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Installation manual aroTHERM installation and service manual Size

1. ZS m amp gt 2 Z E amp De BH i Ss ES O A Q 2 O A OF S ORS g Q aor gt lt g LIQ O Q 5 gt Vd z O Oz s 19 SE gt m o lt a hs E T gt gt ol S 8 N Ki E i n p UU enu IM d W W pr Mii GE WS Le bile hl i i n it H 23 z oz y Er 9 Do AS age 2583 P 5 2 2 8 8 un al oe ee x si 9 NON q o S z gt 9 gu D y E un g E lt lt z E gt Q A Am o E E z e N E X al RE e gt gt 3 Heat pump 91 VWZ Al VWL X 2 auxiliary module 13a Remote control unit 94 VWZ MEH 60 auxiliary heating module 13e System controller UV1 Diverter valve 16 Outside temperature sensor DCF receiver SP1 Cylinder temperature sensor 19 Maximum thermostat VF1 Flow temperature sensor 28 Zone valve 40 Installation instructions aroTHERM 0020147164 04 D Heat pump schematic D 1 Heat pump schematic drawing VWL 55 2 A 230 V Ds 20 Gee O OH J ye e B Y v Y A r 9 E pte _ 4 eo Sk
2. N e sna O ME ejo a ZH ca pelos ad SES s US q SE a gt SE N Q dH Elo a N Ze d D4H z co dz di E mm WS N 1 Wi LK gt dJe noz E gt A e Ki O Co o gt m iz ol k E lo i m m 1 gt o o Tt Q OS SA Or z G O S Ze S aos E x Q m Ofs z g Sa 9 S A z IS O Ol SI S 9E S E mE E ES o gt a Aol 2 S Ia o E N i e z gt S o a 8 N Tt val Wr mnm m AH ES OT OUT HEITE A 2 T T M d d qt Ai UU Ki 2u kero N 5 ax x 2 gt JJ SL L a lgl su gasa HEROS M ru S x 2 NON go o o E a o m o gt om N y E un a lt lt ke yN N O S o o N E x z MEI H E X zi E al gt m gt gt 3 Heat pump 13b Mixer module 13a Remote control unit 13e System controller 0020147164_04 aroTHERM Installation instructions 16 Outside temperature sensor DCF receiver HK2 P Heating pump 2 19 Maximum thermostat UV1 Diverter valve 1 91 VWZ AI VWL X 2 auxiliary module SP1 Cylinder temperature sensor 92 VWZ MWT 151 heat exchanger module VF1 Flow temperature sensor 1 94 VWZ MEH 60 auxiliary heating module VF2 Flow temperature sensor 2 HK P Heating pump 1 ZP Circulation pump HK1 P Heating pump 1 C 4 Wiring diagram 12 A VRC 470 13e VR 81
3. m gt o o t S Oj S A Or S OF S A Off o LOS O OF 0 O Mai S O OF z LIS OF E IE T m i lt 2 g 218 It I RARA AAA it UA f r ED E TU mm QR n D Ex uideo e T TE d xL LzaS 54390 2z 3553 N 3 52 IV gt gt O ee SC 58 8 8 x lt a NON 9 ui gt S d E a o x 3 EX r3 oi H a o ane E d SR d R 0 Hd 5 a 3 Heat pump 19 Maximum thermostat 13a Remote control unit 91 VWZ Al VWL X 2 auxiliary module 13b Mixer module 94 VWZ MEH 60 auxiliary heating module 13e System controller HK1 P Heating pump 1 13g Solar module HK2 P Heating pump 2 16 Outside temperature sensor DCF receiver KOL1 Collector temperature sensor for collector field 1 38 Installation instructions aroTHERM 0020147164 04 KOL1 Solar pump for collector field 1 SP2 Oylinder temperature sensor solar cylinder P VF1 Flow temperature sensor 1 SP1 Cylinder temperature sensor ZP Circulation pump C 3 Wiring diagram 10 B
4. 5 Exo p a4 o E 13g 3 _230V TL y 4230 V 2BUS A 91 Be 13a 13b EE ES EH UO 230V TTT T5 RI TIL 3 230 V moy pee EENS 42 BUS 2 BUS 2BUS 1077 ai 3 ge Ba ey J 52 1f 52 le r l i SC t to 28 9X28 gt HK1 P HK2 P x 50 l ADS EEN AA pe 16 a R A y d f Gi a ES 94 2 xl Zu zH Y VFI Si 4 e y Au 3 5 uvi 42a I g p JE eg j 2 BUS E O 3 5 230 400 V LE Yd 42b La ee x Sege Ve gl Sen ng ml D Segel Ka ul 8X8 Outside temperature sensor DCF receiver 16 19 25 28 30 Heat pump Maximum thermostat Domestic hot water cylinder Solar pump unit Remote control unit 13a 13b 13e Zone valve Mixer module Non return valve System controller Cap valve 32 Solar module 13g Installation instructions aroTHERM 0020147164 04 32 39 42a 42b 42c 43 48 50 52 58 63 64 65 Thermostat mixing valve Expansion relief valve Diaphragm expansion tank Diaphragm expansion tank drinking water Safety group drinking water connection Pressure gauge Differential pressure bypass valve Individual room control valve Fill and drain valve VFK solar flat collector Solar in line vessel Collecting container 002
5. Fan N Air inlet temperature sensor 3 Ribbed pipe heat ex changer 4 Temperature sensor of the ribbed pipe heat ex changer D 4 way valve 6 Return heating circuit temperature sensor 7 High efficiency pump with flow sensor 8 Purging valve 9 Flow heating circuit tem perature sensor 10 Drain valve 11 Plate heat exchanger 12 Temperature sensor after the plate heat exchanger 13 Service valve for the high pressure range of the coolant circuit 14 High pressure pressure switch in the coolant cir cuit 15 High pressure sensor in the coolant circuit 16 Compressor outlet temper ature sensor 17 Rotary piston compressor 18 Filter 19 Liquid separator 20 Electronic expansion valve 21 Compressor inlet temper ature sensor 22 Service valve for the low pressure range of the coolant circuit 23 Filter 24 Fluid collector Heating return B Heating flow 3 5 System diagram VWL 85 2 A 230 V VWL 115 2 A 230 V VWL 155 2 A 230 V ow A tg a T gt AAA ND qian TON IN Uess LATET EMT OI ROLLENG VOTAN Isr Tm QUINT NTI NT DIN COSTO TT II D Q DT Sl
6. 2 Air inlet temperature sensor Installation instructions aroTHERM 0020147164_04 3 Ribbed pipe heat ex 15 High pressure sensor in Information on the identi changer the coolant circuit fication plate Meaning 4 Temperature sensor of 16 Compressor outlet temper the ribbed pipe heat ex ature sensor PS min Minimum ang maximum operat changer 17 Rotary piston compressor PS max ing pressure in the heating circuit 4 way valve 18 Filter COP Ax Wxx Output figure coefficient of Return heating circuit 19 Liquid separator gees at an air inlet temperature sensor i emperature of xx C and a 7 High efficiency pump with 20 Electronic expansion valve heating flow temperature of flow sensor 21 Compressor inlet temper xx C Purging valve ature sensor itl Ax Wxx Heating output at an air inlet Flow heating circuit tem 22 Service valve for the low temperature of xx C and a perature sensor pressure range of the heating flow temperature of 10 Drain valve coolant circuit xx C 11 Pl 23 EE Volt Compressor pump and control ate heat exchanger mode on the VWL 85 2 A i pr pump ler mains voltage 12 Temperature sensor after 230 V only the plate heat exchanger 24 Filter Hz Power frequency 13 Service valve for the high 25 Gas buffer IP Protection class pressure range of the coolant circuit Heating return 14 High pressure pressure B Heating flow switch in t
7. Pollution rating 2 2 2 2 Electric connection 230 V 50 Hz 230 V 50 Hz 230 V 50 Hz 230 V 50 Hz Fuse type T4A T4A T4A T4A Inverter controller fuse HRC 20 A 550 HRC 20 A 550 HRC 32 A 550 HRC 32 A 550 V V V V Level of protection IP 25 IP 25 IP 25 IP 25 Maximum start up cur 16A 16A 20A 25A rent Maximum current con 16A 16A 20A 25A sumption Pump power consump 15 70W 15 70 W 15 70 W 6 87 W tion Fan power consumption 15 42 W 15 42 W 15 76 W 15 76 W Note 2x Electrical classification l I Overvoltage category ll II II ll Fan rotational speed 550 rpm 550 rpm 700 rpm 600 rpm Sound power level for 58 dB A 60 dB A 65 dB A 65 dB A A7W35 according to EN 12102 and EN ISO 9614 1 Sound power level for 59 dB A 60 dB A 65 dB A 65 dB A A7W45 according to EN 12102 and EN ISO 9614 1 Sound power level for 61 dB A 61 dB A 66 dB A 66 dB A A7W55 according to EN 12102 and EN ISO 9614 1 Maximum cylinder tem 60 C 63 C 63 C 63 C perature Minimum air temperature 15 C 20 C 20 C 20 C heating and cylinder charging Maximum air temperature 28 C 28 C 28 C 28 C heating Max air temperature cyl 46 C 46 C 46 C 46 C inder charging Max air flow 2 000 m h 2 700 m h 3 400 m h 5 500 m h Technical data Heating circuit VWL 55 2 A VWL 85 2 A VWL 115 2A VWL 155 2A 230 V 230 V 230 V 230 V Minimum operating pres 0 1 MPa 0 1 MPa 0 1 MPa 0 1 MPa sure 1 0 bar 1 0
8. 8 System diagram VWL 85 2 A 230 V VWL 115 2 A 230 V VWL 155 2 A 230 V 8 Overview of the equipment 9 Type designation and serial number 9 Information on the identification plate 9 Assembly and installation 9 Preparing for fitting and installation 9 Carrying out the installation 14 Hydraulics installation sssssssss 14 Carrying out the electrical installation 17 Connection dagrams 19 A 21 Run the start up seein ii 21 Heat pump operating concept 21 Running through the installation assistant 21 Calling up Live Monitor checking status e ea ae eis 21 Calling up statistics seeeeeeees 21 Filling the heating circuit se 21 Preparing the heating Water ooooonoccccnnnccccnnnncccco 22 Filling the heating installation 23 Activating the heat pump eee 23 Checking the product s operation 23 Operating nolses oooooocconcccnocccnnonccononcnnnnnnnann cnn 23 Adjusting the heating circuit 23 Installing the side cladding 25 Instructing the operator rnesa 25 Maintenance
9. A er ol AA X 1b Auxiliary heater for hot water support 16 Outside temperature sensor DCF receiver 3 Heat pump 19 Maximum thermostat 5 Domestic hot water cylinder 28 Zone valve 13a Remote control unit 30 Non return valve 13b Mixer module 32 Cap valve 13e System controller 40 Heat exchanger 34 Installation instructions aroTHERM 0020147164 04 42a 42b 42c 43 48 50 52 65 91 92 94 0020147164 04 aroTHERM Installation instructions Expansion relief valve Diaphragm expansion tank Diaphragm expansion tank drinking water Safety group drinking water connection Pressure gauge Differential pressure bypass valve Individual room control valve Collecting container VWZ AI VWL X 2 auxiliary module VWZ MWT 150 heat exchanger module VWZ MEH 60 auxiliary heating module HK P HK1 P HK2 P KW MA UV1 SP1 VF1 VF2 ZP Heating pump 1 Heating pump 1 Heating pump 2 Cold water Multi relay output Diverter valve 1 Cylinder temperature sensor Flow temperature sensor 1 Flow temperature sensor 2 Circulation pump 35 B 4 System diagram 12 A qzy A O0v 0Ez S E A ee b qi IdS 2 3
10. 0020147164 04 aroTHERM Installation instructions 29 B System diagrams B 1 System diagram 8 E A gd A IMA d gt E z cS NNN SS E E lg l IS I S fae o c i lt 1 Y w 2 HO EN z g E d x l l Les a DA o q E E 1 Heat generator 13e System controller 2 Hear generator pump 13h Bus coupler Heat pump 16 Outside temperature sensor DCF receiver 10 Thermostatic radiator valve 32 Cap valve 30 Installation instructions aroTHERM 0020147164 04 38 42a 42b 43 50 0020147164 04 aroTHERM Installation instructions Diverter valve Expansion relief valve Diaphragm expansion tank Safety group drinking water connection Differential pressure bypass valve 91 93 KW VF1 VWZ AI VWL X 2 heat pump control module VWZ MPS 40 compact buffer cylinder Cold water Flow temperature sensor 1 31 System diagram 8 F B 2
11. There is a risk of injury or death to the user or others or of damage to the product and other property in the event of improper use or use for which it is not intended The heat pump is an air water monoblock system and uses the energy from the outside air to supply heat to the building The heat pumps are intended exclusively for domestic use as heat generators for closed heating and hot water central heating sys tems and for hot water generation Intended use includes the following observance of accompanying operating installation and servicing instructions for the product and any other system compon ents installing and fitting the product in accord ance with the product and system approval compliance with all inspection and main tenance conditions listed in the instruc tions Any other use that is not specified in these instructions or use 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 Installation instructions aroTHERM 0020147164 04 2 Notes on the documentation 2 1 Observing other applicable documents gt You must observe all the operating and installation in structions included with the system components 2 2 Storing documents gt Pass these instructions and all other applicable docu ments on to the system operator 2 3 These instr
12. Between 9200 and 10 000 I h No PWM signal cable faulty or not connected fault in the main PCB Pump faulty Pump cabling faulty Low water pressure Dirt filter in the heating circuit return is missing or blocked Heating circuit not fully purged Pressure loss in the heating circuit too high F 536 Compressor outlet temp too high Coolant quantity too low Sensor is faulty or incorrectly connected to the main PCB Premature expansion in the liquid area of the coolant circuit loss of charge Electronic expansion valve faulty Heat exchanger blocked 48 Installation instructions aroTHERM 0020147164 04 Code Meaning Cause F 537 High pressure switch open Coolant volume too high or too low Vacuum insufficient 10 mbar ncondensable particle in the coolant circuit Pressure switch or electrical connection faulty Premature expansion in the liquid area of the coolant circuit loss of charge Flow quantity too high see defined maximum flow rate Flow rate monitor faulty Insufficient heat transfer in the heat exchanger F 539 Coolant pressure too low Coolant quantity too low Air flow too low No thawing The resistance heating in the condensate receiver is faulty Away valve faulty Electronic expansion valve motor faulty or connection faulty F 546 Sensor fault High pressure
13. eeeeeeeeeennneenn nnn 25 Observing maintenance intervals 25 Preparing for maintenance ooocconcccccnnonccccncnnccnno 25 Instructions before carrying out maintenance Mo dE 25 7 4 Yearly maintenance esses 25 7 5 Cleaning the product 26 7 6 Draining the product eseese 26 7 7 Checking the product s status codes 27 7 8 Checking the electrical installation 27 7 9 Start up following maintenance 27 8 Troubleshooting eene 27 8 1 Troubleshooting eee 27 8 2 Fault Codes eee eei eate rient 27 8 3 Carrying out the actuator test 27 9 Decommissioning eee 28 9 1 Temporary decommissioning 28 9 2 Permanently decommissioning 28 10 Vaillant customer service 28 10 1 Customer service ias eee dene enin 28 11 Disposal unu 28 11 1 Recycling and disposal sss 28 11 2 Arranging disposal of coolant 28 Appendbc nd ue ENEE 29 A Overview of accessories s 29 B System diagrams eene 30 B 1 System diagram BE 30 B 2 System diagram SE 32 B 3 System diagram 10 B A 34 B 4 System diagram 12 A 36 C Wiring diagrams ee 37 C 1 Wiring diagram SE
14. Faulty cabling F 554 Coolant pressure not in operating range Coolant volume too high or too low ncondensable particle in the coolant circuit Electronic expansion valve faulty Premature expansion in the liquid area of the coolant circuit loss of charge Flow quantity too high see defined maximum flow rate Insufficient heat exchange in the plate heat exchanger or the ribbed pipe heat exchanger Away valve faulty F 582 EEV fault Cable insulation faulty Connection broken F 585 Sensor fault Temp building circuit EEV 2 Sensor is faulty or incorrectly connected to the main PCB F 685 Communication fault eBUS The product is not connected to the controller Polarity inverted F 750 Connection fault Compressor Cable insulation faulty Connection broken F 751 Compressor Overcurrent fault The products voltage supply is too low The ribbed pipe heat exchanger or heat exchanger is dirty F 752 Fault Inverter Inverter box damaged The cooler inverter box is blocked Faulty voltage supply The Max duration power supply cut off parameter has been Set poorly see the Heat pump setting parameters section in the appendix F 753 Connection fault Inverter not recognised The connection between the main PCB and the inverter box is damaged or broken The inverter box is not switched on The Max duration power supply cut off parameter has been set incorrectly
15. see the Heat pump setting parameters section in the appendix F 754 Fault Fan unit The connection between the main PCB and the fan PCB is dam aged or broken The fan PCB is faulty F 755 Fault 4 way valve position incorrect Mechanical or electrical problem Move the 4 way valve away from the controller When moving it check that the coil voltage is correct F 774 Sensor fault Air inlet temperature The temperature sensor is faulty or incorrectly connected to the main PCB F 1288 Fault SP1 cylinder temperature sensor Sensor is faulty or has not been correctly connected to the VWZ AI heat pump control module Connection fault Accessory modules 1 Sensor on the evaporator 2 Sensor on the condenser Fault in the VWZ AI heat pump control module the connection between the display and the main PCB is faulty 0020147164 04 aroTHERM Installation instructions 49 Code Meaning Cause Connection fault Heat pump The eBUS connection between the heat pump and the VWZ AI heat pump control module is faulty 1 Sensor on the evaporator 2 Sensor on the condenser For further technical information please call 0844 6933 133 50 Installation instructions aroTHERM 0020147164 04 Index A eu ee EE 27 B Back Cleaning deinen cd 26 C Cable d ct iei doe e eit ies 18 CE label RR n etie e 4 Connection diagram essseeee e 19 D Document nee eR eme rins
16. the coolant which it contains completely drained into a suitable vessel so that it can then be recycled or disposed of in accordance with regulations The competent person who installed the heat pump must dispose of the coolant Personnel who are approved for energy recovery must have the relevant certification that corresponds to the valid regula tions Installation instructions aroTHERM 0020147164 04 Appendix A Overview of accessories System diagrams SE 8F 9B 9A 10A 10B 10C 11A 42A 42B VWZ MEH 60 X X x x VWZ MEH 61 Auxiliary heat generator Heat generator X X X X Heat generator without x eBUS external heat generator Without heat exchanger X X X X X X Frost protection VWZ MWT 150 X X X X Without decoupling module X X X X X Decoupling cylinder VWZ MPS 40 X X X X External cylinder X Heat generator with hot X water generation Domestic hot water cylinder X X X X X Solar powered domestic hot X Hot water generation water cylinder Bivalent domestic hot water X X cylinder heat pump and heat generator 1 zone heating circuit X X X Zone heating circuit con trol 2 zone heating circuit X X X X X 1 or 2 zone heating circuit X X With VR470 4 only If the installation is not carried out correctly and no auxiliary heat generator is installed this may affect the comfort level
17. xn 2 NV INN Mo MUN OW ur ru N E ox x 2 gt NW E Lz 35920 sa 55332 5 228 8 rao E gt x 9 NUUS za S S gt gu N y ZS un d lt lt 2 N N S a a i 8 z e A R E x 4 E sl e gt gt 1 Heat generator 16 Outside temperature sensor DCF receiver 3 Heat pump 91 VWZ Al VWL X 2 auxiliary module 13e System controller VF1 Flow temperature sensor 1 13h Bus coupler 0020147164 04 aroTHERM Installation instructions C 2 Wiring diagram 8 F zal E 1al 5be1113 eds IdS roy sna Bs Es Ga Ds aH Ertrag SI SP2 SP1 33V 5V 24V KOL1 ei d 931 p E i d L104 230 V d KOL1 P VW lli 382 E i De eso sea ees E i VR 68 A OEZ 13g E 230 V VF2 3 sna EE ili ili z 24H uz E d n i nc 9 19 230 V d D4H HK1 P HK2 P HI Po dZ d1 E i wea A OEZ VR 61 i 230 V 13b Ee
18. 1 1 1 1 FUS T4A a amp T lo jg Rat TICLES j 9 z 8 6 ZET n Maaa le 6 OT iJ 3p 329g qr Oz Ox 8 1 TS JAIAL repr E o g Oj Temperature sensor of the ribbed pipe heat exchanger Compressor outlet temperature sensor Temperature sensor after the plate heat exchanger Coolant circuit temperature sensor Coolant circuit pressure switch Heat pump heating flow temperature sensor A OUO N gt 0 N O A Compressor inlet temperature sensor Heat pump heating return temperature sensor 0020147164_04 aroTHERM Installation instructions 19 10 11 12 13 14 15 16 17 20 Air inlet temperature sensor Electronic expansion valve Main PCB Coding resistance Diagnosis software connection Fan 1 Fan 2 for VWL 155 2 only Fan PCB Crankcase heating 18 19 20 21 22 23 24 25 Drain pan electrical heating rod LED status display Heating circuit high efficiency pump with flow sensor 4 way valve PCB installation Rotary piston compressor Inverter box Temperature sensor for ribbed pipe heat exchanger Installation instructions aroTHERM 0020147164 04 6 Start up 6 1 Run the start up 1 Before starting up t
19. 2 48 9 ST 6 um LL Se KSE 6 1 Flow heating circuit temperature sensor 14 Service valve for the high pressure range of the coolant 2 Return heating circuit temperature sensor circuit 15 High pressure pressure switch in the coolant circuit 3 High efficiency pump with flow sensor 16 High pressure sensor in the coolant circuit 4 Expansion vessel not for Vaillant 17 Compressor outlet temperature sensor 5 Drain valve 18 Rotary piston compressor 6 Purging valve 19 Filter 7 Fan 20 Liquid separator 8 Air inlet temperature sensor 21 Electronic expansion valve 9 Ribbed pipe heat exchanger 22 Compressor inlet temperature sensor 10 Temperature sensor of the ribbed pipe heat exchanger 23 Service valve for the low pressure range of the coolant 11 4 way valve circuit 12 Plate heat exchanger 24 Filter 13 Temperature sensor after the plate heat exchanger 25 Fluid collector 0020147164 04 aroTHERM Installation instructions 41 D 2 Heat pump schematic drawing VWL 85 2 A 230 V 9 y FO o o 0 A A e a H o gt 4 PZHH ilu o 0 N O Om A OU MM 11 12 13 42 Flow heating circuit temperature sensor Return heating circuit temperature sensor High efficiency pump with flow sensor Expansion vessel not for Vaillant Drain valve Purging valve Fan Air
20. 3 4 Heating mode 1 Evaporator 4 Compressor 2 4 way valve 3 Fan 5 Electronic expansion valve 6 Plate heat exchanger 3 3 2 Thawing D 1 Evaporator 2 4 way valve 3 Fan 4 Compressor 5 Electronic expansion valve 6 Plate heat exchanger 3 4 System diagram VWL 55 2 A 230 V QO 3 3 3 Application limits Operation of the pump outside the application limits results in the heat pump being switched off by the internal control and safety devices 3 3 3 1 Application limits in heating mode VWL 55 2 A 230 V e 60 es e 50 40 30 20 10 0 10 20 1 Heating mode application limits 2 Hot water generation application limits A Water temperature B Air temperature 3 3 3 2 Application limits in heating mode VWL 85 2 A 230 V VWL 115 2 A 230 V VWL 155 2 A 230 V 28 63 5 63 oe Sen 46 58 ee 4622 Pe sl i E Er 22 50 40 30 20 10 0 1 Heating mode application limits 2 Hot water generation application limits A Water temperature B Air temperature L HA UU AAAA H der S A E E Bis A A A
21. 7 E Electrical diagram sir c iisisti eravan ariun 19 Electricity 2200 1 chesney tite o s 3 F I DT 23 Front Cleaning DEE 26 Function menu 27 H Heating water Preparing weenie indere eae 22 Hot water Temperature 3 l Identification plate ooo eee eeeeeeeneeeeeeeeeeneeeeeeeeeeeeerenteeeeas 9 Installer level nriih iniedi inaid 21 L Live Monitor Calling UP iii id 21 M Manual ele 7 P Product Uripackirig 6 err trt rtm tee 10 R Ee Ee cto teet dete e m a 4 Risk of scalding tree tt ttes 3 S Safety d viceS iaa 7 Expansion relief ValVe rerne 3 Expansion vessel enceinte etienne ens 3 Sensor actuator Test 27 Setting the language eee 21 Side casing Removing eet eret ee e tie eh Sar be ge n 14 Spare parts ee eee toe tener 25 Statistics Calling Up EE 21 T Terminal connection diagram see 19 Tool EU 4 V Voltage dte ede tee etm deett es 3 0020147164 04 aroTHERM Installation instructions 51 0020147164 04 05 05 2014 Vaillant Ltd Nottingham Road Belper Derbyshire DE56 1JT Telephone 44 84 56 02 29 22 Vaillant Service Solutions 44 807 06 06 07 77 Spares Technical Enquiries 44 17 73 59 66 15 info vaillant co uk technicalspares groupservice 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 consen
22. A 230V Size increases by 45 mm Size increases by 45 mm when using the vibration when using the vibration dampers supplied dampers supplied 0020147164_04 aroTHERM Installation instructions 11 5 1 2 2 Installation clearance 5 1 2 3 Selecting the installation site Clearance For heating mode A gt 250 mm B gt 1000 mm C gt 120 mm D gt 600 mm E gt 300 mm Caution If the minimum clearances are not maintained the output of the product may be affected gt To guarantee sufficient air flow and to facilitate mainten ance work observe the minimum clearances that are specified above gt Ensure that there is sufficient room to install the hydraulic lines gt If the product is to be installed in areas where heavy snow falls ensure that the snow does not accumulate around the product and that the minimum clearances specified above are observed If you cannot ensure this install an additional heat generator in the heating circuit An elevating socket is available as an accessory In order to adapt the product to higher levels of snow only use the Vaillant elevating socket 12 gt Observe all valid regulations gt Install the pro
23. Health and Safety Executive and that it meets the requirements of the appro priate Building Regulations The Benchmark Checklist can be used to demonstrate compli ance with Building Regulations and should be provided to the customer for future reference Local regulations Installers are required to carry out installation commissioning and servicing work in accord ance with the Benchmark Code of Practice which is available from the Heating and Hot water Industry Council who manage and pro mote the Scheme enchmarn COLLECTIVE MARK THE MARK OF QUALITY FOR THE INSTALLATION COMMISSIONING AND SERVICING OF DOMESTIC HEATING AND HOT WATER SYSTEMS Visit www centralheating co uk for more in formation Planning consent and Building works notific ation should be submitted either to Building Control or to a Competent Person Provider 1 8 1 8 1 Statutory requirements Regulations Where no British Standards exists materials and equipment should be fi t for their purpose and of suitable quality and workmanship The installation of this appliance must be car ried out by a competent person in accord ance the rules in force in the countries of des tination Manufacturer s instructions must not be taken as overriding statutory requirements 0020147164 04 aroTHERM Installation instructions 1 8 2 Standards On installing and commissioning the appli ance you must adhere to the technical rules standards and
24. MPa 1 50 2 0 bar gt Open the service valves on the back of the product gt Remove the hose and the mixing container 6 12 1 1 Available pressure in the heat pump heating circuit o 500 1000 1500 2000 2500 1 VWL 55 2 A 230 V water 4 VWL 155 2 A 230 V water temperature 20 C temperature 20 C 2 VWL 85 2 A 230 V water A Remaining feed head temperature 20 C 3 VWL 115 2 A 230 V water B temperature 20 C C kPa Flow rate l h Remaining feed head mbar 6 12 2 Adjusting the heating circuit flow rate Caution Risk of material damage due to frost If the minimum flow rate is too low the heat exchanger may become damaged by frost gt Operate the product with a sufficient flow rate see table The product is designed for operation between the minimum flow rate and maximum flow rate as specified in the table If the product is operated with the minimum flow rate this res ults in a loss of energy and efficiency The heating comfort is still guaranteed but the energy savings are reduced VWL 55 2 VWL 85 2 VWL 115 2 VWL 155 2 Minimum 380 I h 380 I h 540 l h 1 200 I h flow rate Maximum 860 l h 1 400 l h 1 900 I h 2 590 l h flow rate You can read the flow rate directly from the controller De pending on the type of liquid in the heating circuit the flow rate displayed on the controller may be exaggerated Example If you use a 3096 mixture of pro
25. act Relevant Utility supplier s regulations Water regulations and by laws Environment agency and local council re quirements regarding bore holes water courses Or noise levels Gas safety installation and use regulations concerning any associated gas fired heat source used within the heating system Building regulations part L amp P and direct ives concerning energy saving Building regulations such as G3 covering Hygiene and L8 Legieonella COSHH regulations Other relevant bodies such as HETAS and OFTEC BS7671 requirements for electrical installa tions All other national and regional relevant regu lations for the installation of heat pumps and heating systems must be followed CE label 1 5 The CE label shows that the products comply with the basic requirements of the applicable directives as stated on the identification plate The declaration of conformity can be viewed at the manufacturer s site Installation instructions aroTHERM 0020147164 04 1 6 Approvals This product has been fully tested in accord ance with BS EN 14511 2011 1 7 Benchmark places responsibilities on both manufacturers and installers The purpose is to ensure that customers are provided with the correct equipment for their needs that it is installed commissioned and serviced in accordance with the manufacturer s instruc tions by a competent person approved at the time by the
26. bar 1 0 bar 1 0 bar Maximum operating pres 0 3 MPa 0 3 MPa 0 3 MPa 0 3 MPa sure 3 0 bar 3 0 bar 3 0 bar 3 0 bar Heating circuit water con 1 11 1 61 2 11 2 71 tents in the heat pump Minimum heating circuit 171 211 351 601 water contents Min volume flow rate 380 I h 380 I h 540 I h 1 200 I h 46 Installation instructions aroTHERM 0020147164 04 VWL 55 2 A VWL 85 2 A VWL 115 2A VWL 155 2A 230 V 230 V 230 V 230 V Nominal volume flow 860 I h 1 400 I h 1 900 I h 2 590 I h rate max volume flow rate Hydraulic pressure differ 640 mbar 450 mbar 300 mbar 370 mbar ence Technical data Coolant circuit VWL 55 2 A VWL 85 2 A VWL 115 2A VWL 155 2A 230 V 230 V 230 V 230 V Coolant type R410A R410A R410A R410A Coolant contents 1 80 kg 1 95 kg 3 53 kg 4 40 kg Maximum permissible 4 15 MPa 4 15 MPa 4 15 MPa 4 15 MPa operating overpressure 41 50 bar 41 50 bar 41 50 bar 41 50 bar Compressor type Rotary piston Rotary piston Rotary piston Rotary piston Oil type Specific Specific Specific Specific polyvinyl ether polyvinyl ether polyvinyl ether polyvinyl ether PVE PVE PVE PVE Coolant circuit control Electronic Electronic Electronic Electronic system Technical data Heat pump system performance data VWL 55 2 A VWL 85 2 A VWL 115 2 A VWL 155 2 A 230 V 230 V 230 V 230 V Heating output A
27. inlet temperature sensor Ribbed pipe heat exchanger Temperature sensor of the ribbed pipe heat exchanger 4 way valve Plate heat exchanger Temperature sensor after the plate heat exchanger 24 25 26 Service valve for the high pressure range of the coolant circuit High pressure pressure switch in the coolant circuit High pressure sensor in the coolant circuit Compressor outlet temperature sensor Rotary piston compressor Filter Liquid separator Electronic expansion valve Compressor inlet temperature sensor Service valve for the low pressure range of the coolant circuit Filter Gas buffer Flow rate limiter cooling mode Installation instructions aroTHERM 0020147164 04 D 3 Heat pump schematic drawing VWL 115 2 A 230 V G 4 FO o Geo lE o CO o F e e qq ye GES AS gt 4 H in o N O O1 0o MN 11 12 13 Flow heating circuit temperature sensor Return heating circuit temperature sensor High efficiency pump with flow sensor Expansion vessel not for Vaillant Drain valve Purging valve Fan Air inlet temperature sensor Ribbed pipe heat exchanger Temperature sensor of the ribbed pipe heat exchanger 4 way valve Plate heat exchanger Temperature sensor after the plate heat exchanger 0020147164 04 aroTHERM Installati
28. life of the system exceeds three times the nominal volume of the heating installation Ifthe limit values shown in the following tables are not observed Total heating Total hardness at smallest boiler heating output surface 20 I kW i a Ge gt 50 KW kW mol m mg l mol m mg l mol m mg l CaCOs CaCOs CaCOs No require lt 50 ment 2 200 0 02 2 0 lt 3 300 50 to 200 2 200 1 5 150 0 02 2 0 1 Of the specific system volume nominal capacity in litres heating output on systems with more than one boiler the lowest individual heating output must be set These values only apply up to three times the system volume for filling and supple mentary water If three times the system volume is exceeded the water must be treated in accordance with the specifications from the VDI softening desalting hardness stabilisation or blowing down This is exactly the same as if the limit values in the table were exceeded 2 On systems with circulation water heaters and for systems with electric heating elements Permissible salt content Heati har Sa H E Unit Low salt Saline acteristics Electrical conductivity at 25 C uS cm 100 100 1 500 Free of sedimentary materi Appearance als pH value at 25 C 8 2 10 0 8 2 10 0 Installation instructions aroTHERM 0020147164 04 Heatin P water char Unit Low salt Saline acteris
29. the ground in front of the product can absorb water well 5 1 2 5 Preparing the condensate discharge Danger Risk of injury due to frozen condensate Frozen condensate on paths may cause falls gt Ensure that condensate does not dis charge onto paths and that ice cannot build up there The condensate is discharged centrally underneath the product gt Prepare the condensate discharge using a drain line or in a gravel bed 13 5 2 Carrying out the installation 5 2 1 Removing the side casing 1 Remove both screws A 2 Pull the side casing downwards and then forwards 5 2 2 Aligning the product Note Note that the required tool is not included in the scope of delivery 1 Only use bolts of a specific length 14 Maximum length lt 8 mm 2 Align the product horizontally so that condensate can flow Note The product must be installed with the vi bration isolating feet supplied The product is lifted by the vibration isolating feet which simplifies the condensate discharge process and reduces vibrations 3 Screw in the vibration damping feet using the concrete foundation Note The concrete foundation must not be joined to the house foundations 5 3 Hydraulics installation In heating installations that are equipped primarily with ther mostatic or electrically controlled valves a constant an
30. 0147164 04 aroTHERM Installation instructions 91 94 HK1 P HK2 P KOL1 KOL1 KW SP1 SP2 VF1 ZP VWZ Al VWL X 2 auxiliary module VWZ MEH 60 auxiliary heating module Heating pump 1 Heating pump 2 Collector temperature sensor for collector field 1 Solar pump for collector field 1 Cold water Cylinder temperature sensor Cylinder temperature sensor solar cylinder Flow temperature sensor 1 Circulation pump 33 B 3 System diagram 10 B 4 TT O e T T c9 S ESSSMESSSS M ls E N FE Dr N g 3 i T F I A amp Ls 230 400 V INA s z R ici Ge 22 l Y Lei cl ai El N rto D UN r atr PO AT E gt N Y 1 E l B 4 i Y K Ki En I 1 lun E es xd Pa g ol pal x48lL___________ i i KA 3 1 B S o l a 5 T e L D N T lo i la L 32 m S m n o ON e D I i 7 is d S N w X E r g ty Z In b IE uS M ene x g um ao INI rn Cp isa Sese Ic T Roque JON m Ed a EA 5 8 L JUJ E E pos a a 5 F Z r Y 5 S Lo K 3 N
31. 1 Ensure that the external control equipment thermo stats external sensors etc are sending a heating demand to the heat pump When configuring several areas test heating circuit by heating circuit and ensure that the appropriate heating circuit gets warmer 2 Ensure that all heating circuit thermostatic radiator valves are open 3 If necessary balance the heat generator Checking the product s operation 0020147164 04 aroTHERM Installation instructions 6 11 Operating noises ell Hhmmm Clink Chug chug chug Whirr Permanent operating noises The noises listed do not constitute a fault with the heat pump In various operating modes the noises come from the heat pump Start Thawing Stop 6 12 6 12 1 Purging the heating circuit Adjusting the heating circuit Conditions SW14 open end spanner Connect one end of the hose to the purging valve gt In order to collect the residual glycol when purging the heating circuit insert the other end of the hose into the mixing container Close the stop valves on the back of the product Increase the pressure in the heating circuit Open the purging valve with an open end spanner Open the lower stop valve on the back of the product If liquid escapes from the pipe close the purging valve Check the pressure in the heating circuit If necessary increase it vvvvvyy 23 Operating pressure 0 15 0 2
32. 2 Installation instructions For the competent person Installation instructions aroTHERM VWL 55 2 A 230 V VWL 85 2 A 230 V VWL 115 2 A 230 V VWL 155 2 A 230 V UK Publisher manufacturer Vaillant GmbH Berghauser Str A0 8 D 42859 Remscheid Telefon 02191 18 0 9 Telefax 021 91 18 28 10 info vaillant de www vaillant de Vaillant Contents 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 2 1 2 2 2 3 3 1 3 2 3 3 3 4 3 5 4 1 4 2 5 1 5 2 5 3 5 4 5 5 6 1 6 2 6 3 6 4 6 5 6 6 6 7 6 8 6 9 6 10 6 11 6 12 6 13 6 14 7 1 7 2 7 3 eler 3 Action related warnings oooomoccccinniccncnnncocccccncccncnnn 3 Required personnel qualifications 3 General safety information ssss 3 Regulations directives laws standards 4 CE label x und 4 Approvals n tetris eite iater 5 Local reoulattons neee neeeeere reene 5 Regulations A e EE EE TE T 5 Other regulations seeren 5 Intended use cin ia Ri 6 Notes on the documentation 7 Observing other applicable documents 7 Storing documents 7 Applicability of the instructions 7 System overview eene 7 Safety devices eire een e etes 7 Design of the heat pump system 7 Futrictionality iicet dilata ees 7 System diagram VWL 55 2 A 230 V
33. 37 C 2 Wiring diagram 8 F see 38 C 3 Wiring diagram 10 B eene 39 C 4 Wiring diagram 12 A 40 D Heat pump schematic 41 D 1 Heat pump schematic drawing VWL 55 2 A AA EE 41 D 2 Heat pump schematic drawing VWL 85 2 A A 42 D 3 Heat pump schematic drawing VWL 115 2 A 230 WV 43 D 4 Heat pump schematic drawing VWL 155 2 A 290 M rescate et ee 44 E Heat pump setting parameters 44 F Technical data eene 45 G Overview of fault codes 48 WINGO eu 51 Installation instructions aroTHERM 0020147164 04 1 Safety 1 1 Classification of action related warnings The action related warnings are classified in accordance with the severity of the possible danger using the following warning signs and signal words Action related warnings Warning symbols and signal words Danger Imminent danger to life or risk of severe personal injury Danger Risk of death from electric shock Warning Risk of minor personal injury Caution Risk of material or environmental damage gt be E 1 2 Improper work carried out on the product may cause material damage to the complete installation and as a consequence may even cause personal injury You should therefore only work on the product if you are an authorised competen
34. 7 W35 4 90 kw 6 70 kW 7 90 kW 11 80 kw A 7 W35 output figure EN 2 40 2 80 2 50 2 60 14511 coefficient of per formance A7 W35 heating output 4 70 kw 8 10 kW 10 50 kW 14 60 kW A7 W35 output figure EN 4 70 4 80 4 20 4 50 14511 coefficient of per formance Power consumption ef 1 10 kW 1 80 kW 2 50 kW 3 40 kW fective at A7 W35 Input current at A7 W35 4 80A 7 80A 10 90 A 14 80A ATIWAS heating output 4 40 kW 7 80 kW 10 20 kw 13 40 kW ATIWAS output figure EN 3 40 3 80 3 40 3 40 14511 coefficient of per formance Power consumption ef 1 30 kW 2 10 kW 3 00 kW 4 10 kW fective at A7 W45 Input current at A7 W45 5 70A 9 10 A 13 00 A 17 80 A A7IW55 heating output 4 20 kw 7 00 kw 9 80 kW 11 20 kW A7 W55 output figure EN 2 70 3 00 2 90 2 30 14511 coefficient of per formance Power consumption ef 1 60 kW 2 40 kW 3 50 kW 5 00 kW fective at A7 W55 Input current at A7 W55 7 00A 10 40A 15 20A 21 70A 0020147164 04 aroTHERM Installation instructions G Overview of fault codes 1 Sensor on the evaporator 2 Sensor on the condenser Code Meaning Cause F 022 Water pressure too low Insufficient water in the heating system F 037 Fan fault Obstruction in the product s air guiding Fan motor not connected or faulty The connection between the main PCB and the fan PCB is dam aged or broken F 042 Fault Coding resistance The products coding resistance is missing or is faulty Coding res
35. allation instructions 5 3 2 1 Installing system diagram 8 variant E Install the system in accordance with system diagram 8 variant E Page 30 Note In this system the circulation pump of the heat pump functions as a heating pump It is also in operation when only the boiler is in operation 2 On start up set system diagram 8 on the controller 3 n order to guarantee operation with two heat generat ors install the flow temperature sensor 4 Connect the eBUS compatible boiler using a bus coupler on the eBUS line 5 3 3 Installing system diagram 8 variant F 1 Install the system in accordance with system diagram 8 variant F gt Page 30 2 On start up set system diagram 8 on the controller 3 n order to guarantee a minimum circulation water volume install a differential pressure bypass valve 4 n order to guarantee the product s underfloor protective circuit install a limit thermostat 5 In order to guarantee the hot water generation using the heat pump install a cylinder sensor and a 3 way valve 5 3 4 Installing system diagram 10 variant B 1 Install the system in accordance with system diagram 10 variant B Page 30 2 On start up set system diagram 10 on the controller 3 In order to guarantee a minimum circulation water volume install a differential pressure bypass valve 4 n order to guarantee that the unit can be operated with an auxiliary heating module install the flow tem
36. changer 24 Filter 13 Temperature sensor after the plate heat exchanger 25 Gas buffer E Heat pump setting parameters Note If repairs are carried out on the heat pump electronics e g replacing the PCB you must reset the parameters 44 Installation instructions aroTHERM 0020147164_04 Parameter Explanation Default Adjustment Own setting setting range Language Select the required language here 02 English 01 Deutsch 02 English 03 Frangais 04 Italiano 05 Dansk 07 Castellano 08 T rkce 09 Magyar 11 Ykpa Hcbka 15 Svenska 16 Norsk 18 e tina 19 Hrvatski 20 Slovencina 22 Sloven ina Contact As a competent person you can enter your telephone num details ber here The end customer can read this number in the menu Information Max remain Limiting the remaining heating circuit feed head If the value Maximum 2 100 mbar ing heating is reduced the pump speed is reduced as far as necessary value circuit feed in order to prevent the remaining feed head from being head exceeded Max remain Limiting the remaining hot water circuit feed head If the Maximum 2 100 mbar ing hot water value is reduced the pump speed is reduced as far as ne value feed head cessary in order to prevent the remaining feed head from being exceeded Max dura If the set value is exceeded when the power supply is dis Oh 0 99h tion of the connected fault messages F 103 F 752 or F 753 may be power inter displayed r
37. compressor T 0 13 Flow temperature T 0 14 Return temperature T 0 15 Heating circuit pressure T 0 16 Heating circuit flow rate T 0 17 Lockout contact S20 T 0 66 Air inlet temperature T 0 26 Compressor outlet temperature T 0 27 Compressor inlet temperature T 0 29 Heat exchanger temperature T 0 30 High pressure T 0 31 Condensation temperature T 0 33 Evaporation temperature T 0 34 Superheating target value T 0 35 Superheating actual value T 0 36 Subcooling actual value T 1 37 Outside temperature T 1 38 DCF status T 1 59 Multi function output 1 T 1 60 Multi function output 2 T 1 61 Diverter valve 1 T 1 62 Flow sensor T 1 63 Cylinder sensor T 1 64 Multi function input T 1 65 Energy supply company input T 1 66 Inlet temperature T 1 67 High pressure switch T 1 68 Compressor rotational speed T 1 69 Condensate pan heating T 1 15 Water pressure 27 9 Decommissioning 9 1 Temporary decommissioning Switch the product off 2 Disconnect the product from the power supply 9 2 Permanently decommissioning 1 Switch the product off 2 Disconnect the product from the power supply 3 Drain the product Page 26 4 Dispose of or recycle the product and its components 10 Vaillant customer service 10 1 To ensure regular servicing it is strongly recommended that arrangements are made for a Maintenance Agreement Please contact Vaillant Service Solutions 0870 6060 777 for further details Cust
38. d suf ficient flow through the heat pump must be ensured Irre spective of which heating installation is selected the min imum volume of circulating heating water 4096 of the nom inal flow see the technical data table must be guaranteed 5 3 1 Carrying out the hydraulics installation Caution Risk of damage caused by residue in the heating flow and return Residue from the pipelines such as welding beads scale hemp putty rust and coarse dirt may be deposited in the product and cause malfunctions gt Flush the heating installation thoroughly before connecting the product in order to remove any possible residue Caution Risk of material damage due to corrosion If plastic pipes that are not diffusion tight are used in the heating circuit this may lead to corrosion and deposits in the heating circuit and in the product Donottreat the water with corrosion pro tection agents if plastic pipes that are not diffusion tight are used Danger Risk of material damage caused by sol dering work Carrying out soldering work on lines that have already been installed may damage the seals gt Solder the lines before installing the product Installation instructions aroTHERM 0020147164 04 Insulate the lines including those running below ground with UV resistant and high temperature res istant insulation between the product and the heating installation In order to avoid transferring vibrations to the
39. duct outside the building gt Do not install the product Near a heat source Near flammable materials Near ventilation openings for adjacent buildings Under deciduous trees gt Note the following points when installing the product Prevailing winds The visual impression on the environment gt Avoid places where strong winds blow on the product s air outlet gt Point the fan away from nearby windows Install noise protection if necessary gt Install the product on one of the following supports Concrete slab Steel T beam Concrete block Elevating socket Vaillant accessory Wall bracket permitted Vaillant accessory for VWL 55 2 A 230 V VWL 85 2 A 230 V and VWL 115 2 A 230 V or VWL 115 2 A 400 V gt Do not expose the product to dusty or corrosive air e g near unsecured streets gt Do not install the product near ventilation shafts gt Prepare the routing for the electrical lines Installation instructions aroTHERM 0020147164 04 gt Note any noise emissions from the fan and compressor 0020147164 04 aroTHERM Installation instructions 5 1 2 4 Installing the heat pump 1 Note the safety information in this manual and in the operating instructions before installing the product 2 Install the product on steel beams concrete blocks or using a wall holder accessory 3 Ensure that no water collects under the product 4 n order to avoid ice formation ensure that
40. er 3 f you install a limit thermostat e g 50 C in the heat ing circuit flow remove the bridge from terminal 2 and connect the limit thermostat to this terminal 5 4 4 Installing the cable duct Caution Risk of malfunction due to incorrect rout ing of the supply lines If you route the supply lines for the power supply and the eBUS line through the same cable duct the signal will be disrupted Route the supply lines for the power sup ply and the eBUS line through various cable ducts in the product 18 1 eBUS line and limit ther mostat line cable duct 2 Power supply cable duct 1 Measure the diameter of the cable 2 Drill a hole the same size as the cable diameter in the cable duct 3 Route the cable through the cable duct 4 Tighten the cable duct with two open end spanners Installation instructions aroTHERM 0020147164 04 5 5 Connection diagrams 5 5 1 Connection diagram VWL 55 2 A 230 V VWL 85 2 A 230 V VWL 115 2 A 230 V VWL 155 2 A 230 V amp 02 TH CIE vis 9 Age OTIT UIZ TIJE TT ST 91 21 87 FMU 1J e ej v js T9 4 8 6 lo Eu st 97 218 1 67 07 zr al
41. ge Setting the language You can use this function to set the desired language 6 3 2 Telephone number for the competent person You can store your telephone number in the appliance menu The operator can display it in the information menu The tele phone number can be up to 16 digits long and must not con tain any spaces If the telephone number is shorter end the entry after the last digit by pressing the right hand selection button LO All of the digits to the right will be deleted 0020147164_04 aroTHERM Installation instructions 6 4 Calling up Live Monitor checking status codes Menu gt Live Monitor You can use this function to call up the status code of the heat pump which provides you with information about the current operating condition of the heat pump 6 5 Menu gt Installer level Test menu gt Statistics Calling up statistics You can use this function to call up the statistics for the heat pump 6 6 Filling the heating circuit Note We recommend using ethylene glycol with corro sion inhibiting additives If no frost protection has been poured in the product will not be protected in the event of a power cut when there is frost Conditions SW10 open end spanner 1 Heating circuit purging valve 2 Open end spanner on site 3 Hose 4 Collecting container on site gt To purge the heating circuit during the filling procedure use a filling
42. gt Clean the ribbed pipe heat exchanger and ensure that air circulates between the fins and around the product gt Check that the fan rotates freely gt Check that condensate can escape freely from the heat pump by removing the adaptor underneath the heat pump gt Clean the product as described in the operating instruc tions gt Check that the vibration dampers are correctly seated on the coolant lines Yearly maintenance v 25 7 5 Cleaning the product 7 5 4 Cleaning the front Warning Risk of injury due to sharp edged casing The product s casing sections have sharp edges Wear gloves when installing or dismant ling the product s casing sections Remove the side casing Page 14 Remove both screws 1 Remove the four screws 2 and remove the mesh 3 Clean the product 1 2 3 Lift off the cover 4 5 7 6 Draining the product Conditions SW10 open end spanner gt Disconnect the product from the power supply Remove the side casing Page 14 Remove both screws 1 Lift off the cover Remove both screws 2 on the right front casing Remove the right front casing Lift the louvred grill 3 upwards Remover the fan grill casing 4 Remove the nut 5 from the fan Remove the fan ZZ DD Jo mb 7 5 2 Cleaning the back Warning Risk of injury due to sharp edged casing The product s casing sections have sharp edge
43. he coolant cir 5 Assembly and installation cuit 5 1 Preparing for fitting and installation 5 1 1 Delivery transport and positioning 4 Overview of the equipment 5 1 1 1 Transporting the product 4 1 Type designation and serial number The type designation and serial number are on the identifica tion plate 1 4 2 Information on the identification plate Information on the identi A we Meaning fication plate Serial no Unique unit identification number P max Maximum rated power l Max operating current max Maximum start up current Warning pads EE Risk of injury from lifting a heavy weight PSp_ LP Min and max operating pres PS HP s re in the coolant circuit Lifting weights that are too heavy may cause injury to the spine for example 0020147164_04 aroTHERM Installation instructions gt When transporting the product two people should lift it gt Observe the product weight stated in the technical data When transporting heavy loads observe the applicable directives and regulations Caution Risk of material damage due to incorrect transportation Regardless of the mode of transport the heat pump must never be tilted by more than 45 Otherwise this may lead to malfunctions in the coolant circuit during subsequent opera tion In the worst case scenario this may lead to a fault in the whole system gt During t
44. he heating water may result in material damage However no incompatibility with Vaillant units has been detected with proper use of the following products over a long period When using additives follow the manufacturer s instruc tions without exception Note Vaillant accepts no liability for the compatibility of any additive or its effectiveness in the rest of the heating installation Additives for cleaning measures subsequent flushing required Fernox F3 Sentinel X 300 Sentinel X 400 Additives intended to remain permanently in the system FemoxF1 FemoxF2 22 Sentinel X 100 Sentinel X 200 Additives for frost protection intended to remain permanently in the system Fernox HP 15 or HP15c Sentinel X 500 gt Inform the operator about the measures required if you have used these additives gt Inform the operator about the measures required for frost protection Permissible water hardness Note Contact the local water supply company for further information on water quality gt Observe all applicable national regulations and technical standards when treating the filling and supplementary water Provided the national regulations and technical standards do not stipulate more stringent requirements the following applies You must treat the heating water in the following cases Ifthe entire filling and supplementary water volume dur ing the operating
45. he product read through the operat ing instructions 2 Check that the electrical partition is installed 3 Check that the hydraulic and electric connections are correctly designed 4 Check that a dirt filter is installed in the heat pump re turn 5 Check whether an expansion relief valve an expansion vessel and a pressure gauge are installed 6 Check the leak tightness of the connections 7 Open all the heating circuit valves Heat pump operating concept Caution Risk of material damage caused by incor rect handling Incorrect settings at installer level may cause damage to the heating installation gt Only access the installer level if you are an approved competent person The operating concept and operation of the heat pump is described in the operating instructions for the heat pump Menu gt Installer level You can call up the installer level using code 17 6 3 The installation assistant is launched when the heat pump is switched on for the first time Running through the installation assistant You must confirm the launching of the installation assistant Once confirmed all heating demands from the heat pump are blocked This status remains until the installation assist ant is completed or cancelled Set the system diagram number in the VWZ Al heat pump control module in accordance with the schematic drawings in the appendix Page 30 6 3 1 Menu gt Basic setting gt Langua
46. installation assistant but want to set the most im portant system parameters again you can also call up the Configuration menu point Menu gt Installer level Configuration Installation instructions aroTHERM 0020147164 04 6 12 3 1 Heat pump setting parameters To individually set the heat pump you can adjust certain parameters in the Configuration menu Menu gt Installer level Configuration Additional setting data is listed in the appendix Heat pump setting parameters gt Page 44 6 13 Installing the side cladding gt Install the side cladding 6 14 1 Explain the how the system operates to the operator 2 Draw particular attention to the safety information which the operator must follow 3 Make the operator aware of the need for regular main tenance maintenance contract 4 Explain to the operator how to check the system s water volume filling pressure Instructing the operator 7 Maintenance 7 1 Observing maintenance intervals 1 Only carry out maintenance work if you are a competent person 2 Carry out annual maintenance 0020147164 04 aroTHERM Installation instructions 7 2 7 2 1 Preparing for maintenance Procuring spare parts The original components of the unit were also certified as part of the CE declaration of conformity Information about available Vaillant genuine spare parts is available by con tacting the contact address provided on the reverse of this d
47. ion if the measured temperature exceeds the maximum permissible temperature The maximum permissible temperature depends on the evaporation and condensation temperature The product measures the flow rate of the connected heating circuit when starting up the product Ifthe heating circuit temperature falls below 3 C the product s frost protection function is automatically ac tivated as the heating pump is started In addition frost protection agent should be added to the heating water as the heating water temperature may fall below the freez 0020147164 04 aroTHERM Installation instructions ing point in the event of a power cut which poses a risk of frost to the heating installation 3 2 Design of the heat pump system Note Operating the heat pump outside the application limits results in the heat pump being switched off by the internal control and safety devices The heat pump system consists of the following components aroTHERM heat pump VWZ AI heat pump control module Additional hydraulic components if required VRC 470 system controller The heat pump can be operated by the VWZ Al heat pump control module The extended operation of the heat pump is carried out by the system controller 3 3 Functionality The product comprises the following circuits The coolant circuit releases heat into the heating circuit by means of evaporation compression condensation and expansion The heating circuit 3
48. istance value outside the permissible range X25 plug not connected or was connected incorrectly F 073 Fault Water pressure sensor Line to water pressure sensor is broken or has a short circuit F 086 Contact thermostat has opened Underfloor heating temperature too high Heating circuit flow rate too low Underfloor heating circuit is closed F 103 Fault Spare part detection The main PCB that is fitted as a spare part or the inverter does not match the product The Max duration power supply cut off parameter has been Set poorly see the Heat pump setting parameters section in the appendix F 514 Sensor fault Comp inlet temp F 517 Sensor fault Comp outlet temp Sensor is faulty or incorrectly connected to the main PCB F 519 Sensor fault Return temperature F 520 Sensor fault Flow temperature F 523 Sensor fault VF1 Line to VF1 temperature sensor is broken or has a short circuit F 526 Sensor fault Temp environment circuit EEV 0 Sensor is faulty or incorrectly connected to the main PCB F 532 Building circuit Flow rate too low Pump faulty Check the specific flow rate in the heating circuit during the sensor actuator test Between 7000 and 7700 I h The power supply is not suffi cient Between 7700 and 8200 I h The pump runs dry no water in the heating circuit the heating circuit loses water Between 8200 and 8700 I h Fault in the electronics Between 8700 and 9200 I h The pump is blocked
49. l rg 16 eel sna z eel sna z 1b 13a 13e 16 36 Auxiliary heater for hot water support Heat pump Domestic hot water cylinder Remote control unit System controller Outside temperature sensor DCF receiver 19 28 32 42a 42b 42c Maximum thermostat Zone valve Cap valve Expansion relief valve Diaphragm expansion tank Diaphragm expansion tank drinking water Installation instructions aroTHERM 0020147164 04 43 Safety group drinking water connection 94 VWZ MEH 60 auxiliary heating module 48 Pressure gauge KW Cold water 50 Differential pressure bypass valve UV1 Diverter valve 1 52 Individual room control valve VF1 Flow temperature sensor 1 91 VWZ AI VWL X 2 auxiliary module C Wiring diagrams C 1 Wiring diagram 8 E o E E lo w gt m ti o e N N S IS m s nn rn bo un DO DH E E als GC 89 5 g N E e gt E gt 4 E y gt Sp S D ol ds R AAAA Ai itd ftd bald cn TUTTI QUT DU TUUM Br G dru Baalo t N zB gz z2J z2 zzg z52 ULT UU UL Wr I
50. nger Risk of death from electric shock as a res ult of an improper electrical connection An improper electrical connection may neg atively affect the operational safety of the product and result in material damage or per sonal injury gt The electrical installation must be carried out by a suitably qualified competent per son who is responsible for complying with the existing standards and directives 1 Only strip a maximum of 3 cm from the outer sheathing of the flexible lines 2 Secure the conductors in the connection terminals 5 4 1 The external mains connection cable must be earthed and connected with the correct polarity and in accordance with the valid regulations Establishing the power supply gt Check that the mains connection cable is connected cor rectly The cables that connect the product to the fuse box must Be suitable for fixed installation Be weatherproof Be equipped with a wire cross section that is necessary for the product performance gt Connect the product using a fixed connection and a parti tion with a contact opening of at least 3 mm e g fuses or power switches In order to meet the overvoltage category Il requirements further fuse protection may be required To meet the overvoltage category IIl conditions the parti tions must ensure a complete separation of the power sup ply 0020147164 04 aroTHERM Installation instructions 1 Mains connection te
51. ocument gt If you require spare parts for maintenance or repair work use only Vaillant genuine spare parts 7 3 Instructions before carrying out maintenance work Observe the basic safety rules before carrying out mainten ance work or installing spare parts Danger Risk of injury due to unauthorised access to the coolant circuit Escaping coolant may cause freezing if the exit point is touched gt Only carry out work on the coolant circuit if you have been trained to do so and if you have the required protective clothing gt Avoid skin and eye contact with the coolant Switch the system off Disconnect the system from the power supply gt Where necessary disconnect the heating circuit from the product by using the stop valves gt If you have to replace parts on the heating circuit you must first drain the product When working on the product protect all electric com ponents from spray water v 7 4 Check that the safety devices are functioning properly Check the heating circuit s fill pressure gt Ensure that there are no traces of rust or oil on the coolant circuit components gt Ensure that the product components are neither worn nor defective gt Check that all wires sit securely in the connectors Check the product s earthing Check the heating pump s flow temperature and the set tings gt Remove any dust from the electronics box and the in verter box
52. omer service To ensure efficient and reliable operation of your boiler it is recommended that regular servicing is carried out by your service provider Vaillant Applied System Sales Vaillant Group UK Ltd Nottingham Road Belper Derbyshire DE56 1JT United Kingdom VaillantTraining 845 601 88 85 E mail commercial vaillant co uk Commercial service assistance 870 850 30 72 Mon Fri 8 30am 5 30pm Technical advice 844 693 31 33 Mon Fri 8 30am 5 30pm Sat 9 00am 4 00pm E mail technical vaillant co uk 11 Disposal 11 4 Recycling and disposal gt The competent person who installed your product is re sponsible for the disposal of the packaging Ki If the product or any batteries that it contains are marked with this symbol they contain substances hazardous to human health and to the environment gt In this case do not dispose of the product and any bat teries that it contains with your normal household waste gt Instead bring the product and any batteries to a collec tion centre for batteries and electrical or electronic appli ances 28 11 2 Arranging disposal of coolant Warning Risk of damage to the environment This heat pump contains R 410 A coolant The coolant must not be allowed to escape into the atmosphere R 410 A is a fluorinated greenhouse gas covered by the Kyoto Pro tocol with a GWP of 1725 GWP Global Warming Potential gt Before the product is disposed of have
53. on instructions 24 25 Service valve for the high pressure range of the coolant circuit High pressure pressure switch in the coolant circuit High pressure sensor in the coolant circuit Compressor outlet temperature sensor Rotary piston compressor Filter Liquid separator Electronic expansion valve Compressor inlet temperature sensor Service valve for the low pressure range of the coolant circuit Filter Gas buffer 43 D 4 Heat pump schematic drawing VWL 155 2 A 230 V TE OT O o e gt o gt 4 PZHH a e o ilu E AS 1 Flow heating circuit temperature sensor 14 Service valve for the high pressure range of the coolant 2 Return heating circuit temperature sensor circuit 15 High pressure pressure switch in the coolant circuit 3 High efficiency pump with flow sensor 16 High pressure sensor in the coolant circuit 4 Expansion vessel not for Vaillant 17 Compressor outlet temperature sensor 5 Drain valve 18 Rotary piston compressor 6 Purging valve 19 Filter 7 Fan 20 Liquid separator 8 Air inlet temperature sensor 21 Electronic expansion valve 9 Ribbed pipe heat exchanger 22 Compressor inlet temperature sensor 10 Temperature sensor of the ribbed pipe heat exchanger 23 Service valve for the low pressure range of the coolant 11 4 way valve circuit 12 Plate heat ex
54. ou want to connect a swimming pool to the heating circuit note the components expansion vessels etc that are required for the installation 5 3 7 Connecting the condensate drain pipework Note Observe all valid national regulations and rules 16 N Condensate drain pipe Adaptor Cable tie 4 Elbow 5 Seal Observe the various installation dimensions for the products Product Dimension Value VWL 55 2 A 70 0 mm B 490 0 mm VWL 85 2 A 102 5 mm VWL 115 2 VWL 155 2 B 550 0 mm Pull the heating wire in the condensate pan until the elbow 4 Connect the elbow 4 and adaptor 2 to the seal 5 and secure them both using a cable tie 3 Connect a condensate drain pipe to the elbow Install the heating wire in the condensate drain pipe 1 in order to prevent the condensate from freezing in the line Connect the adaptor 2 with the product s floor plate and secure it with a 1 4 rotation Installation instructions aroTHERM 0020147164 04 7 Make sure that the condensate drain pipe ends in a gravel bed 8 Route the condensate drain pipework with a downward gradient Note The condensate drain pipe must not be longer than 365 mm otherwise it may freeze over 5 4 Carrying out the electrical installation 5 4 2 Standard tariff 5 4 2 1 230 V connection 1 Connecting wires 2 Insulation Da
55. perature sensor 5 In order to guarantee the hot water generation using the heat pump install a cylinder temperature sensor and a 3 way valve 6 n order to guarantee the product s underfloor protective circuit install a limit thermostat 7 Install an auxiliary electric heater on site 8 Setthe hot water temperature for the pre heating stage on the system controller and the desired hot water tem perature on the on site auxiliary heater 5 3 5 Installing system diagram 12 variant A 1 Install the system in accordance with system diagram 12 variant A Page 30 2 On start up set system diagram 12 on the controller 3 Connect the area valves 4 In order to guarantee a minimum circulation water volume install a differential pressure bypass valve 5 In order to guarantee the product s underfloor protective circuit install a limit thermostat 6 In order to guarantee that the unit can be operated with an auxiliary heating module install the flow temperature sensor 15 7 In order to guarantee the hot water generation using the heat pump install a cylinder temperature sensor and a 3 way valve 5 3 6 Connecting the swimming pool optional Danger A Risk of material damage due to a direct connection to a swimming pool If the product is directly connected to a swim ming pool damage may be caused by corro sion gt Do not connect the heat pump heating circuit directly to a swimming pool gt If y
56. provisions in eff ect at the time 1 8 3 Reminder of existing regulatory acts ECregulation No 20372000 from the 29th of June 2000 This European regulation re peals regulation No 3093 94 and presents the elimination schedules of CFC and HCFC It also deals with the collection of refrigerants system leaks particularly sys tems containing more than 3 kg of CFC or HCFC as well as the minimum level of qualifi cation required by the technicians ECregulation No 0842 2006 from the 17th of May 2006 regarding the containment use collection and disposal of the fl uorin ated greenhouse gases the labelling and elimination of the products and equipment containing these gases the restriction of use and banning of certain products from the market as well as the training and cer tifi cation of personnel and companies op erating in the activities targeted by this reg ulation refrigeration air conditioning heat pumps and fi re protection systems con taining greenhouse gases 1 9 1 9 1 Control of Substances Hazardous to Health Under Section 6 of The Health and Safety at Work Act 1974 we are required to provide in formation on substances hazardous to health The adhesives and sealants used in this ap pliance are cured and give no known hazard in this state The refrigerant used in this appliance is R410a the use of which is strictly controlled by F Gas regulation EN842 2006 Other regulations 1 10 Intended use
57. pump Connect one end of the hose 3 to the drain valve gt When purging insert the other end of the hose 3 into the mixing container 4 gt Open the filling valve using an open end spanner 2 gt To purge the heating circuit open the purging valve by a 1 4 rotation B using an open end spanner 21 gt Increase the operating pressure in the heat pump heat ing circuit Operating pressure 0 15 0 2 MPa 1 50 2 0 bar Note The pressure level may fall in the first month following start up It may also vary depending on the outside temperature Conditions If you are using glycol gt The glycol must not escape into the outflow or the envir onment gt Prepare a mixture with suitable glycol max 50 ethyl ene glycol in order to protect the heat pump against frost according to the regional minimum temperatures Note If no frost protection has been poured in the product will not be protected in the event of a power cut when there is frost gt Use a frost protection tester to ensure the correct dosage 6 7 Preparing the heating water Caution Risk of material damage if the heating water is treated with unsuitable frost and corrosion protection agents Frost and corrosion protection agents may cause changes in the seals noises during heating and may lead to further damage gt Do not use any unsuitable frost and corro sion protection agents Mixing additives with t
58. pylene glycol and the liquid temperature is 5 C you must subtract 400 l h from the value shown on the display gt Use the following table to compare the various exaggera tion flow rate values depending on liquid type Applies for VWL 55 2 A 230 V VWL 85 2 A 230 V 24 VWL 115 2 A 230 V Flow rate increase I h Temper Temper Temper ature ature ature 5 C 15 C 25 C Water 0 0 0 60 alcohol 0 0 0 30 propylene 400 240 120 glycol Liquid 50 propylene 650 500 400 type glycol 30 ethylene 120 0 0 glycol 50 ethylene 400 140 50 glycol Applies for VWL 155 2 A 230 V Flow rate increase I h Temper Temper Temper ature ature ature 5 C 15 C 25 C Water 0 0 0 60 alcohol 0 0 0 30 propylene 600 440 280 glycol Liquid 50 propylene 1050 740 580 type glycol 30 ethylene 520 350 300 glycol 50 ethylene 880 680 540 glycol Note Insufficient purging may lead to deviations in the flow rate gt If you cannot reach the minimum flow rate install an ad ditional pump gt If you cannot reach the recommended flow rate adjust the heating circuit pressure on the controller and if ne cessary use a bypass valve item 50 6 12 3 Adapting the unit to the heating installation The installation assistant is launched when the product is switched on for the first time If you have already filled the heating installation and termin ated the
59. ransport do not tilt the heat pump by any more than the maximum angle of 45 Use the transportation belt to carry the product to the final installation site Only lift the product from the back and side where the hydraulic connections are located When transporting the product using a hand truck se cure the product using a belt In order to avoid scratches and damage protect the sides of the product that come into contact with the hand truck 5 1 1 2 Unpacking the product Remove the transport belt 4 Carefully remove the packaging and padding without damaging the product 3 Remove the screws from the pallet at the front and rear of the product 5 1 1 3 Checking the scope of delivery Check the contents of the packaging units Quant Description ity 1 Condensate discharge 1 Bag with seals 4 Vibration isolating feet 1 Purge hose 5 1 2 Complying with clearances and installation clearances 5 1 2 1 Unit dimensions and connection dimensions VWL 55 2 A 230 V 1 2 10 Remove the accessory 2 Remove the documentation supplied 1 Size increases by 45 mm when using the vibration dampers supplied Installation instructions aroTHERM 0020147164 04 VWL 85 2 A 230V O VWL 115 2
60. rds and guidelines 1 3 4 Risk of being scalded by hot drinking water There is a risk of scalding at the hot water draw off points if the hot water temperatures are greater than 50 C Young children and elderly persons are particularly at risk even at lower temperatures gt Select the temperature so that nobody is at risk 1 3 5 Risk of injury or material damage due to incorrect handling of the product Using the fins on the front side of the product as conductors may lead to injuries due to falling or to material damage gt Do not use the fins as conductors 1 3 6 Risk of material damage due to additional elements in the heating water Unsuitable frost and corrosion protection agents may damage seals and other com ponents of the heating circuit and may there fore also lead to leaks in the water outlet Only add approved frost and corrosion protection agents to the heating water 1 3 7 Risk of material damage caused by using an unsuitable tool Use the correct tool to tighten or loosen screw connections 1 3 8 Avoid environmental damage caused by escaping coolant The heat pump contains R410A coolant The coolant must not be allowed to escape into the atmosphere R410A is a fluorinated greenhouse gas covered by the Kyoto Pro tocol with a GWP of 1725 GWP Global Warming Potential If it escapes into the at mosphere its impact is 1725 times stronger than the natural greenhouse gas CO Befo
61. re the heat pump is disposed of the coolant it contains must be completely drained into a suitable vessel so that it can then be recycled or disposed of in accordance with the regulations Ensure that only officially certified com petent persons with appropriate protective equipment carry out maintenance work on the coolant circuit or access it Arrange for the coolant contained in the product to be recycled or disposed of by accredited specialists in accordance with regulations Only use coolant R410A gt Only use a suitable R410A tool for the filling pressure measurement vacuum generation and discharge Solder the lines using shielding gas Check the lines for leak tightness using nitrogen n the event of a repair or maintenance work fill the coolant circuit with liquid coolant gt If the coolant circuit is not leak tight check which component must be repaired or re placed Lower the negative pressure in the coolant circuit to max 10 mbar 1000 Pa gt When filling the coolant circuit observe the values in the Technical data section 1 4 Regulations directives laws standards As part of the installation commissioning and operation of the heat pump and the DHW storage you must take into account the cur rent versions of the following regulations or standards along with any local directives or guidelines that may apply Electricity at work act Health and safety at work
62. rminal 2 Partition in the product Caution Risk of material damage due to high con nected voltage At mains voltages greater than 253 V elec tronic components may be damaged gt Ensure that the rated voltage of the mains is 230 V v Connect the mains connection cable to the product s power supply connection VWL VWL VWL VWL 55 2 85 2 115 2 155 2 230 V 230 V 230 V 230 V Power supply 1 N PE 1 N PE 1 N PE 1 N PE 230V 230V 230V 230V 50 Hz 50 Hz 50 Hz 50 Hz Fuse 16A 16A 20A 20A type C typeC typeC typeC or D or D or D or D Recommended 3G x 3Gx 3Gx 3Gx cable dimension 2 5 mm 2 5 mm 2 5 mm 2 5 mm To ensure that people are safe install a separate 30 mA residual current operated circuit breaker for the heat pump gt Guide the mains connection cable through the product s cable duct PEG screwed connection 17 5 4 3 Laying the 24 V cabling 3 eBUS connection in the VWZ Al heat pump control module or in the VWZ MEH 61 1 eBUS connection in the heat pump observe the polarity 2 Limit thermostat connec tion underfloor protective circuit 1 Feed the cable through the cable duct VWL 55 2 A 230 V VWL 85 2 A 230 V VWL 115 2 A 230 V VWL 155 2 A 230 V Recommended eBUS cable dimen 2x0 75 mm sion Recommended cable dimension for 4x0 75 mm eBUS limit thermostat 2 Connect the eBUS cable to the system controll
63. s gt Wear gloves when installing or dismant ling the product s casing sections 26 0 Clean the product and the ribbed pipe heat exchanger W J K qi L 1 Heating circuit drain cock 2 Drain hose Close the stop valves on the back of the heat pump 2 To drain the heating circuit connect a hose to the drain cock or place a vessel underneath the drain cock 3 Open the drain cock with an open end spanner Installation instructions aroTHERM 0020147164 04 Note If necessary you can drain the heating installation using this drain cock by opening the stop valves on the back of the heat pump 7 7 Checking the product s status codes Menu gt Live Monitor You can check the product s status codes at any time to see which operating condition the heat pump is in You can read these codes on the display of the heat pump control module or hydraulic station VWZ MEH 61 7 8 gt Check the electrical installation and take all relevant dir ectives into account Checking the electrical installation Checking the cable If the product s mains power cable is damaged then in order to avoid danger only the manufacturer the Customer Ser vice team or a similarly qualified person should replace the mains power cable gt To replace the mains power cable see Carrying out the electrical installation Page 17 7 9 1 After the maintenance work has been completed start up the prod
64. surround ing buildings use flexible connection pipes on the product that have a length of at least 0 75 m When the product is not installed at the highest point in the heating circuit install additional purging valves in suitable places Install the following accessories in the heating return Installation without decoupling hydraulic module Drain cock Air separator if required Dirt filter An expansion vessel suitable for the complete hydraulic installation Expansion relief valve 0 3 MPa 3 bar Pressure gauge recommended Note If you use glycol you must collect it at the expansion relief valve to prevent environ mental pollution Connection hose in the 5 Heating return connection heating flow to the building diameter 1 1 4 to the on site heat pump O ring seal 6 Connection hose in the heating return to the heat pump on site Insulation on site Covering cap Heating flow connection diameter 1 1 4 to the building Remove the covering caps 3 from the product s hy draulic connections Install a dirt filter in the heating circuit return between two stop valves so that the filter can be cleaned regu larly Install a flexible connection pipe 1 and 6 to be provided on site with an O ring and a stop valve to each of the connections for the heat pump heating flow and return Check the connections for tightness 0020147164 04 aroTHERM Inst
65. t
66. t person Required personnel qualifications 1 3 1 3 1 Danger caused by improper operation General safety information Improper operation may present a danger to you and others and cause material damage gt Carefully read the enclosed instructions and all other applicable documents par ticularly the Safety section and the warn ings 1 3 2 Risk of death from electric shock There is a risk of death from electric shock if you touch live components Before commencing work on the product gt Disconnect the product from the power supply electrical partition with a contact opening of at least 3 mm e g fuse or power switch 0020147164 04 aroTHERM Installation instructions v Secure against being switched back on again Wait for at least 3 minutes until the con densers have discharged Check that there is no voltage Coveror insulate adjacent live parts v v 1 3 3 Risk of death due to lack of safety devices A lack of safety devices e g expansion re lief valve expansion vessel may lead to po tentially fatal scalding and other injuries e g due to explosions The schematic drawings included in this document do not show all safety devices required for correct installa tion gt Install the necessary safety devices in the system gt Inform the operator about the function and position of the safety devices gt Observe the applicable national and inter national laws standa
67. tics Oxygen mg l lt 0 1 lt 0 02 6 8 Filling the heating installation Caution Risk of material damage due to heating water that is extremely calciferous or cor rosive or contaminated by chemicals Unsuitable tap water damages the seals and diaphragms blocks components in the product and heating installation through which the water flows and causes noise gt Only fill the heating installation with suit able heating water Note If a heat exchanger module is used the heating circuit must be topped up with heating water Conditions System separation with a heat exchanger module gt Connect the filling cock with the heating water supply using a cold water valve where possible gt Open all radiator valves thermostatic radiator valves of the heating installation gt Open the cold water valve Slowly open the filling cock Fill it with water until the required filling pressure is reached Close the cold water valve Purge all radiators Then check the filling pressure on the display Top up with more water if necessary Close the filling cock vv vvvvy 6 9 Activating the heat pump 1 Ensure the maximum flow temperature setting matches the heating installation 2 To fully activate the heating installation observe the installation instructions for the system controller 3 Switch on the line protection switch in the fuse box which is connected to the heat pump 6 10
68. uct see Start up Page 21 2 Ifyou have carried out work on load bearing parts check that they are securely fitted 3 When you have completed work on the product carry out an operational and safety test Start up following maintenance 8 Troubleshooting 8 1 You should carry out the following tests before introducing additional steps Troubleshooting gt Make absolutely sure that the power supply was not cut and that the product is correctly connected gt Ensure that the service valves are open gt Check that all external controllers are correctly connec ted 8 2 The fault codes are described in a table in the Appendix Fault codes Fault codes gt Page 48 In the event of a fault a fault code number is shown in the controller s display gt Carry out all necessary repairs Switch the product on off using the partition 0020147164 04 aroTHERM Installation instructions 8 3 Menu gt Installer level Test menu gt Sensor actuator test Carrying out the actuator test You can check that the components of the heating installa tion are functioning correctly using the sensor actuator test Display Test programme T 0 01 Heating pump power T 0 05 Fan power T 0 07 4 way valve circuits for thawing are not counted T 0 08 Position of the electronic expansion valve T 0 09 Heating coil
69. uctions apply to units with the following type des ignations and article numbers only Applicability of the instructions Type designation Art no aroTHERM VWL 55 2 A 230 V 0010014566 aroTHERM VWL 85 2 A 230 V 0010011971 aroTHERM VWL 115 2 A 230 V 0010011972 aroTHERM VWL 155 2 A 230 V 0010014567 The seventh to sixteenth digits of the serial number on the identification plate form the article number 3 System overview 3 1 Safety devices The product can work at the following outside temperat ures VWL 55 2A230V VWL 85 2 A 230 V VWL 115 2 A 230 V VWL 155 2 A 230 V Heating mode 15 28 C 20 28 C Cylinder charging 15 46 C 20 46 C mode Ifthe product s coolant circuit pressure exceeds the max imum pressure of 4 15 MPa 41 5 bar the high pres sure pressure switch switches the product off Follow ing a waiting period the product attempts to start once more After three failed start attempts in succession a fault message is displayed Ifthe product is switched off the crankcase housing heating is switched on when the compressor outlet tem perature reaches 7 C in order to prevent possible dam age caused by switching it back on Ifthe compressor inlet temperature and the compressor outlet temperature are below 1 C the compressor does not start up Atemperature sensor on the compressor outlet limits the product s operat
70. uption If the heat pump is to be operated in the normal or spe cial tariff set the value to 3 h in the special tariff during installation F Technical data Note The following performance data is only applicable to new products with clean heat exchangers Technical data General VWL 55 2 A VWL 85 2 A VWL 115 2A VWL 155 2A 230 V 230 V 230 V 230 V Heat pump type Monoblock Monoblock Monoblock Monoblock air water heat air water heat air water heat air water heat pump pump pump pump Flow return heating con 1 1 4 1 1 4 1 1 4 1 1 4 nections boiler side Product dimensions 970 mm 1 103 mm 1 103 mm 1 103 mm width Product dimensions 834 mm 975 mm 975 mm 1 375 mm height Product dimensions 408 mm 463 mm 463 mm 463 mm depth Net weight 90 kg 106 kg 126 kg 165 kg Hydraulic lines material Copper Copper Copper Copper Hydraulic connections Brass Brass Brass Brass material Hydraulic seals material EPDM EPDM EPDM EPDM 0020147164 04 aroTHERM Installation instructions 45 terial stainless steel stainless steel stainless steel VWL 55 2 A VWL 85 2 A VWL 115 2 A VWL 155 2 A 230 V 230 V 230 V 230 V Plate heat exchanger ma AISI 304 AISI 304 AISI 304 AISI 304 stainless steel Pump casing material Painted cast iron Painted cast iron Painted cast iron Painted cast iron

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