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Wolf CWL-2-400, Installation And Operating Instructions Manual

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Wolf CWL-2-400 Installation And Operating Instructions Manual Download Page 29

 

9.3

Maintenance

Installer maintenance includes cleaning the heat exchanger, internal preaheater and fans. Dependent on
the conditions, this must done about once every three years.

1

Remove the power supply by pulling out the plug.
Open the filter door.

  

 

2

Remove the two filters.

 

3

Remove the front cover.

 

Maintenance

xxxx

7100833_202010

WOLF GmbH | 29

Summary of Contents for CWL-2-400

Page 1: ...7100833_202010 Installation and operating instructions CWL 2 400 Comfort Home Ventilation Modifications reserved GB ...

Page 2: ...the appliance on or off but only if supervised or if they have received clear instructions on the safe use of the appliance and understand the possible dangers on the condition that the appliance has been placed and installed in the normal position for use Children between the ages of 3 and 8 may not insert the plug into the socket nor clean or make changes to the settings of the appliance nor car...

Page 3: ... connector 16 5 5 8 ModBus Connection 16 5 5 9 Coupling appliances using externalBus 17 6 Display 18 6 1 General explanation of control panel 18 6 2 Display layout 19 6 3 Display information 22 7 Starting appliance 23 7 1 Switching appliance on and off 23 7 2 Setting the air flow 23 7 3 Other settings for installer 23 7 4 Factory settings 24 8 Fault 25 8 1 Fault analysis 25 8 2 Display Codes 25 9 ...

Page 4: ... sensor s 41 11 5 Connecting postheater 42 11 6 Connecting preheater 43 12 Service 44 12 1 Exploded view 44 13 Setting values 46 13 1 Setting values standard appliance 46 13 2 Setting values appliance with Plus pcb 49 14 ERP values 52 15 Recycling 54 Contents xxx 4 WOLF GmbH 7100833_202010 ...

Page 5: ... condition The delivery size of the heat recovery appliance type CWL consists of the following components 1 Heat recovery appliance 2 Wall mounting bracket consisting of 1x mounting bracket 2 x protective caps 2x rubber strip 2x rubber rings 3 Siphon 4 Documentation set consisting of 1x installation instructions Delivery 7100833_202010 WOLF GmbH 5 ...

Page 6: ...An intelligent frost protection including modular preheater Low sound level Constant flow control With a Plus pcb more functions connection possibilities Plus version page 11 These installation instructions describe both the standard CWL 2 400 and the CWL 2 400 Plus The CWL 2 400 and the CWL 2 400 Plus are available in Left hand and Right hand versions it is not possible to convert the left and ri...

Page 7: ... 0 31 4 62 5 87 0 126 6 160 8 Rated current excl preheater A 0 12 0 12 0 15 0 16 0 25 0 33 0 58 0 77 1 01 1 25 Max rated current incl preheater switched on A 6 Cos j 0 270 0 272 0 300 0 310 0 369 0 410 0 470 0 493 0 545 0 560 Sound power Ventilation capacity m3 h 150 250 350 400 Sound power level Lw A Static pressure Pa 25 50 100 100 Casing radiation dB A 37 43 5 52 55 Duct From dwelling db A 43 5...

Page 8: ... opening below the appliance With a right hand version the warm connections 1 3 are on the right hand side of the appliance Left hand version 4 0 connections 2 2 connections Right hand version 4 0 connections 2 2 connections All dimensions in millimeters Diameter of all collars is 180 mm 1 To dwelling 2 To outside 3 From dwelling 4 From outside 5 Electrical connections 6 Siphon connection 7 Exhaus...

Page 9: ...nnector X13 13 Motor bypass valve 3 Service connector 14 Discharge filter 4 LED indicator 15 Bypass valve 5 Maximum protection preheater 16 Power cable 230 volt 6 Preheater 17 Relay output X19 7 Temperature sensor 18 24 volt connector X18 8 Supply filter 19 eBus connector X17 9 Exhaust fan 20 24 volt connector X16 10 Siphon connector 21 Modbus bus connector X15 11 Supply ventilator 22 Multiple swi...

Page 10: ... see table below for bypass conditions Follow step numbers 2 1 to 2 6 in the settings menu in the user interface Setting values standard appliance page 46 in order to adjust the operation of the bypass valve Bypass valve preconditions Bypass valve open The outdoor temperature is higher than 10 C adjustable between 7 C and 15 C at step no 2 3 and the outdoor temperature is lower than the indoor tem...

Page 11: ...ntire Plus pcb including casing from the appliance and mount it on for example a wall separate from the heat recovery appliance this can be handy in certain circumstances such as a poor WiFi signal from the Plus pcb A standard heat recovery appliance can also later be modified into a Plus version using the Plus pcb upgrade set 1 CWL appliance with mounted Basic pcb 2 Plus pcb mounting plate 3 Plus...

Page 12: ...ust be mounted to a solid wall with a minimum mass of 170 kg m2 A gypsum block or metal stud wall does not suffice Additional measures such as double panelling or extra studs are required in that case On request a mounting support for floor mounting with the same minimal mass is available In addition the following aspects must be taken into account The appliance must be installed in an insulated f...

Page 13: ...use a 32 mm connection with gasket HT DN32 not supplied with the appliance so that the siphon can be cleaned easily in the future Warning Important During assembly always apply a lubricant such as acid free vaseline to the rubber sealing ring in the gasket This gasket connection has to be disconnected when servicing the appliance The siphon must not be glued to the condensate discharge line The co...

Page 14: ...utside air supply should be arranged from the shadowed side of the dwelling preferably from the wall or an overhang The discharge duct must be fed through the roof boarding in such a way that no condensation forms in the roof boarding The discharge duct between the CWL appliance and the roof sleeve should be such that surface condensation is prevented Always use an insulated ventilation roof sleev...

Page 15: ...uirements of your power company 5 5 2 Connecting the multiple switch The multiple switch not supplied with the appliance is connected to the modular connector type RJ12 connector X14 that is placed on the rear of the display cap of the appliance For connection examples of multiple switch A wireless remote control and a combination of multiple switches is also possible Connecting extra multiple swi...

Page 16: ... Connection The Modbus externalbus red connector X15 can for example be used for coupling appliances Coupling appliances using externalBus page 17 The function of this connector can be adjusted using step number 14 1 to 14 4 in the settings menu If the appliance is fitted with a Plus pcb then this red connector X15 is also in use for connecting the Plus pcb several cables then have to be connected...

Page 17: ...low voltage cable M Master appliance For example a CWL appliance type 4 0 S1 S2 Slave appliances For example a CWL appliance type 4 0 connect maximum of 10 appliances via external Bus All CWL 2 400 appliances have the same air flow rate as the appliance that is set as Master The fault messages of all appliances are shown on the display of the master appliance When using a Bedienmodul BM 2 or the H...

Page 18: ...lected ventilation flow rate In this example the active ventilation flow rate is 100 m3 h 5 Active control 6 Filter message only displayed if applicable 7 Fault only displayed if applicable 8 Access to settings menu 9 Access to information menu Filter message and fault message are located in the same place on the display fault display has a higher priority and so will always be shown first even wh...

Page 19: ...you can change the various values For all setting values of standard appliance Setting values standard appliance page 46 The Plus version of the appliance has various setting values Setting values appliance with Plus pcb page 49 Caution Incorrect settings can disrupt the operation of the appliance Use these arrows to go up or down the various menus or to increase or decrease the values of the rele...

Page 20: ...tep number 15 8 to yes Control using humidity sensor Control using CO2 sensor Control using demand driven ventilation Break contact active or make contact active This appliance is set as Master appliance if a number of appliances are connected cascade Appliance is set as Slave appliance maximum of 9 appliances can be connected to a Master Control via eBus for example Bedienmodul BM 2 Control via M...

Page 21: ...Zone no Symbol on display Description 4 Internet connection Signal strength USB connection active 5 11 07 Current time 6 02 11 17 Current date Display xxxx 7100833_202010 WOLF GmbH 21 ...

Page 22: ...button takes you back 1 step in the menu Briefly press the display shorter than 5 seconds to switch on the display backlight without changing anything in the menu the display lights up for 2 minutes By pressing one of the quarter circles on the main screen the ventilation mode can be quickly adjusted The ventilation mode that has be set in this way remains active for half an hour this is visible o...

Page 23: ... factory as follows 50 100 200 and 300 m3 h The performance and the energy consumption of the appliance depend on the pressure drop in the duct system as well as on the filter resistance If these conditions are not complied with the air flow rate of the higher mode will automatically be adjusted Changes can be carried out in the settings menu Go in the settings menu to steps 1 2 to 1 4 to adjust t...

Page 24: ...ce of the appliance 7 4 Factory settings It is possible to simultaneously revert all the changed settings back to the factory settings All changed settings are then back to the values they had when they left the factory all message and fault codes are also deleted from the service menu Note The filter message however is not reset For returning to factory settings open the settings menu Under appli...

Page 25: ...quested supply flow rate is not reached Locking fault When the appliance detects a locking fault it will no longer work With a locking fault the settings and information menu are also switched off The permanently lighted display shows the fault symbol spanner together with a fault code The red LED on the multiple switch if applicable will be blinking The appliance remains in this fault mode until ...

Page 26: ...dby Replace exhaust fan Fault is reset automatically when voltage is put back on appliance E103 E1200 Bypass defective general fault message None Check wiring Replace bypass or wiring harness E106 E1300 Sensor NTC1 defective general fault Appliance goes to standby Check wiring Replace NTC sensor or replace wiring E111 E1400 RHT sensor 1 defective general message No humidity control Check wiring Re...

Page 27: ...rt general fault message USB interface not usable Replace USB accessory If the fault is not remedied after this take the voltage from the appliance and replace UWA2 B basic pcb E170 E2600 One or more CO2 sensor en defective general fault message Appliance is working no CO2 regulation Check cabling and CO2 sensor s replace if damaged Check CO2 sensor s replace if defective E171 E2700 External prehe...

Page 28: ...sing the Home button and the display then returns to the main screen the filter message is reset and the filter message now disappears Comment If the filter wizard is opened in order to replace the filter whilst there is no filter message on the display screen go in the settings menu to step number 4 2 to open the filter wizard Now follow the instructions on the display and once finished the timer...

Page 29: ...nger internal preaheater and fans Dependent on the conditions this must done about once every three years 1 Remove the power supply by pulling out the plug Open the filter door 2 Remove the two filters 3 Remove the front cover Maintenance xxxx 7100833_202010 WOLF GmbH 29 ...

Page 30: ...s in the appliance 5 Wash the heat exchanger with hot water max 45 C and a regular detergent Then rinse the exchanger with hot water 6 Take EPS assembly with which the fan is inserted into the appliance out of the appliance Maintenance xxxx 30 WOLF GmbH 7100833_202010 ...

Page 31: ... 8 Tilt the fan in such a way that this can be taken out of the EPS assembly disconnect both fan cables from the fan 9 Now take the fan out of the appliance 10 Repeat steps 6 to 9 for the other fan in the appliance Maintenance xxxx 7100833_202010 WOLF GmbH 31 ...

Page 32: ...re that the EPS parts and rails in the appliance are not damaged which could otherwise leads to internal leaks in the appliance Take care when returning the heat exchanger that the text on the type plate is not upside down Place the heat exchanger back such that this type plate is visible 15 Put the front cover back on and screw it secure 16 Install two new filters and close the front cover 17 Rec...

Page 33: ...10 Electrical diagram Electrical diagram 7100833_202010 WOLF GmbH 33 ...

Page 34: ... E option X14 Analoog output 0 or 10 V 19 Connection on ModBus system option X15 Analoog output 2 0 or 10 V 20 X12 is Jumper terminating resistance 120 W ModBus remove if terminating resistance has already been placed in ModBus system With Modbus application remove the jumpers X121 X122 when using Bus place the jumpers X12 X121 X122 remove Jumper X07 from Plus pcb UWA2 E when a Plus pcb is applied...

Page 35: ...cted one can use either an RJ11 or RJ12 plug It is best to use a 4 way switch with filter indication always install an RJ12 connector in combination with a 6 core modular cable 11 1 1 Connecting position switch with filter indication A CWL appliance For example a CWL appliance type 4 0 B 4 way switch with filter indication C Modular cable Note For the modular cable that is used the tab of both mod...

Page 36: ...D Any additional 4 settings transmitters maximum of 6 transmitters can be signed on to 1 receiver E Modular cable Note For the modular cable that is used the tab of both modular connectors must be mounted facing the mark on the modular cable Wire colors C1 C6 may vary dependent on the type of modular cable used Electrical connections accessories xxxx 36 WOLF GmbH 7100833_202010 ...

Page 37: ...indication B2 Extra multi switch with filter indication C Splitter D Modular cable Note For the modular cable that is used the tab of both modular connectors must be mounted facing the mark on the modular cable Wire colors C1 C6 may vary dependent on the type of modular cable used Electrical connections accessories xxxx 7100833_202010 WOLF GmbH 37 ...

Page 38: ...reless remote control D Transmitter with 2 settings E Splitter F Modular cable Note For the modular cable that is used the tab of both modular connectors must be mounted facing the mark on the modular cable Wire colors C1 C6 may vary dependent on the type of modular cable used Electrical connections accessories xxxx 38 WOLF GmbH 7100833_202010 ...

Page 39: ...ul BM 2 A CWL appliance B Bedienmodul BM 2 option C Two core control cables D Green two pole screw connector E Position green eBus connector to rear of control Electrical connections accessories xxxx 7100833_202010 WOLF GmbH 39 ...

Page 40: ...Cover 4 The cable that comes with RH cable 5 RH humidity sensor 6 Duct from dwelling To switch on and set the sensitivity of the humidity sensor go to step number 7 1 and 7 2 in the settings menu Electrical connections accessories xxxx 40 WOLF GmbH 7100833_202010 ...

Page 41: ...nnect a maximum of 4 E Connection X17 eBus and X18 24V on CWL appliance For switching the CO2 sensor s on and off select the right setting at step number 6 1 in the settings menu in order to set the minimum and maximum PPM value of the CO2 sensor s set if necessary the right values following step numbers 6 2 to 6 9 Electrical connections accessories xxxx 7100833_202010 WOLF GmbH 41 ...

Page 42: ... green yellow C4 black C5 white 2 Maximum savety with manual reset 3 2 pole eBus connection X17 on aplliance 4 Temperatur sensor 5 PCB type UVP1 6 Airflow direction 7 Dipswitch setting postheater Electrical connections accessories xxxx 42 WOLF GmbH 7100833_202010 ...

Page 43: ... green yellow C4 black C5 white 2 Maximum savety with manual reset 3 2 pole eBus connection X17 on appliance 4 Temperatur sensor 5 PCB type UVP1 6 Airflow direction 7 Dipswitch setting preheater Electrical connections accessories xxxx 7100833_202010 WOLF GmbH 43 ...

Page 44: ...l number the year of production and the name of the part Note N B Appliance type serial number and year of production are stated on the identification plate behind the plastic front panel on the appliance Example Appliance type CWL 2 400 Serial number 431020184701 Year of production 2020 Part Fan Article code 2139603 Quantity 1 Service 44 WOLF GmbH 7100833_202010 ...

Page 45: ...b UWA2 B CWL 2 2747574 10 Spigot DN160 1 pcs CWL 2 325 400 Spigot DN180 1 pcs CWL 2 325 400 1669556 1669557 11 Plus pcb CWL 2 2747550 12 Mains plug and cable 230 V CWL 2 325 400 2747572 13 Maximum security preheater CWL 2 325 400 2747570 14 Internal preheater 1000W CWL 2 325 400 2747568 15 Temperature sensor NTC 10K 2745155 16 Condensation discharge 2577884 17 Innerpart EPS CWL 2 325 400 only 4 0 ...

Page 46: ...n 50 m h and 400 m h not lower than step no 1 3 1 5 Imbalance permissible Yes Yes No 1 6 Imbalance Open fireplace 0 0 20 1 7 Offset supply 0 15 15 fan setting Value calculated back to set flow rate see screen 1 8 Offset exhaust 0 15 15 fan setting 1 19 Default fan setting 1 0 or 1 2 Bypass 2 1 Mode Bypass Automatic Automatic Bypass closed Bypass open 2 2 Bypass temperature from dwelling 24 C 15 C ...

Page 47: ... PPM eBus CO2 sensor 3 1200 PPM 6 8 Min PPM eBus CO2 sensor 4 400 PPM 6 9 Max PPM eBus CO2 sensor 4 1200 PPM 7 Humidity sensor 7 1 Switching humidity sensor on and off Off On Off 7 2 Sensitivity of humidity sensor 0 2 most sensitive 0 basic setting 2 least sensitive 8 Cascade 8 1 Appliance setting 0 Master 0 9 0 Master 1 t m 9 Slave 1 t m Slave 9 12 Central heating heat recovery 12 1 Status Off On...

Page 48: ...te 15 4 Time format 24h 12h 24h 15 5 Time 15 8 Display No Yes No Display half an hour active as multiple switch when yes is selected touchscreen permanently set as multiple switch 15 9 Back to factory settings No Yes No 15 10 Fan position wizard No Yes No 16 Signal output 16 1 Signal output Off Off Only filter condition Only fault condition Filter and fault condition Connector X19 17 Standby 17 1 ...

Page 49: ...um Fan at setting 1 Fan at setting 2 Fan at setting 3 Fan at step 0 Fan according to multiple switch Fan runs at absolute maximum No exhaust fan control 9 5 Make or break contact 2 Make Make Break 9 6 Switch contact control 2 Off Off On Meets Bypass conditions Open bypass valve Open external valve 9 7 Contact 2 Supply fan action Fan off Fan off Fan runs at absolute minimum Fan at setting 1 Fan at ...

Page 50: ... 0V 0V 10V Connector X 13 10 6 maximum voltage input 2 10V 0V 10V 11 Geo heat exchanger 11 1 Switching on and off Off On Off 11 2 Switch temperature 1 5 C 0 0 C 10 0 C 11 3 Switch temperature 2 25 C 15 0 C 40 0 C 11 4 Mode valve 24 volt control Closed Open Closed 11 5 Valve control Relay output 1 Relay output 1 Relay output 2 Analogue output 1 Analogue output 2 Setting values xxxx 50 WOLF GmbH 710...

Page 51: ...t described above complies with the following directives 2014 35 EU low voltage directive 2014 30 EU EMC directive RoHS 2011 65 EU substances directive 2009 125 EG 1253 1254 EU EU ErP directive The product bears the CE label Mainburg 24 11 2018 Gerdewan Jacobs Technical Director Jörn Friedrichs Development Manager Setting values 7100833_202010 WOLF GmbH 51 ...

Page 52: ...appliance with heat recovery Fan EC fan with infinitely variable control Type of heat exchanger Recuperative plastic cross counterflow heat exchanger Thermal efficiency 92 Maximum flow rate 400 m h Maximum rated power 193 W Sound power level Lwa 50 dB A Reference flow rate 280 m h Reference pressure 50 Pa Specific Power Input SEL 0 17 Wh m Control factor 1 0 in combination with multiple switch 0 9...

Page 53: ...ion from 1 January 2016 SEC class Average climate zone SEC in kWh m a A Most efficient SEC 42 A 42 SEC 34 B 34 SEC 26 C 26 SEC 23 D 23 SEC 20 G Least efficient 20 SEC 10 ERP values xxxx 7100833_202010 WOLF GmbH 53 ...

Page 54: ...cling Sustainable materials are used in the manufacture of this appliance The packaging should be disposed of in a responsible manner and in accordance with governmental regulations Recycling 54 WOLF GmbH 7100833_202010 ...

Page 55: ...Recycling xxxx 7100833_202010 WOLF GmbH 55 ...

Page 56: ...WOLF GmbH Postfach 1380 D 84048 Mainburg Tel 49 0 87 51 74 0 Fax 49 0 87 51 74 16 00 www WOLF eu 615011 A ...

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