Sadia 2015
3. Therefore the maximum permitted length equates to 14m As the actual length is 7m a 28mm D2 copper pipe will be satisfactory WARNINGS Under no circumstances should the factory fitted temperature pressure relief valve be removed other than by a competent person To do so will invalidate any guarantee or claim The cold water combination valve assembly must be fitted on the PremierPlus water supply to the PremierPlus cylinder e No control or safety valves should be tampered with or used for any other purpose The discharge pipe should not be blocked or used for any other purpose Thetundish should not be located adjacent to any electrical components Table 4 Valve outlet size Minimum size of Minimum size of Maximum discharge pipe discharge pipe resistance D1 D2 from tundish allowed expressed asa length of straight pipe I E no elbows or bends up to 9m up to 18m up to 27m Fig 4 Typical discharge Safety device e g Temperature relief valve Metal discharge pipe D1 from Discharge pipe D2 from tundish with continuous fall See Building Table 4 and worked example Temperature relief valve to tundish Tundish 300mm minimum Regulation G3 section 3 56 Fixed grating Resistance created by each elbow or bend Discharge below fixed grating Building Regulation G3 section 3 61 gives alternative points of discharge gully FIG 5 Typ
4. Company Name Company Name Telephone Number Telephone Number Comments Comments Signature Signature SERVICE 7 Date Engineer Name SERVICE 8 Date Engineer Name Company Name Telephone Number Company Name Telephone Number Comments Comments Signature SERVICE 9 Date Engineer Name Signature SERVICE 10 Date Engineer Name Company Name Company Name Telephone Number Telephone Number Comments Comments Signature Signature HEATRAESADIA SMARTER CLEANER WARMER Electric Water Heating Co 2 Horsecroft Place Pinnacles Harlow Essex CM19 5BT Tel 0845 0553811 E Mail sales ewh co uk SPD Special Product Division Units 9 amp 10 Hexagon Business Centre Springfield Road Hayes Middlesex UB4 OTY Tel 020 8606 3567 Parts Center Tel 0344 292 7057 www partscenter co uk Newey amp Eyre Unit 3 5 Wassage Way Hampton Lovett Ind Estate Droitwich Worcestershire WR9 ONX Tel 01905 791500 Fax 01905 791501 UK Spares Ltd Unit 1155 Aztec West Almondsbury Bristol BS32 4TF Tel 01454 620500 Alternatively contact your local supplying merchant or wholesale branch or use our online stockist finder at www interpartspares co uk Please follow us online ORSO SS 6 hot water AA association CHARTER MEMBER
5. When discharge stops check all thermal controls replace if faulty Water discharges from T amp P relief valve Oxygenated water Water from a pressurised system releases Milky water oxygen bubbles when flowing The milkiness will disappear after a short while Table 6 Spares List sscwenow nr De rund sess Cold water combination 95 605 897 valve complete Cold water combination 95 605 900 body Pressure reducing valve cartridge 3 5bar ci n 11 Temperature Pressure Relief 95 605 810 Valve Expansion vessel 12 litre 100 120 and 150 litre 95 607 863 models Expansion vessel 18 litre 170 and 210 litre models 29 09 ROA Expansion vessel 24 litre 250 and 300 litre models 25 907 012 Blanking plate assembly 95 605 881 Nut amp olive pack 4 of each 95 607 838 Direct Combined thermostat 95 612 717 17 and Thermal cut out and Thermal cut out 19 6 Way Terminal block 95 607 933 3 Way Terminal block 95 607 932 Cold Mains Motorised 2 port valve 95 605 819 Terminal Shroud 95 606 993 Solar Temperature probe pocket plate 95 607 064 Thermal Cut out 95 612 698 Outlet Connection 15mm Fig 13 Indirect Solar Fig 14 Direct Solar Guarantee Terms and Conditions WARNING Should the factory fitted temperature and pressure relief valve be tampered with or removed your guarantee will be invalidated Neither the Distributor nor Manufacturer sh
6. 2 to 6 of at end of life Indirect PES2101 5250 PES3001 Energyefficiencyclass LEE D 105 0 torage volume V in litres 300 0 Table Technical parameters in accordance with European Commission regulations 814 2013 and 812 2013 LO 1 0 INTRODUCTION The Premier Plus Solar is a purpose designed unvented solar water heater The unit has a stainless steel inner vessel which ensures an excellent standard of corrosion resistance The outer casing is a combination of resilient thermoplastic mouldings and corrosion proofed steel Plastisol sheet All Premiers are insulated with CFC HCFC free polyurethane foam to meet the latest European heat loss requirements see Table 3 The unit is supplied complete with all the necessary safety and control devices needed to allow connection to the PremierPlus solar cylinder All these components are pre adjusted This appliance complies with the requirements of the CE marking directive and is KIWA approved to show compliance with Building Regulations Section G3 The following instructions are offered as a guide to installation which must be carried out by a competent plumbing and electrical installer in accordance with Building Regulation G3 The Building Standards NOTE Prior to installation the unit should be stored in an upright position in an area free from excessive damp or humidity Table 2 Unit weights Table 3 Standing heat losses Nominal Standing Heat Loss Capacit
7. Check Expansion Vessel pre charge pressure The vessel is supplied pre charged to 3 5 bar to match the con trol pressure of the Pressure Reducing Valve The pre charge pressure is checked using a car tyre gauge by unscrewing the plastic cap opposite the water connection e Check all connections for tightness including the immersion heater s An immersion heater key spanner is supplied for this purpose Ensure the drain cock is CLOSED e Open a hot tap furthest from the Santon PremierPlus solar e Open the mains stop cock to fill the unit When water flows from the tap allow to run for a few minutes to thoroughly flush through any residue dirt or swarf then close the tap Open successive hot taps to purge the system of air 7 2 SYSTEM CHECKS e Check all water connections for leaks and rectify as necessary e Remove the Pressure Reducing Valve headwork to access the strainer mesh clean and re fit e Manually open for a few seconds each relief valve in turn checking that water is discharged and runs freely through the tundish and out at the discharge point Ensure that the valve s reseat satisfactorily 7 3 SOLAR PRIMARY CIRCUIT Fill the solar primary circuit following the instructions provided with the solar hydraulic controls The cylinder tem perature control probe supplied with the solar controller must be fully inserted into the pocket in the lower controls housing and the cable securely clamped Heating by the solar
8. 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 INSTRUCTIONS SECTION ON PAGES 24 AND 25 FOR IMPORTANT INFORMATION WITH RESPECT TO THE BENCHMARK SCHEME IMPORTANT PLEASE READ ALL THESE INSTRUCTIONS BEFORE COMMENCING INSTALLATION THE INFORMATION CONTAINED IN THESE INSTRUCTIONS DETAILS HOW TO CONNECT THE PREMIER PLUS SOLAR CYLINDER TO A SOLAR PRIMARY CIRCUIT OTHER CONTROLS WILL BE NECESSARY TO PROVIDE CONTROL OVER THE SOLAR PRIMARY CIRCUIT REFER TO THE INSTRUCTIONS SUPPLIED WITH THE SOLAR CONTROLS AND ANCILLARY EQUIPMENT FOR DETAILS OF HOW TO INTEGRATE THEM WITH THE PREMIER PLUS SOLAR CYLINDER GENERAL REQUIREMENTS IMPORTANT THIS APPLIANCE CAN BE USED BY CHILDREN AGED FROM 8 YEARS AND ABOVE AND PERSONS WITH REDUCED PHYSICAL SENSORY OR MENTAL CAPABILITIES OR LACK OF EXPERIENCE AND KNOWLEDGE IF THEY HAVE BEEN GIVEN SUPERVISORY OR INSTRUCTION CONCERNING USE OF THE APPLIANCE IN A SAFE WAY AND UNDERSTAND THE HAZARDS INVOLVED CHILDREN SHALL NOT PLAY WITH THE APPLIANCE CLEANING AND USER MAINTENANCE SHALL NOT BE MADE BY CHILDREN WITHOUT SUPERVISION WARNING Do not switch on if there is a pos
9. 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 63 The discharge would consist of high temperature water and steam Asphalt roofing felt and non metallic rainwater goods may be damaged by such discharges Worked example of discharge pipe sizing Fig 5 page 10 shows a G1 2 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 3 page 10 Maximum resistance allowed for a straight length of 22mm copper discharge pipe D2 from a G1 2 temperature relief valve is 9 0m 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 G1 2 temperature relief valves equates to 18m Subtract the resistance of 4 No 28mm elbows at 1 0m each 4 0m
10. electronically operated Discharge pipe D2 3 56 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 EE see Diagram 1 G3 Fig 5 page 10 and b be installed with a continuous fall thereafter of at least 1 in 200 3 57 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 58 The 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 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 soon bends must be taken into account in calculating the flow resistance See Diagram 1 Table 1 G3 Fig 5 amp Table 3 page 10 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
11. of this document Servicing should only be carried out by competent persons in the installation and maintenance of unvented water heating systems Any spare parts used MUST be authorised Santon 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 PremierPlus cylinder may be very hot especially following a thermal control failure Caution must be taken when drawing water from the unit SPARE PARTS A full range of spare parts are available for the PremierPlus cylinder range See Table 6 Page 22 Refer to the technical data label on the unit to identify the model installed and ensure the correct part is ordered You will need to quote the serial number which is printed on the data label FAULT FINDING The fault finding chart below will enable operational faults to be identified and their possible causes rectified Any work carried out on the PremierPlus cylinder 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 service support see contact details on back page WARNING DO NOT TAMPER WITH ANY OF THE SAFETY VALVES OR CONTROLS SUPPLIED WITH THE PREMIERPLUS CYLINDER AS THIS WILL INVALIDATE ANY GUARANTEE Table 5 Fault finding chart Mains water supply off Check and open stop cock Str
12. system to purge any air When completely full and purged check system for leaks The heating source immersion heater s boiler or solar primary circuit can then be switched on 8 7 BENCHMARK LOG BOOK On completion of any maintenance or service of the Premier Plus the Benchmark Installation Commissioning and Service Record Log Book should be filled in to record the actions taken and the date the work was undertaken INSPECTION The immersion heater boss can be used as an access for inspecting the cylinder internally 9 0 USER INSTRUCTIONS 10 1 WARNINGS IF WATER ISSUES FROM THE TEMPERATURE PRESSURE RELIEF VALVE ON THE SANTON PREMIER PLUS SOLAR SWITCH OFF ELECTRICAL SUPPLY TO THE IMMERSION HEATER S DIRECT UNITS SHUT DOWN THE BOILER INDIRECT UNITS AND SHUT DOWN THE SOLAR PRIMARY CIRCUIT DO NOT TURN OFF ANY WATER SUPPLY CONTACT A COMPETENT INSTALLER FOR UNVENTED WATER HEATERS TO CHECK THE SYSTEM DO NOT TAMPER WITH ANY OF THE SAFETY VALVES FITTED TO THE SANTON PREMIER PLUS SYSTEM IF A FAULT IS SUSPECTED CONTACT A COMPETENT INSTALLER 10 2 TEMPERATURE CONTROLS SOLAR Temperature control of the solar primary coil is by means of solar differential temperature controller This will usually have been set during commissioning to give a storage temperature of approximately 60 C Refer to user instructions supplied with the controller for details of how to adjust this if required 10 3 TEMPERATURE CONTROLS DIRECT UNIT IMMERSIO
13. their curtilages D2 to be connected 3 60 The 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 bea 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 Dodd ene PB to Class S of BS 7291 2 2006 or cross linked polyethylene PE X to Class S of BS 7291 an d be continuously marked with a warning that no sanitary appliances should be connected to the pipe Note 1 Plastic pipes should be joined and assembled with fittings appropriate to the circumstances in which they are used as set outin 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 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 toa trapped gully with the end of the pipe below a fixed grating and
14. ACK TO THE MAINS EARTH SUPPLY 3 ASSUMES BASIC BOILER WITH EXTERNAL PUMP 4 USE COPPER LINKS SUPPLIED TO MAKE CONNECTIONS BETWEEN TERMINALS 5 DO NOT MOUNT WIRING CENTRE ON CYLINDER 6 THE ABOVE DIAGRAM IS FOR GUIDANCE ONLY SANTON ACCEPT NO LIABILITY FOR ANY LOSS OR DAMAGE ARISING FROM ANY ERRORS OR OMISSIONS THAT MAY BE INADVERTENTLY CONTAINED WITHIN THIS DIAGRAM THE VARIOUS EQUIPMENT MANUFACTURERS SHOULD BE CONSULTED TO CONFIRM THE CORRECT OPERATION OF THEIR PRODUCTS WITHIN THE SYSTEM Figure 11 2 x 2 port valve system S Plan PREMIERPLUS INDIRECT PREMIERPLUS DHW THERMAL CONTROLS ZONE VALVE PROGRAMMER SUPPLIED FITTED SUPPLIED KEY BI BLUE Br BROWN G GREY ORANGE GY GREEN YELLOW DHW DOMESTIC HOT WATER HTG HEATING ROOM STAT ZONE VALVE HTG BOILER PUMP NOTES 1 A DOUBLE POLE ISOLATING SWITCH MUST BE INSTALLED IN THE MAINS SUPPLY 2 ALL EARTH CONNECTIONS MUST BE LINKED BACK TO THE MAINS EARTH SUPPLY 3 USE COPPER LINKS SUPPLIED TO MAKE CONNECTIONS BETWEEN TERMINALS 4 DO NOT MOUNT WIRING CENTRE ON CYLINDER 5 THE ABOVE DIAGRAM IS FOR GUIDANCE ONLY SANTON ACCEPT NO LIABILITY FOR ANY LOSS OR DAMAGE ARISING FROM ANY ERRORS OR OMISSIONS THAT MAY BE INADVERTENTLY CONTAINED WITHIN THIS DIAGRAM THE VARIOUS EQUIPMENT MANUFACTURERS SHOULD BE CONSULTED TO CONFIRM THE CORRECT OPERATION OF THEIR PRODUCTS WITHIN THE SYSTEM WIRING CENTRE SUPPLIED Un 7 0 COMMISSIONING 7 1 FILLING THE UNIT WITH WATER e
15. HEATRAESADIA SMARTER CLEANER WARMER PremierPlus Solar Unvented Hot Water Cylinder Installation and User Manual N PREMIER PLUS SOLAR INSTALLATION AND SERVICING INSTRUCTIONS PLEASE LEAVE THIS MANUAL WITH THE UNIT FOR FUTURE REFERENCE CONTENTS SECTION CONTENT PAGE 1 INTRODUCTION ssa 4 2 GENERAL REQUIREMENTS Lian 5 3 INSTALLATION GENERAL iis esse eo ekke Kie Ee GE ee dk da os pe Ge dik Ge be 6 4 INSTALLATION SOLAR PRIMARY 13 5 INSTALLATION DIRECT UNITS ss osse siese soes es sk n oe es GN on se 13 6 INSTALLATION AUXILLARY HEATING COIL 14 7 we u bxTell og 16 8 MAINTENANCE ipsa iran 17 9 USER IUNSTRUCTIONS EES RE GE ER GN OS EDE DE eo GR Ne 19 10 FAULT FINDING AND SERVICING eee 20 11 GUARANTEE emm 25 benchmari THE MARK OF QUALITY FOR THE INSTALLATION COMMISSIONING AND SERVICING OF DOMESTIC HEATING AND HOT WATER SYSTEMS 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
16. MMISSIONING CHECKLIST This Commissioning Checklist is to be completed in full by the competent person who commissioned the storage system as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference Failure to install and commission this equipment to the manufacturer s instructions may invalidate the warranty but does not affect statutory rights Customer Name Telephone Number Address Oylinder Make and Model Cylinder serial Number _ MENSE EA AA ENE N MEE SE N NA N NE ENE N N EE Commissioned by print name Registered Operative ID Number Company Name Telephone Number Company Address Commissioning Date To be completed by the customer on receipt of a Building Regulations Compliance Certificate Building Regulations Notification Number if applicable ALL SYSTEMS PRIMARY SETTINGS indirect heating only Is the primary circuit a sealed or open vented system Sealed il What is the maximum primary flow temperature C ALL SYSTEMS What is the incoming static cold water pressure at the inlet to the system bar Has a strainer been cleaned of installation debris if fitted Yes No Is the installation in a hard water area above 200ppm Yes No If yes has a water scale reducer been fitted Yes No What type of scale reducer ha
17. N HEATER S A combined adjustable thermostat and thermal cut out is provided for each immersion heater The thermostat is factory set to give a water storage temperature of approx 55 to 60 C Access to the thermostat can be made by opening the immersion heater cover DISCONNECT THE ELECTRICAL SUPPLY BEFORE OPENING THE COVER S Temperature adjustment is made by inserting a flat bladed screwdriver in the slot on the adjustment disc on top of the thermostat and rotating The adjustment range on the spindle represents a temperature range of 10 to 72 C see Fig 7 page 11 for details If in any doubt contact a competent electrician DO NOT bypass the thermal cut out s in any circumstances 10 4 TEMPERATURE CONTROLS INDIRECT UNITS Fig 8 The Santon PremierPlus solar Indirect units are fitted with an Indirect thermostat and thermal cut out These controls must be wired in series with the 2 port motorised zone valve supplied to interupt the flow of primary water around the heat exchanger coil when the control temperature has been reached The controls are located within the upper grey terminal housing along with the immersion heater thermostat The thermostat is factory set to give a water storage temperature of approx 55 to 60 C Access to the thermostat can be made by opening the terminal housing cover DISCONNECT THE ELECTRICAL SUPPLY BEFORE OPENING THE COVER Temperature adjustment is made by inserting a flat bladed screwdriver in the adju
18. PASS THE THERMAL CUT OUT S IN ANY CIRCUMSTANCES Ensure the two male spade terminations on the underside of the combined thermostat and thermal cut out are pushed firmly onto the corresponding termina tions on the element plate assembly In case of difficulty contact Santon service Tel 0844 8711530 6 0 INSTALLATION AUXILLARY HEATING COIL 6 1 PLUMBING CONNECTIONS Indirect units require the following pipework connections Cold water supply to and from inlet controls Outlet to hot water draw off points Discharge pipework from valve outlets to tundish Connection to the auxillary primary circuit Primary connections are 22mm compression However 3 4 BSP parallel threaded fittings can be fitted to the pri mary coil connections if required 6 2 ELECTRICAL SUPPLY FIG 6 All Indirect units are fitted with a 3KW immersion heater and a combined thermostat and thermal cut out to control the primary heating source The PremierPlus Solar MUST be earthed All wiring to the unit must be installed in accordance with the latest IEE Wiring Regulations and the supply circuits must be protected by a suitable fuse and double pole isolating switch with a contact separation of at least 3mm in both poles All connections are made to the terminal block located under the terminal cover mounted on the side of the unit The supply cable s must be routed through the cable grip s in the terminal housing DISCONNECT FROM MAINS SUPPLY BEFORE REMOVING AN
19. RCUIT The lower solar coil of the Premier Plus Solar must be connected to a fully pumped solar primary circuit The con nections are suitable for 22mm copper pipe direct to the compression fittings provided The connections are also threaded 3 4 BSP male parrallel should BSP be required The solar primary circuit should have its own dedicated circulating pump and safety controls which must be installed as per the manufacturers instructions 4 2 CONTROL OF PRIMARY CIRCUIT Temperature control of the PremierPlus solar must be carried out using a suitable proprietory solar controller programmer The cylinder temperature sensing probe supplied with the solar controller should be fully insterted into the pocket provided on the PremierPlus solar and its cable secured using the cable clamps on the controls housing see Fig 8 Connection to the solar controller should be in accordance with manufacturers instructions The solar controller should be programmed to give a cylinder temperature of approximately 60 C maximum 70 C The solar controller and solar primary circulation pump must be wired via the over temperature thermal cut out mounted in the lower solar controls housing see Fig 9 This will ensure that the heat input to the solar coil is in terrupted in the event of the cylinder over heating There must also be suitable check non return valves installed in the solar primary flow and return to prevent the possibility of any thermo syphonin
20. Y COVERS DO NOT BYPASS THE THERMAL CUT OUTS IN ANY CIRCUMSTANCES Ensure the thermostat and thermal cut out sensing bulbs are pushed fully into the pockets on the element plate assembly 6 3 BOILER SELECTION The boiler should have a control thermostat and non self resetting thermal cut out and be compatible with unvented storage water heaters Where use of a boiler without a thermal cut out is unavoidable a low head open vented primary circuit should be used The Feed and Expansion cistern head above the PremierPlus solar should not exceed 2 5m 6 4 AUXILLARY CIRCUIT CONTROL The 2 port motorised valve supplied with the PremierPlus solar indirect units MUST be fitted to the primary auxillary circuit flow to the PremierPlus solar heat exchanger and wired in series with the indirect thermostat and thermal cut out fitted to the unit Primary circulation to the PremierPlus Solar heat exchangers must be pumped gravity circulation WILL NOT WORK Figure 10 2 port valve in conjunction with a 3 port mid position valve system Y Plan PREMIERPLUS INDIRECT THERMAL CONTROLS PREMIERPLUS DHW 2 PORT PROGRAMMER SUPPLIED FITTED VALVE SUPPLIED KEY BI BLUE Br BROWN G GREY ORANGE GY GREEN YELLOW DHW DOMESTIC HOT WATER HTG HEATING WIRING CENTRE SUPPLIED ROOM STAT 3 PORT MID POSITION VALVE BOILER PUMP NOTES 1 A DOUBLE POLE ISOLATING SWITCH MUST BE INSTALLED IN THE MAINS SUPPLY 2 ALL EARTH CONNECTIONS MUST BE LINKED B
21. ainer blocked Turn off water supply Remove strainer and No hot water flow clean Cold water combination valve incorrectly Check and refit as required fitted Direct immersion heater not switched on Check and switch on Direct immersion heater thermal cut out Check reset by pushing button on thermostat has operated Indirect programmer set to central heat Check set to domestic hot water programme ing only Water from hot tap x is cold Indirect boiler not working Check boiler operation If fault is suspected consult boiler manufacturer s instructions Indirect thermal cut out has operated Check reset by pushing button on thermostat Check operation of indirect thermostat Indirect motorised valve not connected Check wiring and or plumbing connections to correctly motorised valve INTERMITTENTLY See Maintenance section for re charging of Expansion vessel charge pressure has expansion vessel procedure reduced below 3 5bar or set to high Water discharges CONTINUALLY Check pressure from cold water combination from expansion cold water combination valve pressure valve If greater than 3 5bar replace pressure valve reducer not working correctly reducing valve Expansion valve seat damaged Remove expansion valve cartridge check condition of seat If necessary fit new expansion valve Thermal control failure Switch off power to immersion heater s and NOTE water will be very hot shut down boiler DO NOT turn off water supply
22. all be responsible for any consequential damage howsoever caused Warranty Terms Heatrae Sadia warranty guarantees the water heater cylinder against faulty manufacture or materials for a period of two years from the date of purchase including parts and labour This two year warranty is extended to five years for the cold water control valve and to 30 years for the stainless steel inner vesssel These guarantees are valid provided that e The water heater has been installed by a competent engineer and as per the instructions contained in the installation manual and all relevant Codes of Practice and Regulations in force at the time of installation e Any disinfection has been carried out in accordance with BS EN 806 5 2012 e Should the factory fitted temperature and pressure relief valve be tampered with or removed your guarantee will be invalidated e The water heater has not been modified in anyway other than by our approved engineers The water heater has only been used for the storage of wholesome sanitary water max 250mg l chloride The water heater unit has not been subjected to excessive pressure beyond the guidelines detailed in the installation instructions e water heater unit has not been subjected to frost nor has it been tampered with or been subject to misuse or neglect e No factory fitted parts have been removed for un authorised repair or replacement The Benchmark commisioning checklist service record includ
23. ed in this product guide has been completed Regular maintenance has been carried out by a competent person in accordance with the requirements set in the maintenance section of the installation manual and any replacement parts used should be approved spare parts e Within 60 days of purchase the owner completes and returns the certificate supplied to register the product Evidence of purchase and date of supply must be submitted upon making a claim e The guarantee is not valid outside of the United Kingdom The warranty does NOT cover Consequential damages or profit loss which may arise from a defect Warranty claims have no delaying effect on the payment dates and other demands Your water heater warranty covers you for a direct replacement and labour in the event that the unit fails prematurely as a result of a proved manufacturing defect In order that this can be achieved full access to replace the unit is essential If it is found that access can not be achieved the warranty will be limited to the replacement of the unit only and subsequent labour charges would not be met under the warranty For installations outside of the United Kingdom please contact either the Heatrae Sadia Export Department on Tel 44 1603 420271 or Baxi International on Tel 44 1926 478323 for further details of the guarantee terms and conditions applicable This guarantee does not affect your statutory rights 25 MAINS PRESSURE HOT WATER STORAGE SYSTEM CO
24. ever up and down 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 bladed screwdriver inserted into one of the thermostat pockets whilst the backnut is tightened Replace thermostats capillaries into pockets rewire check close and secure immersion heater housing cover s 8 5 PREMIER PLUS SOLAR EXPANSION VESSEL CHARGE PRESSURE Remove the dust cap on top of the vessel Check the charge pressure using a tyre pressure gauge The pressure with system de pressurised should be 3 5bar 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 8 6 RE COMMISSIONING Check all electrical and plumbing connections are secure Close the drain cock With a hottap open turn on the cold water supply and allow unit to refill DO NOT switch on the immersion heater s or boiler until the unit is full When water flows from the hot tap allow to flow for a short while to purge air and flush through any disturbed particles Close hot tap and then open successive hot taps in
25. fety valves e In areas where the water consistently contains a high proportion of solids e g suspended matter that could block the strainer unless adequate filtration can be ensured The PremierPlus solar cylinder is to be used for the storage of wholesum water max 250mg l Chloride Un ON 3 0 INSTALLATION GENERAL 3 1 3 2 3 3 3 4 3 5 3 6 PIPE FITTINGS All pipe fittings are made via 22mm compression fittings directly to the unit The fittings are threaded 3 4 BSP male parallel should threaded pipe connections be required COLD FEED A 22mm cold water supply is recommended however if a 15mm 1 2 supply exists which provides sufficient flow this may be used although more flow noise may be experienced A stopcock or servicing valve should be incorporated into the cold water supply to enable the Santon PremierPlus solar and its associated controls to be isolated and serviced COLD WATER COMBINATION VALVE FIG 1 The cold water combination valve can be connected anywhere on the cold water mains supply prior to the expansion vessel see Fig 5 The cold water combination valve is installed as a complete one piece unit The valve incorporates the pressure reducer strainer expansion valve and check valve Ensure that the valve is installed with the direction offlow arrows pointing in the right direction No other valves should be placed between the cold water combination valve and the PremierPlus solar unit The ex
26. g if the solar circulation is stopped 5 0 INSTALLATION DIRECT UNITS 5 1 PLUMBING CONNECTIONS Direct units require the following pipework connections e Cold water supply to and from inlet controls Outlet to hot water draw off points Discharge pipework from valve outlets to tundish 5 2 ELECTRICAL SUPPLY FIG 6 Premier Plus solar units are fitted with two 3kW immersion heaters Except 170Ltr as standard It is recommended that these should be wired via a suitable controller to BSEN 60730 The Premier Plus Solar MUST be earthed All wiring to the unit must be installed in accordance with the latest IEE Wiring Regulations and the 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 Live and Neutral connections are made directly onto the combined thermostat and thermal cut out located under the terminal cover s mounted on the side of the unit The Earth connection should be made to the earth connection located to the side of the immersion heater boss es The supply cable must be routed through the cable gland located on the unit casing beneath the terminal housing DO NOT operate the immersion heaters until the Santon Premier Plus Solar has been filled with water 5 3 SAFETY DISCONNECT FROM THE MAINS SUPPLY BEFORE REMOVING ANY COVERS Never attempt to replace the immersion heater s other than with the recommended Santon immersion heater s DO NOT BY
27. ical installation schematic SECONDARY RETURN TAPPING IF T amp P RELIEF EXPANSION COLD WATER TO HOT REQUIRED VALVE VESSEL COMBINATION OUTLETS VALVE BALANCED 4 COLD WATER WATER BOOST ELEMENT CONNECTION SUPPLY AUXILLARY IF REQUIRED CONTROL Housing gt ET HAHA AUXILLARY PRIMARY e ISOLATING RETURN VALVE NOT lt eke SUPPLIED AUXILLARY PRIMARY gt FLOW SOLAR TUNDISH CONTROLS SOLAR PRIMARY HOUSING ee RETURN lt V PIPE SOLAR PRIMARY gt A FLOW 7 A DRAIN COCK NOT SUPPLIED NOTE AUXILLARY HEATING COIL INLET FITTED ON SPP190B TO SPP300B MODELS ONLY Fig 6 Direct Electrical connections schematic Direct Wiring Layout 1 oo ce 1 42 Fig 7 Adjustment details THERMAL CUT OUT RESET BUTTON 1 5mm 3 Core HOFR sheathed cable SPINDLE POSITIONS D MINIMUM TEMP 10 C amp MAXIMUM TEMP 72 C APPROX 60 C ROTATE SPINDLE CLOCKWISE FOR TEMPERATURE INCREASE AND COUNTER CLOCKWISE FOR TEMPERATURE DECREASE TEMPERATURE ADJUSTING SPINDLE Fig 8 Control Housing Details Element Connections Indirect control 1 5mm 3 Core wiring HOFR sheathed cable THERMAL CUT OUT Fig 9 PROBE CONTROL ASSEMBLY SOLAR CONTROLLER POWER SUPPLY TO SOLAR CONTROLLER 4 0 INSTALLATION SOLAR PRIMARY 4 1 CONNECTION TO PRIMARY CI
28. ing Regulations Yes The system has been installed and commissioned in accordance with the manufacturer s instructions Yes The system controls have been demonstrated to and understood by the customer Yes The manufacturer s literature including Benchmark Checklist and Service Record has been explained and left with the customer Yes Commissioning Engineer s Signature Customer s Signature To confirm satisfactory demonstration and receipt of manufacturer s literature All installations in England and Wales must be notified to Local Authority Building Control either directly or through a Competent Persons Scheme A Building Regulations Compliance Certificate will then be issued to the customer benchmari THE MARK OF QUALITY FOR THE INSTALLATION COMMISSIONING AND SERVICING OF DOMESTIC HEATING AND HOT WATER SYSTEMS 6 Heating and Hotwater Industry Council HHIC www centralheating co uk SERVICE 1 Date Engineer Name Company Name SERVICE 2 Date Engineer Name Company Name Telephone Number Telephone Number Comments Comments Signature Signature SERVICE 3 Date Engineer Name SERVICE 4 Date Engineer Name Company Name Company Name Telephone Number Telephone Number Comments Comments Signature Signature SERVICE 5 Date Engineer Name SERVICE 6 Date Engineer Name
29. irement in order to ensure safe working and optimum performance It is essential that the relief valve s are periodically inspected and manually opened to en sure no blockage has occurred in the valves or discharge pipework Similarly cleaning of the strainer element and replacement of the air in the expansion vessel will help to prevent possible operational faults The maintenance checks described below should be performed by a competent installer on a regular basis e g annually to coincide with boiler maintenance 8 2 SAFETY VALVE OPERATION Manually operate the temperature pressure relief valve 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 Water discharged may be very hot Repeat the above procedure for the expansion valve 8 3 STRAINER Turn off the cold water supply boiler and immersion heaters The lowest hot water tap should then be opened to de pressurise the system Remove the pressure reducing valve by unscrewing it housing Pull the reducing valve cartridge from the check valve housing to access the strainer mesh Wash any particulate matter from the strainer under clean water Re assemble ensuring the seal is correctly fitted DO NOT use any other type of sealant 8 4 DESCALING IMMERSION HEATER S Before removing the immersion heater s the unit must be drained Ensure the water electrical supply boiler and solar p
30. le 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 Regulation G3 The G3 Requirements and Guidance section 3 50 3 63 are reproduced in the following sections of this manual 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 Water may drip from the discharge pipe of the pressure relief device 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 G3 REQUIREMENT there shall be precautions to ensure that the hot water discharged from safety devices is safely conveyed to where itis visible but will not cause danger to persons in or about the building Notes 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 Discharge pipe D2 can now be plumbed into the soil stack but only soil stacks that can handle temperatures of 99 C or greater should be used The following extract is taken from the latest G3 Regulations Discharge pipe D1 3 50 Safety devices such as tempera
31. ll be required On large systems due to the increase in system water content it may be necessary to fit an additional expansion vessel to the secondary circuit This should be done if the capacity of the secondary circuit exceeds 10 litres Pipe capacity copper 15mm 0 13 l m 10 litres 77m 22mm o d 0 38 I m 10 litres 26m 28mm 0 55 l m 10 litres 18m In direct electric installations where a secondary circulation is required particular attention should be paid by the installer to maintain the return water temperature guidelines state that a minimum of 55 C return temperature is advisable Factors such as but not limited to secondary circulation flow rates minimising heat loss of all second ary circuit pipework and timed operation during periods of high demand are critical to the correct operation and longevity of the heating element s and thermostats Secondary circulation is not recommended for direct electric units using off peak tariffs where the secondary circula tion is not controlled in conjunction with the heat source as performance can be affected 3 7 OUTLET The hot water outlet is a 22mm compression fitting located at the top of the cylinder Hot water distribution pipe work should be 22mm pipe with short runs of 15mm pipe to terminal fittings such as sinks and basins Pipe sizes may vary due to system design FIG 1 Cold water combination valve FIG 2 Secondary circulation connection
32. nce e Ensure that the base chosen for the Premier Plus Solar is level and capable of permanently supporting the weight when full of water see Table 2 2 3 OUTLET TERMINAL FITTINGS TAPS ETC The Premier Plus Solar can be used with most types of terminal fittings It is advantageous in many mixer showers to have balanced hot and cold water supplies In these instances a balanced pressure cold water connection should be placed between the cold water combination valve and the Premier Plus water heater Outlets situated higher than the PremierPlus Solar will give outlet pressures lower than that at the heater a 10m height difference will result in a 1 bar pressure reduction at the outlet 2 4 LIMITATIONS The Premier Plus unvented solar water heater should not be used in association with any of the following e 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 e Ascending spray type bidets or any other class 1 back syphonage risk requiring that a type A air gap be employed e Steam heating plants unless additional and appropriate safety devices are installed e Situations where maintenance is likely to be neglected or safety devices tampered with e Water supplies that have either inadequate pressure or where the supply may be intermittent e Situations where it is not possible to safely pipe away any discharge from the sa
33. ormal working temperature 60 C recommended see Fig 7 for adjustment details If necessary the temperature can be adjusted by inserting a flat bladed screwdriver in the adjustment knob located on top of the thermostat mounting bracket see Fig 7 page 11 and rotating The minimum thermostat setting is 10 C The adjustment range on the spindle represents a temperature range of 10 to 72 C Check the operation of the indirect thermostat and 2 port motorised valve and that no water has issued from the expansion relief valve or temperature pressure relief valve during the heating cycle 7 6 BENCHMARK LOG BOOK On completion of the installation and commissioning of the PremierPlus solar the Benchmark Installation Com missioning and Service Record Log Book should be completed and signed off by the competent installer or com missioning 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 log book to accept completion The log book should be left with the customer along with these instructions The log book includes sections that should be filled out when any subsequent service or maintenance operation is carried out on the Premier Plus system 8 0 MAINTENANCE 8 1 MAINTENANCE REQUIREMENTS Unvented hot water systems have a continuing maintenance requ
34. pansion valve connection must not be used for any other purpose DRAIN TAP A suitable draining tap should be installed in the cold water supply to the PremierPlus solar unit between the cold water combination valve and the heater at as low a level as possible It is recommended that the outlet point of the drain pipework be at least 1 metre below the level of the heater this can be achieved by attaching a hose to the drain tap outlet spigot EXPANSION VESSEL The expansion vessel accommodates expansion that results from heating the water inside the unit The unit is pre charged at 3 5 bar The expansion vessel must be connected between the cold water combination valve and the Santon PremierPlus solar see Fig 5 The location of the expansion vessel should allow access to recharge the pres sure as and when necessary this can be done using a normal car foot pump It is recommended that the expansion vessel is adequately supported An expansion vessel wall mounting bracket is supplied for this purpose NOTE DO NOT USE THE POTABLE WATER EXPANSION VESSEL SUPPLIED WITH THE PREMIER PLUS SOLAR FOR ANY OTHER PURPOSE IT IS NOT SUITABLE FOR USE ON A SOLAR PRIMARY CIRCUIT SECONDARY CIRCULATION If secondary circulation is required it is recommended that it be connected to the Premier as shown in Fig 2 The secondary return pipe should be in 15mm pipe and incorporate a check valve to prevent backflow A suitable WRAS approved bronze circulation pump wi
35. primary circuit is controlled by the solar controller refer to the manufacturers installation instructions for details of how to set up and connect the solar primary circuit The solar controller should be programmed to give a maximum storage temperature in the PremierPlus solar of 70 C 60 C is recommended to minimise scaling 7 4 DIRECT UNITS Switch on electrical supply to the immersion heater s and allow the PremierPlus solar to heat up to normal working temperature 60 C recommended see Fig 7 page 11 for adjustment details 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 The adjustment range on the spindle represents a temperature range of 10 to 72 C Check the operation of thermostat s and that no water has issued from the expansion relief valve or temperature pressure relief valve during the heating cycle 7 5 Secondary Heating Coil Fill the indirect secondary circuit following the boiler manufacturer s commissioning instructions To ensure the PremierPlus solar auxillary heat exchanger is filled the 2 port motorised valve supplied should be manually opened by moving the lever on the motor housing to the FLUSHING ONLY setting When the circuit is full return the lever to the NORMAL USE position Switch on the boiler ensure the programmer is set to Domestic Hot Water and allow the Premier Plus Solar to heat up to a n
36. rimary circuit are OFF before draining Attach a hosepipe to the drain cock having sufficient length to take water to a suitable discharge point below the level of the unit Open a hot tap close to the unit and open drain cock to drain unit Direct models Open the cover s to the immersion heater housing s and disconnect wiring from the thermostat mounted on top of the immersion heater s Remove the thermostat capillary sensors by carefully pulling outwards from the immer sion heater Unscrew immersion heater backnut s and remove immersion heater from the unit A key spanner is supplied with the PremierPlus solar unit for easy removal tightening of the immersion heater s Over time the im mersion heater gasket may become stuck to the mating surface To break the seal insert a round bladed screwdriver into one of the pockets on the immersion heater and gently lever up and down Indirect models Open the cover s to the immersion heater housing s and disconnect wiring from immersion heater s Remove thermostat capillary sensors from the pockets on the immersion heater Unscrew immersion heater backnut s and remove immersion heater from the unit A key spanner is supplied with the Premier Plus Solar 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 bladed screwdriver into one of the pockets on the immersion heater and gently l
37. s been fitted What is the hot water thermostat set temperature C What is the maximum hot water flow rate at set thermostat temperature measured at high flow outlet l min Time and temperature controls have been fitted in compliance with Part L of the Building Regulations Yes Type of control system if applicable Y Plan S Plan L Other LI Is the cylinder solar or other renewable compatible Yes No What is the hot water temperature at the nearest outlet All appropriate pipes have been insulated up to 1 metre or the point where they become concealed Yes UNVENTED SYSTEMS ONLY Where is the pressure reducing valve situated if fitted What is the pressure reducing valve setting co M bar Has a combined temperature and pressure relief valve and expansion valve been fitted and discharge tested Yes No The tundish and discharge pipework have been connected and terminated to Part G of the Building Regulations Yes Are all energy sources fitted with a cut out device Yes No Has the expansion vessel or internal air space been checked Yes No THERMAL STORES ONLY What store temperature is achievable What is the maximum hot water temperature C ALL INSTALLATIONS The hot water system complies with the appropriate Build
38. sibility that the water in the heater is frozen OPERATIONAL SUMMARY Indirect models in conformance with BS EN 12897 2006 Maximum mains water supply pressure to 3 bar pressure reducing valve 1 6MPa 16 bar Operating pressure pressure reducing valve set pressure non adjustable 0 35MPa 3 5 bar Expansion vessel pressure 0 35MPa 3 5 bar Expansion relief valve setting 0 6MPa 6 bar T amp P relief valve setting 1 0MPa 90 C 10 bar Primary coil operating pressure max 1 0MPa 10 bar Immersion heater rating a c supply only 3kW 240V 50Hz 2 8kW 230V 50Hz Primary Coil ratings See Table 2 page 4 Based on a primary flow rate of 15L min and a flow temperature of 80 C Pressure drop across coils 0 02MPa 0 2bar Storage capacity See Table 2 Page 4 Weight when full See Table 2 Page 4 Note Although the primary coil pressure rating is 1 0Mpa 10 bar the 2 port zone valve supplied with the cylinder is only rated 0 86MPa 8 6 bar If the cylinder is to be plumbed into a system delivering 1 0MPa 10 bar a suitable 2 port zone valve will have to be sourced bee Premier Plus Solar PESITOD LO e Ke he declared load profile The water heating energy efficiency class of the model 37 7 38 0 The annual electricity consumption in kWh 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 See section
39. stment knob and rotating The minimum thermostat setting is 10 C The adjustment range on the spindle represents a temperature range of 10 to 72 C see Fig 7 page 11 for details If in any doubt contact a competent electrician On indirect units an immersion heater is also provided for use should the indirect heat source be shut down for any purpose The immersion heater control temperature is set using the immersion heater controls see 10 3 for details DO NOT bypass the thermal cut out s in any circumstances 10 5 FLOW PERFORMANCE When initially opening hot outlets a small surge in flow may be noticed as pressures stabilise This is quite normal with unvented systems In some areas cloudiness may be noticed in the hot water This is due to aeration of the water is quite normal and will quickly clear 10 6 OPERATIONAL FAULTS Operational faults and their possible causes are detailed in Section 9 0 It is recommended that faults should be checked by a competent installer The air volume within the expansion vessel will periodically require recharging to ensure expanded water is ac commodated within the unit A discharge of water INTERMITTENTLY from the expansion valve will indicate the air volume has reduced to a point where it can no longer accommodate the expansion 10 0 FAULT FINDING amp SERVICING IMPORTANT After servicing complete the relevant service interval record section of the Benchmark Checklist located on page 24 and 25
40. ture 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 Ne 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 53 Where valves other than the temperature and pressure relief valve from a single unvented hot water system dischargeby 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 54 Thetundish should be vertical located in the same space as the unvented hot water storage system and be fitted as close as possible to and lowerthan the valve with no more than 600mm of pipe between the valve outlet and the tundish Fig 5 amp Table 3 page 10 Note To comply with the Water Supply Water Fittings Regulations the tundish should incorporate a suitable air gap 3 55 Any 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
41. y per day per year litres kWh 24h kWh 365d Nominal Weight of reference capacity unit full Type litres kg ES170 ES210D E PES260 ul g 2 m O v v U TU ES300D 300 362 NDIRECT PES190I ES210I 264 pel PES2501 ii ES300I 300 367 Table Figures measured in accordance with KIWA Test Criteria for compliance with UK Building and Water Regulations 2 0 GENERAL REQUIREMENTS 2 1 COMPONENTS SUPPLIED 1 Premier Plus unvented solar water heater incorporating immersion heater s and thermal controls 2 Factory fitted temperature pressure relief valve 3 Cold water combination valve 4 Expansion vessel and mounting bracket 5 Tundish 6 Motorized valve indirect models only 7 Compression nuts and olives 8 Immersion heater key spanner 2 2 SITING THE UNIT The Premier Plus Solar must be installed vertically Although location is not critical the following points should be considered The Premier Plus Solar should be sited to ensure minimum dead leg distances particularly to the point of most frequent use e Avoid siting where extreme cold temperatures will be experienced All exposed pipe work should be insulated e The discharge pipe work from the safety valves must have minimum fall of 1 200 from the unit and terminate in a safe and visible position e Access to associated controls and immersion heaters should be possible to allow for periodic servicing and maintena
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