Viessmann VITOTRONIC 100 GC1B Installation And Service Instructions Manual
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Viessmann VITOTRONIC 100 GC1B Installation And Service Instructions Manual

Digital boiler control unit for use with boiler models vd2a, vd2 and ct3
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Installation and Service
Instructions
for use by heating contractors
Vitotronic 100
Type GC1B
Digital boiler control unit
For use with Boiler models VD2A, VD2 and CT3
VITOTRONIC
Certified as a component
part for Viessmann boilers
5693 970 - 05
02/2015
100
r
Product may not be exactly as shown
IMPORTANT
Read and save these instructions
for future reference
.
Please file in Service Binder

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Summary of Contents for Viessmann VITOTRONIC 100 GC1B

  • Page 1 For use with Boiler models VD2A, VD2 and CT3 VITOTRONIC Product may not be exactly as shown IMPORTANT Read and save these instructions Certified as a component for future reference part for Viessmann boilers Please file in Service Binder 5693 970 - 05 02/2015...

  • Page 2: Vitotronic 100, Gc1B Installation And Service

    Follow the by service personnel. Viessmann maintenance schedule of the boiler contained  For a listing of applicable literature, in this manual. please see section entitled “For your safety”.

  • Page 3: Table Of Contents

    Table of Contents Vitotronic 100, GC1B Installation and Service Page General Safety, Installation and Warranty Requirements....2 Product Information............2 Safety For your Safety............6 Installation Examples Overview of System Examples........7 Designations in the System Schemes......8 System Example 1............9 Single Boiler System: Boiler with Therm-Control............9 Equipment Required..........10 Electrical Installation Scheme........11...
  • Page 4 Table of Contents Vitotronic 100, GC1B Installation and Service Page Installation Example (continued) System Example 8............37 Multi Boiler System: Vitocrossal and Low Temperature Boiler with Shunt Pump for Raising the Return Temperature......37 Equipment Required..........38 Electrical Installation Scheme........39 Required Code............40 System Example 9............41 Multi Boiler System: Vitocrossal and Low Temperature Boiler with 3-way Mixing Valve and Boiler Circuit Pump.....41...
  • Page 5 Table of Contents Vitotronic 100, GC1B Installation and Service Page Service Scans Calling up Service Level..........83 Leaving the Service Level...........83 Scanning Operating Data...........83 Brief Scan..............83 Scanning and Resetting Service Display.......85 Troubleshooting Fault Display............85 Function Description Boiler Water Temperature Control ......91 DHW Tank Control ..........96 Code 1 Calling Up Coding Level 1..........98...

  • Page 6: Safety

    Safety Vitotronic 100, GC1B Installation and Service For your Safety If you smell gas CAUTION H Don’t smoke! Don’t use naked flames or cause sparks (e.g. by switching lights or electrical appliances on Follow these safety instructions closely to avoid the risk and off) of injury and damage to property.

  • Page 7: Installation Examples

    Installation Examples Vitotronic 100, GC1B Installation and Service Overview of System Examples Boiler Characteristics Page Single Boiler Systems Vitorond (VD2A) Therm-Control Vitorond (VD2) Shunt pump and 3-way mixing valve for raising the return temperature Vitocrossal (CT3) Several heating circuits and one low temperature heating circuit Multi Boiler Systems Vitorond (VD2A) Therm-Control...

  • Page 8: Designations In The System Schemes

    Installation Examples Vitotronic 100, GC1B Installation and Service Designations in the System Schemes...

  • Page 9: System Example 1

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 1 Single Boiler System: Boiler with Therm-Control...

  • Page 10: Equipment Required

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 1 (continued) Equipment Required Pos. Designation Boiler Vitotronic 100, type GC1B Boiler water temperature sensor KTS Therm-Control temperature sensor ON/OFF switch DHW tank DHW tank temperature sensor STS DHW pump Heating Circuits Boiler Accessories Connection to safety equipment aBÖ...

  • Page 11: Electrical Installation Scheme

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 1 (continued) Electrical Installation Scheme...

  • Page 12: Wiring Diagram

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 1 (continued) Wiring Diagram Closing of system mixing valves installed downstream of the boiler via the Therm-Control temperature sensor. These 3rd party heating circuit control units are not connected to the boiler control units. Required Code Category Function...

  • Page 13: System Example 2

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 2 Single Boiler System: Boiler with Shunt Pump and 3-way Mixing Valve for Return Temperature Raising...

  • Page 14: Equipment Required

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 2 (continued) Equipment Required Pos. Designation Boiler Vitotronic 100, type GC1B Boiler water temperature sensor KTS Shunt pump (on site) 3-way mixing valve Temperature sensor T2 Temperature sensor T1 ON/OFF switch DHW tank DHW tank temperature sensor STS DHW pump...

  • Page 15: Electrical Installation Scheme

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 2 (continued) Electrical Installation Scheme...

  • Page 16: Required Code

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 2 (continued) Required Code Category Function 0C:1 2 “Boiler” Constant return temperature control.

  • Page 17: System Example 3

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 3 Single Boiler System with Vitocrossal...

  • Page 18: Equipment Required

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 3 (continued) Equipment Required Pos. Designation Boiler Vitotronic 100, type GC1B Boiler water temperature sensor KTS Neutralizing system ON/OFF switch DHW tank DHW tank temperature sensor STS Circulation pump for DHW tank heating UPSB Heating Circuits Boiler Accessories Connection to safety equipment aBÖ...

  • Page 19: Electrical Installation Scheme

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 3 (continued) Electrical Installation Scheme...

  • Page 20: Required Code

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 3 (continued) Required Code Category Function 0C:0 2 “Boiler” Without Therm-Control temperature sensor.

  • Page 21: System Example 4

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 4 Multi Boiler System: Boiler with Therm-Control...

  • Page 22: Equipment Required

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 4 (continued) Equipment Required Pos. Designation Boiler Vitotronic 100, type GC1B Boiler water temperature sensor KTS Therm-Control temperature sensor Motorized isolation valve Supply temperature sensor (connection to higher third party control unit) ON/OFF switch Boiler II Vitotronic 100, type GC1B...

  • Page 23: Electrical Installation Scheme

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 4 (continued) Equipment Required Pos. Designation System Accessories Central fault message system S Extension EA1 1 analog input (0 – 10VDC): Boiler water setpoint temperature via 3rd party control 3 digital inputs: External blocking External blocking with fault message Fault message input...

  • Page 24: Required Code

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 4 (continued) Required Code Category Function 01:2 2 “Boiler” Multi boiler system with external cascade control via LON. 01:3 2 “Boiler” Multi boiler system with external cascade control via 0 –10VDC input or switching relay.

  • Page 25: System Example 5

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 5 Multi Boiler System: Any Boiler with Shunt Pump for Return Temperature Raising...

  • Page 26: Equipment Required

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 5 (continued) Equipment Required Pos. Designation Boiler I Vitotronic 100, type GC1B Boiler water temperature sensor KTS Supply temperature sensor (connection to higher third party control unit) Motorized isolation valve Temperature sensor T2 Shunt pump (on site) Temperature sensor T1...

  • Page 27: Electrical Installation Scheme

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 5 (continued) Equipment Required Pos. Designation System Accessories Central fault message system Extension EA1 1 analog input (0 – 10VDC): Boiler water setpoint temperature via 3rd party control 3 digital inputs: External blocking External blocking with fault message Fault message input...

  • Page 28: Required Code

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 5 (continued) Required Code Category Function 01:2 2 2 “Boiler” Multi boiler system with external cascade control via LON. 01:2 2 2 “Boiler” Multi boiler system with external cascade control via 0 – 10VDC input or switching relay.

  • Page 29: System Example 6

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 6 Multi Boiler System: Any Boiler with Boiler Circuit Pump and 3-way Mixing Valve for Return Temperature Raising...

  • Page 30: Equipment Required

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 6 Technical Data (continued) Equipment Required Pos. Designation Boiler I Vitotronic 100, type GC1B Boiler water temperature sensor KTS Supply temperature sensor (connection to higher third party control unit) 3-way mixing valve Temperature sensor T1 Boiler circuit pump (on site) ON/OFF switch...

  • Page 31: Electrical Installation Scheme

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 6 Technical Data (continued) Equipment Required Pos. Designation System Accessories Central fault message system Extension EA1 1 analog input (0 – 10VDC): Boiler water setpoint temperature via 3rd party control 3 digital inputs: External blocking External blocking with fault message...

  • Page 32: Required Code

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 6 (continued) Required Code Category Function 01:2 2 “Boiler” Multi boiler system with external cascade control via LON. 01:3 2 “Boiler” Multi boiler system with external cascade control via 0 –10VDC input or switching relay. 0C:1 2 “Boiler”...

  • Page 33: System Example 7

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 7 Multi Boiler System: Vitocrossal or Vitorond with Therm-Control (with a low temperature heating circuit)

  • Page 34: Equipment Required

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 7 (continued) Equipment Required Pos. Designation Boiler I Vitotronic 100, type GC1B Boiler water temperature sensor KTS Supply temperature sensor (connection to higher third party control unit) Neutralizing system ON/OFF switch Boiler II Vitotronic 100, type GC1B Boiler water temperature sensor KTS...

  • Page 35: Electrical Installation Scheme

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 7 (continued) Equipment Required Pos. Designation System Accessories Central fault message system Extension EA1 1 analog input (0 – 10VDC): Boiler water setpoint temperature via 3rd party control 3 digital inputs: External blocking External blocking with fault message Fault message input...

  • Page 36: Required Code

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 7 (continued) Required Code Category Function 01:2 2 “Boiler” Multi boiler system with external cascade control via LON. 01:3 2 “Boiler” Multi boiler system with external cascade control via 0 – 10VDC input or switching relay.

  • Page 37: System Example 8

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 8 Multi Boiler System: Vitocrossal and Low Temperature Boiler with Shunt Pump for Raising the Return Temperature (with a low temperature heating circuit)

  • Page 38: Equipment Required

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 8 (continued) Equipment Required Pos. Designation Boiler I Vitotronic 100, type GC1B Boiler water temperature sensor KTS Supply temperature sensor (connection to higher third party control unit) Neutralizing system ON/OFF switch Boiler II Vitotronic 100, type GC1B Boiler water temperature sensor KTS...

  • Page 39: Electrical Installation Scheme

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 8 (continued) Equipment Required Pos. Designation System Accessories Central fault message system Extension EA1 1 analog input (0 – 10VDC): Boiler water setpoint temperature via 3rd party control 3 digital inputs: External blocking External blocking with fault message Fault message input...

  • Page 40: Required Code

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 8 (continued) Required Code Category Function 01:2 2 “Boiler” Multi boiler system with external cascade control via LON. 01:3 2 “Boiler” Multi boiler system with external cascade control via 0 – 10VDC input or switching relay.

  • Page 41: System Example 9

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 9 Multi Boiler System: Vitocrossal and Low Temperature Boiler with 3-way Mixing Valve and Boiler Circuit Pump (with a low temperature heating circuit)

  • Page 42: Equipment Required

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 9 (continued) Equipment Required Pos. Designation Boiler I Vitotronic 100, type GC1B Boiler water temperature sensor KTS Supply temperature sensor (connection to higher third party control unit) Neutralizing system ON/OFF switch Boiler II Vitotronic 100, type GC1B Boiler water temperature sensor KTS...

  • Page 43: Electrical Installation Scheme

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 9 (continued) Equipment Required Pos. Designation System Accessories Central fault message system Extension EA1 1 analog input (0 – 10VDC): Boiler water setpoint temperature via 3rd party control 3 digital inputs: External blocking External blocking with fault message Fault message input...

  • Page 44: Required Code

    Installation Examples Vitotronic 100, GC1B Installation and Service System Example 9 (continued) Required Code Category Function 01:2 2 “Boiler” Multi boiler system with external cascade control via LON. 01:3 2 “Boiler” Multi boiler system with external cascade control via 0–10VDC input or switching relay.

  • Page 45: Control Unit Installation

    Control Unit Installation Vitotronic 100, GC1B Installation and Service Mounting the Control Unit 1. Fasten the metal back plate to the boiler jacket with four fasteners. Refer to the installation instructions of the relevant boiler for mounting location. 2. Install the mid plate and junction box to the back plate.

  • Page 46: Fitting The Control Unit Front

    Control Unit Installation Vitotronic 100, GC1B Installation and Service Fitting the Control Unit Front 1. Snap on the control cover to the control housing. 2. Snap on the interface cover to the control cover. 3. Release the stay bar and lock in position. 4.

  • Page 47: Opening The Control Unit

    Control Unit Installation Vitotronic 100, GC1B Installation and Service Opening the Control Unit 1. Remove the junction box cover screws and remove the cover. 2. Remove the front housing screws. 3. Swing up the front part of the control housing. 4.

  • Page 48: Installation Sequence

    Installation Sequence Vitotronic 100, GC1B Installation and Service Overview of Electrical Connections This prevents the wires from drifting into the adjacent Note: When making connection to plugs aVD and aVH, voltage area. bundle the individual wires of the cables closely to the terminals.
  • Page 49 Installation Sequence Vitotronic 100, GC1B Installation and Service Overview of Electrical Connections (continued) Legend A Vitotronic 100 B Junction box C Burner motor power supply (refer to page 73) fÖ Vitotronic 100 GC1B power supply...

  • Page 50: Pump Connection Overview

    Installation Sequence Vitotronic 100, GC1B Installation and Service Pump Connection Overview Legend Pumps 120V A 120V pump output Available pump connections B To the Vitotronic control unit Switching contact/shunt pump sÖA1 C Junction box Boiler pump DHW Pump Rated current: 2A~ * Maximum output 6FLA shared between all 120V outputs.

  • Page 51: Inserting Cables And Applying Strain Relief

    Installation Sequence Vitotronic 100, GC1B Installation and Service Inserting Cables and Applying Strain Relief Control unit fitted to the side of the boiler Route the cables from the junction box below into the control unit. Legend A Cables with moulded strain relief B On-site cables;...

  • Page 52: Inserting The Boiler Coding Card

    Vitocrossal 300, CT3 1040 7841118 7841118 Vitorond 200, VD2, VD2A 1020 7841111 7841111 Inserting the LON Communication Module (if required) Connecting the control unit to the LON, see page 79. Legend A LON communication module (accessory) B Vitotronic 100 GC1B...

  • Page 53: Adjusting The Fixed High Limit (If Required)

    Installation Sequence Vitotronic 100, GC1B Installation and Service Adjusting the Fixed High Limit (if required) When adjusting the fixed high limit, the adjustable high limit and the electronic temperature limiter must also be adjusted (see chart below). WARNING Disconnect power to the control and burner! 1.

  • Page 54: Connecting Sensors

    Installation Sequence Vitotronic 100, GC1B Installation and Service Connecting Sensors Main PCB, low voltage § Boiler water temperature sensor %A DHW tank temperature sensor %B DHW tank temperature sensor 2 for primary store system (optional accessory, not used) ) Supply temperature sensor, low loss header (accessory) aG Flue gas temperature sensor (accessory) aJA Therm-Control temperature sensor...

  • Page 55: 120V External Connection

    Installation Sequence Vitotronic 100, GC1B Installation and Service 120V External Connection 120V pumps with an amperage draw of <2FLA Legend A DIN rail B Pump 120V pumps with an amperage draw of >2FLA Contactor specification 120VAC 1A Legend A DIN rail B Contactor/relay (field supplied) C Pump D Power supply w/disconnect and protection...

  • Page 56: Connecting Actuators

    Installation Sequence Vitotronic 100, GC1B Installation and Service Connecting Actuators Legend Legend A 24V Mixing Valve Adaptor A 120V Mixing Valve Adaptor B DIN Rail (in junction box) B DIN Rail (in junction box) C 24V Valve Actuator C 24V Valve Actuator D Valve D Valve 120V Valve Adaptor...

  • Page 57: Connecting The Central Fault Message Facility

    Installation Sequence Vitotronic 100, GC1B Installation and Service Connecting the Central Fault Message Facility Rated voltage: 120V~ Rated current: max. 2A~ Connection of Low Water Cut-off Device Legend aBH Power supply for accessories. CAUTION aBÖ Connection for external equipment. Low water cut-off (typical) The diagram shown is only a simplified conceptual drawing of a typical low water cut off (LWCO) device.

  • Page 58: Connections To Safety Equipment Abö

    Installation Sequence Vitotronic 100, GC1B Installation and Service Connections to Safety Equipment 1. Connect the external safety equipment in series. Legend A DIN rail B Low water cutoff C Other safety controls Connections to Terminal aBA External shut-off 1. Remove jumper between terminals 19 and 20. 2.

  • Page 59: External Blocking - Single Boiler System

    Installation Sequence Vitotronic 100, GC1B Installation and Service External Blocking – Single Boiler System Connection options (dry contact) at: Connection Plug aBÖ Note: ‘Live’ contacts lead to short circuits or phase failure. Extension EA1 (accessory, see page 117) The external connection must be potential-free. Extension EA1 Plug aBÖ...

  • Page 60: Vitotronic 100, Gc1B With 30% Ltp Package (Vd2 Only)

    Installation Sequence Vitotronic 100, GC1B Installation and Service Vitotronic 100, GC1B with 30% LTP Package (VD2 only) 30% LTP Package consists of: Each pump output: 120V single phase - 1 circulation pump Max. pump current: 2 FLA - 1 cast iron flange set IMPORTANT - 2 full port ball valves - 1 flow check valve...

  • Page 61: External Changeover Of Staged/Modulating Burners

    Installation Sequence Vitotronic 100, GC1B Installation and Service External Changeover of Staged/Modulating Burners Connection at Plug aVH. Note: ‘Live’ contacts lead to short circuits or phase failure. The external connection must be potential-free. Contact open: modulating mode Contact closed: two stage mode Note: When scanning the burner version, the address for modulation appears even after an external changeover.

  • Page 62: Provisional Burner Operation Abö

    Installation Sequence Vitotronic 100, GC1B Installation and Service Provisional Burner Operation Remove jumper across terminals 16 and 17 (not shown) and connect terminals 16 and 18 external control via dry contact (heat demand on close). Upon heat demand the boiler will maintain low fire until modulation is externally controlled through BMS.
  • Page 63 Installation Sequence Vitotronic 100, GC1B Installation and Service Single Boiler System – Connecting an External Control Unit (continued) External Demand Via 0 – 10VDC Input Connection at 0 – 10VDC input at extension EA1 (see page 117). 0 - 1VDC “No default set boiler water temperature”...
  • Page 64 Installation Sequence Vitotronic 100, GC1B Installation and Service Single Boiler System – Connecting an External Control Unit (continued) Legend A Control unit Low Temperature Boiler With Modulating Burner (on-site B Junction box modulation controller) C Burner control unit D Burner activation (base load) Burner Connection: E Burner modulation up Connect plug fA of Vitotronic 100 to the burner.
  • Page 65 Installation Sequence Vitotronic 100, GC1B Installation and Service Single Boiler System – Connecting an External Control Unit (continued) Legend A Control unit B Junction box C Burner control unit D Burner activation (base load) E BMS - Burner modulation control Refer to the burner Installation Instructions.

  • Page 66: Multi Boiler System - Connecting An External Control Unit

    Installation Sequence Vitotronic 100, GC1B Installation and Service Multi Boiler System – Connecting an External Control Unit Settings Codes in category 2 “Boiler”: – “02:1” for two-stage burner – “02:2” for modulating burner – “01:3” for multi boiler system with on-site cascade control (third party control unit) –...
  • Page 67 Installation Sequence Vitotronic 100, GC1B Installation and Service Multi Boiler System – Connecting an External Control Unit (continued) Make connection at plug aVH. Note: This contact must always be closed on the lead boiler. Closed Contact Open Boiler enabled and The isolation valve is held at its minimum closed after approx.
  • Page 68 Installation Sequence Vitotronic 100, GC1B Installation and Service Multi Boiler System – Connecting an External Control Unit (continued) Legend A Control unit B Junction box C Burner control unit D Burner activation (base load) E Isolation valve open F Burner Modulation up G Burner Modulation down Refer to the burner Installation Instructions.
  • Page 69 Installation Sequence Vitotronic 100, GC1B Installation and Service Multi Boiler System – Connecting an External Control Unit (continued) Legend External Burner Start – Base Load A Control unit Contact at terminals “1” and “2” of plug aVD: B Junction box Contact closed: C Burner control unit The burner is started with base load.
  • Page 70 Installation Sequence Vitotronic 100, GC1B Installation and Service Multi Boiler System – Connecting an External Control Unit (continued) Hooking Up On-site Control Devices Via LON Boiler Blocking Contact at terminals “1” and “2” of plug aVD: Contact closed: The boiler is blocked and has been removed from the boiler sequence.

  • Page 71: Burner Connection, Burner Control Wiring

    3. Connect the 7-pole plug fA and the 3-pole plug lÖ to the burner. CAUTION This is a generic connection drawing only! Follow the burner manufacturer’s connection drawings for Viessmann controls. Legend A To boiler control unit B To burner Terminal codes 1,2,3 Control circuit ”2nd stage burner or modulation...
  • Page 72 Note: Write the terminal numbers or markings on the for Viessmann controls. drawing for future reference. Legend A Vitotronic 100 control B Junction box C Burner fA Burner, 1st stage lÖ Burner, 2nd stage/modulation Refer to burner manufacturer’s instruction on detailed connections for Viessmann controls.

  • Page 73: Burner Connection, Motor Power Supply

    Installation Sequence Vitotronic 100, GC1B Installation and Service Burner Connection, Motor Power Supply CAUTION The control must be grounded. Ensure that “L”, “N” and “G” are not interchanged. 1. Ensure that the main power supply to the control contains over current protection with a maximum rating of 15A and 2 pole disconnect.
  • Page 74 For burners with 240VAC, 1PH power supply. See burner manual for correct fuse and wire gauge sizing, and specifi c connections for Viessmann controls. Disconnect power to burner and boiler control. Connect 240VAC power to the terminals 21, 22 and 23 on the DIN rail inside the connection enclosure.
  • Page 75 For burners with 3PH 208, 460 or 575V power supply. See burner manual for correct fuse and wire gauge sizing, and specific connections for Viessmann controls. 1. Disconnect power to burner and boiler control. 2. Connect 3PH power to the terminals 21, 22, 23 and 24 on the DIN rail inside the connection enclosure.

  • Page 76: Commissioning

    Return temperature control 0d:__ 2 “Boiler” Therm-Control 4C:__ 1 “General” Function at plug sÖ 4d:__ 1 “General” Function at plug sL 4E:__ 1 “General” Function at plug gS 98:__ 1 “General” Viessmann system number 9C:__ 1 “General” Monitoring LON participants...
  • Page 77 Commissioning Vitotronic 100, GC1B Installation and Service Matching the Coding Addresses to the System Version (continued) Matching the Control Unit to the Two-stage Burner Matching coding addresses according to the burner used Address Meaning Setting 03:__ Fuel Gas operation: 0 (delivered condition) Oil operation: 1 (irreversible) 08:__ Units and tens of the maximum...

  • Page 78: Checking Actuator And Sensors

    Commissioning Vitotronic 100, GC1B Installation and Service Checking Actuators and Sensors Testing Relays 1. Press OK and simultaneously for approx. 4 sec. flashes on the display. 2. With select and confirm with OK. 3. Select required actuator with (see following table). The display shows the number for the activated actuator and “ON”.

  • Page 79: Connecting The Control Unit To The Lon

    Control unit transmits Control unit receives Control unit receives outside temperature. outside temperature. outside temperature. Set code “97:2”. Set code “97:1”. Set code “97:1”. Viessmann system Viessmann system Viessmann system number. number. number. Code “98:1”. Code “98:1”. Code “98:1”. LON participant fault...

  • Page 80: Integrating A Control Unit Into The Lon

    Commissioning Vitotronic 100, GC1B Installation and Service Integrating a Control Unit into the LON Carrying out a LON participant check The participant check is used to test communication with the system devices connected to the fault manager. Preconditions: The control unit must be programmed as fault manager (code “79:1”...

  • Page 81: Making The Lon Connections

    Commissioning Vitotronic 100, GC1B Installation and Service Making the LON Connection The Viessmann LON system is designed for the Connection with Viessmann LON cable “Line” BUS topology with a terminator at both ends (accessories). The transfer distances for LON are subject to the electrical properties of the respective cabling.

  • Page 82: Entering A Service Pin For Lon Participants

    Commissioning Vitotronic 100, GC1B Installation and Service Entering a Service PIN for LON Participants Integration of the Vitotronic 100 into a higher LON system, e.g. in conjunction with a third party control unit. The LON participant is identified with the service PIN. 1.

  • Page 83: Calling Up Service Level

    Service Scans Vitotronic 100, GC1B Installation and Service Calling Up the Service Level 1. Press OK and simultaneously for approx. 4 sec. flashes on the display. 2. Select required function. See the following pages. Leaving the Service Level 1. Press to select 9. 2.
  • Page 84 Service Scans Vitotronic 100, GC1B Installation and Service Brief Scan (continued) Brief Scan Display Number of KM BUS participants Number of LON participants SNVT configuration Software version communication Software version LON module 0:Auto coprocessor 1:Tool Subnet address/system no. Node address Burner type Appliance type Boiler coding card...

  • Page 85: Scanning And Resetting Service Display

    Service Scans/ Troubleshooting Vitotronic 100, GC1B Installation and Service Scanning and Resetting Service Display When the limits specified in coding addresses “21”, “23” or “1F” in category 2 “Boiler” are reached, the red fault indicator flashes and the following appears on the programming unit display (subject to the setting): The specified hours run and The defaulted interval with clock symbol u and...
  • Page 86 Troubleshooting Vitotronic 100, GC1B Installation and Service Fault Display (continued) Fault Codes Displayed System Characteristics Cause Measures Fault Code Control mode. Service “0F” is only Service required displayed in fault history. Note: After servicing, set code “24:0”. Short circuit, boiler Check the boiler water temperature With DHW tank: water temperature...
  • Page 87 Troubleshooting Vitotronic 100, GC1B Installation and Service Fault Display (continued) Fault Codes Displayed System Characteristics Cause Measures Fault Code Shunt pump constantly “ON”. Short circuit, temperature Check temperature sensor (see page 116). With primary store system: sensor aJB. Mixing valve primary circuit “Close”;...
  • Page 88 Troubleshooting Vitotronic 100, GC1B Installation and Service Fault Display (continued) Fault Codes Displayed System Characteristics Cause Measures Fault Code No solar DHW heating. Lead break, collector temperature Check solar control unit sensor. sensor, connection of temperature sensor & at solar control module. Solar control unit installation and service instructions No solar DHW heating.
  • Page 89 Troubleshooting Vitotronic 100, GC1B Installation and Service Fault Display (continued) Fault Codes Displayed System Characteristics Cause Measures Fault Code Control mode. Return temperature control configuration Insert plug aJA and check error: codes. Code “0C:1” in group 2 “Boiler” has been set, but plug aJA is not plugged in and/or code “4E:0”...
  • Page 90 Troubleshooting Vitotronic 100, GC1B Installation and Service Fault Display (continued) Fault Codes Displayed System Characteristics Cause Measures Fault Code Boiler cools down. Fault, maximum pressure limiter at Check system pressure; reset “X3” of plug-in adaptor 1 for external maximum pressure limiter. safety equipment.

  • Page 91: Boiler Water Temperature Control

    Function Description Vitotronic 100, GC1B Installation and Service Boiler Water Temperature Control Brief Description Boiler Protection Function The boiler water temperature is regulated by starting Therm-Control and stopping the burner or through modulation. (Start-up system) The set boiler water temperature is determined from For heating systems with distributor installed close the following parameters: to the boiler.
  • Page 92 Function Description Vitotronic 100, GC1B Installation and Service Boiler Water Temperature Control (continued) Connection in Heating Systems Without LON Single Boiler System Plug sÖA1 of the Vitotronic is used as switching contact for the Therm-Control. Required code: “4C:2” in category 1 “General”...
  • Page 93 Function Description Vitotronic 100, GC1B Installation and Service Boiler Water Temperature Control (continued) Requirement: Multi boiler systems with boiler circuit pump and 3-way – The boiler water flow rate must be able to be reduced mixing valve by at least 50%. Temperature sensor T1 records the return temperature.
  • Page 94 Function Description Vitotronic 100, GC1B Installation and Service Boiler Water Temperature Control (continued) Multi Boiler System Distribution Pump Plug sÖA1 of the Vitotronic is used as switching For heating systems with remote substation (> 20 m). contact. Requirement: Required code: “0d:1” in category 2 “Boiler” and The heat transfer must be able to be reduced.
  • Page 95 Function Description Vitotronic 100, GC1B Installation and Service Boiler Water Temperature Control (continued) Switching Hysteresis, Burner Permanent Switching Hysteresis Code “04:0” Heat Demand-dependent Switching Hysteresis The heat demand-dependent switching hysteresis takes the boiler load into account. The switching hysteresis, i.e. the burner runtime varies subject to actual heat demand.

  • Page 96: Dhw Tank Control

    Function Description Vitotronic 100, GC1B Installation and Service DHW Tank Control Control Sequence Brief Description Coding “55:0” in Category 3 “DHW”, tank Heating The DHW tank adjustable high limit functions as a constant temperature controller. This is achieved by The DHW tank Goes Cold (set value −2.5 K; change via starting and stopping the circulation pump for DHW coding address “59”...
  • Page 97 Function Description Vitotronic 100, GC1B Installation and Service DHW Tank Control (continued) The DHW tank Goes Cold (set value −2.5 K; change via Coding “55:3” in category 3 “DHW”, tank temperature coding address “59”): control, primary store system The set boiler water temperature is adjusted 20 K The DHW tank Goes Cold (set value −2.5 K;...

  • Page 98: Calling Up Coding Level 1

    Coding Level 1 Vitotronic 100, GC1B Installation and Service Calling Up Coding Level 1 Note: Codes that have not been assigned due to the heating system equipment level or the setting of other codes are not displayed. 1. Press OK and simultaneously for approx.

  • Page 99: Category 2 "Boiler

    Coding Level 1 Vitotronic 100, GC1B Installation and Service Category 2 “Boiler” Coding in the Delivered Condition Possible Change System Design 01:1 Single boiler system. 01:2 Multi boiler system with cascade control via LON (e.g. Vitotronic 300-K, type MW1B). 01:3 Multi boiler system with on site cascade control (third party control unit) via switching contacts (input avD and avH) or 0 –...

  • Page 100: Category 3 "Dhw

    Coding Level 1 Vitotronic 100, GC1B Installation and Service Category 2 “Boiler” (continued) Coding in the Delivered Condition Possible Change Flue Gas Monitor 1F:0 With flue gas temperature sensor: 1F:1 When the limit for the flue gas temperature is exceeded, is displayed.

  • Page 101: Category 4 "Solar

    Coding Level 1 Vitotronic 100, GC1B Installation and Service Category 4 “Solar” Only in conjunction with solar control module, type SM1. Coding Coding in the Delivered Condition Possible Change Speed control solar circuit pump 02:0 Solar circuit pump (multi stage) without speed 02:1 Solar circuit pump (multi stage) is speed- control by solar control module SM1.

  • Page 102: Calling Up Coding Level 2

    Coding Level 2 Vitotronic 100, GC1B Installation and Service Calling Up Coding Level 2 Note: At coding level 2, all codes are accessible, including the codes in coding level 1. Codes that have not been assigned due to the heating system equipment level or the setting of other codes are not displayed.

  • Page 103: Category 1 "General

    Coding Level 2 Vitotronic 100, GC1B Installation and Service Category 1 “General” Coding Coding in the Delivered Condition Possible Change 00:1 Heating circuit without mixing valve A1, without 00:0 Set automatically, if codes “01:2” or “01:3” DHW heating. are selected. 00:2 Heating circuit without mixing valve A1, and with DHW heating.

  • Page 104: Coding Level 2

    Coding Level 2 Vitotronic 100, GC1B Installation and Service Category 1 “General” (continued) Coding in the Delivered Condition Possible Change 4d:1 4d:2 Boiler circuit pump. Connection at plug sL: 4d:3 Boiler circuit pump with isolation valve function. Shunt pump. 4E:0 4E:1 Motor for 3-way mixing valve for return Connection at plug gS:...
  • Page 105 95:0 Without Vitocom 100 communication 95:1 With Vitocom 100 communication interface; interface. automatic recognition. 98:1 Viessmann system number (in conjunction 98:1 System number adjustable from 1 to 5. with monitoring several systems via Vitocom 300). 98:5 9b:0 No set minimum boiler water temperature...

  • Page 106: Category 2 "Boiler

    Coding Level 2 Vitotronic 100, GC1B Installation and Service Category 2 “Boiler” Coding Coding in the Delivered Condition Possible Change 01:1 Single boiler system. 01:2 Multi boiler system with cascade control via LON (e.g. Vitotronic 300-K, type MW1B). 01:3 Multi boiler system with on site cascade control (third party control unit) via switching contacts (input avD and avH) or 0 –...
  • Page 107 Coding Level 2 Vitotronic 100, GC1B Installation and Service Category 2 “Boiler” (continued) Coding in the Delivered Condition Possible Change 0C:5 Modulating isolation valve, independent of the 0C:0 No function. set boiler water temperature. 0C:1 Constant return temperature control. 0C:2 Time-controlled isolation valve.
  • Page 108 Coding Level 2 Vitotronic 100, GC1B Installation and Service Category 2 “Boiler” (continued) Coding in the Delivered Condition Possible Change 21:0 No service interval (hours run) selected. 21:1 The number of hours run before the burner should be serviced is adjustable from 100 21:100 to 10,000 h;...

  • Page 109: Category 3 "Dhw

    Coding Level 2 Vitotronic 100, GC1B Installation and Service Category 3 “DHW” Coding Coding in the Delivered Condition Possible Change 55:0 DHW tank heating, hysteresis ± 2.5 K. 55:1 Adaptive DHW tank heating enabled (see page 96). 55:2 DHW tank temperature control with 2 DHW tank temperature sensors (see page 97).

  • Page 110: Category 4 "Solar

    Coding Level 2 Vitotronic 100, GC1B Installation and Service Category 4 “Solar” Only in conjunction with solar control module, type SM1. Coding Coding in the Delivered Condition Possible Change 00:8 The solar circuit pump starts when the 00:2 The differential between the actual DHW collector temperature exceeds the actual temperature and the start point for the solar circuit DHW temperature by 8 K.
  • Page 111 Possible Change 0b:0 Frost protection function for solar circuit 0b:1 Frost protection function for solar circuit switched switched off. on (not required with Viessmann heat transfer medium). 0C:1 0C:0 nt monitoring switched on. nt monitoring switched off. No flow rate captured in the solar circuit, or flow rate too low.
  • Page 112 Coding Level 2 Vitotronic 100, GC1B Installation and Service Category 4 “Solar” (continued) Coding in the Delivered Condition Possible Change 23:4 Stop temperature differential for central heating 23:2 Stop temperature differential for central heating backup: 4 K. backup is adjustable from 1 to 29 K. Switching output sS is switched off when 23:30 the temperature at sensor / falls below the...

  • Page 113: Connection And Wiring Diagram

    Designs Vitotronic 100, GC1B Installation and Service Connection and Wiring Diagram Overview Legend A2 Main PCB low voltage A3 Main PCB 120V~ A6 Programming unit A7 Optolink PCB/emissions test switch A8 PCB A9 Boiler coding card A10 LON communication module (accessory) A11 Power supply unit PCB A12 ON/OFF switch Electrical interfaces...

  • Page 114: Main Pcb Low Voltage

    Designs Vitotronic 100, GC1B Installation and Service Connection and Wiring Diagram (continued) Main PCB Low Voltage Legend Boiler water temperature sensor § avD External hook-up %A DHW tank temperature sensor avG KM BUS participant %B DHW tank temperature sensor 2 for primary store avH External hook-up system (optional accessory) LON Cable for data exchange between control units...

  • Page 115: Main Pcb 120V

    Designs Vitotronic 100, GC1B Installation and Service Connection and Wiring Diagram (continued) Main PCB 120V~ Legend Primary pump or primary store system (optional sÖ Burner stage 2/modulating lÖ accessory) External connections (remove jumper when abÖ connecting) DHW pump a External safety equipment b External blocking Switching output Safety chain (potential-free)

  • Page 116: Boiler Coding Card

    Return Temperature Sensor Checking Sensors Note: The supply temperature sensor can be used as a strap on or immersion temperature sensor. Viessmann NTC 10 kΩ (blue identification) 1. Pull corresponding plug. 2. Check the sensor resistance and compare it with the curve.

  • Page 117: Extension Ea1 Accessory (Optional)

    Components Vitotronic 100, GC1B Installation and Service Extension EA1 Accessory (optional) Duration of the heating program changeover Contact constantly closed: The changeover is active as long as the contact is closed. Contact only closed briefly via push button: The changeover is enabled for the time selected in coding address “F2”...

  • Page 118: Parts List

    Parts List Vitotronic 100, GC1B Installation and Service Parts List When Ordering Spare Parts Quote the part and serial no. (see type plate A) and the item no. of the required part (as per this parts list). Standard parts are available from your local supplier. Parts 0001 Hinges 0004 Adjustable high limit rotary selector...

  • Page 119: Specification

    Specifications Vitotronic 100, GC1B Installation and Service Specifications Rated voltage 120V~ Rated frequency 60 Hz Rated current 2 x 6 A~ Power consumption 10 W Safety category Permiss. ambient temperature: During operation 32 to 104°F (0 to +40°C) Installation in living spaces or boiler rooms (standard ambient conditions) During storage and transport -4 to 149°F (−20 to +65°C)
  • Page 120 Vitotronic 100, GC1B Installation and Service...

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