Paul NOVUS 300 Service Instructions Manual
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Paul NOVUS 300 Service Instructions Manual

Mechanical ventilation heat recovery unit
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Service instructions for qualified personnel
Mechanical Ventilation Heat Recovery Unit
NOVUS (F) 300 / 450
(for units from serial no. 15000-2)
Version: 2.0_10/2015

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Summary of Contents for Paul NOVUS 300

  • Page 1 Service instructions for qualified personnel Mechanical Ventilation Heat Recovery Unit NOVUS (F) 300 / 450 (for units from serial no. 15000-2) Version: 2.0_10/2015...

  • Page 2: Table Of Contents

    Table of Contents Table of Contents Table of Contents .............................. 2 Type plate .............................. 3 Principal configuration of the system ....................4 Replacement of the filters ........................5 Replacement of the filters of the device ....................5 Resetting the filter run-time ......................... 7 Replacement of the heat exchanger .....................

  • Page 3: Type Plate

    The type plate is located on the side of the air connections of the HRU. The type plate must be permanently attached to the product. Type plate NOVUS 300 Type plate NOVUS F 300...

  • Page 4: Principal Configuration Of The System

    Principal configuration of the system Principal configuration of the system The basic configuration of the system is universally valid and does not represent the system outline of the project-related ventilation plant! It is designed for representation of the plant- specific system structure for sensors and ventilation equipment. General system outline with NOVUS with integrated defroster, version LEFT...

  • Page 5: Replacement Of The Filters

    Replacement of the filters Replacement of the filters 3.1 Replacement of the filters of the device Switch the device to standby mode or disconnect it from the power supply. Pull the maintenance flap with the magnetic clamps from the front plate. Pull the filter cover cap out of the filter slide-in compartment.
  • Page 6 Replacement of the filters Pull the filters out of the filter slide-in compartments by means of the filter strap. Package the filters in a sealed bag and put this in the residual waste. Push the new filters in the filter slide-in compartments with regard to the flow direction. The filters are marked with an arrow according to the required flow direction.

  • Page 7: Resetting The Filter Run-Time

    Replacement of the filters Insert the filter cover caps. Make sure that the recessed grips of both filter cover caps face each other in the filter slide-in compartment. recessed grips Close the inspection opening of the front hood with maintenance flap. Re-establish the mains connection.
  • Page 8 Replacement of the filters Buttons Select the submenu Filter by touching the Navigation buttons Navigation and confirm by pressing the Enter button. Button By touching the Checkmark button, resetting of the filter run- Checkmark time is selected. Button Confirm by pressing the Enter button. Enter Button By touching the Cancel / back button, exit the menu levels until...

  • Page 9: Replacement Of The Heat Exchanger

    Replacement of the heat exchanger Replacement of the heat exchanger Disconnect the device from the power supply. Pull the maintenance flap with the magnetic clamps from the front plate.
  • Page 10 Replacement of the heat exchanger According to the sequence of steps, pull the front hood in the area of the two spring shackles (on the front bottom side of the device) off the device by approx. 5 cm first. Then, slide the front hood towards the supply air duct connections out of the slotted openings (on the front surface of the device).
  • Page 11 Replacement of the heat exchanger Now pull the heat exchanger by means of the strap from the EPP housing. Spray silicone spray on the saeals of the heat exchanger.
  • Page 12 Replacement of the heat exchanger On the bottom of the heat exchanger is a condensate pan with 2 cut-outs. When inserting the heat exchanger into the unit, please assure that the two cut-outs of the condensate pan point to the condensate outlet.

  • Page 13: Replacement Of The Integrated Defroster

    Replacement of the integrated defroster Replacement of the integrated defroster Disconnect the device from the power supply. Apply for work on the electronics an ESD wrist strap. Pull the maintenance flap with the magnetic clamps from the front plate.
  • Page 14 Replacement of the integrated defroster According to the sequence of steps, pull the front hood in the area of the two spring shackles (on the front bottom side of the device) off the device by approx. 5 cm first. Then, slide the front hood towards the supply air duct connections out of the slotted openings (on the front surface of the device).
  • Page 15 Replacement of the integrated defroster Now pull the heat exchanger by means of the strap from the EPP housing. Remove the electronics cover, open the 6 screws.
  • Page 16 Replacement of the integrated defroster Slide the PVC pipe forwardly out of the EPP housing. Disconnect the power cable of the PTC elementes from the BUS thermostat.
  • Page 17 Replacement of the integrated defroster 10. Remove the power cabel out of the cable guide (groove). 11. Loosen the two screws on the PTC element. 12. Push together the PTC element at the rear part and remove it out of the EPP hosing.
  • Page 18 Replacement of the integrated defroster 13. Insert the new PTC element. 14. Afterwards, mount all parts in reverse order. When inserting the heat exchanger into the unit, please assure that the two cut-outs of the condensate pan point to the condensate outlet (see point 4.). 15.

  • Page 19: Replacement Of The Master Board, Slave Board And Bus Thermostat

    Replacement of the master board, slave board and BUS thermostat Replacement of the master board, slave board and BUS thermostat Read the program with a PC or write down the settings of the TFT. Disconnect the device from the power supply. Apply for work on the electronics an ESD wrist strap.
  • Page 20 Replacement of the master board, slave board and BUS thermostat According to the sequence of steps, pull the front hood in the area of the two spring shackles (on the front bottom side of the device) off the device by approx. 5 cm first. Then, slide the front hood towards the supply air duct connections out of the slotted openings (on the front surface of the device).
  • Page 21 Replacement of the master board, slave board and BUS thermostat Remove the cables from the master board and remove it from the device. Install the new master board in the device. Be sure to install the cables according the circuit diagram (see appendix).
  • Page 22 Replacement of the master board, slave board and BUS thermostat 11. Set the correct device version using the DIP switches on the new fan slave board. DIP 1 = left device version „off“/ right device version „on“ DIP 2 = „on“ The device version can be found on the type plate of the unit.
  • Page 23 Replacement of the master board, slave board and BUS thermostat 12. Remove the cables from the BUS thermostat and remove it from the device. 13. Install the new BUS thermostat in the device. Be sure to install the cables according the circuit diagram (see appendix).
  • Page 24 Important note! Make sure that you install the correct board in the respective device. NOVUS 300 Art.-Nr. 524002280 Master board NOVUS 300 RD (black bar on type plate) Art.-Nr. 521014120 Fan slave board RD (black bar on type plate) NOVUS 450 Art.-Nr.

  • Page 25: Replacement Of The Fan

    Replacement of the fan Replacement of the fan Disconnect the device from the power supply. Apply for work on the electronics an ESD wrist strap. Pull the maintenance flap with the magnetic clamps from the front plate.
  • Page 26 Replacement of the fan According to the sequence of steps, pull the front hood in the area of the two spring shackles (on the front bottom side of the device) off the device by approx. 5 cm first. Then, slide the front hood towards the supply air duct connections out of the slotted openings (on the front surface of the device).
  • Page 27 Replacement of the fan Remove the cable of the fan from the slave board. Pull the EPP control carrier out of the device.
  • Page 28 Replacement of the fan Pull the fan with a pliers out of the device. Apply the sealant (NeoFermit) on the fan housing of the new fan.
  • Page 29 Replacement of the fan 10. Insert the fan into the housing of the ventilation device and remove the excess sealant. 11. Mount all parts in reverse order. 12. Re-establish the mains connection.

  • Page 30: Replacement Of The Bypass Motor

    Replacement of the bypass motor Replacement of the bypass motor Disconnect the device from the power supply. Apply for work on the electronics an ESD wrist strap. Pull the maintenance flap with the magnetic clamps from the front plate.
  • Page 31 Replacement of the bypass motor According to the sequence of steps, pull the front hood in the area of the two spring shackles (on the front bottom side of the device) off the device by approx. 5 cm first. Then, slide the front hood towards the supply air duct connections out of the slotted openings (on the front surface of the device).
  • Page 32 Replacement of the bypass motor Remove the cables of the left fan from the slave board. Pull the EPP control carrier out of the device.
  • Page 33 Replacement of the bypass motor Pull the fan with a pliers out of the device. Pry using a screw driver the EPP bypass cover out of the device.
  • Page 34 Replacement of the bypass motor 10. Pull the bypass motor out of the device. 11. Remove the plug of the bypass motor. 12. Open the screws to replace the bypass motor. 13. Place the bypass flap and the EPP bypass cover in the ventilation device.
  • Page 35 Replacement of the bypass motor 14. Apply the sealant (NeoFermit) on the fan housing of the new fan. 15. Insert the fan into the housing of the ventilation device and remove the excess sealant.
  • Page 36 Replacement of the bypass motor 16. Mount all parts in reverse order. 17. Re-establish the mains connection.

  • Page 37: Installation Of A Condensate Drain

    Installation of a condensate drain Installation of a condensate drain Disconnect the device from the power supply. Remove the pre-cut hole with a screwdriver.
  • Page 38 Installation of a condensate drain Drill with a 40 mm drill bit a hole in the EPP housing. Apply the sealant to the inlet.
  • Page 39 Installation of a condensate drain Insert the outlet into the device and fix it with the corresponding screw. Remove the excess sealant. Re-establish the mains connection.

  • Page 40: Messages, Errors And Error Handling

    Messages, errors and error handling 10 Messages, errors and error handling The device control is equipped with an internal system for error detection. The visualisation of the messages and the error forecast is made according to the display possibilities of the connected control panel.

  • Page 41: Visualisation Of Errors With The Tft Touch Panel

    Messages, errors and error handling The following LED combinations for the display of the error coding marked with “x” apply: LED combinations Error message Possible cause Supply air temperature too low Supply air temperature < setpoint No end position, by-pass not Error by-pass working Software versions of the...
  • Page 42 Messages, errors and error handling The following plain text displays of the error message are visualised: Message on display Possible cause Control / Action Error sensor 1 Sensor break or short circuit Check or replace sensor temperature sensor Version LEFT T1 Version RIGHT T3 Error sensor 2 Sensor break or short circuit...

  • Page 43: Error Handling

    Error handling 11 Error handling 11.1 Error fan WARNING! Error fan Hall 1 Hall 2 Do not touch the board for under 230 V power supply live components! Fan wheel damaged? Disconnect the power supply. Restart the device Measure 230 V power supply Replace O.K.? the fuse...

  • Page 44: Error Temperature Sensor

    Error handling 11.2 Error temperature sensor WARNING! Error temperature sensor T1 / T2 / T3 / T4 / T5 / T6 / T7 Do not touch the board for under 230 V power supply live components! Sensor connected according to circuit diagram? Mount sensor or Check...

  • Page 45: Communication Error Defroster, Back Heater, Geothermal Heat Exchanger

    Error handling 11.3 Communication error defroster, back heater, geothermal heat exchanger WARNING! Communication error defroster backup heater/GHX regulating flap Do not touch the board for under 230 V power supply live components! Check system and menu, if accidentally released / check DIP switch in BUS thermostat Restart O.K.?

  • Page 46: Communication Error Fan Slave

    Error handling 11.4 Communication error fan slave WARNING! Communication error fan slave Do not touch the board for under 230 V power supply live components! Check Cat 5 cable between master and slave O.K.? Replace Replace slave connection...

  • Page 47: Tft Without Communication

    Error handling 11.5 TFT without communication WARNING! TFT without communication black screen with text at Do not touch the board the bottom left 2 … for under 230 V power supply live components! No communication with device Check cable and connector O.K.? Rewire and...

  • Page 48: Error Bypass With Tft

    Error handling 11.6 Error bypass with TFT Error bypass WARNING! with TFT Do not touch the board for under 230 V power supply live components! Bypass in menu setup and menu settings released? Release Check bypass temperatures in menu settings bypass temperatures O.K? Change...

  • Page 49: Error Intake Air Too Low

    Error handling 11.7 Error intake air too low Error intake air WARNING! too low Do not touch the board for under 230 V power supply live components! freeze protection available? Mount freeze Check protection preheater by cooling the intake air sensor (sensor under intake air filter) with ice spray, measure power supply 230 V...

  • Page 50: Error Supply Air Too Low

    Error handling 11.8 Error supply air too low Error supply air WARNING! too low Do not touch the board for under 230 V power supply live components! Check DIP switch S2-1 left right version O.K.? Change Check DIP switch Position bypass flap (see error bypass) O.K.?

  • Page 51: Fan Too Noisy

    Error handling 11.9 Fan too noisy Fan too WARNING! noisy Do not touch the board for under 230 V power supply live components! Filter dirty? Change filter Controlling the pipeline for obstruction (intake and exhaust air grille) O.K.? Check fan Eliminate (see error obstruction...

  • Page 52: Heat Recovery Too Low

    Error handling 11.10 Heat recovery too low WARNING! Heat recovery too low Do not touch the board for under 230 V power supply live components! Check temperature sensor O.K.? Use other Check sensor temperature measuring point (directly at device duct socket) O.K.? Measure directly at device duct socket...

  • Page 53: Failure Or Problems Without A Message

    Error handling 11.11 Failure or problems without a message Below is an overview of failure or problems are shown without a message. Problem / failure Reason Control / Action Everything out Power supply Check the fuse at the control board. Is the fuse O.K., than the board is faulty.

  • Page 54: Appendix

    Appendix Appendix Appendix 1 Circuit diagram NOVUS...

  • Page 55: Appendix 2 Circuit Diagram Novus With Integrated Defroster

    Appendix Appendix 2 Circuit diagram NOVUS with integrated defroster...

  • Page 56: Appendix 3 Terminal Scheme Of Through Terminal X10

    Appendix Appendix 3 Terminal scheme of through terminal X10...

  • Page 57: Notes

    Notes Notes...
  • Page 58 PAUL Wärmerückgewinnung GmbH August-Horch-Str. 7 08141 Reinsdorf Deutschland Tel.: +49 (0) 3 75 - 30 35 05 0 Fax: +49 (0) 3 75 - 30 35 05 55 info@paul-lueftung.de www.paul-lueftung.de Valid from 10/2015...

This manual is also suitable for:

Novus 450Novus f 300Novus f 450

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