Worcester ZWBR 7-30 R 30 HE plus Installation And Servicing Instructions
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Worcester ZWBR 7-30 R 30 HE plus Installation And Servicing Instructions

Wall mounted condensing boiler for central heating and mains fed domestic hot water
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Installation and Servicing Instructions

R 30/35/40 HE plus combi
Wall mounted condensing boiler for central heating and mains
fed domestic hot water
ZWBR 7-30 R 30 HE plus
ZWBR 11-35 R 35 HE plus
ZWBR 11-40 R 40 HE plus
6 720 610 893-01.TD
GC-Number: 41 311 79
GC-Number: 41 311 80
GC Number 41 311 81

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Summary of Contents for Worcester ZWBR 7-30 R 30 HE plus

  • Page 1: Installation And Servicing Instructions

    R 30/35/40 HE plus combi Wall mounted condensing boiler for central heating and mains fed domestic hot water 6 720 610 893-01.TD ZWBR 7-30 R 30 HE plus GC-Number: 41 311 79 ZWBR 11-35 R 35 HE plus GC-Number: 41 311 80...
  • Page 2 Contents Contents 6.5.3 Manual operating mode (TR2 not connected) Hot water 6.6.1 Hot water programme 6.6.2 Hot water immediately i Info Safety precautions Settings 6.8.1 Heating (if TR 2 is connected) 6.8.2 Hot Water (Storage Tank, system models only) 30 Symbols 6.8.3 Service Individual timer programmes...
  • Page 3 Safety precautions Unpacking Safety precautions IMPORTANT HANDLING INSTRUCTIONS If you smell gas B Two people should transfer the packaged appliance B Turn off gas service cock at the meter. from the van to the point of installation B Open windows and doors. B Open the top of the carton, remove and place the B Do not operate any electrical switches.

  • Page 4: Details Of The Appliance

    Details of the appliance Details of the appliance Description of appliance • Wall-mounted appliance. EC Declaration of Conformity • Natural gas models are low-emission appliances • Multi function display This appliance is in accordance with the applicable requirements of the Gas Appliance Directive, Boiler Effi- •...

  • Page 5: Accessories

    Details of the appliance Accessories • Standard horizontal flue kit at 100 mm outside diameter for flues up to 4 m in length (3.5m for the R 40 HE). • Flue duct kits for horizontal (125 mm outside diameter) for flue lengths up to 13m or 10m (R 35 & 40 HE) and vertical flue systems for flue lengths up to 13.7m or 10.7m (R 35 &...

  • Page 6: Layout Of Appliance

    Details of the appliance Layout of appliance 221.1 221.2 32.1 6 720 610 599 - 00.TD Fig. 2 Heatronic control Fixing points Heat exchanger safety temperature limiter 221.1 Flue duct Hot water NTC sensor 221.2 Combustion air intake Testing point for gas supply pressure Fan assembly Pressure gauge Appliance type sticker...

  • Page 7: Function

    Details of the appliance Function 29.1 52.1 6 720 610 597- 03.2O Fig. 3 Bosch Heatronic control Adjusting screw for min. gas flow volume Temperature limiter, heat exchanger Control valve Hot water NTC sensor Motor Testing point for gas supply pressure 3-way valve Pressure gauge Venturi...

  • Page 8: Electrical Wiring Diagram

    Details of the appliance Electrical wiring diagram o - orange g - green bl - black r - red p - purple 25 V 230 V 230V/AC 1 2 4 7 8 9 328.1 mains supply 52.1 6 720 610 602 - 02.1O Fig.

  • Page 9: Technical Data

    Details of the appliance Technical data R 30 HE R 30 HE R 35 HEi R 35 HE R 40 HE R 40 HE Units Propane Propane Propane Max. rated heat output net 40/30°C central heating 31.2 31.2 37.5 37.5 41.4 41.4 Max.

  • Page 10: Installation Regulations

    Installation regulations Condensate analysis, mg/l Domestic water performance Ammonium Nickel 0.15 R 30 R 35 R 40 ≤ 0.01 ≤ 0.0001 Lead Mercury ≤ 0.001 Cadmium Sulphate Domestic Tempera- 30 °C 14.2 17.0 19.2 ≤ 0.005 ≤ 0.015 Chromium Zinc Water Flow ture Rise ≤...

  • Page 11: Important Remarks

    Installation Installation be insulated to prevent the rapid cooling of the water. All types of single lever mixer taps and thermostatic mixer units suitable for a mains pressure of up to 10 bar B Always turn off the gas cock before car- can be used.

  • Page 12: Siting The Appliance

    Installation requirements of BS2767:10. substances will invalidate the guarantee. The pH value of the system water must be less than 8 or Fit Thermostatic Radiator Valves to radiators in the the appliance guarantee will be invalidated. sleeping accommodation and not to the radiator where the room thermostat is sited, this must be left open.

  • Page 13: Wall Mounting Frame Assembly

    Installation B Screw the pre-plumbing manifold with two screws to Wall mounting frame assembly the wall mounting frame. B Take the wall mounting frame out of the package and screw together with 6 screws as shown in fig. 7. Use the inner lugs on the top and bottom horizontal sec- tions.

  • Page 14: Fitting The Appliance

    Internal soil No length and vent stack Sink Ø 22 min. restriction Siphon Open end of pipe Benchmark: For optimum performance direct into gully, Ø 22 min. No length 75 min. trap below ground but 75 min. trap restriction above water level...

  • Page 15: Checking The Connections

    Installation Fixing the appliance The flue system must be installed in accordance with the requirements of BS5440:1. B Fit the washers onto the gas and water connections. Standard 100 mm flue system B Lift the boiler onto the wall-mounting frame. The lugs pass through the rectangular holes in the boiler back The standard concentric flue system provides for a hor- panel.

  • Page 16: Siting The Flue Terminal

    Installation 3.9.1 Siting the Flue Terminal lighting, activated by passive infra-red sensing heads. If the terminal is less than 2 m above a surface to which The flue must be installed in accordance with people have access then a guard must be fitted. The BS 5440:1 and the Building Regulations.

  • Page 17: Installation Of The Flue

    Installation 3.9.2 Installation of the flue The standard 100 mm diameter horizontal flue system is suitable for lengths up to 4m (3.5m R40 HE). Flues up to 650 mm do not require an extension duct assembly. Flues between 1600 mm and 4000 mm (3500 mm R 40 HE) require extension duct assemblies.

  • Page 18: Flue Duct Preparation And Assembly

    Installation Maximum 1600mm Outer Wall Flue Turret Extension Terminal Clamp Duct Assembly 6 720 610 599 - 00.TD Fig. 18 Flue with One Extension Outer Flue Wall Turret Extension Extension Terminal Clamp Clamp Clamp Duct Duct Assembly 6 720 610 599 - 01.TD Fig.
  • Page 19 Installation Outer Wall Face Flue Terminal Wall Sealing Gasket 6 720 610 599 - 01.TD 6 720 610 599-00.TD Fig. 21 Flue length - rear Fig. 23 Flue terminal position Assemble flue system completely. Push the ducts fully together and clamp in the positions. The slope of the terminal outlet must be directed as per Fig.

  • Page 20: Electrical Connections

    Electrical connections Electrical connections Connecting the appliance To gain access to the mains connection remove the B Always disconnect the power supply to drop down facia cover. The drop down cover is the appliance at the mains before carry- removed by lowering it to the horizontal position and ing out any work on the electrical sys- pushing firmly upwards at the rear of the supports to tems and components.

  • Page 21: Mains Voltage External Controls Connections

    Electrical connections B Cut cable grommet to diameter of cable. Mains Voltage external controls connections Externally wired controls are not required; the boiler has a built-in text display programmer and frost protection. The TR2 room thermostat (not supplied) provides addi- tional frost protection and compliance to Part L of the Building Regulations.

  • Page 22: Commissioning

    Appliance type sticker Temperature control for hot water Multi function display Benchmark Water Treatment: For optimum perform- Condensation trap ance after installation, this boiler and its associated cen- Indicator lamp for burner tral heating system should be flushed in accordance...

  • Page 23: System Controls

    Commissioning B Before commissioning, the gas supply pres- Switching off the appliance sure must be checked at the gas supply pres- B Set the master switch to (0). sure test point (see page 6, fig. 2, item 7). The green indicator lamp goes out. The optional timer Natural gas appliances must not be operated if will continue running until the emergency supply is the gas supply pressure is below 18 mbar or...

  • Page 24: Hot Water Flow Rate

    Commissioning B To reduce the flow rate (min. 8 l/min): Setting the domestic hot water turn screw on flow switch clockwise (–). temperature and flow rate The outlet temperature will increase relative to the 5.5.1 Domestic hot water temperature decrease in the flow rate. The hot water temperature can be set to between approx.
  • Page 25 Text Display B To start programming, press any button, e. g. Text Display The display lighting switches on and the main menu is displayed: General Description /holidays • The text display is used to display information about the appliance and the system and to alter the settings displayed.
  • Page 26 Text Display B Press the button to confirm the setting. The Menu structure cursor then returns to the top line. Submenu -or- Main Parameters to B Press the button to confirm the setting and menu change/select return to the previous menu (fig. 37 page 25). Time/ Time/day - - Hours...
  • Page 27 Text Display Setting the time/day Basic setting (Automatic mode) • The appliance switches automatically between nor- 6.4.1 Setting the time and day mal heating, Economy mode and Frost protection For details of how to set the time and day, refer to mode according to the timer settings entered.
  • Page 28 Text Display 6.5.2 Setting the Economy temperature (if TR2 i Info is connected) B Select Info from the main menu. This option allows you to set the room temperature for Economy mode (Off (Economy)). You can view the following information: This function is only active if: Display text Description...
  • Page 29 Text Display Settings Time correction: B Press and hold the button (about 5 seconds) 6.8.1 Heating (if TR 2 is connected) until the display shows Time correction and LCD contrast. Optimum Start B Press to select Time correction. If the optimum start facility is used: B Press the button.

  • Page 30: Individual Settings

    Individual settings Individual settings Mechanical settings Control setting CH flow temperature 7.1.1 Checking the size of the expansion vessel approx. 35°C approx. 43°C Maximum pressure at maximum CH flow temperature is 2.5 bar. If the pressure is greater than this then fit an approx.

  • Page 31: Setting The Maximum Ch Flow Temperature (Service Function 2.5)

    Individual settings Setting service functions 7.2.4 Setting the heating output (Service Function 5.0) Only the service functions that can be set are displayed. The heating output can be set to any level between min. B Press any button to activate the main menu. rated heat output and max rated heat output to limit it to B Press button until the arrow cursor is...

  • Page 32: Converting The Appliance To Different Gas Types

    Converting the appliance to different gas types Converting the appliance to different gas types The setting is factory sealed at maximum. Adjustment to Setting the gas/air ratio the rated heat input and min. heat input is not neces- The gas/air ratio may only be adjusted on the sary.
  • Page 33 Converting the appliance to different gas types B Press until the display shows normal. B Press the button. The text display shows Store settings. B Press to select yes. B Press the button. B Remove testing probe from the flue gas testing point (234) and refit sealing plug.

  • Page 34: Testing Combustion Air/Flue Gas At Set Heat Output

    Converting the appliance to different gas types Testing combustion air/flue gas at set heat output 8.2.1 Testing the O or CO level in the 8.2.2 Testing CO and CO combustion air B Press and hold the button until the display By testing the O or CO level in the com-...

  • Page 35: Maintenance

    Maintenance Maintenance B Always disconnect the appliance from the electrical power supply (fuse, circuit breaker) before carrying out any work on the electrical systems or components. B Always turn off the gas cock before car- rying out any work on components which carry gas.

  • Page 36: Pre-Service Check List

    Maintenance Pre-Service Check List Date Call up the last fault stored by the text display, (see page 29). Check ionisation current, Service Function 3.3, (see page 37). Perform visual check of air/flue duct. Visual check of diaphragm for soiling and splits (see page 39). Check gas supply pressure mbar (see page 32).

  • Page 37: Description Of Servicing Operations

    Maintenance B Check control pressure on the air - gas mixer unit at Description of servicing operations max. rated heat output using an electronic manome- The combustion performance must be checked before ter. and after any servicing work on the combustion and burner components.
  • Page 38 Maintenance B Loosen any deposits in the heat exchanger from top Burner to bottom using the cleaning blade. Refer to fig. 47. B Check that the gas cock is turned off and the master switch is in the OFF position B Remove the clips (1) and unscrew the two bolts (2).
  • Page 39 Maintenance Condensation trap The flaps of the diaphragm (443) must In order to prevent spillage of condensate the conden- open upwards. sation trap should be completely removed, (see page 37, fig. 46). B Seal the mixer unit (29). B Unscrew condensation trap and check connection to Diaphragm in mixer unit for 35 &...

  • Page 40: Replacement Of Parts

    Maintenance Siphon Replacement of Parts B Unscrew the clip and disconnect the pipe to the Before changing any components check that the gas is siphon. turned off and that the appliance is electrically isolated. When necessary close the system valves and drain the B Remove the drain plug to drain the siphon.

  • Page 41: Fan Assembly

    Maintenance B Remove the pcb control board. 9.3.2 Fan Assembly 7 181 465 330-10.1R Fig. 56 7 181 465 330-05.1R Fuses Fig. 57 B Remove the connections covers. Refer to fig. 25, B Switch off the appliance. B Undo lower pipe union on gas pipe (1.). Refer to fig.

  • Page 42: Way Diverter Valve

    Maintenance B Remove 3-way valve. Alternatively B After removing the siphon release the four Allen screws and remove and replace the pump head. 7 181 465 330-12.1R Fig. 59 After refitting: B Fill system, bleed and re-pressurise (see Installation Instructions). 9.3.5 3-way diverter valve motor Fig.

  • Page 43: Gas Valve

    Maintenance Domestic Hot Water Temperature Sensor – 9.3.8 Domestic Hot Water Heat Exchanger Item 6.1, fig. 2 B Refer to section 9.2. B Check that the inlet water valve is closed and the B Use new seals when fitting the new heat exchanger. domestic hot water circuit is drained.

  • Page 44: Flow Switch

    Maintenance B Transfer components, as necessary, to the new heat 9.3.14 Flow switch exchanger. B Shut the mains water inlet valve and drain the domes- B Ensure that all the seals are in place and all of the tic hot water circuit. connections are tight before re-commissioning the B Pull-off the connectors from the micro-switch.

  • Page 45: Appendix

    Appendix Appendix 10.1 Fault Codes More detailed fault finding procedures are described in the Service Booklet for the Engineer number 7 181 465 347. Display code Description Remedy pump has run dry Check system pressure, add water and bleed system as necessary Hot water NTC sensor defective.

  • Page 46: Short Parts List

    Appendix 10.2 Short parts list Description Qty GC Spare part number Sensor - Flue gas temp. 8 722 963 858 0 Sensor - CH flow temp. 8 714 500 087 0 Sensor - DHW flow temp. 8 714 500 054 0 Control board pcb 8 748 300 495 0 Gas valve ZWBR 8-30...

  • Page 47: Heating/Hot Water Output Settings R 30 He N.g

    Appendix 10.3 Heating/hot water output settings 10.5 Heating/hot water output settings R 30 HE N.G. R 35 HE N.G. Natural gas G20 Natural gas G20 Display Heat Heat Gas vol. flow rate Display Heat Heat Gas vol. flow rate code output, input, (l/min at...

  • Page 48: Operational Flow Diagrams

    Appendix 10.7 Operational Flow diagrams 10.7.1 Domestic hot water function Fig. 63 6 720 611 400 GB (03.11)
  • Page 49 Appendix 10.7.2 Central heating function Fig. 64 6 720 611 400 GB (03.11)
  • Page 50 Appendix 6 720 611 400 GB (03.11)
  • Page 51 Appendix 6 720 611 400 GB (03.11)
  • Page 52 Appendix Appendix EXCELLENCE COMES AS STANDARD Worcester Bosch, Cotswold Way, Warndon, Worcester WR4 9SW. Telephone: (01905) 754624 Fax: (01905) 754619...
  • Page 53 Users Instructions and Customer Care Guide R 30/35/40 HE combi plus Condensing boiler 6 720 610 598 - 00.2O ZWBR 7-30 R 30 GC-Number: 47 311 79 ZWBR 11-35 R 35 GC-Number: 47 311 80 ZWBR 11-40 R 40 GC-Number: 47 311 81...

  • Page 54: Table Of Contents

    Contents Contents Excellence comes as standard Safety precautions General notes Controls Operating the Appliance Preparation Switching the Appliance On/Off Switching on the Central Heating Controlling Central Heating Combination Boilers: Setting Hot Water Temperature System boiler with Storage Tank Summer Mode, Hot Water Only (Combi Appliances) Frost protection (Combi Appliances) Fault Condition Text Display...
  • Page 55 Contents 4.5.1 Heating program 4.5.2 Setting the Economy temperature (if TR2 is connected) 28 4.5.3 Manual operating mode (if TR2 is not connected) Hot water 4.6.1 Hot water program 4.6.2 Hot water immediately (System models) i Info Settings 4.8.1 Heating (if TR 2 is connected) 4.8.2 Hot Water (Storage Tank, System boiler models only) 4.8.3 Service Individual timer programmes...

  • Page 56: Excellence Comes As Standard

    Worcester Heat Systems Ltd. Condensing appliance. Benchmark The “Benchmark” initiative is the new code of practice to encour- age the correct installation, commissioning and servicing of domestic central heating boilers and system equipment.

  • Page 57: Safety Precautions

    Safety precautions Safety precautions Gas Safety (Installation and Use) Regulations 1998 It is the law that all gas appliances are installed by a competent person in accordance with the above regulations. Failure to install appliances correctly could lead to prosecution. It is in your inter- est, and that of safety, to ensure compliance with the law.
  • Page 58 Safety precautions Combustible materials B Do not store or use any combustible materials (paper, thin- ners, paints etc.) in the vicinity of the appliance. Health and safety B This appliance contains no asbestos products. B There is no potential hazard due to the appliance being electri- cally unsafe.

  • Page 59: General Notes

    General notes General notes To get the best from your appliance please read these instructions carefully. Sealed heating systems The appliance is fitted to a sealed heating system which is pre- pressurised. Your installer will tell you of the minimum and maxi- mum pressure which must be indicated on the pressure gauge.
  • Page 60 General notes Clearances Your installer will have provided adequate space around the appli- ance for safety and servicing access. Do not restrict this space with the addition of cupboards, shelves etc. next to the appliance. Left-hand side 10 mm Right-hand side 10 mm In Front 600 mm...
  • Page 61 General notes With all mains fed systems the flow of water from individual taps will vary with the number of outlets operated simultaneously and the cold water mains supply pressure to the property. Flow balancing using “ball-o-fix” type valves is recommended to avoid an excessive reduction in flow to individual outlets.
  • Page 62 General notes Do not allow the flue terminal fitted on the outside wall to become obstructed or damaged. Pump The pump is a fully modulating type to which the parameters have been set by the manufacturer and must not be adjusted. 6 720 610 598 GB (03.11)

  • Page 63: Controls

    Controls Controls 61 317 366 367 6 720 610 598 - 01.2O Fig. 1 System Pressure gauge Reset button Master switch Central heating temperature control Service valves in CH flow and return Hot water Gas isolation valve (open) Cold water inlet Identification sticker Hot water temperature control Display...

  • Page 64: Operating The Appliance

    Operating the Appliance Operating the Appliance Preparation Turn on the gas cock (172). B Press in the handle and turn it anti-clockwise as far as the stop (when handle is in line with direction of flow, the cock is open). Central heating system valves (170) B Using a spanner, turn square nut until groove is in line with direction of flow (see detail).
  • Page 65 Operating the Appliance Check the central heating system pressure B The pointer on the pressure gauge (8.1) should be about 1 bar. B If the pointer is below 1 bar (when the system is cold), top up the system with water until the pointer is 1 bar. Your installer will have shown you how to do this.

  • Page 66: Switching The Appliance On/Off

    Operating the Appliance Switching the Appliance On/Off Switching on B Switch on the appliance at the master switch (I). The indicator lamp shows green and the display will show the central heating flow temperature, when the appliance is oper- ating in the central heating mode. 6 720 610 333-04.1O Fig.

  • Page 67: Switching On The Central Heating

    Operating the Appliance Switching on the Central Heating B Turn the central heating temperature control to the desired level: – “Min” setting: 35°C – Low-temperature heating: setting “E” (approx. 75°C) – “Max” setting: 88°C When the burner is lit, the red indicator lamp is illuminated. 6 720 610 333-05.1O Fig.

  • Page 68: Combination Boilers: Setting Hot Water Temperature

    Operating the Appliance Combination Boilers: Setting the Hot Water Temperature Hot water temperature On combi models, the hot water temperature can be set to between approx. 40°C and 60°C using the temperature control The domestic hot water temperature is not shown on the display. 6 720 610 333-07.1O Fig.

  • Page 69: System Boiler With Storage Tank

    Operating the Appliance ECO mode with demand detection, button is lit The demand detection function enables maximum gas and water economy. Briefly turning a hot water tap on and then off again signals demand to the appliance which then heats up the water to the set temperature.

  • Page 70: Summer Mode, Hot Water Only (Combi Appliances)

    Operating the Appliance Control Setting Water Temperature Anti-clockwise limit approx. 10°C (frost protection) approx. 60°C Clockwise limit approx. 70°C Table 3 ECO button Pressing and holding the ECO button , until it lights up switches from Comfort mode to ECO-mode. Comfort mode, ECO button is not lit (factory setting) In Comfort mode the hot water tank has priority.

  • Page 71: Frost Protection (Combi Appliances)

    Operating the Appliance Frost protection (Combi Appliances) B Leave master switch switched on. If the appliance is to be left for long periods switch the central heating on and set the room temperature controller at 6°C. B Add a suitable anti-freeze fluid to the water in the central heat- ing system.

  • Page 72: Text Display

    Text Display Text Display General Description • The text display is used to display information about the appli- ance and the system and to alter the settings displayed. • Once the appliance has been in operation for one day, the text display module has a power buffer period of about 10 hours during which it will run without the mains power supply.
  • Page 73 Text Display • Domestic Hot Water temperature (System boiler if a Storage Tank is accorded). Additional indication if a special programme is active: • x holidays • Hot water immediately • Constant on (comfort, if TR2 is not connected) • Constant off (economy, if TR2 is not connected). Other special operating modes may be displayed during commis- sioning, servicing, etc.
  • Page 74 Text Display B Confirm the selection by pressing the button. The corresponding submenu is displayed: 6 720 610 598-05.2O Fig. 10 Submenu: Time/day In the submenus, the top line indicates what action is required. The bottom line shows the previous menu level, if applicable (see Fig.

  • Page 75: Deleting A Setting

    Text Display B Use the button to set the minutes. B Confirm the setting by pressing the button. B Use the button to set the day of the week. B Press the button to confirm the setting. The cursor then returns to the top line.

  • Page 76: Menu Structure

    Text Display Menu structure Submenu Parameters to Main menu 1. change/select Time/day/hol- Time/day - Hours idays - Minutes - Day of week Holidays Days holiday Heating Heating - Day program - 1st operating mode - 1st switching point - 6th switching point Set econ- 5...30°C omy temp.

  • Page 77: Setting The Time/Day

    Text Display Submenu Parameters to Main menu change/select Settings Heating Optimum Start Off/On Hot water Only charging times/ (System times and temperatures boiler-mod- els) Service Display service param. Further Language -English/ options -Français/ -Deutsch -Time correction -LCD contrast Operating times Fault history Setting the time/day...
  • Page 78 Text Display ically cancels Economy mode at midnight on the last day and returns to Automatic mode. The day on which you enter the days holiday counts as the first day of the holiday, i.e. the unit starts the holiday program immediately. Only in- clude the day on which you are returning if you don’t want the heating to return to the normal pro- gram on that day!

  • Page 79: Heating

    Text Display Heating 4.5.1 Heating program Basic setting (Automatic mode) • The appliance switches automatically between normal heating, Economy mode and Frost protection mode according to the timer settings entered. • Basic setting: – Heating starts at 6:00 am – Economy starts at 10:00 pm Setting options •...

  • Page 80: Setting The Economy Temperature (If Tr2 Is Connected)

    Text Display B Press . The display shows Set 1. operating mode. B Set the desired first operating mode (Heating, Economy or Frost protection). B Press . The display shows Set 1. time period. B Set the desired first time period. B Press .

  • Page 81: Manual Operating Mode (If Tr2 Is Not Connected)

    Text Display 4.5.3 Manual operating mode (if TR2 is not connected) For selecting an operating mode that is different from the one set in the heating programme (Automatic mode). • You can choose between Automatic, Constant on (comfort) and Constant off (economy). •...

  • Page 82: Hot Water

    Text Display Hot water General description • Combi models only: The basic settings provide a straightfor- ward timer programme: enabled from 5:00 am, disabled from 10:00 pm. The ECO button must not be lit (Comfort mode). • System models (with Storage Tank): The basic settings pro- vide a timer programme: enable from 5:00 am, disable from 10:00 pm.

  • Page 83: Hot Water Program

    Text Display 4.6.1 Hot water program • Up to six switching points per day can be set. • There are two operating modes: Blocked and Released. B From the main menu, select Hot water and then from the first submenu, select Hot water program. B Set the days of the week, Blocked/Released (operating mode) in the same way as for the switching points and modes for heating as described on page 27.

  • Page 84: Info

    Text Display i Info B Select Info from the main menu. You can view the following information: Display text Description Current temperature in the room Room temperature (if TR 2 connected) where TR 2 is installed Required room temper- Required temperature in room where ature (if TR 2 connected) TR 2 is installed Operating mode...

  • Page 85: Settings

    Text Display Settings 4.8.1 Heating (if TR 2 is connected) Optimum Start B From the main menu, select Settings and from the first sub- menu, select Heating. B Press to switch Optimum Start on or off. 4.8.2 Hot Water (Storage Tank, System boiler models only) The text display can control the hot water either with Times and temperatures or only times.
  • Page 86 Text Display Service parameters Language Available languages are: English, Français (French), Deutsch (German). B From the main menu, select Settings, from the first submenu select Service, from the Second submenu select Further options, and from the third submenu select Language. B Press to select the desired language.
  • Page 87 Text Display water) since commissioning. B From the main menu, select Settings, from the first submenu select Service, from the Second submenu select Further options, and from the third submenu select Operating times. Fault history This option displays any faults that have occurred for the informa- tion of the service engineer.

  • Page 88: Individual Timer Programmes

    Text Display Individual timer programmes Heating periods for central heating Switching point Status Monday Tuesday Wednesday Thursday Friday Saturday Sunday Enable/disable hot water function Switching point Status Monday Tuesday Wednesday Thursday Friday Saturday Sunday 6 720 610 598 GB (03.11)

  • Page 89: Fault Finding

    Fault finding Fault finding Problem Cause Remedy Desired room Thermostatic Increase thermo- temperature is not valve(s) set too static valve set- reached ting(s) Temperature con- Increase CH flow trol for CH flow temperature con- set too low trol setting Air trapped in Bleed radiators heating system and heating sys-...

  • Page 90: Tips On Saving Energy

    Tips on saving energy Tips on saving energy Heating economically The boiler is designed to provide a high level of comfort while keeping gas consumption and the resulting environmental effect as low as possible. The gas supply to the burner is controlled according to the level of demand for heat.

  • Page 91: General Information

    The information is printed on the appliance identification plate/ sticker (see page 11, item 295). Your installer will have completed the Benchmark “log-book” giv- ing details of the boiler together with name, address and registra- tion number. Have the “log-book” to hand when calling a Service Engineer.

  • Page 92: Maintaining Your Appliance

    Maintaining your appliance Maintaining your appliance Your new R 30/R 35/R 40 gas-fired appliance represents a long- term investment in a reliable, high quality product. In order to realise its maximum working life, and to ensure it con- tinues to operate at peak efficiency and performance, it is essen- tial that your boiler receives regular, competent servicing and maintenance checks beyond the initial 2 year guarantee period.

  • Page 93: Fault Or Breakdown

    Fault or breakdown Fault or breakdown This product is supported in the UK by Worcester Heat Systems Ltd. – part of the Bosch Group. A specialist factory trained field SERVICE ENGINEER is available to attend a breakdown or manufacturing fault occurring on this appliance.

  • Page 94: Your Guarantee

    Your guarantee Your guarantee This appliance is guaranteed against faulty material or workman- ship for a period of 24 calendar months from the date of installa- tion subject to the following conditions and exceptions. • That during the currency of this guarantee any components of the unit which are proved to be faulty or defective in manufac- ture will be exchanged or repaired free of material charges and free of labour charges by Worcester Heat Systems Limited.

  • Page 95: Guarantee Registration

    Serial number:..................... (See identity label inside appliance casing) Type/size:..................... Date of installation:..................Check that the Benchmark “log-book” has been completed by your installer or service engineer. EXCELLENCE COMES AS STANDARD Worcester Heat Systems Limited, Cotswold Way, Warn- don, Worcester WR4 9SW.

This manual is also suitable for:

Zwbr 11-35 r 35 he plusZwbr 11-40 r 40 he plusR 30 he plus combiR 35 he plus combiR 40 he plus combi

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