Safety instructions Safety instructions Please follow these safety instructions closely to prevent accidents and material losses. Safety instructions explained & the Code of Practice of relevant trade associations, Danger & all current safety regulations as This symbol warns against the defined by DIN, EN, DVGW, TRGI, risk of injury.
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Instal- charge static loads. ling non-authorised compo- nents and non-approved modifications/conversion can compromise safety and may invalidate our warranty. For replacements, use only ori- ginal spare parts from Viessmann or those which are approved by Viessmann.
Commissioning, inspection, maintenance Steps – commissioning, inspection and maintenance For further information regarding the individual steps, see the page indicated Commissioning steps Inspection steps Maintenance steps Page • 1. Checking the high limit safety cut-out setting ... •...
Commissioning, inspection, maintenance Steps – commissioning, inspection and . . . (cont.) Commissioning steps Inspection steps Maintenance steps Page • 21. Checking the boiler room ventilation • 22. Checking the function of the flue gas system • • 23. Adjusting the burner .
Commissioning, inspection, maintenance Further details regarding the individual steps Checking the high limit safety cut-out setting The high limit safety cut-out must not Control unit installation and be set higher than 110 °C; if required, service instructions set it to a maximum of 110 °C. Filling the heating system with water and venting the system Record the fill volume, water hard- Please note...
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 7. Check the function of the neutralis- 8. Check all gaskets/seals and plugs ing system. and retighten, if necessary. Neutralising system operat- Note ing instructions We recommend you check all heat- ing water connections after approx.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Undo M 10 nut A on lever B of 3. Lock the rotary damper with M 10 rotary damper C. nut. 2. Adjust the lever until all pulsating 4. Readjust the burner, if required. noises have ceased (the lever mir- rors the damper position).
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Clean the inside of the condensate 4. Connect the drain hose to the con- drain with a plastic brush. densate drain and run to a sewer. Cleaning the combustion chamber and heating surfaces Please note 2.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking gaskets and thermal insulation components 1. Check gaskets and the packing 2. Check the thermal insulation com- cord in the boiler door for damage. ponents of the boiler door for possi- ble damage.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the diaphragm expansion vessel and system pres- sure Note Observe the diaphragm expansion vessel manufacturer's instructions. Carry out this test on a cold system. Pump controlled pressure maintaining systems Note Carry out all checks in accordance In heating systems with automatic...
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Diaphragm expansion vessel 1. Drain the system or close the cap 2. If the inlet pressure of the dia- valve on the diaphragm expansion phragm expansion vessel is lower vessel and reduce the pressure, than the value calculated according until the pressure gauge indicates to the adjacent formula, top up with...
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the flue gas header for soundness 1. Visually inspect the gasket through 2. If required, retighten the gasket at clean-out aperture A on the flue clamping clips B. gas collector. Traces of conden- sate on the outside of the flue gas header indicate a leak.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Cleaning the sight glass in the boiler door Check gaskets A and hose connec- tion B for leaks. Closing the boiler door 1. Tighten the screws on the boiler 2. Install the gas supply pipe and door evenly and diagonally.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Check the water quality Enter the volume of top-up water, the water hardness and the pH value in the tables. For water quality requirements, see page 30. Fill water Top-up water Count Total water Date...
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Total hardness pH value Water treatment Date Feedwater Boiler Boiler Medium Metering water water volume The pH value should be between 8.2 and 9.5. Cleaning and reconnecting the condensate drain system The condensate drain, siphon, neutralising system and all intermediate hoses and pipes are part of the condensate drain system.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. For de-watering, remove drain 5. Connect the line with a U-bend to hose A from the condensate the condensate drain and fill with drain. water or fit a siphon and fill that with water.
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Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Operating and service documents 1. Complete and detach the customer 2. File all parts lists, operating and registration card: service instructions in the folder & Hand the system user this part and hand this over to the system for safekeeping.
Parts lists Parts lists When ordering spare parts: 209 Front panel, centre Quote the type and serial no. (see 210 Front panel, bottom type plate) and the item no. of the 211 Back panel, top required part (as per this parts list). 214 Side panel, bottom Obtain standard parts from your local 215 Side panel, top...
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Parts lists Parts lists (cont.) A Type plate, optionally on the r.h. or l.h. side B Boiler circuit control, see separate parts list C Burner cable, see separate parts list...
Commissioning/service reports Commissioning/service reports Commissioning Service Service date: Service Service Service date: Service Service Service date: Service Service Service date: Service Service Service date:...
Specification Specification Rated output = 40/30 °C = 80/60 °C Rated thermal load 234.5 297 385.5 Product ID CE-0085 AQ 0257 Flue gas parameters Temperature (at return temp. 30 °C) & at rated output °C & at partial load °C Temperature (at return °C temp.
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Specification Water quality requirements (cont.) Prevention of damage due to scaling Excessive scale deposits (calcium carbonate) on the heating surfaces should be prevented. For heating systems with operating temperatures up to 100 °C, the VDI Directive 2035 sheet 1 "Prevention of heating system damage – scaling in DHW and hot water heating systems"...
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Specification Water quality requirements (cont.) Operating information: & In multi-boiler systems, start all boi- & During expansion or repair work, lers simultaneously to prevent the only drain the necessary pipework entire lime deposit settling in the sections. heat transfer area of just one boiler. &...
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Specification Water quality requirements (cont.) Prevention of damage due to corrosion on the water side The corrosion resistance of ferrous The use of permeable components, e. materials on the heating water side of g. plastic pipes that are permeable to heating systems and boilers depends gas in underfloor heating systems, on the absence of oxygen in the heat-...
The product characteristics determined as system values for the product Vitocrossal 300 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 [Germany].
Certificates Manufacturer's certificate according to the 1st BImSchV [Germany] We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf confirm, that the fol- lowing product exceeds the efficiency of 91 % required by the 1st BImSchV paragraph 7 (3) [Germany] Boiler and burner unit...
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