Safety instructions Safety instructions ¨ Please follow these safety instructions closely to prevent accidents and material losses. Safety instructions explained Regulations ¨ Danger Observe the following when working This symbol warns against the on this system H all legal instructions regarding the risk of injury.
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H Ventilate the boiler room. Replace faulty components H Close the gas shut−off valve. only with original Viessmann spare parts. Working on the heating system Ancillary components, spare and H When using gas as fuel, also close wearing parts the main gas shut−off valve and...
Initial start−up, inspection and maintenance Steps Initial start−up, inspection and maintenance For further instructions on individual steps, see pages indicated. Commissioning steps Inspection steps Maintenance steps Page 1. Starting the heating system ..........2.
Initial start−up, inspection and maintenance Further details regarding the individual steps Starting the heating system Operating instructions, service instructions control unit and burner 1. Check that the boiler room 3. Open the check valves. ventilation aperture is open. 4. Top up your heating system with 2.
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Initial start−up, inspection and maintenance Further details regarding the individual steps (cont.) Closing the Vitoair draught stabiliser (if installed) 1. Press rotary selector A on the Vitoair motor and turn it to position 5. 2. Lock the control disc with latch B.
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Initial start−up, inspection and maintenance Further details regarding the individual steps (cont.) Opening the boiler door and removing/cleaning the turbulators Note In case of gas burners, remove the gas supply pipe. A Turbulators (see page 15)
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Initial start−up, inspection and maintenance Further details regarding the individual steps (cont.) Cleaning the heating surface, flue outlet and flue pipe A Cleaning brush (accessories)
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Initial start−up, inspection and maintenance Further details regarding the individual steps (cont.) Inserting the turbulators and closing the boiler door Note Refit the gas supply pipe to the gas burner. ¨ Danger Escaping gas can lead to explosions which may result in serious injury. Check all gas connections for soundness.
Initial start−up, inspection and maintenance Further details regarding the individual steps (cont.) Checking the diaphragm expansion vessel and system pressure Observe the diaphragm expansion vessel manufacturer’s instructions. Carry out this test on a cold system. 1. Drain the system until the 3.
Initial start−up, inspection and maintenance Further details regarding the individual steps (cont.) Adjusting the burner Burners up to 63 kW Burner and control unit service instructions Burners from 80 kW Adjust the max. burner oil or gas Two−stage throughput so that the stated maximum rated boiler output will The following minimum output not be exceeded.
206 Rear thermal insulation mat 207 Front panel 208 Retaining bracket 209 Rear top panel 210 R.h. side panel 211 Vitorond 100 logo Only for 50 kW. 212 Edge protector Only for 40 kW. 213 Cover (accessory for third party Only for 40 to 63 kW.
Appendix Specification Rated output Product ID according to Efficiency Directive CE 0645 AU 114 according to Gas Equipment Directive CE 0197 AU 21 Hot gas pressure drop mbar 0.08 0.10 0.13 0.25 0.45 Required draught mbar 0.05 0.05 0.05 0.05 0.05 Flue gas parameters Temperature...
Low temperature (LT) boilers The product parameters determined as system values for the product Vitorond 100 as part of EC type testing according to the Efficiency Directive (see specification table) can be utilised to assess the energy consumption of heating and ventilation equipment to DIN V 4701 10 which is specified by the EnEV.