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Vaillant sensoCOMFORT VRC 720/3 Operating And Installation Instruction

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VRC 720/3
en Operating and installation instructions
en Country specifics

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Summary of Contents for Vaillant sensoCOMFORT VRC 720/3

  • Page 1 sensoCOMFORT VRC 720/3 en Operating and installation instructions en Country specifics...
  • Page 2 Operating and installation instructions ... 3 Country specifics..........59...

  • Page 3: Table Of Contents

    Operating and installation Fault and maintenance messages ....51 Fault..............51 instructions Fault message ............. 52 Contents Maintenance message ........52 Information about the product ......52 Observing and storing other applicable Safety ..............4 documents ............52 Intended use ............4 Validity of the instructions ........

  • Page 4: Safety

    Safety General safety information 1.2.1 Danger! Intended use Validity: Except Ukraine In the event of inappropriate or improper use, damage to the product and other property ▶ Risk of burns! may arise. ▶ Risk of electric shock! The product is intended for using an eBUS ▶...

  • Page 5: Safety/Regulations

    -- Safety/regulations 1.3.1 Risk of material damage caused by frost ▶ Do not install the product in rooms prone to frost. 1.3.2 Regulations (directives, laws, standards) ▶ Observe the national regulations, stand- ards, directives, ordinances and laws. 0020334316_02 Operating and installation instructions...

  • Page 6: Product Description

    Product description What is a fixed value control? The system control regulates the flow temperature to two Which nomenclature is used? fixed temperatures, which are independent from the room or outdoor temperature. This control is suitable for a door air –...

  • Page 7: What Is Meant By "Time Period

    – The MENU | CONTROL | Cooling for several days function has been activated. – The competent person has activated the MENU | SETTINGS | Installer level | Installation configur- ation | Installation | Automatic cooling: function. 24 °C The function automatically switches between heating and cooling mode.

  • Page 8: Setting The Heat Curve

    2.12 Setting the heat curve 2.13.1 Control elements – Calling up the menu – Back to the main menu – Confirming a selection/change – Saving set values – One level back – Cancelling input – Navigating through the menu structure –...

  • Page 9: Operating And Display Functions

    2.14 Operating and display functions Note The functions described in this section are not available for all system configurations. To call up the menu, press twice. 2.14.1 Menu item CONTROL MENU CONTROL Zone Heating Mode: Manual Uninterrupted retention of the desired temperature Desired temperature: °C What do the different temperatures mean? (→...
  • Page 10 Weekly planner Up to twelve time periods can be set per day Within the time periods, the Target flow temp., desired: °C is used. Outside of the time periods, the Target flow temp., set-back: °C is used or the heating circuit is switched off. At a Target flow temp., set-back: °C = 0 °C, the frost protection can no longer be guaranteed.
  • Page 11 Normal ventilation level: Ventilation level for normal operating mode at average room air load with two to four people. Reduced ventilation level: Ventilation level for prolonged absence in order to reduce the energy consumption. Reduced Uninterrupted ventilation at ventilation level: Reduced Heat recovery: Uninterrupted recovery of the heat from the extract air Auto...
  • Page 12 Solar yield Energy yield of the connected solar system Environmental yield Energy yield of the heat source installation for the connected heat pumps Power consumption The installation's electrical energy consumption based on the re- spective system function and/or the overall installation Heating Current month, Last month, Current year, Last year, Total Current month, Last month, Current year, Last year, Total...
  • Page 13 Time: After the power is switched off, the time is retained for approx. 30 minutes. Display brightness: Brightness during active use. Dimmed displ. brightness: Brightness in standby. Daylight saving time: Define whether daylight saving time should be used. For outdoor temperature sensors with DCF77 receivers, the Day- light saving time: function is not used.
  • Page 14 Source regeneration: The system control switches the Cooling function on and guides the heat from the living room back to the earth via the heat pump. Prerequisite: – The Automatic cooling: function has been activated. – The Absence function is active. Factory setting: No Current room air humidity: %rel Current room air humidity, measured using the installed humidity...
  • Page 15 ESCO: Define what you want to deactivate when the signal is sent by the energy supply company or an external control. The selection re- mains deactivated until the signal is cancelled. The heat generator ignores the deactivation signal as soon as the frost protection function is active.
  • Page 16 Conf. ext. input: Select whether the external heating circuit is deactivated using a bridge or open terminals. Prerequisite: The FM5 and/or FM3 functional module is connected. Factory setting: Bridge,deact. Max. pre-heating time: Setting the time span so that the required room temperature is reached at the beginning of the first time period.
  • Page 17 Ext. cooling mode The signal of an external control is used to switch between heating and cooling. – MI contact closed = cooling – MI contact open = heating Heat generator 1 Status: Display of the current control command at the heat generator Current flow temperature: °C Display of the current heat generator flow temperature Heat pump 1...
  • Page 18 Max. target flow temperature:°C Enter the upper limit for the target flow temperature. The system control compares the set value with the calculated target flow tem- perature, and regulates to the smaller of these values. Factory setting: – 90 °C for a conventional heat generator –...
  • Page 19 Dew point offset: K Safety margin that is added to the current dew point. Prerequisite: – The Cooling possible: function has been activated. – The Dew point monitoring: function has been activated. Factory setting: 2 K Ext. heat demand: Display showing whether a heat demand is present at an external input.
  • Page 20 Cylinder charging offset: K Desired temperature + offset = flow temperature for the domestic hot water cylinder. Factory setting: – 25 K for a conventional heat generator – 10 K for a heat pump Max. cyl. charging time: Setting the maximum time at which the domestic hot water cylin- der can be charged without interruption.
  • Page 21 Solar pump kick: Accelerated recording of the collector temperature. When the func- tion is activated, the solar pump is switched on for a short time and the heated solar fluid is transported to the measuring point more quickly. Factory setting: Off Solar circuit prot.
  • Page 22 Minimum temperature: °C Setting the minimum temperature for starting the differential tem- perature control. Factory setting: 0 °C Maximum temperature: °C Setting the maximum temperature for stopping the differential tem- perature control. Factory setting: 99 °C Diff. temp. sensor 1: Display of the current temperature at differential temperature sensor 1 Diff.

  • Page 23: Electrical Installation, Set-Up

    Connecting the system control -- Electrical installation, set-up ▶ Connect the eBUS line to the eBUS terminals in the sys- Only qualified electricians may carry out the electrical install- tem control's wall base. ation. 3.4.1 Connecting a system control to the heat The heating installation must be decommissioned before generator work is carried out on it.

  • Page 24: Installing The System Control And Outdoor Temperature Sensor

    Installing the system control and outdoor temperature sensor Ø6 VRC 720 VRC 693 VRC 9535 H05VVF 2 x 0,75 mm² VRC 720 Ø 6 Operating and installation instructions 0020334316_02...
  • Page 25 VRC 693, VRC 9535 ≥ 2 VRC 693 Ø 6 0020334316_02 Operating and installation instructions...
  • Page 26 VRC 9535 Ø 6 Operating and installation instructions 0020334316_02...

  • Page 27: Using The Functional Modules, Basic System Diagram, Start-Up

    -- Using the functional modules, basic system diagram, start-up System without functional modules VRC 720 eBUS Simple systems with a direct heating circuit do not require a functional module. System with FM3 functional module FM3 (VR 70) VRC 720 eBUS Systems with two heating circuits that must be controlled separately from each other require the FM3 functional module.

  • Page 28: System With Fm5 And Fm3 Functional Modules

    System with FM5 and FM3 functional modules FM5 (VR 71) FM3 (VR 70) VRC 720 VR 92 eBUS Systems with more than two mixed heating circuits require the FM5 functional module. The system may comprise the following: – Maximum 1 x FM5 functional module –...

  • Page 29: Connection Assignment For The Fm5 Functional Module

    4.4.3 FM3 and FM5 functional modules If the FM3 and FM5 functional modules are installed in a system, each additional installed FM3 functional module adds two mixed heating circuits to the system. The potential configuration (FM3+FM5) corresponds to a defined terminal assignment for the FM3 (→ Section 4.6) functional module.

  • Page 30: Connection Assignment For The Fm3 Functional Module

    Configur- ation – SysFlow BufBt BufBtCH BufTop BufBt DEM1 DEM2 DEM3 Meaning of the abbreviations (→ Section 4.9.1) Sensor assignment Configura- tion – – – VR 10 VR 10 VR 10 VR 10 VR 10 VR 10 VR 11 VR 10 VR 10 VR 10 –...

  • Page 31: Settings For The Basic System Diagram Codes

    Sensor assignment Configuration – – – – – FM3+FM5 VR 10 VR 10 – – – – VR 10 VR 10 VR 10 Settings for the basic system diagram codes The systems are roughly grouped according to their connected system components. Each grouping contains a basic system diagram code that you must enter in the Basic system diagram code: function in the system control.
  • Page 32 4.7.4 Heat pump as a single unit (hybrid) With external back-up boiler A back-up boiler (with eBUS) is connected via the VR 32 (address 2). A back-up boiler (without eBUS) is connected to the output for the heat pump or the heat pump control module for the ex- ternal back-up boiler.

  • Page 33: Combinations Of Basic System Diagram And Configuration Of Functional Modules

    Combinations of basic system diagram and configuration of functional modules You can use the table to check the selected combination of the basic system diagram code and the configuration of func- tional modules. Basic System With With FM5 With Without system FM5, Configuration...

  • Page 34: Basic System Diagram And Wiring Diagram

    Basic system diagram and wiring diagram Abbreviation Meaning 4.9.1 Meaning of the abbreviations Tamper-proof capped valve 9k[x] 3-port mixing valve Abbreviation Meaning Cooling 3-port mixing valve Heat generator Thermostatic mixing valve Domestic hot water back-up boiler Flow meter (TacoSetter) Heating back-up boiler Cascade valve Domestic hot water/heating back-up boiler Thermometer...
  • Page 35 Abbreviation Meaning Room thermostat Cooling signal Transmission system operator interface Solar yield Solar yield sensor SysFlow System temperature sensor TD1, TD2 Temperature sensor for a differential temper- ature control Switch contact for remote control Isolating circuit with switching floor-standing boiler 0020334316_02 Operating and installation instructions...
  • Page 36 4.9.2 Basic system diagram 0020184677 4.9.2.1 Setting on the system control Basic system diagram code: 1 Operating and installation instructions 0020334316_02...
  • Page 37 4.9.2.2 Basic system diagram 0020184677 0020334316_02 Operating and installation instructions...
  • Page 38 4.9.2.3 Wiring diagram 0020184677 Operating and installation instructions 0020334316_02...
  • Page 39 4.9.3 Basic system diagram 0020178440 4.9.3.1 Setting on the system control Basic system diagram code: 1 FM3 configuration: 1 FM3 MO: Circulation pump Circuit 1 / Circuit type: Heating Circuit 2 / Circuit type: Heating Zone 1/ Zone activated: Yes Zone 2/ Zone activated: Yes 0020334316_02 Operating and installation instructions...
  • Page 40 4.9.3.2 Basic system diagram 0020178440 Operating and installation instructions 0020334316_02...
  • Page 41 4.9.3.3 Wiring diagram 0020178440 Burn. 24V= 0020334316_02 Operating and installation instructions...
  • Page 42 4.9.4 Basic system diagram 0020177912 4.9.4.1 Special features of the system 8: At least 35% of the nominal flow rate must always be able to flow through a reference room without an individual room temperature control valve. 4.9.4.2 Settings on the system control Basic system diagram code: 8 Circuit 1 / Room temp.
  • Page 43 4.9.4.4 Basic system diagram 0020177912 0020334316_02 Operating and installation instructions...
  • Page 44 4.9.4.5 Wiring diagram 0020177912 Operating and installation instructions 0020334316_02...
  • Page 45 4.9.5 Basic system diagram 0020280010 4.9.5.1 Special features of the system 5: The cylinder temperature cut-out must be installed in a suitable location in order to avoid cylinder temperatures above 100 °C. 4.9.5.2 Settings on the system control Basic system diagram code: 1 FM5 configuration: 2 FM5 MO: Anti-legio.
  • Page 46 4.9.5.4 Basic system diagram 0020280010 Operating and installation instructions 0020334316_02...
  • Page 47 4.9.5.5 Wiring diagram 0020280010 0020334316_02 Operating and installation instructions...
  • Page 48 4.9.6 Basic system diagram 0020260774 4.9.6.1 Special features of the system 17: Optional component 4.9.6.2 Setting on the system control Basic system diagram code: 1 FM5 configuration: 6 Circuit 1 / Circuit type: Heating Circuit 1 / Room temp. mod.: Active or Expanded Circuit 2 / Circuit type: Heating Circuit 2 / Room temp.
  • Page 49 4.9.6.4 Basic system diagram 0020260774 0020334316_02 Operating and installation instructions...
  • Page 50 4.9.6.5 Wiring diagram 0020260774 Operating and installation instructions 0020334316_02...

  • Page 51: Start-Up

    In the system control, navigate to the MENU | SET- -- Start-up TINGS | Installer level | Installation configuration | Circuit | Cooling possible: function and confirm by Prerequisites for starting up pressing Yes. – The system control and outdoor temperature sensor have Navigate to the MENU | SETTINGS | Installer level | been installed and wired.

  • Page 52: Fault Message

    Fault message CE marking with the text of the fault message appears in the display.   You can find fault messages under MENU | SETTINGS | The CE marking shows that the products comply with the Installer level | Fault history basic requirements of the applicable directives as stated on the declaration of conformity.

  • Page 53: Product Data In Accordance With Eu Ordinance No. 811/2013, 812/2013

    Product data in accordance with EU Ordinance no. 811/2013, 812/2013 On units with integrated weather-compensated controls, in- cluding a room thermostat function that can be activated, the seasonal room-heating efficiency always includes the cor- rection factor for control technology class VI. The seasonal room-heating efficiency may deviate if this function is deac- tivated.

  • Page 54: Appendix

    Appendix Troubleshooting, maintenance message Troubleshooting Symptom Possible cause Measure Display remains dark Software error Press and hold the button on the top right of the system control for longer than five seconds in order to force a re- start. Switch off the mains switch on all heat generators for ap- prox.

  • Page 55: Troubleshooting

    Symptom Possible cause Measure Heat generator continues to Incorrect value in the Room In the Room temp. mod.: function, set the value Active or heat once the room temperature temp. mod.: or Zone assign- Expanded. has been reached ment: function In the zone in which the system control is installed, assign the system control's address in the Zone assignment: func- tion.
  • Page 56 Code/meaning Possible cause Measure ▶ FM3 missing Missing FM3 Connect the FM3. F.1244 ▶ DHW temperature sensor S1 Domestic hot water temperature Connect the domestic hot water temperature sensor to the missing at FM3 sensor S1 not connected FM3. F.1245 ▶...

  • Page 57: Maintenance Messages

    Maintenance messages Code/meaning Description Maintenance work Interval Heat generator The heat generator requires Refer to the operating or install- See the operating or installation 1 requires main- maintenance work. ation instructions for the relev- instructions for the heat gener- tenance *, * Can ant heat generator for informa- ator be heat generator...

  • Page 58: Index

    Index Article number ..............52 CE marking................52 Connecting a system control to the heat generator .... 23 Connecting a system control to the ventilation unit ..... 23 Connecting the system control ..........23 Control elements ..............8 Determining the installation site .......... 23 Display...................
  • Page 59 Маркування національним знаком відповідності вирoбу свідчить його відповідність вимогам Технічних регламен- а) устаткування придбане у офіційних поста- тів України. чальників Vaillant у країні, де буде здійснюва- тися його установка; б) введення в експлуатацію і обслуговування устаткування здійснюється уповноваженими Vaillant організаціями, що мають чинні місцеві...
  • Page 60 фірмовий сервіс Vaillant, що мають чинні місцеві до- зволи і ліцензії (охорона праці, газова служба, поже- жна безпека і т.д.). Гарантійний термін на замінені після закінчення га- рантійного строку вузли, агрегати і запасні частини становить 6 місяців. У результаті ремонту або за- міни...
  • Page 64 威能（中国）供热制冷环境技术有限公司 12-15层 上海市黄浦区鲁班路558号经纬国际大厦 中国上海 200023 电话 021 60287900 传真 021 60287999 威能售后服务电话 400 7001890 0020334316_02 info@vaillant.com.cn www.vaillant.cn Vaillant Group International GmbH Berghauser Strasse 40 D-42859 Remscheid Tel. +49 2191 18 0 www.vaillant.com ДП «Вайллант Група Україна» вул. Лаврська 16 01015 м. Київ Teл. 044 339 9840 Факс. 044 339 9842 Гаряча...

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