Vaillant geoTHERM Installation Instructions Manual
  1. Manuals
  2. Brands
  3. Vaillant Manuals
  4. Heat Pump
  5. geoTHERM SERIES
  6. Installation instructions manual

Vaillant geoTHERM Installation Instructions Manual

Hide thumbs Also See for geoTHERM:
Table of Contents

Advertisement

Quick Links

See also: Instructions for Use Manual
Installation instructions
For the heating engineer
Installation instructions
geoTHERM
Heat pump
GB

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the geoTHERM and is the answer not in the manual?

Questions and answers

Related Manuals for Vaillant geoTHERM

Summary of Contents for Vaillant geoTHERM

  • Page 1 Installation instructions For the heating engineer Installation instructions geoTHERM Heat pump...

  • Page 2: Table Of Contents

    5.4.2 Installation instructions ..........30 7.5.2 Installing the VRC DCF ..........58 Installing the mixed circuit with buffer tank, Installing accessories that are absolutely DHW tank and external passive cooling necessary ................ 59 (VWS only) ...............32 Installation instructions geoTHERM 0020051574_04...
  • Page 3 Carrying out the maintenance work ......96 10.4 Carrying out a restart and trial operation ....97 Fault diagnosis and rectification ......97 11.1 Fault types ...............97 11.2 Faults in eBUS components ........98 11.3 Faults with temporary warning ........ 98 Installation instructions geoTHERM 0020051574_04...

  • Page 4: Notes On The Documentation

    (¬ Ch.  3.1). manual (¬ Ch. 2.1.1). Symbol denoting additional useful tips and information > Symbol for a required task Installation instructions geoTHERM 0020051574_04...

  • Page 5: Ce Label

    – EN 12263:1998, -2:2007 – EN 12102:2008 – EN 14511:2007 – EN ISO 9614-1:1995, -2:1996, -3:2002 – ISO 5149 The CE declaration of conformity can be accessed from the manufacturer and can be provided as required. Installation instructions geoTHERM 0020051574_04...

  • Page 6: Safety Instructions And Regulations

    This unit is not intended for use by persons (including chil- observe these instructions. dren) with physical, sensory or mental impairments or who > When installing the geoTHERM heat pump, observe the have inadequate experience and/or knowledge, unless they general safety and warning information that may appear are supervised by a person responsible for their safety or before an action.

  • Page 7: Safety Instructions Regarding Coolant

    > Ensure that there is sufficient ventilation in the event of tural damage. > Do not install the geoTHERM heat pumps with external accidental release. > Avoid the accumulation of steam/air mixtures. Keep passive cooling in heating installations that have radia- brine fluid containers closed.

  • Page 8: Regulations, Rules, Guidelines

    – Building regulations part „L“ and directives concerning energy saving – Building regulations such as G3 covering Hygiene and L8 Legieonella. – COSHH regulations – Other relevant bodies such as HETAS and OFTEC Installation instructions geoTHERM 0020051574_04...

  • Page 9: Description Of Functions And Units

    Rated power - compressor, pumps and controller Identification plate On the geoTHERM heat pump, an identification plate is Rated power - auxiliary heater affixed to the front of the frame You can read the type des- ignation of the heat pump from the sticker (1) (¬ Fig. 3.3)

  • Page 10: Functional Principle

    The Vaillant geoTHERM heat pump VWS uses geothermal pressor, where it is compressed. This causes the pressure heat as its heat source, whereas the geoTHERM heat pump and temperature of the coolant vapour to rise sharply. After VWW uses well/groundwater.

  • Page 11: Design Of The Heat Pump

    Description of functions and units Design of the heat pump The Vaillant geoTHERM heat pump is available in the types listed below. Type name Heating output (kW) B0/W35 DT 5K Brine-Water Heat Pumps (VWS) VWS 220/2 21.6 VWS 300/2 29.9 VWS 380/2 38.3...
  • Page 12 13 Controller PCB (under cover plate) Some components, such as heating circuit pump, 3-way valves or electrical auxiliary heater, are integrated into the VWS and VWW geoTHERM heat pumps, but these must be placed on-site and installed externally. Installation instructions geoTHERM 0020051574_04...

  • Page 13: Optional Accessories

    Optional accessories Other accessories that are available from Vaillant – Brine concentrate You can use the following Vaillant units to enhance the heat – Filling pump for brine circuit pump system. Further information about installing Vaillant – Heat pumps for brine filling unit units is available in ¬ Ch. 7.7.

  • Page 14: Installation

    7 °C and does not > Do not install the geoTHERM heat pumps exceed a maximum of 25 °C. > Note that the installation room must have a minimum with external passive cooling in heating installations that have radiators.
  • Page 15 6.0 - 7.5 7.5 - 9.0 ¨ ¨ > 9.0 à ¨ <10 mS/cm à ¨ Electrical conductivity 10 - 500 mS/cm ¨ ¨ (at 20 °C) >500 mS/cm ¯ ¨ 4.2 Well water quality limit values Installation instructions geoTHERM 0020051574_04...

  • Page 16: Dimensions And Clearances

    Installation Dimensions and clearances 1200 1100 1099 4.1 Dimensions and clearances 1) Adjustable feet adjustable in height by 10 mm Installation instructions geoTHERM 0020051574_04...

  • Page 17: Requirements For The Heating Circuit

    > If required, clean the pipelines thoroughly before filling them. 4.3 Arrangement of the flexible hoses > Plan the exact installation site of the geoTHERM heat pump and the pipe installation in such a way that the supplied flexible connecting hoses can be connected to the vibration isolation.

  • Page 18: Check The Scope Of Delivery

    For the key, see tab. 4.3 The heat pump is delivered on a pallet and consists of three packing units. > Check the heat pump and the operating panel that is packed separately for any damage caused in transit. Installation instructions geoTHERM 0020051574_04...

  • Page 19: Removing The Transport Locks

    (grey) and the brine/ > Dispose of the transport locks correctly. These are no well water circuit (yellow/green) longer required. Lower and upper front cladding, front and rear cover 4.3 Scope of delivery Installation instructions geoTHERM 0020051574_04...

  • Page 20: Transporting The Heat Pump

    Ensure that the mode of transport that you select is designed to match the weight of the heat pump. > You can find out the weight of the heat pump from the technical data (¬ Tab. 14.1 ¬ Tab. 14.2 Installation instructions geoTHERM 0020051574_04...
  • Page 21 Installation 4.6 Permitted modes of transport Installation instructions geoTHERM 0020051574_04...

  • Page 22: Installing The Heat Pump

    (¬ Fig.  4.2 and ¬ Fig. 4.3) are kept. 0-10 mm 4.7 Adjust the adjustable feet > Adjust the adjustable feet to ensure that the heat pump is horizontal. Only fit the cladding panels after you have completed all of the installation work (¬ Ch. 7.9). Installation instructions geoTHERM 0020051574_04...

  • Page 23: Hydraulics Installation

    > During the installation, observe the applicable regula- tions. > Observe the following note about avoiding sound trans- mission: To reduce the level of noise to a minimum, thread the pipes through ceilings and walls with insulation against structure-borne sound. Installation instructions geoTHERM 0020051574_04...

  • Page 24: Installing The Direct Heating Mode

    Caution: Schematic only! These examples of hydraulic schemes do not contain all of the shut-off and safety instruments that are required for correct installation. > Observe the applicable standards and regulations. Installation instructions geoTHERM 0020051574_04...
  • Page 25 Hydraulics installation 5.2 Sample hydraulic scheme: Direct heating mode Installation instructions geoTHERM 0020051574_04...

  • Page 26: Installing The Mixed Circuit With Buffer Tank

    Caution: Schematic only! These examples of hydraulic schemes do not contain all of the shut-off and safety instruments that are required for correct installation. > Observe the applicable standards and regulations. Installation instructions geoTHERM 0020051574_04...
  • Page 27 Hydraulics installation 5.3 Sample hydraulic scheme: Mixed circuit with buffer tank Installation instructions geoTHERM 0020051574_04...

  • Page 28: Installing The Direct Heating Mode And Dhw Tank

    DHW tank. > When connecting the hydraulics, observe the ¬ installation instructions for the cylinder and the ¬ geoTHERM planning information. The 1” diverter valve supplied in the VPS/2 multi storage tank must be replaced by two 3-way diverter valves that must be installed on-site .
  • Page 29 Hydraulics installation 5.4 Sample hydraulic scheme: The direct heating mode and DHW tank Installation instructions geoTHERM 0020051574_04...

  • Page 30: Installing The Mixed Circuit With Buffer Tank And Dhw Tank

    DHW tank. > When connecting the hydraulics, observe the ¬ installation instructions for the cylinder and the ¬ geoTHERM planning information. The 1” diverter valve supplied in the VPS/2 multi storage tank must be replaced by two 3-way diverter valves that must be installed on-site.
  • Page 31 Hydraulics installation 5.5 Sample hydraulic scheme: The mixed circuit with buffer tank and DHW tank Installation instructions geoTHERM 0020051574_04...

  • Page 32: Installing The Mixed Circuit With Buffer Tank, Dhw Tank And External Passive Cooling (Vws Only)

    DHW tank. > When connecting the hydraulics, observe the ¬ installation instructions for the cylinder and the ¬ geoTHERM planning information. The 1” diverter valve supplied in the VPS/2 multi storage tank must be replaced by two 3-way diverter valves that must be installed on-site.
  • Page 33 Hydraulics installation 5.6 Sample hydraulic scheme: The mixed circuit with buffer tank, DHW tank and external passive cooling Installation instructions geoTHERM 0020051574_04...

  • Page 34: Fitting The Flexible Connecting Hoses

    (3 and 5.7 Removing the blind caps > Remove the blind caps (1) from the unit’s connections. These are no longer required and can be properly dis- posed of. Installation instructions geoTHERM 0020051574_04...

  • Page 35: Connect The Heat Pump To The Heating Circuit

    > Install the blow-off line in a frost-free environment so that it always remains easily accessible and visible. We recommend that you install a Vaillant safety group and a drain pipe. > Fit the heating flow and return and all the components.

  • Page 36: Fitting The Brine Expansion Tank In The Brine Circuit (Vws Only)

    (57). > Put hemp on the outside thread of the lower connecting piece. > Install the brine expansion tank with the lower connect- ing piece in the pipeline from the heat source to the heat pump. Installation instructions geoTHERM 0020051574_04...

  • Page 37: Connecting The Heat Pump To The Well Water Circuit (Vww Only)

    Negative pressure in the well water pipe- lines may cause damage to the flexible hoses within the heat pump. > Ensure that there cannot be any nega- tive pressure in the pipelines when oper- ating and after switching off the well pump. Installation instructions geoTHERM 0020051574_04...

  • Page 38: Filling The Heating And Heat Source Circuit

    < 50 No change or < 3 0.02 Vaillant accepts no liability for the compatibility of any addi- tives in the rest of the heating installation or for their effect > 50 to 200 0.02...

  • Page 39: Filling And Bleeding The Heating Circuit

    The individual steps of the filling and bleeding procedure when using the Vaillant heat pump brine filling unit are described below. The brine filling unit allows you to carry out a preparatory partial bleed of the brine circuit and to fill and bleed in one operation.

  • Page 40: Filling And Bleeding The Outer Part Of The Brine Circuit

    Fig. 5.8, Pos. 3 > Mix each mixing batch carefully. Fig. 5.8, Pos. 4 > Check the mixture ratio of the brine fluid. Vaillant recom- From the heat source to the heat pump From the heat pump to the heat source mends the use of a refractometer for this purpose.

  • Page 41: Filling And Bleeding The Inner Part Of The Brine Circuit

    (72). > Close the stop valve (62). > Switch off the filling pump and close the stop valve (72). > Remove the hose from the stop valve (72). Installation instructions geoTHERM 0020051574_04...

  • Page 42: Filling And Bleeding The Entire Brine Circuit In One Operation

    (61). > Close the stop valve (62). > Switch off the filling pump and close the stop valve (61). > Remove the hose from the stop valve (61). Installation instructions geoTHERM 0020051574_04...

  • Page 43: 6.3.5 Building Up Pressure In The Brine Circuit

    > If there is any brine fluid left over, store this in a suitable container (e. g. a plastic canister) for subsequent replen- ishment. > Label the container with the specifications regarding the type of brine fluid and the set concentration. Installation instructions geoTHERM 0020051574_04...

  • Page 44: Electrical Installation

    > Do not use free terminals on the heat pump as base ter- minals for further wiring. You can find an overview of the complete elec- trical circuit diagram in (¬ Ch. 17). Installation instructions geoTHERM 0020051574_04...

  • Page 45: Electronic Switchbox

    (motor protection) 6 Compressor protector contactor 13 (VWS only) Protector contactor, brine pump 7 Compressor control contactor 14 Controller PCB 8 In-rush current limiter contactor 15 Connection strip for sensors and external components Installation instructions geoTHERM 0020051574_04...
  • Page 46 13 (VWS only) Protector contactor, brine pump 6 Compressor protector contactor 14 Controller PCB 7 Protection for external electrical auxiliary heater 15 Connection strip for sensors and external components 8 VWW only: Control button for well pump overcurrent Installation instructions geoTHERM 0020051574_04...

  • Page 47: Connecting The Electricity Supply

    > Tighten the strain relief clamps. The power companies provide various types of power sup- ply for heat pumps. The heat pump can be operated with various types of mains feed. Two types of connection are described in the following pages. Installation instructions geoTHERM 0020051574_04...

  • Page 48: Unblocked Mains Supply (Electric Wiring Diagram 1)

    The heat pump is connected to the supply network using a Pump (brine circuit pump) single electricity rate (a consumption meter) (1). > Connect the electricity supply to the primary mains sup- ply (1). Compressor Controller Installation instructions geoTHERM 0020051574_04...

  • Page 49: Duel-Circuit Supply Heat Pump Rate (Electric Wiring Diagram 2)

    The duration and frequency of the lock-out is determined by the power company or must be clarified with them. Controller > Remove the bypass pipework (dashed lines, 3). > Connect the permanent electricity supply to the stand- ard rate mains supply (2). Installation instructions geoTHERM 0020051574_04...

  • Page 50: Connecting The External Heating Circuit Pump

    I = 2 A and U = 230 V 1. If these values are exceeded, install a relay/circuit breaker that is to be Pump (heating circuit pump) fitted on-site and switch the pump using this. Installation instructions geoTHERM 0020051574_04...

  • Page 51: Connecting The External Well Pump (Vww Only)

    > Use the control button (9) (¬ Fig. 7.1) or (8) (¬ Fig. 7.2) on the overcurrent relay to set the breaking current to 10 % above the rated current of the well pump (0.8 - 2.7 A). Installation instructions geoTHERM 0020051574_04...

  • Page 52: Connecting The External Electric Auxiliary Heater (Optional)

    You can choose to connect an external electric auxiliary heater (to be fitted on-site) to the heating boost function in emergency operation . > Connect the electricity supply for the electric auxiliary heater (1). > Connect the electric auxiliary heater yourself (2). Installation instructions geoTHERM 0020051574_04...

  • Page 53: Connecting The Limit Thermostat (Unblocked Mains Supply)

    If there is a lock-out due to the limit thermostats, the con- troller displays the error message 91 (¬ Ch. 11.5). > Remove the bypass pipework (dashed line) (2). > Connect a limit thermostat to the terminals (1). Installation instructions geoTHERM 0020051574_04...

  • Page 54: Connecting A Limit Thermostat (Dual-Circuit Supply)

    > Connect a limit thermostat to the terminals (1). A limit thermostat (on-site) can be connected as additional floor protection. If there is a lock-out due to the limit thermostats, the con- troller displays the error message 91 (¬ Ch. 11.5). Installation instructions geoTHERM 0020051574_04...

  • Page 55: Connecting External Brine Switch (Vws Only)

    If there is a lock-out due to the brine switch, the controller displays the error message 91 (¬ Ch. 11.5). > Remove the bypass pipework (dashed line) (2). > Connect an external brine switch to the terminals (1). Installation instructions geoTHERM 0020051574_04...

  • Page 56: Connecting An External 3-Way Brine Mixing Valve Cooling (Vws Only, For Optional External Passive Cooling)

    7.17 Connecting an external 3-way brine mixing valve cooling 3-way brine mixing valve If you install the optional external passive cooling: > Connect the external 3-way brine mixing valve cooling (to be fitted on-site) to the terminals (1). Installation instructions geoTHERM 0020051574_04...

  • Page 57: Controller Pcb (Overview)

    Open: compressor is allowed to operate VWS only: Control of 3-way brine mixing valve Closed: compressor operation blocked cooling (on terminal strip) 14 1xCP Contact for one-time requirement for the circulation pump, e. g. using an external button Installation instructions geoTHERM 0020051574_04...

  • Page 58: Installing The Supplied Accessory

    -60 °C. It is not possible to correctly control the flow temperature and the external elec- tric auxiliary heating. No warning message is recorded in the Error History. > Install the supplied VRC DCF receiver with external sensor. Installation instructions geoTHERM 0020051574_04...

  • Page 59: Installing Accessories That Are Absolutely Necessary

    > Fit an external well pump. > Fit a second external heating circuit pump in the > Connect the well pump as described in (¬ Ch. 7.3.4). heating circuit. > Connect a second external heating circuit pump to termi- nal HK2-P (5) (¬ Fig. 7.18). Installation instructions geoTHERM 0020051574_04...

  • Page 60: Installing Optional Accessories

    PCB via the eBUS. > Check that there is no voltage. 7.21 Installing remote control units The structure of the Vaillant system allows you to lay the You can connect the following optional accessories: eBus from component to component (¬ Fig. 7.21. Switching –...

  • Page 61: Installing Vr 60

    You can use an existing external boiler as an auxiliary heater. You can use the VR 32 accessory to connect boilers with Vaillant eBUS interfaces to the eBUS of the heat pump (¬ VR 32 installation instructions). Boilers without eBUS interfaces are connected using a cut- off relay (accessory) and the auxiliary heater contact (1) (¬ Fig. 7.18).

  • Page 62: Connecting An External Boiler Without Ebus Interface

    7.26 Fitting the upper part of the front cladding > Guide the eBUS line for the operating panel and, if you are using the vrnetDIALOG accessory, the 230 V voltage Installation instructions geoTHERM 0020051574_04...
  • Page 63 (¬ Ch. 7.10) before > Push the operating panel into the clip holder on the continuing to fit the cladding. mounting plate and then screw in the operating panel from the rear. Installation instructions geoTHERM 0020051574_04...
  • Page 64 > Push the rear upper cladding for the pipe feed into the clip holder. 7.30 Fitting the cover column for the operating panel > Push the cover column for the operating panel into the clip holder on the mounting plate for the operating panel. Installation instructions geoTHERM 0020051574_04...

  • Page 65: Installing Vrnetdialog 840/2 And 860/2

    > Connect the antenna cable or telephone cable (4) to the vrnetDIALOG (see (¬ vrnetDIALOG installation man- ual). These cables must not be fed through the heat pump. Installation instructions geoTHERM 0020051574_04...

  • Page 66: Start-Up

    (¬ Ch. 11). 8.3 Menu A2: Select a hydraulic scheme and electric The controller automatically checks the correct phase wiring diagram sequence. > If a fault message is displayed, swap two of the phases with each other. Installation instructions geoTHERM 0020051574_04...

  • Page 67: Selecting A Hydraulic Scheme

    = Unblocked mains supply = Duel-circuit supply heat pump rate While the bleeding function is active, the brine pump > Press the dial to confirm your selection. switches between operating for 50 minutes and being idle for 10 minutes. Installation instructions geoTHERM 0020051574_04...

  • Page 68: Checking And Bleeding The Heating Circuit

    8.1.6 Bleeding the DHW tank, if required If an external DHW tank is connected: > Open all domestic hot water draw-off points in the building. > Close all draw-off points as soon as hot water escapes. Installation instructions geoTHERM 0020051574_04...

  • Page 69: Adapting The Appliance To The Heating System

    > 12 °C. If a domestic hot water cylinder is connected, it is heated if the temperature sensor measures < 10 °C. Cylinder charging is switched off if the temperature sensor SP measures > 15 °C. Installation instructions geoTHERM 0020051574_04...
  • Page 70 Installation Assistent A4 (¬ Ch. 9.7.4). If the brine pressure drops below 60 kPa (0,6 bar) for a A value of +4 °C was set in the factory for the geoTHERM duration of more than one minute, a warning message VWW heat pumps. This value cannot be changed.

  • Page 71: Settable Functions

    When the function is started, the current time of the start is saved. The day is changed exactly at this time. After network-off/-on, the floor-drying begins as follows: Installation instructions geoTHERM 0020051574_04...

  • Page 72: 9.3.3 Additional Functions Via Vrdialog

    Fixed value control You can use this function to set a fixed flow temperature via vrDIALOG independently of the control which is influ- enced by atmospheric conditions. Installation instructions geoTHERM 0020051574_04...

  • Page 73: Energy Balance Control (Hydraulics Diagram 1 Or 3)

    VF1 flow temperature sensor of the buffer tank is lower than the target temperature. It heats for as long as it takes the return temperature sensor RF1 of the buffer tank to reach the target temperature plus 2 K. Installation instructions geoTHERM 0020051574_04...

  • Page 74: Resetting To Factory Settings

    > After carrying out this operation, have the values which were noted down to hand. > Page through all values on the controller. > Check the value and reset the values which were noted down, where necessary. 9.4 Resetting to factory settings Installation instructions geoTHERM 0020051574_04...

  • Page 75: Calling Up Code Level Menus

    Unintentional modification of the sys- tem-specific parameters can cause malfunctions or damage to the heat pump. > Do not try to access the code level by making arbitrary entries in the code level. 9.5 Calling up Code level menus Installation instructions geoTHERM 0020051574_04...

  • Page 76: Menu C: Set Parameters For The Heating System

    If the selected heating curve is too low, the desired temperature level may only be reached after a while or not reached at all. 9.6 Menu C: Set parameters for the heating system Installation instructions geoTHERM 0020051574_04...
  • Page 77 T buffer top <VF1>: Temperature of the buffer tank T buffer Bottom <RF1> 25°C flow temperature sensor VF1 T buffer Bottom <RF1>: Temperature of the buffer tank return temperature sensor RF1 9.6. Menu C: Set parameters for the heating system Installation instructions geoTHERM 0020051574_04...
  • Page 78 If the mixer is not acti- vated, OFF appears. If a VR 60 is connected, the lower menu appears sev- eral times (for each heating circuit). 9.6. Menu C: Set parameters for the heating system Installation instructions geoTHERM 0020051574_04...
  • Page 79 VR 90 remote control unit is connected (YES/ NO). If YES, the room temperature measured at the VR 90 is also displayed. This menu may appear repeatedly (for every heating circuit with remote control). 9.6. Menu C: Set parameters for the heating system Installation instructions geoTHERM 0020051574_04...
  • Page 80 => start at -720°min. Out T. aux htr on (Bivalence point): Auxiliary heater for reheating is only enabled in heating mode below this outside temperature (settable in Tab. 9.9, Menu A3).. 9.6. Menu C: Set parameters for the heating system Installation instructions geoTHERM 0020051574_04...
  • Page 81 20 °C. > Do not set the cooling mode flow temperature too low. Cooling Hours: Brine pump operating hours in cooling mode. 9.6. Menu C: Set parameters for the heating system Installation instructions geoTHERM 0020051574_04...
  • Page 82 >Select temperature The heating circuits connected to the buffer tank must be mixed circuits. 9.6. Menu C: Set parameters for the heating system Installation instructions geoTHERM 0020051574_04...

  • Page 83: Menu D: Carrying Out Diagnoses

    Comp Low Pressure: Display for compressor inlet refrigerant pressure. T inlet compressor: (compressor inlet, intake side): Display of temperature sensor T2.* 9.7 Menu D: Carrying out diagnoses* * see Figs. 1 and 2 in the appendix Installation instructions geoTHERM 0020051574_04...
  • Page 84 1.2 bar CH pressure: Pressure in the heating circuit (heating Auxiliary heater circuit pressure sensor). Auxiliary heater: Status of auxiliary heating: ON/OFF Menu D: Carrying out diagnoses* * see Figs. 1 and 2 in the appendix Installation instructions geoTHERM 0020051574_04...
  • Page 85 Current DHW temp.: Temperature in the DHW tank. <UV1>: = Status of the 3-way diverter valve for heat- ing/cylinder charging (CH = heating circuit, HW = hot water). Menu D: Carrying out diagnoses* * see Figs. 1 and 2 in the appendix Installation instructions geoTHERM 0020051574_04...

  • Page 86: Menu I: Display General Information

    User interface: User interface software version (dis- User Interface 3.04 play in the operating panel). VR 90 2.21 VR 90: displays the software release when a VR 90 is connected. 9.8 Menu I: Displaying general information Installation instructions geoTHERM 0020051574_04...
  • Page 87 Codes accepted ? Incorrect settings damage the heat >Select pump. > On no account must the Code val- ues be changed. Code 1/Code 2: Values must not be changed! 0000; FFFF Menu I: Displaying general information Installation instructions geoTHERM 0020051574_04...

  • Page 88: Menu A: Calling Up Installation Assistent

    Accept change >Select Appliance Code: Type Designation VWS 220/2 VWS 300/2 VWS 380/2 VWS 460/2 VWW 220/2 VWW 300/2 VWW 380/2 VWW 460/2 9.9 Menu A: Calling up Installation Assistent Installation instructions geoTHERM 0020051574_04...
  • Page 89 (Not applicable for VWS/VWW – DHW + CH: External auxiliary heating available for ..0/2) domestic hot water and heating circuit. – DHW: External auxiliary heating available only for domestic hot water. Menu A: Calling up Installation Assistent Installation instructions geoTHERM 0020051574_04...
  • Page 90 When the compressor is switched on, the heating circuit pump and brine pump are also automatically connected. UV1 = Heating/cylinder charging diverter valve in position DHW = "Hot water preparation" CH = "Heating mode" Menu A: Calling up Installation Assistent Installation instructions geoTHERM 0020051574_04...
  • Page 91 Internal sensors can only be changed via vrDIALOG or Calibration vrnetDIALOG, and buffer and cylinder sensors only T buffer top <VF1> 0.0 K with the appropriate hydraulics. Display contrast Display contrast: Setting the display contrast (0 – 25). Menu A: Calling up Installation Assistent Installation instructions geoTHERM 0020051574_04...
  • Page 92 The heat pump starts Install. completed? >YES under its autonomous control system. >Adjustable values This menu no longer appears once "YES" has been set during commissioning. Menu A: Calling up Installation Assistent Installation instructions geoTHERM 0020051574_04...

  • Page 93: Parameters Which Can Only Be Set With Vrdialog

    Pre-loading time: 0 hrs To take account of the inertia of the underfloor heating, you can manually set a pre-heat before the start of the programmed heating time. 9.10 Parameters which can only be set with vrDIALOG Installation instructions geoTHERM 0020051574_04...
  • Page 94 If 20 K has been set, the function is deactivated. Brine pump pre-run Brine pump pre-run: Time period by which the brine 1 min. pump switches on before the compressor. 9.10 Parameters which can only be set with vrDIALOG Installation instructions geoTHERM 0020051574_04...
  • Page 95 -120 °min. - 600 °min. = -720 °min. The auxiliary heating system is switched off if the flow target temperature at VF2 is exceeded by 3 K. 9.10 Parameters which can only be set with vrDIALOG Installation instructions geoTHERM 0020051574_04...

  • Page 96: Inspection And Maintenance

    VWS/VWW 380/2 and 460/2 only: nance and repair work to ensure long-term correct opera- – Check all components of the coolant circuit for corrosion tion of the geoTherm heat pump and to prevent the and wear. approved factory settings from being changed.

  • Page 97: Carrying Out A Restart And Trial Operation

    Error History (Menu I 1) (¬ Tab. 9.8). – In addition, other types of fault/malfunction may occur in the heat pump or heating system. Installation instructions geoTHERM 0020051574_04...

  • Page 98: Faults In Ebus Components

    Pressure drop in the brine circuit > Top up the brine fluid. (VWS only) due to leaks or air cushions. > Rinse and bleed the brine circuit. Pressure < 60 kPa (0.6 bar) 11.2 Faults with temporary warning Installation instructions geoTHERM 0020051574_04...

  • Page 99: Fault With Temporary Switch-Off

    > Check the well pump, sluice and motor pro- Flow switch faulty or not connected. tection switch, and replace if necessary. > Check the correct operation of the flow switch. 11.3 Fault with temporary switch-off Installation instructions geoTHERM 0020051574_04...
  • Page 100 6x = Min./max. power frequency flashing, find the cause in the list of flash 7x = No compressor connected codes above and rectify the fault, and inform the factory customer service department if necessary. 11.3 Fault with temporary switch-off Installation instructions geoTHERM 0020051574_04...
  • Page 101 27 and 28 are possible.. If the error occurs twice in a row the heat pump cannot be started until after 60 min. at the earliest. 11.3 Fault with temporary switch-off Installation instructions geoTHERM 0020051574_04...

  • Page 102: Fault With Permanent Switch-Off

    (power failure in the mains power supply or discon- nection via domestic fuses/circuit breakers) or – RESET of the software (I4) or – Resetting the fault message The heat pump is then restarted with compressor opera- tion. Installation instructions geoTHERM 0020051574_04...
  • Page 103 Error flow sensor VF2 Hot water The clamp-on temperature sensor mode possi- VF2 in the heating circuit is faulty Short circuit/disconnec- or it is not connected correctly. tion in the sensor 11.4 Fault with permanent switch-off Installation instructions geoTHERM 0020051574_04...
  • Page 104 Error 27 has occurred three times in a row Coolant pressure too low. possible Check heat source See Error 28. See Error 28. Fault 28 has occurred three times in succession 11.4 Fault with permanent switch-off Installation instructions geoTHERM 0020051574_04...
  • Page 105 Circuit breaker F1 on printed cir- cuit board faulty. necessary. > Check the brine pressure switch or Brine pressure switch fitted on- site (VWS only) or limit thermo- limit thermostat. stat has opened. 11.4 Fault with permanent switch-off Installation instructions geoTHERM 0020051574_04...
  • Page 106 > Check the pressure sensor for correct sure sensor operation. > Replace the pressure sensor. 11.4 Fault with permanent switch-off Installation instructions geoTHERM 0020051574_04...

  • Page 107: Other Errors/Malfunctions

    1, ¬ operating instructions). > Change the night set back temperature Night set back temperature not optimally set. (Menu 1, ¬ operating instructions). > Change the heating curve (Menu C2) Heating curve not optimally set. ¬ Tab.  9.6 11.5 Other errors/malfunctions Installation instructions geoTHERM 0020051574_04...

  • Page 108: Recycling And Disposal

    Arranging disposal of coolant Both the geoTHERM heat pump and the associated trans- The geoTherm heat pump is filled with R 407 C coolant. port packaging are made predominantly out of recyclable The coolant must be disposed of separately from the heat raw materials.

  • Page 109: Customer Service And Guarantee

    Customer service and guarantee Customer service and guarantee 13.1 Vaillant warranty Vaillant provides a full parts and labour warranty for this appliance. The appliance must be installed by a suitably competent person in accordance with the Gas Safety (Installation and Use) Regulations 1998, and the manufacturer’s instructions.

  • Page 110: Technical Data

    EN 60529 level of protection IP 20 Hydraulic connections - Heating circuit flow and return Inch, mm G 1 1/2", DN 32 - Heat source flow and return Inch, mm G 1 1/2", DN 32 14.1 Technical Data VWS Installation instructions geoTHERM 0020051574_04...
  • Page 111 - Quantity 5,99 - Number of revolutions EX valve - Permissible operating overpressure MPa (bar) 2,9 (29) - Compressor type Scroll - Oil Ester (EMKARATE RL32-3MAF) - Oil filling quantity 4,14 4,14 14.1 Technical Data VWS Installation instructions geoTHERM 0020051574_04...
  • Page 112 DT 5K in the heat- ing circuit Operation of the pump outside the application limits results in the heat pump being switched off by the internal control and safety installations. 14.1 Technical Data VWS Installation instructions geoTHERM 0020051574_04...

  • Page 113: Technical Data Vww

    51,2 (512) 58,2 (582) 71,9 (719) 86,0 (860) - Internal pressure loss at nominal volu- metric flow rate - Heat source circuit materials within Cu, CuZn-Alloy, Stainless Steel, Fe, EPDM the heat pump 14.2 Technical Data VWW Installation instructions geoTHERM 0020051574_04...
  • Page 114 DT 5K in the heat- W10/W25 ing circuit Operation of the pump outside the application limits results in the heat pump being switched off by the internal control and safety installations. 14.2 Technical Data VWW Installation instructions geoTHERM 0020051574_04...

  • Page 115: Commissioning Report

    Was a dirt filter used at the brine side inlet of the heat pump for the filling operation? After completion, was the dirt filter removed? Were non-return valves built into the brine circuit? Were balancing valves built into the brine circuit? 15.1 Commissioning report Installation instructions geoTHERM 0020051574_04...
  • Page 116 Were all cables fastened using strain relief clamps? If available, was a ripple control signal connected to the heat pump by the power supply operator? Assembly checklist Were all the cladding panels fitted? 15.1 Commissioning report Installation instructions geoTHERM 0020051574_04...

  • Page 117: Reference

    > Fill out the following tables in order to facilitate any servicing work which may be necessary. Installation and commissioning were carried out by: Heat source construction Date: Company: Name: Address Telephone: Electrical installation Date: Company: Name: Address Telephone: Start-up Date: Company: Name: Address Telephone: Installation instructions geoTHERM 0020051574_04...
  • Page 118 Drilling depth of the probes Details regarding the ground collector Details Number of brine circuits Distance between the installed pipes Pipe diameter Installation depth of the collector in the ground Length of the longest brine circuit 16.1 Reference checklist Installation instructions geoTHERM 0020051574_04...
  • Page 119 Documentation handover Details Was the operating instructions handed over to the user? Was the installation manual handed over to the user? Were the manuals for all the accessories handed over to the user? 16.1 Reference checklist Installation instructions geoTHERM 0020051574_04...

  • Page 120: Appendix

    5363 19862 4238 15694 3372 12486 2700 10000 2176 8060 1764 6535 1439 5330 1180 4372 3605 2989 2490 2084 1753 1481 1256 1070 17.1 Appendix, VR 10 sensor characteristics 17.2 Appendix, VR 11 sensor characteristics Installation instructions geoTHERM 0020051574_04...
  • Page 121 Appendix VRC-DCF outside temperature sensor Temperature (°C) Resistance (ohms) 2167 2067 1976 1862 1745 1619 1494 1387 1246 1128 1020 17.3 Appendix, VRC DCF sensor characteristics Installation instructions geoTHERM 0020051574_04...
  • Page 122 14 heating circuit pump (to be fitted on-site) 6 Low pressure sensor 15 Heating return line 7 Low pressure switch 16 3-way heating/cylinder charging diverter valve 8 Brine circuit pressure sensor (to be fitted on-site) 9 Evaporator 17 DHW return line Installation instructions geoTHERM 0020051574_04...
  • Page 123 5 Compressor 15 Heating return line 6 Low pressure sensor 16 3-way heating/cylinder charging diverter valve 7 Low pressure switch (to be fitted on-site) 8 Heat source circuit pressure sensor 17 DHW return line 9 Evaporator Installation instructions geoTHERM 0020051574_04...
  • Page 124 Fuse T4A/250 V orange orange orange brown Fuse yellow-green T4A/250 V brown blue yellow-green brown blue yellow-green brown blue yellow-green brown brown blue white yellow-green white 17.3 Appendix, Electrical circuit diagram VWS 220/2 - VWS 300/2 Installation instructions geoTHERM 0020051574_04...
  • Page 125 Fuse yellow-green T4A/250 V brown blue yellow-green brown blue yellow-green yellow-green blue black grey brown brown white blue yellow-green white 17.4 Appendix, Electrical circuit diagram VWS 380/2 - VWS 460/2 Installation instructions geoTHERM 0020051574_04...
  • Page 126 T4A/250 V brown blue grey grey blue brown yellow-green brown brown brown brown blue yellow-green black brown yellow-green grey blue black black blue white grey white brown 17.5 Appendix, Electrical circuit diagram VWW 220/2 - VWW 300/2 Installation instructions geoTHERM 0020051574_04...
  • Page 127 Fuse yellow-green T4A/250 V brown blue blue brown yellow-green brown blue brown yellow-green yellow-green grey blue black black blue grey brown white white 17.6 Appendix, Electrical circuit diagram VWW 380/2 - VWW 460/2 Installation instructions geoTHERM 0020051574_04...

  • Page 128: Index

    VR 90 ..................79 Groundwater quality ..............14 Safety instructions ............... 6 Scale drawing................16 Scope of delivery ................. 18 Heating curve ................77 Sentinel ..................38 Heating water Symbols used ................. 4 Additives .................. 38 Quality ..................38 Installation instructions geoTHERM 0020051574_04...
  • Page 129 Index Transport lock ................19 Type designation ................4 water hardness ................38 Well water quality ................ 14 Installation instructions geoTHERM 0020051574_04...

  • Page 130: Ground Source Heat Pump Commissioning Checklist

    GROUND SOURCE HEAT PUMP COMMISSIONING CHECKLIST This Commissioning Checklist is to be completed in full by the competent person who commissioned the heat pump and associated equipment as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference.

  • Page 131: Service Record

    SERVICE RECORD It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed. Service Provider Before completing the appropriate Service Interval Record below, please ensure you have carried out the service as described in the manufacturer’s SERVICE 01 SERVICE 02 Date:...
  • Page 132 Supplier Manufacturer...

Table of Contents