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Summary of Contents for Vaillant flexoTHERM exclusive VWF 57/4 230V
- Page 1 flexoTHERM exclusive VWF 57 - 117/4 230V en Installation and maintenance instructions...
- Page 2 Installation and maintenance Carrying out the wiring......... 26 8.10 Installing the VRC DCF........26 instructions 8.11 Installing optional accessories ......26 Contents 8.12 Connecting the circulation pump ......26 8.13 Connecting the heat pump system to the photovoltaic installation........26 Safety ..............
- Page 3 Circuit diagram ..........37 Power supply 1~/N/PE 230 V (wiring diagram 1 = ) ..........38 Power supply 3~/PE 230 V (wiring diagram ) ..............38 Installer level overview........39 Status codes – Overview ........43 Maintenance messages ........45 Fault codes............
- Page 4 Safety General safety information 1.2.1 Risk caused by inadequate Intended use qualifications There is a risk of injury or death to the user or The following work must only be carried out others, or of damage to the product and other by competent persons who are sufficiently property in the event of improper use or use qualified to do so:...
- Page 5 ▶ Wait for at least 3 minutes until the capa- ▶ Avoid skin or eye contact with the refriger- citors have discharged. ant. ▶ Check that there is no voltage. ▶ In the event of skin or eye contact with the refrigerant, seek medical advice.
- Page 6 Regulations (directives, laws, standards) ▶ Observe the national regulations, stand- ards, directives, ordinances and laws. Installation and maintenance instructions 0020213395_04...
- Page 7 – Notes on the documentation With well water heat source: Ground water module (4) The heat pump system generates heat for heating installa- Observing other applicable documents tions and in domestic hot water generation by extracting the ▶ thermal energy from a heat source circuit and releasing this Always observe all the operating and installation instruc- into the heating circuit via the internal refrigerant circuit.
- Page 8 again. The brine pump transports the hot brine into the earth, Heating circuit Evaporator where the heat energy is dissipated. Compressor Electronic expansion valve During the installation, it may be useful to exclude some Refrigerant circuit Condenser rooms (e.g. the bathroom) from the cooling function and to Brine circuit Heating/cylinder char- actuate isolation valves especially for this.
- Page 9 Safety devices The fault counter is reset if both of the following conditions are met: 3.3.1 Frost protection function – Heat requirement without switching off prematurely The frost protection function for the system is controlled via – 60 minutes of uninterrupted operation the system control.
- Page 10 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 ves- source (cold brine, B) sel connection Connection: From the Heating return heat source to the heat Heating flow pump (hot brine, A) Recessed handles and...
- Page 11 Barcode with serial number, 7th to 16th digits = product Benchmark article number Vaillant is a licensed member of the Benchmark Scheme. Read the instructions Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers are...
- Page 12 Selecting the installation site ▶ Select a dry room that is frost-proof throughout and in which the permissible environmental temperature is neither above nor below the permitted range. – Permissible environmental temperature: 7 to 25 ℃ – Permissible relative air humidity: 40 to 75 % ▶...
- Page 13 Dimensions 90 115 115 90 0020213395_04 Installation and maintenance instructions...
- Page 14 Minimum clearances Danger! Risk of injury when transporting due to the carrying straps breaking away. The carrying straps may break away during transport if the front casing is fitted. ▶ Remove the front casing before you use the carrying straps. To transport the unit safely, use the two carrying straps on the two front feet of the product.
- Page 15 Installing the product Removing the front casing 0-10 mm Remove the front flap on the control panel by taking hold of the recessed handles with both hands and lift- ▶ ing off the front flap towards you. Orientate the product horizontally by adjusting the ad- justable feet.
- Page 16 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 Note volumes are involved. Vaillant recommends that you install the Vaillant heat pump brine filling unit (not re- ▶ Insert a magnetic filter to protect the pump quired when installing the ground water inside the product.
- Page 18 Hydraulic wiring in the system Provided the national regulations and technical rules do not stipulate more stringent requirements, the following applies: 6.4.1 Installing heating circuits with direct You must treat the filling and supplementary water in the connection following cases Install the hydraulic components in accordance with –...
- Page 19 Close the filling/draining valve for the heating circuit. sponsible authorities. Purge the heating circuit at the locations provided for Only the brine fluids named here are authorised by Vaillant this. for operating the heat pump; operating the heat pump with Purge the heating pump using the heating pump's other fluids, e.g.
- 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 heat Decrease the output of the filling pump to reduce the sources: amount of air entering the brine circuit.
- Page 21 – 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 junc- Risk of death from electric shock caused tion 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 Electronics 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). (→ Appendix C) 8.4.2 Connecting the blockable power supply for the back-up heater ▶ Connect the power supply to the X102 power supply.
- Page 23 The X200 (2) connection for the optional VR 11 temperature sensors, which are available as accessories, is labelled RR for return connections and VV for flow connections. ▶ Connect a cut-off relay for the external well pump to the X143 connection. –...
- Page 24 Power supply PCB Note The total current consumption of all connected external consumers (including X141, X143, X144, X145) must not exceed 2.4 A. X102 X101 X120 X145 X143 X144 X141 X105 X20A X750 X201 X131 X200 X203 X202 X104 X142 X140 [X102] Power supply for internal electric back-up [X201] (not used)
- Page 25 Control PCB X100/S20 X100/S21 X100/BUS [X23] EEV connection (electrical expansion valve) [X20] Data connection to power supply PCB and power supply for the in-rush current limiter [X40] VR40 edge connector (electrical lines) [X14] Circulation pump connection [X51] Edge connector for display connection [X15] Connection for internal 3-port valve for do- [X30] eBUS connection/diagnostics interface mestic hot water (DHW)
- Page 26 Connection terminals 8.7.1 X100/S21 ESC contact 30 mm max. A potential-free normally open contact with a breaking capa- city of 24 V/0.1 A. The function of this contact must be con- To prevent short circuits if a strand accidentally comes figured in the system control, e.g.
- Page 27 8.14 Checking the electrical installation Starting up the heat pump system After the installation is complete, check the electrical installation to ensure that the connections that have been established are secured properly and are suffi- ciently insulated. Install the cover of the electronics box. (→ Section 8.2) 8.15 Completing installation 8.15.1 Fitting the casing...
- Page 28 Running the installation assistants Output levels for the 230 V auxiliary electric heating (when connecting three separate phases; see Appendix B): The installation assistant is launched when the heat pump is – 7 kW switched on for the first time. –...
- Page 29 The following shall always apply for operation: pump because the pump speed is adjusted to the hydraulic resistance of the system. Vaillant recommends that you – Minimum running time: 3 minutes retain this setting.
- Page 30 10.2.2 Remaining feed head of building circuit 10.2.2.3 Remaining feed head pump for VWF 11x/4 building circuit pump at nominal volume flow 10.2.2.1 Remaining feed head for VWF 5x/4 building circuit pump at nominal volume flow Air heat source Remaining feed head in hPa (mbar) Ground heat source Air heat source...
- Page 31 10.3 Setting the flow temperature in heating mode Ground water heat Remaining feed head in source hPa (mbar) (with no control connected) Pump output in % Activate manual operation. – Menu → Installer level → Configuration → Enable 10.2.4.2 Remaining feed head for VWF 8x/4 limp home mode environment circuit pump at nominal Press...
- Page 32 11.2 Checking fault codes Characteristic values, internal temperature sensors (refrigerant circuit) (→ Appendix J) The display shows a fault code F.xxx. A plain text display Characteristic values for the VRC DCF outdoor temperature explains the displayed fault code. sensor (→ Appendix K) Fault codes have priority over all other displays.
- Page 33 12.3 Checking maintenance messages No. Work Inspection Main- (every year, tenance If the symbol is shown in the display, the product requires within 24 (every maintenance work or the product is in the comfort protection months at mode. the latest) years) ▶...
- Page 34 15 Customer service For contact details for our customer service department, you can write to the address that is provided on the back page, or you can visit www.vaillant.co.uk. Installation and maintenance instructions 0020213395_04...
- Page 35 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 vessel connec- Compressor tion Heating pump Circulation connection Brine pump...
- Page 36 Evaporator TT17 Electronic expansion valve outlet temperature sensor Evaporator for intermediate injection TT20 Heating return temperature sensor Electric back-up 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 37 Circuit diagram GN/YE GN/YE GN/YE GN/YE BN GY GN/YE Cylinder temperature sensor connection To the 3-port diverter valve (heating/cylinder char- ging diverter valve) X15 internal 3-port diverter valve To the electric back-up heater X13 internal brine pump To the safety cut-out for the electric back-up heater X16 internal heating pump Power supply to the electric back-up heater, to the X11 internal 4-port diverter valve...
- Page 38 Power supply 1~/N/PE 230 V (wiring 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 electric back-up heater X101 Mains connection for compressor Continuous power supply X102 Power supply for internal electric back-up heater This wiring corresponds to its as-delivered condition.
- Page 39 Installer level overview Setting level Values Unit Increment, select, ex- Factory setting Setting planation Min. Max. Installer level → Enter code 1 (competent person code 17) Installer level → Fault list → Deleting F.086 – F.1120 Installer level → Test menu → Statistics → Compressor hours Current value Compressor starts...
- Page 40 Setting level Values Unit Increment, select, ex- Factory setting Setting planation Min. Max. T.14 Env. circuit pump power T.16 Cooling mixer position (for Closes Opens Closes, Stops, Opens Stops passive cooling only) T.17 Well pump Off, On Refrigerant circuit actuators T.32 4-way valve (for active Open Closed...
- Page 41 Setting level Values Unit Increment, select, ex- Factory setting Setting planation Min. Max. T.127 High pressure bar (abs) ℃ T.128 Condensation temperat- T.129 Low pressure bar (abs) ℃ T.130 Evaporation temperature K T.131 Superheating target value K T.132 Superheating actual value to 20 K are normal op- erating parameters...
- Page 42 Setting level Values Unit Increment, select, ex- Factory setting Setting planation Min. Max. ℃ Freeze protection Ground-to- Ground-to-brine: brine: -14 Well: +2 Well: +2 Env. circuit type Current value Ground-to-brine Well Enable emerg. mode Off, On Cooling technology No cooling On-site No cooling pass.
- Page 43 Setting level Values Unit Increment, select, ex- Factory setting Setting planation Min. Max. Check program: Purge building Test not Test act- Test not active, Test Test not active circuit active active Check program: Purge environ- Test not Test act- Test not active, Test Test not active ment circuit active...
- Page 44 Status code Meaning S.202 Check program: Purging of building cir- cuit active S.203 Actuator test active Displays relating to communication S.211 Connection error: Disp. not recognised S.212 Connection error: Contr. not recognised S.215 Connection error: TMB not recognised S.216 Connection error: ICL not recognised Displays relating to the environment circuit S.242 Environment circuit: Outlet temperature...
- Page 45 Maintenance messages Remedy Code Meaning Cause – – M.32 Building circuit: Pressure low Pressure loss in the building circuit Check the building circuit for leaks, due to leakages or air pockets top up with heating water and purge – – Building circuit pressure sensor is Check the plug contact on the PCB defective...
- Page 46 Remedy Code Meaning Cause – – F.520 Sensor fault: Building circuit flow Sensor not connected or sensor in- Check the sensor, and replace if temp. put has short-circuited necessary – Replace the cable harness – – F.532 Building circuit: Flow rate too low Stopcock was not opened Check the stopcocks, thermostatic valves, bypass valve and dirt filter...
- Page 47 Remedy Code Meaning Cause – – F.710 Env. circuit: Outlet temp. too low Environment circuit pump defective Check the flow rate in the environ- ment circuit – Temperature sensor for environment – circuit outlet defective Check the quality of the plug contact on the PCB and on the cable har- –...
- Page 48 Remedy Code Meaning Cause – – F.724 Sensor fault: Fan unit 1 fan inlet Sensor not connected or sensor in- Check the sensor in the fan unit, and temp. put has short-circuited replace if necessary – Replace the cable harness in the fan F.725 Sensor fault: Fan unit 1 brine flow unit...
- Page 49 Remedy Code Meaning Cause – – F.737 Condensation temperature too Temperature in the building circuit Check the EEV (does the EEV high (heating mode) or environment cir- move to the limit stop? Use the cuit (cooling mode) too high for com- sensor/actuator test) pressor operation –...
- Page 50 Remedy Code Meaning Cause – – F.788 Building circuit: Pump fault The electronics system of the high- Switch the heat pump off for at least efficiency pump has detected a 30 seconds (no current) fault (e.g. dry running, blockage, – Check the quality of the plug contact overvoltage, undervoltage) and has on the PCB...
- Page 51 Characteristic values, external cylinder temperature sensor Temperature (°C) Resistance (ohms) 14947 11430 8818 6856 5373 4242 3373 2700 2176 1764 1439 1180 973.7 807.5 673.2 563.9 474.6 401.3 340.8 290.6 248.8 213.9 184.6 160.0 Characteristic values, internal temperature sensors (refrigerant circuit) Temperature (°C) Resistance (ohms) 327344...
- Page 52 Temperature (°C) Resistance (ohms) 2084 1753 1481 1256 1070 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 0020213395_04...
- Page 53 Commissioning Checklist Benchmark Commissioning & Warranty Validation Service Record It is a requirement that the heat pump is installed and commissioned to the manufacturers’ instructions and the data fields on the commissioning checklist completed in full. To instigate the warranty the heat pump needs to be registered with the manufacturer within one month of the installation.
- Page 54 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 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 Commissioning Checklist Benchmark Commissioning & Warranty Validation Service Record It is a requirement that the heat pump is installed and commissioned to the manufacturers’ instructions and the data fields on the commissioning checklist completed in full. To instigate the warranty the heat pump needs to be registered with the manufacturer within one month of the installation.
- Page 57 AIR TO WATER HEAT PUMP COMMISSIONING CHECKLIST Address: Heat Pump make and model: Heat Pump serial number: Commissioned by (PRINT NAME): Certified Operative Reg number (1): Company name: Telephone number: Company email: Company address: Commissioning date: Heating and hot water system complies with the appropriate Building Regulations? DNO notification? Building Regulations Notification Number (if applicable) (2) MCS installer registration Number (if applicable)
- Page 58 ADDITIONAL SYSTEM INFORMATON (Tick the appropriate boxes/Measure and Record) Water flow rate setting of the heat pump at commissioning (l/min): Additional heat sources connected: Gas Boiler Oil Boiler Electric Heater Solar Thermal Other: ALL INSTALLATIONS All electrical work complies with the appropriate Regulations The heat pump and associated products have been installed and commissioned in accordance with the manufacturer’s instructions The operation of the heat pump and system controls have been demonstrated to and understood by the customer The manufacturer’s literature, including Benchmark Checklist and Service Record, has been explained and left with the customer...
- Page 59 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. Always use the manufacturer’s specified spare part when replacing controls.
- Page 60 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. Always use the manufacturer’s specified spare part when replacing controls.
- Page 61 Check conditions for determining the performance data in accordance with EN 14511 Application for the ground and ground water heat sources Building circuit (heat distribution side in heating mode) Setting the building circuit pump: Menu → Installer level → Configuration → Conf. heat. build. pump Adjust the value from Auto to 100%.
- Page 62 VWF 57/4 230 V VWF 87/4 230 V VWF 117/4 230 V Measuring current L1 & L2 for the com- 16.6 A 23.8 A 29.6 A pressor and electronics plus maximum 1.3 A at X12 VR 40, maximum 0.9 A at X14 circulation pump and maximum 2.5 A at TB X141, X143, X144 and X145 (L1 = L2) (connection diagram 2)
- Page 63 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 circuit 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 Refrigerant type...
- Page 64 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) (0.30 bar)
- Page 65 Application limits for the heat pump: Heating (heat source = brine) – At the same volume flow rates in the heating circuit (ΔT 5 K or ΔT 8 K) and the brine circuit (ΔT 3 K). Operation of the pump outside the application limits results in the heat pump being switched off by the internal control and safety devices. –...
- Page 66 VWF 57/4 230 V VWF 87/4 230 V VWF 117/4 230 V Effective power consumption for 1.97 kW 3.07 kW 4.07 kW W10/W55 ΔT 8 K Coefficient of performance W10/W55 ΔT 3.29 3.33 3.38 8 K/EN 14511 Sound power level W10/W35 43.3 dB(A) 46.9 dB(A) 50.0 dB(A)
- Page 67 Rated 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 11,9...
- Page 68 The rated current for the VWF 5X/4 heat pump with a nominal heat output of 5 kW is 23.9 A if connected in accordance with wiring diagram 1 in compressor mode with the electric back-up heater activated and an output of 5.5 kW enabled on L1; with all possible accessories connected to connections X12 to X145, it is 23.9 A.
- Page 69 Index eBUS lines, routing.............. 21 Electric back-up heater, circuit breaker ....... 32 Accessory, optional, connecting.......... 26 Electrical installation, checking..........27 Actuator test ................ 32 Electricity ................4 Article number ..............11 Environment circuit pump, remaining feed head ....30 Environment circuit pump, setting ........30 Basic diagram................
- Page 70 Pump blocking protection ............9 Purging, brine circuit............20 Purging, building circuit ............28 Purging, environment circuit..........28 Qualification................4 Rear view ................10 Refrigerant................5 Refrigerant circuit cover, removing........16 Refrigerant, disposing of ............. 34 Regulations ................6 Remaining feed head, building circuit pump ....... 30 Remaining feed head, environment circuit pump ....
- Page 72 Supplier Vaillant Ltd. Nottingham Road Belper Derbyshire DE56 1JT Telephone 0330 100 3143 info@vaillant.co.uk www.vaillant.co.uk 0020213395_04 Publisher/manufacturer Vaillant GmbH Berghauser Str. 40 D-42859 Remscheid Tel. +49 2191 18 0 Fax +49 2191 18 2810 info@vaillant.de www.vaillant.de © These instructions, or parts thereof, are protected by copyright and may be reproduced or distributed only with the manufacturer's written consent.