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Operating Instructions
and User's Information Manual
for use by heating contractor
Vitotronic 100, Model GC1
Digital boiler control unit
Vitotronic 300-K, Model MW1S
Outdoor-reset logic digital cascade control, for installation in Custom Control Panel
VITOTRONIC 100, GC1
VITOTRONIC 300-K, MW1S
Certified as a component part
of Viessmann boilers only
5581 751 v1.1 10/2010
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Table of Contents
Related Manuals for Viessmann GC1
Summary of Contents for Viessmann GC1
- Page 1 Operating Instructions and User’s Information Manual for use by heating contractor Vitotronic 100, Model GC1 Digital boiler control unit Vitotronic 300-K, Model MW1S Outdoor-reset logic digital cascade control, for installation in Custom Control Panel VITOTRONIC 100, GC1 VITOTRONIC 300-K, MW1S...
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Page 2: For Your Safety
The main controls The settings required for operating your heating system are made on the Vitotronic 100, GC1 of each boiler and on the Vitotronic 300-K, MW1S. If you system is equipped with remote controls, you can also use the remote... - Page 3 ............. Settings Changing the boiler water temperature (Vitotronic 100, GC1) ..
- Page 4 Ready for operation Overview of controls and indicators Vitotronic 100, GC1 Manual override Changing the boiler water temperature(without function in multi-boiler system) Changing the domestic hot water temperature (without function in multi-boiler system) Value selector buttons Information Confirmation button Factory settings (see below)
- Page 5 Ready for operation Overview of controls and indicators Vitotronic 300-K Heating circuit selector buttons (page 6) Display window Normal room temperature (page 9) Heating programs (page 8) Boiler sequence 1-23-4 Energy saving mode (page 11) Party mode (page 10) Hinged cover of programming unit Time program for central heating (page 13) Time program for domestic hot water...
- Page 6 Ready for operation Ready for operation Overview of controls and indicators Vitotronic 300-K, MW1S (continued) Adjustment of the display window Other display symbols (These are not displayed contrast Open the hinged cover on the continuously, but appear according prgramming unit, and press and, at to system type and operating status) the same time, adjust the contrast with...
- Page 7 The control units are preset in the factory to a standard operating mode. The heating system, is therefore ready for operation. You can change the factory settings to suit your individual preferences. Vitotronic 100, GC1 Heating Program The heating program is set for “Central heating and domestic hot...
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Page 8: Selecting The Heating Program (Winter, Summer)
Ready for operation Selecting the heating program (winter, summer) Vitotronic 300-K, MW1S Vitotronic 100, GC1 Select the required heating program When pressed, the corresponding with the button. button is illumintaed Central heating and domestic hot water The boiler is available to the heating... - Page 9 Ready for operation Selecting the heating program (winter, summer) Vitotronic 300-K, MW1S In the ”Central heating and domestic hot water” heating program, central heating takes place with alternating ”normal room temperature” and ”reduced room temperature” according to the selected time program. You can set the required room temperature as follows: To change the ”normal room temperature”...
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Page 10: Setting The Party Mode
Ready for operation Setting the party mode Vitotronic 300-K, MW1S Switch on the party mode when you require central 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 11: Activating The Energy Saving Mode
Ready for operation Activating the energy saving mode Vitotronic 300-K, MW1S The energy saving mode is only possible in the ”rw“ heating program. Switch on the energy saving mode when you require particularly economic central heating for a short time. In the energy saving mode the preset room temperature is automatically lowered. -
Page 12: Shutting Down The Heating System
6). If you want to switch off only one boiler in the heating system, select standby operation on the corresponding Vitotronic 100, GC1. If you do not want to use your heating system for a long period (several months), you should shut down the system. -
Page 13: Changing The Boiler Water Temperature
In a multi-boiler system with the Vitotronic 300-K, MW1S, the boiler water temperature is determined by the Vitotronic 300-K, MW1S for all boiler control units. It is not possible to make the setting on the Vitotronic 100, GC1. Selecting the time programs... - Page 14 Settings Selecting the time programs Vitotronic 300-K, MW1S (continued) Changing and scanning the time program for central heating 11. Open the hinged cover on the programming unit. 12. Press the heating circuit selector button; the button is illuminated. Press ; the ”Central If you wish to exit the time heating time program”...
- Page 15 Settings Selecting the time programs Vitotronic 300-K, MW1S (continued) Changing and scanning the time program for central heating (continued) To exit the setting mode at any time Press ; the display changes to ”Exit? Yes”. Press to confirm; the display changes and shows the boiler temperature.
- Page 16 Settings Selecting the time programs Vitotronic 300-K, MW1S (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 central heating time program, but starts 30 minutes earlier.
- Page 17 Settings Selecting the time programs Vitotronic 300-K, MW1S (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 phases are set for appears in the display individual days of the week and Time prog.
- Page 18 Settings Selecting the time programs Vitotronic 300-K, MW1S (continued) Changing and scanning the time program for domestic hot water heating and the DHW re-circulation pump (continued) To scan the time phases Follow the procedure described on page 15 and 16, but without using buttons.
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Page 19: Changing The Domestic Hot Water Temperature
Changing the domestic hot water temperature Vitotronic 300-K, MW1S In a multi-boiler system the Vitotronic 100, GC1 is without function. The domestic hot water temperature is set on the Vitotronic 300-K, MW1S. 1. Open the hinged cover on the Desired DHW temp. - Page 20 Settings Setting the energy saving mode for the holiday period (continued) Vitotronic 300-K, MW1S Vitotronic 300-K, MW1S 1. Open the cover on the programming unit. 2. Press the heating circuit selector button; the button is illuminated. Press ; the ”Holiday If you want to erase the holiday Departure date program”...
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Page 21: Resetting The Date And Time
Settings Resetting the date and time Vitotronic 300-K, MW1S The time and date are preset in the factory and can be changed manually. There is no need for manual resetting in conjunction with a radio clock receiver (accessory). 1. Open the hinged cover on the programming unit. - Page 22 Settings Boiler sequence selection control Vitotronic 300-K, MW1S Actual boiler sequence Boiler sequence The digits shown in the basic display show the boiler numbers of the connected boilers in the current actual boiler sequence. The hyphens between the boiler numbers indicate the status of each boiler. 1-23-4 The boilers in front of the first hyphen are those which are activated by the Vitotronic 300-K, MW1S...
- Page 23 Settings Changing the heating pattern Vitotronic 300-K, MW1S Vitotronic 333, MW1S 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 24 Settings Changing the heating pattern Vitotronic 300-K, MW1S Vitotronic , MW1S Changing the heating pattern 1. Open the hinged cover on the programming unit. 2. Press the heating circuit selector button; the button is illuminated. Slope Press for ”Slope” As a guide, please refer to the table headed ”Change heating Press for ”Shift”.
- Page 25 Settings Changing the heating pattern (continued) Vitotronic 300-K, MW1S Vitotronic , MW1S Change heating pattern if ... Action Example ... not enough heat is generated in Adjust the slope of the heating the cold season curve upwards by one increment Slope ...
- Page 26 Scanning Scanning temperatures and operating status information Vitotronic 100, GC1 You can scan various actual temperatures and operating status information depending on the system components connected: Data Meaning Please note displayed 0__01 LON user number Equipment number within the LON system 3__65.
- Page 27 Scanning Scanning temperatures and operating status information Vitotronic 300-K, MW1S You can scan various actual temperatures and operating status information depending on the system components connected and the settings made. User no. Equipment number within the LON system Holiday program if entered with dates of departure and return Holiday program active...
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Page 28: Special Displays
Troubleshooting guide Special displays Vitotronic 300-K, MW1S 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. -
Page 29: Diagnosis And Correction
Troubleshooting guide Diagnosis and correction Vitotronic 100, GC1 If a fault occurs on a boiler, it will be indicated in the display window and by the flashing red fault lamp (see page 5). In the display window you can read off the fault code yourself and inform your heating contractor accordingly. - Page 30 Troubleshooting guide Diagnosis and correction Vitotronic 100, GC1 Burner does not switch on Heating program ”9” is set (the Set ”rw” heating program (page corresponding button is illuminated) Vitoair draught stabilizer defective Inform heating contractor. (only on boilers with pressure jet...
- Page 31 Troubleshooting guide Diagnosis and correction Vitotronic 300-K, MW1S If a fault occurs on the heating system, it will be indicated in the display DFault window and by the flashing red fault lamp (see page 5). Using the scan facility, you can read off the fault code yourself and inform °C your heating contractor accordingly.
- Page 32 Troubleshooting guide Diagnosis and correction Vitotronic 300-K, MW1S (continued) Fault Cause Remedy Heating circuits does not start up Power supply disconnect switch, Switch on power supply disconnect if installed, is switched off switch Heating program ”9” is set Set ”rw” or “w“ heating program (corresponding button is illuminated) (page 6) Fuse in the domestic power circuit...
- Page 33 Troubleshooting guide Troubleshooting guide Diagnosis and correction (continued) Vitotronic 300-K, MW1S Fault Cause Remedy The rooms are cold during the day Time incorrectly set Set correct time (page 20) but warm at night Control unit incorrectly programmed Check and, if necessary, correct the or set settings for the temperatures (page 8), the time program (page 12) and...
- Page 34 Additional information Notes...
- Page 35 Additional information Notes...
- Page 36 +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.