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Appendix

0020291544_01 Hydraulic Station Installation and maintenance instructions

VWZ MEH 97/6

Sound power A35/W7 in accord-
ance with EN 12102 / EN 14511 L

in cooling mode

≤

29 dB(A)

Sound power A35/W18 in accord-
ance with EN 12102 / EN 14511 L

in cooling mode

≤

30 dB(A)

Technical data

–

Electrics

VWZ MEH 97/6

Rated voltage

230 V (+10%/-15%),

50 Hz, 1~/N/PE

Rated voltage

400 V (+10%/-15%),

50 Hz, 3~/N/PE

Rated power, maximum

8.6 kW

Rated current, maximum, 230 V

2.6 A

Rated current, maximum, 400 V

13.6 A

Overvoltage category

Fuse type, 230 V

C characteristics, slow-

blow

Fuse type, 400 V

C characteristics (slow-

blow), 3-pole switching

Содержание uniTOWER plus VIH QW 190/6 E GB

Страница 1: ...Operating instructions Hydraulic Station VWZ MEH 97 6 Publisher manufacturer Vaillant GmbH Berghauser Str 40 D 42859 Remscheid Tel 492191 18 0 Fax 492191 18 2810 info vaillant de www vaillant de ...

Страница 2: ...u display 7 4 4 Starting up the product 8 4 5 Setting the heating flow temperature 8 4 6 Setting the domestic hot water temperature 8 4 7 Switching off the product s functions 9 5 Care and maintenance 9 5 1 Caring for the product 9 5 2 Maintenance 9 5 3 Reading maintenance messages 9 5 4 Checking the system pressure 9 6 Troubleshooting 9 6 1 Reading fault messages 9 6 2 Detecting and eliminating f...

Страница 3: ...beyond that specified in this document shall be considered improper use Any direct commercial or industrial use is also deemed to be improper Caution Improper use of any kind is prohibited 1 2 General safety information 1 2 1 Danger caused by improper operation Improper operation may present a danger to you and others and cause material damage Carefully read the enclosed instructions and all other...

Страница 4: ...pplied with the product and that you have signed it to say that you have received a full and clear explana tion of its operation The installer is leg ally required to complete a commissioning checklist as a means of complying with the appropriate Building Regulations England and Wales All installations must be notified to Local Area Building Control either directly or through a Competent Persons S...

Страница 5: ...GB 3 Product description 3 1 Heat pump system Design of a typical heat pump system with monoblock tech nology 1 2 4 3 5 6 1 Heat pump outdoor unit 2 eBUS line 3 System control option al 4 Heat pump indoor unit 5 Monovalent domestic hot water cylinder 6 Heating circuit 3 2 Design of the product 2 3 1 1 Optional installation site for the system control 2 Reset button 3 Control elements 3 3 Control e...

Страница 6: ... in door unit The dashed lines show the permitted range Displayed statically Filling pressure in the permitted range Displayed flashing Filling pressure outside of the permitted range Noise reduction mode Operation with reduced sound emissions Electric back up heater Displayed flashing Electric back up heater in operation Displayed together with the Heating mode symbol Electric back up heater acti...

Страница 7: ...If the heating flow temperature of the outdoor unit falls below 4 C the compressor is switched on in order to increase the heating flow temperature 3 9 4 Pump blocking protection This function prevents the pumps for heating water from sticking The pumps which were out of operation for 23 hours are switched on for 10 20 seconds one after the other 3 9 5 Safety cut out SCO in the heating circuit If ...

Страница 8: ...valves etc 4 4 4 Displaying the Live Monitor Menu Live Monitor You can use the Live Monitor to view the current status of the product 4 4 5 Displaying the building circuit pressure Menu Live Monitor Building circuit pressure You can use this function to display the current filling pres sure in the heating installation 4 4 6 Reading the operating statistics Menu Information Heating op hours Menu In...

Страница 9: ...c ted comfort 5 4 Checking the system pressure 1 Check the filling pressure of the heating installation every day for a week after initial start up and mainten ance work and then twice a year Min heating circuit operating pressure 0 07 MPa 0 70 bar 2 Use Menu Live Monitor Water pressure to display the filling pressure 3 Inform your competent person so that they can add heating water and increase t...

Страница 10: ...proved at the time by the Health and Safety Executive un dertake the work in compliance with safe and satisfactory standards Installers should also be fully conversant with and competent with all necessary electrical and building regula tions that may apply to the installation In addition all unvented domestic hot water cylinders must be installed by a competent person to the prevailing build ing ...

Страница 11: ...isplay Right hand selection button Room temperature setpoint Current value Manual cooling demand Basic display Left hand selection button Domestic hot water cylinder tar get temperature Current value Domestic hot water cylinder ac tual temperature Current value Yield indicator Energy yield Day Heating Cumulative value kWh Energy yield Day Domestic hot water Cumulative value kWh Energy yield Day Co...

Страница 12: ...nal components connec ted as supplied Compressor modulation Current value Air inlet temperature Current value Immersion heater power Current value kW External current anode status Current value Anode not con nected Outdoor temperature Current value Information Contact details Phone number Serial number Permanent value Operating hours total Cumulative value h Hours heating Cumulative value h DHW op...

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Страница 16: ...rbyshire 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 Subject to technical modifications 0020291544_01 ...

Страница 17: ...lation and maintenance instructions Hydraulic Station VWZ MEH 97 6 Publisher manufacturer Vaillant GmbH Berghauser Str 40 D 42859 Remscheid Tel 492191 18 0 Fax 492191 18 2810 info vaillant de www vaillant de ...

Страница 18: ...ing 32 6 15 Connecting the outdoor temperature sensor 32 6 16 Connecting the domestic hot water cylinder s temperature sensor 32 6 17 Connecting the external prioritising diverter valve optional 32 6 18 Connecting the VR 70 VR 71 mixer module 32 6 19 Connecting cascades 32 6 20 Closing the electronics box for the power supply PCB 32 6 21 Checking the electrical installation 32 7 Operation 33 7 1 O...

Страница 19: ...diagram 42 C Control PCB 43 D Basic connection diagram for the energy supply company lockout shutdown via connection S21 44 E Basic connection diagram for the energy supply company lockout shutdown via partition 45 F Installer level overview 46 G Status codes 50 H Maintenance messages 52 I Comfort protection mode 52 J Fault codes 53 K 5 4 kW back up heater at 230 V and at 400 V 57 L Inspection and...

Страница 20: ...nce instructions for the product and any other system com ponents installing and setting up the product in ac cordance with the product and system ap proval compliance with all inspection and main tenance conditions listed in the instruc tions Intended use also covers installation in ac cordance with the IP code Any other use that is not specified in these instructions or use beyond that specified...

Страница 21: ...1 3 8 Material damage due to unsuitable installation surface The installation surface must be even and have sufficient load bearing capacity to sup port the operating weight of the product An uneven installation surface may cause leaks in the product There is a risk of death if the connections are subject to leaks Make sure that the product is positioned flush against the installation surface Ensu...

Страница 22: ...oduct guarantees limited frost protection for the heating circuit At negative outdoor temperatures there is an increased risk of the heating water freezing if a heat pump fault occurs e g due to a power cut or a defective compressor 3 2 2 Low water pressure protection This function continuously monitors the pressure of the heat ing water in order to prevent a possible loss of heating wa ter If the...

Страница 23: ...3 4 5 6 7 1 Manometer 2 Expansion relief valve 3 Building circuit return 4 Building circuit flow 5 Domestic hot water cylinder return 6 Domestic hot water cylinder flow 7 Prioritising diverter valve heating cir cuit cylinder charging 8 Electric back up heater 9 Safety cut out 10 Automatic air vent 3 3 3 Underside of the product 1 6 5 4 3 2 7 1 Drain for expansion relief valve 2 Building circuit re...

Страница 24: ...Heating flow domestic hot water cylinder Symbol Connection Heating return domestic hot water cylin der 3 6 CE marking The CE marking shows that the products comply with the basic requirements of the applicable directives as stated on the declaration of conformity The declaration of conformity can be viewed at the manufac turer s site 3 7 Cooling mode Depending on the country the heat pump outdoor ...

Страница 25: ...acity to bear the weight of the product Ensure that the pipes are routed appropriately Do not install the product above another unit that may damage it e g above a cooker that produces water va pour and grease or in a room with a high level of expos ure to dust or in a corrosive environment Do not install the product below a unit from which liquids may flow 4 4 Dimensions 440 220 220 184 116 2 64 ...

Страница 26: ... the following components preferably from the manufacturer s accessories An expansion relief valve a stopcock and a mano meter on the heating return A domestic hot water safety assembly and a stopcock on the cold water supply A stopcock on the heating flow Check whether the volume of the installed expansion vessel is sufficient for the heating system If required in stall an additional expansion ve...

Страница 27: ...ng return 1 2 Connect the domestic hot water cylinder s heating return 1 and heating flow 2 in accordance with the relevant standards 5 4 Connecting the building circuit 2 1 1 Connect the filling device with the enclosed seal to the product s heating return 1 2 2 Connect the building circuit s return 1 and flow 2 in accordance with the relevant standards 5 5 Installing the drain hose on the expans...

Страница 28: ...of the mains voltage For the mains voltage of the single phase 230 V network a tolerance of 10 to 15 must be provided For the mains voltage of the three phase 400 V network a tolerance of 10 to 15 must be provided For the voltage difference between the individual phases a tolerance of 2 must be provided 6 3 Electrical partition The electrical partitions are referred to as disconnectors in these in...

Страница 29: ...esistance of 90 C Note that commercially available power supply cables do not usually have sufficient temperature resistance 4 Connect the preinstalled power supply cable to the X300 connection with the heat pump electricity meter 5 Remove the 2 pole bridge between the X310 and X311 connections 6 Connect the additional power supply cable from the household electricity meter to the X311 connection ...

Страница 30: ...onnect the 3 pole power supply cable from the household electricity meter to the X311 connection 9 Use the strain relief clamps to secure the cables in place 6 7 Opening the power supply PCB s electronics box 1 Remove the front casing Page 26 B C A D 2 Hinge the electronics box forwards 3 Detach the four clips on the left and the right from the brackets 6 8 Establishing the power supply 2 3 4 1 1 ...

Страница 31: ...V cables and eBUS cables through the left hand strain reliefs on the electronics box 230V 3 Route 230 V cables through the right hand strain reliefs on the electronics box 6 11 Carrying out the wiring 1 Ensure that the mains voltage is correctly disconnected from the safety extra low voltage 2 Only connect power supply cables to the terminals that are marked for the purpose 3 Shorten the connectio...

Страница 32: ...oor temperature sensor to plug AF on terminal X41 on the control PCB 6 16 Connecting the domestic hot water cylinder s temperature sensor Condition No system control connected Connect a temperature sensor to the fed cable on the X22 terminal block connection terminals 19 20 on the control PCB The range of accessories includes a tem perature sensor VR 10 with corresponding mating con nector and an ...

Страница 33: ...ng water Remove a little water from the heating circuit Check the appearance of the heating water If you ascertain that it contains sedimentary materials you must desludge the installation Use a magnetic rod to check whether it contains mag netite iron oxide If you ascertain that it contains magnetite clean the in stallation and apply suitable corrosion inhibition meas ures or fit a magnetic filte...

Страница 34: ...er is connected seal the product s cylinder flow and cylinder return connection with on site plugs 4 Check all of the connections and the entire heating in stallation for leaks 5 Switch the prioritising diverter valve to manual operation Page 33 and turn the selection lever to Heating circuit domestic hot water cylinder Both valves are open and the filling procedure is improved since the air in th...

Страница 35: ... confirm by pressing Next in each case If you do not confirm the launch of the installation assistant it is closed 10 seconds after you switch on the unit and the basic display then appears If the installation assistant does not run through completely it restarts the next time the unit is switched on 8 6 1 Ending the installation assistant Once you have run through the installation assistant suc c...

Страница 36: ...you hand the product over to the end user Check that the heating installation heat generator and system and the domestic hot water pipes are leak tight Check whether the drain pipework for the purging con nections has been installed correctly 8 14 1 Checking the heating mode Start check programme P 04 8 14 2 Checking the domestic hot water generation Check whether the cylinder is purged and the do...

Страница 37: ...r with all of the Anti legionella measures in order to comply with the applicable regulations regarding legionella prevention Explain to the end user how the safety devices work and where they are located Inform the end user about all of the anti legionella meas ures Inform the end user how to handle the product Draw particular attention to the safety warnings which the end user must follow Inform...

Страница 38: ...ge 53 Check the back up heater for damage due to overheat ing Check that the power supply for the power supply PCB is working properly Check the cabling for the power supply PCB Check the cabling for the electric back up heater Check that all temperature sensors are working properly Check that all other sensors are working properly Check the pressure in the heating circuit Check that the heating c...

Страница 39: ... parts Switch off the product Disconnect the product from the power supply Secure the product against being switched back on again When working on the product protect all electric com ponents from spraying water Remove the front casing 11 5 Using check programmes You can call up the check programmes via Menu Installer level Test menu Check programme If the product is in error condition you cannot ...

Страница 40: ...tom 6 Once the heating water has completely drained from the installation close the purging valves on all the radi ators and the drain cock again 13 Decommissioning 13 1 Decommissioning the product Disconnect the product from the power grid Close the cold water stopcock Close the heating stopcock flow and return Drain the product 13 2 Recycling and disposal Disposing of the packaging Dispose of th...

Страница 41: ...ature sensor Electric back up heater output 3 Back up heater 4 Heating return to the outdoor unit 5 Heating flow from the outdoor unit 6 Heating circuit return domestic hot water 7 Heating circuit flow domestic hot water 8 Building circuit flow heating 9 Building circuit return heating 10 Expansion relief valve 3 bar 11 Prioritising diverter valve 12 Diaphragm expansion vessel ...

Страница 42: ... power supply 230 V bridge between X311 and X310 for dual power supply Replace the bridge at X311 with the 230 V connection 3 Earthing 4 X300 Power supply connection 5 Earth wire to X1 on the control PCB 6 X302 Safety cut out 7 X301 Back up heater 8 X328 Data connection to the control PCB 9 X313 Power supply for the control PCB or the op tional VR 70 VR 71 or the optional external current anode 10...

Страница 43: ... anode 5 X24 Coding resistor 3 6 X24 Coding resistor 2 7 X41 Edge connector outdoor temperature sensor DCF system temperature sensor multi function input 8 X106 S20 Limit thermostat 9 X106 S21 ESCO contact 10 X106 BUS eBUS bus connection outdoor unit VRC 700 VR 70 VR 71 11 X16 Optional Accessory intermediate heat ex changer pump 12 X15 Internal prioritising diverter valve for heating circuit cylin...

Страница 44: ... 2 2 N L1 L2 L3 5 5 BUS S21 BUS X106 L1 L1 L2 L3 N L N X300 X311 L N X310 L1 L2 L3 N L N X200 BUS X206 X210 L N X211 2 2 3 3 1 2 3 4 5 6 7 8 9 10 1 Meter fuse box 2 Household electricity meter 3 Heat pump electricity meter 4 Ripple control receiver 5 Potential free normally open contact for actuating S21 for the energy supply company lockout function 6 Disconnector circuit breaker fuse 7 System co...

Страница 45: ...311 L N X310 kWh N L1 L2 L3 kWh L1 L2 L3 N L N X200 BUS X206 X210 L N X211 BUS S21 BUS X106 L1 L1 L2 L3 N L N X300 X311 L N X310 5 5 2 2 2 2 3 3 3 3 1 2 3 4 5 6 7 8 9 10 1 Meter fuse box 2 Household electricity meter 3 Heat pump electricity meter 4 Ripple control receiver 5 Partition for the energy supply company lockout function 6 Disconnector circuit breaker fuse 7 System control 8 Indoor unit c...

Страница 46: ...r power cons Current value kWh Im heater op hours Current value h Im heater switch ops Current value No switch ops Current value Installer level Test menu Check programmes P 04 Heating mode Select P 06 Purge building circuit Select P 11 Cooling mode Select P 12 De icing Select P 27 Immersion heater Select P 29 High pressure Select Installer level Test menu Sensor actuator test T 0 01 Building circ...

Страница 47: ...123 Temperature switch Compressor outlet Open Closed Open closed T 1 02 DHW prioritising diverter valve Heating Domestic hot water Heating domestic hot water Heating T 1 44 Cylinder temperature 40 90 0 1 T 1 46 Lockout contact S20 Closed Open Closed Open Closed T 1 69 Outdoor temperature 40 90 0 1 T 1 70 System temperature 40 90 0 1 T 1 71 DCF status Current value No DCF signal Validate DCF signal...

Страница 48: ... min 1 60 Compressor hyster Heat 0 15 K Applies for heating mode only 1 7 Compressor hyster Cool 0 15 K Applies for cooling mode only 1 5 Max rem feed head 200 900 mbar 10 900 DHW mode 0 ECO 2 Bal ance 0 ECO 1 Normal 2 Balance 0 Max anti cycl time 0 9 h 1 5 Conf heat build pump 50 100 PWM Auto Auto Conf cool build pump 50 100 PWM Auto Auto Conf DHW build pump 50 100 PWM Auto 65 Reset anti cycl tim...

Страница 49: ...y settings Restore fact ory settings Yes No No Screed drying 2 Off 1 29 Off Installer level Start inst assistant Language Languages available for selection 02 English Syst control avail Yes no Yes No Im heater power supp 230 V 400 V Im heater outp range External 9 kW 230 V 1 6 1 kW 6 kW 400 V 1 9 1 kW 9 kW 6 or 9 Cooling technology No cool ing Active cooling Compr current limit 13 25 A 1 5 7 kW 13...

Страница 50: ...s outside of the operating limits S 133 Domestic hot water Prerun The start conditions for the compressor in domestic hot water mode are checked Start the other actu ators for domestic hot water mode S 134 Domestic hot water Compressor active The compressor works in order to meet the domestic hot water demand S 135 Domestic hot water Immersion heater active The immersion heater is used in domestic...

Страница 51: ...an 15 minutes the heat pump is restarted If the time for the de icing is still not sufficient after three unsuccessful restarts the heat pump is switched off and the fault mes sage F 741 is displayed Check whether sufficient thermal energy is available from the building cir cuit S 284 De icing flow temperat ure too low If the flow temperature is below 5 C the heat pump is restarted If the flow tem...

Страница 52: ... circuit Pressure low Pressure loss in the building circuit due to leakages or air pockets Building circuit pressure sensor is defective Check the building circuit for leaks top up with heating water and purge Check the plug contact on the PCB and on the cable harness check that the pressure sensor is working correctly and if required replace the pressure sensor M 200 Building circuit 2 Low pressu...

Страница 53: ...ace the cable harness F 520 Sensor fault Building circuit flow temp The sensor is not connected or the sensor input has short circuited Check and if required replace the sensor Replace the cable harness F 526 Sensor fault EEV outlet temp The sensor is not connected or the sensor input has short circuited Check and if required replace the sensor Replace the cable harness F 546 Sensor fault High pre...

Страница 54: ...temperature too low Insufficient air volume flow through the outdoor unit s heat exchanger heating mode leads to an insuffi cient energy input in the environment circuit heating mode or building cir cuit cooling mode Refrigerant volume too low If the building circuit contains ther mostatic valves check that they are suitable for cooling mode check volume flow in cooling mode Check the fan unit for...

Страница 55: ...ressor is blocked while the fault message is present F 752 Fault Frequency converter Internal electronics fault on the in verter PCB Mains voltage outside of 70 V 282 V Check the integrity of the power sup ply cables and compressor connec tion cables The plugs must audibly click into place Check the cable Check the mains voltage The mains voltage must be between 195 V and 253 V Check the phases Re...

Страница 56: ... between 195 V and 253 V F 819 Freq converter fault Overheating Internal overheating of the frequency converter Allow the frequency converter to cool and restart the product Check the frequency converter s air route Check that the fan is working cor rectly The maximum environmental tem perature of the outdoor unit 46 C has been exceeded F 820 Connection fault Building circuit pump Pump does not re...

Страница 57: ...ed in of external heat into the building circuit Check the circulation in the building circuit pump If required open the stopcocks Replace the safety cut out Reduce or stop the external heat that is entering Check that the dirt filter that is in place is permeable F 1117 Compressor Phase failure Defective fuse Incorrect electrical connections Mains voltage too low Compressor low tariff power suppl...

Страница 58: ... ventilation slits Annually M Characteristic values for the internal temperature sensors hydraulic circuit Sensors TT620 TT650 Temperature C Resistance ohms 0 33400 5 25902 10 20247 15 15950 20 12657 25 10115 30 8138 35 6589 40 5367 45 4398 50 3624 55 3002 60 2500 65 2092 70 1759 75 1486 80 1260 85 1074 90 918 95 788 100 680 105 588 110 510 N Characteristic values for the VR10 internal temperature...

Страница 59: ... 1173 50 966 55 800 60 667 65 558 70 470 75 397 80 338 85 288 90 248 95 213 100 185 105 160 110 139 115 122 120 107 125 94 130 83 135 73 140 65 145 58 150 51 O Characteristic values for the VRC DCF outdoor temperature sensor Temperature C Resistance ohms 25 2167 20 2067 15 1976 10 1862 5 1745 0 1619 5 1494 10 1387 15 1246 20 1128 25 1020 30 920 35 831 40 740 ...

Страница 60: ...e diene monomer rubber brass steel composite materials Permissible water composition Without frost or corrosion protection Soften the heating water at water hardnesses from 3 0 mmol l 16 8 dH in accordance with Directive VDI2035 sheet 1 Water content 8 l Volume of the internal diaphragm expansion vessel 10 l Minimum operating pressure 0 05 MPa 0 50 bar Maximum operating pressure 0 3 MPa 3 0 bar Ma...

Страница 61: ...in accord ance with EN 12102 EN 14511 LWI in cooling mode 30 dB A Technical data Electrics VWZ MEH 97 6 Rated voltage 230 V 10 15 50 Hz 1 N PE Rated voltage 400 V 10 15 50 Hz 3 N PE Rated power maximum 8 6 kW Rated current maximum 230 V 2 6 A Rated current maximum 400 V 13 6 A Overvoltage category II Fuse type 230 V C characteristics slow blow Fuse type 400 V C characteristics slow blow 3 pole swi...

Страница 62: ...ef valve 27 Expansion vessel pre charge pressure 39 F Factory settings restoring 38 Fault codes 37 Fault memory 37 Fault symbol 39 Filling and purging 34 Filling pressure displaying 36 Frost 3 21 Frost protection function 7 22 Function menu 38 H High pressure switch off 39 Hot water temperature Risk of scalding 21 I Inspection work 39 Installation assistant 35 Installation clearances 25 Installer ...

Страница 63: ......

Страница 64: ...rbyshire 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 Subject to technical modifications 0020291544_01 ...

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