Vaillant flexoTHERM exclusive VWF 57/4 Installation And Maintenance Instructions Manual
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Vaillant flexoTHERM exclusive VWF 57/4 Installation And Maintenance Instructions Manual

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For the competent person
Installation and maintenance instructions
Publisher/manufacturer
Vaillant GmbH
Berghauser Str. 40
D-42859 Remscheid
Tel. +49 21 91 18‑0
Fax +49 21 91 18‑28 10
info@vaillant.de
www.vaillant.de
Installation and maintenance instructions
flexoTHERM exclusive
VWF 57/4 230 V
VWF 87/4 230 V
VWF 117/4 230 V
GB

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  • Page 1 Installation and maintenance instructions For the competent person Installation and maintenance instructions flexoTHERM exclusive VWF 57/4 230 V VWF 87/4 230 V VWF 117/4 230 V Publisher/manufacturer Vaillant GmbH Berghauser Str. 40 D-42859 Remscheid Tel. +49 21 91 18‑0 Fax +49 21 91 18‑28 10 info@vaillant.de www.vaillant.de...

  • Page 2: Table Of Contents

    Contents Contents 8.10 Installing optional accessories......28 8.11 Checking the electrical installation ...... 28 Safety ..............4 8.12 Completing installation......... 28 Action-related warnings ......... 4 Start-up ............... 29 Intended use ............4 Operating concept ..........29 General safety information ........4 Starting up the heat pump ........
  • Page 3 Contents Characteristic values for the VR 10 external temperature sensor ........... 48 Characteristic values for internal temperature sensors ......... 49 Characteristic values for the VRC DCF outdoor temperature sensor......50 Heat pump schematic........51 Commissioning Checklist......... 53 Commissioning Checklist......... 56 Technical data............

  • Page 4: Safety

    1 Safety Safety Intended use also covers installation in ac- cordance with the IP class. Action-related warnings Any other use that is not specified in these Classification of action-related warnings instructions, or use beyond that specified in The action-related warnings are classified in this document shall be considered improper accordance with the severity of the possible use.
  • Page 5 Safety 1 1.3.4 Risk of material damage caused by If the installation surface does not have suffi- frost cient load-bearing capacity, the product may topple. ▶ Do not install the product in rooms prone to frost. There is a risk of death if the connections are subject to leaks.

  • Page 6: Regulations (Directives, Laws, Standards)

    1 Safety 1.3.11 Risk of material damage caused by Regulations (directives, laws, using an unsuitable tool standards) ▶ Use the correct tool to tighten or loosen ▶ Observe the national regulations, stand- screw connections. ards, guidelines and laws. 1.3.12 Risk of material damage caused by condensate inside the house In heating mode, the lines between the heat pump and the heat source (environment cir-...

  • Page 7: Notes On The Documentation

    Notes on the documentation 2 – Notes on the documentation System sensor, if required – With ground heat source: Ground sensor Observing other applicable documents – With well water heat source: Groundwater module ▶ You must observe all the operating and installation in- The heat pump system generates heat for heating installa- structions included with the system components.

  • Page 8: Functionality

    3 System overview Functionality As thermal energy can only pass from a body at a higher temperature to a body at a lower temperature, the coolant in 3.2.1 Heat pump the evaporator must have a lower temperature than the heat source.

  • Page 9: Safety Devices

    System overview 3 3.2.2 Weather-controlled system controller 3.3.5 Pump- and valve-blocking protection system The heat pump system is equipped with a weather-controlled system controller that provides heating, cooling and hot wa- This function prevents the pumps for heating water and ter handling depending on the control type and controls this brine and all diverter valves from sticking.

  • Page 10: Product Description

    4 Product description Product description 4.1.2 Rear view Product design 4.1.1 Front view, open Connection: From the Heating circuit dia- heat pump to the heat phragm expansion tank source (cold brine, B) connection Connection: From the Heating return heat source to the heat Heating flow pump (hot brine, A) Recessed handles and...

  • Page 11: Explanation Of Product Stickers

    7th to 16th digits = product Applicability: Great Britain article number Read the instructions Vaillant is a licensed member of the Benchmark Scheme. Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers are Explanation of product stickers...

  • Page 12: Installation

    5 Installation Installation Checking the scope of delivery Carefully remove the packaging and padding without damaging the parts of the product. Check that the scope of delivery is complete. Quantity Description Heat pump Installation set comprising – 3 x flat seal (yellow/green) for heating circuit –...

  • Page 13: Dimensions

    Installation 5 Dimensions 90 115 115 90 0020213395_00 flexoTHERM exclusive Installation and maintenance instructions...

  • Page 14: Minimum Clearances

    5 Installation Minimum clearances 5.5.1 Using carrying handles Remove the front casing. (→ Page 15) Danger! Risk of injury due to repeated use of the carrying handles. 300 mm 200 mm Due to material ageing, the carrying handles are not designed to be reused during any subsequent transportation.

  • Page 15: Installing The Product

    Installation 5 Removing the front casing Never transport the product as illustrated above. Installing the product Remove the front flap on the operator control panel by taking hold of the recessed handles with both hands 0-10 mm and lifting off the front flap towards you. ▶...

  • Page 16: Removing The Casing Top And Side Casings

    5 Installation Pull each part of the front casing forwards slightly and remove it by lifting it upwards. Removing the casing top and side casings To remove a side casing, remove the four screws at the front and the three screws at the back. Remove the side casing.

  • Page 17: Carrying Out The Hydraulics Installation

    Caution. Vaillant recommends that you install the Risk of damage from magnetite deposits. Vaillant heat pump brine filling unit (not In heating installations with steel pipes, required when installing the groundwater module). By doing this, it is then possible to...

  • Page 18: Hydraulic Wiring In The System

    7 Filling and purging the system Hydraulic wiring in the system Treating the filling and supplementary water ▶ Observe all applicable national regulations and technical 6.4.1 Installing heating circuits with direct standards when treating the filling and supplementary connection water. Install the hydraulic components in accordance with Provided the national regulations and technical standards the local requirements as shown in the system diagram...

  • Page 19: Filling And Purging The Brine Circuit

    Open the filling and drain valve for the heating circuit. Only the brine fluids named here are authorised by Vaillant Open the heating water supply slowly. for operating the heat pump. Fill with water until the pressure gauge (on-site) shows...
  • Page 20 Start up the filling pump (67) in order to fill and rinse the brine circuit. In the event of special requirements, the following heat trans- fer media are also authorised by Vaillant for the ground and Allow the filling pump (67) to run for at least 10 minutes groundwater heat sources: in order to fill and rinse the circuit sufficiently.

  • Page 21: Electrical Installation

    Electrical installation 8 – Electrical installation Max. torque of the connection terminals: 1.2 Nm Routing eBUS lines Danger! Route the eBUS lines in a star formation from a junction Risk of death from electric shock caused box to the individual products. by a residual-current circuit breaker not Ensure that you do not route the eBUS lines parallel to working.

  • Page 22: Switch Box

    8 Electrical installation Switch box 8.4.1 Connecting the continuous power supply for the compressor and control system ▶ Connect the continuous power supply to the mains con- nection (X101). (→ Page 36) 8.4.2 Connecting the blockable power supply for the auxiliary heater ▶...
  • Page 23 Electrical installation 8 La is the closing contact. If the cut-off relay contact to the well pump is closed, there is no voltage at La. The X200 (2) connection for the optional temperature sensors available as accessories is labelled RR for return connections and VV for flow connections.

  • Page 24: Mains Connection Pcb

    8 Electrical installation Mains connection PCB Note The total current consumption of all connected external consumers (including X141, X143, X144, X145) must not exceed 2.4 A. [X102] Mains connection for internal auxiliary electric [X101] Mains connection for compressor and 230 V electronics system –...
  • Page 25 Electrical installation 8 [X20A] Connection for controller PCB communica- [X140] Connection for 3-way diverter valve for pass- tion line ive cooling module [X201] (not used) [X142] 3-way mixer valve for passive cooling module [X200] Optional temperature sensors for groundwa- [X104] Internal auxiliary electric heating connection ter module [X131] Optional external brine pressure switch con- [X203] Optional flow temperature sensor for heating...

  • Page 26: Controller Pcb

    8 Electrical installation Controller PCB [X23] EEV connection (electrical expansion valve) [X24] (not used) [X40] VR40 edge connector (electrical lines) [X41] Edge connector for external sensors (outside temperature sensor, DCF, system sensor, multi- [X51] Edge connector for display connection function input (can be adjusted in the system con- [X30] eBUS connection/diagnostics interface troller)) [X26] Sensor cable harness...
  • Page 27 Electrical installation 8 [X100/BUS] Bus connection (VR 900) [X1] 230 V supply for controller PCB [X20] Data connection to mains connection PCB and [F1] F1 T 4A/250 V fuse power supply for the in-rush current limiter [X12] Edge connector for 230 V supply for optional [X14] Circulation pump connection VR 40 [X15] Connection for internal 3-way valve for hot...

  • Page 28: Connecting The System Controller And Accessories To The Electronics System

    8 Electrical installation Connecting the system controller and Installing the VRC DCF accessories to the electronics system ▶ Install the VRC DCF receiver in accordance with the in- stallation instructions for the system controller. Install the system controller in accordance with the in- stallation instructions supplied.

  • Page 29: Start-Up

    Start-up 9 Start-up ceeded (> 40 °C), active cooling mode is switched off. This limit can only be changed by Vaillant Customer service. Operating concept 9.3.4 Enabling auxiliary electric heating → Operating instructions On the system controller, you can select whether the auxili-...

  • Page 30: Calling Up The Installer Level

    The larger the preset negative numerical system. Vaillant recommends that you retain this setting. value, the longer the periods for which the compressor op- erates or does not operate.
  • Page 31 Adapting the unit to the heating installation 10 10.2.2 Remaining feed head of building circuit 10.2.2.3 Remaining feed head for VWF 11x/4 pump building circuit pump at nominal flow 10.2.2.1 Remaining feed head for VWF 5x/4 building circuit pump at nominal flow Air heat source Remaining feed head in hPa (mbar)

  • Page 32: Setting The Flow Temperature In Heating Mode (With No Controller Connected)

    11 Troubleshooting 10.3 Setting the flow temperature in heating Groundwater heat Pump output in % source mode (with no controller connected) Remaining feed head in hPa (mbar) Activate manual mode. – Menu → Installer level → Configuration → Enable limp home mode 10.2.4.2 Remaining feed head for VWF 8x/4 environment circuit pump at nominal flow Press...

  • Page 33: Checking Fault Codes

    Inspection and maintenance 12 11.2 Checking fault codes Characteristic values for the VR 10 external temperature sensor (→ Page 48) The display shows a fault code F.xxx. A plain text display Characteristic values for internal temperature sensors explains the displayed fault code. (→...

  • Page 34: Inspection And Maintenance Check-List

    13 Decommissioning – Min. brine fluid operating pressure: ≥ 0.07 MPa 12.3 Inspection and maintenance check-list (≥ 0.70 bar) The following table shows the inspection and maintenance ▶ If you notice frequent losses in pressure, determine and work that must be carried out at specific intervals. eliminate the cause.

  • Page 35: Disposing Of The Brine Fluid

    15 Customer service Applicability: Great Britain To ensure regular servicing, it is strongly recommended that arrangements are made for a Maintenance Agreement. Please contact Vaillant Service Solutions for further details: Telephone: 0330 100 3461 0020213395_00 flexoTHERM exclusive Installation and maintenance instructions...

  • Page 36: Appendix

    Appendix Appendix Power supply 1~/N/PE 230 V (connection diagram 1 = 1~/N/PE 230V 50Hz 1~/N/PE 230V 50Hz 1~/N/PE 230B 50Гц 1~/N/PE 230B 50Гц Power supply for internal auxiliary electric heating X101 Mains connection for compressor Continuous power supply X102 Mains connection for internal auxiliary electric heat- This is how it is wired when supplied.

  • Page 37: C Installer Level Overview

    Appendix Installer level overview Setting level Values Unit Increment, select, ex- Default setting Setting planation Min. Max. Installer level → Enter code 1 (competent person code 17) Installer level → List of faults → Deleting F.086 – F.1120 Installer level → Test menu → Statistics → Compressor hours Current value Compressor starts...
  • Page 38 Appendix Setting level Values Unit Increment, select, ex- Default setting Setting planation Min. Max. Environment circuit actuators T.14 Env. circuit pump power T.16 Cooling mixer position (only Closes Opens Closes, Stops, Opens Stops for passive cooling) T.17 Well pump Off, On Refrigeration circuit actuators T.32 4-way valve (only for active Open...
  • Page 39 Appendix Setting level Values Unit Increment, select, ex- Default setting Setting planation Min. Max. T.127 High pressure bar (abs) −40 ℃ T.128 Condensation temperature T.129 Low pressure bar (abs) −40 ℃ T.130 Evaporation temperature −40 K T.131 Superheating target value −40 K...
  • Page 40 Appendix Setting level Values Unit Increment, select, ex- Default setting Setting planation Min. Max. Enviro. pump set p. Ground/brine – VWF 5x/4 230 V: 100 – VWF 8x/4 230 V: 100 – VWF 11x/4 230 V: 100 Well – VWF 5x/4 230 V: 47 –...

  • Page 41: D Status Codes - Overview

    Appendix Setting level Values Unit Increment, select, ex- Default setting Setting planation Min. Max. ℃ Freeze protection Ground/brine: -7 Ground/brine: −14 Well: +2 Well: +2 Heat. rod outp. range External 230 V – External – 2 kW – 3.5 kW –...
  • Page 42 Appendix Status code Meaning S.141 Heating: Heating rod shutdown S.142 Heating: Heating rod blocked S.151 Hot water: Heating rod shutdown S.152 Hot water: Heating rod blocked General displays S.170 Compressor: Phase failure S.171 Compressor: Incorrect phase seq. S.172 Compressor: ICL fault S.173 Anti-cycling time for the energy supply company...

  • Page 43: E Fault Codes

    Appendix Status code Meaning S.350 Heating rod: Safety cut-out open S.351 Heating rod: Flow temp. too high S.352 Heating rod: Pressure too low S.353 Heating rod: Flow rate too low S.354 Heating rod: Phase failure Fault codes Note In the event of rare faults which are caused by components in the refrigeration circuit, inform Customer Service. Remedy Code Meaning...
  • Page 44 Appendix Remedy Code Meaning Cause – – F.702 Temp. sensor fault: Environment Sensor not connected or sensor in- Check the sensor, and replace if cir. out put has short-circuited necessary – Replace the cable harness – – F.703 Sensor fault: Low pressure Sensor not connected or sensor in- Check the sensor, and replace if put has short-circuited...
  • Page 45 Appendix Remedy Code Meaning Cause – – F.723 Building circuit: Pressure too low Pressure loss in the building circuit Check the building circuit for leaks due to leaks or air pockets – Top up with water, purge – Building circuit pressure sensor de- –...
  • Page 46 Appendix Remedy Code Meaning Cause – – F.735 Evaporation temperature too high Temperature in the environment cir- Reduce or stop the external heat cuit (heating mode) or building cir- that is entering cuit (cooling mode) too high for com- – Check the de-icer (does it heat pressor operation up even though it is Off in the...
  • Page 47 Appendix Remedy Code Meaning Cause – – F.787 Environment circuit: Pressure Pressure loss in the environment Check the environment circuit for mon. open circuit due to leaks or air pockets leaks – – Environment circuit pressure monitor Top up the medium (brine/water), defective purge –...

  • Page 48: Characteristic Values For The Vr 10 External Temperature Sensor

    Appendix Remedy Code Meaning Cause – – F.1119 Compressor: ICL fault In-rush current limiter defective or Check all plug contacts incorrectly connected – Checking the ICL compressor con- – Mains voltage too low nection – Check the ICL controller PCB con- nection –...

  • Page 49: Characteristic Values For Internal Temperature Sensors

    Appendix Temperature (°C) Resistance (ohms) Characteristic values for internal temperature sensors Temperature (°C) Resistance (ohms) 327344 237193 173657 128410 95862 72222 54892 42073 32510 25316 19862 15694 12486 10000 8060 6535 5330 4372 3605 2989 2490 2084 1753 1481 1256 1070 0020213395_00 flexoTHERM exclusive Installation and maintenance instructions...

  • Page 50: Characteristic Values For The Vrc Dcf Outdoor Temperature Sensor

    Appendix Characteristic values for the VRC DCF outdoor temperature sensor Temperature (°C) Resistance (ohms) 2167 2067 1976 1862 1745 1619 1494 1387 1246 1128 1020 Installation and maintenance instructions flexoTHERM exclusive 0020213395_00...

  • Page 51: I Heat Pump Schematic

    Appendix Heat pump schematic TT 20 PT 20 TT 21 TZ 21 FLT1 TT 11 PT 11 PZ 11 TZ 11 PT 10 TT 10 FLT2 TT 31 TT 30 PT 30 Heating circuit diaphragm expansion tank connec- Compressor tion Heating pump Circulation connection Brine pump...
  • Page 52 Appendix Evaporator TT17 Electronic expansion valve outlet temperature sensor Evaporator for intermediate injection TT20 Heating return temperature sensor Auxiliary electric heater TT21 Heating flow temperature sensor PT10 Low-pressure sensor TT30 Source inlet temperature sensor PT11 High-pressure sensor TT31 Source outlet temperature sensor PT20 Heating circuit pressure sensor TZ11...

  • Page 53: J Commissioning Checklist

    Appendix Commissioning Checklist Applicability: Great Britain Benchmark Commissioning and Servicing Section It is a requirement that the boiler is installed and commissioned to the completed in full. www.centralheating.co.uk © Heating and Hotwater Industry Council (HHIC) 0020213395_00 flexoTHERM exclusive Installation and maintenance instructions...
  • Page 54 Appendix AIR TO WATER 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 55 Appendix 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 Record below, please ensure you have carried out the service as described in the manufacturer’s instructions. SERVICE 01 SERVICE 02 Date:...

  • Page 56: K Commissioning Checklist

    Appendix Commissioning Checklist Applicability: Great Britain Benchmark Commissioning and Servicing Section It is a requirement that the boiler is installed and commissioned to the completed in full. www.centralheating.co.uk © Heating and Hotwater Industry Council (HHIC) Installation and maintenance instructions flexoTHERM exclusive 0020213395_00...
  • Page 57 Appendix 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 58 Appendix 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 59: L Technical Data

    Appendix Technical data General Dimensions VWF 57/4 230 V VWF 87/4 230 V VWF 117/4 230 V Product dimensions, height, without ad- 1,183 mm 1,183 mm 1,183 mm justable feet Product dimensions, width 595 mm 595 mm 595 mm Product dimensions, depth 600 mm 600 mm 600 mm...
  • Page 60 Appendix VWF 57/4 230 V VWF 87/4 230 V VWF 117/4 230 V – – – Output levels for the auxiliary electric 2.0 / 3.5 / 5.5 kW 2.0 / 3.5 / 5.5 kW 2.0 / 3.5 / 5.5 kW heater (connection diagram 1;...

  • Page 61: Brine Heat Source

    Appendix VWF 57/4 230 V VWF 87/4 230 V VWF 117/4 230 V Max. electrical power consumption, heat- 63 W 63 W 63 W ing pump Heating pump type High-efficiency pump High-efficiency pump High-efficiency pump Refrigeration circuit VWF 57/4 230 V VWF 87/4 230 V VWF 117/4 230 V Coolant type...
  • Page 62 Appendix Building circuit/heating circuit VWF 57/4 230 V VWF 87/4 230 V VWF 117/4 230 V Nominal flow at ΔT 5 K 930 l/h 1,450 l/h 1,930 l/h Max. remaining feed head with ΔT 5 K 0.065 MPa 0.044 MPa 0.03 MPa (0.650 bar) (0.440 bar)

  • Page 63: Groundwater Heat Source

    Appendix Groundwater heat source Heat source circuit/brine circuit and groundwater circuit VWF 57/4 230 V VWF 87/4 230 V VWF 117/4 230 V Heat source module VWW 11/4 SI VWW 11/4 SI VWW 11/4 SI 10 ℃ 10 ℃ 10 ℃ Min.
  • Page 64 Appendix Application limits for the heat pump: Heating (heat source = groundwater) – At the same volume flow rates in the heating circuit (ΔT 5 K or ΔT 8 K) and the brine circuit (ΔT 3 K) as for the nominal heat output test under standard nominal conditions.

  • Page 65: Measuring Currents = I

    Appendix Measuring currents = I 1~/N/PE 1~/N/PE 3~/PE 230 V 2~/PE 230 V 230 V 230 V VWF xxx/4 230 V X101 X101 0,0 kW 11,9 11,9 11,9 2,0 kW 11,9 11,9 11,9 3,5 kW 15,2 11,9 15,2 15,2 11,9 11,9 5,5 kW 23,9...
  • Page 68 0020213395_00 11.02.2016 Vaillant Ltd. Nottingham Road Belper Derbyshire DE56 1JT Telephone 0330 100 3461 info@vaillant.co.uk www.vaillant.co.uk © These instructions, or parts thereof, are protected by copyright and may be reproduced or distributed only with the manufacturer's written consent. We reserve the right to make technical changes.

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Flexotherm exclusive vwf 87/4Flexotherm exclusive vwf 117/4

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