Viessmann VITOTRONIC 300 Installation And Service Instructions Manual
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Viessmann VITOTRONIC 300 Installation And Service Instructions Manual

For contractors. type cm1e, cc1e
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See also: Instruction and Installation Manual , Technical Data Manual
VIESMANN
Installation and service instructions
for contractors
Vitotronic 300
Type CM1E
Weather-compensated control unit for a multi boiler system (cascade) and to con-
trol the boiler water temperature
Vitotronic 100
Type CC1E
Control of the boiler water temperature for each additional boiler in the cascade
With BASE E control unit
VITOTRONIC 300
VITOTRONIC 100
Please keep safe.
5863747 GB
10/2019

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Summary of Contents for Viessmann VITOTRONIC 300

  • Page 1 VIESMANN Installation and service instructions for contractors Vitotronic 300 Type CM1E Weather-compensated control unit for a multi boiler system (cascade) and to con- trol the boiler water temperature Vitotronic 100 Type CC1E Control of the boiler water temperature for each additional boiler in the cascade...
  • Page 2 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 Viessmann. water pipes to discharge static loads. Repair work Please note Repairing components that fulfil a safety function can compromise the safe operation of the system. Replace faulty components only with genuine Viessmann spare parts.
  • Page 4 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

    Connecting external safety equipment ..........36 Provisional burner operation ..............37 Connecting an AC burner ..............38 Pressure-jet oil/gas burner ..............38 ■ Viessmann MatriX burner for Vitocrossal ........... 38 ■ Connecting a three-phase burner ............40 Potential-free safety chain ..............40 ■...
  • Page 7 Example of a multi boiler system ............49 ■ Carrying out the LON subscriber check ..........50 ■ Selecting the boiler sequence at the Vitotronic 300 ....... 51 Adjusting the heating curve ..............51 Adjusting the set room temperature ........... 52 ■...
  • Page 8 93 Central fault message during emissions test function/service dis- ■ play ..................... 67 97 LON communication module: Outside temperature ...... 68 ■ 98 Viessmann system number ............68 ■ 9C LON subscriber monitoring ............68 ■ Boiler, Vitotronic 300 ................69 02 Burner type ................
  • Page 9 26 ECO threshold boiler 7 ............. 79 ■ 27 ECO threshold boiler 8 ............. 79 ■ DHW, Vitotronic 300 ................79 00 Tank heating ................79 ■ 01 Selection of set DHW temperature ..........80 ■ 03 Additional function for increased DHW heating ......80 ■...
  • Page 10 27 Cyclical heating time ..............88 ■ 28 Cyclical pause time ................ 88 ■ Heating circuit 1, heating circuit 2, heating circuit 3, Vitotronic 300 ..89 00 Remote control recognition ............89 ■ 01 Remote control blocking ..............89 ■...
  • Page 11 81 Automatic summer/wintertime changeover ......104 ■ 93 Central fault message during emissions test function/service dis- ■ play ..................... 104 98 Viessmann system number ............105 ■ 9C LON subscriber monitoring ............105 ■ Boiler, Vitotronic 100 ................105 02 Burner type ................105...
  • Page 12 Index Index 9. Diagnosis and service Calling up the service menu ..............112 scans Exiting the service menu ................ 113 Change passwords ................113 Resetting all passwords to their factory settings ........113 Diagnosis ....................113 Scanning operating data ..............113 ■...
  • Page 13 Index Index A2 Fault message module 2: Safety equipment 3 ......124 ■ A3 Fault message module 2: Safety equipment 4 ......124 ■ A7 Fault clock module in programming unit ........124 ■ AA Configuration fault, TSA function ..........124 ■...
  • Page 14 ■ Vitotronic 100 ..................154 Overview .....................154 ■ PCB 230 V~ ..................155 ■ PCB, low voltage ................156 ■ 14. Specification Specification for Vitotronic 300 and Vitotronic 100 ........ 158 15. Certificates Declaration of conformity ............... 159 16. Keyword index ........................160...

  • Page 15: Liability

    The Viessmann General Terms and Conditions apply, savings, or other direct or indirect consequential losses which are included in each current Viessmann pricelist. resulting from use of the Vitocom or the corresponding Use of Vitoguide is subject to the Vitoguide data pro- internet services.

  • Page 16: Information Disposal Of Packaging

    Do not dispose of component in domestic waste. Intended use The device is intended to control only Viessmann Incorrect usage or operation of the appliance (e.g. the medium sized and industrial/commercial boilers with oil appliance being opened by the system user) is prohibi- or gas burners, in line with the intended use of those ted and will result in an exclusion of liability.

  • Page 17: Product Information

    Control of the boiler water temperature for the boiler with Vitotronic 300 Note Vitotronic 100, type CC1E The Vitotronic 300 can alternatively be configured for ■ Control of the boiler water temperature for each addi- one of the following areas of application: tional boiler in the cascade ■...

  • Page 18: Installation Sequence Installing The Extension For Heating Circuits 2 And 3

    Installation sequence Installing the extension for heating circuits 2 and 3 Only for Vitotronic 300, type CM1E Note Extension connection for heating circuits 2 and 3: See chapter "Connecting extension for heating circuits 2 and 3". Fig. 1 Installing the LON communication module Parameters to be configured during initial start-up: See chapter "Connecting the control unit to the LON".

  • Page 19: Adjusting The High Limit Safety Cut-Out (If Required)

    Installation sequence Inserting the coding card (cont.) Fig. 3 Note Coding card to boiler assignment: See www.vitotronic.info Adjusting the high limit safety cut-out (if required) The high limit safety cut-out is supplied with a factory setting of 110 °C. Example: Conversion to 100 °C °C Fig.

  • Page 20: Adjusting The Temperature Controller (If Required)

    Installation sequence Adjusting the temperature controller (if required) The temperature controller is supplied with a factory setting of 95 °C. Please note Excessive DHW temperatures can damage the DHW cylinder. If the system is operated in conjunction with a DHW cylinder, ensure that the maximum permis- sible water temperature is not exceeded.

  • Page 21: Mounting Control Unit Front

    Installation sequence Mounting control unit front Fig. 6 Please note The use of tools to remove the programming unit can cause scratching of the programming unit. With the control unit open, push the program- ming unit out from the inside.

  • Page 22: Opening The Control Unit

    Installation sequence Opening the control unit Fig. 7 Inserting cables and applying strain relief Control unit fitted to the boiler: ■ Route cables from below through the boiler front panel, into the control unit wiring chamber. ■ Control unit fitted on the side of the boiler: Route cables from below out of the cable channel into the control unit.
  • Page 23 PCB, low voltage Coding card: See page 18. PCB 230 V~ LON communication module: See page 16 18. Vitotronic 300, type CM1E: Standard delivery Vitotronic 100, type CC1E: Accessories Extension connections for heating circuits 2 and 3, each with mixer Plug...
  • Page 24 External functions via EA1 extension Additional external functions via EA1 extension: ■ External demand with common system flow tempera- The EA1 extension is connected to the Vitotronic 300 ture: See page 35 via plug ■ External system blocking: See page 32 External operating program changeover: See ■...

  • Page 25: Connecting The Extension For Heating Circuits 2 And 3

    Electrical connections Overview of electrical connections (cont.) Plug Component Vitotronic 300 Vitotronic 100 Power supply fÖ Boiler burner stage 1 Central fault message facility gÖ One of the following functions: Motorised butterfly valve, boiler ■ Mixing valve for boiler return temperature ■...

  • Page 26: Connecting The Network Module

    Network module and programming unit power cable Connecting sensors Fig. 12 Connections on the low voltage PCB Plug Component Vitotronic 300 Vitotronic 100 Outside temperature sensor — Boiler water temperature sensor § One of the following temperature sensors: Cylinder temperature sensor —...

  • Page 27: Outside Temperature Sensor

    Electrical connections Connecting sensors (cont.) Plug Component Vitotronic 300 Vitotronic 100 Cylinder temperature sensor (bottom) in a cyl- — inder loading system Common flow temperature sensor — Flue gas temperature sensor One of the following temperature sensors: Therm-Control temperature sensor ■...

  • Page 28: Ciency Circulation Pumps

    Electrical connections Connecting pumps (cont.) Plug Component Vitotronic 300 Vitotronic 100 One of the following circulation pumps: Shunt pump ■ Boiler circuit pump ■ Boiler circuit pump with butterfly valve func- ■ tion Distribution pump — ■ DHW circulation pump power supply DHW circulation pumps with their own internal control unit must be connected to a separate power supply.
  • Page 29 Electrical connections Connecting pumps (cont.) Pumps without switching input N PE Fig. 15 Pump To the control unit Contactor Separate mains connection (observe manufactur- er's instructions) Pumps 400 V~ Rated current for switching the contactor: 4(2) A~ L1 L2 L3 N PE Fig.

  • Page 30: Pumps In The Underfloor Heating Circuit

    Electrical connections Connecting pumps (cont.) Pumps in the underfloor heating circuit The common power consumption of both pumps must sÖ not exceed 2 A. Fig. 17 Control unit sÖ Primary heating circuit pump Temperature limiter for limiting the maximum tem- perature Secondary heating circuit pump (for system separation)

  • Page 31: Connecting Actuators

    "16" in the "Heating circuit..." group OPEN CLOSE Connecting a central fault message facility Plug gÖ Rated voltage 230 V~ ■ Vitotronic 300: All system faults are transferred. Rated current Max. 4(2) A~ ■ Vitotronic 100: Faults from the respective boiler are transferred. Fig. 20...

  • Page 32: External Functions

    External changeover, stepped/modulating boiler burner External system functions Function Plug/contact Page Connections to the Vitotronic 300 low voltage PCB External demand with common system flow temperature Connections at EA1 extension External demand with common system flow temperature DE1, DE2 or DE3 ■...

  • Page 33: Adding External Boiler As Last In Boiler Sequence

    Live contacts lead to short circuits or phase fail- ure. The external connection must be potential- free. Function Start the boiler externally as the last one in the boiler sequence Control unit Vitotronic 300 (for assigned boilers) ■ Vitotronic 100 ■ Connection Plug Floating contact...

  • Page 34: External Changeover Of Multi Stage/Modulating Burners

    Live contacts lead to short circuits or phase fail- ure. The external connection must be potential- free. Function External changeover, stepped / modulating burner Control unit Vitotronic 300 (for assigned boilers) ■ Vitotronic 100 ■ Connection Floating contact Contact Closed Two-stage operation ■...

  • Page 35: External Demand, Common System Flow Temperature

    Live contacts lead to short circuits or phase fail- ure. The external connection must be potential- free. Function External demand with common system flow temperature Control unit Vitotronic 300 (for EA1 extension (for entire system) entire system) Connection Plug DE1, DE2 or DE3 0 to 10 V input...

  • Page 36: External Operating Program Changeover (Heating Circuits)

    Electrical connections External functions (cont.) External operating program changeover (heating circuits) Please note Live contacts lead to short circuits or phase fail- ure. The external connection must be potential- free. Function External operating program changeover Control unit EA1 extension (for entire system) Connection DE1, DE2 or DE3 Floating contact...

  • Page 37: Provisional Burner Operation

    Electrical connections Connecting external safety equipment (cont.) ON ON N STB TR TR Fig. 21 Jumper "STB" "STB" Maximum pressure limiter – Low water indicator, minimum pressure limiter Further safety equipment 1. Remove jumper "STB" "STB". Note – With multiple safety devices, the plug-in adaptor for 2.

  • Page 38: Connecting An Ac Burner

    → Signal flow direction: Burner without plug Burner control unit Fit the mating plug from Viessmann or from the burner → manufacturer. Connect the burner cables. Plug equipment codes STB Control unit high limit safety cut-out Control unit temperature controller...
  • Page 39 Electrical connections Connecting an AC burner (cont.) B4 S3 T2 T1 N T7T8 Fig. 26 Fig. 25 To the control unit To the control unit To the burner To the burner Terminal designations: Plug terminal designations T6, T8 Control chain burner stage 2 ON or modulation Phase via high limit safety cut-out to the burner controller Open Earth conductor to burner...

  • Page 40: Connecting A Three-Phase Burner

    Electrical connections Connecting a three-phase burner Potential-free safety chain Note A jumper from the external conductor to the control voltage in the burner may have to be removed. Always observe the burner manufacturer's details. Fig. 27 Control unit Base load/full load Main contactor (on site) Control unit power supply fÖ...

  • Page 41: Safety Chain Not Potential-Free

    Hours run meter stage 1 Safety chain (STB) Making the LON connection The Viessmann LON is designed for "line" bus topol- Cable types (on site): ogy with a terminator at both ends (accessories). ■ 2-core cable, CAT5, screened The transfer distances for LON are subject to the elec- JY(St)Y 2 x 2 x 0.8 mm (telephone cable)

  • Page 42: Connection Examples

    Boiler and heating circuit control unit or Vitocontrol LON subscriber, e.g. heating circuit control unit Vitocom or Vitogate Terminator (2 pce) Integrated into Viessmann appliances with only one LON interface LON cable, 7 m long LON coupling LON plug-in connector (2 pce)
  • Page 43 Electrical connections Power supply (cont.) Additional regulations for oil and gas combustion Danger equipment Incorrect core assignment can result in serious ■ Observe the national combustion equipment ordi- injury and damage to the appliance. nance for your local region. Never interchange cores "L" (brown) and "N" ■...

  • Page 44: Control Unit Power Supply

    Electrical connections Power supply (cont.) Control unit power supply 1. Check whether the power cable to the control unit has appropriate fuse protection. 2. Connect the power cable in the junction box and at plug (on site). fÖ 3. Insert plug into the control unit.
  • Page 45 Electrical connections Power supply (cont.) 1. Check whether the power cable to the mains filter 4. Insert plug fÖ and plug of the mains filter unit unit has appropriate fuse protection. connecting cable into the appropriate control unit socket. 2. Connect the power cable in the junction box and at plug (on site).

  • Page 46: Commissioning Commissioning The System

    11. Set calculated values in parameter level 2 in 05. "Actuator test" "Boiler" group for all Vitotronic 100 and the Vitotronic 300 for the assigned boiler: See follow- 06. "Burner stage 2" ing table. 07. Determine the maximum burner output by means of the fuel consumption.

  • Page 47: Matching The Control Unit To The Modulating Burner

    15. Set calculated values in parameter level 2 in "Boiler" group for all Vitotronic 100 and the 08. Determine the maximum burner output by means Vitotronic 300 for the assigned boiler: See follow- of the fuel consumption. ing table. Record the relevant value.

  • Page 48: Vitotronic 300

    Check all parameters in Parameter level 1 and adjust Check the following parameters in Parameter level 2 if required. and set according to requirements: Parameter Parameter group Display 53:... General, Vitotronic 300 Connection on plug sÖ 54:... General, Vitotronic 300 Connection on plug 55:... General, Vitotronic 300 Connection on plug 98:...

  • Page 49: Integrating The Control Unit Into Lon

    07:... Boiler, Vitotronic 100 Consecutive boiler number in multi boiler sys- tems Note The boiler with the Vitotronic 300 is always boiler number "1". For boilers with Vitotronic 100, set values "2" to "8" only. 0C:... Boiler, Vitotronic 100 Function butterfly valve/return temperature...

  • Page 50: Carrying Out The Lon Subscriber Check

    Commissioning Integrating the control unit into LON (cont.) Vitotronic 100 Vitotronic 100 Vitotronic 300 Vitotronic 200-H Vitocom or Vitogate Subscriber no. 1. Subscriber no. 2. Subscriber no. 9. Subscriber no. 10. Vitogate 300: Sub- ■ Parameter "77:2" in Set parameter "77:3"...

  • Page 51: Selecting The Boiler Sequence At The Vitotronic 300

    Unsuccessfully checked subscribers are indicated by "Check not OK". to refresh the subscriber list in order to carry out another subscriber check. Selecting the boiler sequence at the Vitotronic 300 Tap the following buttons: 3. Select the required boiler sequence. Use confirm.

  • Page 52: Adjusting The Set Room Temperature

    Commissioning Adjusting the heating curve (cont.) Slope -5 -10 -15 -20 Outside temperature in °C Fig. 35 Example for outside temperature 14 °C − Underfloor heating system, slope 0.2 to 0.8 Low temperature heating system, slope 0.8 to 1.6 Heating systems with a boiler water temperature in excess of 75 °C, slope greater than 1.6 Adjusting the set room temperature Individually adjustable for each heating circuit.

  • Page 53: Changing The Slope And Level

    The actuators listed in the table can be tested at the 2. "Service" relay outputs, subject to system equipment level and control unit. 3. Enter the password "viservice". Display Explanation Vitotronic 300 Vitotronic 100 All actuators All actuators are off. Burner Burner ON Burner stage 1...
  • Page 54 Commissioning Checking outputs (actuator test) (cont.) Display Explanation Vitotronic 300 Vitotronic 100 Burner stage 2 Burner stages 1 and 2 switch Burner modulation OPEN Modulating burner opens. Neutral Modulating burner neutral. CLOSE Modulating burner closes. Output 20 Actuator at output sÖ...
  • Page 55 Commissioning Checking outputs (actuator test) (cont.) Information regarding the mixer motor rotational direction ■ Flow temperature control/heating circuit control unit: The flow temperature must rise when the mixer opens. If the temperature drops, the motor is turning in the wrong direction or the mixer set is incorrectly fitted (observe the mixer installation instructions).

  • Page 56: Parameter Levels Parameter Levels

    Tap the following buttons: 09. Use for the required value in line with the tables below 02. "Service" 10. Use to confirm. 03. Enter the password "viservice". Parameter groups Vitotronic 300 Vitotronic 100 General General ■ ■ Boiler Boiler ■...

  • Page 57: System Scheme

    Parameters, Vitotronic 300 General, Vitotronic 300 Parameter values in bold are factory settings. 00 System scheme Display Value Explanations Heating circuit 1, without DHW heating 00:1 Heating circuit 1, with DHW heating, auto- 00:2 Recognised automatically. matic recognition Heating circuit 2 with mixer, without DHW...

  • Page 58: Time Constant For Calculating The Adjusted Outside Temperature

    Parameters, Vitotronic 300 General, Vitotronic 300 (cont.) 06 Time constant for calculating the adjusted outside temperature Display Value Explanations 1280 minutes 06:128 Time constant for calculating the adjusted outside temperature 21.3 h ... Minutes 06:1 to Subject to the set value, the flow temperature is adjus-...

  • Page 59: Fault Message Module 2

    Parameters, Vitotronic 300 General, Vitotronic 300 (cont.) 15 Fault message module 2 Display Value Explanations Without 15:0 With 15:1 Recognised automatically. 16 Burner control unit connection Display Value Explanations Other 16:0 Never adjust KM-BUS 16:1 CAN bus 16:2 19 Extension, heating circuit 2 and heating circuit 3...

  • Page 60: Extension Am1

    Parameters, Vitotronic 300 General, Vitotronic 300 (cont.) 30 Extension AM1 Display Value Explanations Without 30:0 With 30:1 Recognised automatically. 31 Function, output A1 at extension AM1 Display Value Explanations Displayed only if parameter "30:1" has been set. DHW circulation pump...

  • Page 61: Extension Ea1

    Parameters, Vitotronic 300 General, Vitotronic 300 (cont.) 40 Extension EA1 Display Value Explanations Without 40:0 With 40:1 Recognised automatically. 41 Function, output 157 at extension EA1 Display Value Explanations Displayed only if parameter "40:1" has been set. Central fault message...

  • Page 62: Function, Input De3 At Extension Ea1

    Parameters, Vitotronic 300 General, Vitotronic 300 (cont.) 44 Function, input DE3 at extension EA1 Display Value Explanations Displayed only if parameter "40:1" has been set. None 44:0 Operating program changeover 44:1 External demand with set flow temperature 44:2 Note parameter "0B" setting.

  • Page 63: Sensor 17B

    Parameters, Vitotronic 300 General, Vitotronic 300 (cont.) 52 Sensor 17B Display Value Explanations Not installed 52:0 Available 52:1 Recognised automatically. 53 Connection at plug 20A1 Display Value Explanations Note Factory setting, according to coding card Heating circuit pump 53:0 For direct heating circuit and "boiler and cascade" ap-...

  • Page 64: Pump

    Parameters, Vitotronic 300 General, Vitotronic 300 (cont.) 57 Run-on time, shunt pump, boiler circuit pump or distribution pump Display Value Explanations Run-on time for circulation pump on plug 5 min 57:5 None 57:0 ... min 57:1 to 57:60 62 Central control of heating circuits...

  • Page 65: Communication Lon

    Parameters, Vitotronic 300 General, Vitotronic 300 (cont.) 78 Communication LON Display Value Explanations Displayed only if parameter "76:1" has been set. Disabled 78:0 Enabled 78:1 79 LON communication module: Fault manager Display Value Explanations Displayed only if parameter "76:1" has been set.

  • Page 66: Automatic Summer/Wintertime Changeover

    Parameters, Vitotronic 300 General, Vitotronic 300 (cont.) 81 Automatic summer/wintertime changeover Display Value Explanations Without 81:0 Time must be changed manually. With 81:1 With automatic summer/wintertime changeover No application 81:2 Do not adjust With LON communication module: Control 81:3 unit receives the time...

  • Page 67: Winter Time Starts: Month

    Parameters, Vitotronic 300 General, Vitotronic 300 (cont.) 85 Winter time starts: Month Display Value Explanations Displayed only if parameter "81:1" has been set. The selected value denotes the relevant month "1" = January "12" = December October 85:10 Relevant month...

  • Page 68: Lon Communication Module: Outside Temperature

    Parameters, Vitotronic 300 General, Vitotronic 300 (cont.) 97 LON communication module: Outside temperature Display Value Explanations Displayed only if parameter "76:1" has been set. Control unit uses outside temperature sen- 97:0 sor. Control unit receives outside temperature 97:1 via LON.

  • Page 69: Boiler, Vitotronic 300

    Parameters, Vitotronic 300 Boiler, Vitotronic 300 Parameter values in bold are factory settings. 02 Burner type Display Value Explanations Single stage burner 02:0 Two-stage burner 02:1 Modulating burner 02:2 03 Boiler protection, gas/oil operation Display Value Explanations Gas operation 03:0...

  • Page 70: Maximum Boiler Water Temperature Limit

    Parameters, Vitotronic 300 Boiler, Vitotronic 300 (cont.) 06 Maximum boiler water temperature limit Display Value Explanations See chapter "Function description" Note Factory setting, according to coding card ■ Observe the temperature controller settings. ■ ... °C 06:20 to 06:127 08 Maximum burner output in kW...

  • Page 71: C Function Butterfly Valve

    Parameters, Vitotronic 300 Boiler, Vitotronic 300 (cont.) 0C Function butterfly valve Display Value Explanations Note Factory settings, according to coding card Without 0C:0 Constant return temperature control 0C:1 Time-controlled butterfly valve 0C:2 Switching butterfly valve via return temper- 0C:3 ature...

  • Page 72: Runtime Servomotor Mod. Burner

    Parameters, Vitotronic 300 Boiler, Vitotronic 300 (cont.) 15 Runtime servomotor mod. burner Display Value Explanations Note Factory settings, according to coding card ... s 15:5 to 15:199 16 Burner offset with start optimisation Display Value Explanations Burner offset with start optimisation in K (temporary...

  • Page 73: F Flue Gas Temperature Sensor

    Parameters, Vitotronic 300 Boiler, Vitotronic 300 (cont.) 1F Flue gas temperature sensor Display Value Explanations Flue gas temperature is not monitored for 1F:0 burner service display ... °C limit for service 1F:1 to 1F:250 21 Interval in burner hours until the next service...

  • Page 74: Burner Fuel Consumption (Stage 2)

    Parameters, Vitotronic 300 Boiler, Vitotronic 300 (cont.) 29 Burner fuel consumption (stage 2) Display Value Explanations 29:0 Never adjust 29:0 to 29:99 2A Burner fuel consumption (stage 2) Display Value Explanations 2A:0 Never adjust 2A:0 to 2A:199 2B Max. preheating time of butterfly valve...

  • Page 75: Cascade, Vitotronic 300

    Parameters, Vitotronic 300 Cascade, Vitotronic 300 Parameter values in bold are factory settings. 00 Number of boilers connected to the cascade Display Value Explanations 00:8 00:1 to 00:8 01 Minimum system flow temperature limit Display Value Explanations 0 °C 01:0 ...

  • Page 76: Permanent Last Boiler

    Parameters, Vitotronic 300 Cascade, Vitotronic 300 (cont.) 05 Permanent last boiler Display Value Explanations 05:0 No permanent last boiler boiler ... 05:1 to Permanent last lead boiler is boiler 1, 2, 3... or 8 05:8 06 Type of control Display...

  • Page 77: A Cylinder Priority Control

    Parameters, Vitotronic 300 Cascade, Vitotronic 300 (cont.) 0A Cylinder priority control Display Value Explanations Distribution pump running 0A:0 Distribution pump is stopped 0A:1 0B Start integral threshold Display Value Explanations A boiler or burner stage will start if this value is excee- ded.

  • Page 78: Eco Threshold Boiler 1

    Parameters, Vitotronic 300 Cascade, Vitotronic 300 (cont.) 20 ECO threshold boiler 1 Display Value Explanations If the outside temperature exceeds the temperature threshold set here, the boiler is shut down. No ECO threshold 20:31 Temperature threshold for boiler ECO function is inac- tive.

  • Page 79: Eco Threshold Boiler 6

    Parameters, Vitotronic 300 Cascade, Vitotronic 300 (cont.) 25 ECO threshold boiler 6 Display Value Explanations If the outside temperature exceeds the temperature threshold set here, the boiler is shut down. No ECO threshold 25:31 Temperature threshold for boiler ECO function is inac- tive.

  • Page 80: Selection Of Set Dhw Temperature

    Parameters, Vitotronic 300 DHW, Vitotronic 300 (cont.) 01 Selection of set DHW temperature Display Value Explanations Note Observe the maximum permissible DHW temperature. 10 °C .. 60 °C 01:0 Set DHW temperature adjustable from 10 to 60 °C 10 °C .. 95 °C 01:1 Set DHW temperature adjustable from 10 to 95 °C...

  • Page 81: Circulation Pump For Cylinder Heating

    Parameters, Vitotronic 300 DHW, Vitotronic 300 (cont.) 07 Circulation pump for cylinder heating Display Value Explanations The circulation pump for tank heating starts 07:0 Do not adjust depending on the boiler water temperature The circulation pump for tank heating starts...

  • Page 82: C For Solar Dhw Heating: Dhw Temperature Target

    Parameters, Vitotronic 300 DHW, Vitotronic 300 (cont.) 0C For solar DHW heating: DHW temperature target Display Value Explanations Reheating is suppressed above the selected set tem- perature (DHW heating by the boiler only if solar en- ergy is insufficient). Note parameter "01" setting.

  • Page 83: Dhw Circulation Pump For Dhw Heating

    Parameters, Vitotronic 300 DHW, Vitotronic 300 (cont.) 13 DHW circulation pump for DHW heating Display Value Explanations According to time program 13:0 DHW circulation pump: ON according to time pro- gram 13:1 OFF during DHW heating to set value 1...

  • Page 84: Solar, Vitotronic 300

    Parameters, Vitotronic 300 Solar, Vitotronic 300 The "Solar" group is only displayed if a solar control module, type SM1, is connected. Parameter values in bold are factory settings. 00 Start temperature differential, solar circuit pump Display Value Explanations 00:8 ... K...

  • Page 85: Max. Speed, Solar Circuit Pump

    None 0A:0 Stagnation time reduction not active 0A:5 ... K 0A:1 to 0A:40 0B Frost protection function for solar circuit Display Value Explanations 0B:0 0B:1 Not required in conjunction with Viessmann heat transfer medium...

  • Page 86: C Delta T Monitoring

    Unintentional flow rate in the solar circuit (e.g. at night) is captured. 0E Calculation of solar yield Display Value Explanations 0E:0 Calculation of solar yield with Viessmann 0E:1 heat transfer medium Calculation of solar yield with water as heat 0E:2 Do not adjust transfer medium 0F Flow rate, solar circuit at max.

  • Page 87: Minimum Collector Temperature

    Parameters, Vitotronic 300 Solar, Vitotronic 300 (cont.) 12 Minimum collector temperature Display Value Explanations None 12:0 Minimum temperature limit disabled 10 °C 12:10 Minimum start temperature for solar circuit pump 10 °C ... °C 12:1 to 12:90 20 Extended control function...

  • Page 88: Start Temperature For Thermostat Function

    Parameters, Vitotronic 300 Solar, Vitotronic 300 (cont.) 24 Start temperature for thermostat function Display Value Explanations Parameter "20:5" or "20:6" must be set. 40 °C 24:40 ... °C 24:0 to 24:100 25 Stop temperature for thermostat function Display Value Explanations Parameter "20:5"...

  • Page 89: Heating Circuit 1, Heating Circuit 2, Heating Circuit 3, Vitotronic 300

    Parameters, Vitotronic 300 Heating circuit 1, heating circuit 2, heating circuit 3, Vitotronic 300 Parameter values in bold are factory settings. 00 Remote control recognition Display Value Explanations Without 00:0 No remote control connected With Vitotrol 200-A or Vitotrol 200-RF...

  • Page 90: Temperature Limits, Frost Protection Function

    Parameters, Vitotronic 300 Heating circuit 1, heating circuit 2, heating… (cont.) 03 Temperature limits, frost protection function Display Value Explanations 2 °C 03:2 Outside temperature below 1 °C: Heating circuit pump Outside temperature above 3 °C: Heating circuit pump OFF Please note If a value below 1 °C is selected, pipes outside...

  • Page 91: Heating Limit: Economy Function: Outside Temperature

    Parameters, Vitotronic 300 Heating circuit 1, heating circuit 2, heating… (cont.) 05 Heating limit: Economy function: Outside temperature Display Value Explanations See service instructions 05:5 Economy function, outside temperature: Heating cir- cuit pump OFF when the outside temperature (OT) is...

  • Page 92: Pump Idle Time

    Parameters, Vitotronic 300 Heating circuit 1, heating circuit 2, heating… (cont.) 08 Pump idle time Display Value Explanations With calculated pump idle time 08:7 Heating circuit pump OFF in case of set value modifi- cation by changing the operating mode to reduced op-...

  • Page 93: E Economy Function: Room Temperature

    Parameters, Vitotronic 300 Heating circuit 1, heating circuit 2, heating… (cont.) 0E Economy function: Room temperature Display Value Explanations Without 0E:0 With remote control: No room temperature-dependent economy function With economy function: Heating circuit pump Heating circuit pump ON See service instructions...

  • Page 94: Learning Start Optimisation

    Parameters, Vitotronic 300 Heating circuit 1, heating circuit 2, heating… (cont.) 12 Learning start optimisation Display Value Explanations Without 12:0 With remote control and for the heating circuit, opera- tion with room temperature hook-up must be program- med: Without learning start optimisation...

  • Page 95: System Dynamics Mixer

    Parameters, Vitotronic 300 Heating circuit 1, heating circuit 2, heating… (cont.) 17 System dynamics mixer Display Value Explanations For heating circuits with mixer only Controller responds too quickly (cycles between ■ OPEN and CLOSE): Select a lower value. Controller responds too slowly (temperature is not ■...

  • Page 96: Extension Ea1: Operating Program Changeover

    Parameters, Vitotronic 300 Heating circuit 1, heating circuit 2, heating… (cont.) 20 Extension EA1: Operating program changeover Display Value Explanations Displayed only if parameter "40:1" has been set. No operating program changeover 20:0 Operating program changeover via input 20:1 Operating program changeover via input...

  • Page 97: Time Limit For Comfort Mode

    Parameters, Vitotronic 300 Heating circuit 1, heating circuit 2, heating… (cont.) Diagram 3 23:3 Temperature time profile 3 (to ÖNORM) ϑ/°C Diagram 4 23:4 Temperature time profile 4 ϑ/°C Diagram 5 23:5 Temperature time profile 5 ϑ/°C Diagram 6 23:6 Temperature time profile 6 ϑ/°C...

  • Page 98: Perature

    Parameters, Vitotronic 300 Heating circuit 1, heating circuit 2, heating… (cont.) 25 Outside temperature limit for cancelling reduced set room temperature Display Value Explanations See chapter "Function description" Observe setting of parameter "03" in the "Heating cir- cuit..." group. 5 °C –...

  • Page 99: System Scheme

    01 Single and multi boiler systems Display Value Explanations Single boiler system 01:1 Multi boiler system with Viessmann cas- 01:2 Value set automatically where "Boiler in the Cascade" cade or LON cascade application selected. Never adjust Multi boiler system with external cascade...

  • Page 100: Burner Control Unit Connection

    Parameters, Vitotronic 100 General, Vitotronic 100 (cont.) 16 Burner control unit connection Display Value Explanations Other 16:0 Never adjust KM-BUS 16:1 CAN bus 16:2 1A Solar control unit Display Value Explanations Without 1A:0 Never adjust 1B Pump module PM1 Display Value Explanations Without...

  • Page 101: Function, Output A2 At Extension Am1

    Parameters, Vitotronic 100 General, Vitotronic 100 (cont.) 32 Function, output A2 at extension AM1 Display Value Explanations Displayed only if parameter "30:1" has been set. DHW circulation pump 32:0 Do not adjust Heating circuit pump, heating circuit without 32:1 Do not adjust mixer A1 (heating circuit 1) Circulation pump for cylinder heating 32:2...

  • Page 102: Connection At Plug 20A1

    Parameters, Vitotronic 100 General, Vitotronic 100 (cont.) 53 Connection at plug 20A1 Display Value Explanations Note Factory settings, according to coding card Heating circuit pump 53:0 Do not adjust Primary cylinder loading pump for heat ex- 53:1 Do not adjust changer set Therm-Control 53:2...

  • Page 103: Pump

    Parameters, Vitotronic 100 General, Vitotronic 100 (cont.) 57 Run-on time, shunt pump, boiler circuit pump or distribution pump Display Value Explanations Run-on time for circulation pump on plug Note Connection to distribution pump not possible 5 min 57:5 None 57:0 ...

  • Page 104: Lon Communication Module: Fault Manager

    Parameters, Vitotronic 100 General, Vitotronic 100 (cont.) 79 LON communication module: Fault manager Display Value Explanations Displayed only if parameter "76:1" has been set. Note Only one control unit may be programmed as fault manager. Control unit is not fault manager 79:0 Control unit is fault manager 79:1...

  • Page 105: Viessmann System Number

    Parameters, Vitotronic 100 General, Vitotronic 100 (cont.) 98 Viessmann system number Display Value Explanations Displayed only if parameter "76:1" has been set. Note Within one LON, the system number must always ■ be the same. In conjunction with monitoring of several systems ■...

  • Page 106: Switching Hysteresis Burner

    07 Consecutive boiler number in multi boiler systems Display Value Explanations Value = boiler number Note The boiler with the Vitotronic 300 is always boiler number "1". For boilers with Vitotronic 100, set values "2" to "8" only. 07:1 07:1 to 07:8...

  • Page 107: Maximum Burner Output In Kw

    Parameters, Vitotronic 100 Boiler, Vitotronic 100 (cont.) 08 Maximum burner output in kW Display Value Explanations Note Factory settings, according to coding card ≙ ... kW 08:0 to 1 step 1 kW 08:199 09 Maximum burner output in 100 kW Display Value Explanations...

  • Page 108: D Function Therm Control

    Parameters, Vitotronic 100 Boiler, Vitotronic 100 (cont.) 0D Function therm control Display Value Explanations Note Factory settings, according to coding card Without 0D:0 Temperature sensor influences the heating 0D:1 circuit mixers. Temperature sensor influences the butterfly 0D:2 Do not adjust for single boiler systems. valve.

  • Page 109: Burner Offset With Start Optimisation

    Parameters, Vitotronic 100 Boiler, Vitotronic 100 (cont.) 16 Burner offset with start optimisation Display Value Explanations Burner offset with start optimisation in K (temporary reduction of the set boiler water temperature after burner start) Note Factory settings, according to coding card ...

  • Page 110: Interval In Burner Hours Until The Next Service

    Parameters, Vitotronic 100 Boiler, Vitotronic 100 (cont.) 21 Interval in burner hours until the next service Display Value Explanations Not active 21:0 ... h 21:1 to Interval adjustable from 100 to 10,000 h. ≙ 21:100 1 step 100 h 23 Interval until the next service Display Value Explanations...

  • Page 111: A Burner Fuel Consumption (Stage 2)

    Parameters, Vitotronic 100 Boiler, Vitotronic 100 (cont.) 2A Burner fuel consumption (stage 2) Display Value Explanations 2A:0 Never adjust 2A:0 to 2A:199 2B Max. preheating time of butterfly valve Display Value Explanations When the boiler is enabled and before control begins, the butterfly valve is opened for the selected preheat- ing time.
  • Page 112 Diagnosis and service scans Calling up the service menu Tap the following buttons: 3. Enter the password "viservice". 4. Select required menu. 2. "Service" Service Menu Vitotronic 300 Vitotronic 100 Diagnosis General Heating circuit 1/2/3 — — Solar energy —...

  • Page 113: Change Passwords

    3. Enter the password "viservice". Resetting all passwords to their factory settings Tap the following buttons: 5. "Change passwords" 1. Request the master password from the Viessmann 6. "Reset all passwords" Group Technical Service. 7. Enter master password. 8. Confirm with 3.

  • Page 114: Brief Scan

    Diagnosis and service scans Diagnosis (cont.) 3. Enter the password "viservice". 6. Select required value or "All data". 4. "Diagnosis" 7. Confirm with 5. "Reset data" Brief scan In the brief scan, you can check software versions and 4. "Diagnosis" connected components, for example.

  • Page 115: Lon Service Pin

    Diagnosis and service scans Diagnosis (cont.) Software ver- Software ver- sion sion Extension for Extension for heating cir- heating cir- cuits 2 and 3 cuits 2 and 3 with mixer with mixer Software ver- sion, PM1 pump module LON service PIN The control unit sends a message to check the func- 3.

  • Page 116: Deactivating The Wifi Connection

    Diagnosis and service scans Enabling the service interface for Vitosoft… (cont.) 6. Confirm with Connection is established. Explanation of displays: Connection active No connection Deactivating the WiFi connection WiFi is automatically deactivated: ■ If no data transfer takes place for 30 minutes follow- ing connection to a WiFi enabled device.

  • Page 117: Acknowledging The Fault Display

    Troubleshooting Fault indicator symbol and "Fault" appear on the display if Explanation of fault messages: See chapter "Fault ■ a fault has occurred. messages". ■ If a message facility is connected, this is switched Acknowledging the fault display ■ Any connected message facility is switched off. flashes in the navigation area.

  • Page 118: Lead Break, Outside Temperature Sensor

    Troubleshooting Fault messages (cont.) 18 Lead break, outside temperature sensor Regulates as if the outside temperature were 0 °C. Cause Measure Lead break, outside temperature sensor Check outside temperature sensor: See chapter "Check temperature sensors" 19 Wireless outside temperature sensor Regulates as if the outside temperature were 0 °C.

  • Page 119: A Lan Hardware Error

    Troubleshooting Fault messages (cont.) Cause Measure Lead break, boiler water temperature sensor Check the boiler water temperature sensor: See chap- ter "Checking temperature sensors" 3A LAN hardware error Control mode Cause Measure Network module error Check the network module and replace if necessary. 3B LAN system error Control mode Cause...

  • Page 120: Short Circuit, Cylinder Temperature Sensor 1

    Troubleshooting Fault messages (cont.) 50 Short circuit, cylinder temperature sensor 1 Cylinder loading pump on: ■ DHW temperature target = set flow temperature Priority control is cancelled. ■ With cylinder loading system: Cylinder heating is started and stopped via cylinder temperature sensor 2.

  • Page 121: Short Circuit, Temperature Sensor 17A

    Troubleshooting Fault messages (cont.) Cause Measure Lead break, buffer temperature sensor or low loss Check the sensor at connection : See chapter ■ header temperature sensor "Checking temperature sensors" Without buffer temperature sensor ■ Temperature sensor, low loss header: Set parameter "20:0" in the "General" group. 60 Short circuit, temperature sensor 17A Boiler with maximum temperature, no output reduction, mixing valve for return temperature control open...

  • Page 122: Short Circuit, Sensor 7, Solar Control Module, Type Sm1

    Troubleshooting Fault messages (cont.) 90 Short circuit, sensor 7, solar control module, type SM1 Control mode Cause Measure Short circuit, temperature sensor Check temperature sensor at the solar control unit connection at solar control module, type SM1 (see separate installation and service instructions). 91 Short circuit, sensor 10, solar control module, type SM1 Control mode Cause...

  • Page 123: Lead Break, Sensor 10, Solar Control Module, Type Sm1

    Troubleshooting Fault messages (cont.) 99 Lead break, sensor 10, solar control module, type SM1 Control mode Cause Measure Lead break, temperature sensor Check temperature sensor at the solar control unit aÖ aÖ connection at solar control module, type SM1 (see separate installation and service instructions). Check parameter "20"...

  • Page 124: A0 Fault Message Module 2: Safety Equipment 1

    Troubleshooting Fault messages (cont.) A0 Fault message module 2: Safety equipment 1 Boiler cools down. Cause Measure Fault, safety equipment at "X7" of plug-in adaptor 2 for Check safety equipment, and reset if required. external safety equipment A1 Fault message module 2: Safety equipment 2 Boiler cools down.

  • Page 125: Ac Configuration Fault, Return Temperature Control

    Troubleshooting Fault messages (cont.) Cause Measure Configuration fault, cylinder loading system: Parameter Insert plug and check parameters. "00:3" in the "DHW" group is set, but plug is not plugged in and/or parameter "53:1" in the "General" group and "55:2" in the "General" group are not set. AC Configuration fault, return temperature control Control mode Cause...

  • Page 126: B7 Coding Card

    Fault messages (cont.) Cause Measure Invalid application Repeat commissioning. ■ Set application: ■ Vitotronic 300: "Boiler and Cascade" Vitotronic 100: "Boiler in the Cascade" B7 Coding card Boiler is regulated by the temperature controller. Cause Measure Fault, coding card Insert or replace the coding card: See chapter "Inserting the coding card"...

  • Page 127: Be Communication Error, Remote Control, Heating Circuit 3

    Troubleshooting Fault messages (cont.) Cause Measure Communication error, Vitotrol remote control, heating Check connections, lead (see separate installation and circuit 2 service instructions) and parameter "00" in the Heating circuit... group. With wireless remote control: ■ Place the remote control near the wireless base sta- tion and check connection (see separate installation and service instructions).

  • Page 128: C8 Fault Message Module 1, Input 1: Water Level Limiter

    Troubleshooting Fault messages (cont.) Cause Measure Communication fault, extension AM1 Check connections. Without AM1 extension: Set parameter "30:0" in the "General" group. C8 Fault message module 1, input 1: Water level limiter Boiler cools down. Cause Measure Fault, low water indicator at "X7" of plug-in adaptor 1 Check the system water level.

  • Page 129: Cf Communication Error, Lon Communication Module

    Troubleshooting Fault messages (cont.) CF Communication error, LON communication module Control mode ■ No communication via LON ■ Cause Measure Communication error, LON communication module of Check LON communication module and replace if re- the control unit quired. If no LON communication module is installed, set pa- rameter "76:0"...

  • Page 130: D6 Fault Message At Digital Input 1, Ea1 Extension

    Troubleshooting Fault messages (cont.) D6 Fault message at digital input 1, EA1 extension Control mode Cause Measure Input DE1 at EA1 extension reports a fault. Remedy fault at appliance concerned. D7 Fault message at digital input 2, EA1 extension Control mode Cause Measure Input DE2 at EA1 extension reports a fault.

  • Page 131: De Lead Break, Room Temperature Sensor Vitotrol, Hc 2

    Troubleshooting Fault messages (cont.) DE Lead break, room temperature sensor Vitotrol, HC 2 Control mode without room influence Cause Measure Lead break, room temperature sensor, heating circuit 2 Check room temperature sensor: See chapter "Check temperature sensors" DF Lead break, room temperature sensor Vitotrol, HC 3 Control mode without room influence Cause Measure...

  • Page 132: Outside Temperature Sensor

    Troubleshooting Checking temperature sensors (cont.) 1. Pull out corresponding plug. Viessmann NTC 10 k (blue ID label) Ω 2. Check the sensor resistance and compare it to the curve. 3. In the case of severe deviation, check sensor installation and replace the sensor if required.

  • Page 133: Checking The Fuses

    Troubleshooting Checking temperature sensors (cont.) Viessmann NTC 20 k (orange ID label) Ω Temperature in °C Fig. 41 1. Pull out plug 3. In the case of severe deviation, check sensor installation and replace the sensor if required. 2. Check the sensor resistance and compare it to the curve.

  • Page 134: Brief Description

    System function description System function description All parameters for the following functions are set on the Vitotronic 300. Boiler water temperature control Brief description ■ The boiler water temperature is regulated by starting and stopping the burner or through modulation.

  • Page 135: Cascade Control

    System function description Cascade control Brief description The common flow temperature is regulated by starting A control strategy is set for each control type: or stopping the burners or by starting/stopping individ- Condensing strategy (see page 137) ■ ual burner stages. ■...

  • Page 136: Standalone Control

    System function description Cascade control (cont.) Standalone control Boilers connected in parallel Boilers connected in series Without and with flow temperature sensor (see the Without and with flow temperature sensor (see the ■ ■ following table). following table). The cascade control specifies the set boiler water The cascade control specifies the set boiler water ■...

  • Page 137: Control Strategies

    System function description Cascade control (cont.) Control strategies Condensing strategy Benefit Optimum utilisation of the condensing effect and long burner runtimes Set parameter "07:0" in the "Cascade" group. It is the aim of the condensing strategy to operate as many boilers as pos- sible at the lowest output level.
  • Page 138 System function description Cascade control (cont.) Conventional boiler strategies Conventional boiler strategy 1 Conventional boiler strategy 2 Benefit As few boilers as possible are active. Long burner runtimes. Set parameter "07:1" in the "Cascade" Parameter "07:2" in the "Cascade" group group.

  • Page 139: Control Of The Heating Circuits

    System function description Cascade control (cont.) Conventional boiler strategy 2 (parameter "07:2" in the "Cascade" group) Start-up Shutdown Control of the heating circuits Brief description ■ The control unit comprises control circuits for heating ■ The flow temperature of the heating circuit without circuit 1 without mixer and heating circuits 2 and 3, mixer corresponds to the common system flow tem- each with mixer.
  • Page 140 System function description Control of the heating circuits (cont.) Room temperature The pump idle time selected in parameter "08" in the ■ "Heating circuit..." group is reached. Room temperature in conjunction with a remote Conditions: control and room temperature hook-up (parameter –...
  • Page 141 System function description Control of the heating circuits (cont.) Frost protection Raising the reduced room temperature The flow temperature is maintained in accordance with During operation at reduced room temperature, the the heating curve for the reduced set room tempera- reduced set room temperature can be automatically ture, but at min.

  • Page 142: Control Sequence

    System function description Control of the heating circuits (cont.) Example using the settings in the delivered condition Time Fig. 44 Start of operation at standard room temperature Set boiler water or flow temperature in accordance Set boiler water or flow temperature in accordance with parameter "FA": with the selected heating curve 50 °C + 20 % = 60 °C...

  • Page 143: Functions

    System function description DHW heating control (cylinder temperature… (cont.) Functions Time program Frost protection An automatic program or an individual time program The DHW cylinder will be heated to 20 °C if the DHW may be selected for DHW heating and the DHW circu- temperature falls below 5 °C.

  • Page 144: Control Sequence

    System function description DHW heating control (cylinder temperature… (cont.) Control sequence The following parameters in the "DHW" group influ- Cylinder temperature sensor 2: ence the controlled sequence. Cylinder heating will start early if a lot of hot water is drawn off. Cylinder heating will terminate early if no hot Tank heating (parameter "00:0") water is drawn off.

  • Page 145: Plug-In Adaptor For External Safety Equipment (Accessories)

    System function description Plug-in adaptor for external safety equipment (accessories) Connecting one plug-in adaptor The wiring centre is automatically recognised by the Minimum pressure limiter ■ control unit as a KM-BUS subscriber. Additional high limit safety cut-out ■ ■ External controlled burner shutdown The following external safety equipment can be con- ■...

  • Page 146: Ea1 Extension (Accessories)

    System function description EA1 extension (accessories) Fig. 46 Digital input 1 Power supply fÖ Digital input 2 Power supply for additional accessories fÖ Digital input 3 Central fault message/feed pump/DHW circula- Fuse tion pump (potential-free) 10V 0 to 10 V input KM-BUS –...

  • Page 147: Analogue Input 0 – 10 V

    System function description EA1 extension (accessories) (cont.) Analogue input 0 10 V – The 0 to 10 V hook-up provides an additional set flow Ensure galvanic separation between the earth conduc- temperature: tor and the negative pole of the on-site power source. 1 V is seen as "no set flow temperature".

  • Page 148: Functions

    System function description AM1 extension (accessories) (cont.) Functions One of the following circulation pumps can be connec- ted to each of the connections A1 and A2: ■ Heating circuit pump for heating circuit without mixer ■ Circulation pump for cylinder heating ■...

  • Page 149: Boiler Function Description

    The boiler water temperature is regulated by starting and stopping the burner or through modulation. ■ The set boiler water temperature is specified by the Vitotronic 300. For low temperature boilers, a minimum boiler water ■ temperature is specified via the coding card. This is maintained to protect the boiler.

  • Page 150: Vitotronic 300

    Connection and wiring diagrams Vitotronic 300 Overview Fig. 48 A1 PCB extension, heating circuits 2 and 3 with mixer A6 LON communication module A2 PCB, low voltage A7 Safety part with temperature controller and high A3 PCB 230 V~ limit safety cut-out...
  • Page 151 Connection and wiring diagrams Vitotronic 300 (cont.) PCB 230 V~ Fig. 49...

  • Page 152: Pcb, Low Voltage

    Connection and wiring diagrams Vitotronic 300 (cont.) Heating circuit pump for heating circuit 1 Power supply, 230 V/50 Hz sÖ fÖ without mixer Boiler burner stage 1 Central fault message facility gÖ Primary cylinder loading pump for cylinder Motorised butterfly valve, boiler...

  • Page 153: Pcb, Extension For Heating Circuits 2 And 3 With Mixer

    Connection and wiring diagrams Vitotronic 300 (cont.) Outside temperature sensor CAN bus subscriber Boiler water temperature sensor .2 External blocking boiler § Cylinder temperature sensor .3 Start the boiler externally as the last one in the boiler sequence Top cylinder temperature sensor in a cyl-...

  • Page 154: Vitotronic 100

    Connection and wiring diagrams Vitotronic 100 Overview Fig. 52 A2 PCB, low voltage A7 Safety part with temperature controller and high A3 PCB 230 V~ limit safety cut-out A4 Network module A8 Programming unit A5 Coding card Electrical interfaces A6 LON communication module...
  • Page 155 Connection and wiring diagrams Vitotronic 100 (cont.) PCB 230 V~ Fig. 53...

  • Page 156: Pcb, Low Voltage

    Connection and wiring diagrams Vitotronic 100 (cont.) Circulation pump for boiler flue gas/water Boiler burner stage 2 sÖ lÖ heat exchanger Boiler modulating burner Switching output for boiler volume flow External boiler safety equipment aBÖ reduction (Therm-Control) Shunt pump Provisional boiler burner operation Boiler safety chain (potential-free) Boiler circuit pump Mains connection for accessories...
  • Page 157 Connection and wiring diagrams Vitotronic 100 (cont.) .2 External changeover, stepped/modulating Data exchange port boiler burner Electrical interfaces...

  • Page 158: Specification For Vitotronic 300 And Vitotronic 100

    Specification Specification for Vitotronic 300 and Vitotronic 100 Rated voltage 230 V~ Rated frequency 50 Hz Rated current 12 A~ Power consumption 16 W Protection class IP rating IP 20 D to EN 60529; ensure through design/installation Function type Type 1B to EN 60730-1...

  • Page 159: Declaration Of Conformity

    Certificates Declaration of conformity We, Viessmann Werke GmbH & Co. KG, D-35107 Allendorf, 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. Using the serial number, the full Declaration of Con- formity can be found on the following website: www.viessmann.co.uk/eu-conformity...
  • Page 160 Fault messages............117 Connection and wiring diagram – Without a fault display........... 131 – Vitotronic 100............154 Flow temperature sensor......... 131 – Vitotronic 300............150 Flue gas temperature sensor........132 Control Frost protection............141 – Boiler water temperature.......134, 149 Frost protection function...........143 Controlled burner shutdown, external......
  • Page 161 Relay test..............53 LON terminator............42 Repair...............131 Low water indicator..........37, 145 Required parameters – Vitotronic 100............48 – Vitotronic 300............48 Mains filter unit............44 Return temperature sensor........131 Mains isolator............. 42 Room temperature........... 140 MatriX burner............. 38 Room temperature sensor........131 Maximum pressure limiter........
  • Page 162 – Enabling..............115 Three-phase burner........... 40 – Information............115 Time program WiFi information............115 – Central heating............139 Wiring diagram – DHW heating............143 – Vitotronic 100............154 Troubleshooting............117 – Vitotronic 300............150 Two-stage burner, adjust control unit......46 Underfloor heating circuit........... 30...
  • Page 164 Viessmann Werke GmbH & Co. KG Viessmann Limited D-35107 Allendorf Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB Fax: +49 6452 70-2780 Telephone: +44 1952 675000 www.viessmann.com Fax: +44 1952 675040 E-mail: info-uk@viessmann.com...

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