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Bosch ZSB 30-2 A Operating Instructions Manual
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Bosch ZSB 30-2 A Operating Instructions Manual

Hydronic gas condensing boiler
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Hydronic Gas Condensing Boiler
Condens 5000 W
ZSB 30-2 A ...| ZWB 37-2 A ...
Operating Instructions

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Summary of Contents for Bosch ZSB 30-2 A

  • Page 1 Hydronic Gas Condensing Boiler Condens 5000 W ZSB 30-2 A ...| ZWB 37-2 A ... Operating Instructions...

  • Page 2: Table Of Contents

    Contents Contents Key to symbols and safety instructions ....4 Explanation of symbols ..... . . 4 Safety instructions .
  • Page 3 Contents Carry out thermal disinfection ..... 30 Tips on saving energy ......32 Troubleshooting .

  • Page 4: Key To Symbols And Safety Instructions

    4 | Key to symbols and safety instructions Key to symbols and safety instructions Explanation of symbols Warning symbols Safety instructions in this document are framed and identified by a warning triangle which is printed on a grey background. Electrical hazards are identified by a lightning symbol surrounded by a warning triangle.
  • Page 5 Key to symbols and safety instructions | 5 Important information Notes contain important information in cases where there is no risk of personal injury or material losses and are identified by the symbol shown on the left. They are bordered by horizontal lines above and below the text.

  • Page 6: Safety Instructions

    6 | Key to symbols and safety instructions Safety instructions If you smell gas B Turn off gas tap ( page 16). B Open windows and doors. B Do not operate any electrical switches. B Extinguish any naked flames. B Leave the building and telephone your gas supply utility and authorised contractor from an outside phone.
  • Page 7 Key to symbols and safety instructions | 7 Risk of damage due to operator error Operator errors can result in injury and damage to property. B Ensure that children never operate this appliance unsupervised or play with it. B Ensure that only personnel who can operate this appliance correctly have access to it.

  • Page 8: Product Details

    The appliance may only be installed in sealed hot-water central heating systems to EN 12828. Using the appliance for any other purpose will be considered incorrect use. Bosch accepts no liability for any damage resulting from such use. The commercial and industrial use of appliance to generate process heat is not permitted.

  • Page 9: Preparing The Appliance For Use

    Preparing the appliance for use | 9 Preparing the appliance for use Turn on the gas service cock B Using a screwdriver, turn the square tap handle so that the slot is in line with the direction of flow. Slot at right-angles to direction of flow = off. 6 720 644 144-01 .1O Fig.

  • Page 10: Turn On The Isolators

    10 | Preparing the appliance for use Turn on the isolators B Using a screwdriver, turn the square tap handle so that the slot is in line with the direction of flow. Slot at right-angles to direction of flow = off. 6 720 644 143-02.1O Fig.

  • Page 11: Opening The Control Panel Cover

    Preparing the appliance for use | 11 Opening the control panel cover Fig. 3 6 720 644 144 (2010/09)

  • Page 12: Check The Central Heating System Pressure

    12 | Preparing the appliance for use Check the central heating system pressure The normal operating pressure is 1 - 2 bar. If a higher setting is required, you will be informed by your installer. 6 720 644 144-03.1O Fig. 4 6 720 644 144 (2010/09)

  • Page 13: Top Up The Heating System

    Preparing the appliance for use | 13 Top up the heating system The way in which the heating system is topped up is different on every system. Therefore, you should ask your installer to show you how it is done. CAUTION: Risk of damaging the appliance.

  • Page 14: Operation

    14 | Operation Operation These Operating Instructions apply only to the boiler. Depending on the heating controller used, some functions may be controlled differently. The following possibilities for controlling the heating system may be employed: weather-dependent controller built into the boiler page 16, •...
  • Page 15 Operation | 15 Page 38 contains brief operation instructions. You can fold this outwards and push the operating instructions into the appliance facia for safekeeping. 6 720 613 086-04.1O Fig. 5 6 720 644 144 (2010/09)

  • Page 16: Overview Of Controls

    16 | Operation Overview of controls reset 6 720 644 144-04.1O Fig. 6 6 720 644 144 (2010/09)
  • Page 17 Operation | 17 Flow temperature control DHW temperature control Chimney sweep button Service button Burner ON indicator Main switch Here, a weather-compensated control unit or a time switch (accessories) can be plugged in Display Pressure gauge reset button eco button Holiday button Drain from pressure relief valve (heating circuit) Gas tap...

  • Page 18: Switching The Appliance On/Off

    18 | Operation Switching the appliance on/off Switching on B Switch appliance on at the main switch. The display shows the heating water flow temperature. Fig. 7 If the display shows alternately with the flow temperature, the appliance will operate with the lowest output for 15 minutes.

  • Page 19: Starting The Central Heating

    Operation | 19 Starting the central heating The maximum flow temperature can be matched to the heating system by the flow temperature controller. The current flow temperature is shown on the display. Setting on flow Flow Sample temperature temperature application controller Approx.
  • Page 20 20 | Operation B Turn flow temperature controller to adjust the maximum flow temperature. reset 6 720 644 143-27.1O Fig. 8 When the burner is firing, the green indicator lamp lights up. 6 720 644 144 (2010/09)

  • Page 21: Setting The Heating Control Unit

    Operation | 21 Setting the heating control unit Follow the operating instructions for the heating controller used. Those instructions will tell you B how to set the operating mode and the heating curve for weather-dependent controllers, B how to adjust the room temperature, B how to heat economically and save energy.

  • Page 22: Appliances With Hot Water Cylinder: Setting The Hot Water Temperature

    22 | Operation Appliances with hot water cylinder: setting the hot water temperature WARNING: Danger of scalding! B In normal operation, do not set the temperature higher than 60 °C. B Set the DHW temperature on the DHW temperature control The set DHW temperature flashes on the display for 30 seconds.
  • Page 23 Operation | 23 DHW thermostat DHW temperature Approx. 5 °C (frost protection) Approx. 55 °C Approx. 60 °C max. Approx. 70 °C Table 4 eco button Pressing and holding the eco button until it lights up switches between Comfort mode and Economy mode. Comfort mode, Eco button is not lit (default setting) In Comfort mode, the hot water cylinder has priority.

  • Page 24: Zwb Appliances - Setting Hot Water Temperature

    24 | Operation ZWB appliances - setting hot water temperature B Set the DHW temperature on the DHW temperature control The set DHW temperature flashes on the display for 30 seconds. reset 6 720 644 143-29.1O Fig. 11 DHW thermostat DHW temperature Approx.
  • Page 25 Operation | 25 eco button Pressing and holding the eco button until it lights up switches between Comfort mode and Economy mode. Comfort mode, (Eco button is not lit - default setting) The appliance is held constantly at the set temperature. This means that hot water is available almost instantaneously at the tap.

  • Page 26: Summer Mode (Central Heating Off, Dhw Only)

    26 | Operation Summer mode (central heating off, DHW only) B Note position of CH flow temperature control B Turn CH flow temperature control anti-clockwise as far as the stop The heating circuit pump and consequently central heating are switched OFF. However, the DHW supply as well as the power supply to the heating programmer and timer remain 'live'.

  • Page 27: Frost Protection

    Operation | 27 Frost protection Frost protection for the heating system: B Leave appliance switched on, set CH flow temperature control to position 1 at least. reset 6 720 644 143-31.1O Fig. 13 B Add anti-freeze to the heating water (see installation instructions) and drain the DHW circuit.

  • Page 28: Holiday Mode

    28 | Operation Holiday mode To switch on holiday mode: B Press and hold holiday button on the appliance until it lights up, and switch on holiday mode on the heating controller. In holiday mode, heating and DHW heating are switched off; frost protection remains active ( chap.

  • Page 29: 4.10 Further Displays

    Operation | 29 4.10 Further displays Display code Description Fault code ( chapter 7) Inspection due Pump anti-seize function active Trap filling function active Bleeding function active Excessively rapid increase in CH flow temperature (temp. gradient monitoring). Heating mode is disabled for two minutes. Drying function.

  • Page 30: Carry Out Thermal Disinfection

    30 | Carry out thermal disinfection Carry out thermal disinfection To prevent the DHW becoming contaminated by bacteria such as legionella, we recommend you pasteurise the system after longer idle periods. With some heating controllers, thermal disinfection can be programmed for a fixed time; see heating controller operating instructions.
  • Page 31 Carry out thermal disinfection | 31 B Turn hot water temperature control clockwise as far as the stop (approx. 70 °C). reset 6 720 644 143-33.1O Fig. 15 B Wait until the water reaches the maximum temperature. B Draw off water in turn from the nearest to the furthest hot water point until hot water has been running out at a temperature of 70 °C for 3 minutes.

  • Page 32: Tips On Saving Energy

    32 | 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 impact as low as possible. The gas supply to the burner is controlled according to the level of demand for heat.
  • Page 33 Tips on saving energy | 33 Thermostat Fully open the thermostat to ensure that the required room temperature is reached in all cases. Only after the required temperature has been reached and maintained for an extended period of time should you change the setting for the heating curve or the room temperature on the controller.

  • Page 34: Troubleshooting

    34 | Troubleshooting Troubleshooting All safety, modulation and control components are monitored by the Heatronic system. If a fault occurs during operation, a warning tone sounds. If you press a button, the warning tone stops. The display indicates a fault (e. g. ) and the reset-button may also flash.
  • Page 35 Troubleshooting | 35 Appliance details If you need to call Customer Services, it is helpful if you have the precise details of your appliance at hand. Those details can be found on the identification plate or identification sticker inside the control panel cover. Condens 5000 W (e.

  • Page 36: Maintenance

    36 | Maintenance Maintenance Inspection and maintenance The operator is responsible for the safety and environmental compatibility of the heating system (see local regulations). It is therefore recommended that you enter into a maintenance and inspection contract with an approved contractor that provides annual inspection and maintenance.

  • Page 37: Environment / Disposal

    Environment / disposal | 37 Environment / disposal Environmental protection is a fundamental corporate strategy of Bosch Group. The quality of our products, their economy and environmental safety are all of equal importance to us and all environmental protection legislation and regulations are strictly observed.

  • Page 38: Operating Instructions Quick Reference

    Operating instructions quick reference Operating instructions quick reference Switching on Domestic hot water temperature WARNING: Risk of scalding Do not set the temperature control to more than “e”. Switching on the central heating reset reset 6 720 644 143-28.1O 6 720 644 143-27.1O Eco button lit –...

  • Page 39: Index

    Index | 39 Index Appliance - Switching off................. 18 Carry out thermal disinfection ........... 30 Central heating - Switching on ..............19, 38 Comfort mode..............23, 25 Eco button ................23, 25 Economy mode ..............23, 25 Environment / disposal .............. 37 Explanation of model code ............
  • Page 40 40 | Index Packaging................... 37 Preparing the appliance for use........... 9 Product details ................8 - Explanation of model code ............. 8 Recycling..................37 Safety instructions............... 6 Setting the heating control unit..........21 Setting the hot water temperature - Appliances with hot water cylinder ........22 Summer mode ................
  • Page 41 | 41 Notes 6 720 644 144 (2010/09)
  • Page 42 42 | Notes 6 720 644 144 (2010/09)
  • Page 43 | 43 Notes 6 720 644 144 (2010/09)
  • Page 44 Australia Robert Bosch (Australia) Pty Ltd 1555 Centre Rd Clayton, VIC 3168 Phone 1300 30 70 37 Fax 1300 30 70 38 www.bosch.com.au/hotwater New Zealand Phone 0800 4 Bosch or 08 543 352 www.bosch.co.nz...

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