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VIESMANN Operating instructions for the system user Heating system with Vitotronic 100 control unit, type HC1B, for operation with a constant boiler water temperature VITODENS VITOPEND Please keep safe. 5592683 GB 10/2020...
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Safety instructions For your safety Please follow these safety instruc- tions closely to prevent accidents and material losses. Safety instructions explained Danger Note This symbol warns against the risk Details identified by the word "Note" of injury. contain additional information. Please note This symbol warns against the risk of material losses and environmen-...
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Safety instructions For your safety (cont.) Work on the appliance Auxiliary components, spare and wearing parts All settings and work on the appliance ■ must be carried out as specified in Please note these operating instructions. Components not tested with the Further work on the appliance may be heating system may damage the carried out only by authorised contrac-...
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Safety instructions For your safety (cont.) If you smell flue gas Installation room requirements Danger Danger Flue gas can lead to life threatening Sealed vents result in a lack of poisoning. combustion air. This leads to incom- Shut down the heating system. plete combustion and the formation ■...
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Safety instructions For your safety (cont.) Danger The simultaneous operation of the boiler and appliances that extract air to the outside can result in life threatening poisoning due to a reverse flow of flue gas. Take suitable steps to ensure an adequate supply of combustion air.
Index Index 1. Introductory information Symbols ....................Terminology ................... Intended use ..................Product information ................Commissioning ..................Your system is preset ................Energy saving tips ................. 10 Tips for greater comfort ................. 10 2. About the controls Operating principles ................11 Programming unit ................
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Index Index (cont.) Rooms are too hot ................. 25 There is no hot water ................26 The DHW is too hot ................26 " " flashes .................... 26 ã " " flashes .................... 27 " " flashes .................... 27 ë "- - EP - -"...
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Introductory information Symbols Symbol Meaning Reference to other document containing further information Step in a diagram: The numbers correspond to the order in which the steps are carried out. Warning of material losses and environ- mental pollution Live electrical area Pay particular attention.
Introductory information Intended use (cont.) Incorrect usage or operation of the appliance (e.g. the appliance being opened by the system user) is prohibi- ted and will result in an exclusion of liability. Incorrect usage also occurs if the components in the heating system are modified from their intended use (e.g.
Introductory information Energy saving tips Saving energy when using central heating Saving energy on DHW heating Do not overheat your rooms; you can save up to 6 % Do not set the DHW temperature too high: See ■ ■ on your heating bills for every degree you reduce page 15.
About the controls Operating principles Programming unit You can change any setting on your heating system Note centrally at the programming unit of the control unit. The programming unit can be placed in a wall mount- ing base. The wall mounting base is available as an accessory.
About the controls How to use the controls (cont.) Messages Central heating Service message Heating circuit pump running The service interval has expired. Cylinder loading pump running. ý Fault message In conjunction with a solar thermal system: Burner fault message Solar circuit pump running.
Central heating Settings for central heating If you require central heating, check the following ■ Have you set the correct operating program? points: For settings, see page 13. Have you set the required room temperature? ■ Operating instructions for room temperature Operating instructions for room temperature controller controller...
Central heating Switching off central heating (cont.) You do not want to heat any rooms or DHW. Press the following buttons: until " " flashes. for settings; " " flashes. 5. OK to confirm; central heating and DHW heating are disabled, frost protection monitoring is acti- 2.
DHW heating Settings for DHW heating If you want DHW heating, check the following points: ■ Have you set the correct operating program? ■ Have you set the required DHW temperature? For settings, see page 15. For settings, see the next chapter. Setting DHW temperature Set the target DHW temperature for the DHW cylinder.
DHW heating Switching off DHW heating (cont.) You do not want to heat any rooms or DHW. Press the following buttons: until " " flashes. for settings; " " flashes. 5. OK to confirm; DHW heating and central heating are disabled, frost protection monitoring is acti- 2.
Further adjustments Setting the temperature unit (°C/°F) Factory setting: °C 3. OK to confirm; " " flashes. Press the following buttons: 4. / for required temperature unit (°C or °F). for settings; " " flashes. 5. OK to confirm; the new temperature unit is saved. for "...
DHW temperature, top Only if 2 cylinder temperature sensors are connected. º DHW temperature, bottom º Collector temperature In conjunction with Viessmann solar control module º DHW temperature with solar op- In conjunction with solar thermal system □ º eration...
Meaning Notes 0 0 0 5 0 6 Pump starts, output 22 In conjunction with Viessmann solar control module: Only if a second circulation pump is connected. Pump starts can be reset to "0" with " ". 0 0 2 8 5 0...
Calling up Checking fault messages (cont.) Example: 1. Inform your contractor of the fault code. This ena- Fault code shown: "50" bles the contractor to be better prepared and may save additional travelling costs. ã 2. Acknowledge the fault message with OK. The " " symbol no longer flashes.
Multi boiler systems Special considerations for multi boiler systems In systems with several boilers (multi boiler systems), Operating program in multi boiler systems each boiler is equipped with its own control unit. These control units are regulated by a higher control unit. Set- "...
Emissions test mode Activating emissions test mode Activating emissions test mode Emissions test mode should only be activated by your 4. OK to start the burner for checking; ON will be dis- flue gas inspector during the annual inspection. played constantly. Emissions test mode is activated for flue gas measure- If FL and "...
Switching on and off Control unit controls °C Fig. 9 Fault indicator (red) ON/OFF switch ON indicator (green) Pressure gauge (pressure indication) Reset button Switching off the heating system Switching off heat generation with frost protection monitoring (standby mode) Select operating program " " for frost protection moni- Ending operating program "...
Switching on and off Switching off the heating system (cont.) 3. Isolate the heating system from its main power Information on prolonged shutdown supply, e.g. at the separate MCB/fuse or at a As the circulation pumps no longer run for a longer mains isolator.
What to do if... Rooms are too cold Cause Remedy The heating system is switched off. Turn on the ON/OFF switch " ": See page 23. ■ Switch on the mains isolator, if installed (outside the ■ boiler room). Switch on the fuse in the power distribution board ■...
What to do if... There is no hot water Cause Remedy The heating system is switched off. Turn on the ON/OFF switch " ": See page 23. ■ Switch on the mains isolator if installed (outside the ■ boiler room). Switch on the fuse in the power distribution board ■...
What to do if... " " flashes Cause Remedy Heating system fault Press "R": See page 24. Acknowledge the fault message with OK: See page 19. Danger If faults are not rectified, they can have life threatening consequences. Do not acknowledge fault messages several times in quick succession.
Repair work Cleaning The appliance surfaces can be cleaned with a com- You can clean the front of the programming unit with a mercially available domestic cleaning agent (non- microfibre cloth. scouring). Inspection and maintenance The inspection and maintenance of a heating system Regular maintenance ensures trouble-free, energy effi- is prescribed by the German Energy Saving Ordinance cient, environmentally responsible and safe heating.
If there is damage to the connecting cables or lines of the appliance or externally installed accessories, these must be replaced with special cables or lines. Only use Viessmann cables / lines as replacement. For this, notify your qualified contractor.
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Terminology Standby mode Heat generation is switched off. Only frost protection of heat generator and DHW cylin- der is active. No central heating, no DHW heating Setback mode (reduced heating mode) See "Reduced heating mode". Constant temperature mode In constant temperature mode, the heating water is constantly heated to the selected boiler water tempera- ture.
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Terminology (cont.) Mixer Hot heating water from the heat generator is mixed with cooled heating water from the heating circuit. The heating water, thus brought to the required tempera- ture, is pumped to the heating circuit by the heating cir- cuit pump.
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(Altstoff Recycling Austria AG, licence num- ber 5766). Final decommissioning and disposal of the heating system Viessmann products can be recycled. Components and fluids from your heating systems are not part of ordinary domestic waste. Please speak to your contractor about the correct dis- posal of your old system.
Keyword index Keyword index Fault 25, 26, 27 Actual temperature.............30 – ...............25, 26 ã Actual temperature, checking........18 – ...............25, 27 Additional settings............11 – Rectifying..............25 Appliance, switching on..........24 Fault indicator.............23 Fault message............12 Fault messages Boiler number.............21 – Acknowledging............19 Boiler water temperature........13, 30 –...
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Keyword index Keyword index (cont.) Operating program......... 11, 30, 31 Shutdown..............23 – Central heating, DHW..........12 Solar thermal system..........31 – DHW heating............15 Standard setting............17 – For central heating..........13 Standby mode......10, 11, 12, 13, 16, 23, 30 –...
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Your contact Contact your local contractor if you have any questions about your system or wish to arrange maintenance or repair work. You can find local contractors on the internet at www.viessmann.de. Viessmann Werke GmbH & Co. KG Viessmann Limited...
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