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PAW GmbH & Co.KG 

Böcklerstr. 11, D-31789 Hameln, Germany 

Phone: +49-5151-9856-0, Fax: +49-5151-9856-98 

E-mail: [email protected], Web: www.paw.eu 

2017/05 

99609x4x5-mub-en – V05

 

1

 

 

 

Installation and Operation Instructions 

Transfer Stations: 

SolexMidi TW - DN 20  

SolexMaxi TW - DN 25 

[hydraulics] 

 

 

 

SolexMidi TW 

SolexMaxi TW 

 

Summary of Contents for 6095436

Page 1: ...Germany Phone 49 5151 9856 0 Fax 49 5151 9856 98 E mail info paw eu Web www paw eu 2017 05 99609x4x5 mub en V05 1 Installation and Operation Instructions Transfer Stations SolexMidi TW DN 20 SolexMaxi TW DN 25 hydraulics SolexMidi TW SolexMaxi TW ...

Page 2: ...tem no 99609x4x5 mub en Version V05 Issued 2017 05 Translation of the original instructions We reserve the right to make technical changes without notice Printed in Germany Copyright by PAW GmbH Co KG PAW GmbH Co KG Böcklerstraße 11 D 31789 Hameln Germany ...

Page 3: ...lexMidi SolexMaxi with controller SC5 14 19 5 Maintenance specialist 20 5 1 Draining the solar station 21 5 2 Deinstallation 21 6 Spare parts specialist 22 6 1 Spare parts control and insulation SolexMidi TW 6095436 22 6 2 Spare parts hydraulics SolexMidi TW 6095436 23 6 3 Spare parts control and insulation SolexMaxi TW 6096465 24 6 4 Spare parts hydraulics SolexMaxi TW 6096465 25 7 Technical data...

Page 4: ... TW and SolexMaxi TW transfer stations for charging buffer tanks or domestic hot water tanks The chapters called specialist are intended for specialists only For other components of the solar installation such as pumps collectors storage tanks or expansion tanks please observe the instructions of the corresponding manufacturer DN 20 Item number Controller SC5 14 Flow rate maximum Collector surface...

Page 5: ...ible overpressures in the station Pressure gauge for displaying the installation pressure in the primary circuit Vent valves to easily vent the primary circuit and the secondary circuit Fill and drain valves with caps to flush fill and drain the primary circuit A flow meter FlowRotor and temperature sensors for heat quantity balancing primary In the heating circuit the installation must be equippe...

Page 6: ...ated in these instructions Due to its design the station must be mounted and operated as described in these instructions Only use PAW accessories with the transfer station Improper usage excludes any liability claims When the sun shines the collectors can become very hot The solar fluid in the circuit can heat up to more than 100 C Only flush and fill the solar circuit when the collector temperatu...

Page 7: ...calding due to vapour escape With pressure relief valves there is risk of scalding due to vapour escape During installation check the local conditions and if a discharge line must be connected to the safety group Observe the instructions regarding the pressure relief valve The pressures calculated by the installation planner for the expansion tank and the operating pressure of the installation mus...

Page 8: ...mage to property Only close the ball valves for service and maintenance If you close the ball valves in case of servicing do also put the pumps out of operation and close the ball valves in the secondary circuit NOTICE Material damage due to mineral oils Mineral oil products cause lasting damage to seals made of EPDM whereby the sealant properties are lost We do not assume liability nor provide wa...

Page 9: ...ear the collector It may be necessary to install an intermediate tank in order to protect the expansion tank 1 You can use a drilling template in order to facilitate the installation which you can find on the station 2 Copy the mounting holes to the mounting surface 3 Drill the holes and insert appropriate wall plugs into the holes 4 Screw in the screws and let them stick about 4 cm out of the wal...

Page 10: ...pressure relief valve c the fill valve d and the manometer e to the connection of the return ball valve b 9 Connect the pipe for the expansion tank below the pressure gauge and fix the bracket for the expansion tank During servicing at the expansion tank we recommend the installation of a cap valve DN 20 item no 5302 DN 25 item no 5301 on the expansion tank NOTICE Note regarding the expansion tank...

Page 11: ...exMidi SolexMaxi Wiring plan 881 for domestic hot water systems and heating systems Wiring plan 882 for heating systems Observe the separate instructions regarding the controller SC5 14 1 Connect the temperature sensors to the controller Collector sensor S1 Storage tank bottom S2 Integrated S3 S9 FlowRotor Collector sensor S1 Storage tank 1 bottom S2 Storage tank 2 bottom S4 addit required item no...

Page 12: ...appens that the solar thermal system cannot be completely drained after flushing Thus there is risk of frost damage when flushing with water Therefore do only use the solar fluid used later to flush and fill the solar installation Use a water and propylene glycol mixture with max 50 of propylene glycol as a solar fluid NOTICE Note regarding the commissioning Flush and fill in the following order 1...

Page 13: ...tank or by means of the valves at the heating system Make sure that in the first case above only potable water must be used In the second case only treated heating water according to VDI 2035 Ö Norm H5195 1 must be used To avoid that dirt particles are washed into the heat exchanger shut the ball valves of the module and wash out the present dirt particles scale residues before commissioning the t...

Page 14: ...ank Disconnect the expansion tank from the solar circuit during flushing and filling if necessary and only use flush and fill stations with fine filters The solar circuit is flushed in the direction of flow Make sure that the pump in the solar circuit cannot be switched on Ball valve with integrated flow check valve normal flow direction in the figure below downwards 0 45 90 Check valve is operati...

Page 15: ...llected in the upper part of the Airstop and can be released at the vent plug j WARNING Danger of scalding due to vapour escape The escaping fluid can have a temperature of more than 100 C and cause scalding 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 installation daily and then weekl...

Page 16: ...ose to the drain valve g 5 Open the fill and drain valves d g and put the flush and fill station into operation 6 Slowly open and close the return ball valve b during flushing in order to vent the pump section 7 Flush the solar circuit until the solar fluid exits without bubbles see page 15 8 Close the drain valve g with the filling pump running and increase the system pressure to about 5 bars The...

Page 17: ...o life and limb due to electric shock Check if the sensors and the pumps 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 SC5 14 15 Connect the controller to the mains and set the solar circuit pump in the manual mode to ON according to the controller instructions 16 Let the solar pump run at...

Page 18: ...ealing caps only serve to protect the valves against dirt They are not designed to take up high system pressures The ball valves must be closed 19 Mount the insulating front shell 20 Set to automatic mode on the controller see controller instructions The commissioning of the solar installation is now completed Please fill in completely the commissioning report on page 31 ...

Page 19: ...ontroller If you select and save another system the parameters are reset to the factory setting In this case you need to set the following parameters in the menu In this way you make sure that the installation will work properly You can find a detailed description for the operation of the controller in the separate controller manual Preset system scheme 881 SolexMidi SolexMaxi ...

Page 20: ...solar fluid can escape as vapor and cause scalding Only carry out maintenance work when the collector temperatures are below 50 C Wait until the solar fluid has cooled down to max 50 C Example SolexMidi 1 Close the ball valves a b and exit the solar fluid at the fill and drain valve g Make sure that the solar fluid is collected in a heat resistant container 2 Change the faulty part against the new...

Page 21: ... very hot Place the collecting container so that people standing nearby are not endangered when the solar installation is being emptied 4 Open the fill and drain valve g of the transfer station 5 To accelerate draining of the solar circuit you can open the vent valve if present at the highest point of the solar thermal system 6 Dispose of the solar fluid observing the local regulations 5 2 Deinsta...

Page 22: ... of spare parts will only be processed with information on the serial number The serial number can be found in the lower right corner of the support sheet in the station In case of a complaint please send us the completely filled commissioning report on page 31 6 1 Spare parts control and insulation SolexMidi TW 6095436 ...

Page 23: ...6 Spare parts specialist 2017 05 99609x4x5 mub en V05 23 6 2 Spare parts hydraulics SolexMidi TW 6095436 ...

Page 24: ...6 Spare parts specialist 24 99609x4x5 mub en V05 2017 05 6 3 Spare parts control and insulation SolexMaxi TW 6096465 ...

Page 25: ...6 Spare parts specialist 2017 05 99609x4x5 mub en V05 25 6 4 Spare parts hydraulics SolexMaxi TW 6096465 ...

Page 26: ...ef valve internal thread Operating data Max admissible pressure prim 6 bars sec 10 bars Max Operating temperature prim 120 C sec 95 C Max stagnation temperature 140 C Max propylene glycol content 50 Operating temperature sensors 25 C to 120 C Equipment Pressure relief valve prim 6 bars sec 10 bars Pressure gauge 0 6 bars Flow rate measurement device prim FlowRotor 2 50 l min Sensors 2 x Pt1000 mou...

Page 27: ...7 Technical data 2017 05 99609x4x5 mub en V05 27 7 1 Dimensional drawing SolexMidi TW 7 2 Dimensional drawing SolexMaxi TW ...

Page 28: ...l data 28 99609x4x5 mub en V05 2017 05 7 3 Pressure drop characteristics SolexMidi TW Pressure mWC Pressure kPa Flow rate m h 7 4 Pressure drop characteristics SolexMaxi TW Pressure mWC Pressure kPa Flow rate m h ...

Page 29: ...ditional components to prevent gravity circulation You can mount components such as syphons heat traps 2 way valves zone valves or additional check valves Example The station comprises two check valves 2 x 200 mm wc 400 mm wc You use a mixture of water and 40 of propylene glycol as a solar fluid The installation height between the collector and the storage tank is 10 m Installation height in m Tem...

Page 30: ...ity circulation This circulation can cool down the storage tank Calculation example Δp Δρ g h collector temperature 5 C density solar fluid ρ1 1042 kg m tank temperature 67 C density solar fluid ρ2 1002 5 kg m Δρ ρ1 ρ2 39 5 kg m g 9 81 m s Installation height h 10 m Δp 3875 Pa 395 mm wc The two check valves in the station 2 x 200 mm wc are sufficient for an installation height of 10 m and a temper...

Page 31: ...ctor field Pipes mm l m Venting collector field Not existent Vented Manual vent valve Automatic deaerator Airstop station Vented Solar fluid type glycol Antifreeze tested up to C Serial numbers Flow rate l m Station Pump type Flow rate sensor System pressure mbars Temperature sensor Expansion tank type Initial pressure mbars Controller Pressure relief valve Checked Check valves Checked Software ve...

Page 32: ...PAW GmbH Co KG Böcklerstraße 11 D 31789 Hameln Germany www paw eu Phone 49 0 5151 9856 0 Fax 49 0 5151 9856 98 32 99609x4x5 mub en V05 2017 05 ...

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