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Bosch OptiFlow Professional GWH12 1 CTD E23 F5 L Operating Manual

Room sealed gas continuous flow water heaters
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Room sealed gas continuous flow water heaters
OptiFlow Professional
GWH12/16/20 1 CTD E23/31 F5 L
Operating Manual
Read installation manual prior to installation of this appliance!
Read user manual before putting this unit in operation!
Observe the warnings in the manuals!
The installation location must meet the requirements for sufficient ventilation!
Installation by an authorised person only!
6720808879-00.1V

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  Summary of Contents for Bosch OptiFlow Professional GWH12 1 CTD E23 F5 L

  • Page 1 6720808879-00.1V Room sealed gas continuous flow water heaters OptiFlow Professional GWH12/16/20 1 CTD E23/31 F5 L Operating Manual Read installation manual prior to installation of this appliance! Read user manual before putting this unit in operation! Observe the warnings in the manuals! The installation location must meet the requirements for sufficient ventilation! Installation by an authorised person only!
  • Page 2: Table Of Contents

    2 | Index Index Key to symbols and safety instructions ..3 Key to symbols ..... . . 3 Safety Information .
  • Page 3: Key To Symbols And Safety Instructions

    ▶ Safe access to inspect and service the water heater is the responsibility of the property owner. This symbol indicates important information ▶ Use only genuine Bosch spare parts. where there is no risk to people or property. Explosive and flammable material ▶...
  • Page 4: Product Details

    4 | Product details • Demonstrating the operation of the appliance to the Product details customer before leaving. • Handing these instructions to customer. EC Declaration of Conformity THIS APPLIANCE IS NOT SUITABLE FOR POOL OR SPA POOL The appliance has been tested and certified to Australian APPLICATIONS.
  • Page 5: Included Items

    Product details | 5 Included Items • Gas continuous flow water heater • Fixing bracket • Appliance documentation Rating plate The rating plate is located on the outside of the appliance, on the bottom. The rating plate specifies the performance of the appliance, approval and serial numbers.
  • Page 6: Appliance Layout

    6 | Product details Appliance layout Fig. 1 [1] Heat exchanger [13] Ignition electrode [2] Flame sensor rod [14] Burner pressure test point [3] Burner [15] Water flow sensor and Water valve [4] Air pressure test point [16] Electronic control unit [5] Fan [17] Cold water temperature sensor [6] Air temperature sensor...
  • Page 7: Operation Instructions

    Operation instructions | 7 Operation instructions Switching the appliance on/off Open all the water and gas valves. Switching on the appliance By default, the heating temperature of the water is: 55°C preset appliances: 55°C CAUTION: Hot surface! 50°C compliant appliances: 50°C The front of the appliance may reach high temperatures.
  • Page 8: Programming Button

    NOTICE: Not draining the appliance when a freezing risk exists may damage components of the ▶ Your appliance should only be attended to by a Bosch appliance. service agent. Call for service contract details: AU 1300 30 70 37, NZ 0800 54 33 52.
  • Page 9: Troubleshooting

    Troubleshooting | 9 Troubleshooting Fitting, maintenance and repair must only be carried out by authorised technicians. The following table describes the possible solutions. Display Description Possible solution Cold and hot water temperature sensor damaged. ▶ Check temperature sensor and associated connections.
  • Page 10 10 | Troubleshooting Display Description Possible solution Faulty inlet water temperature sensor. ▶ Check temperature sensor and associated connections. ▶ If the problem persists, call an authorised service technician. Air temperature sensor detects overheating (leaking ▶ Switch off at the power point and remove combustion products inside the combustion the plug from the electrical socket.
  • Page 11: Environmental Considerations

    NZ 0800 54 33 52. Environmental considerations Environmental protection is a fundamental corporate strategy of the Bosch Group. The quality of our products, their efficiency and environmental safety are all of equal importance to us and all environmental protection legislation and regulations are strictly observed.
  • Page 12: Water Quality

    12 | Water quality Water quality All Bosch water heating appliances are constructed from high quality materials and components and all are certified for compliance with relevant parts of Australian and New Zealand gas, electrical and water standards. Whilst Bosch water heaters are warranted against defects, the...
  • Page 13: Warranty Details

    1. Warranty of the hot water unit. Bosch offers, at its option, to repair or exchange this Bosch hot water unit or the relevant part listed in clause 2 below at no 4. Warranty conditions charge, if it becomes faulty or defective in manufacture or (a) Proof of purchase may be required.
  • Page 14 Purpose. A customer can object at any time to the use of their personal information for the Purpose. Bosch will cease to use a customer's personal information accordingly if an objection is made.
  • Page 15 | 15 Notes OptiFlow Professional 6 720 813 939 (2016/05)
  • Page 16 6720813939...