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Summary of Contents for Viessmann Vitoradial 300-T VR3
- Page 1 VIESMANN Service instructions for contractors Vitoradial 300-T Type VR3, 101 to 335 kW Condensing boiler with heat exchanger VITORADIAL 300-T Please keep safe. 5692820 GB 9/2018...
- Page 2 Danger system. Hot surfaces and fluids can lead to burns or Replace faulty components only with genuine scalding. Viessmann spare parts. Before maintenance and service work, switch ■ OFF the appliance and let it cool down. ■ Never touch hot surfaces on the boiler, burner,...
- Page 3 For replacements, use only original spare parts supplied or approved by Viessmann. Safety instructions for operating the system If you smell gas Condensate Danger...
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Page 4: Table Of Contents
Index Index Information Symbols ....................Intended use ..................Product information ................Commissioning, inspec- Steps - commissioning, inspection and maintenance ......tion, maintenance Parts lists Ordering parts ..................21 Boiler part 1 ................... 22 Boiler part 2 ................... 24 Heat exchanger ..................26 Heat exchanger insulation and casing ........... -
Page 5: Intended Use
Information Symbols The steps in connection with commissioning, inspec- Symbol Meaning tion and maintenance are found in the "Commission- Reference to other document containing ing, inspection and maintenance" section and identified further information as follows: Step in a diagram: Symbol Meaning The numbers correspond to the order in Steps required during commissioning... -
Page 6: Product Information
Information Product information Vitoradial 300-T, type VR3 ■ Fuels: Fuel oil and natural gas ■ Permissible operating pressure 4 bar (0.4 MPa) ■ Rated heating output 111 to 335 kW... - Page 7 Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance Commissioning steps Inspection steps Maintenance steps Page • 1. Settings at the boiler control unit..................• 2. Checking the connections of the neutralising system and filling with neutralising agent • • •...
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Page 8: Commissioning The System
Commissioning, inspection, maintenance Settings at the boiler control unit Make the settings according to the information in chap- ter "Additional information, coding" in the control unit service instructions. Checking the connections of the neutralising system and filling with neutralising agent Commissioning the system Operating and service instructions for the control 11. -
Page 9: Shutting Down The System
Commissioning, inspection, maintenance Shutting down the system Danger There is a risk of injury when working on pres- surised components. Only open the connections on the heating water side after the boiler has been depressurised. Only drain the boiler with a suction pump when the air vent valve is open. -
Page 10: Cleaning The Internal Pipes And Heating Surface
Commissioning, inspection, maintenance Cleaning the internal pipes and heating surface Fig. 2 1. Remove internal pipes using internal pipe 3. Remove combustion residues from the flue pipe extractor and the flue outlet through the cleaning aperture in the flue outlet using a vacuum cleaner. See 2. -
Page 11: Inserting The Internal Pipes
Commissioning, inspection, maintenance Inserting the internal pipes Fig. 3 Insert internal pipes as far as they will go. Fitting the boiler door Fig. 4 Close the door: Tighten screws crosswise to 25 Nm. -
Page 12: Checking The Function Of The Safety Equipment
Commissioning, inspection, maintenance Fitting the boiler door (cont.) Danger Escaping gas leads to a risk of explosion. Check the boiler door for tightness. Checking connections and sensor well on the heating water side for tight- ness Checking the function of the safety equipment Check the safety valves, the water level and pressure limiters in accordance with manufacturer's details. - Page 13 Commissioning, inspection, maintenance Checking the expansion vessel and system… (cont.) Expansion vessel 1. Drain the system until the pressure gauge indi- 2. If the pre-charge pressure of the expansion vessel cates "0" or close the cap valve on the expansion is lower than the static system pressure, top up vessel and reduce the pressure in the expansion with nitrogen until the pre-charge pressure is 0.1 to...
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Page 14: Checking The Heat Exchanger Gasket
Commissioning, inspection, maintenance Checking the heat exchanger gasket Removing the cover panel 4,8 x 9,5 Fig. 5 Cover plate... - Page 15 Commissioning, inspection, maintenance Checking the heat exchanger gasket (cont.) Removing the top panels Fig. 6 Removing the back panel 3,9 x 9,5 Fig. 7 Back panel...
- Page 16 Commissioning, inspection, maintenance Checking the heat exchanger gasket (cont.) Removing the heat exchanger cover Fig. 8 1. Cut open the fabric lining on the cover at lower per- 4. Remove gasket and clean the sealing face. foration (outer ring). Assembly 2.
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Page 17: Checking The Water Quality
Commissioning, inspection, maintenance Cleaning the flue outlet and heat exchanger Fig. 9 1. Remove condensate hose and stench trap from 4. Coat the heat exchanger coil with cleaning agent the heat exchanger. (e.g. Fauch 400/410) through cleaning aperture and proceed in accordance with the cleaning agent 2. -
Page 18: Cleaning The Sight Glass In The Boiler Door
Commissioning, inspection, maintenance Cleaning the sight glass in the boiler door Fig. 10 Check the gaskets and hose connection for leaks. Checking the mixer for ease of operation and tightness 1. Remove the motorised lever from the mixer han- 3. Check the mixer for leaks. Replace the O-rings if dle. -
Page 19: Adjusting The Burner
Commissioning, inspection, maintenance Adjusting the burner Burner service instructions or separate docu- Rated combus- Pressure drop on the hot gas mentation by the burner manufacturer tion heating out- side put Q Adjust the maximum oil throughput of the burner to the mbar rated boiler heating output. -
Page 20: Instructing The System User
Commissioning, inspection, maintenance Adjusting the burner (cont.) Operation with burner load < 40 % The minimum system temperatures (flow/return) are 55/45 °C for oil operation and 65/55 °C for gas opera- tion. Instructing the system user The installer must instruct the user in the operation of the system. -
Page 21: Ordering Parts
Parts lists Ordering parts The following information is required: ■ Serial no. (see boiler type plate) ■ Position number of the part (from this parts list) Parts not shown Installation instructions Service instructions Thermal insulation fixings Touch-up spray paint, Vitosilver Touch-up paint stick, Vitosilver Flame tube gasket Accessories not shown... -
Page 22: Boiler Part 1
Parts lists Boiler part 1 Fig. 11 Boiler control unit, see parts list in the service instructions of the boiler control unit... - Page 23 Parts lists Boiler part 1 (cont.) Pos. Part Boiler door Studs Sight glass, comprising: Pos. 004 to 007 Sight glass frame Gasket Hose nozzle Plastic hose Hose pack Ø 18 mm Thermal insulation block Thermal insulation mat Packing GF 20 x 15 mm Cleaning brush wearing part Cleaning equipment (accessory) Front panel, top...
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Page 24: Boiler Part 2
Parts lists Boiler part 2 Fig. 12 Type plate, boiler, either on the r.h. or l.h. side (attach boiler and heat exchanger type plates to the same side) Burner cable, see parts list in the service instruc- tions of the boiler control unit Therm-Control temperature sensor... - Page 25 Parts lists Boiler part 2 (cont.) Pos. Part Internal pipe Gasket Cleaning cover Packing Sensor well, boiler water temperature sensor Therm-Control sensor well Front panel, bottom Back panel, top Back panel, bottom Side panel, front right, with logo (pos. 306) Side panel, front left Thermal insulation jacket Thermal insulation mat, back...
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Page 26: Parts Lists
Parts lists Heat exchanger Fig. 13... - Page 27 Parts lists Heat exchanger (cont.) Pos. Part Heat exchanger Tension rod Stench trap Gasket Cleaning cover Seal ring Adaptor ring Retaining bracket Boiler flue connection Flow line Return line, front Return line, back Shut-off valve Pump Support sleeve Locking ring fitting Temperature controller Heat exchanger flow pipe Heat exchanger return pipe...
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Page 28: Heat Exchanger Insulation And Casing
Parts lists Heat exchanger insulation and casing Fig. 14 Type plate... - Page 29 Parts lists Heat exchanger insulation and casing (cont.) Flue gas collector thermal insulation Cover, thermal insulation Thermal insulation jacket Thermal insulation, flange Frame, flue gas collector Cover, flue gas collector Side panel Front panel Back panel Cover panel, back panel Top panel, right Top panel, left Frame corner bracket...
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Page 30: Water Quality
Water quality Water quality requirements Note Observing the following requirements is necessary to safeguard your warranty rights. The warranty excludes damage due to corrosion and scaling. Prevention of damage due to scaling Prevent excessive scale build-up (calcium carbonate) on the heating surfaces. For heating systems with operating temperatures up to 100 °C, VDI Guideline 2035 Part 1 "Prevention of damage in water heating installations - Scale formation in domestic hot water... -
Page 31: Prevention Of Damage Due To Corrosion On The Water Side
Water quality Water quality requirements (cont.) Failure to observe the requirements of VDI Guideline This measure must be carried out by a qualified con- 2035 can result in damaging limescale deposits. In tractor. Inspect the heating system for possible dam- such cases, the service life of the installed boilers will, age prior to returning it into use. -
Page 32: Water Quality
Commissioning/service reports Water quality Meter Fill and top- Total water Total hardness pH value Water treatment Date reading up water volume Feedwater Boiler wa- Medium Metering volume Maintenance/service Commissioning Maintenance/service Maintenance/service Date: Commissioning Maintenance/service Maintenance/service Date: Commissioning Maintenance/service Maintenance/service Date:... - Page 33 Commissioning/service reports Maintenance/service (cont.) Commissioning Maintenance/service Maintenance/service Date: Commissioning Maintenance/service Maintenance/service Date:...
- Page 34 Specification Specification Rated heating output = 50/30 °C 101 129 157 201 263 335 425 = 80/60 °C 94 120 146 188 245 313 407 Rated heat input 97 124 151 194 254 323 420 CE designation CE-0035BU104 Permissible flow temperature (= safety temperature) °C Permiss.
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Page 35: Final Decommissioning And Disposal
Decommissioning and disposal Final decommissioning and disposal Viessmann products can be recycled. Components For decommissioning the system, isolate the system and substances from the system are not part of ordi- from the power supply and allow components to cool nary household waste. -
Page 36: Eu Declaration Of Conformity
Manufacturer's certificate We, Viessmann Werke GmbH & Co. KG, D-35107 Allendorf, confirm that the product Vitoradial 300, type VR3, complies with the following conditions stipulated by the 1st German Immissions Order (BImSchV): ■ limits according to paragraph 6 (1) ■... -
Page 37: Keyword Index
Keyword index Keyword index Boiler door Operating and service documents......20 – Fitting...............11 Operation, partial load..........19 – Opening..............9 Operation with burner load.........19 Boiler water requirements.......... 30 Burner adjustment............19 Parts................21 Parts list Expansion vessel............12 – Boiler............... 22 – Heat exchanger............26 Pressure switch function, checking...... - Page 40 Viessmann Werke GmbH & Co. KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB Fax: +49 6452 70-2780 Telephone: +44 1952 675000 www.viessmann.com Fax: +44 1952 675040 E-mail: info-uk@viessmann.com...
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