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Bosch WR 11 B Installation Manual And Operating Instructions

Gas instantaneous water heater
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Gas Instantaneous Water Heater
WR 11/14/18 .B..
Installation Manual an d Operating Instructions
Read installation manual prior to installation of this unit!
Read user manual before putting this unit in operation!
Observe the warnings in the manuals!
The installation room must fulf
Installation by an authorised person only!
ill the ventilation requirements!

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  Summary of Contents for Bosch WR 11 B

  • Page 1 Gas Instantaneous Water Heater WR 11/14/18 .B.. Installation Manual an d Operating Instructions Read installation manual prior to installation of this unit! Read user manual before putting this unit in operation! Observe the warnings in the manuals! The installation room must fulf ill the ventilation requirements! Installation by an authorised person only!
  • Page 2: Table Of Contents

    2 | Table of contents Table of contents Key to symbols and safety instructions ..3 Maintenance (must be carried out only by Key to symbols ..... . . 3 quali ed technicians) .
  • Page 3: Key To Symbols And Safety Instructions

    Key to symbols and safety instructions | 3 If there is a smell of burnt gases: Key to symbols and safety instructions Disconnect the appliance. Open doors and windows. Key to symbols Inform an installation company. Warnings Burn-back ( re in burner tube or chamber) In the event of a burn-back, where the ame burns back to Warnings in this document are identi ed by the injector, immediately turn o the gas supply at the...
  • Page 4 4 | Key to symbols and safety instructions Important information for the user This appliance may only be installed by a registered LP Gas installer. All registered installers are issued with a card carrying their registration number. Ask to be shown the card befo re allowing the installation work to commence and make a note of the Installer QCC...
  • Page 5: Technical Characteristics And Dimensions

    Technical Characteristics and Dimensions | 5 Technical Characteristics and Dimensions Declaration of conformity with relevant EEC Description of the heater regulations Operating convenience, as the heater is ready to operate by simply pressing a switch. This appliance ful lls Europe an directive requirements 2009/ 142/EC, 2006/95/EC, 2004/108/EC and corresponds to the •...
  • Page 6: Dimensions

    6 | Technical Characteristics and Dimensions Dimensions Fig. 1 [1] Front cover [8] Gas connection [2] Hole for xing to wall [9] Flue socket [3] Temperature control [10] Draught diverter wi th ue gas monitor [4] Led indicator for battery charge level [11] Heat exchanger [5] ON/OFF switch [12] Automatic gas valve...
  • Page 7: Electrical Diagram

    Technical Characteristics and Dimensions | 7 Electrical diagram Fig. 2 Electrical diagram [1] Servo valve (normally open) pilot burner ame is then exting uished after a short period of [2] Diaphragm valve time. [3] Main valve (normally closed) This is a way of saving a great amount of energy as the pilot [4] Ionisation detector burner only operates for the mi...
  • Page 8: 2.10 Technical Characteristics

    8 | Technical Characteristics and Dimensions 2.10 Technical characteristics Technical characteristics Symbol Units WR11 WR14 WR18 Power and ow Btu/h 65570 80595 104165 i n i Btu/h 23905 23905 23905 Useful power (adjustment range) Btu/h 23905- 23905 - 23905 - 65570 80595 104165...
  • Page 9: Use

    Use | 9 Open all water and ga s blocking devices. Purge the pipes. CAUTION: The front panel in the bu rner and pilot burner area may reach high temperatures, with risk of burning in case of contact Before starting up the heater 6720680412-01.1av CAUTION: Fig.
  • Page 10: Power Adjustment

    10 | Use Fig. 8 6720680412-03.1av Temperature/ ow adjustment Fig. 6 Turn anti-clockwise Increases ow and decreases water temperature. Turning o Press the switch , position Power adjustment Lower water temperature. Less power. Fig. 9 Turn clockwise. Decreases ow and incr eases water temperature. Regulating the temperature to the minimum required value reduces energy consumption as well as the possibility of...
  • Page 11: Cleaning

    Regulation | 11 Empty the appliance of all water. The appliance can only be sold in the countries mentioned in the type plate. Important information Before installing, call th e gas company and check the standard relating to gas heaters and ventilation requirements for rooms.
  • Page 12: Heater Mounting

    12 | Installation (must be carried out only by quali ed technicians) If these conditions cannot be me t, a di erent location must be selected for the gas intake and evacuation. Surface temperature The maximum surface temperature of the heater is less than 85 °C, with the exception of the combustion gases evacuation device.
  • Page 13: Gas Connection

    Adjustments (must be carried out only by quali ed technicians) | 13 Connect the water pipes to the water valve using the Inlet/exhaust pipe installation provided connection accessories. Pipes should be installed according to the instructions in the relevant manual. DANGER: Make sure that all ue connections are tighten sealed.
  • Page 14: Pressure Adjustment

    14 | Adjustments (must be carried out only by quali ed technicians) Power may be tuned according to the burner pressure process, Using the adjusting screw, regulate the pressure until for which a manometer with U- shaped connecting tubes is obtaining the values indicated in the table 8.
  • Page 15: Conversion To A Di Erent Type Of Gas

    Adjustments (must be carried out only by quali ed technicians) | 15 Minimum gas ow adjustment The minimum gas ow adjustment is performed automatically after the adjustment of the maximum gas ow. Natural gas H Butane Propane 8708202113 8708202130 (1,10) (0,70) WR11 8708202124...
  • Page 16: Quali Ed Technicians)

    (inspection) or if Replace the water lter installed in the water valve entry. necessary (maintenance). These jobs can only be done by a Bosch Technical Assistance WARNING: delegate. Is forbidden to start up the appliance without water lter correctly assembled.
  • Page 17: Flue Gas Safety Device

    Maintenance (must be carried out only by quali ed technicians) | 17 Flue gas safety device DANGER: The ue gas safety device must not under any circumstances be switch ed o , simulated or replaced by any other component. Operation and safety precautions The ue gas safety device checks the e ectiveness of ue gas extraction by the ue.
  • Page 18: Problems

    18 | Problems Problems Assembly, maintenance and repairs must be performed by qualif ied technicians only. The following chart o ers solutions to possible problems (solutions followed by an * mu st be undertaken by quali ed technicians only). Problem Cause Solution The heater does not ignite.
  • Page 19: Environment / Disposal

    Environment / disposal | 19 Environment / disposal Environmental protection is a fundamental corporate strategy of the Bosch Group. The quality of our products, their e ciency and environmental safety are all of equal importance to us and all environmental protection legislation and regu lations are strictly observed.
  • Page 20 6720648592 Give It Gas - operates solely as an ONLINE BUSINESS Tel: (011) 646 9439 Cell: (082) 452 4488 Email: penny@giveitgas.co.za www.giveitgas.co.za...

This manual is also suitable for:

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