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Replacement of the fan

26

4.

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).

5.

Remove the electronics cover, open the 6 screws.

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Содержание NOVUS 300

Страница 1: ...Version 2 0_10 2015 Service instructions for qualified personnel Mechanical Ventilation Heat Recovery Unit NOVUS F 300 450 for units from serial no 15000 2 ...

Страница 2: ...handling 40 10 1 Error signalling by means of the LED control panel 40 10 2 Visualisation of errors with the TFT touch panel 41 11 Error handling 43 11 1 Error fan 43 11 2 Error temperature sensor 44 11 3 Communication error defroster back heater geothermal heat exchanger 45 11 4 Communication error fan slave 46 11 5 TFT without communication 47 11 6 Error bypass with TFT 48 11 7 Error intake air ...

Страница 3: ...on the type plate are required for the safe use of the product and regarding service queries 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 Type plate NOVUS F 450 ...

Страница 4: ...n 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 ...

Страница 5: ...1 Switch the device to standby mode or disconnect it from the power supply 2 Pull the maintenance flap with the magnetic clamps from the front plate 3 Pull the filter cover cap out of the filter slide in compartment In order to do so put the finger in the respective recessed grip of the filter cover cap ...

Страница 6: ...his in the residual waste 6 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 Pollen filters are to be inserted in the filter slide in compartment of the intake air connection according the device version see type plate and marked with the symbol ...

Страница 7: ...n Explanation actions LED 10 Signalling Filter run time When the LED 10 lights up the filter run time has expired and a filter check shall be performed Key Reset Filter run time By pressing this key for at least 3 s the filter run time is reset The LED 10 goes off The timer starts the set filter run time Tab 1 Resetting the filter run time by means of the LED control panel 2 Resetting the filter r...

Страница 8: ...er button Button Checkmark By touching the Checkmark button resetting of the filter run time is selected Button Enter Confirm by pressing the Enter button Button Cancel back By touching the Cancel back button exit the menu levels until the start menu appears Table 2 Step sequence resetting the filter run time by means of the TFT touch panel ...

Страница 9: ...Replacement of the heat exchanger 9 4 Replacement of the heat exchanger 1 Disconnect the device from the power supply 2 Pull the maintenance flap with the magnetic clamps from the front plate ...

Страница 10: ...ice 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 4 Pull the EPP foam cover of the heat exchanger by means of the strap out of the foam housing In doing so grasp the strap on the fastening in the area of the recessed grips of the foam covering holder ...

Страница 11: ...Replacement of the heat exchanger 11 5 Now pull the heat exchanger by means of the strap from the EPP housing 6 Spray silicone spray on the saeals of the heat exchanger ...

Страница 12: ...pan point to the condensate outlet 8 Afterwards mount all parts in reverse order 9 Re establish the mains connection 10 Adjust the settings to the respective heat exchanger using the TFT display Menu Setup frost protection mode eco energy saving secure Moisture heat exchanger Menu Setup password 55555 frost protection mode temperatures Standard heat exchanger HRV eco 2 C save 0 C Enthalpy heat exc...

Страница 13: ... defroster 13 5 Replacement of the integrated defroster 1 Disconnect the device from the power supply 2 Apply for work on the electronics an ESD wrist strap 3 Pull the maintenance flap with the magnetic clamps from the front plate ...

Страница 14: ...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 5 Pull the EPP foam cover of the heat exchanger by means of the strap out of the foam housing In doing so grasp the strap on the fastening in the area of the recessed grips of the foam covering holder ...

Страница 15: ...Replacement of the integrated defroster 15 6 Now pull the heat exchanger by means of the strap from the EPP housing 7 Remove the electronics cover open the 6 screws ...

Страница 16: ...Replacement of the integrated defroster 16 8 Slide the PVC pipe forwardly out of the EPP housing 9 Disconnect the power cable of the PTC elementes from the BUS thermostat ...

Страница 17: ...the integrated defroster 17 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 1 2 ...

Страница 18: ... 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 Re establish the mains connection ...

Страница 19: ...e master board slave board and BUS thermostat 1 Read the program with a PC or write down the settings of the TFT 2 Disconnect the device from the power supply 3 Apply for work on the electronics an ESD wrist strap 4 Pull the maintenance flap with the magnetic clamps from the front plate ...

Страница 20: ...l 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 6 Remove the electronics cover open the 6 screws ...

Страница 21: ...m the device 8 Install the new master board in the device Be sure to install the cables according the circuit diagram see appendix 9 Remove the cables from the fan slave board and remove it from the device 10 Install the new fan slave board in the device Be sure to install the cables according the circuit diagram see appendix ...

Страница 22: ...e board and BUS thermostat 22 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 ...

Страница 23: ... 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 14 Be sure that the DIP switches are set correctly DIP 1 off DIP 2 off ...

Страница 24: ...e 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 524002290 Master board NOVUS 450 RD black bar on type plate Art Nr 521014120 Fan slave board RD black bar on type plate ...

Страница 25: ...of the fan 25 7 Replacement of the fan 1 Disconnect the device from the power supply 2 Apply for work on the electronics an ESD wrist strap 3 Pull the maintenance flap with the magnetic clamps from the front plate ...

Страница 26: ...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 5 Remove the electronics cover open the 6 screws ...

Страница 27: ...Replacement of the fan 27 6 Remove the cable of the fan from the slave board 7 Pull the EPP control carrier out of the device ...

Страница 28: ...Replacement of the fan 28 8 Pull the fan with a pliers out of the device 9 Apply the sealant NeoFermit on the fan housing of the new fan ...

Страница 29: ...Replacement of the fan 29 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 ...

Страница 30: ...pass motor 30 8 Replacement of the bypass motor 1 Disconnect the device from the power supply 2 Apply for work on the electronics an ESD wrist strap 3 Pull the maintenance flap with the magnetic clamps from the front plate ...

Страница 31: ... 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 5 Remove the electronics cover open the 6 screws ...

Страница 32: ...Replacement of the bypass motor 32 6 Remove the cables of the left fan from the slave board 7 Pull the EPP control carrier out of the device ...

Страница 33: ...Replacement of the bypass motor 33 8 Pull the fan with a pliers out of the device 9 Pry using a screw driver the EPP bypass cover out of the device ...

Страница 34: ...bypass motor 34 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 ...

Страница 35: ...Replacement of the bypass motor 35 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 ...

Страница 36: ...Replacement of the bypass motor 36 16 Mount all parts in reverse order 17 Re establish the mains connection ...

Страница 37: ...Installation of a condensate drain 37 9 Installation of a condensate drain 1 Disconnect the device from the power supply 2 Remove the pre cut hole with a screwdriver ...

Страница 38: ...Installation of a condensate drain 38 3 Drill with a 40 mm drill bit a hole in the EPP housing 4 Apply the sealant to the inlet ...

Страница 39: ...Installation of a condensate drain 39 5 Insert the outlet into the device and fix it with the corresponding screw 6 Remove the excess sealant 7 Re establish the mains connection ...

Страница 40: ...signalling Function meaning L1 L7 are lit No external release fan off L8 blinks Error sensor Fans are switched off by pass closes L8 L11 L12 blinks General error the error number is displayed in a binary form by means of the LEDs L1 to L7 see Tab 4 L11 blinks Error fan 1 Hall Fans are switched off by pass closes L12 blinks Error fan 2 Hall Fans are switched off by pass closes Tab 3 Error signallin...

Страница 41: ... the defroster Lack of BUS communication x x Communication error of the heater battery Lack of BUS communication x x x Comm error flap of the geothermal heat exchanger Lack of BUS communication x x x Comm error general Lack of BUS communication x x x x Heating does not switch off Error BUS thermostat x x x General control unit error Lack of BUS communication with control unit Tab 4 Overview binary...

Страница 42: ...stment of fan speed Error fan 2 Hall Version LEFT exhaust fan speed does not report Version RIGHT supply fan speed does not report manual adjustment of fan speed Error by pass No end position by pass not working Test by pass BUS version incompatible Software versions of the components not compatible Replace software versions Too many devices connected Too many components connected to the BUS Remov...

Страница 43: ...signal defective Measure 1 7 10 V signal O K Yes No Replacement of the master assume settings O K Check fuse of fan at master controller 5 A M O K No Replace the fuse restart Error fan Hall 1 Hall 2 Disconnect the power supply Fan wheel damaged No Restart the device Yes WARNING Do not touch the board for under 230 V power supply live components ...

Страница 44: ... 20 12 49 25 10 00 30 8 059 35 6 535 Tab 6 Resistance value Change fan slave T1 T4 or BUS thermostat T5 T7 Sensor connected according to circuit diagram Error temperature sensor T1 T2 T3 T4 T5 T6 T7 Yes Mount sensor or check settings Yes No O K Check resistance tab 6 O K Change the sensor No WARNING Do not touch the board for under 230 V power supply live components ...

Страница 45: ...ror defroster backup heater GHX1 regulating flap Check system and menu if accidentally released check DIP switch in BUS thermostat Restart O K Change setting Yes Check Cat 5 cable O K Yes Replace BUS thermostat Replace connection No No WARNING Do not touch the board for under 230 V power supply live components BUS thermostat DIP switch ...

Страница 46: ... Communication error fan slave Check Cat 5 cable between master and slave O K Communication error fan slave No Replace connection Replace slave Yes WARNING Do not touch the board for under 230 V power supply live components ...

Страница 47: ...cable and connector O K TFT without communication black screen with text at the bottom left 2 No Rewire and restart Replace TFT or master controller Yes No communication with device WARNING Do not touch the board for under 230 V power supply live components ...

Страница 48: ...ible closed not visible open Check if bypass opens and closes Menu Setup Bypass test bypass open bypass flap not visible close bypass flap visible O K Yes No Bypass O K Check 24 V supply voltage slave terminal X1 5 6 only if bypass moves menu O K Yes No Replace slave board WARNING Do not touch the board for under 230 V power supply live components Check temperatures in menu settings bypass tempera...

Страница 49: ... available Error intake air too low Mount freeze protection No WARNING Do not touch the board for under 230 V power supply live components Yes Replace preheater Replace STB No No Yes Yes Yes No Change menu No Yes Establish power supply her Yes Replace thermostat Other position restart No Check preheater by cooling the intake air sensor sensor under intake air filter with ice spray measure power su...

Страница 50: ... see error bypass O K Check DIP switch S2 1 left right version O K Error supply air too low WARNING Do not touch the board for under 230 V power supply live components No Change DIP switch Check temperature sensors T2 T4 see temperature sensor No See error bypass flap Yes Yes ...

Страница 51: ... the pipeline for obstruction intake and exhaust air grille O K Filter dirty Fan too noisy No Change filter Yes Yes No Check fan see error Hall1 Hall 2 Eliminate obstruction WARNING Do not touch the board for under 230 V power supply live components ...

Страница 52: ...covery too low Use other sensor No Yes WARNING Do not touch the board for under 230 V power supply live components No Measure directly at device duct socket 𝑡𝑠𝑢 𝑡𝑖𝑛 𝑡𝑒𝑥𝑡 𝑡𝑖𝑛 Check calculation formula O K Yes No Yes Repair bypass see error bypass flap Check heat exchanger No Check airflow when fan speed 2 supply extract or intake exhaust Warning measure in channel tube directly after ventilation de...

Страница 53: ...eck setting of temperature Unusual noises Bearing of the fan is faulty Replace the fan Slurping noise Siphon is empty Siphon does not close Fill the siphon Mount the siphon new Whistling noise somewhere is an air gap Caulk the air gap Condensate leaking condensate drain is blocked Clean the condensate drain Condensate from intake air and exhaust air flows back into the device Mount a siphon before...

Страница 54: ...Appendix 54 Appendix Appendix 1 Circuit diagram NOVUS ...

Страница 55: ...Appendix 55 Appendix 2 Circuit diagram NOVUS with integrated defroster ...

Страница 56: ...Appendix 56 Appendix 3 Terminal scheme of through terminal X10 ...

Страница 57: ...Notes 57 Notes ...

Страница 58: ...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 ...

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