Install Manual
Contents
1. If the system pressure no longer corresponds to the operating pressure repeat commissioning as described from page 11 onward Gaskets below the ball valves Perform partial draining as described in 6 1 Partial draining of the solar installation specialist Gaskets above the ball valves Drain the solar thermal system completely as described in 6 2 Complete draining of the solar installation specialist Dismount individual components of the station and insert new gaskets Re assemble the station Connect the station and the system by means of pipes Check all screw connections and retighten them if necessary Open the ball valves 5 2 1 2 If the system pressure no longer corresponds to the operating pressure repeat commissioning as described from page 11 onward 20 99607052WS8x V04 2011 08 6 Maintenance and decommissioning specialist 6 5 Dismounting specialist 1 Drain the solar thermal system completely as described in 6 2 Complete draining of the solar installation specialist 2 Disconnect the pipe joints with the solar thermal system 3 To remove the solar station from the support pull out the clip springs sideways using a screwdriver 4 Pull out the station towards the front 2011 08 99607052WS8x V04 21 7 Application range of the check valves specialist 7 Application range of the check valves specialist Within their application range the two check valves2. PAW NA Limited Partnership 45 Davis Street Webster MA 01570 Tel 1 508 943 4240 Fax 1 508 943 4141 Email info paw eu Web www paw eu d Installation and Commissioning Manual Solar Stations FlowCon Max Evolution II 1 For your safety Table of Contents 1 2 3 4 10 FAN hr 3 1 1 DEN 3 1 2 BJ 0 01 11510 AD gt NE EET EE EE EE EE oes 3 1 3 Qualficaton Of the EE EEE EEE KE NE 4 1 4 Hand over of the system specialist orrrrnnnnrrnnnrrrnnrrrrnnrrnnnnrvnnnrrrnnrrnnnnrrnnrnrnanennnnrnnnsnennnsrennnsrnnnssnnnasennnssnnnn 4 1 5 General safety iNStruCtions cccccssecccseecceeseeceneecsueeceueeeceusessaeeesaaeessueeessueesseeesseessaeeessueessueeesaeeesseeessueeesaaees 5 1 6 General instructions regarding solar fluid rarrrrnnrrnnnnrrnnnnrvnnnrrrnnrrrnnnrvnnnrnnnnnennnnernnannnnnsrnnnsnnnnnennnannnnnsennnnsennene 6 DSSCHIDUON Of the PFOdUE cacissurcsinisndnsesiinesenvabanndaneederonddensbiedacientusisinmanahate E AENEA EECA 7 Assembly and installation Specialist cccceccseccseecseeceeeceeceeecceecaeeceeesaeecseceeecauecaeesseeeseeceeesseeseeesseeneesaeesaes 8 Commissioning specialist scccsecccseeceseeceeeccseeceseecaeeceseecaseecaeecegecsaneceseesaeeesaeeseuessaeeesagessaeesageesasesseeeses 11 4 1 Flushing and filling the solar Circuit SPECIAlISt ccc cceececceeeeeeeeeeceeeeeeeeeeeeeeeseeeeeeeeeeseeeeseeeeeeaeeeesaese
3. Instruct the end user to have the solar station serviced and repaired by a specialist only The controller settings must not be changed by the customer Explain to the end user the function of the system and of the safety devices Point out to the end user that the shell must remain mounted during operation and that the ball valves with temperature gauges and the ball valve in the flowmeter must be open 2011 08 1 For your safety 1 5 General safety instructions Before installing and commissioning the product you must read and observe the following safety instructions WARN N G Danger of scalding due to escaping vapor If the system pressure is too high hot solar fluid will escape from the pressure relief valves and can result in scalding gt Flush and fill the system only if the collector temperatures are below 150 F 70 C gt Connect a discharge line to the safety assembly Observe the instructions regarding the pressure relief valve gt The pressures calculated by the installation planner for the expansion tank and the operating pressure of the installation must be set A CA UTIO N Risk of burns The valves and fittings and the pump may heat up to more than 212 F 100 C during operation SS gt The shell must remain closed during operation C A UTIO N Personal injury and material damage caused by excess pressure Closing both ball valves will disconnect the safety
4. 200 mmWC and spindle Safety against pressure increase exchangeable under pressure Exact flow rate control All metal temperature gauges integrated Flushing filling and draining the circuit into the ball valve with immersion sleeve Measuring the supply and return Flowmeter 1 10 Usgpm or 5 40 I min with temperatures ball valve Deaerating the solar loop Safety assembly with pressure relief valve Shutting off the circuits 87 psi 6 bar pressure gauge and l paa l Preventing gravity circulation connection for expansion tank i Thermal insulation of the components Airstop with manual bleeding for venting the solar circuit flush and fill valves Total height 18 7 475 mm Operating pe Max operating temperature 248 F 120 C ata Max propylene glycol content Materials EPP 0 043 W m K Flow rate l h PAW products specified in Imperial or metric units are approximate and are provided for reference only For precise measurements please contact PAW Technical Service PAW Pressure MWC Dr Jod ed ee od Sl SD MD D AA O GA O U O mn Te Em U mn Em Pressure ft head reserves the right to change or modify product design construction specifications or materials without prior notice and without incurring any obligation to make such changes and modifications on PAW products previously or subsequently sold In the USA distributed by PAW NA LP 45 Davis Street Webster MA 01570 Tel 1 508 943 4240 Fa
5. 24 Technical data and pressure drop characteristiC rrrnnrnnrennrennrrnnrrnnnrnnennnnnnnennnennnnnnnnnnnnnnennnennnennnnnnnennuennuennr 25 Soga ga SOT MNO 0 EEE EN EEE 27 99607052WS8x V04 2011 08 1 For your safety 1 For your safety Carefully read this manual before installation WARN NG indicates that there is risk of and commissioning Non observance of the death serious injuries or instructions in this manual may lead to serious considerable material material damage and serious injuries that may damage if suitable safety result in death precautions are not taken gt Keep this manual in close proximity of the A CA UTION indicates that there is a risk system for later use of light injuries if suitable safety precautions are not taken NOTICE indicates that there is a risk of material damage if suitable safety precautions are not taken 1 1 About this manual 1 2 Designated use This manual describes the function The solar station is a pre assembled fitting assembly installation commissioning and operation of checked for tightness and used for recirculating the solar the solar stations FlowCon Max Evolution Il fluid in the solar circuit The solar station must only be The chapters called specialist are only used in solar thermal systems as pumping station in the addressed to specialists solar circuit taking into consideration the technical limit For other components of the solar installati
6. and fill the system only if the collector temperatures are below 150 F 70 C WARN N G Propylene glycol hazardous in case of ingestion Propylene glycol is hazardous in case of ingestion It is irritant in case of eye or skin contact gt Wear chemical resistant protective gloves and safety glasses with side shields when handling propylene glycol mixtures gt Observe the instructions of the antifreeze manufacturer N O TI CE Risk of frost It often happens that solar thermal systems cannot be completely drained after flushing Thus there is a risk of frost damage when flushing with water gt Therefore the solar thermal system should only be flushed and filled with the solar fluid used later on gt Use a water and propylene glycol mixture with max 50 of propylene glycol as solar fluid in order to avoid damaging the seals N O TI C E Note regarding the commissioning sequence gt When commissioning the system first fill the storage circuit and then the solar circuit This guarantees that any absorbed heat can also be dissipated 2011 08 99607052WS8x V04 11 4 Commissioning specialist 4 1 Flushing and filling the solar circuit specialist The fill and drain connections required for flushing and filling have been integrated into the solar station In order to flush any dirt particles that may still be present out of the system use only flush and fill stations equipped with suit
7. assembly from the heat exchanger Heating the storage tank can result in the formation of high pressures which may lead to material damage and personal injury gt In operation the ball valves with temperature gauges and the ball valve at the flowmeter must always be open gt Close the ball valves only when service is required N O TI CE Material damage due to mineral oils Mineral oil products permanently damage the EDPM sealing elements resulting in a loss of their sealing characteristics We cannot be held liable for damage caused by seals thus damaged nor will we offer a replacement under warranty gt It is imperative to prevent the EPDM sealing elements from making contact with substances containing mineral oils gt Use silicon or polyalkylene based lubricants free of mineral oil such as Unisilikon L250L and Syntheso Glep 1 from the company Kluber or a silicone spray 2011 08 99607052WS8x V04 5 1 For your safety 1 6 General instructions regarding solar fluid WARN N G Propylene glycol hazardous in case of ingestion Propylene glycol is hazardous in case of ingestion It is irritant in case of eye or skin contact gt Wear chemical resistant protective gloves and safety glasses with side shields when handling propylene glycol mixtures gt Observe the instructions of the antifreeze manufacturer It often happens that solar thermal systems cannot be completely drained after flush
8. Application range of the check valves specialist 2 4 if A Do you need to know it exactly The density of the solar fluid decreases with rising temperature In high installations with large temperature differences the difference in density will cause gravity circulation This circulation can cool down the storage tank Calculation example AP Ap g h Collector temperature 41 F 5 C Density solar fluid 91 1042 kg m Storage tank temperature 153 F 67 C gt Density solar fluid p2 1002 5 kg m Ap p1 p2 39 5 kg m g 9 81 m s Installation height h 33 ft 10 m AP 3875 Pa 395 mm wc 15 6 inch head The two check valves 400 mm wc 15 8 inch head are sufficient for an installation height of 33 ft 10 m anda temperature difference between the collector and the tank of up to 112 R 62 K 2011 08 99607052WS8x V04 23 AN 8 Spare parts specialist 8 Spare parts specialist In the event of a complaint please fill in completely the commissioning log on page 27 and send it back to us E531710 B5250458NA01 BI6241 B90231 659047 E5201 i E l 1 ty AN 3 T pa hye ng N mV 17 a e ra r y I ma yb pk RAH JA E530607 E 20901 B5040160US Oo E z LL Metric 5 40 I min B5040160NA 24 99607052WS8x V04 2011 08 9 Technical data and pressure drop chara
9. able micro filters Ball valve with integrated check valve Normal direction of flow in the picture downstream 14 mm gt il 45 90 Check valve in operation Check valve not in operation Ball valve closed through flow in flow direction only through flow in both directions no through flow 12 99607052WS8x V04 2011 08 4 Commissioning specialist Airstop 4 2 The airstop with manual bleeder is used to bleed the solar thermal system To ensure a perfect ventilation of the solar circuit the flow velocity must be at least 0 3 m s in the supply Pipe Flow rate Flow rate diameter at 0 3 m s at 0 3 m s US gpm l min aed a lg The air liberated from the solar fluid is collected in the upper area of the airstop and can be discharged via the vent plug 4 2 WARN N G Danger of scalding due to escaping vapor The escaping solar fluid can have a temperature of more than 212 F 100 C and cause scaldings gt Carefully open the vent plug and close it again as soon as medium escapes Venting the solar thermal system after commissioning At the beginning vent the solar thermal system daily and then weekly or monthly depending on the vented air quantity This ensures optimum operation of the solar thermal system Check the system pressure after venting and increase it to the prescribed operating pressure if necessary 2011 08 99607052WS8x V04 13 4 Commission
10. cteristic 9 Technical data and pressure drop characteristic Dimensions Total height 18 7 475 mm Total width 12 306 mm Depth 7 1179 mm Center distance supply return 3 94 100 mm Pipe connections 1 female thread Connection for the expansion tank 34 female thread NPT Outlet of pressure relief valve 34 female thread Operating data Max admissible pressure PN 10 Max operating temperature 248 F 120 C Short term load 320 F 160 C lt 15 minutes Max propylene glycol content 50 Equipment Pressure relief valve 87 psi 6 bar Pressure gauge 0 87 psi 0 6 bar 2 x 7 9 inch head 2 x 200 mmWC Check valves can be opened Flowmeter 1 10 Usgpm or 5 40 l min Material Valves and fittings Brass Gaskets EPDM Check valves Brass Insulation EPP A 0 043 W m K Fe ZN gt 16 38 i I I y Pa 2011 08 99607052WS8x V04 25 Flow rate US gpm Wito Star 30 U25 wost so us TT T T 9 9 8 8 Pressure MWC O UIO UIO UI O UI O UI O UI O UI O UI OVO UI Er E mee ee sz i a dte Ed as ER m r ps OOFRFNN WW BS B UTVUTOY ON 1000 1200 1400 1600 1800 2000 2200 2400 9 Technical data and pressure drop characteristic 21 0 18 0 15 0 12 0 9 0 6 0 3 0 0 0 99607052WS8x V04 Pressure ft head 2011 08 10 Commissioning log 10 Commissioning log System operator I
11. eaeeeeaeeeees 12 4 2 Preparation for flushing specialist ccc cececceceeececeeeeceeeeeeeeee ee eeeseeeeeseeeeseeeeseeeeseeeeeseeeeseeeeeeaeeeesaeeesseeeeaaeeees 14 4 3 Flushing ANG i elg ee Te EE EEE EEE 14 4 4 Setting the solar thermal system specialist rrrrnrrrnnnrrnnnrrrnnrrrranrrrnnnrrrnrrrnnnernnnrnnnnrnnnnnrnnnnsennnnsrnnnnnnnsnennn 17 CEAN 0 EEE EEE EN EE EE sqtenianadsesecieseonee 18 Maintenance and decommissioning specialist cccseccsceceeccececeeceeceeecaeeceeesaeceeecaeeceesaeeteeeseeesaesseeseeeess 18 6 1 Partial draining of the solar installation specialist rrrrrrrnnrrrnnrrrranrrranrrrnnrrrnarrnnnnrnrnnrrrnnrrnnnarennnnsennnnennnsene 19 6 2 Complete draining of the solar installation specialist rrrrerrrrnnrrrrnnrrrnnrrrnnnrrnnrrrrnnrrrnnrrnrnnrnnnnnrrrnnernnnsnennn 19 6 3 Replacing the pump specialist cccccccceccssscccececseecesecsseeceeecsaueceusecseecauseaseecseecaueeeueeseeeesuesaueesseeeneeeseeees 20 6 4 Replacing the gaskets in the solar station specialist cece ceeeeceeeeeeeeeeeeeeeeeseeeeseeeseeeeeeeeeeeeseeeeseeeeneeeseeees 20 6 5 Dismounting specialist Luse te vies alt aumceelantinauicind bu daudetmsdanapnnailaus borsida snust beast ud ikednketeggen 21 Application range of the check valves SpeCialist cccccccssccseeeceeeeseeeeseceseeeeeueeseeeeeaeeesaeeeseeeseeesaeeseeeneees 22 Spare Pans SPECIES Teie
12. eld 99607052WS8x V04 7 3 Assembly and installation specialist 3 Assembly and installation specialist The solar station may only be installed indoors with a power supply of 120 V 60 Hz The installation site must be dry stable and frost free NOTICE Material damage due to high temperatures Since the solar fluid may be very hot near the collector the fitting assembly must be installed at a sufficient distance from the collector field gt It may be necessary to install an upstream tank in order to protect the expansion tank 1 Remove the station from the packaging 2 Pull off the front shell 3 Copy the mounting holes next to the temperature gauges of the solar station to the mounting surface 4 Drill the holes and fasten the solar station to the wall by means of the enclosed screws and if required the enclosed wall anchors 99607052WS8x V04 2011 08 3 Assembly and installation specialist 5 Connect the solar station to the system by means of pipes Supply from collector field Return to the collector field Supply to the storage tank Return from the storage tank All screw connections are designed as 1 female thread 6 Connect a discharge line to the connection 1 3 at the pressure relief valve Conduct the discharge line into a heat resistant container Secure the discharge line such that in the event of escaping vapor people in the vicinity are not put a
13. electrical devices in the solar circuit from the power supply before carrying out maintenance work or decommissioning gt Secure the electrical devices against being switched on again WARN N G Risk of burns and scalding The valves and fittings may heat up to more than 212 F 100 C During maintenance or decommissioning the solar fluid may escape as vapor and result in scalding gt Flush and fill the system only if the collector temperatures are below 122 F 50 C gt Wait until the solar fluid has cooled down to 122 F 50 C 18 99607052WS8x V04 2011 08 6 Maintenance and decommissioning specialist 6 1 Partial draining of the solar installation specialist Partial draining allows components in the station below the ball valves 5 2 1 2 for example the pump to be replaced 1 Disconnect the controller from the power supply and secure it against being switched on again 2 Close the ball valves in the supply and return ball valve 5 2 1 2 by rotating them to the 90 position 90 see page 12 3 Connect a heat resistant hose to the drain valve 3 2 Make sure that the solar fluid is collected in a heat resistant container WARN N G Danger of scalding due to hot solar fluid The escaping solar fluid can be very hot gt Position and secure the heat resistant collecting container such that persons nearby ra and the environment are not put at risk when the
14. in the solar station prevent unwanted gravity circulation The efficiency of the check valves depends on e the installation height e the temperature difference between the storage tank and the collector e the type of heat transfer medium In the diagram below you can see whether the check valves integrated in the stations are sufficient If the check valves are not sufficient you need to install additional components to prevent gravity circulation You can mount components such as syphons heat traps 2 way valves zone valves or additional check valves Example e You would like to install a FlowCon solar station The station comprises two check valves 2 x 7 9 inch head 15 8 inch head 2 x 200 mm wc 400 mm we e You use a mixture of water and 40 of propylene glycol as a solar fluid e The installation height between the collector and the storage tank is 33 ft 10 m Solar fluid Installation height in ft 15 0 25 0 35 0 45 0 55 0 65 0 75 0 85 0 95 0 105 0 115 0 125 0 135 0 145 0 Temperature difference storage tank collector in R Result The check valves prevent gravity circulation up to a temperature difference of about 112 R 62 K If the temperature difference between the collector and the tank is larger the difference in density of the solar fluid will be so large that the check valves are pushed open solar fluid mixture of water and 40 of propylene glycol 22 99607052WS8x V04 2011 08 7
15. ing Thus there is a risk of frost damage when flushing with water Therefore the solar thermal system should only be flushed and filled with the solar fluid used later on Strictly follow the instructions of the antifreeze manufacturer for operating a solar thermal system All components in the solar station are resistant to a percentage of propylene glycol of up to 50 Determine quantity according to system volume See instructions of the collectors storage tank and expansion tank 6 99607052WS8x V04 2011 08 2 Description of the product 2 Description of the product 2011 08 5 1 1 2 11 L R Assembly example 1 1 1 2 1 3 1 4 1 5 1 6 3 1 3 2 3 3 3 4 4 1 4 2 5 2 5 1 1 3 The solar station is mounted on a wall support and held by clip springs The station contains important valves and fittings and safety equipment for operating a solar thermal system Return to the collector field Ball valve with temperature gauge in the return equipped with replaceable spindle blue Pressure relief valve 87 psi 6 bar Fill valve Connection for the expansion tank Pressure gauge 87 psi 6 bar Solar pump Ball valve in flowmeter Drain valve Flowmeter Return from the storage tank Supply to the storage tank Airstop equipped with manual bleeder Ball valve with temperature gauge in the supply equipped with replaceable spindle red Supply from the collector fi
16. ing specialist 4 2 Preparation for flushing specialist The solar circuit is flushed in the direction of flow 1 Disconnect the expansion tank from the solar thermal system Please observe the manufacturer s instructions 2 Open the check valves in the supply and return by turning the ball valves 1 2 15 2 to position 45 see page 12 3 Close the ball valve 3 1 in the flowmeter 4 Connect the flush and fill station to the solar station Pressure hose to the fill connection 1 4 Flushing hose to the drain connection 3 2 4 3 Flushing and filling specialist 1 Open the fill and drain valves 1 4 3 2 2 Put the flush and fill station into operation and keep flushing until clear medium escapes 3 Vent the solar thermal system several times at the vent plug of the airstop 4 2 during flushing until the solar fluid escapes without forming bubbles see page 13 99607052WS8x V04 2011 08 4 Commissioning specialist 5 2 4 2 Check the pressure on the pressure relief valve 2011 08 1 2 531 11 Wi gt G 87 psi 6 bar Close the drain valve 3 2 with the filling pump running and increase the system pressure depending on the design of the system to max 5 bar The pressure can be read on the pressure gauge Close the fill valve 1 4 and switch off the pump of the flush and fill station Check at the pressure gauge if the system pressure is dro
17. nstallation site Collectors number type Collector surface area m System height m Height difference between station and collector field Pipeline o mm m Ventilation collector field O Manual bleeder 11 Automatic bleeder Ol No O Vented Airstop station O Vented Solar fluid type of glycol Antifreeze checked up to C Serial numbers Flow rate l m Station Pump type TG Controller Pump stage I II HI System pressure mbar Software version Expansion tank type Initial pressure mbar Pressure relief valve oO Checked Flow rate Check valves o Checked reducing position Installation company Date Signature 2011 08 99607052WS8x V04 27 i 607052 Submittal Data Information Solar station FlowCon Max Evolution II Version 02 Effective August 1st 2011 Supersedes May 1st 2011 ob Ener contractor Rep Features Use in closed loop design only The solar All medium carrying parts are made of station is used on the primary loop of solar brass thermal systems to control the temperature in the hot water storage tank 1 female connections This station contains the functional and Fully pre assembled on steel wall support ick and t had idiei safety devices for optimum circuit control quick and easy to mount on the wall due to stable snap lock technology The components enable Two ball valves with brass check valves Medium circulation with solar pump 7 9 inch head
18. on values indicated in this manual The station may only be such as collectors storage tanks expansion assembled indoors The station must be assembled and tanks and controllers please refer to the operated as described in this manual instructions of the corresponding manufacturer Using the station contrary to its designated use will invalidate all liability claims Only use accessories from PAW 2011 08 99607052WS8x V04 3 1 3 Qualification of the installer 1 For your safety Installation and commissioning of this equipment should The following must also be observed during installation be done by qualified installers specialist in accordance and commissioning with local state and federal codes which may be e Relevant regional and national regulations for applicable 1 4 Hand over of the system specialist After installation and commissioning the installer is gt responsible for familiarizing the end user with the functions of the system and the basic safety measures gt 4 99607052WS8x V04 example Occupational Safety and Health Act Relevant accident prevention regulations for example of the Employer s Liability Insurance Association Instructions and safety instructions mentioned in this manual After commissioning fill in the log on the last page of this manual Hand the manual over to the end user Instruct the customer to keep the manual in close proximity to the system
19. pping and eliminate any leaks if present Reduce the pressure on the drain valve 3 2 to the system specific pressure Connect the expansion tank to the solar circuit and set the operating pressure of the solar thermal system by means of the flush and fill station for the required operating pressure see instructions of the expansion tank Close the fill and drain valves 1 4 3 2 Open the ball valve 3 1 in the flowmeter Set the check valves in the ball valves 1 2 5 2 to operating position 0 see page 12 99607052WS8x V04 15 Correct Incorrect 4 Commissioning specialist gt Check if the sensors and the pump are properly connected to the controller and if the controller housing is closed Only then should the mains plug of the controller be plugged into a socket Connect the controller to be provided on site to the mains and set the solar circuit pump in the manual mode to ON as described in the controller manual Run the solar circuit pump at maximum rotation speed for at least 15 minutes In the meantime vent the solar thermal system several times at the vent plug of the airstop until the solar fluid escapes without forming bubbles see page 13 If necessary increase the system pressure to the operating pressure again Remove the hoses of the flush and fill station and screw the the closure caps on the fill and drain valves The closure caps are only for p
20. rotection against soiling They have not been constructed for high system pressures their tightness being guaranteed by the closed ball valves 16 99607052WS8x V04 2011 08 4 Commissioning specialist 4 4 Setting the solar thermal system specialist Scale 1 10 Usgpm or 5 40 I min The unit is specified on the scale Reading edge Upper edge of the floating body Example approx 4 USgpm Observe the specifications of the manufacturer of the collectors for the correct adjustment of the flow rate 1 Set the desired max flow rate via the rotation speed of the solar pump The controller will set the speed accordingly In exceptional cases the flow rate can also be reduced via the ball valve 3 1 2 Mount the front shell on the solar station 3 Set the controller to automatic mode see controller manual 2011 08 99607052WS8x V04 17 5 Cleaning 5 Cleaning A CA UTIO N Risk of burns The valves and fittings and the pump may heat up to more than 212 F 100 C during operation SS gt The shell must remain closed when cleaning Clean the solar station only from the outside with a damp cloth Never use scouring or sand containing cleaning agents 6 Maintenance and decommissioning specialist Before maintaining and decommissioning the product you must read and observe the following safety instructions WARN I N e Risk of electric shock S gt Disconnect all
21. solar thermal system is drained 4 Open the drain valve 3 2 5 Carefully open the vent plug at the airstop 4 2 and close it again see page 13 6 2 Complete draining of the solar installation specialist Complete draining enables replacement of the solar fluid dismounting of the solar station and replacement of seals above the ball valves 5 2 1 2 1 Perform partial draining as described above 2 Open the check valves in the supply and return ball valves 5 2 1 2 by rotating them to the 45 position 45 see page 12 3 To accelerate draining of the solar circuit you can open the bleeding device if present at the highest point of the solar thermal system 4 Dispose of the solar fluid observing the local regulations 2011 08 99607052WS8x V04 19 6 3 Replacing the pump specialist w 10 6 4 Replacing the gaskets in the solar station specialist 9 2 6 Maintenance and decommissioning specialist Perform partial draining as described in 6 1 Partial draining of the solar installation specialist Disconnect the pipe joint between the solar station and the storage supply Dismount the flowmeter 3 3 Dismount the pump Install the new pump Do not forget to insert new gaskets Mount the flowmeter 3 3 Connect the station and the system again by means of pipes Check all screw connections and retighten them if necessary Open the ball valves 5 2 1 2
22. t risk 7 Connect the connecting line for the expansion tank below the pressure gauge 1 5 and fasten the holder for the expansion tank 8 Adapt the initial pressure of the expansion tank to the system and connect the expansion tank Observe the manufacturer s separate instructions of the expansion tank Also observe the layout of the installation planner 9 Check all screw connections and retighten them if necessary Available as an option 2011 08 99607052WS8x V04 9 3 Assembly and installation specialist gt Prior to commencing electrical work pull the mains plug gt Only after completing all installation work flushing and filling should the mains plug of the controller be plugged into a socket This avoids an unintentional start of the motors 10 Connect the sensors and the pump to the controller The controller must be provided on site Observe the separate instructions of the controller The assembly of the solar station is now complete and you can commission the station 10 99607052WS8x V04 2011 08 4 Commissioning specialist 4 Commissioning specialist Before commissioning the station you must read and observe the following safety instructions PG I N e Risk of burns and scalding The valves and fittings may heat up to more than 212 F 100 C During flushing filling and venting the solar fluid can escape as vapor and result in scalding gt Flush
23. x 1 508 943 4140 Visit our website at www paw eu Art no 99607052WS8 amp x Version V04 Issued 2011 08 PAW NA Limited Partnership Subject to technical changes 45 Davis Street Printed in Germany Copyright by PAW NA Limited Partnership Webster MA 01570 USA PAW NA Limited Partnership WWW paw eu 45 Davis Street Phone 1 508 943 4240 Webster MA 01570 USA Fax 1 508 943 4141
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