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User and Installation Manual Single and Twin Coil Models

1. 1 1 1 1 1 1 501 dwe Gp 1 1 ofojo en j c 1 mn an Sp Ez ERES TWNINYAL ABS AES 225 x08 i 33108 MO i tm m T gt 205095 Q 1 g lt 193 amadu epa diuina LINN 1081N09 i epu Wv3uISvul031 JAVA i 10 1 60 L10 0 1 LAAN YOLNAN T Q 29 electrastream TECHNICAL INFORMATION 3 controllable electric boilers 3 3 2 Typical Power Supply Fig 3 3b shows a typical power supply for economy meters Consult electricity supply company for specific requirements LIVE 1 Electrastream Economy Tariff when available NEUTRAL Normal Tariff at all other times LIVE 2 Normal Tariff for all household circuits except Electrastream ECONOMY CHANGE OVER METER 3 POLE RELAY 3 ISOLATOR EARTH Fig 3 3b Typical Power Supply 30 electrastream controllable electric boilers Building Control Note In some areas it is a criminal offence to install an unvented hot water storage system without notifying the local authority or without the relevant licence Electrical 4 1 1 Water System To install an Electrastream Heating System the installer must be fully competent suitably qualified and hold a relevant unvented certificat
2. COMBINATION VALVE PR VALVE Fig 4 5b Typical GAH Expansion Discharge Arrangement DISCHARGE PIPE D2 METAL FROM TUNDISH To comply with Building Regulations G3 see section 4 5 42 electrastream controllable electric boilers System Pressure COLD SUPPLY TO TAPS THERMOSTATIC SHOWER Z gt THERMOSTATIC MIXING VALVE A MAINS PRESSURE 1 1 1 TPRV 6 B 1 AINS PRESSURE i REDUCING VALVE x L T i HOT SUPPLY TO TAPS O 1 INCOMING SYSTEM PRESSURE MA S WATER COMBINATION VALVE N 1 c w PRESSURE REDUCING _ 1 HEATING PRESSURE GAUGE VALVE set at 3 5 Bar 2 i INTEGRAL NON RETURN VALVE i HEATING TPRV 5 HOT WATER SYSTEM PRESSURE set at 3 Bar BYPASS VALVE ES HEATING SYSTEM PRESSURE Fig 4 6a Pressure Diagram Notes on Pressures 1 The Mains Pressure Reducing Valve is not normally required on standard systems with normal mains pressure however if the mains pressure is more or fluctuates above 4 Bar a Mains Pressure Reducing Valve should be considered The Combi
3. 22 Section 3 Technical Information 3 1 Specifications 23 4 INSTALLATION gt 3 2 Dimensions 25 3 3 Wiring 29 5 COMMISSIONING gt 4 6 System Pressure 43 4 7 Electrastream Connections 44 6 SERVICING gt Section 5 Commissioning 5 1 Commissioning 47 Section 6 Servicing 7 FAULT FINDING D 6 1 Routine Service 50 Section 4 Installation 4 1 Building Control 31 4 2 Electrical 31 4 3 Hot Water System 33 4 4 Heating System 37 4 5 Expansion Discharge 40 Section 7 Fault Finding 1 1 Fault Finding 52 HEALTH amp SAFETY gt Health amp Safety 55 IMPORTANT BEFORE STARTING THE INSTALLATION OF THE ELECTRASTREAM CHECK ALL COMPONENTS HAVE BEEN DELIVERED AND ARE IN SATISFACTORY CONDITION Refer to 1 3 electrastream controllable electric boilers IMPORTANT INFORMATION BEFORE STARTING THE INSTALLATION OF T
4. D C NLA UONEUIQUUOD A 911859 9 Jeg G E 10150719 WOOY jase uoisuedx3 pue Add ueemjaq aq 0 SSA EA ON l Ig assaq uorsuedx3 uneaH ei uondo m e 1 d A Jauajos 1 uoisuedx3 MHA BIEN Ajddns surgu e pp enen pug atus SZ smous A pasuojo JapuljA UML A M __ E x lt sde 0 19 10y JO aunyesad wa 13 LA 218150190 A _ Bunpjos aog n 01 Pleo pasueieg X uiu zz 1 1 1 14 5 5 10 electrastream controllable electric boilers Parts Supplied Note On Electrastream Pre piped units components are supplied already assembled Electrastream Plus only Standard Electrastream systems will be delivered wrapped on single pallet with cylinder together with box containing control box expansion vessels and loose components Pre Plu mbed Electrastream systems will be delivered wrapped on single pallet with cylinder control box expansion vessels and all components fully assembled Electrastream Control C w cylinder temperature sensor Unvented Cylinder Fittings Kit Sized for selected system 9kW Tri core Heater Titanium Combined 3 x 3kW GAH Circulating Pump 230V Single Phase Pump Isolating Valv
5. Electrastream Plus only Good volume which falls away too quickly Check accumulator charge pressure is correct refer to section 4 6 Cold water discoloured Check mains supply it may have been interrupted Check water softener when fitted is operating correctly Check to make sure there is air charge pressure in the accumulator If air is not present suspect faulty accumulator Consult GAH HEATING PRODUCTS oce Electrastream Plus only 92 electrastream controllable electric boilers O Indirect cylinder coils may be fractured consult GAH HEATING PRODUCTS Checkto make sure there is air charge pressure in the accumulator If air is not present suspect faulty accumulator Consult GAH HEATING PRODUCTS Electrastream Plus only Make the system safe Turn off the system at the isolator or consumer unit Turn ona hot tap until it runs cold to reduce the pressure and temperature anu EH i water steam on the radiators ensuring all thermostatic valves are open being seen at the discharge pipe or tundish Contact the installer Investigate possible causes Check there are no restrictions in the hot water pipework Check for loss of pressure in the hot water expansion vessel Check for loss of pressure in the heating expansion vessel Check pressure reducing valve on combination valve see 4 3 3 Check for back feed of high mains pressure from
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7. Code Electrastream BEL125 ream Pre piped BEP125 Electrastream BEL150 ream Pre piped BEP150 Electrastream Pre piped BETP 210 210 litre twin coil 125 litre Electrastream Twin Coil Accumulator BEL125 BEL125P 125 litre Electrastream Pre piped BEP125 BEP125P Model 200 ream BEL150 BEL150P 170 litre 150 litre Electrastream Pre piped BEP150 BEP150P Electrastream Pre piped BETP 210 210P 210 litre twin coil Electrastream Twin Coil Plus m controllable electric boilers electrastrea Q System Layout 1 2 1 Electrastream uJba1jseJj29 3 uomjejpejsuj aieurauag eara eg Bly JOjeOS 9104 c un Jetunsuo HUN 10u09 2 UJ 5 E i afieyosiq C usipun A elo 7 a SOAIPA 9 Auda h yA dung 171 pasuojo N EOS SuL LU AS s 2 1 Pe IPISOUEY WOOY iassan ANP uogeuiquiog A uoisuedx 9 01 oh TIEN mi wooly JOMOUS Add Usemjaq pani aq 0 SeAPA ON 18 9559 uoisuedx3 uondo Fy X Jauayos sde oj jddns yoy p anen Dunejos L 1 _____ m famous Iezsoway D os ong ut DRE d ane
8. ER PRV 6 Bar R DRAIN RGE TO BE COLD MAINS IN CONNECTION 22mm DOMESTIC HOT WATER OUT CONNECTION 22mm HEATING FLOW 22mm CONNECTION IMPORTANT Plumbing must remain as supplied Do not add to or change any plumbing or connections Fig 4 7 Electrastream Pre Piped Connections HEATING EXPANSION VESSEL 10L FRAME TEMPERATURE PROBE CABLE amp OVER TEMPERATURE CUT OUT CABLE HEATING PR VALVE 3 Bar CYLINDER HEATING FLOW CONNECTION OTORISED VALVE HEATING CIRCULATING PUMP amp VALVES CYLINDER TEMPERATURE SENSOR BOX VER TEMPERATURE CUT OUT HERMOSTAT EATING SYSTEM FILLING LOOP ECT ONLY FOR FILLING ae a TRI CORE HEATER 3 qty x 3KW ELEMENTS SUPPORT FRAME HEATING RETURN CONNECTION 22mm SINGLE COIL SHOWN TWIN COIL 210 IS SIMILAR LAYOUT 46 electrastream controllable electric boilers Commissioning IMPORTANT It is the responsibility of the installer to ensure that the Electrastream System is properly commissioned Should the commissioning not be carried out then the manufacturers guarantee and any extended warranty will become null and void The Guarantee Form MUST be completed and returned to GAH HEATING PRODUCTS in the prepaid envelope provided Note DHW Domestic Hot Water The Commissioning
9. electrastream controllable electric boilers heating products User and Installation Manual Single and Twin Coil Models For owners installers and service engineers A complete cost effective solution for Hot and Cold water supply and Electric Central Heating with water filled radiators suitable for Self contained Flats Small Dwellings Offices Home Offices and Granny Annexes APPROVED electrastream controllable electric boilers Important Health and Safety Information for Installers and Service Engineers Health and Safety at Work Act 1974 OTHER MATERIALS Consumer Protection Act 1987 SEALANTS ADHESIVES AND PAINTS COSHH Regulations 1988 Sealants Adhesives and Paints are used in the construction of the Electrastream components When used in the manner for The following information is given as a requirement of the 0 9 q which they are intended they do not present any known hazard above legislation Great care is taken by GAH HEATING PRODUCTS LIMITED to ensure that Electrastream systems are designed and ELECTRIC manufactured to meet general safety requirements when The Cylinder Tri Core Heater Pump Thermostats and Contactor properly used and installed as recommended in this manual Box all have electrical supply of 230V enough to endanger It is the responsibility of Users and Engineers to ensure that life adequate protective clothing and glasses are worn wh
10. the cost of electricity during normal times will be more expensive Therefore avoid setting heating and hot water ON during these periods electrastream controllable electric boilers Note Self Test After 3am each day the unit carries out a self test period for approx 30 minutes This can be overridden if required IMPORTANT Operating the Electrastream during normal tariffs will increase running costs Note The electricity supply company has to make special arrangements to the property s electrical supply to enable Electrastream to be used during both off peak and normal ariffs consult the installing electrician 2 2 7 Setting Heat and Hot Water Requirements Figure below shows a 24 hour clock with typical use of the Electrastream during Off Peak economy 10 settings Midday All times fall within Economy Tariff Start 1 03 00 Start 2 Stop 1 05 00 5am Stop 2 Start 3 Stop 3 14 00 2pm 16 00 4pm 20 00 8pm 21 30 9 30pm Boost E can be used at any time during Economy or Normal Tariff to provide heating and hot water To turn hot water and heating OFF during ON periods auto press twice It will require switching to Auto again when required To turn heating only OFF during ON period auto and during Boost press m It will require switching to Auto again when required To turn hot water only ON during OFF period
11. 24 hr clock SET HEAT1 A HEAT2 A HEAT3 A VALVE V PUMP V THERM Notes Select to turn heating off For Heating On use Boost ndicates Element 1 is ON HEAT 1 Indicates heater element has failed see 2 2 4 ndicates Element 2is ON HEAT 2 Indicates heater element has failed see 2 2 4 ndicates Element 3is ON HEAT 3 Indicates heater element has failed see 2 2 4 ndicates Heating Valve is OPEN ndicates Heating Pump is ON m Heating on ndicates Room Stat is calling for heat ndicates heater test is being performed after midnight this may take up to 30 minutes Z v HEATING Auto Timed amp Notavailable when HOT WATER MODE is Off Off Heating Permanently OFF DOWN BOOST Fig 2 2a Electrastream Control Unit Normal Screen 16 electrastream controllable electric boilers 2 2 2 Display Time Settings NORMAL SCREEN 24 c Boost A Auto On Off Day hh mm v v V SET DOWN BOOST E 1 Time When SET is pressed time settings are Day hh mm displayed for 10 seconds display then reverts m back to normal screen 2 Start 1 Repeat pressing SET to index through hh mm settings 2 Lu 1 gm Use to increment time up XL 4 Start 2 hh mm m r Use to increment time down 5 Stop 2 ES hh mm xU 6 Start 3 Use to select hours hh or lt minutes mm
12. Cylinders can be protected by a frost thermostat To comply with Building Regulations all necessary pipework must be suitably lagged 1 4 9 Handling and Storage The Electrastream system will be delivered fully wrapped and palleted Lift the package carefully using a safe and suitable lifting method Keep the packaging intact and store in a secure dry and weatherproof area prior to installation Tri core Heater Operation Note Refer to 2 2 2 for display settings IMPORTANT On twin coil cylinders the Electrastream tri core heater must be fitted to the upper immersion heater tapping The three elements of the tri core heater are switched on and off by the Electrasteam Control Unit They have a staggered switch on sequence that prevents sudden high load on the power supply The control unit also limits the use of the elements for efficiency When the hot water within the cylinder is within 2 of the set 8 Target 65 C only one element will be on When the hot water within the cylinder is between 2 and 4 C below the set 8 Target 65 C then two elements will be on When the hot water within the cylinder is below 6 C of the set 8 Target 65 C then all three elements will be on 13 electrastream controllable electric boilers System Control Note On twin coil systems the alternative heat source supplements the electric The heating and hot water system is all ele
13. 1 HEATING b RETURN 22mm Cylinder Model Capacity a Sm E n BEL125 125 litres BEL150 150 litres Fig 3 2a Single Coil Cylinder Dimensions 25 4 elect controllable electric boilers 3 2 2 Pre plumbed System Dimensions CLEAR AREA REQUIRED FOR TPRV REMOVAL 250 x 100 POWER IN 100mm MINIMUM ACCESS REQUIRED FOR PRESSURE VALVE Part No 690 CLEAR AREA REQUIRED FOR TRI CORE HEATER REMOVAL 510 x 200 e e mr 1 WATER MAINS IN 22mm Model DHW CONNECTION 22mm Cylinder Size HEATING R HEATING A B ETURN 22mm LOW 22mm PIPES CAN PASS UNDER BETWEEN LEGS Weight Full Weight Empty BEP 125 125 Short 125 litres 1392mm 1243mm 66kg 191kg BEP 150 150 Short 150 litres 1692mm 1543mm 71kg 221kg BEP 125R 125 Long 125 litres 1692mm 1543mm Fig 3 2b Single Coil Pre Plumbed Dimensions 72kg 197kg 26 4 elect controllable electric boilers 3 2 3 Pre plumbed Twin Coil BETP210 System Dimensions CLEAR AREA REQUIRED FOR TPRV REMOVAL 250 x 100 100mm MINIM
14. and pressure gauge when the system is empty zero pressure Expansion vessels are suitable for systems requiring a maximum expansion of 7 litres as detailed above For systems requiring more expansion a second expansion vessel will be required BS7074 Part 1 includes information on this requirement Clearance is required on top of the vessel to access the pressure valve 4 4 7 Filling Loop A Filling Loop comprising a flexible hose double check valve and an isolating valve is supplied for filling and topping up the system MUST BE DISCONNECTED WHEN NOT IN USE Fig 4 4e Heating Expansion Vessel TPR Valve and Filling Loop FIXING BRACKET HEATING EXPANSION VESSEL PRESSURE GAUGE MAINS SUPPLY ISOLATING VALVE HEATING FLOW TPR VALVE DISCHARGE TO TUNDISH NO VALVES DOUBLE CHECK VALVE 38 electrastream controllable electric boilers The filling loop should be fitted between the incoming mains and the heating system return as shown in figs 1 2a 1 2b and 4 4a Locating the filling loop within site of the pressure gauge is recommended however if this is not practical an extra gauge can be fitted adjacent to the filling loop When not in use one of the hose unions must be disconnected as there must not be a permanent connection to the mains supply 4 4 8 Motorized Valve A 2 port motorised valve is supplied this should be fitted in the heating flow from the cylinder directly after the heating PRV take
15. as required Reduced Pressure Check the power to the Electrasteam is ON isolating switch and neon should be No Hot Water Heating ON If not check the RCD or MCB have not tripped If one or both have tripped consult your installer Check for error messages on the Control Unit display see 2 2 3 Check timers and target temperature on Electrastream Control Unit see 2 2b are set correctly heck over temperature cut out see 2 1 3 heck mains supply it may have been interrupted heck cylinder thermostat probe is installed correctly heck 16amp resettable thermal trips and 5 amp fuse in Electrastream Control Unit heck strainers and operation of mixing valve heck cold water combination valve is fitted correctly Hold probe in hand to check temperature rise correct operation of probe OOO00 gt In the unfortunate event of a water leak from the Electrastream cylinder TURN OFF Water Leaks ELECTRIC SUPPLY then turn off the mains water supply to the house via the stop cock Make allowance to store some cold water for necessities Open both cold and hot taps to drain the cylinders of water thus preventing any further leaks and consult your installer Check all isolation valves are fully open O Check in line strainers and operation of mixing valve Check accumulator charge pressure is correct refer to section 4 6 Poor Flow Rate
16. 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 57 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 straight electrastream controllable electric boilers 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 2 m 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 Diagram 1 Typical discharge pipe arrangement 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 See para 3 33 to 3 39 and 3 50 Safety device e g temperature relief valve 600mm maximum 300mm minimum Discharge pipe D2 from tundish with continuous fall See 3 55 Table 3 and worked example Metal discharge pipe D1 from temperature relief valve to tundi
17. being emitted at the discharge pipe or tundish switch the system Off and contact installer refer to Fault Finding section 7 Thermostatic Mixing Valve Fig 2 5a Thermostatic Mixing Valve Servicing 22 The Mixing Valve will be fitted in the supply to the hot taps outlets it may be in a different location than the cylinder This valve mixes hot water from the cylinder with cold water to provide hot water of a constant temperature at the taps The recommended maximum hot water temperature at the taps is 609C The recommended setting of the valve is between No 4 and 6 49 to 589C The Mixing Valve is factory set to the following approximate mixed outlet temperatures Knob Position Min 1 2 3 4 5 6 T Max Output Temp C 279 320 380 440 499 530 580 63 07 Recommended The mixing valve may have specific servicing requirements refer to manufacturers instructions Higher water temperatures of 65 C and above can cause excessive scale in hard water areas WARNING Do not set the water temperature too high as this can cause scalding especially to the young and old It is recommended the system is inspected by an approved engineer once per year The service procedure is included in section 6 electrastream controllable electric boilers Specifications 3 1 1 Cylinder amp Ho
18. feed comes from the cylinder Shuts off the hot water to the taps 2 3 6 Accumulator Isolating Valve ELECTRASTREAM PLUS ONLY Located in the feed from the accumulator Isolates water in accumulator 21 electrastream controllable electric boilers Temperature amp Pressure Relief Discharge Note The Tundish or discharge pipe should remain visible do not box in or cover up a7 AIR BREAK DISCHARGE PIPE Fig 2 4a Tundish The Electrastream hot water cylinder has a Temperature Pressure Relief Valve TPRV in the event of the pressure within the cylinder becoming too high the TPR Valve will vent The cylinder connection for the TPR valve must not be used for any other purpose The heating system has its own Pressure Relief Valve PRV located adjacent to the heating expansion vessel in the event of the pressure within the heating system becoming too high the PRV will vent The combination valve also includes a PRV A Tundish will be fitted in the system this should be located in the same space or compartment as the hot water cylinder This device provides an air break when pressure is being vented from the cylinder TPRV The heating system PRV is normally also connected to the cylinder Tundish alternatively it may have its own When pressure is being vented water steam will be evident at the Tundish and from the discharge pipe of the Tundish In the event of hot water steam
19. inspection No shut off or isolation valves should be fitted between the combination valve and the cylinder 33 electrastream controllable electric boilers 4 3 4 Hot Water Expansion Vessel An Expansion Vessel is supplied for the hot water system this should be fitted to the combination valve which has a BSP port provided for this The expansion vessel must always be open to the system with NO shut off or isolation valves in the connection pipe Clearance is required on top of the vessel to access the pressure valve It is the responsibility of the installer to set the correct pre charge pressure of the vessel ET 22mm SUPPLY FROM MAINS 3 5 Bar PRESSURE REDUCING VALVE 34 BSP PORT FOR EXPANSION VESSEL PRESSURE RELIEF VALVE Set at 6 Bar 22mm SUPPLY TO CYLINDER AND ELECTRASTREAM ACCUMULATOR Fig 4 3b Combination Valve Fig 4 3c Expansion Vessel Connection P 4 3 5 Accumulator Electrastream Plus only The accumulator may be installed at any convenient location within the property outhouse garage loft or basement For optimum efficiency this should be fitted furthest from the incoming mains supply The accumulator should be installed vertically Note The floor must give adequate support to the filled accumulator As Electrastream Plus is a sealed system Accumulators must have frost protection when they are installed where low temperatures the pressure at the taps is n
20. result in damage to the diaphragm If in doubt consult GAH Heating Products AIR CHARGE VALVE SCHRADER ONE BUTYL DIAPHRAGM Fig 5 1a Accumulator Pressure STAGE 9 ACCUMULATOR PRESSURE Accumulators are supplied by GAH with a preset air charge of 2 Bar 28 30psi The Combination Valve supplied with the Electrastream Plus has an integral pressure reducing valve fixed at 3 5 Bar Therefore there is a pressure differential of 1 5 bar between the system pressure and the air charge of the Accumulator When the incoming mains pressure is less than 3 5 Bar the pressure differential will be less than 1 5 Bar and the Accumulator will not fill sufficiently therefore it may be necessary to lower the Accumulator air charge pressure The procedure for changing the Accumulator pressure is given below this can be done before the system has been filled It may be done after the system has been filled and tested providing the incoming main has been turned OFF and the water drained from the Accumulator Failure to do this may result in false pressure reading and damage to the butyl diaphragm If mains pressure is 3 5 Bar or above changing the Accumulator charge pressure will not be necessary Adjusting Air Pressure 9 1 Record mains pressure 9 2 Turn main supply OFF 9 3 Turn on cold outlets to empty Accumulator 9 4 Remove black cap from top of Accumulator check confirm Accumulator pressure with press
21. uorsuedkg Add ueewjeq pay 0 S LA ON 19 eM JOH A JOMOUS 19 JassaA uoisuedx3 Duneap A wuce uondo Ajddns surew Sdej 0 A ddns 10 1M Ld ane J HERREN ee TA J8MOUS n A Pe 4 ulejsfs Buea A ongsouueu 7 RARO ee ee E eee eee eee sde 0 Ajddns pjoo paouejeg Sde 0 J9 eM JOY JO aNjesadwa 81 anjen oly VW ongisouuau A m controllable electric boilers electrastrea Q 1 2 3 Twin Coil 00 082 OLZ 109 UIM 2 UOHEJE SUJ 3reuieuas 29100 22 1 DH yun awnsuog 016108 yue Auouoo3 TEXT WOOY JeMOUS sde 0 Ajddns ft 91042 INQ IND euuau 8 108095 ainjeJaduig JapUl Ag A peyue g UoISI9UJUU 19M07 yun 101009 109 Uleajsenpa 1 winjay unos wg ueq yeay WWW Add pue C 90 0 S AJLA ON M04 MYE X e peuiquio 19 909 11 yeay anewally 4 eDieuosiq jase uoisuedx3 pue Aud used aq 0 ON SOAIEA 9 dwngs IWAS U891Iy uondo
22. use a Hepworth HepvO Self Sealing Waste Valve this must be installed to the D manufacturers specification and building regulations 4 3 2 Cylinder Temperature Sensor amp Over Temperature Cut Out Box The cylinder temperature sensor and over temperature cut out box is an integral part of the Electrastream control system The Electrastream must not be switched on if the box is not fitted The unit consists of a temperature sensor and over temperature cut out device both are TWIN COIL CYLINDER wired back to the Electrastream control unit see wiring diagrams figs 3 3a and 3 3b The box must be fitted to the cylinder with its phial and sensor inserted into the socket provided located above the tri core heater A screw is provided to clamp it securely in place The box is supplied pre wired If the cables need to be extended use suitable rated cables and ensure they are correctly jointed sleeved and covered Fig 4 3a Cylinder Temperature amp Over Temperature Cut Out Box Note 4 3 3 Combination Valve For wiring see figs 3 3a and 3 3b Refer to figs 4 3b and 4 3c The Combination Valve is supplied separate it has to be fitted to the pipework supplying the cylinder For standard configurations see figs 1 2a and 1 2b The valve has an integral 3 5 Bar Pressure Reducing Valve and a 6 Bar Expansion Relief Valve It also has an in line strainer this should be checked as part of routine
23. 30 000 Btu for heating and hot water 1 4 7 Scale Protection IMPORTANT All installations should have a scale protection device fitted and in areas known to have hard water a water softening device is strongly recommended The cylinder is not guaranteed against damage caused by scale Higher water temperatures of 65 C and above can cause excessive scale GAH recommend and promote the use of scale prevention devices and water softeners in areas that are known to have hard water Installed correctly they prolong the life of equipment and help prevent limescale formation in the pipework Water softeners provide the advantages of soft water as well as preventing scale build up on taps and shower heads Water softeners and any mains fed system must be of adequate capacity and should be installed with suitably sized hoses to prevent any possibility of flow reduction 1 4 8 Frost Protection When planning the installation location of both the accumulator and the unvented cylinder consideration must be given to the risk of frost and the use of frost protection The design of the accumulator gives it a degree of frost protection enabling it to be located within the dwelling loft space or garage without further protection The cylinder can also be installed within the dwelling or loft space without further protection Cylinders or accumulators must have frost protection when they are installed where low temperatures could be a potential problem
24. 4 3 1 Unvented Hot Water Cylinder Note The cylinder may be installed at any convenient above ground location within the The Electrastream system must not be property As Electrastream is a sealed system the cylinder is equally effective on any installed in any enclosed space where the floor air temperature could exceed the maximum electrical design ambient of The cylinder must always be installed vertically 30 C Avoid positioning the cylinder where it may be subjected to frost Adequate ventilation should be provided for airing cupboards and enclosed The floor must give adequate support to the filled cylinder compartments Cylinders must have frost protection when they are installed where low temperatures Humidity may also present a problem could be a potential problem see 1 4 8 within airing cupboards Cylinders with legs are supplied with self tapping screws for floor fixing For servicing and cylinder replacement clearance is required all round the cylinder recommended 100mm minimum The cylinder must be fitted with a drain valve this should be as low as possible and able to drain at least 80 of the cylinder s volume The cylinder may be installed below ground i e in a basement providing that the Eu expansion relief discharge pipe is plumbed to a metal receptacle with a suitable pump ed and switch arrangement current Building Regulations give details of this An alternative l is to
25. HE ELECTRASTREAM CHECK ALL COMPONENTS HAVE BEEN DELIVERED AND ARE IN SATISFACTORY CONDITION Refer to 1 3 Delivery Standard Electrastream systems will be delivered wrapped on single pallet with cylinder together with box containing control box and loose components Pre Plumbed Electrastream systems will be delivered wrapped on single pallet with cylinder control box and all components fully assembled Pack should be lifted using suitable sized pallet truck or fork lift truck WEIGHTS OF PACKED CYLINDERS and COMPONENTS Plus P Accumulator Twin Coil Pre Plumbed Systems Single Coil Pre Plumbed Systems Single Coil Systems Model Model Model Pack weight Model Pack weight Pack weight Pack weight BEL125 55kg BEP 125 71kg BETP 210 177kg 200 35kg BEL150 60kg BEP 150 76kg 300 50kg BEP125R 77kg Storage Prior to installation the cylinder and box should remain on its pallet with wrapping intact and stored upright The cylinder and components must be stored safely in a dry frost free environment and protected from accidental damage AN wanna TO THE USER DO NOT remove or adjust any component part of the unvented water heater contact the INSTALLER In the event of hot water steam being emitted at the discharge pipe or tundish switch the system Off and contact installer refer to Fault Finding section 7 If the Electrastream s
26. Procedure should be carried out in 10 stages Stage 1 Electrical Check Stage 2 DHW Pre fill Check Stage 3 Filling DHW System Stage 4 Drain DHW System Stage 5 Cleaning DHW System Stage 6 Heating System Pre fill Check Stage 7 Flushing and Filling Heating System Stage 8 Setting and Testing Controls Stage 9 Accumulator Pressure Stage 10 Handing Over Commissioning Procedure STAGE 1 ELECTRICAL CHECK 1 1 1 5 CHECK THAT ALL WIRING INCLUDING EARTH WIRING HAS BEEN INSTALLED CORRECTLY CONFORMS TO CURRENT REGULATIONS AND A SATISFACTORY ELECTRICAL TEST AND INSPECTION CERTIFICATE HAS BEEN COMPLETED CHECK TRI CORE HEATER COVER ELECTRASTREAM CONTROLLER COVER AND ALL OTHER ELECTRICAL COVERS ARE CORRECTLY FITTED Check Tundish is positioned so that any spillage or spray from the Tundish would not contact any electrical components heck ALL wiring connections have been made heck cylinder temperature sensor is connected to temp sensor terminals 3 amp 4 heck cylinder over temperature cut out is connected to 0 7 terminals 1 amp 2 see figs 3 3a and 3 3b Check the required earth continuity conductors have been fitted CD CD C C C STAGE 2 DHW PRE FILL CHECK 2 1 2 2 2 3 2 4 Check the hot water heating discharge pipes and Tundish are correctly installed to conform to the Building Regulations G3 heck all pipe connectio
27. UM ACCESS REQUIRED FOR PRESSURE VALVE 320 CLEAR AREA REQUIRED FOR TRI CORE HEATER REMOVAL 510 x 200 w 2 ft ol 5 y i H Weight Empty 172 0 Weight Full 382kg gt WATER MAINS IN 22mm HEATING RETURN 22mm HEATING FLOW 22mm DHW CONNECTION 22mm PIPES CAN PASS UNDER BETWEEN LEGS Fig 3 2c Twin Coil BETP210 Pre Plumbed Dimensions 27 electrastream controllable electric boilers 3 2 4 Accumulator Dimensions PRE CHARGE VALVE SCHRAEDER Essential 1 00 Access Fig 3 2d Accumulator Dimensions H2 H TEE FITTING SIZE MAIN A B 28mm 28mm 28mm 22mm 28mm 22mm 15mm 28mm 15mm v Y BASE VENTED TO PREVENT CONDENSATION amp FLOOR FIXING Accumulator Size Maximum H2 Weight Full Model Gross Capacity Water Content D H w Weight Empty 65 volume 200 170 up to 110 litres 535mm 940mm 1040mm 30 4kg 141kg 300 310 up to 198 litres 535mm 1500mm 1600mm 44 5kg 232kg Water content is up to 65 of the Accumulator gross volume dependent on mains pressure Total weight weight empty water content 1kg litre 3 2 5 Electrastream Control Unit Dimensions 265 70 230 F p XG A DUET Y Day hh mm y y y DOCERE un
28. WATER SHUT OFF VALVE COLD SUPPLY TO TAPS f b is 1 i TPRV 6 Bar STOP COCK 4 lt SOFTENER A de HOT SUPPLY TO TAPS NCOMING U i THERMOSTATIC MIXING VALVE MAINS WATER SUPPLY WATER SHUT OFF VALVE ACCUMULATOR i 1 I lt O B O PRV 6 Bar L Cold water storage G 3 TES d wn wn lt a gt a 9 2 CUM 4 d ACCUMULATOR ISOLATION VALVE Fig 2 3b Typical Shut Off Valve Locations Electrastream Plus Note 2 3 1 Stop Cock When opening the stop cock turn the valve Normally located at the point where the mains supply enters the dwelling fully open then close 75 turn this prevents Shuts off the mains water supply to the dwelling the valve sticking 2 3 2 Double Check Valve fitted Normally located after the Stop Cock Prevents water back feeding to main Shuts off the mains water supply to the dwelling Hen 2 3 3 Cold Water Shut Off Valve x pu Located in the cold feed to the taps outlets Shuts off the cold water to the taps outlets 2 3 4 Supply Water Shut Off Valve Wa Normally located where the cold supply connects to the combination valve on the b cylinder OPEN Shuts off the cold supply to the Electrastream system 2 3 5 Hot Water Shut Off Valve Normally located where the Domestic Hot Water
29. alve which is assembled to the unvented indirect hot water cylinder The combination valve has an integral check valve A single check valve is supplied this is only required to be fitted if back syphonage is possible from any item fitted prior to the combination valve Provision should also be provided in the cold supply for 1 Heating system fill 2 Drinking water 3 Water softener when applicable 4 Qutside tap when applicable The combination valve limits the incoming pressure to 3 5 Bar it has an integral non return valve and pressure relief valve PRV Supply to the hot outlets is taken from the cylinder and mixed with cold water by the thermostatic mixing valve this ensures that a safer lower temperature hot water is available at outlets Cold supply to all outlets is taken direct from the main supply If the mains pressure is high over 3 5 Bar a 3 5 Bar pressure reducing valve is recommended 1 4 2 Twin Coil Alternative Heat Source Twin Coil Cylinders have two coils the upper coil is connected to the Electrastream heating system The Electrastream high powered titanium electric tri core heater is positioned about halfway up the cylinder so that it is only used to heat the water in the upper part of the cylinder The lower coil is heated by the chosen alternative heat source e g solar this will heat the water in the whole cylinder when energy is available resulting in optimum efficiency 1 4 3 System Co
30. am 190 electrastrean ELECTRASTREAM CONTROL GAH HEATING PRODUCTS Ltd 01394 421160 Fig 3 2e Control Unit Dimensions Four fixing holes in rear of box 28 GD D m controllable electric boilers Diagram electrastrea 3 3 1 Wiring Juawabueny wesbeig eg g Bly SNOILOANNOOD TIV SYNSN3 aay Ajqissod pue Guyeaysano 1819H 8109 11 Mie X ui jjnsaiJ JIM Suomo9uuo 9S00 J9Jnjoejnueu aH XT NMO S LI 3AVH ISAN LN3IN3T3 HOV Ayuewem ajepijeAui queueja Aue 0 ULI H IIM 9zis aged 1293102 Duisf XTA8v9 d31V3H 3409 41 7 INVLUOdII i 1 1 1 paljddns jou i invisisa LVLSONY3HL NOOY E X 3409 6 X31 DLEBLE INVISIS3H 1V3H X 3909 6 S3S3HOISIE cee se Sv 7009589 009959 INVISIS3U 1V3H 10 e2Ipu uooN 2WUWG 0 X 3409 7 700959 hiis SNO ACH Xi DLEBLE ue y UM 108095 22 Fav Acvc9 ginjejadulg bis ng Ing ainjeJadug J9AQ 10 91 PU eoiueuoaui pue 21 29 9 pue uomeredas ajod 1se9 1e uos Dunejos ajog ajqnoq dWnd 19151
31. anged and sized to comply with Building Regulations G3 CYLINDER DRAIN COCK Domestic Hot Water Domestic Cold Water Mains Supply Tundish Boiler Flow Boiler Return v PARTS SUPPLIED V MOTORISED VALVE v TEMPERATURE SENSOR AND OVER TEMPERATURE CUT OUT BOX v TRI CORE HEATER HEATING RETURN 22mm V MI COUPLER x 22 x 4 COLD INTO CYLINDER V MI COUPLER x 22 x 22mm 22mm 22mm 22mm 22mm 22 x 3A M I Coupler supplied Fit 22mm Lever Valve supplied Fit 22mm Lever Valve supplied 22mm x 4 BSP M I Coupler supplied Discharge to be arranged and sized to comply with Building Regulations G3 22 x 3A M I Coupler supplied 22 x 3A M I Coupler supplied Fig 4 7a Typical Electrastream Single Coil Cylinder Connections 44 electrastream controllable electric boilers 4 7 2 Connections to Electrastream Plus v UNVENTED CYLINDER DOMESTIC y COLD WATER 22mm Z TPR VALVE V MI COUPLER x 22 x DOMESTIC FROM MAINS HOT WATER 22mm 22mm ACCUMULATOR v 22mm LEVER VALVE v MOTORISED VALVE TUNDISH USD v MI COUPLER x22x A v CYLINDER Ge TEMPERATURE SENSOR E AND OVER TEMPERATURE CUT OUT BOX LA TT V TRI CORE US 0 du7 re HEATER eC am SUE CYLINDER BERE FONS al DRAIN COCK RETURN D T SI V 22mm LEVER VALVE COLD INTO CYLINDER V MI COUPLER
32. are exposed ISOLATE THE TRI CORE HEATER BEFORE REMOVING ITS COVER 2 1 3 Over Temperature Cut Out Thermostat In the Electrastream temperature sensor box on the cylinder is the over temperature cut out thermostat This prevents the water within the cylinder from overheating The over temperature cut out thermostat is a manual reset type this means it has a small button that pops up when the thermostat has been tripped by overheating To reset the system after overheating switch heating and hot water OFF allow time for the water to cool or run off some hot water then remove the cap and press the button electrastream controllable electric boilers IMPORTANT When a programmable room thermostat is used it should only be set to call for heat when Economy Tariff is available Note Refer to 2 2 for the Electrastream Control Unit display and settings Note Testing the RCD will not cause loss of the Flectrastream Control Unit settings If the over temperature cut out trips more than once switch off the Electrastream isolating switch and contact your installer 2 1 4 Heating Motorised Valve When the room thermostat is calling for heat and the Electrastream control unit is set for heat ON the heating motorised valve will open allowing water to the radiators Display icon Valve N Z indicates the valve is open 2 1 5 Pump The heating circulating pump is controlled by the Electrastream Control Unit in res
33. ater TPRV and heating PRV discharge see fig 4 4a C HIGHEST POINT OF SYSTEM 0000 gt STATIC HEAD p lt M EXPANSION VESSEL Fig 4 4d Static Head Note Normally expansion requirement is 4 of the system water content including the unvented cylinder coil 4 4 5 Heating PRV Discharge Pipe The outlet from the heating PRV must be piped using 15mm copper pipe to the tundish then to a visible position outside the dwelling The pipe must have a continuous fall and ideally be terminated over a drain The heating PRV may be plumbed to the hot water system TPRV discharge prior to the Tundish see fig 4 4a The PRV discharge must comply with Building Regulations G3 refer to pages 40 42 4 4 6 Heating System Expansion Vessel red IMPORTANT Scalding water and steam can be emitted from the discharge pipe Position the discharge so there is no hazard to property or people especially children Maximum charge pressure 1 5 Bar Maximum working temperature 90 C Pre charge pressure 1 Bar Maximum working pressure 3 Bar Capacity 8 litres for maximum system expansion of 7 litres An expansion vessel and mounting kit is supplied this is suitable for systems with a Static head of up to 5 metres If the static head is greater than 5 metres the charge pressure of the expansion vessel will need to be increased Increase the pressure using a standard car tyre pump
34. ble thermal trips in the Electrastream Control Unit see 2 2 4 2 2 4 Element Resettable Thermal Trips Each of the three elements of the tri core heater is protected by a 16amp Resettable Thermal Trip these have their reset buttons located on the front of the Electrastream Control Unit In the event of electrical overload on an element the relevant thermal trip will trip out when this occurs the button will pop out Also the control screen will display under Heat 1 Heat 2 and or Heat 3 see fig 2 2a To reset the thermal trip 1 Turn OFF the Electrastream mains isolating switch see 2 1 1 2 Look at the three buttons button s that are protruding have tripped out 3 Press the button in if the button stays in when the power is turned on then trip has been reset However if the button pops out again a possible fault exists contact the installer The Electrastream will still operate with one or two elements working but this is not satisfactory and the installer must be contacted to rectify the fault as soon as possible 2 2 5 Economy Tariffs Regional electricity suppliers have their own Off Peak tariffs that will provide an economical supply of power for the Electrastream system It is vital that the time settings of the Electrastream control unit are set to make the most use of the available Off Peak tariffs 2 2 6 Normal Tariffs Normal tariffs are at all times that are not designated for Off Peak
35. ctric The hot water for the taps outlets and radiators is heated by the tri core heater in the cylinder The system will have the following controls Fig 2 1b Isolating Switch R MANUAL RESET BUTTON Fig 2 1 Thermal Cut Out Thermostat 14 COLD WATER OUTLETS COLD SUPPLY HOT WATER OUTLETS THERMOSTATIC MIXING VALVE ROOM THERMOSTAT UNVENTED CYLINDER e PUMP MOTORISED VALVE e ELECTRASIREAM CONSUMER UNIT TEMPERATURE SENSOR amp ngcu TE RC THERMAL CUT OUT TRI CORE HEATER ISOLATING SWITCH Fig 2 1a Schematic of Typical Controls 2 11 Isolating Switch The system will have a double pole isolating switch with neon and mechanical indicators This could be a pull cord or wall mounted type When the switch is ON neon on the system is operational When the switch is OFF neon off no hot water or heating will be available It is advised to turn the switch off when hot water and heating are not required i e holidays etc 2 1 2 Electrastream Tri core Heater WARNING Unlike immersion heaters the Electrastream tri core heater does not have an internal thermostat therefore the cover should not need to be removed When the cover is removed live electrical terminals
36. e 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 comply with the Water Supply Water Fittings Regulations the tundish should incorporate a suitable air gap 40 however its use and installation must be approved by the local building control Refer to G3 Regulation and valve supplier manufacturers instructions for installation and servicing 4 5 3 Expansion Discharge Pipe To Gully The discharge pipe from the Tundish must be installed to comply with Part G3 of the Building Regulations latest edition The following text and diagram 1 are reproduced from G3 Building Regulations 2000 as amended Draft 3 54 Any discharge should be visible at the tundish In addition where discharges from safely 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 55 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 3 56 The discharge pipe D2 should be made of a metal or
37. e 3 5 Bar Membrane Butyl for wholesome water Maximum Working Temperature 90 C Maximum pressure 7 0 Bar Heating Pressure Relief Valve PRV 6 Bar Minimum pressure 0 8 Bar Factory set pressure 2 Bar electrastream controllable electric boilers IMPORTANT Plastic pipe and fittings should not be used within 1m of the cylinder IMPORTANT Using incorrect cable size will invalidate warranty 24 3 1 5 Pipework All pipes should be sized to suit application Suitable types Copper Pipe Plastic Pipe Soldered copper fittings Compression type fittings Push fit fittings EN1057 Kite marked BS 7291 Kite marked WRAS approved EN 1254 1 BS864 Part 2 WRAS approved EN 1254 2 WRAS approved BS7291 pt1 pt2 WRAS approved must be specified as suitable for sealed systems 3 1 6 Electrics The Electrastream system must not be installed in any enclosed space where the air temperature could exceed the maximum electrical design ambient of 30 C Adequate ventilation should be provided for airing cupboards and enclosed compartments Humidity may also present a problem within airing cupboards ELECTRASTREAM Supply 230V 10 Single Phase Fuse 40 amp RCD 63 amp Supply Cable Size 6242Y 10mm Twin amp Earth HEAT RESISTANT To latest version of BS6004 Indirect Cylinder Single and Twin Coil Tri core Heater Type Titanium Element EN60335 2 73 96 co
38. e and any applicable licence that may be required by the local inspectorate for installation of an unvented hot water storage System In some areas the Local Authority may require notification by means of a building notice or by the submission of full plans for the proposed installation of an unvented hot water storage system 4 1 2 Water Regulations The Water Bye laws and Current Building Regulations paying particular attention to G3 and Part L 1 amp 2 and HSE requirements should be considered when installing an Electrastream System Note The Electrastream MCB may require a ventilation space between it and other MCBs within the consumer unit IMPORTANT No electrical components switches or junction boxes should be positioned near or under the Tundish 4 2 1 Electrical Regulations All wiring should be carried out to and comply with the current IEE Wiring Regulations All electrical work must comply with any relevant regulations that apply at the time of the installation All cables should be to the latest BS6004 specification All flexes should be to the latest BS6500 specification All cables and flexes must be of correct size as stated on the wiring diagrams IMPORTANT Using incorrect cable size will invalidate warranty Loose connections will result in overheating arcing and possibly fire ENSURE ALL CONNECTIONS ARE TIGHT 4 2 2 Electrical Work All electrical installation and maintenance of the Electrast
39. eal for small dwellings 4 4 2 Pressure Gauge The pressure gauge is provided to indicate the heating system pressure When the system is full with cold water and all radiators are full on and bled vented the gauge will show the cold fill pressure Set the red pointer to the cold fill pressure If the system pressure indicated by the black pointer falls below the cold fill pressure it means that the system requires topping up 4 4 3 Pump Electrastream is supplied with a standard 3 speed central heating circulating pump and isolating valves This should be fitted in the flow from the indirect cylinder before the bypass valve Normally the pump will be set at speed 2 Il The pump is wired so that it is ON when the heating control system is set for heating ON and the room thermostat is set higher than the ambient temperature see wiring diagrams figs 3 3a and 3 3b 4 4 4 Heating PRV The pressure relief valve PRV is provided to vent excess pressure from the system The valve will open when the pressure exceeds 3 Bar 10 The valve can be manually opened by turning the red knob clockwise to close the valve continue turning clockwise until it clicks 37 electrastream controllable electric boilers Note IMPORTANT Under no circumstances should the system be operated without the heating PRV fitted and working correctly One Tundish is supplied with the Electrastream this should be fitted to the hot w
40. economy tariff options are available before installing the Electrastream 4 2 5 Electric Cables All cables must be correctly sized to the requirements stated in the wiring diagrams failure to do so will invalidate warranty see figs 3 3a and 3 3b All cables must be to the latest version of BS6004 Heat resistant cables MUST be used where specified GAH recommend all cables have a minimum temperature rating of 80 C Cables should be routed to ensure they do not come into contact with hot surfaces or pipes on the Electrastream system The use of pipe insulation is recommended where contact between pipes and cables is possible When extending existing cables flying leads use suitable rated cables and ensure they are correctly jointed sleeved and covered 4 2 6 Tri core Heater The H1 H2 and H3 connections on the Electrastream control unit can be connected to any of the three heater elements however each element MUST be wired independently with a separate 3 core 2 5mm heat resistant cable All three earth cables must be connected to the dedicated earth terminal within the tri Core heater s cover Twin coil cylinders have two immersion heater tappings The Electrastream tri core heater must always be fitted to the upper tapping The cylinder is supplied with the lower immersion heater tapping blanked off No immersion heater should be fitted electrastream controllable electric boilers Hot Water System
41. en Always isolate before connection adjustment servicing and working with the Electrastream system repair When the Tri Core Heater cover is removed high power live SEALS AND INSULATION electrical terminals are exposed Insulation and sealing materials are used in the construction ISOLATE THE TRI CORE HEATER BEFORE REMOVING ITS of the Electrastream cylinders Units are sealed and when COVER used in the manner for which they are intended the insulating Earth protection Earth Continuity Conductors must be fitted and sealing materials do not present any known hazard and must comply with IEE Wiring Regulations However always observe the following recommendations 1 Avoid inhalation of fibres or dust wear face mask 2 Avoid eye contamination by fibres or dust wear eye protection GAH HEATING PRODUCTS LIMITED will not accept 3 As far as possible avoid any skin contact with Fibreglass responsibility for any damage or personal injury caused Insulation Glass Rope Mineral Wool Insulation Pads and by not giving due consideration to the above safety Ceramic Fibre recommendations In pursuance of a policy of constant development GAH HEATING PRODUCTS LIMITED reserve the right to change Electrastream parts or design without notice therefore certain details included in this manual may not be correct at the time of printing Any GAH Heating Products Ltd modification and improvements detailed in this manual does not c
42. ented Indirect Cylinder Electrastream Coil Tri core Heater Solar Control Primary Coil for alternative Incoming Water Main Thermostatic Mixing Valve Fig 1 1b Electrastream Twin Coil typical solar arrangement J ELECTRASTREAM PLUS F Unvented Electrastream Indirect Control Cylinder Unit Incoming Water Main AccumulatorS C Ti core Thermostatic Cold water storage Heater Mixing Valve Fig 1 1c Electrastream Plus J M The Electrastream Plus system is supplied with a cold water storage accumulator The accumulator has an internally controlled butyl diaphragm incoming cold water is stored within this diaphragm at mains pressure The air space between the diaphragm and the accumulator case is pressurised this balances the supply and maintains pressure to the unvented hot water cylinder and cold outlets When hot and cold water outlets are turned on the stored water from the accumulator supplements water from the incoming main this results in consistent pressure and flow to all taps showers and baths even when outlets are used simultaneously Pressure will be sustained for as long as the accumulator is holding sufficient volume of water ELECTRASTREAM PLUS PRE PIPED Operationally the same as the Electrastream Plus but supplied pre piped and assembled onto a mounting frame the cold stora
43. eplace valve 12 Close the Stop Cock 13 Open the hot and cold taps attach a hose to the cylinder drain cocks and empty the system 14 Remove tri core heater remove limescale and examine the element and seal Refit if in good condition In hard water areas it is probably better to replace the tri core heater if heavily scaled Fit tri core heater and seal 15 Clean and check the in line strainer in the combination valve replace if required 16 Check strainers and operation of mixing valve see 4 3 10 17 Close all drain cocks and refill system IMPORTANT 18 Checkthat no water is passing through the Combination Valve or the Pressure Relief The final fill of the heating system Valves this will be evident at the Tundish should include the correct dose of a 19 Switch on the Electrastream isolator set timer for midnight then set Control Unit and suitable scale corrosion inhibitor room thermostat for heat 20 Wait for the system to self check and heat up 21 Check temperature of hot tap water adjust as required max 60 C 22 Check for leaks and bleed system again when the system is up to temperature Nofe 23 Check operation of room thermostat and timer Testing the RCD will not affect the operation 3 Check operation o 90 ermostat and timer of the Electrastream Control Unit 24 Check the RCD operation 25 Enter details of service into the Benchmark Logbook 50 electrastream controllable electr
44. es 22mm Thermostatic Mixing Valve Blends cold water with hot water from cylinder for taps DHW 8 Expansion Vessel amp Kit White C w Filling Loop Pressure Gauge TPRV amp Bracket and Strap Combination Valve Includes PRV Pressure Reducing Valve Cylinder Thermostat Box C w manual override stat Coupler 22mm x BSP Brass 1 Cylinder Cold In 1 Cylinder Hot Out 1 Cylinder Heating Flow 1 Cylinder Heating Return 22mm Full Bore Lever Valve 1 Cold Supply to Taps 1 Hot Supply to Taps Motorised Valve 2 Port Heating System 8l Expansion Vessel amp Kit Accumulator Red C w Filling Loop Pressure Gauge TPRV amp Bracket and Strap Cold Water Storage Model 200 or 300 22mm Full Bore Lever Valve Accumulator Shut Off Valve 11 electrastream controllable electric boilers The Electrastream System Note All installations must comply with relevant regulations refer to section 4 1 Note The alternative heat source must be configured correctly to be used with the GAH Electrastream system Note The final fill of the heating system should include the correct percentage of suitable scale corrosion inhibitor 12 1 4 1 Hot amp Cold Water Supply Refer to fig 1 2a for Electrastream Refer to fig 1 2b for Electrastream Twin Coil The incoming mains water supply is connected to the combination v
45. expansion valve The heating system should not be run with all the radiators turned off unless there is a bypass valve in the system see figs 1 2a and 1 2b Check for air in the heating system Check that the cylinder temperature sensor has not been dislodged from the phial in the cylinder O With the heating elements and heating pump turned OFF check for error messages on the Electrastream Control Unit Hot water discoloured OO WARNING O With the heating elements and heating pump turned OFF check the target Scalding water and steam can be temperature of the Electrastream Control Unit see step 8 fig 2 20 blown out of the tundish and discharge pipe O With the heating elements and heating pump turned OFF check for error messages on the Electrastream Control Unit WARNING Please ensure that no water has come into contact with any electrical device before the electrical supply is turned back on 53 4 elect Notes rastream controllable electric boilers 54 electrastream controllable electric boilers heating products GAH Heating Products Ltd Building 846 Bentwaters Parks Rendlesham Woodbridge Suffolk IP12 2TW www gah co uk Tel 01394 421160 Fax 01394 421170 email mail gah co uk
46. ge accumulator is supplied separately electrastream INTRODUCTION controllable electric boilers 1 1 4 Electrastream System Features ELECTRASTREAM AND ELECTRASTREAM TWIN COIL 1 Only water and electric services required j 2 No gas or oil no Boiler ote 5 3 Central heating with conventional water filled radiators to page 9 4 Heat on demand 24 hours a day 5 Can be timed for economy tariff m 6 Far more flexible heating control than storage radiators ote Further options are avallable consult GAH 7 Hot water to taps and shower from unvented cylinder m Heating Products Ltd 8 Hot water to outlets temperature controlled by thermostatic mixing valve 9 Mains pressure to hot and cold outlets 10 All plumbing water storage and controls are within the dwelling no header tank 11 Low maintenance cost no CORGI Landlord Certificate required 12 9kW titanium tri core heater combined x 3kW 13 Tri core heater will still work should one or two of its three elements fail 14 Stainless Steel Unvented Cylinder with 25 years guarantee ELECTRASTREAM TWIN COIL 1 Cylinder with primary coil for alternative energy source typically solar and ground source ELECTRASTREAM PLUS ONLY 1 Balanced hot and cold supply to taps 2 All taps and showers at maximum system pressure 3 Pressure maintained for both hot and cold taps even when other taps are open subject to volume used
47. hh mm i mm T 7 Stop 3 hh mm dE 8 Target 65 C Hrs Run 0000 1 Display only Indicates the total hours that each tri core heater element has been in operation For service 0000 0 0000 0 engineers information only Notes All times are given in 24 hour clock Maximum cylinder temperature setting Target C is 70 C For error displays see 2 2 3 Fig 2 2b Electrastream Control Unit Display Settings 17 electrastream controllable electric boilers CTS Ltd 01394 421160 S Fig 2 2c Resettable Thermal Trips IMPORTANT Operating the Electrastream during normal tariffs will increase running costs 18 2 2 3 Error Displays When any of the following errors are displayed call service engineer ERROR 1 When Error 1 is displayed it indicates a faulty or disconnected temperature sensor Heating is disabled ERROR 2 When Error 2 is displayed it indicates 1 The auxiliary 5 amp fuse has blown or 2 The pump motorised valve or room thermostat is faulty or Heating is disabled ERROR 3 When Error 3 is displayed it indicates that all heater elements failed heater test Heating is disabled ERROR 5 One or more of the controller set up down or boost buttons is stuck or held down HEAT 1 When is displayed under Heat 1 Heat 2 or Heat 3 it indicates a tri core element has failed Check the resetta
48. his should switch the supply Off Reset RCD to On after test fthe RCD appears not to be working correctly contact your installer or a qualified electrician 2 1 9 Alternative Heat Source Controls For twin coil systems the alternative heat source will have its own controls refer to manufacturers instructions The alternative heat source would normally be a cost effective method of heating the cylinder and should be used and controlled for optimum performance thus reducing heating costs 15 electrastream controllable electric boilers Electrastream Control Unit 2 2 1 Control Unit Display Normal Screen For display settings see 2 2 2 For error displays see 2 2 3 Displays actual water temperature in cylinder SV RESETTABLE THERMAL TRIPS x amp NA S NV NY a CES SP 24 c A A Auto On Oft Day hh mm y Vv N AutolOff HEATING MODE 9 X DS Gn Sy HOME SET UP DOWN BOOST electrastream controllable electric boilers ELECTRASTREAM CONTROL ROOM THERMOSTAT GAH HEATING PRODUCTS Ltd 01394 421160 P Tis unit S Toggled by Boost displayed Heating On until next set OFF time SN R Toggled by A v m a Auto Timed Set by 8 Target c 24 C Boost A AutolOn Off Off Hot Water permanently OFF Displays current Day Day hh mm v v AutolOff Toggled yl On Hot Water permanently ON and Time
49. ic boilers 6 1 2 Replacing Tri Core Heater When replacing the Tri Core heater the relays on the Electrastream Control Unit must be checked for operation 1 Heat cylinder 2 Observe the Control Unit and wait for the actual temperature C to reach the set target C 65 3 When set target C is reached Heat 1 Heat 2 and Heat 3 will indicate all elements are off not displayed 4 Ifa continued rise is observed when Heat 1 Heat 2 and Heat show that all elements are OFF it indicates that the relay on the Control Unit needs replacing Consult GAH HEATING PRODUCTS 51 electrastream controllable electric boilers Fault Finding also see www gah co uk For Error Displays on control unit refer to 2 2 3 page 18 Indicates that the check may possibly be carried out by the system user O Indicates that the check should be carried out by the installer or competent person IF IN DOUBT CONTACT YOUR INSTALLER Check the mains water supply has not been interrupted heck the stop cock and all valves on the mains water supply are correctly installed Checkthe stop cock and any valves on the mains supply are fully open No COLD Water Supply e c Check the stop cock and any valves on the mains supply are fully open O Check the combination valve in line strainer is not blocked clean or replace as required O Check strainers and any other fittings are not blocked clean or replace
50. ices home offices and granny annexes 1 1 2 Electrastream Options Available Consult GAH Heating Products Ltd 1 1 3 Basic Principles ELECTRASTREAM Water in the unvented cylinder is heated by the high powered titanium electric tri core heater Hot water is drawn from the cylinder and mixed with cold water by a thermostatic mixing valve this ensures safer lower temperatures at the hot water outlets The hot water within the unvented indirect cylinder also heats the water for the heating system via the indirect coil within the cylinder The circulating pump for the heating system is controlled by a thermostat and programmable timer with override so that heat is available on demand providing there is a supply of hot water ELECTRASTREAM PRE PIPED Operationally the same as the Electrastream but supplied pre piped and assembled onto a mounting frame Electrastream Control Unit Unvented Indirect Cylinder Incoming Water Main Thermostatic Mixing Valve Tri core Heater Fig 1 1a Electrastream electrastream controllable electric boilers ELECTRASTREAM TWIN COIL Operationally the same as the Electrastream but supplied with a twin coil cylinder which enables the Electrastream to be used in conjunction with alternative energy systems e g Solar x Electrastream Control Solar Collectors Unit E Unv
51. isolator On Electrastream Control Unit see 2 2 8 2 Set date and time 8 3 Settimes to suit economy tariff 8 4 Set target temperature to 65 C step 8 on 2 2b 8 5 If heating hot water is not On press Boost and set room thermostat for heat 8 6 Wait for the cylinder and heating to heat up 8 7 Check for leaks and bleed the system again when it is up to temperature 8 8 Check pressure gauge black arrow this will show the heating system working pressure This should be less than 2 8 Bar 8 9 Check operation of Electrasteam Control Unit HEAT1 A indicates Element 1 is ON HEAT2 indicates Element 2 is ON Cylinder is heating up HEAT3 A indicates Element 3 is ON 4 VALVE Indicates Heating Valve is OPEN PUMP Indicates Heating Pump is ON _ Heating is On THERM W Indicates Room Stat is calling for heat When timer is set for heat and the room thermostat is set above ambient the motorised valve should be open and the pump should be running When the room thermostat is reset below ambient the pump should stop and the valve should close When the timer is not set for heat the pump should not run and the valve should be closed regardless of room thermostat setting 8 10 Fill in details in the Benchmark Logbook electrastream controllable electric boilers CAUTION The main supply must be turned OFF and water drained from the Accumulator before lowering the charge pressure failure to do so could
52. itted to unvented cylinders consult the label on the face of the unit for the correct location A non return valve must be fitted to prevent back flow and a bronze pump will be required in conjunction with a pipe thermostat and timer to circulate the hot water not supplied Note An extra expansion vessel may be required where the additional volume of the secondary return exceeds the capacily of the expansion vessel supplied electrastream controllable electric boilers FER Heating System V HEATING SYSTEM EXPANSION VESSEL v FILLING LOOP BATH SHOWER XI Normally Disconnected ROOM TOWEL rey RADIATOR v HEATING PRV PUMP J KITCHEN KICK 15mm aada Al v SUPPLIED J TPRV mem J HOT WATER Pav MOTORISED VALVE Bypass A N RETURN 22mm SINGLE COIL CYLINDER SHOWN TWIN COIL CONNECT TO TOP COIL Fig 4 4a Schematic of Typical Heating System Fig 4 4c Pump Speed 4 4 1 Notes on Heating System 1 The total output from the Electrastream for hot water and heating is 9 kW 240V 30 000 Btu The radiators should be sized to suit 2 The schematic system shows a kick space fan assisted heater these are efficient space saving units id
53. llowed for a straight length of 28mm copper discharge pipe D2 from a G temperature relief valve is 18m Subtract the resistance for 4 No 28mm elbows at 1 0m each 4m Therefore the maximum permitted length equates to 14m As the actual length is a 28mm D2 copper pipe will be satisfactory 3 58 Where 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 59 The discharge pipe should not be connected to a soil discharge stack unless it can be demonstrated that the soil discharge stack is capable of safely withstanding temperatures of the water discharged in which case it should a 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 safely device they should be either polybutalene PB to Class S of BS 7291 2 2006 or cross linked polyethylene PE X to Class S of BS 7291 3 2006 and be continuously marked with a warning that no sanitary appliances should be connected to the pipe 4 5 4 GAH Expansion Discharge TPR VALVE DISCHARGE PIPE D1 TO TUNDISH 15mm Supplied and fitted by GAH TUNDISH
54. nation Valve has an integral pressure reducing valve fixed at 3 5 Bar therefore the hot water System Pressure will be 3 5 Bar maximum If the Mains Pressure is less than 3 5 Bar then the hot water System Pressure will be at maximum Mains Pressure The Combination Valve has a Pressure Relief Valve PRV set at 6 Bar The unvented cylinder has a Temperature and Pressure Relief Valve TPRV set at 7 Bar The heating system has a TPRV set at 3 Bar ELECTRASTREAM PLUS ONLY f 8 The Accumulator Pressure is factory set at 2 Bar The recommended Accumulator Pressure is 1 5 Bar below the mains pressure with an absolute minimum of 0 8 Bar see 5 1 Stage 9 Consult GAH HEATING PRODUCTS for further information 43 electrastream controllable electric boilers Electrastream Connections 4 7 1 Connections to Electrastream BEL125 and BEL150 Single Coil Cylinders TPRV connection not to be used for any other purpose DOMESTIC V TPR VALVE HOT WATER 22mm 22mm LEVER VALVE V TUNDISH No valves between cylinder and combination valve V MI COUPLER x 22 x 4 V COMBINATION UNVENTED CYLINDER DOMESTIC COLD WATER 22mm 22mm LEVER VALVE FROM MAINS 22mm v DHW 8l EXPANSION VESSEL KIT No valves between combination valve and vessel HEATING FLOW 22mm i t NM V MI COUPLER x 22 x 4 Discharge to be arr
55. ns are tight and no joints have been left unsoldered heck ALL drain cocks are closed If fitted check that the Scale Protection Device or Water Softener has been fitted according to manufacturers instructions CD C C CD STAGE 3 FILLING DHW SYSTEM 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 STAGE 4 DRAIN DHW SYSTEM Open all shut off valves Open the incoming water isolating valve mains stopcock to the Electrastream and allow the unit to fill Open all domestic taps in turn to purge air Check system for leaks including around the Tri Core Heater Check no water is discharging from any TPRV or PRV Test the operation of the TPRV and PRV by turning the manual test cap and ensure the water flows freely and safely to waste Test the operation of the Combination Valve PRV by turning the manual test cap and ensure the water flows freely and safely to waste Set hot water Mixing Valve to max 4 1 4 2 Turn off incoming water isolating valve mains stop cock Using hose and suitable containers drain all water from the cylinder and pipework using drain cocks The cylinder will not fully drain without the use of a hose see page 36 47 electrastream controllable electric boilers IMPORTANT The final fill of the heating system should include the correct dose of a suitable scale corrosion inhibitor ARISTON Benchmark The code of practice for the Installation commis
56. ntrol The Electrastream system is controlled by a purpose designed Electrastream Control Unit this controls the hot water and heating ON OFF times together with the heating pump and valve The control also has a dedicated programme that ensures efficient use of electricity by selecting how many of the three immersion heater elements are required to meet the current demand for heating or hot water 1 4 4 Heating System The heating system is for water filled radiators on a standard sealed system The water for the heating is heated by being pumped through the indirect coil of the cylinder A room thermostat and the Electrastream Control Unit s programmable timers control the circulating pump and motorised valve 1 4 5 Electric System The unvented cylinder is heated by a 240V 9kW combined 3 x 3kW titanium tri core heater This is controlled by the cylinder temperature sensor and the Electrastream Control Unit Electrastream is designed to make full use of economy tariff electricity supplies and the wiring must be arranged to make full use of this electrastream controllable electric boilers GAH offer a range of quality Water Softeners for information contact GAH HEATING PRODUCTS LTD Note When a water softener is fitted the take offs for heating system fill drinking water and outside tap when applicable must be positioned before the water softener 1 4 6 Output The tri core heater provides 9kW
57. off and prior to any other take offs The valve is wired as shown in figs 3 3a and 3 3b The valve is normally closed to prevent gravity feed from the cylinder to the heating system when the pump starts the valve opens 4 4 9 Bypass not supplied An automatic bypass valve should be fitted between the flow and return of the heating system normally after the pump but before any radiator take offs The valve must be set to suit the pressure of the system refer to manufacturers instructions IMPORTANT When a programmable room thermostat is used it should only be 4 4 10 Room Thermostat not supplied set to call for heat when Economy A standard room thermostat with no built in timers or functions is recommended e g Tariff is available Honeywell T6360B or equivalent 39 electrastream controllable electric boilers Expansion Discharge AIR BREAK 4 5 1 Tundish supplied Normally the Electrastream cylinder is supplied with a TPR valve and PR valve part of the combination valve fitted and plumbed to the Tundish Fig 4 5b shows typical GAH expansion discharge arrangement for unvented cylinders The Tundish must be vertical and fitted within 500mm of the temperature and pressure relief valve and must be located with the cylinder The tundish must also be in a position visible to the occupants and positioned away from any electrical devices The discharge pipe from the tundish should terminate in a
58. ommit GAH to update T any system previously supplied Building 046 Bentwaters Parks Manual Part No MAN1019 Rendlesh Manual ES02 endiesnam ET ete tte 12 Woodbridge Suffolk IP12 2TW Patent application 01514800 2 Tel 01394 421160 2010 GAH HEATING PRODUCTS LTD Electrastream is a Trademark of GAH HEATING PRODUCTS LTD Fax 01394 421170 email mail gah co uk HTS REF GAH ELECTRASTREAM 10 02 10 WWW Q ah co uk Manual by Harber Technical Services Tel Fax 01263 515444 E mail info harbertech co uk www harbertech co uk electrastream CONTENTS CONTENTS Important Information 4 gt Section 1 Introduction 1 1 Introduction 5 1 2 System Layout 8 1 3 Parts Supplied 11 1 4 The Electrastream System 12 1 5 Tri Core Heater Operation 13 2 OPERATOR CONTROLS gt Section 2 Operator Controls 2 1 System Control 14 2 2 Electrastream Control Unit 16 2 3 Shut Off Valves ae eee 20 3 TECHNICAL INFORMATION gt 2 4 Temperature amp Pressure Relief Discharge 22 2 5 Thermostatic Mixing Valve 22 2 6 Servicing
59. ot affected by could be a potential problem see 1 4 7 the height of the cold water storage Note that space is required to the top of the vessel to access the pressure valve Provision must be made to enable the accumulator to be drained when required IMPORTANT The accumulator is supplied at 2 Bar pressure It is recommended to set the pressure at 1 5 Bar below the mains pressure with a minimum of 0 8 Bar see 5 1 2 4 3 6 Scale Protection IMPORTANT All installations should have a scale protection device fitted and in areas known to have hard water a water softening device is strongly recommended The cylinder is not guaranteed against damage caused by scale Higher water temperatures of 65 C and above can cause excessive scale GAH recommend and promote the use of scale prevention devices and water softeners in GAH offer a range of quality Water areas that are known to have hard water Installed correctly they prolong the life of Softeners for information contact equipment and help prevent limescale formation in the pipework Water Softeners GAH HEATING PRODUCTS LTD ee of soft water as well as preventing scale build up taps shower heads Water softeners and any mains fed system must be of adequate capacity and should be installed with suitably sized hoses to prevent any possibility of flow reduction The location and position of the Scale Protection Device or Water Softener should be as the manufacturer
60. ponse to the room thermostat The pump has 3 speeds it is normally set to speed 2 Il Consult the Electrastream installer before changing this setting see 4 4 3 Display icon Pump N indicates the pump is ON 2 1 6 Room Thermostat The room thermostat controls the heat within the property When the room thermostat is calling for heat and the Electrastream control unit is set for heat ON the heating circulating pump will run pumping water through the radiators Display icon Therm N indicates the room thermostat is calling for heat 2 1 7 Tri core Heater Elements The three elements heat the water in the cylinder when the Electrastream control unit is programmed for a heat cycle The elements are switched On and Off by the Electrastream control unit in response to the temperature within the cylinder as detected by the temperature sensor The elements have a staggered On sequence to prevent sudden loads see 1 5 Display icons Heat 1 N Heat 2 and Heat 3 N indicate that the elements are heating If either of the Heat icons are displaying an exclamation mark this indicates a fault with an element see 2 2 3 2 1 8 Residual Current Device RCD The Electrastream system will be protected by a Residual Current Device this will automatically switch Off the electric supply if an earth fault develops The RCD must be tested at least every three months this is done by pressing the RCD Test or T button t
61. ream must be carried out by a competent qualified installer All electrical work must be installed to the requirements of this User and Installation Manual 4 2 3 Electrical Supply he main incoming electrical supply to the property should be of adequate voltage urrent and temperature rating for the requirements of the Electrastream as well as all ther electrical requirements within the property T 0 The electrical supply to which the Electrastream is connected must be protected by a 63 amp RCD The Electrastream must have a dedicated 40 amp MCB T he Electrastream must be wired through a 40A class A double pole isolating switch with at least 3mm pole separation this switch should also have both electric and mechanical indicators The switch should be located near to the Electrastream control unit 31 electrastream Note controllable electric boilers One supplier of Economy 18 is E On Energy tel 0845 0520000 TRI CORE HEATER M BLANKED Fig 4 2a Twin Coil Cylinder 32 4 2 4 Off Peak Electrical Supply To achieve the most efficient performance from the Electrastream it is strongly recommended to use an Economy 18 Off Peak electrical supply Other Off Peak options such as Economy 7 or Economy 10 tariffs are also available from most UK electrical suppliers Consult the local electricity suppliers to determine what
62. rr EN 603351 94A11 A15 A1 Tri core Heater Size 3qty x 3kW nom 240V Tri core Heater Length 400mm nominal Fuse Rating 3gty 16 amp Cable Size Control Unit to Elements 3gty 3183TQ 2 5mm 3 core round flex HEAT RESISTANT To latest version of BS6500 Heating Controls Fuse Rating Pump Room Stat and 5 amp Motorised Valve Cable Size 3183TQ 1 5mm 3 core round flex HEAT RESISTANT To latest version of BS6500 Control Unit to Over Temperature cut out n Electrastream Control Unit Cable Size 3183TQ 0 75mm 2 core round flex HEAT RESISTANT To latest version of BS6500 electrastream controllable electric boilers Dimensions 3 2 1 Cylinder Dimensions Single Coil COMPRESSION FITTINGS ARE SUPPLIED TO ADAPT THE Note CYLINDER TAPPINGS TO THE PIPE SIZES SHOWN Allow sufficient access for cylinder servicing and replacement Recommended at least 100mm clearance all round and above CLEAR UTEM FOR TPRV REMOVAI CLEAR AREA REQUIRED 250 x 100 FOR TRI CORE HEATER REMOVAL M cs o Y o o 225 225 NP HOT WATER TO TAPS 22mm COLD MAINS SUPPLY N 22mm ELECTRASTREAM COLD TO TAPS 22mm a x ELECTRASTREAM PLUS S TO ACCUMULATOR 22mm vd TUNDISH by ane FLOW 22mm lt EXPANSION DISCHARGE CYLINDER EARTH POINT a
63. s auto press n It will require switching to Auto again when required To turn hot water and heating ON during OFF periods auto press then m Both will require switching to Auto again when required 19 electrastream controllable electric boilers Shut Off Valves The Electrastream installation will have a number of shut off valves the location of these will be dependent on the installation fig 2 3a shows typical layout HOT WATER SHUT OFF VALVE THERMOSTATIC COLD WATER SHUT OFF VALVE SHOWER f gt lt COLD SUPPLY TOTAPSZ nnn EE 1 STOP COCK i 1 ea A xo PI Di OPTION HOT SUPPLY TO TAPS THERMOSTATIC MIXING VALVE JUUL PRV 6 Bar Fe INCOMING MAINS WATER SUPPLY WATER SHUT OFF VALVE BYPASS 45 Fig 2 3a Typical Shut Off Valve Locations single coil shown IMPORTANT Before closing ANY valve switch OFF the Electrastream Isolating Switch 20 electrastream controllable electric boilers THERMOSTATIC HOT WATER SHUT OFF VALVE SHOWER COLD
64. s recommendations 34 electrastream controllable electric boilers 4 3 7 Pipework When all pipework has been installed disconnect from the Electrastream components and flush all pipework thoroughly When connecting to existing pipework remove all unwanted components create new pipe runs then flush thoroughly before connecting to the Electrastream components 4 3 8 Electrastream Components All Electrastream components and pipework are checked at the factory prior to dispatch however always check the connections for leaks on commissioning as transportation and installation can cause joints to move 4 3 9 Hot Water TPRV The temperature and pressure regulating valve TPRV fitted to the cylinder is to protect the cylinder from overheating and or over pressure IMPORTANT nder no circumstances The TPRV discharge must comply with Building Regulations G3 refer to pages 40 42 system be operated without the The valve will open if the system hot water pressure exceeds 7 Bar 10 cylinder TPRV fitted and working The valve will open if the system hot water temperature exceeds 90 to 95 C en The valve be manually opened by turning the green knob clockwise to close y continue turning clockwise until it clicks other purpose 4 3 10 Thermostatic Mixing Valve A Thermostatic Mixing Valve is supplied with the Electrastream It should be fitted between the cylinder hot water outlet and the draw off
65. safe place where there is no risk to persons in the vicinity of the discharge and be made of metal DISCHARGE PIPE junction boxes Fig 4 5a Tundish The Tundish must not be located near or above electrical components switches or 4 5 2 Expansion Discharge Self Sealing Valve A Hepvo Self Sealing Valve enables alternative discharge arrangements to be used requirements WARNING Scalding water and steam can be blown out of the discharge pipe Position the discharge so that it is not a hazard to property or people especially children Discharge pipes from safely devices Discharge pipe D1 3 49 Each of the temperature relief valves or combined temperature and pressure relief valves specified in 3 13 or 3 17 should discharge either directly or by way of a manifold via a short length of metal pipe D1 to a tundish 3 50 The diameter of discharge pipe D1 should be not less than the nominal outlet size of the temperature relief valve 3 51 Where a manifold is used it should be sized to accept and discharge the total discharge from the discharge pipes connected to it 3 52 Where 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 53 The tundish should be vertical located in the same spac
66. sh Tundish Discharge below fixed grating 3 60 gives alternative points of discharge Minimum size of discharge Valve outlet size to Tundish D1 Minimum size of discharge pipe from Tundish D2 Maximum resistance allowed expressed as a length of straight pipe i e no elbows or bends Resistance created by each elbow or bend 22 mm 28 mm 35 mm G 15 mm upto 9m up to 18 up to 27 m 28 35 42 up to 9 0 18 0 27 35n 42n 54 n n n n n n n See 3 49 and 3 56 and Diagram 1 0 18 0 27 p p pto9n p p Note The above table is based on copper tube Plastic pipes may be of different bore and resistance Sizes and maximum lengths of plastic should be calculated using data prepared for the type of pipe being used 41 electrastream controllable electric boilers Worked Example The example below is for a G 6 with a discharge pipe D2 having 4 No 22mm elbows and length of 7m from the tundish to the point of discharge From Table 1 Maximum resistance allowed for a straight length of 22mm copper discharge pipe D2 from a G temperature relief valve is 9 0m Subtract the resistance for 4 No 22mm elbows at 0 8m each 3 2m Therefore the maximum permitted length equates to 5 8m which is less than the actual length of 7m therefore calculate the next largest size Maximum resistance a
67. sioning amp servicing af mains pressure hot water storage Installation Commissioning and Service Record Log Book 48 4 3 Remove and clean in line strainer of combination valve see 4 3 3 Replace STAGE 5 CLEANING DHW SYSTEM 5 1 Using proprietary chlorination product chlorinate the domestic hot water system as per manufacturer s instructions 5 2 Drain the system as 4 2 then fill and drain to flush as many times as recommended by the chlorination product manufacturer 5 3 Refill system STAGE 6 HEATING SYSTEM PRE FILL CHECK 6 1 Check filling loop is fitted correctly 6 2 Check all radiator valves are fitted and tight 6 3 Check all radiator air vents are closed 6 4 Check all drain cocks are closed STAGE 7 FLUSHING AND FILLING HEATING SYSTEM 7 1 Carry out fill only after DHW system has been flushed and cleaned 7 2 Close all radiator valves 7 3 Connect filling loop and fill heating pipes using last radiator in line to bleed air 7 4 Check for leaks 7 5 Using hose and or suitable container drain heating pipes T 6 Repeat flushing pipes as required and fill 7 7 Open radiator valves and bleed air to fill all radiators 7 8 Drain heating system again 7 9 On final refill add proprietary additives as manufacturers instructions Fill to 1 Bar 7 10 Set pressure gauge red arrow to the black arrow cold fill pressure 1 Bar STAGE 8 SETTING AND TESTING CONTROLS 8 1 Switch on Electrastream mains
68. t Water System Cylinder WRC Certificate No 0605118 Electrastream Model et 2 BETP210 Cylinder Capacity 125 litre 150 litre 210 litre Coils single single twin Diameter 505mm 505mm 505mm Height 1015 1165 1405mm Weight empty 25kg 30kg 29kg Weight full 150kg 180kg 239kg Maximum Water Supply Pressure 12 Bar 12 Bar 12 Bar Operating Pressure 3 5 Bar 3 5 Bar 3 5 Bar DHW Expansion Vessel Size red 12 litre 12 litre 18 litre DHW E V Pre charge Pressure 3 5 Bar 3 5 Bar 3 5 Bar Cylinder TPRV Setting Pressure 7 Bar 7 Bar 7 Bar Cylinder TPRV Setting Temp 90 C 90 90 Maximum Primary Pressure 3 5 Bar 3 5 Bar 3 5 Bar Coil Surface Area twin top 0 67m 0 78m 0 67m Coil Surface Area twin bottom 0 67m Coil Rating twin top Electrastream 20 5kW 26 7kW 26 7kW Coil Rating twin bottom solar 26 7kW Cylinder Electrastream Volume 125 litre 150 litre 81 1 litre Cylinder Solar Volume 118 9 litre Reheat time At 60 C Electrastream 50 minutes 58 minutes 38 minutes Heat Loss in 24hrs 60 C 1 7 kWh 1 9 kWh 1 23 kWh 3 1 2 Combination Valve 3 1 3 Heating System Electrastream Model Electrastream Model ALL Pressure Reducing Valve Expansion Vessel red 8 litres Maximum Pressure to P Red V Pressure Relief Valve PRV Maximum System Expansion 7 litres Pre charge Pressure as supplied 1 Bar 3 1 4 Accumulator Recommended Max Charge Pressure 1 5 Bar Electrastream Model PLUS Maximum Working Pressur
69. taps The valve mixes hot water from the cylinder with cold water to provide hot water at the taps at a consistent temperature The valve is supplied with two check valves which must be fitted to the hot and cold supply It is recommended to fit a full bore service valve on each of the three pipes to the valve v SUPPLIED v MIXING VALVE v CHECK VALVE v CHECK VALVE S2 FROM f COLD e CYLINDER SUPPLY v CHECK PES ur AS MIX CONNECTED TO DRAW OFF TAPS DRAW OFF TAPS a y Fig 4 3d Thermostatic Mixing Valve VALVE CAN BE POSITIONED IN ANY ORIENTATION Notes Refer to the mixing valve manufacturer s instructions supplied with the valve for further information Put these with this manual The mixing valve is not guaranteed against corrosion or blockage caused by excessive scale see 4 3 5 35 electrastream controllable electric boilers WA Fig 4 3e Cylinder Drain 36 4 3 11 Cylinder Drain See fig 4 3 e The unvented cylinder cold feed is also used as the cylinder drain Inside the cylinder a syphon pipe is fitted when a hose is used to drain the cylinder a syphon action will drain maximum water from the cylinder Always use a hose for flushing and cleaning the cylinder It is not possible to fully drain the cylinder without using a hose 4 3 12 Secondary Return A secondary return may be f
70. the heating system and electricity supply to the Electrastream before removing covers and working the Installation Electrastream System this includes the room thermostat cover Commissioning and Service Record Log Book 6 1 1 Service Procedure 1 Confirm with the customer the unit s service history and locate Benchmark Logbook 2 Check cylinder model and serial number is listed in the Benchmark Logbook 3 Visually inspect cylinder s and vessels for damage metal failure and signs of leaks 4 Visually inspect all Electrastream pipework for damage metal failure and signs of leaks 5 Set control unit to midnight to run self test and check Electrastream control unit for error messages see fig 2 2a IMPORTANT 6 Record mains pressure system pressure and heating operating pressure Also carry out any service T Turn the heating OFF at Electrastream Control Unit requirements of specific 8 Turn the electrical supply to the Electrastream OFF at the isolating switch girl inicie 9 Momentarily open the combination TPR Valve and check that the water drains freely and safely to and from the tundish 10 Open combination PRV momentarily and close valve should shut off Repeat if Note valve sticks If valve will not shut off replace valve 11 heating TPRV momentarily and close valve should shut off Repeat if valve system is fully flushed following descaling sticks If valve will not shut off r
71. ure gauge 9 5 Lower air charge so that is 1 to 1 5 Bar below mains pressure Minimum Accumulator pressure is 0 8 Bar STAGE 10 HANDING OVER 10 1 Complete the Guarantee Form the top sheet of this MUST be sent to GAH HEATING PRODUCTS LIMITED or the Electrastream can be registered on line at 9 www gah co uk 10 2 Complete the Benchmark Logbook 10 3 The Installer should re check the system and ensure it is completely satisfactory before demonstrating to the end user 10 4 The end user should be aware of the following 1 The most cost effective use of the Electrastream system using economy and standard tariffs 2 How to set the temperature of the tap hot water Mixing Valve 3 How to Set all Electrastream Controller functions 4 How to set room thermostat 5 The function of the Pressure Relief Valves and Combination Valve and that over pressure will cause steam and scalding water to be emitted from the discharge pipes 6 That the Tundish is supplied as a visual identification for over pressure 7 The procedure to follow in the event of over pressure Refer to Fault Finding section 7 10 5 This manual and supplements must be left with the end user together with a copy of the completed Guarantee Form 49 electrastream controllable electric boilers Routine Service The Electrastream system should have a routine service at least once in 12 months JARENER IMPORTANT Always turn off
72. x22x ACCUMULATOR ACCUMULATOR CONNECTION v MI COUPLER x 22 x 34 y DRAIN COCK V MI COUPLER x 22 x 1 Domestic Hot Water 22mm 22x 4 M I Coupler supplied Fit 22mm Lever Valve supplied Accumulator Connection 22mm 22x 1 M I Coupler supplied Domestic Cold Water 22mm Fit 22mm Lever Valve supplied Mains Supply 22mm 22mm x 4 Coupler supplied Tundish Discharge to be arranged and sized to comply with Building Regulations Boiler Flow 22mm 22 MJ Coupler supplied Boiler Return 22mm 22x94 M I Coupler supplied V PARTS SUPPLIED Fig 4 7b Typical Cylinder Connections Electrastream Plus 4 elec 4 7 3 Connections to Electrastream Pre Piped trastream controllable electric boilers UNVENT HOT WA TUNDIS CYLINDE coc TUNDISH DISCHA CYLINDER TPR VALVE THERMOSTATIC MIXING VALVE FOR DHW COMBINATION VALVE ARRANGED AND SIZED TO COMPLY WITH BUILDING REGULATIONS HOT WATER EXPANSION VESSEL 8L ED CYLINDER CONSUMER UNIT C W DP ISOLATOR RCD amp MCB ELECTRASTREAM CONTROL UNIT o I
73. ystem develops a fault or is not operating as expected contact the INSTALLER JAN TO THE INSTALLER This installation is subject to Building Regulation Approval notify the Local Authority of intention to install Use only manufacturer s recommended replacement parts The following Information must be provided INSTALLED BY VON aes Completion Date ELECTRICS BY estes et ates NOR Completion Date electrastream controllable electric boilers Introduction GAH Electrastream Systems are protected pending patent applications Electrastream is a Trademark of GAH HEATING PRODUCTS LTD This Handbook has been compiled to assist in the Installation and Operation of GAH HEATING PRODUCTS LIMITED Electrastream domestic hot water and heating system 2009 GAH HEATING PRODUCTS LIMITED Notified Body NB 0558 After installation the Installer of the system should give full operating instructions to the householder for the Electrastream System This User and Installation Manual must be left for the end user 1 1 1 The Electrastream System The Electrastream system by GAH Heating Products Ltd has been developed as a cost effective solution for domestic hot and cold water and electric central heating with water filled radiators Electrastream is a 9kW 30 000 Btu system suitable for flats small dwellings off

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