Viessmann KOB Pyromat ECO Service Instructions For Contractors
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Viessmann KOB Pyromat ECO Service Instructions For Contractors

Wood gasification boiler for 50 cm or 100 cm logs
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Service instructions
for contractors
Pyromat ECO
Wood gasification boiler
for 50 cm or 100 cm logs
PYROMAT ECO
Please keep safe.
5604 447 GB
10/2010

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  • Page 1 Service instructions for contractors Pyromat ECO Wood gasification boiler for 50 cm or 100 cm logs PYROMAT ECO Please keep safe. 5604 447 GB 10/2010...
  • Page 2 Safety instructions Safety instructions Please follow these safety instructions closely to prevent accidents and mate- rial losses. Safety instructions explained ■ all current safety regulations as defined by DIN, EN, DVGW, TRGI, Danger TRF, VDE and all locally applicable This symbol warns against the standards, risk of injury.
  • Page 3 ■ When using gas as fuel, also close the For replacements, use only orig- main gas shut-off valve and safeguard inal spare parts from Viessmann against unauthorised reopening. or those which are approved by ■ Isolate the system from the power sup- Viessmann.
  • Page 4 Index Index Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance.......... Further details regarding the individual steps............Codes Code 1........................14 Code 2........................18 Service scans Service functions....................21 Diagnosis......................21 Scanning operating conditions and sensors ............24 Troubleshooting Fault display......................25 Repair........................
  • Page 5 Index Index (cont.) Appendix Wiring of plug, Pyromat Eco................. 63 Installation schemes..................... 71 Keyword index....................74...

  • Page 6: Table Of Contents

    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. Filling the heating system..........• • • 2. Checking all connections on the heating water side for leaks •...

  • Page 7: Filling The Heating System

    Commissioning, inspection, maintenance Further details regarding the individual steps Filling the heating system 1. Check the pre-charge pressure of the 2. Top up your heating system with diaphragm expansion vessel. water and vent until the fill pressure If the pre-charge pressure of the dia- is 0.1 to 0.2 bar higher than the pre- phragm expansion vessel is lower charge pressure of the diaphragm...

  • Page 8: Checking Outputs And Actuators

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking outputs and actuators Carrying out an actuator test Note An actuator test is only possible when the boiler is cold. If the actuator test is carried out for one mixer, all other connected mixers remain in standard operation.

  • Page 9: Adjusting The Heating Curves

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) The following boiler actuators can be controlled subject to system equipment level (not required during commissioning): Display Explanation "Boiler pump ON" "Open boiler valve" "Close boiler valve" "Open valve accumulator [Open buffer valve]"...
  • Page 10 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Slope Outside temperature in °C Example for outside temperature The heating curve is offset along the axis −14 °C: of the set room temperature. When the heating circuit pump logic function has A Underfloor heating system, slope been enabled, it modifies the starting 0.2 to 0.8...
  • Page 11 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Standard room temperature 26°C Press the following keys in the standard menu: 20°C 1. |/~ for "Heating". 2. d to confirm. 3. Ù / Ú for selecting the heating cir- -20°C cuit.

  • Page 12: Shutting Down The System

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 6. d to confirm. 8. d to confirm. 7. |/~ for the required temperature. Changing slope and level Individually adjustable for each heating Press the following keys in the standard circuit.

  • Page 13: Cleaning The Flue Gas Fan And Lambda Probe

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Cleaning the flue gas fan and Lambda probe 1. Undo wing nuts on flue gas fan and 4. Clean Lambda probe with cleaning pull out motor with impeller. brush and ash vacuum cleaner and check for damage.
  • Page 14 Codes Code 1 Call up code 1 Press the following keys: 5. d to confirm. 1. d + å simultaneously for 6. |/~ for the required coding approx. 4 s. address. The "Service" menu is 7. d displayed. to confirm. 2.
  • Page 15 Codes Code 1 (cont.) Coding in the delivered condition Possible change Number of heating circuits used Number of 2 heating circuits instal- Number of possible number of heating HC:2 led. HC:0 circuits with 1 DHW circuit. Number of HC:2 Number of possible number of heating HC:0 circuits without addit.
  • Page 16 Codes Code 1 (cont.) Coding in the delivered condition Possible change Fan speed, burner 0D:80 Flue gas fan speed when 0D:0 Setting range from 0 to 100 the burner is in operation percent. as a percentage of the 0D: 100 maximum speed.
  • Page 17 Codes Code 1 (cont.) Coding in the delivered condition Possible change Summer eco function absolute A6:36 Extended economy mode A6:5 Extended economy mode disabled enabled, i.e. the heating A6:35 circuit pump will be switched OFF at a variable value, adjustable between 5 and 35 °C plus 1 °C.
  • Page 18 Codes Code 1 (cont.) Coding in the delivered condition Possible change Party mode time limit F2:8 Party mode can be active F2:0 No time limit for party mode for up to 8 hours. Party mode is deactivated when changing the heating program to "Heating".
  • Page 19 Codes Code 2 (cont.) Calling up code 2 Press the following keys: 4. d to confirm. 1. d + å simultaneously for 5. |/~ for the required coding approx. 4 s. address. The "Service" menu is displayed. 6. d to confirm. 2.
  • Page 20 Codes Code 2 (cont.) Heating Coding Coding in the delivered condition Possible change Not allocated to any function mode A3:+2 Outside temperature A3:-9 Setting range between below 1°C: Heating cir- -9° C and +15° C. Heating cuit pump „ON“ outside A3:+15 circuit pump „ON/ temperature higher than...
  • Page 21 Service scans Service functions The following service functions can be selected: ■ "Diagnosis" see from page 21 ■ "Actuator test" see from page 8 ■ "Code 1" see from page 14 ■ "Code 2" see from page 18 ■ "Boiler" ■...
  • Page 22 Service scans Diagnosis (cont.) Press the following keys: 5. g until the default display appears. This terminates the diagnosis. 1. d + å simultaneously for approx. 4 s. The Diagnosis menu is subdivided into The "Service" menu is the following sub-menus: displayed.
  • Page 23 Service scans Diagnosis (cont.) Diagnosis: Heating sub-menu Press Ù / Ú to select the corresponding heating circuit. "Heating program" "Operating status" "Time program" "Set room temperature" "Set red. room temp. Set" "Slope" "Level" "Heating circuit pump" Diagnosis: "DHW" sub-menu "Heating program" "Operating status"...
  • Page 24 Service scans Scanning operating conditions and sensors You can verify operating states and check sensors via the Information menu point in the "Advanced menu" and in the "Service menu" (in the Diagnosis + Boiler sub- menus).
  • Page 25 Troubleshooting Fault display The display signals faults with "Fault" and by lighting up the red fault indicator. Checking and acknowledging faults Note 2. |/~ to select the fault message to If an acknowledged fault is not remedied, be acknowledged, if several the fault message will be re-displayed faults are present.
  • Page 26 Troubleshooting Fault display (cont.) 2. |/~ for "Fault history". Fault Outside temp sensor 3. d to confirm. Fault O2 probe 4. |/~ for "Display". 5. Press g until the default display is shown. Acknowledge with Press the following keys: 1. d + å simultaneously for approx.
  • Page 27 Troubleshooting Fault display (cont.) Fault codes Displayed System characteris- Cause Measures fault code tics ■ Boiler pump ON ■ Too much wood ■ Activate „Draw off ■ Return tempera- charged. excess heat“ function. ture raising facility ■ Incorrect set ■ Check the cylinder tem- open value selected at perature before heating...
  • Page 28 Troubleshooting Fault display (cont.) Displayed System characteris- Cause Measures fault code tics Control mode Lead break, boiler Check boiler return sen- return sensor Control mode Lead break, flue Check flue gas sensor gas sensor Control unit set to Lead break, out- Check outside tempera- 0 °C outside temper- side temperature...
  • Page 29 Troubleshooting Fault display (cont.) Displayed System characteris- Cause Measures fault code tics Lead break, flow Check flow sensor, temperature sen- assembly 2 sor, assembly 2 Lead break, flow Check flow sensor, temperature sen- assembly 2 sor, assembly 3 Lead break, DHW Check the DHW tempera- temperature sen- ture sensor...
  • Page 30 Troubleshooting Repair (cont.) High limit safety cut-out ■ Factory-set to 100 °C ■ Limits the boiler water temperature to ■ Electromechanical temperature the maximum permissible value by switch according to the liquid expan- shutdown and lockout sion principle with lockout ■...
  • Page 31 Troubleshooting Repair (cont.) Specification Boiler water tem- Flue gas tempera- Outside tempera- perature sensor ture sensor ture sensor Buffer tempera- ture sensor Flow temperature sensor Return tempera- ture sensor Sensor type Pt1000 Pt1000 Pt1000 For heating circuit and DHW heating sensors, refer to chapter "Extension kit".
  • Page 32 Troubleshooting Repair (cont.) Specification Lambda probe curve 10 12 14 16 18 20 21 Oxygen O 2 (%) in the flue gas A ≙ λ = 1.5 Test point: Plug a:K, no. 3 and 4, see page 49 Probe type LSM 11 Permiss.
  • Page 33 Mixer circuit extension kit Overview of connections S1 Rotary selector Sensor connections for one heating cir- F1 Fuse cuit ? Flow sensor Plug 230 V~ sÖ Pump Sensor connections for DHW heating: fÖ Power supply 230 V/50 Hz ? DHW return sensor fÖA Power supply for accessories aJ DHW sensor (part no.: 7438702) Mixer motor...
  • Page 34 Mixer circuit extension kit Required settings A Rotary selector extension kit Quantity Setting at... Extension kit Extension kit Extension kit 1 (DHW) 1 (HC) 1 (HC) 3 (DHW) 1 (HC) 3 (HC) 1 (HC) 3 (HC) 5 (DHW) 1 (HC) 3 (HC) 5 (HC) Example for the settings at the rotary...
  • Page 35 ■ Flow temperature sensor (contact temperature sensor) Mixer circuit extension kit Specification Flow temperature sensor Sensor type Viessmann cylinder temperature sensor (NTC) IP rating IP 53 to EN 60 529; ensure through design/installation Permissible ambient temperature ■ during operation -20 to +90 °C ■...
  • Page 36 Mixer circuit extension kit Mixer circuit extension kit (cont.) Mixer motor Rated voltage 230 V~ Rated frequency 50 Hz Rated current Power consumption 5.5 W Protection class IP rating IP32 D to EN 60 529; ensure through design/installation Permissible ambient temperature ■...
  • Page 37 Mixer circuit extension kit Specification Rated voltage 230 V∼ Rated frequency 50 Hz Power consumption 4 W IP rating IP 42 Torque 3 Nm Runtime for 90° ∢ 120 s...
  • Page 38 Function description Display and control elements Boiler temperature 48 °C Heating Solar energy START Information STOP Select with Control functions Heating circuit control unit Brief description Time program ■ The control unit can regulate up to 3 The control unit time switch regulates in heating circuits using mixers M1, M2 accordance with the times programmed and M3.
  • Page 39 Function description Control functions (cont.) Extended economy mode changes via coding address "C6". The heating circuit pump is switched off Note and the flow temperature set value is set The maximum temperature limit is no to 0 °C, if one of the following criteria is substitute for the underfloor heating sys- met: tem temperature limiter.
  • Page 40 Designs Overview of PCB 100A A Connection, programming unit C LED B Battery D Fuse Pyromat ECO PCB s¢F Secondary air damp- !, aG and aNL Weather / flue gas sensor s¢D Primary air dampers ? and aJ FL and RT sensor a¢ÖA Hall sensor Lambda probe...
  • Page 41 Designs Overview of PCB (cont.) Buffer cylinder control valve, power cable, boiler pump, boiler valve, aBÖ high limit safety cut-...
  • Page 42 Designs Connection and wiring diagram 230V connection...
  • Page 43 Designs Connection and wiring diagram (cont.) LV connection...
  • Page 44 Designs 230 V plug Plug fA Assignment Function Additional information Flue gas fan L — — Flue gas fan N — — — — — — — — —...
  • Page 45 Designs 230 V plug (cont.) Plug aBA Assignment Function Additional information Fault message (common contact) floating contact Fault message max. 250 V, 2 A...
  • Page 46 Designs 230 V plug (cont.) Plug X1 Drawing, assignment 1 - 6...
  • Page 47 Designs 230 V plug (cont.) Drawing, assignment 7 - 9 Assignment Function Additional information Power supply L Power cable Power supply PE (max. fuse rating 6 A) Power supply N — Main burner max. 2 A (4 A fuse protection) Buffer cylinder valve open max.
  • Page 48 Designs 230 V plug (cont.) Plug aBÖ Assignment Function Additional information 230 V (high limit safety cut-out) — — — High limit safety cut-out — 230 V (jumper L) — N (jumper N) — N (jumper N) — 230 V (jumper L) —...
  • Page 49 Designs Plug, LV Plug a:K: Lambda probe Assignment Function Additional information Lambda probe 14 V + Heating (white) Lambda probe 14 V - Heating (white) Lambda probe + Actual value + (black)l Lambda probe GND GND - (grey) Note Test point: assignment 3 and 4 Plug ?: Flow sensor Assignment Function...
  • Page 50 Designs Plug, LV (cont.) Plug aJ: Return sensor Assignment Function Additional information Return sensor Pt1000 Return sensor GND — Plug !, aG and aNL Assignment Function Additional information Weather sensor Pt1000 Flue gas sensor Pt1000 — — GND (for both sensors) —...
  • Page 51 Designs Plug, LV (cont.) Plug ): Buffer cylinder sensor Assignment Function Additional information Buffer cylinder sensor 1 (top) Pt1000 Buffer cylinder sensor 2 Pt1000 Buffer cylinder sensor 3 Pt1000 — — — — GND (for all 3 sensors) —...
  • Page 52 Designs Plug, LV (cont.) Plug aVG: KM BUS KM Bus + KM Bus - Assignment Function Additional information KM BUS + — KM BUS - — Plug X15: CAN BUS Assignment Function D-sub pinout CAN BUS 24 V + Pin 8 + 9 CAN BUS 24 V - Pin 4 + 5...
  • Page 53 Designs Plug, LV (cont.) Assignment Function D-sub pinout CAN BUS High Pin 7 CAN BUS Low Pin 2 CAN BUS GND Pin 3 + 6 Plug a¢ÖA: Fan 100A 100A Assignment Function Additional information Rotary speed of fan (24 V +) Standby Hall sensor Fan speed input Standby Hall sensor...
  • Page 54 Designs Plug, LV (cont.) Plug s¢D: Primary air damper Assignment Function Additional information Primary air valve [Primary air damper] GND (black) Primary air valve [Primary air damper] Winding 1 (brown) Primary air valve [Primary air damper] Winding 2 (orange) Primary air valve [Primary air damper] GND (white) Primary air valve [Primary air damper] Winding 3 (red)
  • Page 55 Designs Plug, LV (cont.) Plug s¢F: Secondary air damper Assignment Function Additional information Secondary air valve [Secondary air GND (black) damper] Secondary air valve [Secondary air Winding 1 (brown) damper] Secondary air valve [Secondary air Winding 2 (orange) damper] Secondary air valve [Secondary air GND (white) damper] Secondary air valve [Secondary air...
  • Page 56 Parts lists Parts lists When ordering spare parts: 025 Insulating cover Quote the part and serial numbers (see 030 Locking device, charge door type plate) as well as the position num- 031 Handle, charge door/ash door ber of the required part (as per the parts 032 Sight glass list).
  • Page 57 Parts lists Parts lists (cont.)
  • Page 58 Parts lists Parts lists (cont.) 001/002...
  • Page 59 Parts lists Parts lists (cont.)
  • Page 60 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:...
  • Page 61 Specification Specification Pyromat ECO... Flue gas temperature (rated heating °C output, wood) Flue gas temperature °C (rated heating output, oil) Flue gas mass flow rate 30.4 35.2 (rated heating output, wood) Max. draught, wood ±0 ±0 ±0 ±0 Required chimney draught Pyromat ECO...
  • Page 62 Certificates Declaration of conformity We, Köb Holzheizsysteme GmbH, A-6922 Wolfurt, declare as sole responsible body that the product Pyromat ECO satisfies the following standards and directives: Applied standards: DIN EN 303-5, DIN 4702 DIN EN 60 335 EN 50081–1 Part 1 and Part 2 EN 61000-6-2 TRD 702 The Pyromat ECO meets the requirements of the following directives:...
  • Page 63 Appendix Wiring of plug, Pyromat Eco Overview of top terminal comb Summary of electrical connections and upper plug-in strip A Plug aVG: KM BUS B Plug a;S: Boiler control valve C Plug sL: Boiler circuit pump D Plug aML: Enable additional boiler, enable oil/gas burner E Plug fÖ: Power supply F Plug a;A: Buffer cylinder control valve G Plug ): Buffer cylinder sensor (from left to right: top, centre, bottom)
  • Page 64 Appendix Wiring of plug, Pyromat Eco (cont.) Overview of bottom terminal comb Summary of electrical connections, bottom plug-in strip A Plug !: Outside temperature sensor B Plug aVH C Plug aG and a¢ÖA: Flue gas sensor D Plug g¢]A: External fault message E Plug a¢Ö: Flue gas fan...
  • Page 65 Appendix Wiring of plug, Pyromat Eco (cont.) Plug aVG KM BUS for extension kits Plug a;S: Boiler control valve...
  • Page 66 Appendix Wiring of plug, Pyromat Eco (cont.) Plug sL: Boiler circuit pump Plug aML: Enable oil/gas burner max. 2A...
  • Page 67 Appendix Wiring of plug, Pyromat Eco (cont.) Plug aML: Enable additional boiler A Enable boiler Plug fÖ: Connect power supply...
  • Page 68 Appendix Wiring of plug, Pyromat Eco (cont.) Plug a;A: Buffer cylinder control valve Plug ): Buffer cylinder sensor A Buffer cylinder sensor bottom (Pt1000) B Buffer cylinder sensor centre (Pt1000) C Buffer cylinder sensor top (Pt1000)
  • Page 69 Appendix Wiring of plug, Pyromat Eco (cont.) Plug !: Outside temperature sensor A Pt1000 Plug aG and a¢ÖA flue gas sensor 100A A Pt1000...
  • Page 70 Appendix Wiring of plug, Pyromat Eco (cont.) Plug gÖA: External fault message A Signalling device (e.g. horn) Plug a¢Ö: Flue gas fan...
  • Page 71 Appendix Installation schemes Hydraulic installation example Note We recommend the use of a high limit safety cut-out with an underfloor heating system. WW DHW outlet KW Cold water supply, on site, 2.5 to 3.5 bar...
  • Page 72 Appendix Installation schemes (cont.) Connections ECO 33 to 55 and 65 ECO 61 to 151 Flow 1¼” 1½” Return 1¼” 1½” Cold water inlet On-site ½” ½” Cold water outlet ¾” ¾” On-site Required equipment Designation Pyromat ECO High limit safety cut-out Motor, primary air damper Motor, secondary air damper Motor, secondary air damper 2...
  • Page 73 Appendix Installation schemes (cont.) Designation Buffer cylinder control valve Heating water buffer cylinder 1 Buffer cylinder temperature sensor, top Buffer cylinder temperature sensor, centre Heating water buffer cylinder 2 Buffer cylinder temperature sensor, bottom Diaphragm expansion vessel, type-tested Hydraulic installation scheme 3 Buffer cylinder L Sequence of buffer cylinder sensors from left to right: bottom, centre, top)
  • Page 74 Keyword index Keyword index Extended economy mode....39 Acknowledging fault message...25 Extension kit Actuator test.........8 ■ Connections........33 Adjusting the heating curves....9 ■ Required settings......34 Adjusting the set room temperature...10 ■ Setting, rotary selector S1....34 Boiler water temperature sensor..30 Fault codes, summary......27 Fault display ■...
  • Page 75 Keyword index Keyword index (cont.) Mixer economy function.....39 Mixer modules........33 Reduced room temperature....11 Mixer motor........36 Relay test..........8 Outputs, checking........8 Scan...........21 Outside temperature......38 Scanning operating conditions...24 Scanning sensors......24 Scan temperatures......21 Sensors, checking........8 ■ 230V connection......42 Service functions........21 ■ 230 V plug........44 Specification ........61 ■...
  • Page 76 Viessmann Werke GmbH&Co KG Köb Holzheizsysteme GmbH D-35107 Allendorf Flotzbachstrasse 33 Telephone: +49 6452 70-0 A-6922 Wolfurt Fax: +49 6452 70-2780 Telefon: +43 (0)5574 6770-0 www.viessmann.com Telefax: +43 (0)5574 65707 www.kob.cc...

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