Viessmann KOB Pyromat ECO Service Instructions For Contractors Download Page 1

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Service instructions

for contractors

Pyromat ECO

Wood gasification boiler
for 50 cm or 100 cm logs

PYROMAT ECO

5604 447 GB

10/2010

Please keep safe.

Summary of Contents for KOB Pyromat ECO

Page 1: ...Service instructions for contractors Pyromat ECO Wood gasification boiler for 50 cm or 100 cm logs PYROMAT ECO 5604 447 GB 10 2010 Please keep safe ...

Page 2: ...f accidents all legal instructions regarding envi ronmental protection the Code of Practice of relevant trade associations all current safety regulations as defined by DIN EN DVGW TRGI TRF VDE and all locally applicable standards Gas Safety Installation Use Regu lations the appropriate Building Regulation either the Building regulations the Building Regulation Scotland Building Regulations Norther...

Page 3: ...static dis charges Touch earthed objects such as heating or water pipes to dis charge static loads Repair work Please note Repairing components which ful fil a safety function can compro mise the safe operation of your heating system Replace faulty components only with original Viessmann spare parts Ancillary components spare and wearing parts Please note Spare and wearing parts which have not bee...

Page 4: ... Troubleshooting Fault display 25 Repair 29 Mixer circuit extension kit Overview of connections 33 Required settings 34 Mixer circuit extension kit 35 Specification 37 Function description Display and control elements 38 Control functions 38 Designs Overview of PCB 40 Connection and wiring diagram 42 230 V plug 44 Plug LV 49 Parts lists 56 Commissioning service reports 60 Specification 61 Certific...

Page 5: ...5 Appendix Wiring of plug Pyromat Eco 63 Installation schemes 71 Keyword index 74 Index Index cont 5604 447 GB ...

Page 6: ...er ON 7 4 Matching the control unit to the heating system 7 5 Checking outputs and actuators 8 6 Adjusting the heating curves 9 7 Shutting down the system 12 8 Cleaning the combustion chamber 12 9 Cleaning the flue gas fan and Lambda probe 13 10 Emptying the ash pans if required 13 11 Checking the function of safety valves 12 Instructing the system user 13 Commissioning inspection maintenance Step...

Page 7: ...charge pressure of the diaphragm expansion vessel Permiss operating pressure 3 bar Test pressure 4 bar 3 Mark the fill pressure at the pressure gauge Switching the power ON Matching the control unit to the heating system Subject to the equipment level the control unit must be matched to the system Boiler temperature DHW Solar energy Information Select with 48 C Heating START STOP Check and possibl...

Page 8: ...tegories Boiler actuators Actuators for the corresponding mixer modules Press the following keys 1 d MENU simultaneously for approx 4 s The Service menu is displayed 2 for Actuator test 3 d to confirm 4 for the required actua tor category 5 d to confirm 6 for the required actua tor or relay output Note The actuator test is ter minated automatically if no input is made for 5 min 7 d to confirm 8 d ...

Page 9: ...of fault alarm system connected on site if installed The following mixer module actuators can be controlled separately depending on the module recommended during commissioning Display Explanation Pump on Open valve Close valve Adjusting the heating curves The heating curves illustrate the relationship between the outside temperature and the boiler water or flow temperature To put it simply The low...

Page 10: ...erature heating system slope 0 8 to 1 6 C Heating system with a boiler water temperature in excess of 75 C slope 1 6 to 2 0 Adjusting the set room temperature Individually adjustable for each heating circuit The heating curve is offset along the axis of the set room temperature When the heating circuit pump logic function has been enabled it modifies the starting and stopping characteristics of th...

Page 11: ... temperature 5 d to confirm 6 for the required temperature 7 d to confirm Reduced room temperature 3 14 20 C 110 3 C A D E B 20 C 14 C Adjustment of the reduced room temper ature from 3 to 14 C A Flow temperature in C B Outside temperature in C C Set room temperature in C D Heating circuit pump OFF E Heating circuit pump ON Press the following keys in the standard menu 1 å for Advanced menu 2 for ...

Page 12: ...ed menu 2 Ù Ú for selecting the heating cir cuit 3 for Heating curve 4 d to confirm 5 for Slope or Level 6 d to confirm 7 for the required value 8 d to confirm 9 With g back to the default display Shutting down the system Operating instructions Pyromat ECO Cleaning the combustion chamber Cleaning work to be carried out Clean the top combustion chamber Clean the tubular heat exchanger Clean the bot...

Page 13: ...ns if required Empty the ash box regularly The following must be emptied Ash pan hopper Ash pan tubular heat exchanger Operating instructions Pyromat ECO Instructing the system user Operating and service instructions File all parts lists operating and service instructions in the folder and hand this over to the system user Instructing the system user The installer should instruct the user in the o...

Page 14: ...played in categories that are subject to the respec tive system configuration Hardware Coding addresses See page 14 General Coding address 7F See page 15 Boiler Coding addresses 0A 0B to 0C 0D See page 15 Heating Coding addresses A5 A6 A7 C5 C6 F2 See page 16 DHW Coding addresses 0C 0D See page 18 Hardware Coding Coding in the delivered condition Possible change Number of DHW circuits used Number ...

Page 15: ...ram for all heating circuits 7F 0 Apartment building holi day program can be adjus ted separately Boiler Coding Coding in the delivered condition Possible change Additional heat source burner 0A 0 No additional heat source available 0A 1 Pyromat ECO features an oil burner 0A 2 External additional heat source available Additional heat source buffer charging operation 0B 0 No 0B 1 Yes Additional hea...

Page 16: ...tion room temperature A5 5 With heating circuit pump logic function economy mode Heating circuit pump OFF if outside temperature AT 1 K is greater than the room temperature set value RTset AT RTset 1 K A5 0 Without heating circuit pump logic A5 1 to A5 15 With heating circuit pump logic function Heating cir cuit pump OFF see fol lowing table 1 AT RTset 5 K 2 AT RTset 4 K 3 AT RTset 3 K 4 AT RTset ...

Page 17: ...to account Recommended setting A6 16 to A6 18 Mixer economy function A7 0 Without mixer economy function A7 1 With mixer economy func tion extended heating cir cuit pump logic Heating circuit pump also OFF The mixer has been closed for longer than 20 min Heating circuit pump ON Mixer changes to control function or If there is a risk of frost Flow temperature minimum limit C5 20 Electronic minimum ...

Page 18: ...automati cally 0C 1 to 0C 20 Fixed differential tempera ture adjustable between 1 C and 20 C DHW return temperature 0D 10 Flow control activated Set return temperature corresponds to DHW temperature plus 10 C 0D 0 Flow control deactivated Valve is always fully opened 0D 1 to 0D 30 Flow control activated Set return temperature corre sponds to DHW tempera ture plus value set in C Setting range betwe...

Page 19: ...al Coding Coding in the delivered condition Possible change 80 6 Minimum duration before a fault message is issued 80 0 to 80 199 Adjustable between 0 s and 995 s One setting increment corresponds to 5 s 81 1 Automatic summer win tertime changeover 81 0 Manual summer winter time changeover 90 128 Time constant for calcu lating adjusted outside temperature 21 3 h 90 0 to 90 199 Fast low values or s...

Page 20: ...that pipes outside the thermal envelope of the house could freeze up The standby mode in particular should be taken into consideration e g dur ing holidays Parameter Heating circuit pump Address A3 ON OFF 9 10 C 8 C 8 9 C 7 C 7 8 C 6 C 6 7 C 5 C 5 6 C 4 C 4 5 C 3 C 3 4 C 2 C 2 3 C 1 C 1 2 C 0 C 0 1 C 1 C 1 0 C 2 C 2 to 15 1 C to 14 C 3 C to 16 C Coding in the delivered condition Possible change No...

Page 21: ...rvice menu can be called up from any menu Press the following keys 1 d å simultaneously for approx 4 s The Service menu is displayed 2 for the required service function Leaving the service menu You can exit the service menu as fol lows By pressing g Automatically after 30 min Via menu point Terminate service Diagnosis Boiler temperature DHW Solar energy Information Select with 48 C Heating START S...

Page 22: ...actual outside temperature Central fault Ext output for on site fault signalling unit Time Displays the set time Date Displays the set date Diagnosis Boiler sub menu Boiler temperature Return temperature Flue gas temperature Flue 02 Residual flue gas O2 Primary air valve Primary air damper Steps Secondary air valve Secondary air damper Steps Exhaust blower Flue gas fan Specified in rpm Valve posit...

Page 23: ...pump Diagnosis DHW sub menu Heating program Operating status Time program DHW temperature nominal set DHW temperature actual Return temp nominal set Return temp actual Diagnosis KM BUS sub menu Press Ù Úto select the corresponding KM BUS subscriber Note Communication Fault Commands Status Sensor 1 Sensor 2 Mixer Hardware index Software index Software version Service scans Diagnosis cont 5604 447 G...

Page 24: ...ify 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 Service scans Scanning operating conditions and sensors 5604 447 GB ...

Page 25: ...u is displayed 2 for Fault history 3 d to confirm 4 for the list of current faults Plain text fault display The following faults are displayed as plain text The meaning of the fault and the fault code shown to the right are given in the table on page 27 Excessive temperature Repeat heat up O2 fault probe Boiler flow Boiler return Flue gas sensor Outside temperature sensor Buffer sensor top Buffer ...

Page 26: ...ry 3 d to confirm 4 for Display 5 Press g until the default display is shown Deleting the fault codes from the fault memory Press the following keys 1 d å simultaneously for approx 4 s The Service menu is displayed 2 for Fault history 3 d to confirm 4 for Delete 5 for Yes 6 d to confirm 7 Press g until the default display is shown Troubleshooting Fault display cont 5604 447 GB ...

Page 27: ...s the reset button only possible if the boiler water temper ature is below 70 C and acknowledge the fault 20 Control mode Short circuit boiler sensor Check boiler sensor 21 Control mode Short circuit boiler return sensor Check boiler return sen sor 22 Control mode Short circuit flue gas sensor Check flue gas sensor 24 Control unit set to 0 C outside temper ature Short circuit out side temperature ...

Page 28: ...ensor below Check buffer temperature sensor 41 Break in lead to mixer module 1 Check connection with mixer module 1 42 Break in lead to mixer module 2 Check connection with mixer module 2 43 Break in lead to mixer module 3 Check connection with mixer module 3 51 Short circuit flow sensor assembly 1 Check flow sensor assembly 1 52 Short circuit flow sensor assembly 2 Check flow sensor assembly 2 53...

Page 29: ...e sensor 65 Lead break DHW return temperature sensor Check the DHW return sensor 90 Fuel too damp Lambda probe inaccurate Logs poorly charged Use suitable dry fuel Recalibrate Lambda probe Acknowledge with OK 91 Lambda probe heavily soiled Lambda probe faulty Electronics fault Recalibrate Lambda probe Acknowledge with OK Repair Fuse for location see the connection and wiring diagram on page 42 F1 ...

Page 30: ... long sensor 7 6 5 mm 65 mm long Electrical test in accordance with VDE 0701 or local regulations Boiler buffer cylinder sensor Connection See chapter Connection and wiring dia gram page 42 Checking sensors Temperature in C 0 100 200 300 400 500 0 75 1 25 1 75 2 25 2 75 3 25 Resistance in kΩ 1 Pull corresponding plug 2 Check the sensor resistance at the plug 3 Compare the result with the actual te...

Page 31: ... cable for pos sible damage Notes Never paint wax or treat the probe with any other substance Only use special grease suitable for Lambda probes to lubricate the threads Never solder the connecting cable it may only be crimped clamped or secured with screws Connection The oxygen is connected with plug a K see chapter Connection and wiring dia gram page 42 Calibrating the Lambda probe 1 Cleaning th...

Page 32: ... 5 Test point Plug a K no 3 and 4 see page 49 Probe type LSM 11 Permiss ambient temperature during storage and transport 40 to 100 C during operation 150 to 600 C constant flue gas temperature with the heating system switched on 800 C max flue gas temperature with the heat ing system switched on 200 h cumulative Troubleshooting Repair cont 5604 447 GB ...

Page 33: ...r accessories gS Mixer motor Note Pay attention to DHW sensor connec tions The part number for the sensor that is required for plug aJ is 7438702 Sensor connections for one heating cir cuit Flow sensor Sensor connections for DHW heating DHW return sensor aJ DHW sensor part no 7438702 Mixer circuit extension kit Overview of connections 5604 447 GB ...

Page 34: ... HC Example for the settings at the rotary selectors S1 of the extension kits for 2 heating circuits 1 DHW heating 2 3 4 5 6 1 0 9 87 2 3 4 5 6 1 0 9 87 2 3 4 5 6 1 0 9 87 A B C A Rotary selector extension kit heat ing circuit 1 set value 1 B Rotary selector extension kit heat ing circuit 2 set value 3 C Rotary selector extension kit DHW heating set value 5 Mixer circuit extension kit Required set...

Page 35: ...ication 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 during storage and transport 20 to 70 C Curve 0 1 1 10 100 0 20 40 60 80 100 Temperature in C Resistance in kΩ 25 Mixer circuit extension kit Mixer circuit extension kit 5604 447 GB ...

Page 36: ...the relay outputs Heating circuit pump 2 1 A 230 V Mixer motor 0 2 0 1 A 230 V Mixer motor Changing the rotational direction if required 1 Switch OFF the power 2 Remove the casing cover see chap ter Overview of electrical connec tions 3 gS BU Interchange cores BK and BK of plug gS 4 Refit the casing cover 5 Check the rotational direction Manual mixer adjustment Lift the motorised lever unhook the ...

Page 37: ...37 Rated voltage 230 V Rated frequency 50 Hz Power consumption 4 W IP rating IP 42 Torque 3 Nm Runtime for 90 120 s Mixer circuit extension kit Specification 5604 447 GB ...

Page 38: ... circuit control see coding summary Functions The heating circuit flow temperature is captured by the flow temperature sen sor Time program The control unit time switch regulates in accordance with the times programmed in the Heating program between cen tral heating with standard room temper ature and central heating with reduced room temperature Every operating mode has its own set level Outside ...

Page 39: ...ch cases the flow temperature reduces only slowly i e it may be several hours before the system restarts again automatically Lower control range limit Electronic minimum temperature limit Setting range 1 to 127 ºC Change via coding address C5 Only enabled during operation with standard room temperature DHW temperature control Brief description The cylinder temperature controller regulates with a c...

Page 40: ...se Pyromat ECO PCB s F Secondary air damp ers s D Primary air dampers a ÖA Hall sensor aVH Not assigned X15 CAN BUS aVG KM BUS Buffer cylinder sensor aG and aNL Weather flue gas sensor and aJ FL and RT sensor a K Lambda probe a J Not assigned fA Flue gas fan gJ Not assigned aBA Fault message Designs Overview of PCB 5604 447 GB ...

Page 41: ...41 X1 Buffer cylinder control valve power cable boiler pump boiler valve aBÖ high limit safety cut out Designs Overview of PCB cont 5604 447 GB ...

Page 42: ...42 230V connection Designs Connection and wiring diagram 5604 447 GB ...

Page 43: ...43 LV connection Designs Connection and wiring diagram cont 5604 447 GB ...

Page 44: ...44 Plug fA Assignment Function Additional information 1 Flue gas fan L PE 2 Flue gas fan N 3 5 6 7 Designs 230 V plug 5604 447 GB ...

Page 45: ...45 Plug aBA Assignment Function Additional information 1 Fault message common contact floating contact 2 Fault message max 250 V 2 A Designs 230 V plug cont 5604 447 GB ...

Page 46: ...46 Plug X1 Drawing assignment 1 6 1 2 3 4 5 6 7 X1 Designs 230 V plug cont 5604 447 GB ...

Page 47: ...upply N 4 Main burner max 2 A 4 A fuse protection 5 Buffer cylinder valve open max 0 5 A 4 A fuse protection 6 Buffer cylinder valve close max 0 5 A 4 A fuse protection 7 Boiler valve open max 0 5 A 4 A fuse protection 8 Boiler valve close max 0 5 A 4 A fuse protection 9 Boiler pump max 2 A 4 A fuse protection Designs 230 V plug cont 5604 447 GB ...

Page 48: ...g aBÖ Assignment Function Additional information 1 230 V high limit safety cut out 2 3 High limit safety cut out 4 230 V jumper L 5 N jumper N 6 N jumper N 7 230 V jumper L Designs 230 V plug cont 5604 447 GB ...

Page 49: ...e 14 V Heating white 2 Lambda probe 14 V Heating white 3 Lambda probe Actual value black l 4 Lambda probe GND GND grey Note Test point assignment 3 and 4 Plug Flow sensor 2 GND Assignment Function Additional information 1 Flow sensor Pt1000 2 Flow sensor GND Designs Plug LV 5604 447 GB ...

Page 50: ...n Additional information 1 Return sensor Pt1000 2 Return sensor GND Plug aG and aNL 1 15 GND 15 1 169 Assignment Function Additional information 1 Weather sensor Pt1000 2 Flue gas sensor Pt1000 3 4 GND for both sensors Designs Plug LV cont 5604 447 GB ...

Page 51: ...er sensor 9 9 Assignment Function Additional information 1 Buffer cylinder sensor 1 top Pt1000 2 Buffer cylinder sensor 2 Pt1000 3 Buffer cylinder sensor 3 Pt1000 4 5 6 GND for all 3 sensors Designs Plug LV cont 5604 447 GB ...

Page 52: ...US KM Bus KM Bus 145 145 Assignment Function Additional information 1 KM BUS 2 KM BUS Plug X15 CAN BUS X15 Assignment Function D sub pinout 1 CAN BUS 24 V Pin 8 9 2 CAN BUS 24 V Pin 4 5 Designs Plug LV cont 5604 447 GB ...

Page 53: ... BUS High Pin 7 4 CAN BUS Low Pin 2 5 CAN BUS GND Pin 3 6 Plug a ÖA Fan 100A 100A Assignment Function Additional information 1 Rotary speed of fan 24 V Standby Hall sensor 2 Fan speed input Standby Hall sensor Designs Plug LV cont 5604 447 GB ...

Page 54: ...mper GND black 2 Primary air valve Primary air damper Winding 1 brown 3 Primary air valve Primary air damper Winding 2 orange 4 Primary air valve Primary air damper GND white 5 Primary air valve Primary air damper Winding 3 red 6 Primary air valve Primary air damper Winding 4 yellow Designs Plug LV cont 5604 447 GB ...

Page 55: ...D black 2 Secondary air valve Secondary air damper Winding 1 brown 3 Secondary air valve Secondary air damper Winding 2 orange 4 Secondary air valve Secondary air damper GND white 5 Secondary air valve Secondary air damper Winding 3 red 6 Secondary air valve Secondary air damper Winding 4 yellow Designs Plug LV cont 5604 447 GB ...

Page 56: ...018 Drive set 019 Casing right 020 Casing left 021 Casing hopper cover 022 Casing cleaning cover 023 Casing front 024 Casing rear 025 Insulating cover 030 Locking device charge door 031 Handle charge door ash door 032 Sight glass 033 Turbulator 1 pce 034 Insulation cleaning aperture 035 Clamping piece 4 pcs 036 Cover burner aperture 037 Ash box 038 Side ash box 043 Insulation ash door 044 Mushroom...

Page 57: ...57 030 022 021 020 025 031 031 012 019 025 044 024 024 035 Parts lists Parts lists cont 5604 447 GB ...

Page 58: ...58 008 004 001 002 032 043 037 038 007 007 007 009 002 005 Parts lists Parts lists cont 5604 447 GB ...

Page 59: ...59 006 006 006 007 034 036 013 015 018 014 016 033 017 015 003 Parts lists Parts lists cont 5604 447 GB ...

Page 60: ...rvice Service date by Service Service Service date by Service Service Service date by Service Service Service date by Service Service Service date by Commissioning service reports Commissioning service reports 5604 447 GB ...

Page 61: ... heating output wood C 180 180 180 180 Flue gas temperature rated heating output oil C 172 172 168 168 Flue gas mass flow rate rated heating output wood g s 58 4 72 88 108 Max draught wood 3 Pa 25 25 25 25 Required chimney draught 4 Pa 0 0 0 0 1 Maximum overpressure in the start phase chimney cold in the flue pipe down stream of the flue gas fan 2 No draught limiter required 3 Maximum overpressure...

Page 62: ...1000 6 2 TRD 702 The Pyromat ECO meets the requirements of the following directives 98 37 EC Machine Directive 89 336 EEC EMC Directive 73 23 EEC Low Voltage Directive 97 23 EC Pressure Equipment Directive In accordance with the following Directives this product is designated _ 2006 95 EG 2004 108 EG 2006 42 EG Wolfurt 01 September 2010 Köb Holzheizsysteme GmbH Dr S Hoffmann Managing Director Cert...

Page 63: ... N Pt1000 N A B C D F E G 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 Appendix Wiring of plug Pyromat Eco 5604 447 GB...

Page 64: ...1 L1 PE N 100 50A M 1 Pt1000 N Pt1000 N A B C D E 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 Appendix Wiring of plug Pyromat Eco cont 5604 447 GB ...

Page 65: ...65 Plug aVG KM BUS for extension kits 21 22 23 KM BUS 145 Plug a S Boiler control valve L2 PE N L1 L3 Y1 Y2 N 182 Appendix Wiring of plug Pyromat Eco cont 5604 447 GB ...

Page 66: ...66 Plug sL Boiler circuit pump L1 PE N M 1 29 Plug aML Enable oil gas burner L1 PE N 13 14 11 12 11 12 179 max 2A Appendix Wiring of plug Pyromat Eco cont 5604 447 GB ...

Page 67: ...67 Plug aML Enable additional boiler L1 PE N 179 A L1 A Enable boiler Plug fÖ Connect power supply N PE L1 230V 50Hz 6A 40 Appendix Wiring of plug Pyromat Eco cont 5604 447 GB ...

Page 68: ...T1 T2 S3 B4 Y1 Y2 N 181 Plug Buffer cylinder sensor T1 T2 S3 B4 N N N A B C 9 A Buffer cylinder sensor bottom Pt1000 B Buffer cylinder sensor centre Pt1000 C Buffer cylinder sensor top Pt1000 Appendix Wiring of plug Pyromat Eco cont 5604 447 GB ...

Page 69: ...69 Plug Outside temperature sensor 21 22 23 N 1 A A Pt1000 Plug aG and a ÖA flue gas sensor 21 22 23 21 22 23 N 15 100A A A Pt1000 Appendix Wiring of plug Pyromat Eco cont 5604 447 GB ...

Page 70: ...70 Plug gÖA External fault message S3 T2 T1 50A A N L A Signalling device e g horn Plug a Ö Flue gas fan L1 PE N M 1 100 Appendix Wiring of plug Pyromat Eco cont 5604 447 GB ...

Page 71: ...he use of a high limit safety cut out with an underfloor heating system 1 KW WW 3 4 5 6 7 9 8 12 10 11 15 16 13 14 17 18 19 20 21 22 23 24 25 26 27 28 A B WW DHW outlet KW Cold water supply on site 2 5 to 3 5 bar Appendix Installation schemes 5604 447 GB ...

Page 72: ...ivated safety valve TS R individually tested opening temper ature 95 100 C safety heat exchanger integrated into the boiler qW Return temperature sensor qE Temperature indicator thermometer qR Pressure gauge qT Boiler circuit pump qZ Return temperature raising facility qU Air separator recommended absorption deaerator qI Safety valve max setting pressure 3 0 bar type tested according to DIN 3440 N...

Page 73: ...er cylinder temperature sensor centre wZ Heating water buffer cylinder 2 wU Buffer cylinder temperature sensor bottom wI Diaphragm expansion vessel type tested Hydraulic installation scheme 3 Buffer cylinder KW WW H L L Sequence of buffer cylinder sensors from left to right bottom centre top Appendix Installation schemes cont 5604 447 GB ...

Page 74: ...on of conformity 62 Deleting fault codes 26 Display elements 38 E Economy mode 38 Emptying the ash pans 13 Extended economy mode 39 Extension kit 33 Connections 33 Required settings 34 Setting rotary selector S1 34 F Fault codes summary 27 Fault display Acknowledging 25 Hiding 25 Plain text 25 Fault history 25 Fault memory 25 Faults 25 Flow temperature Electronic Minimum limit 17 maximum limit 17 ...

Page 75: ... 55 Plug 1 50 Plug 100A 53 Plug 145 52 Plug 15 50 Plug 150 48 Plug 151 45 Plug 169 50 Plug 17 50 Plug 198 49 Plug 2 49 Plug 203 54 Plug 204 55 Plug 41 44 Plug 9 51 Plug X1 46 Plug X15 52 R Reduced room temperature 11 Relay test 8 S Scan 21 Scanning operating conditions 24 Scanning sensors 24 Scan temperatures 21 Sensors checking 8 Service functions 21 Specification 61 Standard room temperature 11 ...

Page 76: ...n 43 0 5574 6770 0 Telefax 43 0 5574 65707 www kob cc Viessmann Werke GmbH Co KG D 35107 Allendorf Telephone 49 6452 70 0 Fax 49 6452 70 2780 www viessmann com 5604 447 GB Subject to technical modifications Printed on environmentally friendly chlorine free bleached paper ...

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Viessmann KOB Pyromat ECO, Service Instructions For Contractors

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