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Choose SolarTM Solar Water Heater Installation and User's Manual

1. 1 Suction joint 6 Cable entry 2 Condensate outlet 7 Speed switch 3 Pump housing 8 Ventilation 4 Pressure joint 9 Rating plate 5 Terminal box 10 Motor housing 3 7 3 2 Connection to plumbing system When installing please note that 1 The pump and pump controls should be installed in an easily accessible position to facilitate future inspection or exchange 2 It should be mounted in the correct orientation See Figure 21 below in the collector flow line as to avoid being stressed by the pipe work Choose Solar O 2012 CS IUM 001 07 2012 Page 33 of 55 Choose Solar solar Water Heater Installation and User s Manual Figure 21 e The direction of the flow must correspond with the arrow on the pump housing 4 To avoid draining and refilling the whole system if the pump needs replacing the pump kit comes with a flow control valve before and an isolating valve after the pump These fittings also avoid any water from dripping onto the pump motor or terminal box 5 When connecting the pump to the pipes the pump can be secured against twisting using a spanner on key surfaces created for this purpose 6 To obtain the correct terminal box position loosen the motor fastening screws Step A and turn the motor housing Step B as shown in Figure 22 below Figure 22 7 The flow rate of the pump needs to be calibrated to obtain optimal heat transfer while maintaining smooth flow in the solar collector
2. Figure 5 Page 20 of 55 TM Choose Solar Solar Water Heater Installation and User s Manual Table 1 Pump Kit Provided with Wilo RS 15 6 pump Supplier Description Qty Gomon Pressure Relief Valve 1 Gomon Flow Indicator 1 Gomon Pressure Gauge 1 3 4 1 5 Storage Tank Model ID Brand Description CS L 150 Choose Solar 150L Stainless Steel Tank CS L 260 Choose Solar 260L Stainless Steel Tank CS L 300 Choose Solar 300L Stainless Steel Tank CS L 150e Choose Solar 150L SS Electric Storage Water Heater 1 5kW Element CS L 260e Choose Solar 260L SS Electric Storage Water Heater 1 8kW Element CS L 300e Choose Solar 300L SS Electric Storage Water Heater 2 0kW Element SEN e 0 0 0 m ee Figure 6 3 4 1 6 Gas Booster Model ID Model Name Brand Description YS1770RA Highflow 17e Bosch 17L Instantaneous Gas Heater Figure 7 Choose Solar 2012 CS IUM 001 07 2012 Page 21 of 55 TM Choose Solar Solar Water Heater Installation and User s Manual 3 4 1 7 System Controller Model ID Model Name Brand Description SR868C8 Solar Controller Shuangri Solar Water Heating System Controller Figure 8 3 4 1 8 Plumbing Kits Choose Solar has prepared plumbing kits specifically customised for Choose solar water heating systems For more information about the functions and requirements of key components in the
3. 3 1 1 Pre installation 1 Site inspection and planning 2 Installation preparation Choose Solar O 2012 CS IUM 001 07 2012 Page 13 of 55 Choose Solar Solar Water Heater Installation and User s Manual 3 1 2 Installation Process Transportation unpacking and inspection Solar collector installation Plumbing and gas connection Gas booster installation Controller installation System Commissioning Vacuum tube installation DUX E p P 3 1 3 Post Installation 1 Complete installation checklist 2 Checkhot water system operation 3 Take Photographs 4 Complete Installation Record and Warranty Forms 3 2 Site Inspection and Planning Please note that the installer is responsible for site inspection prior to the installation to determine the suitable type and size of system suitable installation location for solar collector and storage tank framework equipment and other items required for the installation WARNING It is very important to read and understand this installation and user s manual thoroughly before undertaking the installation Proper planning prior to performing the installation is crucial WARNING The installer is responsible to ensure that the installation of the solar water heater must NOT compromise the structural integrity of the building or installation site 3 3 System Design Choose Solar provides multiple system designs which comply with Australian Standards AS NZS 2712 and o
4. 4 Toreplace broken tube s l Remove the tube cap s slide broken tube out and carefully pick up any glass pieces Protective gloves must be worn when handling broken glass Il Avoid touching the glass wool insulation inside the manifold with bare hands as it can cause mild skin irritation lll All broken tubes need to be fully replaced WARNING Tube replacements must only be done by an authorised person s such as the original installer 4 2 Prolonged System Idle If the hot water system is not used for two weeks or more a quantity of hydrogen gas which is highly flammable may accumulate in the water heater To dissipate this gas safely it is recommended that a hot tap be turned on for several minutes at a sink basin or bath but not at a dishwasher clothes washer or other appliance During this procedure there must be no smoking open flame or any electrical appliance operating nearby If hydrogen is discharged through the tap it will probably make an unusual sound as with air escaping 4 3 Six Monthly Service It is recommended that the PTR valve be operated once every 6 months to maintain reliability of the water heating system WARNING It is important to lift the lever gently and be careful of the water that is being discharged as it can be very HOT This procedure may be carried out by the end user provided that it is done with all relevant occupational health and safety regulations met If in doubt contact you
5. Refer to system diagrams in Section 3 3 System Design for the approved plumbing arrangement and also locate the best position for the storage tank See Section 3 7 2 Storage Tank Installation The installer should already have planned out the best plumbing routes prior to carrying out the installation WARNING Only potable water grade brazing material can be used when soldering any part s of the plumbing system Care must be taken to avoid any overheating of system components which may cause damage Choose Solar will not be held responsible for damage caused by excessive soldering heat 3 7 1 Insulation Proper insulation is very important in avoiding any substantial heat lost through the plumbing in order to maintain good efficiency of the water heating system Choose solar has customised insulators for the valves and fittings as supplied with the Choose Solar plumbing kits The installer must ensure that these insulators are in place and also be responsible for the following 1 The external plumbing pipes should be well insulated by insulators with a minimum thickness of 15mm or 25mm in colder climates Internal pipes particularly the section closest to the tank should be also insulated Any insulation exposed to sunlight should have a protective layer such as adhesive aluminium foil and vinyl film to protect against ultraviolet UV degradation NOTE More details regarding the insulation requirements are provided in section 8 of A
6. WARNING Electrical connections must only be carried out by an authorised person WARNING The installer e g licensed electrician must ensure that the system is properly earthed WARNING All safety measures set out by relevant Australian Standards and product manufacturer must be observed A contactor is supplied to further protect the system Choose Solar O 2012 CS IUM 001 07 2012 Page 38 of 55 Choose Solar Solar Water Heater Installation and User s Manual Supply 240 V AC 50Hz Neutral Active e e Contactor ST13 ST12 Top View Heating Element Figure 28 3 10 Controller Installation Refer to Section 3 10 3 Circuit Diagrams for the recommended electrical circuit and also locate the best position for the system controller The installer should already have planned out the best electrical routes during or after the initial site inspection prior to carrying out the installation WARNING Only an authorised person e g qualified licensed electrician can perform the electrical tasks 3 10 1 System Controller Choose Solar supplies an intelligent solar system controller which has multiple functions Among its main functions are controlling the circulation pump as well as provide antifreeze and overheating protections This controller also has the ability to switch between the main circulation pump and the auxiliary pump in the case of Residential System Design
7. bd a MERE a base il od EE d Kliplok roof bor EE BEBE D TI A Batten Batten Min 25mm Min 25mm Max 50mm Max 50mm E Choose Solar 2010 A Z z Figure 14 Corrugated roof mount A a Choose Solar 2010 Es PA Figure 15 Corrugated roof mount flat valley type Choose Solar 200mm SP Mounting Screw Illustration Scenario Steel purlin CS MS 200 SP Silicone sealant required all around base Choose Solar Rail Mounting Bracket CS003 Choose Solar 50mm Spacer Block CS SB 002 Stainless steel washer Fibre washer Roof sheet Steel purlin Choose Solar O 2010 Figure 16 Steel purlin mount Choose Solar 280mm Mounting Screw Illustration Scenario Tiled roof Choose Solar Rail Mounting CS MS 280 Bracket CS003 Nut Silicone sealant required all around base 101 Closed cell EA foam washer Top of peak Batten Min 25mm Max 50mm Lower tile T T ze F Choose Solar O 201 inm i E Figure 17 Tiled roof mount Choose Solar O 2012 CS IUM 001 07 2012 Page 29 of 55 Choose Solar solar Water Heater Installation and User s Manual 3 6 4 Frame Alignment The frame must be balanced in order to avoid any damage to the vacuum tubes
8. setting in the manufacturer s manual WARNING Deviating from the instructions provided in the manufacturer s manual could adversely affect solar performance Intelligent Controller For CS Solar Water Heater Transfer Choose Solar Figure 30 Item Button on display panel Description 1 Green LED Power indication lamp 2 On Off Power button 3 A V Adjust Adjusting buttons 4 AT To set switch on off temperature difference of solar circulation Manual AT Manual commissioning to trigger temperature difference controlled solar circulation 6 OK Activate Deactivate one function 7 C F Celsius Fahrenheit transformation button 8 SET 9 Pipe timing To set time for hot water pipe circulation 10 Recovery To recover the display to factory set mode 11 Temp Display Display temperature in different position one by one 12 Clock Set Clock 13 Heating Electrical heating time set 14 Transfer Transfer button 15 LCD display screen Choose Solar 2012 CS IUM 001 07 2012 Page 44 of 55 Choose Solar Solar Water Heater Installation and User s Manual 3 11 System Commissioning Start up the solar water heating system by first filling the storage tank according to the procedure on the next page followed by commissioning of other components 3 11 1 Filling Hot Water Storage Tank Fill the storage tank with water whe
9. 3 4 System Diagrams 3 3 4 1 Choose Solar Residential System Design A RSD A Gas Boosting TTOZ OTOZ Je os asooy TTOZ ZO TT TOO Dd W 0SY S9 JT SS 990917 s103e nsui pasiuo3sno yum yy Bulquinjd ejos asooyd aie duioo e se pepi oJd ale DAY Aq palddns siuauoduo sjuauodwod enyoe se aues ay pp9exa aq 30u Aew pue aping e se antas juo squeuodujoo jo sadeys ay azis ene ay 0 eAne eJ oles Ids ye uweJp JOU ade 2neuleuos siy ur sSuriwejp aur Ula1s s au jo uoneJado 3224102 pue ajes ay se jam se o pasaype ase saulaping pue suone n8aJ spiepueis juenajas eJnsua jsnul ja ejsu au paquosaud se sjuaeuoduJoo JO UBIsap ay Ja3je JOU JsNW 49 e1sut au paroidde ZTZZ SZN SV s u8isep ueis s siu 9310U aSea d jddns 19336 30H mmm 1 01 82 zoep Paw uojuf dwog X 4 T SAV Wa apouy u e1001 67 e8ne5 aunssalg UOWOD vH m pul ez dung Meilen dund OlM OI ST Z 1e1S LZ 9 eA A2949 e1n3e1eduia YBIH Y SAV OST 3ST 1HAN 97 uotuf ALO Y X N SAV Sc Joje ipu woj4 uouio5 E vc ed 009 AeA Jain aunssaig uouo5 r c Sg aa duo y SAV e Sn d sseJg dsg Y SAV TZ Bnid deg SAV 0c uoun ALO X N Y SAV 8080 038 6T uolun AMO Y X 4 SAV OsTIJOZNI9 8T MOQ 3 duio5 X 3 DAN 80805T38 ZT uoun IA Y X dwog wwz SAV 80lINCCEO0d8 9T uon euuo JOH uoluf WWIZZ DAN 2Hhccd8d ST 401eulul 3 AI
10. 4 Maintenance and Service Calls Regular maintenance of the solar water heater will ensure uninterrupted optimal performance This usually begins with general observations of the water heating system followed by service calls if required and scheduled maintenance services 4 1 General Observations If you are experiencing a lack of hot water or suspect there may be some irregularities Observations Normal Condition 1 Is your hot water consumption level unchanged Yes 2 Isthe system controller switched ON Yes 3 Is the gas booster switched ON Yes 4 Doesthe gas meter speed up when the booster is switched ON Yes 5 Have nearby trees overgrown to cause shading No 6 Areany leaks within the plumbing system observed Visual check No only 7 Arethere any broken glass detected near the solar collectors No 8 Is your area constantly exposed to freezing conditions No 9 Is your area constantly experiencing power failures No When you have answered all the questions above and one or more item s is causing concern contact the installer of the system or an authorised person to discuss and or organise a service visit If all the above turn out to be in their normal condition then the following procedures may apply e Cleaning Regular rain should keep the collector tubes clean however if they have become dirty they may be cleaned carefully with warm soapy water and a clean dry cloth ONLY IF they are safely accessible Otherwise the i
11. B to optimise solar contribution while minimising gas boosting and meeting end user hot water demand in all weather conditions The system controller should be placed indoors and away from any safety hazards as well as electromagnetic fields For detailed installation configuration and operating instructions please refer to the original manufacturer s manual provided Choose Solar O 2012 CS IUM 001 07 2012 Page 39 of 55 TM Choose Solar Solar Water Heater Installation and User s Manual WARNING Make sure the temperature sensors and pump s are connected to the system controller before connecting the power supply WARNING The system controller must be switched ON at all times to ensure the solar water heating system operates safely efficiently and is protected i e freeze protection operational 3 10 2 Terminal Connection The Choose Solar system controller comes with four sensor inputs where only two will be used with System Design A and three will be used for System Design B Figure 29 below shows the terminal connection ports of the system controller and each of their corresponding functionalities are described in Table 6 to Table 9 Output Ports Input Ports Reset O l l lelejeejejejeje Ld Ld L Ld 2 4 29 OS LIIN H1 P1 P2 R1 S US os i Pipe Circuit Electro y 7 T1 T2 T3 T4 Power S Heating
12. Heater Operation When the solar collectors are installed they will begin to produce heat after 2 to 10 minutes depending on the insolation at the time Check the system controller and pump for correct operation and adjust settings as required 3 13 3 Take Photographs a Always take photos of the solar water heating installation particularly the solar collectors on the roof as record These will serve as useful and important records if you ever receive a phone call from the owner about the installation These photos may also be required by the Regulator or relevant authorities during system audits b Send a copy of ALL installation photos to Choose Solar as a record of the installation and for the warranty of the products to be valid If your installation shows exceptional workmanship your photos may be advertised on the Choose Solar website to promote your work See next section for contact information 3 13 4 Complete Installation Record and Warranty Forms Complete the triplicate installation record and warranty form which is at the rear of this manual and also available from Choose Solar The form should be completed with the original and a copy left with the owner and a copy retained by the installer The owner is required to fax mail or email the original copy to Choose Solar s address on the warranty form Choose Solar O 2012 CS IUM 001 07 2012 Page 47 of 55 Choose Solar Solar Water Heater Installation and User s Manual
13. If you have any questions please feel free to contact your local Choose Solar dealer 1 2 Solar Water Heater A Solar Water Heater SWH as its name implies utilises the solar energy from the sun to supply thermal energy to heat your water Your Choose Solar water heater is designed to combine the use of both solar energy and purchased energy to supply hot water to your residence and commercial property SWHs are playing an important role in displacing the greenhouse gas emissions from conventional water heating which is currently the largest single source of emissions from the average Australian home You will experience performance and energy savings after installing the Choose Solar water heater However actual improvements will depend on factors such as water usage weather temperature available solar energy and the cost of purchased energy 1 2 1 Solar Water Heating Process The vacuum tubes on the roof are the solar collectors which absorb the solar energy and convert it to usable heat An electronic controller monitors the temperature of the water in the collector and the water at the bottom of the tank When the temperature in the collector is greater than that of the tank it will supply power to the pump to circulate water through the heat exchanger and back to the tank This process is repeated to heat up the water in the tank Finally hot water is delivered to the end user through an instantaneous gas heater which further heats
14. XD aa A ee Rae ehe por re E E neg erp ente re ri RA Ei 37 3 9 Electrical Connection For Electric Storage Water Heater entente 38 3 10 ControllernstallatiOn ici dactilar EE Eee ua duo de e e aea E eO cia 39 E LA EE gu Ee uge TE 39 3 10 2 Terminal Connection 40 3 10 3 Cif e UR IEN E 42 Choose Solar O 2012 CS IUM 001 07 2012 Page 1 of 55 Choose Solar Solar Water Heater Installation and User s Manual 3 10 4 Programming System Controller ra ae a saaa deea E aA N eaa aean E aean raa SEATS 43 Va EE un Bel ln lee EC 45 3 11 1 Filling Hot Water Storage Tank 45 3 11 2 Gas A a mee eet bte mte EHE Mr te ides te e RON 45 3 113 System Controller 6 A ON 45 3 12 Vacuum Tube Installation 3 2 rr itt Ree ads 45 EM E Posrtlnstallaton E 46 3 13 1 Complete Checklists 55 ro eo ere er RB RE ERE RR deeg 46 3 13 2 Check Solar Water Heater Operation 47 3 13 3 Take Photograplis zeigen Ee HR REN E ENEE 47 3 13 4 Complete Installation Record and Warranty FOrmsS s essessessessserssssesssereessssserrersessesrrereesessrerreesessne 47 4 Maintenance and Service Calls d Zus eeegeedEN nan inn hoo aene nana a ENEE Pea nana napa EY caia Ra A Pes aes ena ERE ES 48 4 1 General Observations nennen eerie eee ene eae en aane e ena de ean ee a oap ee eo na ea eae eed o neues 48 4 2 Proloriged System Idle e a esee EN dn 49 4 3 Six Monthly ServICe E 49 EN Lee 49 44 1 Draining the Hot Water Tak cada 50 A ALD InsulatiOR
15. leather gloves when handling heat pipes e Always wear safety glasses when handling glass Choose Solar does not take responsibility for tubes damaged during transport or installation Choose Solar O 2012 CS IUM 001 07 2012 Page 22 of 55 TM Choose Solar Solar Water Heater Installation and User s Manual 3 6 Solar Collector Installation 3 6 1 Orientation The orientation of the solar collector is extremely important to achieve the best performance out of the solar water heating system In particular the following items need to be considered 3 6 1 1 Collector Direction The collector should be facing north as much as possible to receive best solar insolation 3 6 1 2 Pitch Range Refer to the Recommended Collector Angles shown in table below Table 2 Recommended Collector Angles Location Latitude Acceptable Optimum Pitch Optimum Pitch Pitch Range for annual performance for winter performance Adelaide 35 0 20 61 35 0 61 0 Alice Springs 32 0 20 58 32 0 58 0 Brisbane 27 5 20 54 27 5 54 0 Canberra 33 0 20 59 33 0 59 0 Darwin 15 0 20 43 20 0 43 0 Hobart 42 5 20 67 42 5 67 0 Melbourne 37 5 20 63 37 5 63 0 Perth 32 5 20 58 32 5 58 0 Sydney 34 0 20 60 34 0 60 0 3 6 1 3 Shading Issues It is recommended that all shading be avoided between 9am to 3pm as most of the solar energy heating the water is coll
16. mg L or ppm Magnesium 10 mg L or ppm Sodium 150 mg L or ppm Electrical conductivity 850 uS cm pH levels Min 6 5 Max 8 5 If water supply is very hard 200 mg L or ppm the recommended solution is to use water softening treatment to ensure long term optimal operation of the water heating system Always consult your installer regarding your water quality issues Failure to address the water quality problems will result in voiding the warranty 2 5 Corrosion In warm environments water with high chloride concentration can become a corrosive agent In order to provide maximum corrosion resistance the Choose Solar solar collectors use high purity 99 9396 copper piping for the manifold The stainless steel tanks have also undergone rigorous corrosion resistant treatment Hence Chloride levels present in most reticulated potable water supplies are safe to be used with the water heating system It is not suitable however to utilise the solar water heater to heat chlorinated pool or spa water which has free chlorine concentrations above the recommended levels as indicated in the Section 2 4 Water Quality 2 5 1 Galvanic Corrosion Galvanic corrosion can occur when two dissimilar metals are in moist contact Zinc galvanised components should NOT be installed in direct contact with stainless steel as galvanic reaction between them may cause corrosion of the zinc coating and the steel underneath ZincAlume steel is less s
17. requirement of AS 3498 for the Choose Solar water heating systems If it is not factory set at 70 C it must be manually set All requirements for consumer piping flueing ventilation and appliance installations which are associated with the use of fuel gases such as natural gas and liquefied petroleum gas LPG outlined in Australian Standard 5601 AG 601 MUST be complied with WARNING All safety measures set out by relevant Australian Standards and product manufacturer must be observed 0009000 NA 4 N BOSCH highflow477e ooo ooo Figure 27 Choose Solar 2012 CS IUM 001 07 2012 Page 37 of 55 TM Choose Solar Solar Water Heater Installation and User s Manual NOTE It is recommended that the gas heater and gas supply is turned ON only after the solar water heating system is being commissioned 3 9 Electrical Connection For Electric Storage Water Heater Electrical work for electric storage water heater MUST only be carried out by an authorised person in accordance with AS NZS 3000 Wiring Rules and any other relevant standards The circuit isolation and fixed appliance regulations of the Wiring Rules must be complied with The Choose Solar electric water heaters are designed for 240 V AC supply only The wiring diagram shown in Figure 28 in the following page and 3 10 3 Circuit Diagrams indicate the correct connection for the element s and thermostat s Connection for the eleme
18. see seee eese seee esee eeeeeeeeeeeel 13 K NDCHEN el Ell le EE 13 3 1 1 Pre installationi etie erre cheer etch ko oet Pe Phat bie Poe Vae aree eh tie eene qo eaae en ela adea een EEN 13 3 1 2 Installation Oe le 14 3 1 3 Post Installat O E PSP LEE 14 3 2 Site Inspection and Planning 14 O A E 14 3 3 ET Ou Klee 14 SA a E DERE DERI ONU EEN 15 313 3 Commercial Property creer ertet eene reno a ee E eh euge e corse egg eae eee erae Eege dicta 15 3 3 4 System Diagrams Eee pete E Deet Eege e eege 16 3 4 InstallationPreparation s ENEE 19 3 4 1 Component List hiec eterne ida 19 3 5 Transportation Unpacking and Inspection sisse nnne nnns nnne 22 3 5 T TUDE INSPECTION KEE 22 3 6 Solar Collector Installation ia e RE ree ee e Erit a dais 23 ERC el Le EE EE 23 3 6 2 Tue E ae EE 23 356 3 ROOF e Ten EE 28 3 6 4 Frame Alignment ee ro t ete E eae e ena a dest been dara cr oreste Pee tee ge eaa tage dose Rose cias 30 3 6 5 Manifold Inst l atlOFi 5 22 rere Irt Ains 30 3 7 c Pl mbingiCohrnection 5 ruect cota evan Eege eoo eeu Ada Shea e eege Ob et baa Ehe phe e REIS ec ead ro 30 is Vu ae GIOUN e 31 3 7 2 Storage Tank Inst llatiOr 4 uier irren err ente coevenutedscdoceevenvedeiedacdodeen etae aen E a e nego 31 3 7 3 Circulation Pump Installation Wilo RS 15 6 seen nnne nnns 32 3 7 4 Auxiliary Pump Installation For RSD B only Wilo Star ZIL 36 3 8 Gas Booster Installation 2 rrr teet
19. solar absorbers that collect the solar energy to heat the heat exchanger fluid for water heating purposes Fully sealed vacuum tubes which are more efficient in solar energy capture and heat transfer than standard vacuum tubes The effect of temperature layering effect that occurs in water i e hot water rises and cold water sinks to create layers of hot and cold water An electrical device that provides emergency power from storage battery inverter and charging unit to a load when the power supply i e utility mains fails CS IUM 001 07 2012 Page 4 of 55 Choose Solar Solar Water Heater Installation and User s Manual 1 End user Information 1 1 Introduction This installation and user s manual provides easy to follow instructions for the correct installation and operation of your Choose Solar solar water heater This manual is an essential reference for both the installer and owner of the water heating system Please read and understand the installation and operating guidelines contained in this manual for smooth operation and optimal performance of your Choose Solar water heater Please also pay extra attention to any NOTE S and WARNING S provided throughout the manual This manual contains important information regarding the safe installation and operation of the water heating system NOTE S requires extra attention while WARNING S requires strict attention to prevent setbacks such as injury or installation faults
20. solar water heaters Only authorised person s can inspect and repair the solar water heater installation If you have any queries regarding any of the following issues please contact your local Choose Solar retailer Issue Possible cause s Solution s 1 Not enough hot Gas booster is not Make sure gas booster is operational Check water configured properly manufacturer s manual for troubleshooting procedure Damaged tubes Check the vacuum tubes and replace as required 2 Pump always Insufficient flow rate Change the pump to higher speed setting running 3 Pump continuingly Flow rate too high Change the pump to lower speed setting starts and stops 4 Pump notrunning Power supply failure Check system controller power output to pump Solar collector sensor Check temperature probe in collector port faulty or not inserted reapply thermal paste and reaffix replacing properly as required 5 Pumprunning at Freeze protection in It is normal in cold weather that this night operation happens If it occurs regularly more insulation is required Storage tank sensor faulty Check temperature probe in storage tank port reapply thermal paste and reaffix replacing as required 6 Pressure Faulty PTR valve Replace PTR valve Temperature Relief Too much hot water is Check temperature setting in system PTR valve being produced controller and the temperature probe in conti
21. the Installation and User manual is provided to the customer YES NO Installation Report and Warranty Form has been completed with two copies including the original left YES NO with the customer A copy is retained by the installer the second copy sent to Choose Solar with photos of installation work 1 2 3 4 9 6 7 8 9 1 Individual components may have their own manufacturer s installation checklists e g Gas Heater which must be checked as well All items should be marked for the installation to be considered complete and satisfactory IMPORTANT The above checklist is only intended to serve as a guide There may be site specific installation procedures not included on this list Installation of the Choose Solar water heating systems must be carried out in accordance to all applicable Standards and Regulations by qualified tradesperson s who hold relevant industry licenses or certificates required for completing the installation and or related work Warranty is covered under the terms and conditions outlined in the Warranty section in the Choose Solar Solar Water Heater Installation and User Manual ADDITIONAL COMMENTS Installer to retain this copy of form CS IRWF 001 07 2012 Choose Selar INSTALLATION REPORT amp WARRANTY FORM Choose Solar s Copy CUSTOMER INSTALLER DD MM YYY Y Licence No cccceeeeeeeeeeeee eres INSTALLATION
22. to be set followed by a choice of system operation For detailed installation configuration and operating instructions please refer to the original manufacturer s manual provided The system controller interface is shown in Figure 30 below The controller setting for Residential System Design A RSD A corresponds to the 1 Collector array 1 Storage tank 1 Pump setting in the manufacturer s manual The controller setting for Residential System Design B with auxiliary pump RSD B corresponds to the 1 Collector array 1 Storage tank 1 Pump 2sensors on tank setting in the manual However please note that the auxiliary pump i e labelled P2 will NOT be connected to the P2 terminal on the system controller but H1 i e heating terminal Please refer to circuit diagram of RSD B in Section 3 10 3 Circuit Diagrams Choose Solar O 2012 CS IUM 001 07 2012 Page 43 of 55 Choose Solar solar Water Heater Installation and User s Manual The auxiliary pump functions like a heating device See Section 3 7 4 Auxiliary Pump Installation For RSD B only Wilo Star Z 15 and should be set to operate during peak water usage i e Evening if temperature is below 60 C For other settings follow the instructions in the Operation Instruction manual supplied by the manufacturer The controller setting for Residential System Design C RSD C corresponds to the 1 Collector array 1 Storage tank 1 Pump and Auxiliary Heating
23. to circulate the water through the closed loop circuit The circulating pump shall draw the water from the bottom section of the Choose Solar 2012 CS IUM 001 07 2012 Page 32 of 55 TM Choose Solar Solar Water Heater Installation and User s Manual heat exchanger and circulate this water through the solar collector before returning it to the top section of the heat exchanger Refer to system diagrams in Section 3 3 System Design for the plumbing connection details Water and water food grade glycol mixtures in a ratio up to 1 1 can be used with the pump Contact Wilo or Choose Solar concerning the use of other fluids Also see Section 2 6 Freeze Protection for more information The circulation pump is provided with a pump fitting kit of a flow indicator control valve before and an isolating valve after the pump This arrangement also avoids cavitation by having about 15 cm of straight plumbing at both ends of the pump WARNING Only install the pump when the welding soldering of the plumbing system is completed and any impurities within it have been flushed out Foreign material such as dirt in the pipe system can cause damage to the pump NOTE Choose Solar plumbing kit uses compression fittings which do not require welding or soldering 3 7 3 1 Pump components Table 4 Pump Components provides a list of items which corresponds to the numbered components of the pump in Figure 20 above Table 4 Pump Components
24. up the water to a prescribed temperature as required This process is illustrated in Figure 1 on the next page Choose Solar O 2012 CS IUM 001 07 2012 Page 5 of 55 Choose Solar solar Water Heater Installation and User s Manual Solar Collector on roof System Controller Instantaneous gas heater Storage Hot water outlet to end user Cold water Circulation pump supply Choose Solar O Figure 1 1 2 2 The Choose Solar Advantage There are many types of Solar Water Heaters in the market and Choose Solar supplies superior quality vacuum tube collectors stainless steel tanks and supplementary boosters Choose Solar supplies the advanced Super Heat Conduction Metal Vacuum SHCMV tubes fully sealed vacuum tubes which are more efficient in solar energy capture and heat transfer than standard vacuum tubes There are two technology patents in solar energy utilisation which are associated with the SHCMV vacuum tubes The patents are e Glass metal heat envelopment craftwork Patent No 79149 e Exhausting set for SHCMV tube Patent No 455502 Manufactured with cutting edge technology SHCMV tubes are able to offer many additional benefits over standard vacuum tubes which are commonly available in the market SHCMV tubes can achieve higher heat conduction effectiveness than normal all glass tubes by more than 10 These tubes sustain much lower heat losses less than 0 8W m C and can resist extr
25. 0 years e Better Efficiency The superior insulation combined with the high heat transfer efficiency means that vacuum tube solar collectors can deliver higher average energy output This is because compared to other collector technologies their higher efficiency earlier in the day during overcast conditions and cold seasons could result in higher average performance Choose Solar O 2012 CS IUM 001 07 2012 Page 7 of 55 Choose Solar Solar Water Heater Installation and User s Manual 1 3 Gas boosting Under normal circumstances the standard recommended size of solar water heater alone will not be able to provide all the energy required to produce hot water all year round Choose Solar supplies an instantaneous gas booster as a complementary heating device if natural gas or Liquefied Petroleum LP gas is readily accessible Natural gas burns five to six times cleaner than coal per unit of energy delivered Hence this form of purchased energy is less harmful to the environment 1 3 1 Instantaneous Gas Boosting The solar collector acts as a pre heater when an instantaneous gas booster is in place If the water entering the gas heater is already at a suitable temperature it will not ignite Only when the required water is not already adequately heated by the solar heating system then the water is further heated by the gas booster This is therefore a more efficient system arrangement Choose Solar has systems which utilise an instantan
26. 07 2012 Page 40 of 55 Choose Solar Solar Water Heater Installation and User s Manual 3 10 2 1 Temperature Sensor Installation It is strongly recommended that the temperature sensors supplied with the system controller be used The Pt1000 temperature sensor is approved for use with solar collectors A 1 5m all weather resistant silicon cable is supplied with it They are both temperature resistant up to 280 C The NTC10K B 3950 temperature sensors are approved for use with tanks and pipes It is equipped with 1 5m PVC cable and they are temperature resistant up to 105 C Please note that 1 Itis not necessary to distinguish the positive and negative polarity of the temperature sensor connections 2 All sensor cables carry low voltages and it is necessary to avoid inductive effects so sensor cables should not be laid close to high voltage cables minimum separation of 100mm or otherwise adequately shielded 3 Sensor cables may be extended to a maximum length of around 100 metres When the cable length is up to 50m 0 75mm cables should be used When the cable length is up to 100m 1 5mm cables should be used 4 Before installing the sensors into the solar water heating system e g header tank etc make sure the temperature probe ports are free of moisture After which the probe should be coated with a thin layer of thermal paste if applicable and attached to the port firmly If the fit is too loose add a piece o
27. 12 Choose Solar O 2012 Choose Solar solar Water Heater Installation and User s Manual 3 4 Installation Preparation When preparing for an installation ALWAYS 1 Check components See 3 4 1 Component List Section below for complete list that you will be transporting to the installation site to make sure they are all in good condition before departing Bring along spares of key components such as vacuum tubes and fittings Ensure any required tools and safety equipment are taken to the installation site Ensure a copy of this installation manual is available for reference grobe m Bring a digital camera to take photos of the completed installation WARNING The installer must adhere to occupational health and safety regulations outlined by relevant organisations or bodies The installer s is responsible for his her their own safety at all times 3 4 1 Component List This section lists all the equipment supplied for installation of the standard Choose Solar systems Check the system designs for the corresponding components required If any components are missing or additional parts are required please contact your local Choose Solar supplier 3 4 1 1 Collector Tubes Model ID Model Name Brand Description GM70 1900 SHCMV Gomon 70mm Solar Vacuum Tubes Figure 2 3 4 1 2 Manifold and Frame Aluminium alloy manifold and stainless steel flat roof stand Choose Solar 2012 CS IUM 001 0
28. 7 2012 Page 19 of 55 Choose Solar solar Water Heater Installation and User s Manual 3 4 1 3 Solar Collector Specifications Figure 3 The solar collector dimensions and weights corresponding to the SHCMV tube type installation Number Collector Water Aperture Working Overall of Weight i Dimension Collector Model Capacity Area Pressure vacuum kg L m MPa LxWxH tubes mm CS SC 10 10 45 100 1 58 0 6 1088x1302x1372 CS SC 15 15 60 150 2 4 0 6 1578x1302x1372 CS SC 20 20 80 200 3 22 0 6 2068x1302x1372 CS SC 25 25 105 250 3 98 0 6 2666x1302x1372 CS SC 30 30 125 300 4 85 0 6 3062x1302x1372 Collector weight consists of the weight of completed solar collector i e Vacuum tubes manifold and frame that is filled with water NOTE 1 Stainless steel frames are coupled with aluminium alloy manifold for flat roof type installation 2 These specifications serve only as a guide and are subject to change without notice e g the height may be influenced by the angle of the roof 3 4 1 4 Circulation Pump Model ID Model Name Brand Description Purpose RS 15 6 Wilo star Wilo Glandless circulation pump For heating circuit with threaded connection Figure 4 Z15 Wilo star Wilo Glandless drinking water For booster water Circostar circulating pump circulation Figure 5 Figure 4 Choose Solar 2012 CS IUM 001 07 2012
29. CHECKLIST Solar collectors face as close to north as possible YES NO Solar collectors are not significantly shaded between 9 am and 3 pm YES NO Solar collectors are not likely to be struck by falling objects such as branches or other nearby objects YES NO Solar collectors are installed at an angle of between 20 80 preferably at latitude angle or higher YES NO In areas prone to large hail above 35mm collector is installed at an angle of 45 or greater YES NO Frame is secured to structurally sound roof wall YES NO No leaks are observed in plumbing YES NO Plumbing pipe runs are well insulated YES NO Exterior insulation is protected against sunlight with foil wrap or equivalent YES NO Heating Heat exchange circuit and lines to heater and tempering valve are all 15mm copper no plastic YES NO olives used Functional checks for controller and pump have been completed YES NO Pressure relief Pressure Temperature Relief and Expansion Control valves must have dedicated drain YES NO pipes which will discharge only into high temperature resistant drains and will not pose any dangers Pump controller and all electrical connections are protected from water ingress YES NO Vacuum tubes are clean or have been cleaned YES NO The basic operation of the collector has been explained to the end user YES NO Water quality has been checked YES NO A copy of the Installation and User manual is provided to the customer YES NO
30. Choose Selar Choose Solar Solar Water Heater Installation and User s Manual Choose Solar Solar Water Heater Installation and User s Manual Contents Yd e H 3 Glossaty EE 4 1 End user Information 5 rene eren teni en een oh S enin annuae a go SER PR eee Vou E CR See AER EEN Age 5 Ba AA RR RE LEE 5 1 2 Solar Water Heater 2 eene n aumente Mie 5 1 2 1 Solar Water Heating Process iei eene ENEE NEE eere eg epi edad ee ENEE enn ado 5 122 The Choose Solar Advantage note Eme eet eot ali 6 12 3 Vacu m TUBE Collector omnia teque Pea een ta cad Pa EE Rua ke Re cO EXER Ebo e RH inn eu E ORC e TUR nee 7 1 3 Gas ele secet a Mecsas Prep OT e e n p A OT EH araceli 8 E Wo A A roe ete ete eee oe age ree teen RN 8 2 Important Information ET 9 2 1 Standards and Regulatory Reoulrements sessi eene nennt rn an assistenti rena assess ensi aa 9 2 2 Water Pressure sot o EUN ede due bee de roti ed i ber e pri eiiis tre dus 9 2 3 Water Tepe E Le 10 2 4 Water QUALITY EE 11 ZO COLT OSION E aee p c t ee As 11 PAS ME Galvanic CO go To KEE 11 2 6 Freeze rotes geesde EES 12 2 7 Wind Loading ec 12 DEM ici 13 2 9 Lightning Protection eoo tte der laca den rni ea eee odio ten ree aee testet ee condi do be cete Eee eee ee rade n Rec Cua 13 2 10 Stainless Steel Tanks and Hydrogen Build up 13 3 Solar Water Heating System Installation for Installer
31. E ATon AT or Pipe ircut magnetic ew to Display No 01 Figure 29 Table 6 Legend Abbreviation Function T1 Input port of collector temperature sensor T1 T2 Input port of tank temperature sensor T2 bottom T3 Input port of tank temperature sensor T3 above T4 Input port of hot water pipe temperature sensor optional No 01 Connection port for display panel Power Power input port Ground Protective conducting wires earth lines Heating Output port of electrical heating H1 used for auxiliary pump instead ATon AT ott Output port of temperature difference circulation pump P1 Pipe Circuit Output port of hot water pipe circulation pump P2 Used for the function of tank high temperature protection in systems with tanks Electromagnetic Valve ug which have two heat exchangers inside Reset Restores factory default settings Table 7 Power Connection Connection Type Description Power Power supply connection Please note the type of power supply required from the type of label on the case of the device amp Earth line The protective earth line must be connected Ground Table 8 Input Ports Input Type Description T1 For Pt1000 sensors For measuring the temperature of collector T2 T3 T4 optional For NTC10K B 3950 sensors For measuring the temperature of tank or pipe No 01 3 core wire connected Do not modify this display with display Choose Solar O 2012 CS IUM 001
32. Installation Report and Warranty Form has been completed with two copies including the original left YES NO with the customer A copy is retained by the installer the second copy sent to Choose Solar with photos of installation work 1 2 3 4 9 6 7 8 9 1 Individual components may have their own manufacturer s installation checklists e g Gas Heater which must be checked as well All items should be marked for the installation to be considered complete and satisfactory IMPORTANT The above checklist is only intended to serve as a guide There may be site specific installation procedures not included on this list Installation of the Choose Solar water heating systems must be carried out in accordance to all applicable Standards and Regulations by qualified tradesperson s who hold relevant industry licenses or certificates required for completing the installation and or related work Warranty is covered under the terms and conditions outlined in the Warranty section in the Choose Solar Solar Water Heater Installation and User Manual ADDITIONAL COMMENTS Please complete and return this form immediately after installation to Choose Solar Pty Ltd 17 Gatwick Road Bayswater North Vic 3153 Phone 03 9761 5371 Fax 03 9720 7582 CS IRWF 001 07 2012
33. M YYY Y Licence No cccceeeeeeeeeeeee eres INSTALLATION CHECKLIST Solar collectors face as close to north as possible YES NO Solar collectors are not significantly shaded between 9 am and 3 pm YES NO Solar collectors are not likely to be struck by falling objects such as branches or other nearby objects YES NO Solar collectors are installed at an angle of between 20 80 preferably at latitude angle or higher YES NO In areas prone to large hail above 35mm collector is installed at an angle of 45 or greater YES NO Frame is secured to structurally sound roof wall YES NO No leaks are observed in plumbing YES NO Plumbing pipe runs are well insulated YES NO Exterior insulation is protected against sunlight with foil wrap or equivalent YES NO Heating Heat exchange circuit and lines to heater and tempering valve are all 15mm copper no plastic YES NO olives used Functional checks for controller and pump have been completed YES NO Pressure relief Pressure Temperature Relief and Expansion Control valves must have dedicated drain YES NO pipes which will discharge only into high temperature resistant drains and will not pose any dangers Pump controller and all electrical connections are protected from water ingress YES NO Vacuum tubes are clean or have been cleaned YES NO The basic operation of the collector has been explained to the end user YES NO Water quality has been checked YES NO A copy of
34. ON REPORT amp WARRANTY FORM Customer s Copy CUSTOMER INSTALLER DD MM YYYY Licence No ccceeeeeeeeeeeee ees INSTALLATION CHECKLIST Solar collectors face as close to north as possible YES NO Solar collectors are not significantly shaded between 9 am and 3 pm YES NO Solar collectors are not likely to be struck by falling objects such as branches or other nearby objects YES NO Solar collectors are installed at an angle of between 20 80 preferably at latitude angle or higher YES NO In areas prone to large hail above 35mm collector is installed at an angle of 45 or greater YES NO Frame is secured to structurally sound roof wall YES NO No leaks are observed in plumbing YES NO Plumbing pipe runs are well insulated YES NO Exterior insulation is protected against sunlight with foil wrap or equivalent YES NO Heating Heat exchange circuit and lines to heater and tempering valve are all 15mm copper no plastic YES NO olives used Functional checks for controller and pump have been completed YES NO Pressure relief Pressure Temperature Relief and Expansion Control valves must have dedicated drain YES NO pipes which will discharge only into high temperature resistant drains and will not pose any dangers Pump controller and all electrical connections are protected from water ingress YES NO Vacuum tubes are clean or have been cleaned YES NO The basic operation of the collector has been explained to
35. RSD B only Wilo Star Z 15 For residential system design B RSD B with an auxiliary pump i e Wilo Star Z 15 the water in the upper section of the tank is circulated through the gas heater to the residential water inlet in a separate loop As hot water rises and cold water sinks the water being circulated in this loop from the upper tank is the warmer water resulting from the stratification effect in the tank Instead of heating all the water in the storage tank starting from the cold water at the bottom this pump circulates the usually warmer layer of water in the upper tank This is a more efficient arrangement as it minimises both the amount of boosting required and the heating time When installing make sure the pump is in the right position as shown in Figure 25 below The arrow on the back of the housing indicates the direction of flow Figure 25 3 7 4 1 Electrical connection guidelines 1 Install a cable with at 5 8 mm outside diameter with from the solar controller i e H1 and ground terminals Open the connection box Guide the connecting cable through the cable entry and strip approximately 5 mm Secure the cores with the cable clips L phase N neutral earth line See Figure 26 below Tighten the cable connection firmly Qy Ur pe po 9 Close the connection box Figure 26 Choose Solar O 2012 CS IUM 001 07 2012 Page 36 of 55 Choose Solar Solar Water Heater Installation and User s Manual Please re
36. S NZS 3500 3 7 2 Storage Tank Installation The hot water storage tank should be located as close as possible to where most hot water is used with safety in mind This avoids long pipe runs between the tank and water outlets which contribute to heat loss as well as water wastage due to the hot water lag Please refer to Section 3 3 System Design for the corresponding plumbing connections for the system you are installing Figure 19 shows the different parts of the storage tank The orientation of the tank should also consider future maintenance requirements such as accessibility to cold water inlet piping devices PTR valve tempering valves where fitted elements thermostats sacrificial anode and insulation Please note that your Choose Solar storage tank s has protection against electrical shock Class and ingress protection rating IP34 Choose Solar strongly recommends installing storage tank on ground level and in the upright position so that it can be accessible without climbing The pressure temperature relief valve lever should be easily accessible and the product label visible Choose Solar O 2012 CS IUM 001 07 2012 Page 31 of 55 TM Choose Solar Solar Water Heater Installation and User s Manual In accordance to AS NZS 60335 the minimum space to be provided for internal indoor installation is 600 mm x 600 mm WARNING The installation must comply with the requirements of AS NZS 3500 4 and all relevant Austral
37. SAV OT LHAV PI AJLA O4JUOD UOIsUedx A DAV N009 STADI ET 132113 M MOq 3 4936M 10H DAV zI 131114 M 991 Agut DAV TT 241005 9 jeA 011109 OQUO AYd IYN DAN OSI AddluN OT A A a a a AH Aa ajo A Aa Aa AH aj 3X4 AEA 9340 ENG uz DAN JOZ 0ZANZ 6 2 08 9 JeA Su dw L DAV dHOSIVAL a SALA J9l 9d snjgejeduia 9JnssoJd DAV 00 STHLd 1315008 ses snoeuejuejsu yasog a I MO JYSIH Ue 9381015 9315 ssajule1g 4237007 XXX 1 S2 duingd OI uowog 9 STSY Je1s de sse1g Y 19pe9H p oJ rue T M pul 40329 02 Je oS XX 95 S9 A aja sl eil ei uondioseq m r exye1ul 9 1 moyysiy Hosog B c 0009 000 v asu y u8isaq Wayshs enuepisay Je os asooy Page 16 of 55 CS IUM 001 07 2012 Choose Solar 2012 Solar Water Heater Installation and User s Manual Mc Choose Solar B Not yet available ign B RSD ial System Des sileileil eil als Alas ss SAINI DO SAIN SA A AN AA eil CN ident 3 3 4 2 Choose Solar Res OTOZ O 4e oS 35004 IE S 9950907 Ayiqejrene Sy Suipje8a Jejos 2500Yy YM Dau aseald e gejieAe puaJino jou s g dsy UBIsap WaysAs sy 9 0U 3SB3 d Ajddns 1938m 30H Q B OTOCZO T00 2d 8 dSH SD Ajddn
38. Solar plumbing kit During cold and cloudy conditions the solar water heater may not be able to generate enough heat to provide the amount of hot water up to the temperature required by regulation This is when a gas booster starts to play its role Although temperatures below 50 C could already be adequate for showers it is an Australian Standard requirement that the hot water in the storage tank be heated up to a minimum of 70 C for at least 1 second e g system with instantaneous gas booster or a minimum of 60 C at least once every 24 hours e g system which supplies hot water directly from storage tank before consumer use This is to eliminate the Legionella bacteria that may be present in the water Hence the booster must always be switched ON to make sure that this does happen 2 3 1 Water Boiling Temperature If a pressure valve i e PTR valve is activated to release excess pressure the figures below are the potential temperatures of the water or steam that may be discharged Pressure kPa Boiling Point C 101 100 203 120 304 133 405 143 507 151 608 158 709 164 811 170 WARNING Hot water and pressurised steam can burn and cause severe scalding Care should be taken to avoid contact with any pipe or fixtures associated with the heat collector flow and return lines Occupational Health and Safety Regulations must always be adhered to 2 3 2 Steam in Water Heating System If
39. T seqni uinnoeA uowog El uonduoseq Aeddns a asy duung ueiixny UU g U3SIsag uie1s s enuapisay Jejos aSO0OU7 Page 17 of 55 CS IUM 001 07 2012 Choose Solar 2012 Solar Water Heater Installation and User s Manual M Choose Solar ing C Electric Boost ign C RSD ial System Des ident Choose Solar Res 3 4 3 3 yum TTOZ OTOZ O JeJos 25004 JE 990917 SJO3e nsu pesiwojsnd Uy Buliquinjd ejos 2soou ajajdwos e se pepi oJd ase DAY Aq paljddns siuauodwo sjuauodwod jenjoe se awes ay j19exa aq jou Aew pue aping e se aAJ8s juO squauoduJoo jo sadeys au azis jene ay 0 aanejal onejJ 5uyi2eds ye UmeJp JOU aJe oneuayos siy ui sSuiweJp au ulgi1s s au jo uoneJedo 1284402 pue ajes ay se jam se oi pasaype ae sauljaping pue suone n8a4 spiepuejs jue 9 a4 eunsue jsnuj je ejsu au paquosaid se s JUaUOdWOD 40 u8Isap ay Jaye JOU 3snuu Ja e3sul eu paroidde ZTZZ SZN SV s UBisap Luajs s siu 9 0U 3SB3 d Ajddns 19318m 10H 4 p 2TOZ LO E0 L00 2d 2 dSu SD e 4 01 83 emp paund je1souusu uoulo5 juavwa 3 SurneaH uoulo5 uoun duio Y X 4 T DAN apouy ag
40. The horizontal braces supplied should be used to ensure that the front tracks of the frames are parallel and level Please make sure that the front tracks are aligned before installing the manifold 3 6 5 Manifold Installation The aluminium alloy manifold shall be fastened onto the nut press plate on the front pillar using M6 bolts See Figure 18 below for guidance Temperature port Manifold Nut press plate M6 x 16 bolt Front pillar M16x16 j Manifold y bolt 26 ba y _ Pressure i SS late p E y M16 x 16 bolt y Pressure plate Front pillar Horizontal view Figure 18 3 7 Plumbing Connection When the frame is firmly mounted to the roof and the manifold is installed the plumbing system is ready to be connected WARNING It is the responsibility of the installer to ensure that acceptable piping materials are used and the insulation requirements for pipes between the collector and storage tank are met WARNING Copper tubes used for plumbing gas fitting and drainage applications must meet the requirements of AS 1432 WARNING Only new detachable hose sets if available or requested supplied with the system are to be used Any old hose sets should not be reused Choose Solar O 2012 CS IUM 001 07 2012 Page 30 of 55 Choose Solar Solar Water Heater Installation and User s Manual WARNING Vacuum tubes should only be installed after the pipes are connected to the storage tank and the system flooded
41. again once the vacuum tubes are installed 3 12 Vacuum Tube Installation The vacuum tubes and heat pipes should only be installed when the plumbing is completed heat exchange circuit and the storage tank are filled with water and when the circulation pump and system controller are operational The vacuum tubes with the heat pipes should not have been exposed to sunlight prior to their installation The following are instructions for the installation 1 Always start by coating the tip of the heat pipe with a thin layer of the thermal paste and lubricate the top outer surface of the vacuum tube with a small amount of silicon spray to allow it to slip through the manifold rubber ring seal Choose Solar O 2012 CS IUM 001 07 2012 Page 45 of 55 TM Choose Solar Solar Water Heater Installation and User s Manual NOTE Applying the thermal paste ensures that both the heat pipe and header port will be in close contact to ensure good heat transfer 2 Hold firmly at about mid length and guide the heat pipe tip pass the rubber seal and into the manifold port A bit of force needs to be exerted upward with slight left and right twisting action The heat pipe and vacuum tube are fully inserted once the black coating of the vacuum tube has disappeared up into the manifold and the bottom of the tube sits correctly in the bottom locking cap 3 Follow the following instructions for securing the SHCMV tubes Maintain the position of the vacuum
42. e Adaptor C S A Vac Force 2000 and Pipe Vac 2000 These Drillmate proprietary standards are internationally known for drilling and are used in many sectors such as plumbing aerospace truck and petrochemical industries In 2008 a sustainable branch Choose Solar was established with the future generation in mind Through Choose Solar Drillmate has employed its experience and technologies in developing manufacturing and supplying sustainable energy products Since establishment Choose Solar has been supplying these products at competitive prices to big and small companies as well as individual installers Choose Solar strongly believes that everyone can make a difference and will continue to produce quality products that will deliver financial and environmental benefits Our Commitment Choose Solar is committed to provide the highest quality solar energy systems for both the generation of electricity and water heating All components of the solar energy systems provided by Choose Solar have been subject to rigorous testing and conform to Australian Standards for safe operation deeming of Environmental Certificates and receiving applicable government support Choose Solar O 2012 CS IUM 001 07 2012 Page 3 of 55 Choose Solar Solar Water Heater Installation and User s Manual Glossary Air eliminator Authorised Person s Booster Closed Loop Pressurised System Flow line Header Heat Pipe Insolation Manifold Pressur
43. e Temperature Relief PTR valve Return line Solar Collector Standard Vacuum tubes Super Heat Conduction Metal Vacuum SHCMV tubes Thermal Stratification Water Uninterrupted Power Supply UPS Choose Solar O 2012 A vent positioned at the highest point on the system which automatically releases trapped air to ensure that the sealed system remains air free Qualified tradespersons who hold relevant industry licenses or certificates required for completing the solar water heater installation and or related work A complementary device for maintaining the water at an intended temperature A solar heating system loop that is closed separated from the water source filled with a heat transfer fluid and pressurised The plumbing line running from the tank to the inlet of the collector The copper heat exchanger pipe in the solar collector through which the heat exchanger fluid flows A high grade copper pipe that is inserted into the standard vacuum tube which allows rapid heat transfer Solar radiation level expressed in kWh m2 day The unit with houses the header into which the vacuum tubes are connected Also see Header A valve for relieving pressure and excessive temperatures The plumbing line running from the outlet of the collector back to the tank The solar energy collecting unit which includes vacuum tubes manifold and frame that is mounted on the roof Evacuated glass tubes which insulate the
44. ected during this period Minor shading caused by TV antennas is not an issue 3 6 1 4 Storage Tank Location The solar collectors should be placed as close to the hot water storage tank as possible and the tank should be located as close as possible to where most hot water is used This avoids long pipe runs between the collectors and tank to reduce heat loss and water wastage due to the hot water lag For more information see Section 3 7 2 Storage Tank Installation WARNING Do not install the vacuum tubes until the water heating system is ready to operate with the storage tank filled with water and the closed loop portion has been properly tested for leaks and pump and controller operation WARNING Do not install the vacuum tubes upside down or lying horizontally which will cause the heat pipes to not function correctly 3 6 2 Frame Installation Installations on roofs or surfaces that have sufficient slope for collector to be adequately exposed to the sun See Table 2 Recommended Collector Angles may use the sloping roof configuration Choose Solar 2012 CS IUM 001 07 2012 Page 23 of 55 Choose Solar solar Water Heater Installation and User s Manual However installations on majority of roofs around Australia are anticipated to use the complete tilt frame which is the flat roof type installation in order to harness the optimum amount of solar energy 3 6 2 1 Sloping Roof When installing the solar collector brack
45. em is sold repaired or altered by any third party without the written consent of Choose Solar 3 Claims for damage to walls foundations outside furnishings inside roofs or other losses directly or indirectly due to leakage from the water heater 4 Where the system has been drained for a period without the solar tube collector being covered resulting in damage to the collector 5 Accidental breakage and acts of God are not covered by this warranty and should be added to your general household insurance policy Choose Solar O 2012 CS IUM 001 07 2012 Page 53 of 55 Choose Solar Solar Water Heater Installation and User s Manual 6 Where water levels outlined in the water quality requirements are exceeded or from the use of bore water highly mineralized water or such as described in Section 2 4 Water Quality Sludge deposits are also excluded from Choose Solar s warranty 7 Incorrect installation or misuse is not covered by Choose Solar This includes the attachment to the roof of the collector and the support of the storage tank 8 Breakage or damage of components especially heat tubes during transport and or installation is excluded from warranty by Choose Solar The benefits conferred by this warranty are in addition to all other rights and remedies in respect of the product which the purchaser has under the Trade Practices Act Commonwealth 1975 and similar State or Territory laws 7 2 Warranty Coverage Manufacturin
46. emely freezing conditions Even under 50 C the average heat efficiency of 5096 can still be achieved It can output usable heat within 2 minutes and the temperature of the cooling end can reach up to 250 C They also have greater hail resistance than standard vacuum tubes they can resist hail up to 35mm in diameter and above when the collector frame is tilted Choose Solar O 2012 CS IUM 001 07 2012 Page 6 of 55 Choose Solar Solar Water Heater Installation and User s Manual SHCMV tubes have high corrosion resistance because they are fully sealed Through heat pipe conduction no water runs inside the tube so water contamination problems tube blockage and low power output caused by water fouling deposits dust and sand are avoided altogether The solar absorber plate installed and sealed inside the tube of high quality borosilicate glass is vacuum packed so it does not corrode even in damp areas These products are certified products of the Australian New Zealand Standard 2712 and approved by T V Rheinland under the EN12975 Standard They have also adopted the Chinese National Standard of Q 321282 YZD08 2001 for residential water heating systems while the quality control of manufacturing is certified by 1S09001 2000 1 2 3 Vacuum Tube Collectors Vacuum tube collectors offer many advantages over other types of solar collectors These include e Jtasier Installation Vacuum tube collector panels can be quickly and easily installed
47. eous inline gas booster Therefore the requirement below prescribed by Australian Standard 3498 will apply The water heater is a storage solar water heater with an instantaneous inline booster where the booster heats the water to a minimum of 70 C before passing through the booster s heated water outlet if the water from the solar water heater is less than 55 C This requirement MUST be adhered to when installing and configuring the water heating system Having an instantaneous gas booster ensures that continuous hot water is supplied even on days when the solar energy collected is inadequate for meeting the hot water consumption levels The gas booster also plays an integral role in the anti freezing function controlled by the system controller and is particularly important to safeguard against Legionnaires disease It is therefore important to note that the gas booster must be switched ON at all times including summer months 1 4 Electric Boosting Where natural gas or Liquefied Petroleum LP gas is not readily available Choose Solar supplies an electric storage water heater as a complementary heating device The Choose Solar electric boosted system utilises electric element to boost the water temperature as required The electric element is controlled by the system controller which switches it on at set times Similarly the electric boosted solar water heating system also has the function of inhibiting the growth of legionella It c
48. er s Manual Front pillar D Front pillar m Front bar Lower Choose Solar angle mounts Lower bar 3 The reflector plates shall be clipped into the upper and lower front bars and mounted onto the reflector bar with M6 x 10 bolts See Table 3 Frame installation illustrations above for guidance NOTE Holes may need to be drilled into the reflector bar to secure reflector onto it with provided bolts Alternately rivets may be used Choose Solar O 2012 CS IUM 001 07 2012 Page 27 of 55 Choose Solar Solar Water Heater Installation and User s Manual 3 6 3 Roof Attachment When attaching frame to the roof wind loading must be considered as it may create excessive stress at the attachment points It is the responsibility of the installer to determine that the roof i e flat tiled corrugated etc which the frame is mounted on is of suitable strength and structure See Section 2 7 Wind Loading for more information For the purpose of attaching the solar collector frames onto the roof Choose Solar recommends using the Choose Solar 10mm stainless steel mounting bolt which is customised for this very purpose When correctly installed each of these bolt made from solid stainless steel can withstand over one tonne of vertical force and resist winds up to 180 km per hour Their performance has already been proven through the mounting of solar photovoltaic panels which are heavier than the solar hot water c
49. et shown in Figure 9 below the lower bar shall be connected by the M6 x 16 bolt to two front pillars and tightened by M6 nut from behind This procedure is followed by the installation of manifold on the top end of the front pillars Manifold mE TEUER Nut press E plate Nut press plate Front pillar Front pillar SHCMV tube Lower bar T bec n Lower bar Figure 9 3 6 2 2 Flat Roof The installation instructions of flat type tilt frame are provided below A fully assembled frame complete with reflectors is shown in Figure 10 below Front pillar Rear pillar mr Rear bar Upper Front bar Upper Rear supporting bar Reflector bar Fixing foot Front bar Lower Choose Solar angle mount eerie ns o Lower bar Figure 10 Choose Solar 2012 CS IUM 001 07 2012 Page 24 of 55 Choose Solar solar Water Heater Installation and User s Manual 1 Assemble front pillar rear pillar and side bar into a side frame and fasten them with bolt and nut then mount fixing foot or Choose Solar angle mount on front pillar and back pillar An assembled side frame is shown in Figure 11 below Front pillar Rear pillar Side bar Fixing foot Choose Solar angle mount Fixing foot Choose II Y Solar angle Y mount Figure 11 NOTE The front pillars rear pillars angular connec
50. f copper or stainless steel to reinforce the contact 5 Insulators and silicon sealant can be used to prevent water entering the contact area protect the sensor and maintain accurate and consistent temperature readings WARNING Do not run the sensor cables underneath the pipe insulation alongside the copper pipe particularly when the extended cable is not resistant to high temperatures Run along the pipe outside its insulation and secure the cables with UV resistant cable fasteners at every 15 20cm It is recommended that the sensor cables be insulated as well Table 9 Output Ports Maximum Output Switching Type Description Current P1 P2 5A Electromagnetic relay For circulation pump s H1 16A Electromagnetic relay For electrical heating or auxiliary pump R1 5A Electromagnetic valve For high temperature protection function Please refer to the electrical circuit diagrams in the following section for the recommended connections from the system controller terminals to the solar water heating system Not all ports in the system controller will be used and please note that every port can only connect to a single cable NOTE In Design B H1 is connected to the auxiliary pump because the pump performs a heating function It does so by circulating the hot water from the instantaneous gas booster output which is at 70 C back into the upper part of the storage tank to heat that portion of water up to 60 C See Sect
51. f corrugated steel roof unless it is the Kliplok roof flat valley type and the ridge is not high enough to come into contact with the frame See Figure 14 and Figure 15 2 The supplied Choose Solar mounting bolts are made from stainless steel and any contact with the roof material should be avoided to prevent potential galvanic corrosion See Section 2 5 1 Galvanic Corrosion for more information 3 In order to also avoid any contact of bolt and the roof drill a larger hole diameter 10mm The washer provided with the bolt should still be left in place to separate bolt from the frame Choose Solar 2012 CS IUM 001 07 2012 Page 28 of 55 Choose Solar Solar Water Heater Installation and User s Manual Choose Solar 200mm Mounting Screw Illustration Scenario Corrugated roof CS MS 200 Silicone sealant required around these contacts Choose Solar Rail Mounting Bracket CS003 Choose Solar Spacer Block Corrugated Roof CS SB 001 Choose Solar 200mm Mounting Screw Illustration Scenario Kliplok roof Flat Valley type CS MS 200 Silicone sealant required around Choose Solar Rail Mounting Bracket CS003 Choose Solar 50mm Spacer Block these contacts CS SB 002 L H i ifi An H Corrugated P HIF Silicone sealant required Roof Silicone sealant Flat valley Dod all around base z required all around l
52. fer to the product manufacturer s manual provided for full installation operation and maintenance instructions WARNING Only an authorised person such as a licensed electrician can carry out electrical work 3 8 Gas Booster Installation Choose Solar supplies the Bosch Highflow gas heater as the instantaneous gas heater in its gas boosted systems e g RSD A Series Refer to system diagrams in Section 3 3 System Design for the plumbing and gas connection details The heater must be installed firmly vertical to the floor without any inclination The wall of which the gas heater is installed on must be able to bear a weight of the gas unit and fire resistant if possible or otherwise heat insulated A 50cm minimum distance is required around the four sides of the gas heater and no electrical wiring or appliances should be present above the unit The orientation of the gas heater should also take account of future maintenance requirements WARNING Do NOT connect gas heater flue exhaust to any public flue system which is intended for dispensing cooking smoke Refer to the manufacturer s installation and operation manual provided for complete installation instructions and other relevant information e g safety reminders troubleshooting etc An illustration of the different parts of the gas heater is shown in Figure 27 WARNING The factory default operating temperature of the gas heater is set at 70 C and should not be altered as this is a
53. g fault of parts and or workmanship will be replaced if components are found faulty or have failed without any cost to the customer within metropolitan areas within the Labour and Parts warranty period After which only replacement products will be provided to the customer up to the expiry of the Parts Only warranty period where additional costs incurred will be charged to the customer Component Labour and Parts Parts Only Collector Tubes One year Ten years Collector Header Manifold One year Fifteen years Circulation Pump One year Five years System Controller One year Five years Bosch Gas Heater One year One year Gomon Gas Heater One year One year Stainless Steel Tank One year Ten years Choose Solar Mounting Frame One year Fifteen years Please note that there may be a separate fee e g transport insurance etc chargeable to the customer for installations outside the boundaries of capital city metropolitan areas 8 Disclaimer Choose Solar Drillmate Pty Ltd withholds the right to change dimensions and the characteristics of its products without any forewarning and rejects any kind of responsibility for misprints This installation and user s manual is only a guide and as such Choose Solar Pty Ltd and or Drillmate Pty Ltd will not be held responsible for any damage to person or property that results during the installation or subsequent use of this solar collector and related system components Information contained in this manua
54. i EEN 50 AA 3 Other COMPONENTS e n rris pe tete aere nn cia arre 50 CECI ADereji er ce Rt 51 6 Safety RemiINderS nere eee oce esce poe eee ee Ee ee 52 VAS E CELINE TTE 53 7 14 Warranty ele CN 53 7 2 Warranty COVerage uomo se ce s A A AAA 54 8 Disclaimer A NA 54 8 3 Scope ofMati al reete erede n nr pe shaves sre deni p UPON o s rete coda covers 55 Choose Solar O 2012 CS IUM 001 07 2012 Page 2 of 55 Choose Solar Solar Water Heater Installation and User s Manual About us Choose Solar is a subsidiary of Drillmate Pty Ltd which is focused at supplying high quality designed and manufactured renewable energy technologies at competitive prices Drillmate Pty Ltd was founded in 1989 by Noel Rankin and has since then produced a series of world class products Drillmate products implement the latest cutting technology to improve the efficiency of cavity production in a wide variety of materials Over the years Drillmate Pty Ltd has been awarded for its innovative design inventions and company operation on multiple occasions In 1989 Drillmate Pty Ltd received the Australian Design Award and in 1990 the Occupational Health and Safety Award Other accolades include Best Invention Award Long Beach California U S A August 1992 and Highly Commended Product Award Australia s International Engineering Exhibition Melbourne 1997 Some of the notable innovations of Drillmate include Portable Drill Press Vac Pad Curved Surfac
55. ian Standards and industry codes The storage tank must have proper support to make sure its position is firm and secure It should be installed on a level stable and impervious base supported by the brackets supplied by the manufacturer and installed in accordance with the manufacturer s instructions A properly drained safe tray under storage tank needs to be in place where any overflow or leakage may cause damage Construction installation and draining of a safe tray must comply with AS NZS 3500 4 It is recommended to not place combustible material on or adjacent to the water heater WARNING The storage tanks can be very heavy when operational i e filled with water so the location of a tank installation must have the structural ability to support it Hot water outlet Exhaust pipe os Thermostat 2 ST13 Pip E Over temperature protection PTR Valve j Anode Thermostat 1 ST12 Return line Element HE Temperature from header uh E Port Temperature L Port T2 Flow line to header w Cold water inlet Drain outlet Base support Solar return ports and heat exchange coil are available for units coupled with solar water heating Element s and thermostat s are available for electric storage water heater units Figure 19 3 7 3 Circulation Pump Installation Wilo RS 15 6 The Wilo circulation pump provided is hot water rated and required
56. ion 3 7 4 Auxiliary Pump Installation For RSD B only for more information about thermal stratification in water Choose Solar O 2012 CS IUM 001 07 2012 Page 41 of 55 TM Choose Solar Solar Water Heater Installation and User s Manual 3 10 3 Circuit Diagrams 3 10 3 1 Choose Solar Residential System Design A RSD A imo Choose Solar System Controller Electrical Circuit RSD A Choose Selar oose solar T1 PartNo Supplier Description RS15 6 Gomon Wilo Pump Assembly Star z 15 Wilo Circulating Pump H1 P1 T1 T2T3 CS RSD A EC 001 07 2010 3 10 3 2 Choose Solar Residential System Design B RSD B Check with Choose Solar regarding RSD B s circuit diagram Choose Solar O 2012 CS IUM 001 07 2012 Page 42 of 55 TM Choose Solar Solar Water Heater Installation and User s Manual 3 10 3 3 Choose Solar Residential System Design C RSD C dk Choose Solar System Controller Electrical Circuit RSD C Choose Selar oose solar PartNo Supplier Description RS15 6 Gomon Wilo Pump Assembly Star Z 15 Wilo Circulating Pump Thermostat 2 Over temperature protection Controller Display SR868C8 Controller 240V Mains supply Thermostat 1 ANE H1 P1 T1 T2T3 Contactor CS RSD C EC 001 01 04 2012 3 10 4 Programming System Controller When the controller is started up the time and week need
57. ised person s 2 2 Water Pressure The water heater is designed to operate at mains pressure by connecting directly to the mains water supply The supply pressure should be greater than 350kPa for true mains pressure operation to be achieved A minimum water supply pressure of 200kPa is required for effective performance It is necessary to take note of the devices required to make sure the water pressure is controlled for optimal performance 2 2 1 Pressure Limiting Valve As the cold water mains pressure supply can often exceed or fluctuate beyond the pressure of 750kPa a pressure limiting device set at 500kPa must be fitted to the cold water supply line The Choose Solar plumbing kit includes a Pressure Limiting Valve for this purpose Failure to install a pressure limiting device at the cold water mains will void the warranty 2 2 2 Expansion Control Valve In South Australia Western Australia and some other areas subject to local authority regulations it is a requirement that an expansion control valve or a pressure relief valve be fitted on the cold water supply to the water heater Drain lines from relief valves are not permitted to be joined so a separate drain line must be provided for this valve As a precautionary measure Choose Solar encourages you to install an expansion control valve and set it at 600kPa even if your state or area does not mandate you to do so An expansion control valve is supplied in the Choose Solar pl
58. kits please see Section 2 Important Information NOTE The plumbing kit for Choose Solar water heater installation also comes with customised insulators to ensure that heat loss through these valves and fittings is reduced to a minimum This unique feature increases overall efficiency of the solar water heating system as heat loss is significantly reduced Please note that insulating the pipes is the responsibility of the installer See Section 3 7 1 Insulation for insulation requirements 3 5 Transportation Unpacking and Inspection When transporting the boxes of vacuum tubes stand the boxes upright wherever possible taking notice of the orientation arrow on the box If it is not possible to carry them vertically then only lay them on a flat firm surface such as a compressed wooden board If stacking the boxes do not exceed 3 layers and ensure they are securely tied down to prevent movement The edges of the boxes should be protected from the straps cutting into the boxes 3 5 1 Tube Inspection 1 Open the tube boxes which contain the vacuum tubes with heat pipes inserted Make sure the vacuum tubes are all intact and the bottom of each tube is still silver If a tube has a white or clear bottom it is damaged and should be replaced 2 Do not remove and or expose the tubes to sunlight until ready to install as the heat pipe tip can become very hot very quickly WARNING e Never touch heat pipe after exposure to sunlight Wear thick
59. l is correct at the time of its printing It is subject to updates and changes at the discretion of Choose Solar Choose Solar O 2012 CS IUM 001 07 2012 Page 54 of 55 Choose Solar Solar Water Heater Installation and User s Manual 8 1 Scope of Manual This manual provides important information about the safe installation and operation of the Choose Solar water heating systems However this manual is not intended to be a complete reference for the installation and safety procedure of installing and operating the water heating system The detailed instructions for the installation operation and maintenance of the complete solar water heating equipment including but not limited to storage tank gas booster circulation pump system controller valves and other plumbing components are provided separately in their respective manufacturers product manuals and must also be followed Only authorised person s with proper training are allowed to carry out the installation and or related work The Choose Solar water heating system designs in Section 3 3 System Design which are AS NZS2712 2007 approved system designs should not be altered Any deviation from these system designs may not be eligible for government or state rebates in Australia Any customised system designs should be validated by a qualified engineer and inspected and approved before commissioning Choose Solar O 2012 CS IUM 001 07 2012 Page 55 of 55 Choose Selar INSTALLATI
60. n the inlet and outlet pipes are connected to the plumbing system The collector loop must be filled with water and air purged prior to the vacuum tubes being installed 1 Open the cold water supply valve to fill the tank gently operate the PTR valve release lever to expel air Close this valve once steady water is expelled 2 Theclosed loop circuit of the solar heating circuit has an automatic air eliminator valve fitted to the manifold header which will expel the air from this circuit The pump should be run at its highest speed to assist the expulsion of air 3 After the unit has been commissioned the drain valve handle should be removed to prevent tampering or inadvertent draining of the system 4 Readjust the speed of circulation pump to provide the appropriate flow rate for the system 5 Only after the plumbing has been confirmed as leak free for both circuits and the hot water storage tank is filled should the heat tubes be installed NOTE The circulation pump can be turned ON manually using the system controller Refer to the manufacturer s manual for instructions 3 11 2 Gas Booster Gas supply and power to the gas booster may now be turned ON after the storage tank is filled with water and the heater connections have been checked for any leaks 3 11 3 System Controller Ensure that the correct system controller settings are set for the system design chosen and the controller is fully operational Check controller operation
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62. nstaller of the system or another suitably qualified person must be contacted to carry out the task e Leaves During autumn leaves may collect under or between the collector tubes These should be removed to ensure efficient operation of your solar system The same warning above applies WARNING The end user must NOT climb onto roof or other dangerous location to perform any of these tasks All health and safety regulations must be adhered to e Broken tubes If a severe storm occurs or a tree branch falls on the solar collectors it is possible for tubes to be broken The collector tubes are made out of glass so care must be taken to clean up any glass that may have fallen from the roof to prevent injury The end user should immediately contact an authorised person to clean the broken glass on the roof and the damaged collector tube s replaced This will ensure that the safe and efficient operation of your system is maintained Choose Solar O 2012 CS IUM 001 07 2012 Page 48 of 55 Choose Solar Solar Water Heater Installation and User s Manual Installer guidelines for broken tubes 1 Ifa tube is broken it should be replaced as soon as possible to maintain maximum collector performance 2 The system will still operate normally and safely even with a tube broken but at reduced performance 3 Any broken glass should be cleared away to prevent injury WARNING Always wear safety gloves and glasses when handling vacuum tubes and heat pipes
63. nt is made at the terminal location points under the weatherproof element covers Choose Solar electric water heaters are supplied with thermostats with manually re settable over temperature thermal safety cut outs The electric water heaters must operate with these devices being in place Replacement should only be undertaken by an authorised person The thermostat model numbers are noted in the wiring diagrams WARNING The operation of the over temperature safety cut out indicates a possibly dangerous situation Do not reset the thermal cut out until the water heater has been serviced by a qualified person 3 9 0 1 Electric Storage Water Heater Thermostat Setting The thermostat is normally factory set to 60 C It should not be adjusted below this temperature In order to adjust the temperature setting i e thermostats ST12 and ST13 1 Disconnect the electrical power supply to the tank 2 Remove the element cover 3 Using a small flathead screw driver rotate the thermostat to the appropriate temperature as indicated in Table 5 below Table 5 Thermostat s Settings Thermostat Model Temperature Setting Thermal Cut out For Solar Applications Top Thermostat Thermostat 2 ST13 70 70 Auto reset Bottom Thermostat Thermostat 1 ST12 60 90 For Non Solar Applications i e Standalone Water Heating Top Thermostat Thermostat 2 ST13 70 70 Auto reset Bottom Thermostat Thermostat 1 ST12 60 90
64. nufacturing fault or defect This warranty only applies to the solar system gas water heater product and does not apply to any additional electrical and or plumbing parts supplied by the installer or components of an existing installation Please refer to the documentation provided with those products for their respective complete warranty details The installer of the Choose Solar solar water heating system MUST provide the owner of the solar water heater will 2 copies of the completed installation and warranty record form In order to register the system for warranty purposes the owner must send the original form to Fax 03 9720 7582 Post to Choose Solar Pty Ltd 17 Gatwick Road Bayswater North Vic 3153 Email info drillmate com au Choose Solar are at no obligation to return parts replaced at its option pursuant to this warranty For installations outside of the boundaries of the capital city metropolitan areas the cost of transport insurance and travelling will be charged to the owner 7 1 Warranty Exclusions Warranty will be null and void and charges may be incurred including a service and parts charge if any of the following exclusions exist 1 Where service is required to rectify problems with abnormal water supply e g high water pressure negative pressure excessive temperature corrosive atmosphere faulty gas fitting plumbing and or electrical wiring or major variations in gas or electricity supplies 2 If the syst
65. nuously vents storage tank water Mains pressure is too high Check Pressure Limiting Valve in water supply line is set at 5OOkPa 7 Minimal solar Vacuum tubes not installed Make sure thermal paste is applied liberally water heating correctly to the tip of the vacuum tubes before inserting into header Check that the tubes are fully inserted and secured Damaged tubes Check the vacuum tubes and replace as required Damaged insulation Check the condition of the insulation and replace as required Choose Solar O 2012 CS IUM 001 07 2012 Page 51 of 55 Choose Solar Solar Water Heater Installation and User s Manual 6 Safety Reminders It is very important that the water heating system is safe for operation and also that the installation is carried out in a safely manner Throughout this manual NOTE S and WARNING S are outlined Below is a brief summary of the key safety reminders 1 E obs o 00 d O 10 Installation must be completed in accordance with the requirements of AS NZS 3500 AS5601 AG601 and any other relevant standards and regulations Installation must be completed or inspected by an authorised person The authorised person s is responsible for his her their own safety at all times Ensure the roof construction allows for fitment of solar collectors Installers must adhere to all the requirements of Occupational Health amp Safety and other relevant regulation
66. ollectors These bolts are also suitable for mounting into a large range of materials including timber and steel purlins The following are guidelines for attaching the solar collector frames to common roof types in Australian conditions for both cyclonic and non cyclonic regions 1 For flush mounting one Choose Solar 10mm Stainless Steel bolt must be used per attachment point NOTE There are altogether five attachment points three on front track and two behind NOTE Choose Solar mounting bolts are available in two lengths i e 200mm and 280mm to suit different attachment requirements Choose Solar spacer blocks are suitable to be used with flat and corrugated roofs for safe and secure mounts 2 Always ensure the roof attachment points are strong enough obtaining engineering approvals and relevant building permits as required Refer to the illustrations in Figure 14 to Figure 17 Tiled roof mount for additional assistance in attaching the Choose Solar bolts and spacer blocks 3 6 3 1 Corrugated Roof 1 When installing on corrugated steel roof use rubber pads to separate the frame from coming into contact with the roof and also to seal the hole from allowing water to enter Use outdoor grade silicon sealant around the pads to ensure that any cavity is completely sealed A small amount of silicon may also be put on the thread of the bolt to seal any gap between the bolt and the hole in the pad NOTE Do not install in the valley o
67. omplies with the requirement in Australian Standard 3498 which states For a storage water heater heat pump water heater or solar water heater at least 9096 of the stored water is heated to 60 C for at least one single period of not less than 32 min in each 7 day period The electric booster complements the solar water heating in providing continuous hot water supply anti freeze capability and also safeguard against the legionnaires disease It is therefore important to note that the electric booster must be switched ON at all times including summer months Choose Solar O 2012 CS IUM 001 07 2012 Page 8 of 55 Choose Solar Solar Water Heater Installation and User s Manual 2 Important Information 2 1 Standards and Regulatory Requirements All Choose Solar solar water heating systems must be installed by an authorised person All installation work must meet the requirements of AS NZS 3500 4 AS 5601 AG 601 the National Plumbing Code as well as any relevant standards and regulations This also applies to any gas related and electrical work that may be required 2 1 1 Authorised Person s An authorised person refers to a qualified tradesperson who holds relevant industry licenses or certificates required for completing the solar water heater installation and or related work Unless otherwise specified no part of the Choose Solar solar water heaters may be inspected installed repaired or maintained by anybody other than author
68. r portion of the tank to heat up the already warm water instead of heating the whole storage tank starting from the cold water at the bottom This design delivers usable hot water faster with the minimum amount of purchased energy and hence the more efficient and economical option for the second scenario Residential System Design RSD C utilises electric boosting with the pre heated storage tank by the solar collector This option is ideal for those who seek a greener alternative where gas supply is not readily available The end user must discuss the hot water usage with the retailer and installer to determine the best system and its size to be installed 3 3 2 System Sizing Correct sizing is very important to ensure optimal performance and avoid overheating The solar water heating system should be able to provide the hot water required by the consumer during summer with little or no gas boosting required In winter it should be able to provide approximately 5096 of the hot water needs This means the system should be able to provide between approximately 60 to 8096 of the annual requirements 3 3 3 Commercial Property Choose Solar s highly efficient Solar Water Heaters can suit commercial applications as well Speak to your retailer about sizing options to meet your commercial property hot water needs Choose Solar O 2012 CS IUM 001 07 2012 Page 15 of 55 Solar Water Heater Installation and User s Manual M c Choose Solar 3
69. r collector tubes to prevent overheating 4 Undo the cold water union attach a hose to the heater side of the union and direct the hose to a safe drainage location 5 Operate the PTR valve release lever to allow air into the tank to prevent a vacuum being formed 6 When all water is drained ensure that the release lever returns to the normal closed position and refasten all fittings 4 4 2 Insulation Proper insulation will minimise any heat lost through the plumbing and maintain good efficiency of the system During maintenance check for the following 1 The plumbing pipes running to and from the solar collector should be well insulated and checked once every few years 2 For any insulation exposed to sunlight ensure any protective layer is in good condition replacing as required 3 Choose solar has customised insulators for the valves and fittings as supplied with the Choose Solar plumbing kits These replacements can be obtained from Choose Solar as required 4 4 3 Other Components Other parts of the system such as the system controller circulation pump gas heater and storage tank should be inspected and or serviced according to their manufacturer s own maintenance guidelines Choose Solar O 2012 CS IUM 001 07 2012 Page 50 of 55 Choose Solar TM 5 Troubleshooting Solar Water Heater Installation and User s Manual Below is a guide to troubleshooting some of the common issues or problems which may occur with
70. r installer or an authorised person 4 4 Major Service A major service can ONLY be carried out by an authorised person and is performed every 5 to 7 years or as required The frequency of this service depends on conditions such as water quality and weather Some typical procedures that may be carried out include but not limited to the following 1 Replace the Pressure Temperature Relief PTR valve 2 Protective anode replacement 3 Check heat transfer liquids e g antifreeze Choose Solar O 2012 CS IUM 001 07 2012 Page 49 of 55 Choose Solar Solar Water Heater Installation and User s Manual 4 Go through the whole water heating system and identify potential problems e g broken tubes shading issues frame integrity etc 5 Inspect all connections e g plumbing leaks insulation damage etc NOTE It is recommended that Choose Solar be consulted regarding any replacement of components e g anodes 4 4 1 Draining the Hot Water Tank In the event of the hot water tank needing to be serviced relocated or replaced the water in it must first be drained WARNING This operation must only be done by an authorised person e g qualified plumber Beware of hot water In order to drain the hot water tank 1 Turn off the cold water supply Release the pressure in the tank by operating the Pressure Temperature Relief PTR valve release lever 3 Disconnect the heater coil circuit if not being reconnected that day cove
71. rom moisture and dripping water Cable leads should never come into contact with plumping system pump or motor casing Heat resistant cables should be used as the water temperatures can rise above 90 C The supplied current and voltage are suitable as prescribed on the rating plate If terminal box is positioned sideways the cable should always be inserted from below See Figure 24 In the horizontal position the connecting cable can be fed through the cable entry either to the left or right whichever is more suitable The blind plug and PG screwed joint can be swapped WARNING The terminal box cover must be closed properly to avoid moisture entering which could cause short circuits Figure 23 Figure 24 3 7 3 4 Operation If there is air in the pump chamber the pump will not pump water There is an automatic air eliminator in the water heating system and the pump normally vents automatically after a short operational period However if the pump needs to be vented please refer to Wilo s manual for venting instructions Also see Section 3 11 1 Filling Hot Water Storage Tank for more information about system filling and venting Choose Solar O 2012 CS IUM 001 07 2012 Page 35 of 55 Choose Solar solar Water Heater Installation and User s Manual WARNING When if loosening ventilation screw do so with extra care as hot liquid or vapour may be released at high pressure 3 7 4 Auxiliary Pump Installation For
72. s J918 plop CLA uoun O X 4 T SAV apouy uowog gneg aJnssaJg uowog Vi M PUI duing Aieijixny dund Sune n241 OIM ST Z 1815 9 A EA Dau eJnieJedua YSIH Y SAV OST AST LHAN uolun duo Y XN SAV JO3e2Ipu MO 4 uowog v M pul 241009 21 21 Laien aunssaud uowog Vi M PUI eg aal duo y SAV 3N d sseJg deg Y DAV 3NId deg SC SAV 807948 uoun duio Y XN Y SAV 8080 049 uoiu dui0 Y X y Y SAV 80800138 MOQ 3 AO Y X 4 SAV 8080ST49 uoun IN Y X dwog wwzz SAV 80INcc 038 UO JBUUOD JOH uoun uuzz DAV 2Hhiccdg JO3euluui 3 ANY DAV OT LHAV BALE 0 3005 UOISUedXx SAV N009 ST AD 12314 M MOQ 3 1378M 10H SAV 181114 M 991 Aem p SAV 241005 9AJ2A 491194 aunssaud SAV IST AYdluN SAIC A 8une os uunja4 UON DAV OST AGIYN 9 05 aajen Bun dw L DAV dHOSTVAL AACA Jaljay ainyesadwia aunssaJd SAV 002 STULd 2 04 483 8H Sed snoaue1ue1su uowog yue e8e101s 3374S SS JUILIS 22100 Ajquiassy duing OJIM uowog 9 STSY de sseJg Y DAV Japeay pjojiueyy uowog SHUN oe OZ ST O
73. s This includes safety regulations regarding working on roofs or at a height Always wear safety glasses when handling vacuum tubes Wear leather gloves when handling metal components Wear thick leather gloves if handling hot heat pipes and vacuum tubes When flushing out accumulated hydrogen after prolonged idling time of the water heating system make sure the area where this operation is carried out is well ventilated and do not ignite anything e g cigarette stove etc close by All safety reminders and relevant regulations regarding the water heating system also need to be adhered to by the end user whenever applicable Choose Solar O 2012 CS IUM 001 07 2012 Page 52 of 55 TM Choose Solar Solar Water Heater Installation and User s Manual 7 Warranty The system must be installed by a qualified person i e licensed plumber gas fitter and or electrician in accordance with all installation instructions relevant statutory and local requirements of the state or territory in which the system is installed Warranty is limited to the replacement or repair at the option of Choose Solar of any defective product and of such components that have been damaged as a consequence of the defect Choose Solar is excluded to the extent allowable by Law from responsibility for any consequential loss including 1 Personal injury 2 Economic loss 3 Property damage 4 Pain and suffering 5 Any legal or other damages flowing from any ma
74. s as long as the water quality prescribed are observed However sacrificial anodes will still be provided with the tanks as a precautionary measure to provide additional protection to the tank and the overall water heating system This will further increase the water heating system s resistance to poor quality water and prolong its life It must also be noted that when anode corrodes to protect the system small quantities of hydrogen gas will be produced This gas is usually flushed out from the tank when hot water is being used However if the hot water system is not being used for more than two weeks e g end user gone on holiday there may be a hydrogen build up which could become a safety hazard WARNING After prolonged idle time i e two weeks or more a hot tap at an open sink basin or bath NOT at a dishwasher clothes washer or other appliance should be turned ON for several minutes to allow any accumulated hydrogen gas to be discharged while ensuring adequate ventilation You may hear an unusual high pitched sound as the gas escapes If in doubt contact an authorised person or your local Choose Solar dealer WARNING Do not ignite anything e g cigarette stove etc close to where this operation is being carried out 3 Solar Water Heating System Installation for Installer 3 1 Installation Summary Choose Solar recommends following the processes in the summary below These processes are expanded in the following sections
75. sfer fluids e g food grade polypropylene glycol should be used Always refer to the product manufacturer s specification for appropriate usage of the heat transfer fluids i e fluid concentration indicator colour replacement instructions etc Health and safety regulations must be adhered to at all times Choose Solar will not be held responsible for the improper choice and use of heat transfer liquids In areas where frequent winter temperatures and or power outages are experienced the use an Uninterrupted Power Supply UPS unit is recommended to maintain the freeze protection Freeze related damages are not covered by warranty 2 7 Wind Loading Choose Solar offers a variety of quality frames which come with superior mounting systems Wind resistance and the resulting stress at attachment points need to be considered when installing the solar collectors The weight of the solar collectors themselves is quite minimal and should not produce excessive weight stress on the roof structure However the integrity of the roof must be checked and relevant building codes and or regulations need to be observed at all times Choose Solar mounting systems have been designed to withstand wind forces up to 180 kilometres per hour gale force winds These systems have been proven and readily accepted for the mounting of solar photovoltaic panels which are heavier than the vacuum tube collectors for solar water heating A range of mounting bolts for at
76. storage tank and pump loop e The pump is equipped with a speed rotary switch in the terminal box for manual 3 speed control where 3 represents the lowest speed and 1 the highest At 3 the speed is between 40 5096 less than the maximum speed and also consumes about half the power to run e The flow indicator provided as part of the pump kit provides visual indication of the flow rates to ease calibration WARNING Be careful not to damage the housing gasket WARNING When insulating the pump only the pump housing may be insulated The motor and condensation vents must not be blocked Choose Solar O 2012 CS IUM 001 07 2012 Page 34 of 55 TM Choose Solar Solar Water Heater Installation and User s Manual 3 7 3 3 Electrical wiring Electrical work MUST only be carried out by an authorised person such as a licensed electrician in strict conformity to relevant electrical standards and regulations The installer must ensure that 1 AO UT ss NOTE All wiring and switchgear comply with the relevant electrical standards and wiring regulations The pump must be connected to the power supply i e system controller using a wire equipped with a plug connection or a double pole switch The required connections are shown in Figure 23 WARNING The pump must be earthed in compliance to regulation The power supply cable should be of sufficient outer diameter to provide coverage at the cable entry in order to be protected f
77. tachment to tiled and metal roofs as well as timber and steel purlins or rafters are available if required Choose Solar has the expertise and experience in manufacturing reliable frames and mounting systems to suit a variety of applications For more information or customised orders contact your local Choose Solar dealer Choose Solar O 2012 CS IUM 001 07 2012 Page 12 of 55 Choose Solar Solar Water Heater Installation and User s Manual 2 8 Hail Resistance Choose Solar vacuum tubes are quite strong The SHCMV tubes are able to withstand impact from hail up to 35mm in diameter The ability for the solar collectors to withstand hail impact greatly depends on the angle of the impact Solar collectors installed at an angle of 45 or more have greater impact resistance from hail than those mounted at lower angles Hence in areas prone to hail storms with hailstones larger than 35mm it is recommended that the collector be mounted at an angle of greater than 45 2 9 Lightning Protection For locations prone to lightning strikes it is recommended that an earth line be installed from the copper circulation loop of the collector to avoid lightning related damage and or electrical safety issues Always refer to local building codes regarding lightning safety and grounding 2 10 Stainless Steel Tanks and Hydrogen Build up Choose Solar hot water tanks are manufactured using high grade stainless steel that could do without the need for anode
78. the end user YES NO Water quality has been checked YES NO A copy of the Installation and User manual is provided to the customer YES NO Installation Report and Warranty Form has been completed with two copies including the original left YES NO with the customer A copy is retained by the installer the second copy sent to Choose Solar with photos of installation work 1 2 3 4 9 6 7 8 9 1 Individual components may have their own manufacturer s installation checklists e g Gas Heater which must be checked as well All items should be marked for the installation to be considered complete and satisfactory IMPORTANT The above checklist is only intended to serve as a guide There may be site specific installation procedures not included on this list Installation of the Choose Solar water heating systems must be carried out in accordance to all applicable Standards and Regulations by qualified tradesperson s who hold relevant industry licenses or certificates required for completing the installation and or related work Warranty is covered under the terms and conditions outlined in the Warranty section in the Choose Solar Solar Water Heater Installation and User Manual ADDITIONAL COMMENTS Customer to retain this copy of form CS IRWF 001 07 2012 Choose Selar INSTALLATION REPORT amp WARRANTY FORM Installer s Copy CUSTOMER INSTALLER DD M
79. the pressure of the water supply e g mains water tank bore water supply entering the hot water system is below 400kPa crackling or banging noise may be heard from the pipes This Choose Solar O 2012 CS IUM 001 07 2012 Page 10 of 55 Choose Solar Solar Water Heater Installation and User s Manual happens more often during stagnation conditions when there is minimum hot water usage but plenty of sunlight The noises are caused by the formation of steam in the pipe lines when hot water taps are opened This condition is not dangerous but can be disturbing and noisy Installing a pressure pump to increase the pressure from the cold water mains to above 400kPa should greatly reduce if not eliminate the noises 2 4 Water Quality Municipal water supplies do not usually cause problems to the solar water heating system However if they do frequent and expensive maintenance may be required High mineral content in the water can cause lime scale formation which may block up plumbing in hot water systems Generally the higher the pH the hardness and temperature of the water the quicker the scale will form In which case it is extremely important that the water supply must meet the following requirements If in doubt contact your local water authority and or have your water tested Condition Measure Dissolved solids 600 mg L or ppm Hardness 200 mg L or ppm Chloride 250 mg L or ppm Free Chlorine 5
80. ther relevant requirements such as WaterMark and AS3498 After the site inspection and discussion with end user regarding the hot water needs the installer should recommend the system design and size that are most suitable The installation of a chosen system should only proceed with the consent of the customer If customers wish to make alterations to the standard system designs provided professional advice for the design and installation of the solar heating system from an authorised person must be sought and approved by relevant authorities Choose Solar will NOT be held responsible for any design which deviates from the approved designs contained in this manual or any damage of supplied components as the result of inappropriate design 3 3 1 System Choice Two system designs from Choose Solar Residential System Design A RSD A and Residential System Design B RSD B are intended to suit different hot water requirements at least cost Choose Solar O 2012 CS IUM 001 07 2012 Page 14 of 55 Choose Solar Solar Water Heater Installation and User s Manual Generally if most of the amount of hot water used during peak usage i e evening can be supplied through solar water heating you can go with RSD A However if your hot water usage regularly exceeds the available hot water supply during peak usage it will be sensible to go for RSD B with the auxiliary pump This pump circulates the hot water from the instantaneous gas booster to the uppe
81. tion are connected by M6 x 40 bolt and tightened by M6 nut View of the tightened M6 nut is provided in Figure 12 for guidance Tightened nut and bolt Rear pillar i I 4 Left Rear bar Upper Figure 12 2 The two side frames i e left and right shall be connected by rear bars front bars lower bar rear supporting bars and tightened by M6 x 12 bolt and M6 nut Refer to Figure 13 and Table 3 Frame installation illustrations for more guidance in the frame installation Choose Solar 2012 CS IUM 001 07 2012 Page 25 of 55 Choose Solar solar Water Heater Installation and User s Manual Left side frame Right side frame Rear bar Upper Hl Front bar Upper REES x N i Rear supporting bar Hl ll j H Rear bar Lower Reflector bar gt Wd Pia HI P Jl A ra d Y A V a f d 3 I Wis HI d ji T Front bar Lower N E P Md We F c TERM m y Lower bar AL Vj Ma A CAN 22d E 9 Figure 13 Table 3 Frame installation illustrations Rear bar Upper Side bar Left Rear pillar Left Rear pillar Left Rear bar Lower Rear supporting bar Left Front pillar Side long bar ES Reflector Choose Solar O 2012 CS IUM 001 07 2012 Page 26 of 55 Choose Solar solar Water Heater Installation and Us
82. tube which is inserted into the header with slight upward force The bottom end of SHCMV tube shall be supported by the protecting cap and secured by tightening the adjustable bolt No up and down movement space is allowed When the tube is secured the tube cap shall be locked by snapping into the two side pockets See Figure 31 below Front pillar Adjustable bolt s Lower bar 6 A Locking pocket E Cross section M Tube cap Figure 31 4 After installing the vacuum tubes go through all of them to see if any of them is visibly dirty If so clean the tube using liquid glass cleaner with cloth or paper When the vacuum tube installation is complete follow the post installation procedures to make sure the entire solar water heating system is complete and operational 3 13 Post Installation Choose Solar strongly recommend the following processes to ensure ease of follow up in the future if required 3 13 1 Complete Checklists Ensure that all the items in the system installation checklist are accounted for The installation checklist forms part of the installation record and is located at the rear of this manual Some components such as the gas heater have their own installation checklist in their respective manufacturer s manuals Make sure they have also been checked Choose Solar O 2012 CS IUM 001 07 2012 Page 46 of 55 Choose Solar Solar Water Heater Installation and User s Manual 3 13 2 Check Solar Water
83. umbing kit 2 2 3 Pressure Temperature Relief Valve The hot water tank is fitted with a pressure temperature relief PTR valve set at 700kPa to ensure safe operation of the system It is designed to discharge small quantities of hot water from time to time during heating to allow a degree of hot water expansion Choose Solar O 2012 CS IUM 001 07 2012 Page 9 of 55 Choose Solar Solar Water Heater Installation and User s Manual It is recommended that the PTR valve be operated once every 6 months to maintain reliability of the system This operation can remove lime deposits and verify that the valve is not blocked The valve must be released with care as the water coming out will be HOT and can be in the form of steam An open ended copper drain line i e open to the atmosphere should be connected to the PTR valve to channel the water downward to a safe and appropriate drainage location See Section 4 Maintenance and Service Calls for more information A PTR valve is supplied in the Choose Solar Plumbing Kit 2 3 Water Temperature Hot water systems can store water at temperatures above 50 C which is capable of causing scalding In fact solar water heaters can generate temperatures in excess of 85 C In which case it is a regulatory requirement for a tempering valve to be fitted to prevent hot water exceeding the maximum safe temperature i e not more than 50 C from reaching the end user A tempering valve is provided in the Choose
84. usceptible to the same corrosion but a rubber pad should always be used to avoid the roofing material being damaged Choose Solar O 2012 CS IUM 001 07 2012 Page 11 of 55 Choose Solar Solar Water Heater Installation and User s Manual Choose Solar can supply and recommends the use of stainless steel mounting fasteners However if galvanised components are used non conducting separators e g fibre washes rubber pads etc should be employed to avoid direct contact between the two metals Corrosion related damages are not covered by warranty 2 6 Freeze Protection Choose Solar s solar water heating systems have been tested to comply with AS NZS 2712 s Protection against freezing to Level 2 conditions Choose Solar s system controller is programmed to provide automatic freeze protection to the solar water heating system When the temperature at the solar collector is below the pre set frost protection temperature 2 10 C the circulation pump is switched ON and when collector temperature is 5 C above the pre set protection temperature the pump is stopped The Choose Solar vacuum tubes and manifold are designed to withstand cold weather conditions They have been tested to resist extreme low temperature down to 50 C They do not require integrated freeze protection such as antifreeze chemical liquids unless required to operate in winter temperatures below 5 C for extended periods If antifreeze is needed only food grade heat tran
85. without a hoist because the collector tubes manifold and frame are installed separately Also the collective weight of a vacuum tube collector is much lighter than other types of collector with single piece constructions This can result in savings in installation time and expense e Superior Insulation The vacuum in the collector tubes is an excellent insulator of heat providing superior resistance to heat losses through conduction and convection even under extremely cold winter temperatures and windy conditions This means that once heat is absorbed it is transferred to the water in the manifold and not lost to the external environment e Easier Maintenance Faulty tubes can be replaced independently from the collector panel without the need to shut the whole system down This is because the vacuum tubes are installed in the manifold via dry connections Generally cleaning is not required but if you suspect the collector is being covered by dirt or leaves refer to Section 4 Maintenance and Service Calls for maintenance instructions Also in the event of broken tube s the hot water system will still operate normally and safely e Longer Lasting As the SHCMV tubes are fully sealed the surface of the absorber is protected by the vacuum from moisture and condensation which often cause corrosion and degradation of the absorber coating in other types of collectors This trait prolongs the life of vacuum tube collectors which easily exceeds 2

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