Viessmann VITOCROSSAL 200 Service Instructions Manual
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Viessmann VITOCROSSAL 200 Service Instructions Manual

Gas condensing boiler with matrix cylinder burner
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VIESMANN
Service instructions
for contractors
Vitocrossal 200
Type CM2, 400 to 620 kW
Gas condensing boiler with MatriX cylinder burner
For applicability, see the last page
VITOCROSSAL 200
Please keep safe.
5794 780 GB
4/2013

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Summary of Contents for Viessmann VITOCROSSAL 200

  • Page 1 VIESMANN Service instructions for contractors Vitocrossal 200 Type CM2, 400 to 620 kW Gas condensing boiler with MatriX cylinder burner For applicability, see the last page VITOCROSSAL 200 Please keep safe. 5794 780 GB 4/2013...
  • Page 2 Safety instructions Safety instructions Please follow these safety instructions closely to prevent accidents and mate- rial losses. Safety instructions explained ■ The system must be commissioned by the system installer or a qualified per- Danger son authorised by the installer. This symbol warns against the ■...
  • Page 3 Replace faulty components only ■ Shut off the electricity supply to with original Viessmann spare the building from a safe place parts. (outside the building). If you smell flue gas Danger Flue gas can lead to life-threat- ening poisoning.
  • Page 4 Installing non-author- ised components and making non-approved modifications or conversions can compromise safety and may invalidate our warranty. For replacements, use only orig- inal spare parts supplied or approved by Viessmann.

  • Page 5: Table Of Contents

    Index Index Product information Intended use......................Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance.......... Further details regarding the individual steps............Air pressure switch.................... 46 Burner control unit..................... 48 Troubleshooting Fault display......................56 Fault codes......................57 Faults without fault display................... 64 Burner control unit flow chart................

  • Page 6: Product Information

    Product information Intended use The appliance is only intended to be installed and operated in sealed unven- ted heating systems that comply with EN 12828, with due attention paid to the associated installation, service and operating instructions as well as the details in the datasheet.

  • Page 7: Commissioning, Inspection, Maintenance

    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..... • 2. Filling the heating system with water and venting..•...
  • Page 8 Commissioning, inspection, maintenance Steps - commissioning, inspection and… (cont.) Commissioning steps Inspection steps Maintenance steps Page • • 22. Checking all connections on the heating water side for tightness..............36 • • 23. Cleaning and reconnecting the condensate drain system................36 •...

  • Page 9: Further Details Regarding The Individual Steps

    Commissioning, inspection, maintenance Further details regarding the individual steps Checking the high limit safety cut-out setting The high limit safety cut-out is preset to 110 °C and, if required, can only be adjusted by changing the coding card. Filling the heating system with water and venting Record the charge volume, water hard- Note ness and pH value on page 44.

  • Page 10: Checking The Gas Type

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the gas type 1. Check the gas type and Wobbe index 2. In the delivered condition, the burner (Wo) with your gas supply utility. is set up for natural gas E. If required, ■...

  • Page 11: Conversion To Natural Gas E

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Conversion to natural gas E Restrictor installation 06. Release the gas train from flange B C D 07. In the case of a 500 kW burner: Insert O-ring B, natural gas restric- tor C and rubber cork gasket D.
  • Page 12 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 12. Check all fittings for tightness. 13. Start the burner (see page 18). Danger Escaping gas leads to a risk of explosion. Check all fittings for gas tightness. Please note The use of leak detection spray can result in incorrect functions.
  • Page 13 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 6. Press button S E to confirm. If Status Service applied successfully, "1" will be shown briefly in display C under Service, or "0" will appear if it failed. 7. Press button S E to switch to the operating display.

  • Page 14: Conversion To Lpg P

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Conversion to LPG P Restrictor installation 06. Release the gas train from flange B C D 07. Insert O-ring B, LPG restrictor C and rubber cork gasket D. Note The bevel on the LPG restrictor must point towards the gas train.
  • Page 15 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Rated heating output Restrictor for LPG P 7 mm 14.0 14.8 17.2 LPG settings on the burner control unit 1. Press button S E for longer than 2 s. " " flashes. 2.

  • Page 16: Height Adjustment

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 8. Press button R G. The system will be restarted. Note The setting parameters are displayed each time the system is restarted. 1 Max. output (70-100 %) The output setting is not limited. The base load can also be set (CS configuration).
  • Page 17 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 01. Press button S E for longer than 2 s. " " flashes. F until display C 02. Press button shows "6" under Service. 03. Press button S E until display C shows "6"...

  • Page 18: Configuring The Motorised Flue Gas Damper (Flue Gas Cascade)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note 2; LPG = liquid gas Each time the burner is restarted the set- Height 3; LA = low height ting parameters (max. output, gas type (0 to 1500 m) and height) are displayed as in the fol- 3;...
  • Page 19 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 6. Turn on the ON/OFF switch B at the control unit. Note The burner will start with a delay of approx. 3 min. If fault indicator A on the control unit illuminates and display C on the burner control unit flashes, initially reset the system.

  • Page 20: Reducing Operational Output (If Necessary)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 8. Check the function of the neutralising 9. Check all gaskets and plugs, and system (if installed), including the retighten if necessary. hydraulic seal in the siphon. Note Neutralising system operating We recommend you check all con- instructions nections on the heating water side for...

  • Page 21: Checking Static Pressure And Supply Pressure

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 8. Press button R G. The system will be restarted. Checking static pressure and supply pressure Supply pressure 1. Start the burner. Note For commissioning, see page 18. Switch the burner to maximum heat- ing output.
  • Page 22 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Supply pressure (flow pressure) Action Natural gas Below 10 mbar Below 15 mbar Make no adjustments and notify your local (1.0 kPa) (1.5 kPa) gas supply utility. 10 to 15 mbar 15 to 20 mbar (1.5 to Temporary mode in order to maintain heating (1.0 to...

  • Page 23: Checking The Rotary Damper Setting (For 400 And 620 Kw)

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the rotary damper setting (for 400 and 620 kW) 1. Open the gas shut-off valve. 3. Check whether compensation hose A has been connected between the 2. Check the position of the rotary gas train and distributor pipe.

  • Page 24: Overview Of Differences Between The Three Burner Sizes

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 5. Check the position of the rotary Rated Rated Rotary damper during the start-up phase. heating heat input damper Rotary damper windows B must be output setting almost closed for approx. 5 s. During this time, scale ring D must be at the (50/30 °C) [net cv]...
  • Page 25 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 500 kW A Compensation hose...
  • Page 26 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 620 kW A Compensation hose Rated heating output (at 50/30 °C) Rotary damper position ° − Compensation hose connection Venturi Adaptor Adaptor mixing panel panel pipe Restrictor for natural gas E 7 mm −...

  • Page 27: Checking The Co 2 Content

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the CO content Preparing the test 1. Open the gas shut-off valve. 2. Start the burner with the emissions test switch enabled at the control unit. 3. Simultaneously hold down S E and D for longer than 2 s.
  • Page 28 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Rated heating Rated heat input Permissible CO content output (50/30 °C) ) [net cv] Natural gas E LPG P in kW in kW in % in % 8.9 ±0.2 10.6 ±0.2 3.

  • Page 29: Checking The Flue Gas Temperature 17. Displaying The Ionisation Current

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 2. Check the CO content at the flue pipe. Rated heating Rated heat input Permissible CO content output (50/30 °C) ) [net Natural gas E LPG P [net cv] in kW in kW in kW in %...

  • Page 30: Shutting Down The System

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 05. Press S. "3" is shown under Status, 09. Press S approx. 2 s , " " flashes. and during operation the ionisation current is shown under Service (e.g. 10. Press until "5"...
  • Page 31 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 2. Remove front panels and side panel (on the side where the boiler door is hinged). For this, undo the M 5 screw from the top section of the front panel.
  • Page 32 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Unhook the front panel with clips at the bottom from the side panels.
  • Page 33 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 4. To remove the side panel (on the side on which the burner opens), undo the M 6 screw on the top rail and on the lower support. 5. Undo power cable with plug fÖ. Then undo the burner cables with plugs 3A/3B §A/§B, aGA/aGB, fÖ/aBH, fA...

  • Page 34: Opening The Boiler Door

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Opening the boiler door 1. Remove the gas supply pipe. 3. Undo the six screws on the boiler door, undo the plug-in connections of 2. Remove shock-absorbing panel A, the connecting cables if necessary and open the boiler door.

  • Page 35: Checking The Gaskets And Thermal Insulation Components

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Only use plastic brushes, not wire Cleaning agent manufacturer's brushes or sharp objects. details. For normal cleaning, flush the heating Note surfaces thoroughly with a water jet. You "Fauch 600" and "Antox 75 E" may use cleaning agents if you notice Manufacturer: stubborn residues, surface discoloura-...

  • Page 36: Checking All Connections On The Heating Water Side For Tightness

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking all connections on the heating water side for tightness Danger Note There is a risk of injury when Also check the connections to control working on pressurised compo- equipment and to the minimum pressure nents.
  • Page 37 If necessary, clean the condensate drain pipe again. 6. Clean the neutralising system (if installed) in accordance with the manufacturer's instructions. Neutralising system operating instructions Note The neutralising agent can be obtained from Viessmann by quoting part no. 9521 702.

  • Page 38: Checking For Tightness On The Flue Side

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking for tightness on the flue side 1. Check flue gas collector A and the boiler body for tightness. Danger Escaping flue gas can lead to a health hazard. Check gaskets on the flue gas collector and adjust, if required.

  • Page 39: Checking The Burner Gauze Assembly

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the burner gauze assembly Danger Please note Escaping gas leads to a risk of Scratches inside the combustion explosion. chamber can lead to corrosion. Close the gas shut-off valve. Never put tools or other objects into the combustion chamber.

  • Page 40: Checking The Ignition Electrodes And Ionisation Electrode

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the ignition electrodes and ionisation electrode Ignition electrodes Ionisation electrode Check ignition electrodes and ionisation electrode for correct gap to the burner ± gauze assembly and for possible dam- age (replace if required).

  • Page 41: Fitting The Fan

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Fitting the fan 3. Secure Venturi mixing pipe C with gas train A on fan D and plug in connecting cables/lines if neces- sary. 4. Close the boiler door and tighten the screws on the boiler door evenly and diagonally.

  • Page 42: Checking Both Gas Train Valves Automatically For Tightness

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Plug burner cable fA and KM BUS cable aVG into the burner control 3A/3B unit. 2. Plug control unit connecting cable fÖ/aBH, boiler sensor leads §A/ §B, flue gas sensor lead aGA/aGB and power cable fÖ...

  • Page 43: Implementing Final Checks

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Insert new gaskets in all gas fittings 4. Start the burner (see page 18). that have been opened and then tighten those fittings. 5. Check the outlet joints of the gas train and fittings between the fan and the 2.

  • Page 44: Checking The Water Quality

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the water quality Enter the amount of top-up water, the water hardness and the pH value in the tables. For water quality requirements, see page 87. Meter read- Fill and top- Total water Total hardness pH value Date...

  • Page 45: Checking The Mixer For Ease Of Operation And Leaks

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 2. If the pre-charge pressure of the 3. Top up with water until the charge expansion vessel is lower than the pressure of the cooled system is 0.1 static system pressure, top up with to 0.2 bar (10 to 20 kPa) higher than nitrogen until the pre-charge pres- the pre-charge pressure of the...

  • Page 46: Air Pressure Switch

    Air pressure switch Air pressure switch Fan pressure monitoring function (LDW1) The fault shutdown is shown with fault indicators "F F5" and "F F7" on the burner control unit display (see page 48) and can be reset by pressing reset button B. Rated Rated LDW1 set val-...
  • Page 47 Air pressure switch Air pressure switch (cont.) Combustion chamber pressure monitoring function (LDW2) Rated Rated LDW2 set val- heating heat in- output (50/30 °C) [net cv] in kW in kW in mbar (kPa) 5 (0.5)↑ To monitor the combustion chamber pressure, the switching threshold of air pressure switch 2 (LDW2) is monitored in all operating phases (except during...

  • Page 48: Burner Control Unit

    Burner control unit Burner control unit Display and programming unit A display and programming unit is inte- grated into the burner control unit. The display indicates the relevant operating conditions, the service and parameter conditions as well as all fault and error messages.
  • Page 49 Burner control unit Burner control unit (cont.) Status Service Standby Status Service Idle state check System tests Status Service Fan ramp-up Status Service Valve and/or relay test Status Service Pre-purge Status Service Pre-ignition Status Service Ignition Safety time Flame established...
  • Page 50 Burner control unit Burner control unit (cont.) Status Service Flame stabilisation Status Service Operation with flame Status Service Reheat Post-purge Status Service Maintenance program No air pressure Status Service Maintenance program No gas pressure or mains undervoltage Status Service Forced ventilation when no flame was recognised Status Service Safety shutdown...
  • Page 51 Burner control unit Burner control unit (cont.) Status Service Safety shutdown due to reaching maximum boiler water temperature Information display/configuration display The information display and the configu- 3. S "1" will be displayed under Sta- ration display are activated from the tus.
  • Page 52 Burner control unit Burner control unit (cont.) Menu points "5" and "6" are used to Configurations: adjust configuration settings of the Menu Description burner control unit. point Changeover from the operat- Note ing display of the burner con- Only make adjustments when the burner trol unit phase to other process control unit is on standby.
  • Page 53 Burner control unit Burner control unit (cont.) Menu point "6" is used to change the following operating parameters: Sub- Parameter Units/scale Delivered condi- menu tion point Maximum operational out- % of rated output 100 % Gas type 0 = NG (natural gas) 1 = LPG (liquid gas) —...
  • Page 54 Burner control unit Burner control unit (cont.) Example: to configure the motorised flue 5. S "7" will be displayed under Sta- gas damper (flue gas cascade), press tus. the following keys: 6. / until "1" appears under Service 1. S to link the motorised flue gas longer than 2 s, "...
  • Page 55 Burner control unit Burner control unit (cont.) for lower heating output, until "0" is shown under Serv- ice. for upper heating output, until "100" is shown under Serv- ice. /S simultaneously for longer than 2 s. The burner returns to modulat- ing mode.

  • Page 56: Troubleshooting

    Troubleshooting Fault display Fault display The fault display is activated automati- cally if the burner control unit switches to a fault state. The most recent fault will then be displayed. The fault LED is also illuminated in the case of a non-lockout fault or flashes together with the fault code in the case of a lockout fault.

  • Page 57: Fault Codes

    Troubleshooting Fault display (cont.) 4. / to scroll through the fault mem- until "4" is shown under Service. ory display. 3. S "4" will be displayed under Sta- Serv Description tus. until "3" is shown under Service. Display fault codes Detail fault codes 5.
  • Page 58 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics F 80 Burner control unit in Short circuit, boiler Check lead and dual sen- a fault state; system water temperature sor; replace sensor if re- cools down; burner sensor, burner quired control unit locked...
  • Page 59 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics F b7 Type of coding card Coding card does Replace coding card or not match burner burner control unit I Danger control unit Plug-in terminals on the burner control unit are 'live'.
  • Page 60 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics F EF Burner control unit in Internal error in Reset burner control unit; a fault state feedback from gas replace burner control safety valves; out- unit put relay does not respond Emergency operation Communication er-...
  • Page 61 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics F F4 No flame formation Ignition electrodes Adjust ignition electrodes during safety time; incorrectly adjus- (see page 40); replace ig- ionisation flame mon- ted, electrodes nition unit; replace burner itor reports no flame earthed, faulty igni- control unit...
  • Page 62 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics F F5 Air pressure switch Flue gas back Remove flue gas back switches off during pressure; conden- pressure; check if con- operation sate banked up; air densate banked up; reset pressure switch burner control unit;...
  • Page 63 Troubleshooting Fault codes (cont.) Displayed System characteris- Cause Measures fault code tics F F9 Varying fan speed Fan faulty, ca- Check cable, possibly re- ble"a-ÖA" faulty or place cable "a-ÖA" or broken. Check ca- ble "a-ÖA"; check external power supply; replace the cable or fan;...

  • Page 64: Faults Without Fault Display

    Troubleshooting Fault codes (cont.) Internal system fault Internal system faults are created if a perfect program sequence can no longer be guaranteed. Display System characteris- Cause Measures tics F E5, F EC, Fault around burner Internal system Reset burner control unit. F Ed, F EE, control unit fault and EMC...

  • Page 65: Burner Control Unit Flow Chart

    Burner control unit flow chart Burner control unit flow chart...
  • Page 66 Burner control unit flow chart Burner control unit flow chart (cont.) Description of state: Phase Display Description Duration System "A" System start 10 s start Fan ramp-up, system start max. 20 s Forced ventilation, system start 20 s Valve test "P"...

  • Page 67: Connection Diagrams

    Connection diagrams Burner control unit connection diagram A Burner control unit VUC 310 K Gas pressure switch 2 H Fan motor with PWM control and L Air pressure switch 1 feedback M Gas pressure switch 1...
  • Page 68 Connection diagrams Burner control unit connection diagram (cont.) N Air pressure switch 2 R Boiler water temperature sensor 2 P Flue gas temperature sensor 2 S Boiler water temperature sensor 1 Q Flue gas temperature sensor 1 T Display and programming unit...
  • Page 69 Connection diagrams Burner control unit connection diagram (cont.) A Burner control unit VUC 310 D Servomotor for rotary damper B Flame monitoring via an ionisation E Ignition unit current F Fuel valve BV1 C Vitotronic control unit G Fuel valve BV2...
  • Page 70 Connection diagrams Burner control unit connection diagram (cont.) X Plug 150, HLSC-HLSC H1 Hours run meter, modulation H2 Fault message F1 Backup fuse F2 Backup fuse S1 ON/OFF switch...

  • Page 71: Mains Filter Unit Connection Diagram

    Connection diagrams Mains filter unit connection diagram Mains filter a-Ö To the fan Contactor fÖ Power supply 120 V~/60 Hz Flue gas temperature sensor fÖ/aBH Control unit Boiler water temperature sen- Flue gas damper to a-Ö burner control unit Air pressure switch 2...
  • Page 72 Connection diagrams Mains filter unit connection diagram (cont.) Note The power cable must be protected. The maximum fuse rating is 20 A. Make the power supply (120 V~/60 Hz) via a permanent connection.

  • Page 73: Component Overview

    Component overview Component overview A Burner frame G Gas pressure switch B Air pressure switch 1 H Rotary damper with servomotor C Air pressure switch 2 K Venturi mixing pipe D Display and programming unit L Gas fan E Gas train M Burner gauze assembly F Gas supply pipe N Ignition electrodes...
  • Page 74 Component overview Component overview (cont.) O Ionisation electrode R Burner control unit P Ignition unit S Mains filter unit with contactor...

  • Page 75: Control Unit

    Control unit Adjusting codes at the control unit Service instructions Vitotronic 300, type GW5B...

  • Page 76: Parts Lists

    Parts lists Ordering parts The following information is required: Standard parts are available from your ■ Serial no. (see type plate A) local supplier. ■ Assembly (from this parts list) ■ Position number of the individual part within the assembly (from this parts list) Overview of the assemblies Type plate...

  • Page 77: Boiler Assembly

    Parts lists Boiler assembly 0001 Flue gas collector 0006 Boiler door 0002 Stench trap 0007 Stud bolt B 12h11 x 85 0003 Sensor well G ½, L = 150 mm, 0008 Foot bolts with clip 0009 Mounting bracket 0004 Flue gas temperature sensor 0010 Gasket, flue gas cover D = 3 x 37 mm 0011 Thermal insulation block...
  • Page 78 0017 Control unit fascia 0023 Thermal insulation jacket 0018 Top panel, centre, with cover 0024 Edge protector panel 0025 Vitocrossal 200 logo 0019 Top panel, front, complete 0026 Viessmann logo 0020 Top panel, left back 0027 Shock-absorbing panel 0021 Top panel, right back...
  • Page 79 Parts lists Thermal insulation assembly (cont.) 0018 0017 0020 0021 0019 0016 0027 0006 0003 0010 0009 0024 0013 0024 0023 0012 0011 0001 0005 0022 0007 0003 0026 0025 0008 0015 0025 0026 0002 0014 0008 0005 0028 0004...

  • Page 80: Burner Assembly, 400 Kw

    Parts lists Burner assembly, 400 kW 0001 Cylinder burner 0018 Venturi mixing pipe 0001 Burner frame 0020 LPG restrictor with gasket 0002 Small and fixing parts 0021 Gas train 0003 Burner gauze assembly with gas- 0022 Gas pressure switch cable 0023 Mains filter unit 0004 Gasket, burner gauze assembly 0024 Power contactor...

  • Page 81: Burner Assembly, 500 Kw

    Parts lists Burner assembly, 400 kW (cont.) 0033 0032 0039 0023 0024 0032 0033 0024 0007 0010 0003 0004 0011 0004 0012 0001 0035 0025 0005 0006 0008 0015 0014 0038 0009 0021 0022 0037 0026 0036 0027 0028 0018 0020 0029 0039...
  • Page 82 Parts lists Burner assembly, 500 kW (cont.) 0003 Burner gauze assembly with gas- 0021 Gas train 0022 Gas pressure switch cable 0004 Gasket, burner gauze assembly 0023 Mains filter unit (wearing part) 0024 Power contactor 0005 Ignition electrode 1+2 with O-ring 0025 Flange gasket (wearing part) (wearing part) 0026 Ignition transformer connecting...
  • Page 83 Parts lists Burner assembly, 500 kW (cont.) 0033 0032 0023 0039 0024 0032 0033 0024 0007 0010 0011 0003 0004 0012 0035 0001 0004 0025 0005 0006 0008 0015 0009 0022 0026 0028 0029 0038 0021 0014 0030 0031 0037 0019 0034 0020...

  • Page 84: Burner Assembly, 620 Kw

    Parts lists Burner assembly, 620 kW 0001 Cylinder burner 0018 Venturi mixing pipe 0001 Burner frame 0020 LPG restrictor with gasket 0002 Small and fixing parts 0021 Gas train 0003 Burner gauze assembly with gas- 0022 Gas pressure switch cable 0023 Mains filter unit 0004 Gasket, burner gauze assembly 0024 Power contactor...
  • Page 85 Parts lists Burner assembly, 620 kW (cont.) 0033 0032 0023 0024 0039 0032 0033 0024 0007 0010 0003 0011 0004 0012 0004 0035 0001 0005 0006 0008 0015 0014 0009 0022 0038 0026 0021 0027 0028 0037 0020 0029 0036 0030 0039 0018...

  • Page 86: Report

    Report Report Setting and test values Commission- Maintenance/ Service Static pressure mbar Supply pressure (flow pressure) = for natural gas E mbar = for LPG P mbar Tick gas type Carbon dioxide content CO ■ At the upper rated actual % by heating output vol.
  • Page 87 Water quality requirements Note The warranty excludes damage due to Observing the following requirements is corrosion and scaling. necessary to safeguard your warranty rights. Prevention of damage due to scaling Prevent excessive scale build-up (cal- cium carbonate) on the heating surfaces. For heating systems with operating tem- peratures up to 100 °C, guideline VDI 2035-1 "Prevention of damage in...
  • Page 88 Water quality requirements (cont.) ■ In systems > 50 kW, install a water ■ In multi boiler systems, start all boilers meter to record the volume of the fill simultaneously to prevent the entire and top-up water. Enter the volume of limescale deposit settling in the heat fill water and the water hardness into transfer area of just one boiler.
  • Page 89 Water quality requirements (cont.) Prevention of damage due to corrosion on the water side The corrosion resistance of ferrous Sealed unvented systems – e.g. those materials on the heating water side of equipped with an expansion vessel – heating systems and heat generators offer good protection against the ingress depends on the absence of oxygen in the of airborne oxygen into the system, if...
  • Page 90 Water quality requirements (cont.) Where chemicals are used as part of the corrosion protection, we recommend that the manufacturer of the chemicals issues a certificate of suitability of the additives with regard to the boiler mate- rials and the materials of the other heat- ing system components.

  • Page 91: Specification

    Specification Specification Gas boiler, category II 2ELL3P Rated boiler heating output = 50/30 °C 80(100 )-400 100(125 )-500 124(155 )-620 = 80/60 °C 74(93 )-370 92(115 )-460 115(144 )-575 Rated heat input [net cv] [net cv] [net cv] 76(95 )-381 95(119 )-474 119(148 )-593...
  • Page 92 Specification Specification (cont.) Gas restrictor dimensions (natural gas E and LPG P) Rated heating Rated heat input Dim. a output (50/30 °C) ) [net cv] Natural gas E LPG P (G31) (G20) in kW in kW in mm in mm —...

  • Page 93: Keyword Index

    Keyword index Keyword index Air pressure switch ■ Combustion chamber pressure moni- ■ Fitting..........41 toring (LDW2).........47 Fault code..........57 ■ Fan pressure monitoring (LDW1)...46 Fault memory........56 Faults without fault display....64 Final checks, implementing....43 Boiler door Flow pressure check......21 ■ Opening..........34 Burner ■...
  • Page 94 Keyword index Keyword index (cont.) Siphon, filling with water......9 Operating parameters, changing ..53 Specification........91 ■ Maximum boiler water temperature 53 Static pressure check......21 ■ Maximum operational output..53 Supply pressure check.......21 Operating parameters, resetting..54 System Operational output reduction..20, 53, 54 ■ Commissioning.......18 ■...
  • Page 96 Applicability Serial No.: 7513666 7513667 7513668 7502860 7502861 7502862 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...

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