Viessmann VITOTRONIC 300 GW2 Operating Instructions And User's Information Manual
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Viessmann VITOTRONIC 300 GW2 Operating Instructions And User's Information Manual

Viessmann VITOTRONIC 300 GW2 Operating Instructions And User's Information Manual

Outdoor-reset logic digital boiler and heating circuit control unit
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Operating Instructions

and User's Information Manual
Vitotronic 300, Model GW2
Outdoor-reset logic digital boiler and
heating circuit control unit
VITOTRONIC 300
Certified as a component part
of Viessmann boilers only
5285 942 v1.4 05/2012
IMPORTANT
Read and save these instructions
for future reference.
1

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Summary of Contents for Viessmann VITOTRONIC 300 GW2

  • Page 1: Operating Instructions

    User’s Information Manual Vitotronic 300, Model GW2 Outdoor-reset logic digital boiler and heating circuit control unit VITOTRONIC 300 IMPORTANT Read and save these instructions Certified as a component part for future reference. of Viessmann boilers only 5285 942 v1.4 05/2012...

  • Page 2: General Information

    General information Safety, Installation and Warranty Requirements Please ensure that this manual is read and understood before commencing installation. Failure to comply with the issues listed below and details printed in this manual can cause product/property damage, severe personal injury, and/or loss of life.

  • Page 3: Table Of Contents

    Index Page Useful tips Introductory information For your safety ..................... Instructions in brief Ready for operation The main controls...

  • Page 4: Ready For Operation The Main Controls

    Ready for operation Ready for operation The main controls You can carry out all the settings on your heating system centrally on the control unit and on the built-in programming unit. If your system is equipped with remote controls, you can also use the remote controls for the settings.

  • Page 5: Overview Of Controls And Indicators

    Ready for operation Overview of controls and indicators Override switch (page 27) Heating circuit selector buttons (page 6) Display window Normal room temperature (page 8) Heating programs (page 7) Adjustable high limit Boiler temperature Fixed high limit Control Power (page 11) Fuses TÜV TEST button (for service purposes only)

  • Page 6: Select The Heating Circuit – Before Every Setting And Scanning Operation

    Ready for operation Overview of controls and indicators (continued) Other display symbols Adjustment of the display window (These are not displayed continuously, contrast but appear according to system type Open the hinged cover on the and operating status) programming unit, press and, at e Risk of freezing the same time, adjust the contrast...
  • Page 7 Ready for operation Selecting the heating program (daylight saving time) 1. Press the heating circuit selector button; the button is illuminated. 2. Select the required heating program The selected heating program with the rw, w or 9 button. appears in the display window for a short time.
  • Page 8 Ready for operation Changing the room temperature In the ”Heating and domestic hot water” heating program, heating takes place with alternating ”normal room temperature” and ”reduced room temperature” according to the selected time program (see page 12). You can set the required room temperature as follows. To change the ”normal room temperature”...
  • Page 9 Using the comfort functions Setting the party mode Switch on the party mode when you require heating and domestic hot water (if a DHW tank is installed) for a short time independently of the preset heating and time program. To activate the party mode 1.

  • Page 10: Activating The Energy Saving Mode

    Using the comfort functions Activating the energy saving mode The energy saving mode is only possible in the ”rw“ heating program. Switch on the energy saving mode when you require particularly economic heating for a short time. In the energy saving mode the preset room temperature is automatically lowered.

  • Page 11: Shutting Down The Heating System

    Switching on and off Starting up the heating system The initial start-up and matching of the control unit to local conditions and the structural characteristics of the building must be carried out by your heating contractor. 1. Check the pressure of the heating system on the pressure gauge.

  • Page 12: Settings Time Programs

    Settings Time programs You can select time programs for heating, domestic hot water (if a DHW tank is installed) and the DHW re-circulation pump (if installed). The DHW re-circulation pump ensures that hot water is available at the taps when required. A time program consists of 4 time cycles, i.e.
  • Page 13 Settings Time programs (continued) Changing and scanning the time program for heating 11. Open the hinged cover on the programming unit. 12. Press the heating circuit selector button; the button is illuminated. 13. ur Press ur; the ”Heating time If you wish to exit the time program”...
  • Page 14 Settings Time programs (continued) Changing and scanning the time program for heating (continued) To exit the setting mode at any time 1. ur Press ur; the display changes to ”Exit? Yes”. Press to confirm; the display changes and shows the boiler temperature. To scan the time cycles Follow the procedure described on page 13, but without using the...
  • Page 15 Settings Time programs (continued) Changing and scanning the time program for domestic hot water heating and the DHW re-circulation pump The automatic mode is selected in the time program for domestic hot water and the DHW re-circulation pump, i.e. domestic hot water heating takes place in parallel with the heating time program, but starts 30 minutes earlier.
  • Page 16 Settings Time programs (continued) Changing and scanning the time program for domestic hot water heating and the DHW re-circulation pump (continued) Press until one of Please note: the following displays If different time cycles are set for appears in the display individual days of the week and you DHW Time prog.
  • Page 17 Settings Time programs (continued) Changing and scanning the time program for domestic hot water heating and the DHW re-circulation pump (continued) To exit the setting mode at any time 1. uw Press uw; the display changes to ”Exit? Yes”. Press to confirm;...

  • Page 18: Changing The Domestic Hot Water Temperature

    Settings Time programs (continued) Changing and scanning the time program for domestic hot water heating and the DHW re-circulation pump (continued) Domestic hot water heating on a singular basis outside the programmed time cycle 1. Press the heating circuit selector button;...
  • Page 19 Settings Setting the energy saving mode for the holiday period (continued) When the ”w” heating program is set (see page 7), only freeze-up protection of the heating system takes place during the holiday program. Domestic hot water heating takes place according to the preset time program on the dates of your departure and return.

  • Page 20: Resetting The Time And Date

    Settings Resetting the time and date The time and date are preset in the factory and can be changed manually. 1. Open the hinged cover on the programming unit. Time 2. uý Press uý; the ”Time” appears in the display window.

  • Page 21: Changing The Heating Pattern Of The Boiler

    Settings Changing the heating pattern of the boiler The heating pattern of the boiler is influenced by the outdoor temperature and the settings of the ”shift” and ”slope” of the ”heating curve”. Heating curves represent the relationship between the outdoor temperature and the boiler water or supply temperature.
  • Page 22 Settings Changing the heating pattern of the boiler (continued) Changing the heating pattern by adjusting the heating curve 1. Open the hinged cover on the programming unit. 2. Press the heating circuit selector button; the button is illuminated. Slope 3. n Press n for ”Slope”...
  • Page 23 Settings Changing the heating pattern (continued) Change heating pattern if ... Action Example ... the boiler water temperature Adjust the slope of the heating is too low in the cold season curve upwards by one Slope increment ... the boiler water temperature Adjust the slope of the heating is too high in the cold season curve downwards by one...
  • Page 24 Settings Changing the heating pattern (continued) Change heating pattern if ... Action Example ... the boiler water temperature Adjust the slope of the heating is too high at transitionary curve upwards by one increment, Slope times of the year, but and the shift to a lower value adequate in the cold season (e.g.
  • Page 25 Scanning Scanning temperatures and operating status information You can scan various actual temperatures and operating status information depending on the system components connected and the settings made. User no. in conjunction with Vitotronic 050 heating circuit control unit Holiday program with dates of if entered departure and return Holiday program active...

  • Page 26: Troubleshooting Guide Special Displays

    Troubleshooting guide Special displays Please contact your heating contractor MService to arrange a service call. °C It is not possible to make settings on Example Remote control the control unit, only on the remote ”Normal room temperature” on control. the ”ts” selector knob can only be set on the remote control.

  • Page 27: Diagnosis And Correction

    Troubleshooting guide Diagnosis and correction If a fault occurs on the heating system, it will be indicated in the display DFault window and by the flashing red fault indicator (see page 5). Using the scan facility, you can read off the fault code yourself and inform your °C heating contractor accordingly.

  • Page 28: Troubleshooting Guide

    Troubleshooting guide Diagnosis and correction (continued) Fault Cause Remedy Heating system does not start up Heating system switch ”8” on the Switch on control unit turned to OFF Power supply disconnect switch, if Switch on power supply disconnect installed, is switched off switch Fuse in the domestic power circuit Inform heating contractor...
  • Page 29 Troubleshooting guide Diagnosis and correction (continued) Fault Cause Remedy Burner does not start; red fault Faulty start of burner Make a new attempt to start by indicator flashes on the control unit pressing the reset button on the (see page 5) and red fault lamp is front of the burner hood with illuminated on the burner pressure jet burners, on the front...

  • Page 30: Servicing/Cleaning Instructions And Note On Disposal Of Unwanted Equipment

    Servicing instructions Servicing/cleaning instructions and note on disposal of unwanted equipment Servicing Boiler Servicing of heating systems is All boilers have to be cleaned at certain required under current heating system intervals as the flue gas temperature regulations and standards (DIN 4755, and therefore the energy loss rise as DIN 4756 and DIN 1988-8).
  • Page 31 5285 942 v1.4...

  • Page 32: Additional Information

    +176 +194 +100 +212 +110 +230 Viessmann Manufacturing Company (U.S.) Inc. Viessmann Manufacturing Company Inc. 45 Access Road 750 McMurray Road Warwick, Rhode Island • 02886 • USA Waterloo, Ontario • N2V 2G5 • Canada Tel. (401) 732-0667 • Fax (401) 732-0590 Tel.

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