Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Viessmann Vitodens 025-W
Summary of Contents for Viessmann Vitodens 025-W
- Page 1 VIESMANN Installation and service instructions for contractors Vitodens 025-W Type BPKB-24, BPKB-28, 5.0 to 25 kW Wall mounted gas condensing boiler Natural gas version Gas Council No. BPKB-24: ■ 47-819-64 ■ BPKB-28 47-819-65 VITODENS 025-W Please keep safe. 6227767 GB...
-
Page 2: Target Group
Safety instructions Safety instructions 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- tal pollution. -
Page 3: Safety Instructions
Prior to commencing work, touch For installation and replacements, earthed objects such as heating or use only Viessmann original parts water pipes to discharge static or parts approved by Viessmann. loads. Repair work... -
Page 4: If You Smell Flue Gas
Safety instructions Safety instructions (cont.) Safety instructions for operating the system If you smell gas Condensate Danger Danger Escaping gas can lead to explo- Contact with condensate can be sions which may result in serious harmful to health. injury. Never let condensate touch your Do not smoke. - Page 5 Safety instructions Safety instructions (cont.) Danger The simultaneous operation of the boiler and appliances that exhausts air to the outside can result in life threatening poisoning due to a reverse flow of flue gas. Fit an interlock circuit or take suita- ble steps to ensure an adequate supply of combustion air.
-
Page 6: Table Of Contents
System examples .................. 10 Maintenance parts and spare parts ............10 Viessmann Partnershop ..............11 ■ Viessmann spare part app ..............11 ■ 2. Preparing for installation Fitting the pre-plumbing jig ..............13 Connection on the DHW side for gas condensing combi boiler .... 14 Cold water installation ................ - Page 7 Index Index (cont.) Overview of electronics modules ............52 Fault messages ..................53 F02 ..................... 53 ■ F03 ..................... 53 ■ F04 ..................... 53 ■ F05 ..................... 53 ■ F07 ..................... 54 ■ F08 ..................... 54 ■ F09 ..................... 54 ■...
-
Page 8: Information Disposal Of Packaging
Information Disposal of packaging Please dispose of packaging waste in line with statu- tory regulations. Gas Council No. Type Gas Council No.: Vitodens 025-W, BPKB-24 47-819-64 Vitodens 025-W, BPKB-28 47-819-65 Symbols The steps in connection with commissioning, inspec- Symbol Meaning tion and maintenance are found in the "Commission-... -
Page 9: Intended Use
Information Intended use The appliance is intended solely for installation and Any usage beyond this must be approved by the man- operation in sealed unvented heating systems that ufacturer in each individual case. comply with EN 12828, with due attention paid to CECS215-2017 and the associated installation, serv- Incorrect usage or operation of the appliance (e.g. -
Page 10: Type Plate
System examples with hydraulic and electrical connec- Detailed information regarding system examples: tion diagrams and function descriptions are available www.viessmann-schemes.com to help setting up the heating system. Maintenance parts and spare parts You can identify and order maintenance parts and spare parts directly online. -
Page 11: Viessmann Partnershop
Information Maintenance parts and spare parts (cont.) Viessmann Partnershop Login: https://shop.viessmann.com/ Viessmann spare part app Web application ViParts app www.viessmann.com/etapp... - Page 12 Preparing for installation (cont.) Ø 96 -0,5 Ø 60,5 +0,8 Fig. 2 Condensate drain Filling/draining Heating flow Installation height (recommended) Dimension: 161 mm – for external wall connection, Gas connection part no. 7441467, 7411961 Cold water Dimension: 131 mm – for external wall connection, Heating return part no.
-
Page 13: Preparing For Installation Fitting The Pre-Plumbing Jig
Preparing for installation (cont.) Note ■ This boiler (IP rating IP X4D) is approved for installa- tion in wet rooms inside safety zone 1, to DIN VDE 0100. Exposure to jets of water must be prevented. For open flue operation, the boiler may only be oper- ■... -
Page 14: Connection On The Dhw Side For Gas Condensing Combi Boiler
Preparing for installation Connection on the DHW side for gas condensing combi boiler Cold water installation Visible discharge pipe outlet point Safety valve Non-return valve Shut-off valve Cold water Safety assembly Safety assembly is included in the standard delivery and requires installing. Only use a non-return valve or a combined shut-off and non-return valve in conjunction with a safety valve. -
Page 15: Installation Sequence Removing The Boiler From The Packaging
Installation sequence Removing the boiler from the packaging Fig. 4... -
Page 16: Mounting The Boiler And Making Connections
Installation sequence Mounting the boiler and making connections Removing the front panel Fig. 5 Mounting the boiler on the pre-plumbing jig or mounting frame Note Various installation components can be found in a sep- arate pack. Keep the installation components safe, as they will be required for installation later on. -
Page 17: Installation Sequence
Installation sequence Mounting the boiler and making connections (cont.) Fig. 6 Note 1. Replace gaskets. The diagram shows installation on a pre-plumbing jig for a gas condensing combi boiler. Internal gasket diameter: ■ Gas connection Ø 18.5 mm The boiler can be installed on the following accesso- ■... -
Page 18: Fitting The Boiler To The Wall Mounting Bracket
Installation sequence Mounting the boiler and making connections (cont.) 2. Suspend the Vitodens from the wall mounting 5. Tighten locking ring fittings so that they form a tight bracket. seal: After mounting, ensure correct seating. 1 turn beyond finger-tight 3. Only remove the locking clip under the gas pipe union nut once the appliance has been installed. - Page 19 Installation sequence Mounting the boiler and making connections (cont.) Fig. 7 1. Replace gaskets. Fit valves and gas shut-off valve. 3. Note Only remove the locking clip under the gas pipe Internal gasket diameter: union nut once the appliance has been installed. Gas connection Ø...
-
Page 20: Heating Water And Dhw Connections
Installation sequence Mounting the boiler and making connections (cont.) 4. Tighten union nuts so that they form a tight seal. Tighten union nuts as much as necessary and ensure that the components are undamaged and are functioning correctly throughout their service life. -
Page 21: Condensate Connection, Topping Up Heating Water
Installation sequence Condensate connection, topping up heating water 1. Note If a disconnector is used, set the top-up facility to the "ON" position. Remove blue cover 2. Push the supplied condensate drain hose on to the drain connector. Connect the drain hose with a constant fall and a pipe vent to the drain network or a neutralising sys- tem. -
Page 22: Flue Gas Connection
Installation instructions for the flue system or Groppalli flue system" enclosed with the technical documentation may only be used in conjunction with the Viessmann flue system made by Skoberne or Groppalli. Connecting several Vitodens to a shared flue system If several Vitodens boilers are being connected to a... -
Page 23: Gas Connection
Installation sequence Gas connection 2. Check for leaks. Danger Escaping gas leads to a risk of explosion. Check all connections on the gas side (also inside the appliance) for leaks. Note Only use suitable and approved leak detection agents (EN 14291) and devices for the leak test. Leak detection agents with unsuitable constituents (e.g. -
Page 24: Electrical Connections
Installation sequence Electrical connections Opening the wiring chamber Please note Electronic assemblies can be damaged by elec- trostatic discharge. Prior to commencing any work, touch earthed objects such as heating or water pipes to dis- charge static loads. Fig. 12... -
Page 25: Overview Of Electrical Connections
Installation sequence Electrical connections (cont.) Overview of electrical connections Note For further information on the connections, see the fol- lowing chapters. J7_1 J1_3 J7_2 J7_3 J1_2 J11_1 J1_1 J11_2 J11_3 J11_4 Fig. 13 Power supply Outside temperature sensor Remote control (OpenTherm controller) 24 V DC room thermostat Power supply unit J1_1 Heating circuit pump... -
Page 26: On-Site Connections On The Icb Heat Management Unit
Installation sequence Electrical connections (cont.) Note on connecting accessories When connecting accessories, observe the sep- arate installation instructions provided with them. All accessories have a low voltage connection. Pin 1 and pin 2 in block J6 contain a jumper. The jumper must be removed before an OT or room TH connection is established. -
Page 27: Power Supply
Installation sequence Electrical connections (cont.) Power supply Power supply If the power supply to the appliance is connected fÖ ■ with a flexible power cable, ensure that the live con- Danger ductors are pulled taut before the earth conductor in Incorrectly executed electrical installations can the event of strain relief failure. -
Page 28: Closing The Wiring Chamber
Installation sequence Closing the wiring chamber Fig. 16 Mounting the front panel Fig. 17... -
Page 29: Commissioning, Inspec-Steps - Commissioning, Inspection And Maintenance
Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance Commissioning steps Inspection steps Maintenance steps Page • 1. Commissioning the system....................30 • • 2. Filling the heating system....................31 • • • 3. Checking all connections on the heating water and DHW sides for leaks....32 •... -
Page 30: Commissioning The System
Commissioning, inspection, maintenance Commissioning the system Please note 2. If the appliance has not been switched on yet: Turn Only commission the appliance with a fully filled on the ON/OFF switch. trap. Call up the commissioning assistant: Check that the trap has been filled with water. and OK simultaneously for approx. -
Page 31: Commissioning, Inspection, Maintenance
Commissioning, inspection, maintenance Filling the heating system Fill water As a heat transfer medium for DHW heating, the heat- ing water must meet fluid category 3. This require- ≤ ment is met if water of potable quality is used as heat- ing water. -
Page 32: Checking All Connections On The Heating Water And Dhw Sides For Leaks
Commissioning, inspection, maintenance Filling the heating system (cont.) 7. OK Checking all connections on the heating water and DHW sides for leaks Danger Please note There is a risk of electric shock from escaping Leaking hydraulic connections lead to appliance heating water or DHW. -
Page 33: Checking The Gas Type
Commissioning, inspection, maintenance Checking the gas type The boiler is equipped with a pneumatic combustion Operation with natural gas therefore requires no ■ controller that adjusts the burner for optimum combus- adjustment across the entire Wobbe index range. tion in accordance with the prevailing gas quality: ■... -
Page 34: Checking The Static Pressure And Supply Pressure
Commissioning, inspection, maintenance Removing the front panel (cont.) Fig. 20 Checking the static pressure and supply pressure Danger CO formation as a result of incorrect burner adjustment can have serious health implications. Always carry out a CO test before and after work on gas appliances. - Page 35 Commissioning, inspection, maintenance Checking the static pressure and supply pressure (cont.) 01. Turn off the ON/OFF switch. 02. Close the gas shut-off valve. 03. Undo screw in the test connector on the gas solenoid valve. Do not remove. Connect the pres- sure gauge.
-
Page 36: Function Sequence And Possible Faults
Commissioning, inspection, maintenance Function sequence and possible faults Display Measure Control unit issues a heat Increase set value. Ensure demand heat transfer. Fan starts Fault 05 Check the fan connecting ca- bles. Check the fan power supply. Ignition Fault 03, 04 Test the ignition cable. -
Page 37: Adjusting The Integral Circulation Pump Rate
Commissioning, inspection, maintenance Setting the maximum heating output (cont.) 7. OK Adjusting the integral circulation pump rate Operation of the integral circulation pump The pump speed and consequently the pump rate are Setting (%) in system configuration: See page 50. controlled subject to the outside temperature and the ■... -
Page 38: Checking The Balanced Flue System For Leaks (Annular Gap Test)
Commissioning, inspection, maintenance Adjusting the integral circulation pump rate (cont.) Curve Pump rate of circulation pump 10 % 20 % 30 % 40 % 50 % 60 % 70 % 80 % 90 % Checking the balanced flue system for leaks (annular gap test) Fig. -
Page 39: Removing The Burner
Commissioning, inspection, maintenance Burner adjustment when connecting multiple… (cont.) For multiple connection, in the configuration menu Minimum shaft cross-section ■ use "C.1 to C.6" to match the burner setting to the flue – Square 175 x 175 mm system. – Round 195 mm ■... -
Page 40: Checking The Burner Gasket And Burner Gauze Assembly
Commissioning, inspection, maintenance Removing the burner (cont.) 5. Undo 4 screws and remove the burner. Note Cover gas connection so that no small parts can fall into it. Checking the burner gasket and burner gauze assembly Fig. 26 Check electrodes , burner gauze assembly , ther- 5. - Page 41 Commissioning, inspection, maintenance Checking the burner gasket and burner gauze… (cont.) 7. Align the hole in burner gauze assembly 8. Check thermal insulation ring with for firm seating. the burner door pin. Secure burner gauze assembly and gasket 9. Fit electrodes .
-
Page 42: Checking And Adjusting The Ignition And Ionisation Electrodes
Commissioning, inspection, maintenance Checking and adjusting the ignition and ionisation electrodes ±0,6 ±0,5 Fig. 28 Ignition electrodes Ionisation electrode 1. Check the electrodes for wear and contamination. 3. Check the electrode gaps. If the gaps are not as specified or the electrodes are damaged, replace 2. -
Page 43: Cleaning The Heating Surfaces
Commissioning, inspection, maintenance Checking the back draught safety devices (cont.) Back draught safety device in the flue gas connec- 1. Remove the balanced flue system. tion Note If the balanced flue system cannot be removed, clean and check the back draught safety device via the inspection cover. - Page 44 Commissioning, inspection, maintenance Checking the condensate drain and cleaning the… (cont.) 3. Remove the black supply hose. 4. Pull trap upwards out of the drain hose. 5. Hold trap as straight as possible and remove. Ensure that no condensate runs out. 6.
-
Page 45: Installing The Burner
Commissioning, inspection, maintenance Checking the condensate drain and cleaning the… (cont.) Danger Leaking condensate can lead to an electric shock. Check the connections for leaks and check that the trap is seated correctly. Note Route the drain hose without any bends and with a constant fall. -
Page 46: Checking The Neutralising System (If Installed)
Commissioning, inspection, maintenance Installing the burner (cont.) 3. Check the gas connections for leaks. 4. Connect the cables/leads: ■ Fan motor (2 plugs) Danger ■ Ionisation electrode Escaping gas leads to a risk of explosion. Ignition unit ■ Check all fittings for gas tightness. In the ■... -
Page 47: Checking The Safety Valve Function
Commissioning, inspection, maintenance Checking the expansion vessel and system… (cont.) 2. If the pre-charge pressure of the expansion vessel 3. Top up with water until the charge pressure of the is lower than the static system pressure: Top up cooled system is at least 1.0 bar (0.1 MPa), and is with nitrogen at the valve of the diaphragm expan- 0.1 to 0.2 bar (10 to 20 kPa) higher than the pre- sion vessel until the pre-charge pressure is 0.1 to... - Page 48 Commissioning, inspection, maintenance Checking the combustion quality Note To prevent operating faults and damage, operate the appliance with uncontaminated combustion air. Permissible CO content The CO content must be < 1000 ppm for all gas types. Permissible CO or O content Operation with natural gas Rated heating out-...
-
Page 49: Checking The Combustion Quality
Commissioning, inspection, maintenance Checking the combustion quality (cont.) 3. Adjust the lower heating output. See the following 7. Check the CO content. If the actual value deviates chapter. from the permissible ranges by more than 1 %, implement steps listed above. 4. -
Page 50: System Configuration Calling Up Parameters
System configuration (parameters) Calling up parameters Note 2. Use to select "C" for system configuration. The display and setting of some parameters is dependent on: 3. OK ■ Heat generator ■ Connected accessories and the functions associated with them Tap the following buttons: simultaneously for approx. -
Page 51: Diagnostics And Service Service Menu
Diagnostics and service checks Service menu Calling up the service menu Press the following buttons: Service menu overview simultaneously for approx. 5 s. Service Diagnostics should then be pressed. System configuration Select the required menu section (for example "S", "C" or "d"). Special menu 3. -
Page 52: Troubleshooting Fault Display On The Programming Unit
Troubleshooting Fault display on the programming unit If there is a fault in the heating system, the "hazard symbol" flashes and the fault code appears on the screen. The fault is still present. The fault is not cleared. Resetting the burner The display shows "F02"... -
Page 53: Fault Messages
Troubleshooting Fault messages Note For diagnostics and troubleshooting, see chapter "Repairs". Fault messages dependent on appliance equipment level System characteristics Check the flow rate; check that the circulation pump ■ is working. Burner in a fault state ■ Check sensor cable. Replace faulty component if necessary. -
Page 54: F07
Troubleshooting Fault messages (cont.) System characteristics Measures Burner in a fault state ■ Check thermostatic radiator valves. ■ Check water pressure. Cause ■ Clean the water circuit. ■ Replace the boiler temperature sensor. Feedback, boiler temperature sensor too hot (> 86 °C). Burner shuts down. -
Page 55: Ff1
Troubleshooting Fault messages (cont.) System characteristics Check whether flow rate is sufficient (circulation ■ pump). Burner in a fault state ■ Check function of 3-way diverter valve. Vent the system. Cause Reset the appliance once the flue system has cooled down. -
Page 56: F51
Troubleshooting Fault messages (cont.) System characteristics Measures No DHW heating Check DHW temperature sensor (plug J11, cores 4 and 5). Measure sensor input on ICB heat manage- Cause ment unit. Set value: 3.3 V with sensor disconnected – Short circuit, DHW temperature sensor System characteristics Measures No DHW heating... -
Page 57: F0C
Troubleshooting Fault messages (cont.) Measures Check the dual sensor and replace it if necessary. System characteristics Measures Burner locked out, boiler circuit pump off. No room Check mains voltage. heating, no DHW heating If voltage is correct and the fault occurs repeatedly, replace the fan unit. -
Page 58: Removing The Boiler From The Pre-Plumbing Jig Or Mounting Frame
Troubleshooting Repairs (cont.) Removing the boiler from the pre-plumbing jig or mounting frame Fig. 38 Note Note When assembling, use new gaskets and, if required, When carrying out any work on gas connection fittings, new locking ring fittings. hold with a suitable tool. Never transfer any forces to the internal components. -
Page 59: Checking The Temperature Sensors
Troubleshooting Repairs (cont.) Checking the temperature sensors Fig. 39 Heat generator circuit flow temperature sensor 3. Check the sensor resistance. Note position of (dual sensor) guide lug ■ Sensor 1: Connections 1 and 3 1. Check the leads and plugs of flow temperature Sensor 2: Connections 2 and 4 ■... -
Page 60: Replacing The Power Cable
■ Temperature in °C Temperature in °C Sensor type: NTC 10 k Ω Sensor type: NTC 10 k Ω Replacing the power cable When replacing the power cable, only use the power cable available as an individual part from Viessmann. -
Page 61: Checking The Plate Heat Exchanger
Troubleshooting Repairs (cont.) Checking the plate heat exchanger Fig. 40 Heating water flow Cold water Heating water return 1. Shut off and drain the boiler on the heating water 7. Install plate heat exchanger in reverse order using and DHW sides. new gaskets. -
Page 62: Removing The Hydraulic Unit
Troubleshooting Repairs (cont.) Removing the hydraulic unit If components of the hydraulic unit have to be replaced. Danger Risk of electric shock from escaping heating water or DHW After installation, check all connections on the water side for leaks. Fig. 41... -
Page 63: Checking The Fuse
Troubleshooting Repairs (cont.) Checking the fuse Fig. 42 1. Turn off ON/OFF switch 4. Check fuse F1 (see connection and wiring dia- gram). 2. Pivot the ICB heat management unit down. Danger 3. Remove the cover. Incorrect or improperly fitted fuses can lead to an increased risk of fire. -
Page 64: Function Description Appliance Functions
Function description Appliance functions Heating mode Weather-compensated mode: Constant mode without room thermostat: ■ ■ The rooms are heated in accordance with the room The rooms are heated according to the set flow tem- temperature settings. perature settings. The control unit determines a set flow temperature ■... - Page 65 Function description Appliance functions (cont.) Factory settings: ■ Heating curve = 5 -20 -25 Outside temperature in °C Fig. 43 5 (factory setting)
-
Page 66: Connection And Wiring Dia-Icb Heat Management Unit
Connection and wiring diagram ICB heat management unit 0VDC 230VDC Fig. 44 A1 ICB heat management unit Fan motor A2 Power supply unit 3-way valve J... Electrical interfaces Gas solenoid valve Power supply 230 V/50 Hz Earthing Heating circuit pump Ignition unit/ionisation... -
Page 67: Connection And Wiring Diagram
Connection and wiring diagram ICB heat management unit (cont.) +27V SIGNAL SIGNAL Fig. 45 A1 ICB heat management unit Flue gas temperature sensor J... Electrical interfaces Fan motor (PWM) Outside temperature sensor Heating circuit pump (PWM) Remote control (OpenTherm) or room temperature DHW temperature sensor sensor Flow sensor... -
Page 68: Commissioning/Service Report
Commissioning/service reports Report Settings and test values Set value Commission- Maintenance/ Maintenance/ service service Date Signature Static pressure mbar 57.5 ≤ 5.75 ≤ Supply pressure (flow pres- sure) With natural gas ..mbar See table "Supply pressure" (Commis- sioning ...) Enter gas type. -
Page 69: Specification Gas Condensing Combi Boiler
Specification Gas condensing combi boiler Gas boiler, type B and C, category I Type BPKB-24 BPKB-28 Rated heating output range (to EN 15502) = 50/30 °C Natural gas 5.0 to 20.0 5.0 to 25.0 = 80/60 °C Natural gas 4.5 to 19.2 4.5 to 22.7 Rated heating output for DHW heating Natural gas... - Page 70 Specification Gas condensing combi boiler (cont.) Gas boiler, type B and C, category I Type BPKB-24 BPKB-28 Rated heating output range (to EN 15502) = 50/30 °C Natural gas 5.0 to 20.0 5.0 to 25.0 = 80/60 °C Natural gas 4.5 to 19.2 4.5 to 22.7 Diaphragm expansion vessel...
- Page 71 Specification Gas condensing combi boiler (cont.) Gas boiler, type B and C, category I Type BPKB-24 BPKB-28 Rated heating output range (to EN 15502) = 50/30 °C Natural gas 5.0 to 20.0 5.0 to 25.0 = 80/60 °C Natural gas 4.5 to 19.2 4.5 to 22.7 Max.
-
Page 72: Disposal Final Decommissioning And Disposal
Disposal Final decommissioning and disposal Viessmann products can be recycled. Components For decommissioning, isolate the system from the and substances from the system are not part of ordi- power supply and allow components to cool down nary domestic waste. where appropriate. -
Page 73: Certificates Declaration Of Conformity
Certificates Declaration of conformity We, Viessmann Climate Solutions SE, D-35108 Allen- dorf, declare as sole responsible body that the named product complies with the European directives and supplementary national requirements in terms of its design and operational characteristics. Viessmann Cli-... -
Page 74: Keyword Index
Keyword index Keyword index Back draught safety device........42 Heating curve............. 64 Boiler, fitting............16, 18 Heating output setting..........36 Boiler, removing............58 Heating surface, cleaning...........43 Boiler temperature sensor..........59 Heating system, venting........31, 32 Burner gasket.............40 Hydraulic unit removal..........62 Burner gauze assembly..........40 Burner installation............ - Page 75 Keyword index Keyword index (cont.) System configuration..........30, 50 System filling.............. 31 Venting program............64 System pressure............31 System schemes............49 Wiring chamber, closing..........28 Wiring chamber, opening........... 24 Tightness test............. 32 Wiring diagram............66 Trap..............21, 43 Type plate..............10...
- Page 76 Viessmann Climate Solutions SE Viessmann Climate Solutions SE 35108 Allendorf / Germany A Carrier Company A Carrier Company 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...
Need help?
Do you have a question about the Vitodens 025-W and is the answer not in the manual?
Questions and answers