1 Safety Safety Intended use also covers installation in ac- cordance with the IP code. 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.
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Safety 1 Before commencing work on the product: can cause malfunctioning and pose safety risks during operation. ▶ Disconnect the product from the power ▶ Ensure that the heating installation is in a supply by switching off all power supplies at all poles (electrical partition with a con- technically perfect condition.
1 Safety 1.3.13 Risk of environmental damage caused by refrigerant The product contains a refrigerant with con- siderable GWP (GWP = Global Warming Po- tential). ▶ Ensure that the refrigerant does not es- cape into the atmosphere. ▶ If you are a competent person who is qual- ified to work with refrigerants, you must wear appropriate protective equipment when servicing the product, and access...
Notes on the documentation 2 Notes on the documentation System overview Observing other applicable documents Heat pump system design ▶ You must observe all the operating and installation in- structions included with the system components. Storing documents ▶ Pass these instructions and all other applicable docu- ments on to the system operator.
3 System overview take place via circulation reversal. The heat pump can be Functionality connected to three different types of heat source. This in- 3.2.1 Heat pump cludes the outdoor air, geothermal energy and ground water, whereby the heat source is connected to the heat pump via a transfer station.
System overview 3 in the evaporator must have a lower temperature than the 3.2.2 Weather-compensated system control heat source. On the other hand, the temperature of the refri- The heat pump system is equipped with a weather-com- gerant in the condenser must be higher than that of the heat- pensated system control that provides heating, cooling and ing water in order to be able to release the thermal energy to domestic hot water mode depending on the control type and...
4 Product description 3.3.8 Safety cut-out (SCO) in the heating circuit sible shortage of fluid. If the fluid pressure falls below the minimum pressure, an analogue pressure sensor switches If the temperature in the heating circuit of the internal elec- off the heat pump and switches the other modules, where tric back-up heater exceeds the maximum temperature, the these exist, to standby mode.
Product description 4 Information on the data plate The main data plate is attached behind the front casing on the front cover of the refrigerant circuit. Information on the data plate Meaning Rated voltage of the com- pressor Rated voltage of the pumps and control Back-up heater rated voltage P max...
5 Set-up Set-up Information on the data plate Meaning Read the instructions Checking the scope of delivery Carefully remove the packaging and padding without Tested for safety by the damaging the parts of the product. Verband deutscher Elektro- techniker (German Associ- Check that the scope of delivery is complete.
5 Set-up ▶ Minimum clearances Once the product has been started up, cut off the carrying straps. 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. ▶...
Set-up 5 Installing the product 0-10 mm Turn the four screws by a quarter turn and lift off the cover on the operator control panel towards you. ▶ Orientate the product horizontally by adjusting the ad- justable feet. Removing the carrying straps ▶...
6 Carrying out the hydraulics installation Carrying out the hydraulics installation Note You can find the basic system diagrams in the → basic system diagram book. If you want to carry out active cooling using ground as the heat source, make sure that the borehole/ground collector is suitable for this purpose and observe the national directives and laws.
Note filter into account when making your se- Vaillant recommends that you install the lection. Vaillant heat pump brine filling unit (not ▶ required when installing the ground water You must position the filter in direct prox- module). By doing this, it is then possible to imity to the return line to the heat pump.
7 Filling and purging the installation Filling and purging the installation Applicability: Austria OR Germany Filling and purging the heating circuit OR Switzerland 7.1.1 Checking and treating the heating Total water/filling and supplementary water Water hardness at specific system volume heating >...
11. Purge the heating pump using the heating pump's drain Only the brine fluids named here are authorised by Vaillant screw. for operating the heat pump; operating the heat pump with 12. Then check the heating installation pressure again (if other fluids, e.g.
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In the event of special requirements, the following heat trans- Allow the filling pump (67) to run for at least 10 minutes fer medium is also authorised by Vaillant for the ground heat in order to fill and rinse the circuit sufficiently.
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.
8 Electrical installation Electronics box 8.4.1 Connecting the continuous power supply 3~/N/PE 400 V ▶ Connect the continuous power supply to the mains con- nection (X101). (→ Page 36) 8.4.2 Connecting the dual-circuit power supply special tariff – 3~/N/PE 400 V Remove the bypass line from X103 to X102 which was installed at the factory.
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Electrical installation 8 – 8.4.8 Connecting the temperature sensor for Rated voltage of external brine pressure switch: 230 V 50 Hz an external domestic hot water cylinder – Power range for external brine pressure switch (rms): (optional) 1 … 5 mA 8.4.6 Connecting a limit thermostat In some cases where the underfloor heating has a direct...
8 Electrical installation Power supply PCB Note The total current consumption of all connected external consumers (including X141, X143, X144, X145) must not exceed 2.4 A. X110B X110A X110 X120 X102 X101 X143 X145 X103 X144 X141 X105 X20A X750 X201 X200 X131...
Electrical installation 8 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)
8 Electrical installation 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.
Start-up 9 8.14 Completing installation Starting up the heat pump system 8.14.1 Fitting the casing Fit the side casings and screw in the screws. Place the top casing on the side casings and slide it back into the recesses provided for this in the back panel.
If this temperature is ex- ceeded (> 40 °C), active cooling mode is switched off. This 9.3.8 Ending the installation assistant limit can only be changed by Vaillant Customer service. ▶ Once you have run through the installation assistant suc- cessfully, confirm by pressing 9.3.4...
The larger the preset negative numerical pump because the pump speed is adjusted to the hydraulic value, the longer the periods for which the compressor oper- resistance of the system. Vaillant recommends that you ates or does not operate. retain this setting.
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10 Adapting the unit to the heating installation 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)
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Adapting the unit to the heating installation 10 10.2.2.5 Remaining feed head for VWF 19x/4 Groundwater heat Pump output in % source building circuit pump at nominal flow Remaining feed head in hPa (mbar) 10.2.4.2 Remaining feed head for VWF 8x/4 environment circuit pump at nominal flow Air heat source Remaining feed head in...
11 Troubleshooting – Max. heating mode target flow temperature: 75 ℃ 10.2.4.4 Remaining feed head for VWF 15x/4 environment circuit pump at nominal flow Confirm this change by pressing (OK). 10.4 Setting the flow temperature in cooling mode (with no control connected) Activate manual operation.
Inspection and maintenance 12 11.3 Querying the fault memory 11.8 Electric back-up heater circuit breaker Menu → Installer level Fault list A circuit breaker is used to secure the internal electric back- up heater against short circuits. If the circuit breaker has The product has a fault memory.
12 Inspection and maintenance 12.3 Checking maintenance messages 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.
Der flächendeckende Kundendienst für ganz Österreich ist Observe the requirements for the installation site re- täglich von 0 bis 24 Uhr erreichbar. Vaillant Kundendienst- garding frost protection. (→ Page 12) techniker sind 365 Tage für Sie unterwegs, sonn- und feier- tags, österreichweit.
Appendix Appendix Unblocked power supply 3~/N/PE 400 V (wiring diagram 1 = X110B L2 L1 L1 L2 X102 X101 X110 X110A X103 L1 L2 Power supply for internal auxiliary electric heating X101 Mains connection for compressor Power supply for control system X103 Optional power output for internal auxiliary electric heating (X102)
Appendix Dual-circuit power supply special tariff A – 3~/N/PE 400 V (wiring diagram 2 = L2 L1 L1 L2 X102 X101 X110 X110A X110B X103 Continuous power supply for internal auxiliary elec- X101 Mains connection for compressor tric heating X103 Optional power output for internal auxiliary electric Power supply for control system heating (X102)
Appendix Dual-circuit power supply special tariff B – 3~/N/PE 400 V (wiring diagram 3 = X110B L2 L1 L1 L2 X102 X101 X110 X110A X103 Blocked power supply for internal auxiliary electric X101 Mains connection for compressor heating X103 Optional power output for internal auxiliary electric Continuous power supply for control system heating (X102) Blocked power supply...
Appendix Dual-circuit power supply heat pump tariff – 3~/N/PE 400 V (wiring diagram 4 = X110B L2 L1 L1 L2 X102 X101 X110 X110A X103 Blocked power supply for internal auxiliary electric X101 Mains connection for compressor heating X103 Optional power output for auxiliary heating (X102) Power supply for control system X102 Mains connection for internal auxiliary electric heat-...
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Appendix Setting level Values Unit Increment, select, ex- Default setting Setting planation Min. Max. Build. pump hours Current value Build. pump starts Current value Environ. pump hours Current value Environm. pump starts Current value 4-way valve hours Current value 4-way valve switch. Current value Fan 1: Hours Current value...
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Appendix Setting level Values Unit Increment, select, ex- Default setting Setting planation Min. Max. T.17 Well pump Off, On T.18 Fan 1: Power (for the air/brine environment circuit type only) T.19 De-icer 1: (for the air/brine Off, On environment circuit type only) T.20 Fan 2: Power (for the air/brine environment circuit type only)
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Appendix Setting level Values Unit Increment, select, ex- Default setting Setting planation Min. Max. −40 ℃ T.105 Air inlet temp. Fan unit 1: (for the air/brine environment circuit type only) −40 ℃ T.106 Brine outlet temp. Fan unit 1: (for the air/brine environment circuit type only) T.107 Safety cut-out Fan unit 1: Closed...
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Appendix Setting level Values Unit Increment, select, ex- Default setting Setting planation Min. Max. Conf. cool. build. pump Auto Auto Conf. DHW build. pump Auto Auto Reset anti-cycl. time Anti-cycl. time after pow. supp. switch-on Im. heater outp. range External 400 V 3 phases –...
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Appendix Setting level Values Unit Increment, select, ex- Default setting Setting planation Min. Max. Cooling technology No cool- On-site No cooling pass. Active cooling cooling On-site pass. cooling On-site pass. cooling Device Specific No. Current value VWF 5x/4 = 40 VWF 8x/4 = 41 VWF 11x/4 = 42 VWF 157/4 = 43...
Appendix Setting level Values Unit Increment, select, ex- Default setting Setting planation Min. Max. Check program: Purge environ- Test not Test act- Test not active, Test Test not active ment circuit active active Contact details Telephone num- Phone number 0 - 9 Empty End the installation assistant? Yes, back...
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Appendix Explanation/indicator in the heat pump Status code display S.212 Connection error: Controller not recog- nised S.213 Connection error: Fan 1 not recognised S.214 Connection error: Fan 2 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...
Appendix Explanation/indicator in the heat pump Status code display S.240 Compr. oil temp. too low, environment too cold Displays relating to the electric back-up heater circuit S.350 Immersion heater: Safety cut-out open S.351 Immersion heater: Flow temp. too high S.352 Immersion heater: Pressure too low S.353 Immersion heater: Flow rate too low...
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Appendix Remedy Code Meaning Cause – – F.520 Sensor fault: Building circuit flow Sensor not connected or sensor Check the sensor, and replace if temp. input has short-circuited necessary – Replace the cable harness – – F.532 Building circuit: Flow rate too low Stopcock was not opened Check the stopcocks and thermo- static valves...
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Appendix Remedy Code Meaning Cause – – F.714 Environment circuit: Pressure too Pressure loss in the environment Check the environment circuit for circuit due to leakages or air pockets leaks – – Environment circuit pressure sensor Top up the medium (brine/water), defective purge –...
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Appendix Remedy Code Meaning Cause – F.732 Compressor outlet temperature The compressor outlet temperature is Check the low-pressure sensor, too high above 130 °C: compressor inlet sensor and outlet sensor – Application limits exceeded – Check the EEV (does the EEV –...
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Appendix Remedy Code Meaning Cause – – F.743 Building circuit: Return temp. too Return temperature in the building Cooling: Check that the four-way high circuit too high for the compressor to valve functions correctly start – Check the sensors Heating: –...
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Appendix 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, –...
Appendix Remedy Code Meaning Cause – – F.1119 Compressor: ICL fault In-rush current limiter defective or Check all plug contacts incorrectly connected – Check the ICL compressor connec- – Mains voltage too low tion – Check the ICL controller PCB con- nection –...
Appendix Circuit diagram GN/YE BN BK GY BU GN/YE GN/YE GN/YE Connection for VR 10 cylinder temperature sensor 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...
Appendix 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%.
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Appendix VWF 57/4 VWF 87/4 VWF 117/4 VWF 157/4 VWF 197/4 Max. electrical power consumption of 9 kW 9 kW 9 kW 9 kW 9 kW auxiliary heater EN 60529 level of protection IP 10B IP 10B IP 10B IP 10B IP 10B Hydraulics VWF 57/4...
Appendix VWF 57/4 VWF 87/4 VWF 117/4 VWF 157/4 VWF 197/4 Max. electrical power consumption, heat- 63 W 63 W 63 W 140 W 140 W ing pump Heating pump type High-efficiency High-efficiency High-efficiency High-efficiency High-efficiency pump pump pump pump pump Refrigerant circuit VWF 57/4...
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Appendix VWF 57/4 VWF 87/4 VWF 117/4 VWF 157/4 VWF 197/4 Brine circuit pump electrical power con- 44 W 62 W 64 W 83 W 121 W sumption for B0/W35 ΔT 3 K with an ex- ternal pressure loss of 250 mbar in the brine circuit Brine fluid type Ethylene glycol...
Appendix 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) as for the nominal heat output test under standard nominal conditions.
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