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10 Technical data

2015/12

996404631-mub-en - V02

10.1

Dimensional drawing FriwaMini with circulation

10.2

Pressure drop characteristics FriwaMini with circulation

Pres

re [

m wc]

Pres

re [

Flow rate [m³/h]

Содержание 6404631

Страница 1: ...1 D 31789 Hameln Germany Phone 49 5151 9856 0 Fax 49 5151 9856 98 E mail info paw eu Web www paw eu 2015 12 996404631 mub en V02 1 Installation and Operation Instructions Domestic hot water module FriwaMini with circulation DN 15 ...

Страница 2: ...Item no 996404631 mub en Version V02 Date 2015 12 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 ...

Страница 3: ...11 7 Commissioning specialist 14 7 1 Filling the primary circuit 15 7 2 Commissioning of the controller 16 7 3 Maximum withdrawal flow rate 18 7 4 Setting the temperature 20 8 Maintenance specialist 21 9 Spare parts specialist 22 9 1 Spare parts primary circuit FriwaMini with circulation 6404631 22 9 2 Spare parts primary circuit FriwaMini with circulation 6404631 23 10 Technical data 24 10 1 Dime...

Страница 4: ... intended for specialists only For other components of the system such as tanks controllers or pumps please observe the instructions of the corresponding manufacturer Station Item number Controller FC3 8 Pump prim sec Heat exchanger FriwaMini with circulation 6404631 Prim Grundfos UPM2 15 75 30 plates Sec Grundfos UPM2 15 75 CIL2 Carefully read these instructions before installation and commission...

Страница 5: ... supply Temperature sensor in the heating circuit flow line Flow meter in the domestic hot water outlet Primary and circulation pump can be isolated Manual vent valve for venting the heat exchanger and the pump 1 3 Designated use The domestic hot water module must be used in heating installations between the buffer tank and the domestic hot water circuit Due to its design the station must be mount...

Страница 6: ...this manual 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 warranty for damage to property resulting from sealants damaged in this way It is imperative to avoid that EPDM gets in contact with substances containing mineral oils Use a silicone or polyalkylene bas...

Страница 7: ...t primary circuit A Manual vent valve B Temperature sensor Pt1000 C Primary pump D Ball valve E Ball valve with check valve Equipment secondary circuit F Piston valve with drain valve hot water outlet G Piston valve with drain valve circulation H Circulation pump I Analogue flow rate sensor VFS 2 40 l min J Heat exchanger K Pressure relief valve 10 bars Only for the protection of the module Does n...

Страница 8: ... plan the installation WARNING Danger of scalding due to hot water Undesirable circulation of the water in the primary circuit can cause the exit of hot water of up to 90 C at the withdrawal point External pumps must not be installed between the domestic hot water module and the buffer tank The domestic hot water module must not be connected to a distribution manifold Mounting example FriwaMini ci...

Страница 9: ...0 9 litres 50 C 1 2 litres 55 C 1 7 litres 70 C 45 C 0 7 litres 50 C 0 9 litres 55 C 1 1 litres 80 C 45 C 0 6 litres 50 C 0 7 litres 55 C 0 8 litres Calculation example for the dimensioning of the buffer tank Temperature the buffer tank 60 C Maximal withdrawal quantity needed 20 l min Domestic hot water temperature adjusted at the controller 45 C How large must the tank be to allow for a continuou...

Страница 10: ...The circulation only starts when the adjustable minimum temperature on the circulation temperature sensor is exceeded within the period of operation chosen The circulation stops after the required temperature has been reached or after the end of the chosen period of time The modes of operation can be combined as required e g time and temperature dependant operation mode The circulation is only act...

Страница 11: ...e station does not replace the safety groups of the potable water connection as per DIN 1988 The pressure relief valve only protects the module from overpressures in case of servicing NOTICE Damage to property If there are water supplies that may cause pressure surges for example flush valves washing machines or dishwashers connected to the same mains as the domestic hot water module we recommend ...

Страница 12: ...n to prevent material damage to the installation 1 Determine the mounting location of the domestic hot water module near the buffer tank The pipes in the heating circuit must not exceed a length of 4 m for DN 20 2 Copy the measure for the mounting holes to the mounting surface You can find a corresponding drilling template see on the right on the paper board under the module 3 Drill the holes and ...

Страница 13: ...d DN 25 28 x 1 5 mm 2 Primary side return to the buffer tank connection internal thread pipes at least DN 20 22 x 1 mm recommended DN 25 28 x 1 5 mm 3 Secondary side hot water outlet connection external thread flat sealing 4 Secondary side cold water supply connection external thread flat sealing 5 Secondary side hot water supply circulation connection external thread flat sealing Pipe distance to...

Страница 14: ...n the ball valve E to avoid unwanted gravity circulation For venting and flushing the check valve must be open Therefore turn the ball valve to the position 45 In this position the check valve is not operating During operation all the valves must be completely open position 0 Position 0 Position 45 Position 90 Check valve is operating flow only in flow direction Check valve is not operating flow i...

Страница 15: ...e of about 1 5 bars is reached Use appropriate water according to VDI 2035 ÖNorm H5195 1 3 Manipulate the vent valve A cautiously to let the air escape 4 Close the vent valve A 5 Close the ball valve D by turning it to position 90 6 Slowly open the ball valve E by turning it to position 45 7 Manipulate the vent valve A cautiously to let the air escape 8 Close the vent valve A 9 Check the operating...

Страница 16: ...remounted connection cable 2 Select Manual mode in the main menu of the controller and set the pump to H1 PWM signal 100 see controller manual page 19 3 Let the pump run for several minutes to deaerate the domestic hot water module 4 When the air noises do not stop carefully manipulate the vent valve A while the pump is still running and let the air escape 5 When the air noises have stopped switch...

Страница 17: ...r about 2 minutes to deaerate the secondary circuit Then close all withdrawal points in the secondary circuit 9 Make sure that the domestic hot water module is correctly integrated into the potential equalisation of the installation 10 Set the desired domestic hot water temperature in the controller see page 24 11 The domestic hot water module is now ready for operation Secondary circuit ...

Страница 18: ...ot water side of the DHW module 1000 mbars The following examples show the relations between the variables temperature of domestic hot water withdrawal flow rate and temperature of the buffer tank and show their effect on the heat transfer capacity of the DHW module Example 1 Domestic hot water temperature at the withdrawal point 45 C Temperature in the buffer tank 50 C DHW module max withdrawal f...

Страница 19: ...omestic hot water temperature 45 C after heating to 60 C and addition of cold water 10 C Boundary conditions cold water temperature 10 C Example 1 Domestic hot water temperature at the controller 60 C Temperature in the buffer tank 70 C DHW module max withdrawal flow rate 28 l min heat transfer capacity 69 kW Example 2 Domestic hot water temperature at the controller 60 C Maximum withdrawal flow r...

Страница 20: ...uffer tank temperature must be at least 5 K above the desired domestic water temperature Secondary side The possible withdrawal flow rate l min at the tap depends on the domestic hot water temperature adjusted at the controller and the temperature in the buffer tank The maximum domestic hot water flow rate through the module is 38 l min The following table shows the relation between the storage ta...

Страница 21: ...l min 49 kW 70 C 45 C 36 l min 38 l min 89 kW 50 C 30 l min 34 l min 84 kW 55 C 25 l min 31 l min 78 kW 60 C 20 l min 28 l min 69 kW 80 C 45 C 38 l min 38 l min 93 kW 50 C 38 l min 42 l min 105 kW 55 C 32 l min 40 l min 100 kW 60 C 27 l min 38 l min 95 kW for a cold water temperature of 10 C reheating is not considered maximum flow rate 38 l min with pressure drop of the DHW module of 1000 mbars h...

Страница 22: ...list NOTICE Complaints and requests orders of spare parts will only be processed with information on the serial number The serial number can be found in the upper right corner of the support sheet in the station 9 1 Spare parts primary circuit FriwaMini with circulation 6404631 ...

Страница 23: ...9 Spare parts specialist 2015 12 996404631 mub en V02 23 9 2 Spare parts primary circuit FriwaMini with circulation 6404631 ...

Страница 24: ...dary circuit circulation external thread flat sealing Operating data Max admissible pressure primary 3 bars secondary 10 bars Operating temperature 2 95 C Kvs value primary 2 45 Kvs value secondary 2 22 Equipment Check valve 1 x 200 mm wc Primary secondary pump High efficiency pump with PWM control 4 70 Watt Heat exchanger 30 plates Flow rate sensor 1 x VFS 2 40 l min Temperature sensor 2 x Pt1000...

Страница 25: ...0 Technical data 2015 12 996404631 mub en V02 25 10 1 Dimensional drawing FriwaMini with circulation 10 2 Pressure drop characteristics FriwaMini with circulation Pressure m wc Pressure kPa Flow rate m h ...

Страница 26: ... installed components Return distribution set Miscellaneous Are both circuits correctly flushed and deaerated no noises in the pump Vented Are all the shutoff devices in the cold water line open Open Is there a pressure of at least 1 5 bars in the primary circuit Checked Is there a pressure of at least 2 5 bars in the secondary circuit Checked Is the potential equalisation guaranteed according to ...

Страница 27: ...11 Commissioning report 2015 12 996404631 mub en V02 27 ...

Страница 28: ...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 996404631 mub en V02 2015 12 ...

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