oventrop Regumaq X-25 Operating Instructions Manual
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oventrop Regumaq X-25 Operating Instructions Manual

Fresh water station
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Fresh water station "Regumaq X-25"
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  • Page 1 Valves, controls + systems Fresh water station “Regumaq X-25” Operating instructions...

  • Page 3: Table Of Contents

    “Regumaq X-25” Contents Content Page General information ........................6 Validity of the operating instructions ..................6 Type plate ..........................6 Extent of supply ........................6 Contact ............................6 Declaration of conformity ......................6 Used symbols ..........................6 Safety-related information ......................7 Correct use ..........................7 2.2 Modifications to the product .....................7 Warnings ...........................7 Safety notes ..........................8...
  • Page 4 Contents “Regumaq X-25” Non-return check valve Aquastrom R .......................... 21 Strainer ........................... 21 4.7 Water filter Aquanova Magnum ....................21 Grounding clip ........................21 4.9 Connection fittings ......................... 21 Transport and storage......................22 Installation ..........................22 Advice regarding installation ....................22 Wall attachment of the station....................23 6.2.1...
  • Page 5 “Regumaq X-25” Contents Maintenance ..........................45 10.1 Maintenance ..........................45 10.1.1 Leak check (visual inspection) ....................... 45 10.1.2 System pressure check .......................... 45 10.1.3 Functional check of the safety valves (potable water circuit) ..............45 10.1.4 Water sampling ............................45 10.1.5 Actuation of the four isolating ball valves ....................45 10.1.6 Electronic components and plug-in connections .................. 45 10.1.7 Functional check of the check valve of the circulation set ..............

  • Page 6: General Information

    Technical services Telephone: +49 (0) 29 62 82-234 Declaration of conformity Oventrop GmbH & Co. KG hereby declares that this product complies with the basic requirements and other relevant provisions of the EC Directives concerned. The declaration of conformity can be obtained from the manufacturer.

  • Page 7: Safety-Related Information

    “Regumaq X-25” Safety-related information Safety-related information Warnings Each warning contains the following elements: Correct use Warning symbol SIGNAL WORD Operating safety is only guaranteed if the product is Type and source of danger! used correctly. Possible consequences if the danger occurs or The station is an electronically controlled product the warning is ignored.

  • Page 8: Safety Notes

    Safety-related information “Regumaq X-25” Safety notes 2.4.4 Risk of scalding due to hot water The setting or a defect of the controller may entail a rise The product is manufactured in accordance with the in the hot water temperature at the draw-off points up latest technical standards and is safe to use.

  • Page 9: Damage To Property Due To An Unsuitable Installation Location

    “Regumaq X-25” Safety-related information 2.4.10 Damage to property due to an unsuitable installation location f Do not install the product in locations prone to frost. f Do not install the product in wet or damp environ- ments. f Do not install the product in spaces with corro- sion-enhancing ambient air.

  • Page 10: Technical Description

    Technical description “Regumaq X-25” Technical description Construction Illust. 1: “Regumaq X-25” 138112581-V01.10.2019...
  • Page 11 “Regumaq X-25” Technical description Temperature sensor for potable hot water S2 Temperature sensor for storage cylinder circuit S1 Heat exchanger Fill and drain ball valve for potable cold water Flow sensor for potable water circuit VTY 20 Fill and drain ball valve for storage cylinder circuit return...

  • Page 12: Functional Description

    This transfers At a fi xed potable water temperature of 60 °C and a more heat to the potable water circuit accordingly. storage cylinder temperature of 75 °C, the hot potable System diagram water discharge capacity can vary between 1 and 25 l/min. This is provided by means of the con- System diagram with one “Regumaq X-25” fresh water station Illust. 2: 138112581-V01.10.2019...
  • Page 13 “Regumaq X-25” Technical description System diagram with two “Regumaq X-25” fresh water stations Illust. 3: Heat generator Buffer storage cylinder “Regumaq X-25” “Aquastrom R” non-return check valve “Aquanova Magnum” water fi lter Storage cylinder circuit supply Storage cylinder circuit return Potable cold water (PWC) Potable hot water (PWH) Direction of fl ow When operating several “Regumaq X-45”...

  • Page 14: Example Of The Application

    Technical description “Regumaq X-25” Example of the application Design temperatures: 60°C hot water; 75°C flow temperature storage cylinder circuit (design according to DIN 1988-300) Number Residential Hospital Hotel Communal shower Buffer of “X-45” building room room facility storage quired stations cylinder boiler 1 Washbasin (WB) 1 WB 1 WB Number of showers at 6 l/ volume capacity 1 Kitchen sink (KS) min 60° PWH 1 Shower (S) (Simultaneity factor 80 %)
  • Page 15 “Regumaq X-25” Technical description Controller Heat exchanger Plates: Stainless steel 1.4401 Inputs 3x Pt1000 temperature copper brazed Connections: Stainless sensors, 1x Sika flow steel 1.4404 sensor Brazing material: Copper Outputs 1x solid-state relay and Heat exchanger Plates: Stainless steel 1x PWM output 1.4401...

  • Page 16: Front View

    Technical description “Regumaq X-25” 3.5.1 Front view Illust. 4: “Regumaq X-25” dimensions in mm (front) 138112581-V01.10.2019...

  • Page 17: Side View

    “Regumaq X-25” Technical description 3.5.2 Side view Illust. 5: “Regumaq X-25” dimensions in mm (side) 138112581-V01.10.2019...

  • Page 18: Wall Bracket

    Technical description “Regumaq X-25” 3.5.3 Wall bracket Illust. 6: “Regumaq X-25” dimensions in mm (wall bracket) 138112581-V01.10.2019...

  • Page 19: Controller Terminal Assignment

    “Regumaq X-25” Technical description Controller terminal assignment IP 22 – 240 V Paul-Oventrop-Straße 1 50-60 Hz D-59939 Olsberg R1|1 (1) A 240 V~ X-25 VN: 1.0 L' PE N Sensors Sika LIN-Bus PE N R1 PE N L' PE N Illust.

  • Page 20: Accessories And Spare Parts

    If components (such as pumps or electrical immersion You can fi nd the current accessories and spare heater) with a rated current exceeding 1 ampere are part list on our homepage. connected to the controller, this may cause damage to the controller. In this case, the Oventrop load relay must www.oventrop.com/qr/1381125 be inserted between. CAUTION Risk of injury from incorrect accessories and spare parts! Illust.

  • Page 21: Non-Return Check Valve Aquastrom R

    “Regumaq X-25” Accessories and spare parts Non-return check valve Water fi lter Aquanova Magnum Aquastrom R Size Connection Item no. DN 20 G 1 M x G 1 M 4208706 DN 25 G 1¼ M x G 1¼ M 4208708...

  • Page 22: Transport And Storage

    Transport and storage “Regumaq X-25” Transport and storage Installation Temperature 0 – 40 °C DANGER range Danger to life due to electric current! Relative air Max. 95 % humidity Danger to life due to contact with live compo- nents. Particles Store dry and free from dust...

  • Page 23: Wall Attachment Of The Station

    “Regumaq X-25” Installation 6.2.2 Installation NOTICE 1. Pull the product out of the cardboard. Damage to property caused by system 2. Lift off the upper shell (see Illust. 12) overpressure! The safety valve only protects the potable water circuit within the fresh water station. f Also equip the potable water system with an additional (without isolating facility) safety valve in accordance with DIN EN 806-2.
  • Page 24 Installation “Regumaq X-25” Illust. 14: Use of the wall bracket as a drilling jig 6. Drill the corresponding holes (ø 8 mm) and insert the dowels. 7. Screw the wall bracket into place with two 10x60 mm screws and washers (supplied). 8. Mount the product assembly on the wall bracket. Ensure that the bracket audibly locks into place.

  • Page 25: Pipework

    “Regumaq X-25” Installation Pipework All four connections for the incoming and outgoing pipework feature G1 dimensions (fl at sealing male thread). Illust. 16: Functional description Potable hot water return Potable cold water supply (16) Storage cylinder circuit return (18) Storage cylinder circuit supply (24) Bracket for discharge elbow for water sampling valve 138112581-V01.10.2019...
  • Page 26 - When operating the fresh water station with Oventrop buffer storage cylinders in the “Hydrocor HP” series, be sure to connect the “storage cylinder circuit supply” to the central connection pipe.

  • Page 27: Protective Equipotential Bonding/Grounding

    “Regumaq X-25” Installation Protective equipotential bonding/Grounding Protective equipotential bonding ensures a connection with good electrical conductivi- ty between the exposed conductive parts of electrical equipment and the main equipoten- tial bonding rail (main grounding rail) of the building. (In accordance with DIN VDE 0100, elements are exposed conductive parts, which – in contrast to “live parts” – can only be live as a result of a fault.)

  • Page 28: Commissioning

    Commissioning “Regumaq X-25” Commissioning CAUTION Risk of burns due to hot components! Filling and bleeding of the storage cylinder circuit Any unprotected contact with hot components may lead to burns. f Wear safety gloves. NOTICE Risk of damage due to pressure surge! Sudden fi lling of the station can cause dam- age, for instance to the sensors or sealing...

  • Page 29: Filling And Bleeding Of The Potable Water Circuit

    “Regumaq X-25” Commissioning Filling and bleeding of the potable NOTICE water circuit Risk of damage due to pressure surge! Sudden fi lling of the station can cause dam- age, for instance to the sensors or sealing points. f Always open and close ball valves slowly. 1. Open the isolating ball valve for potable hot water slowly (see position (7) in Illust. 21 and in Illust. 1 on...

  • Page 30: Power Supply Via Pre-Assembled Power Supply Cable

    Commissioning “Regumaq X-25” 7.3.1 Power supply via pre-assembled power 1. Carefully remove the controller from the lower shell supply cable as shown in Illust. 22 NOTICE A fused shock-proof socket must be available at the installation site. Damage to the electrical lines and con-...
  • Page 31 “Regumaq X-25” Commissioning 3. Remove the screw (see position (2) in Illust. 24) and put it to one side. 4. Slide the connection panel cover (see position (1) in Illust. 24) upwards until it audibly locks into place. 5. Fold down the supply pipe cover (see position (3) in Illust. 24). 6. Guide the power line through the designated open- ing in the cover. 7. Establish the electrical connections according to the terminal allocation (see Illust. 7 on page 19). 8. Secure the power line in place with a suitable cable tie to relieve tension.

  • Page 32: Configuration Of The Circulation Function (Optional)

    Commissioning “Regumaq X-25” Confi guration of the circulation 7.4.1.1 Deactivation of the circulation function (optional) The circulation function is deactivated at the factory (see Illust. 27). f Set DIP switch 1 to “OFF” 1 2 3 4 Illust. 27: Deactivated circulation 7.4.1.2 Activation of the circulation f Set DIP switch 1 to “ON”...

  • Page 33: Handover To The User

    “Regumaq X-25” Commissioning 7.4.2.4 Fluid temperature up to 60°C • The pump is switched on when the measured value reaches 6 kelvin below the set nominal value. f Set DIP switch 4 to “OFF” • The pump is switched off when the measured value reaches 2 kelvin below the set nominal value.

  • Page 34: Operation

    Operation “Regumaq X-25” Operation CAUTION Risk of scalding due to excessively hot po- Setting of the nominal hot water table water at the draw-off points! temperature A controller setting or defect may cause the hot water temperature at the draw-off points to rise to roughly the same temperature as the storage cylinder water.

  • Page 35: Anti-Lock Protection

    “Regumaq X-25” Operation Anti-lock protection CAUTION The anti-lock protection serves to prevent the primary Risk of scalding due to excessively hot po- pump from seizing up after extended periods of down- table water at the draw-off points! time. In emergency operation, the primary pump...
  • Page 36 Operation “Regumaq X-25” DANGER Danger to life due to electric current! Danger to life due to contact with live compo- nents. f Completely disconnect the product from the power supply. f Check that no voltage is present. f Secure the product against switching back f The product may only be installed in dry indoor areas.

  • Page 37: Troubleshooting

    “Regumaq X-25” Troubleshooting Troubleshooting Troubleshooting table MALFUNCTION CAUSE REMEDY Press a button to activate the dis- The controller is in standby mode. play. The power supply to the controller is The display is permanently off. Connect the power supply. interrupted.

  • Page 38: Nominal Resistances Of The Temperature Sensors

    Troubleshooting “Regumaq X-25” MALFUNCTION CAUSE REMEDY The LED on the controller S1, Sensor storage cylinder supply Replace the sensor. flashes red. defective S2, Sensor hot water temperature An error code appears on the Replace the sensor. defective display. S3, Sensor cold water/circulation The error message is au- Replace the sensor.

  • Page 39: Decalcification Of The Heat Exchanger

    “Regumaq X-25” Troubleshooting Decalcifi cation of the heat NOTICE exchanger Risk of damage due to pressure surge! If, during operation, you notice that the potable water is Sudden fi lling of the station with water may no longer heated to the required temperature although lead to damage, for instance to the sensors or the controller does not display a fault and you did not sealing points.

  • Page 40: Cleaning Of The Heat Exchanger (Storage Cylinder Circuit Side)

    Troubleshooting “Regumaq X-25” Flushing with a lye 5. Close the isolating ball valve for the storage cylinder circuit supply (see position (18) in Illust. 1 on page 11. Neutralise the potable water circuit by fl ushing with 10). a lye. 6. Unscrew the caps of the fi ll and drain ball valves 12. Close the upper fi ll and drain ball valve. (positions (6) and (19) in Illust. 1 on page 10). 13. Remove the fl ushing hoses. 7. Connect a fl ushing hose to each of the fi ll and drain ...

  • Page 41: Decalcification Of The Dismounted Heat Exchanger

    “Regumaq X-25” Troubleshooting 9.3.3 Decalcifi cation of the dismounted heat exchanger CAUTION Risk of scalding due to hot fl uids! If the station has been in operation, there is a risk of scalding due to the unintentional dis- charge of hot water or steam.

  • Page 42: Cleaning Of The Flow Sensor

    Troubleshooting “Regumaq X-25” Cleaning of the fl ow sensor 9.4.1 Required tools • 24, 37 and 38 mm spanner A breakdown has occurred if no potable hot water can be added at the draw-off points. This can be caused by • Fuse tongs J2 (e.g. EAN 4003773048534). a number of reasons as shown in the troubleshooting table in section 9.1 on page 37.
  • Page 43 “Regumaq X-25” Troubleshooting 15. Check whether the measuring turbine is free from extraneous substances and running smoothly once again. 16. If the cleaning process was successful, reinstall the system component by following this sequence in reverse order. If the measuring turbine is still...
  • Page 44 Troubleshooting “Regumaq X-25” Illust. 39: Removal of the sleeve with measuring tur- bine Illust. 41: Correct positioning of the measuring turbine 3. Carefully push the sleeve with measuring turbine 1. Reinstall the sleeve with measuring turbine back in out by hand in the direction of fl ow until it moves the system component by following this sequence freely.

  • Page 45: Maintenance

    “Regumaq X-25” Maintenance 10. Maintenance 10.1.3 Functional check of the safety valves (potable water circuit) Check the function of the safety valves at six-month CAUTION intervals in accordance with DIN EN 806-5. Risk of scalding due to hot fl uids! 10.1.4 Water sampling If the station has been in operation, there is a...

  • Page 46: Replacement Of The Potable Water Filter Insert

    Advice for the user “Regumaq X-25” 10.1.8 Replacement of the potable water fi lter CAUTION insert Risk of scalding due to excessively hot po- As part of the maintenance process, also take account table water at the draw-off points! of the potable water fi lter installed in the cold water supply for the station.

  • Page 47: Removal And Disposal

    “Regumaq X-25” Removal and disposal 12. Removal and disposal f Remove the station.  The components of the station can be disposed of separately. If the fresh water station reaches the end of its useful life or has suffered an irreparable defect, it must be dis- 12.2 Disposal...

  • Page 48: Illustration Index

    “Regumaq X-25” 13. Illustration index Illust. 1: “Regumaq X-25” ............................. 10 Illust. 2: System diagram with one “Regumaq X-25” fresh water station ............12 Illust. 3: System diagram with two “Regumaq X-25” fresh water stations ............13 Illust. 4: “Regumaq X-25” dimensions in mm (front) ................... 16 Illust. 5:...
  • Page 49 “Regumaq X-25” Illustration index Illust. 48: Storage cylinder circuit return temperature – potable water heating to 50 °C ........52 Illust. 49: Storage cylinder circuit volume flow – potable water heating to 55 °C ..........53 Illust. 50: Storage cylinder circuit return temperature – potable water heating to 55 °C ........53 Illust. 51: Storage cylinder circuit volume flow – potable water heating to 60 °C ..........54 Illust. 52: Storage cylinder circuit return temperature – potable water heating to 60 °C ........54 Illust. 53: Storage cylinder circuit volume flow – potable water heating to 65 °C ..........55 Illust. 54: Storage cylinder circuit return temperature – potable water heating to 65 °C ........55 Illust. 55: Storage cylinder circuit volume flow – potable water heating to 70 °C ..........56 Illust. 56: Storage cylinder circuit return temperature – potable water heating to 70 °C ........56 Illust. 57:...

  • Page 50: Appendix

    Appendix “Regumaq X-25” 14. Appendix 14.1 Characteristic line for Wilo circulation pump H / m ∆p / kPa Illust. 42: Characteristic line for Wilo circulation pump (storage cylinder circuit) Q / m³/h Pressure loss during hot potable water separartion - Storage cylinder circuit -...

  • Page 51: Characteristic Lines For Potable Water Heating

    “Regumaq X-25” Appendix 14.2 Characteristic lines for potable water heating 14.2.1 Heating of potable water from 10 °C to 45 °C Performance data according to SPF test procedure. Volume flow storage cylinder circuit at different flow temperatures - Heating of potable water from 10 °C to 45 °C - 45°C...

  • Page 52: Heating Of Potable Water From 10 °C To 50 °C

    Appendix “Regumaq X-25” 14.2.2 Heating of potable water from 10 °C to 50 °C Performance data according to SPF test procedure. Volume flow storage cylinder circuit at different flow temperatures - Heating of potable water from 10 °C to 50 °C - 60°C...

  • Page 53: Heating Of Potable Water From 10 °C To 55 °C

    “Regumaq X-25” Appendix 14.2.3 Heating of potable water from 10 °C to 55 °C Performance data according to SPF test procedure. Volume flow storage cylinder circuit at different flow temperatures - Heating of potable water from 10 °C to 55 °C - 65°C...

  • Page 54: Heating Of Potable Water From 10 °C To 60 °C

    Appendix “Regumaq X-25” 14.2.4 Heating of potable water from 10 °C to 60 °C Performance data according to SPF test procedure. Volume flow storage cylinder circuit at different flow temperatures - Heating of potable water from 10 °C to 60 °C - 60°C...

  • Page 55: Heating Of Potable Water From 10 °C To 65 °C

    “Regumaq X-25” Appendix 14.2.5 Heating of potable water from 10 °C to 65 °C Performance data according to SPF test procedure. Volume flow storage cylinder circuit at different flow temperatures - Heating of potable water from 10 °C to 65 °C - 65°C...

  • Page 56: Heating Of Potable Water From 10 °C To 70 °C

    Appendix “Regumaq X-25” 14.2.6 Heating of potable water from 10 °C to 70 °C Performance data according to SPF test procedure. Volume flow storage cylinder circuit at different flow temperatures - Heating of potable water from 10 °C to 70 °C - 80°C...

  • Page 57: Heating Of Potable Water From 10 °C To 75 °C

    “Regumaq X-25” Appendix 14.2.7 Heating of potable water from 10 °C to 75 °C Performance data according to SPF test procedure. Volume flow storage cylinder circuit at different flow temperatures - Heating of potable water from 10 °C to 75 °C - 90°C...

  • Page 58: Eu Declaration Of Conformity

    Appendix “Regumaq X-25” 14.3 EU Declaration of conformity 138112581-V01.10.2019...

  • Page 59: Advice Regarding Corrosion Protection

    Fresh water station “Regumaq X-25” Advice regarding corrosion protection The materials used in the Oventrop fresh water and brazing materials (copper, nickel or stainless steel). dwelling stations are selected and processed in accor- It is important to note that interactions may occur dance with strict quality specifications. The plate mate- between certain substances in water that can cause rial (stainless steel 1.4401) used in the heat exchanger...
  • Page 60 Further advice regarding corrosion protection NOTICE High fluid temperatures (> 60 °C) increase the risk of corrosion f Do not set the hot water temperature or the heating water flow temperature too high. NOTICE Long periods of stagnation increase the risk of corrosion f Flush the system on a regular basis – either manually or automatically – if regular long periods of stagna- tion are to be expected (VDI/DVGW 6023).

  • Page 61: Handover Report

    Fresh water station “Regumaq X-25” Handover report Date: Installation site address / building User address Installation company address “Regumaq X-25” serial number Tick as appropriate or Comments/settings If there are any steps you do not complete enter a value/number or if you respond with ‘No’, please explain in...
  • Page 62 Tick as appropriate or Comments/settings If there are any steps you do not enter a value/number complete or if you respond with ‘No’, please explain in the comments field! Controller settings Which potable water temperature °C was set? Was the circulation activated (see ¨ ¨...

  • Page 63: Maintenance Report

    Fresh water station “Regumaq X-25” Maintenance report Date: Installation site address / building User address Installation company address “Regumaq X-25” serial number Tick as appropriate or Comments/settings If there are any steps you do not enter a value/number complete or if you respond with ‘No’,...
  • Page 64 Tick as appropriate or Comments/settings If there are any steps you do not enter a value/number complete or if you respond with ‘No’, please explain in the comments field! Was a functional check carried out ¨ ¨ to review performance (see op- erating instructions for functional check)? Were all ball valves checked for ¨...
  • Page 65 Instruction/Handover The installer has informed the user about the maintenance work that has been completed. ¨ The installer has informed the user about potential modifications and repair work. ¨ The installer has provided the user with the necessary documents. ¨ Information on correct operation of potable water systems: - Stagnation must be avoided; a regular exchange of the potable water must be ensured - TPWH must be maintained at >= 60 °C at the hot water outlet - The circulation system must be designed in such a way that the potable water temperature does not fall more than 5 K...
  • Page 68 OVENTROP GmbH & Co. KG Paul-Oventrop-Straße 1 59939 Olsberg GERMANY 138112581 V01.10.2019 www.oventrop.com...

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