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geoTHERM - Vaillant

1. 8 D o Sox x 5 zan a un a x i 2 a v ees H H H Ty S s 8 22a ER S FER Ia RE 5 2 E oto Eee f mac g 3 523g S Loa 2 t oa SEG Gi E a gt brown e EIS mg pee P PaE zIS QJ E S ellow green a za zo p o E E cv ojo ox Alz S Sms o EI M EDN M 2 EREZ on 5 gt c wi E m2 8 8m L3 5 o Ig ve 2 g S Sz Noe en S d o A o Om wo 2 or L1 E 2a 9 2 yellow green PE Ka A mv D m FEES cogN E NA T geo el x 00 High Panen DO Pressure sensor ii HE 2 DG C Brine circuit S v 2 9 eren Pressure sensor nea Di D s IO Heating circuit o Low pressure esch D a sensor Stt o Jd a IS 5 B0 bk 9j og LOJ a Eh AG Pressure Slt v See sensors Sa E a Gescht e ma SSE 6 Oyo DC mel 5 S5 Tra GIG Gm SC 3 Vue Slvz H mh ese WSKWSK Loj gt D alo zem 2 brown S Lo SLE cmm duas 4s
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3. Nad A OOP X 00 Ajddns surew ois ug Dom aq o3 sazeay Aueiixne jeu191X3 T ois u0 Daul a Is u0 9q 03 duind pojl eq o3 N3419 burjeaH duund jjeM D a SeS S S Nn E v v T DH co soe g B SE Se S s Els ot zc E an LE og agian lo ee bod bog NOINGOINGO IN CO 22 HOS E e L 0000 23 wm E 8 a gt uem Duuouuou eseud o 52832 ER occ TNO 2 KK 3 2 Le ou n gt E o SES ole E 5 2 dl 38 5 l wn OPI S89 oS a aj ga KA E COOC DIBOBDbBIa S oJnjeJeduja NWY 4v 42d sna dS WA la 23 San SE HZ aviona z2t zerjzt ee GN voH0 N 1 N 1 O N ITI N u0Jo ON 1 eoe log log leo bolee eeee oog oog 000 oc KE 3S le 2 EG 127 300 2 17 5 Appendix Electrical circuit diagram VWW 220 2 VWW Installation instructions geoTHERM 0020051574 03
4. 34 Connect the heat pump to the heating circuit 35 Connecting the heat pump to the brine circuit VWS Only atis etieetiesteees seiten dee ore e ERE RE EN Fd 35 Fitting the brine expansion tank in the brine circuit VWS only REENEN 36 Connecting the heat pump to the well water circuit VWW only 37 Filling the heating and heat source circuit 38 Filling regulations En Filling and bleeding the heating circuit Filling and bleeding the brine circuit VWS Tu A E 39 Preparing the filling procedure 39 Filling and bleeding the outer part ot the brine cIreuib suse metre 40 Filling and bleeding the inner part of the brine ele DI E Al Filling and bleeding the entire brine circuit in one Operation 42 Building up pressure in the brine circuit 43 Filling the DHW tank if required 43 Electrical installation 44 Observing the installation instructions 44 Electronic switchbox essent 45 Connecting the electricity suppl 4T Unblocked mains supply electric wiring diagram 1 eese 48 Duel circuit supply heat pump rate electric wiring diagram A 49 Connecting the external heating circuit pump 50 Connecting the external well pump VWW Only EE 51 Connecting the external electric auxiliary heater optional aessa datitan 52 Connecting the limit thermostat unbl
5. eene Checking and bleeding the brine circuit VANS Only etre eror eee earn 67 Checking and bleeding the heating circuit 68 Bleeding the DHW tank if required 68 Handing the heating installation over to the DDT AE 68 Adapting the appliance to the heating system 69 Operating modes and functions 69 Automatic functions eese 69 Settable functions Settable functions at operator level Settable functions at code eye Additional functions via vrDIALOG Control principle Possible heater system circuits sss Energy balance control hydraulics diagram 1 or 3 esses 73 Flow target temperature control hydraulics diagram 2 4 or 10 Controller structure n Resetting to factory settings En Calling up Code level menus esee Menu C Set parameters for the heating system 76 Menu D Carrying out diagnoses Menu I Display general information Menu A Calling up Installation Assistent Parameters which can only be set with VEDIAL OG reete telnet re eie e 93 Inspection and maintenance 96 Notes on inspection and maintenance 96 Carrying out the inspection eeesesee Carrying out the maintenance work Carrying out a restart and trial operation 97
6. 17 2 Appendix Heat pump scheme VWW Key Heating supply line Heating circuit pressure sensor High pressure sensor High pressure switch Compressor Low pressure sensor Low pressure switch Heat source circuit pressure sensor Evaporator OmANDURWN 124 0 2 17 16 15 li d 9 d 14 KJ N g t9 9 AAA aS m e j 10 Ti 12 13 14 15 16 KR w A Lemmer o Flow switch Expansion valve Filter drier Condenser heating circuit pump to be fitted on site Heating return line 3 way heating cylinder charging diverter valve to be fitted on site DHW return line Installation instructions geoTHERM 0020051574 03 Electrical circuit diagram VWS co o g E Hi EA L ZS 8 Bs BS o Sg SE z ZS L x Tu ER E Ea a a a T 2s 4 San t E gt EE E gga TE
7. Heating circuit checklist During planning was consideration given to parts of the building that are to be heated at a later time Was the power for the domestic hot water supply considered Were the heating circuits in the system hydraulically balanced Were leakage pressures determined by pipe network calculations If planning calculations showed that pressure losses were to be sure losses expected Was a second pump incorporated to overcome the pres Was the nominal volumetric flow rate of the heat pump taken into consideration Was a dirt filter incorporated in the return Was the heating system provided with all the safety installations described in this manual Were an overflow funnel and blow out line incorporated Was the heating circuit flushed filled and bled Was the heating circuit checked for leaks Were the pipes thermally insulated against diffusion Brine circuit checklist VWS only Was the correct brine fluid used for filling Was the brine circuit checked for leak tightness Was the brine circuit properly bled Which frost protection agent was used and what setting for frost protection was inputted in the controller tion tester Was the frost protection 15 C 1 K checked with a frost protec Was a pressure switch built into the brine circuit Was the pressure switch connected to the heat pump Was a dirt filter used at the brine s
8. Installation instructions geoTHERM 0020051574 03 gt Change the heating curve Menu C2 Tab 9 6 12 Recycling and disposal Both the geoTHERM heat pump and the associated trans port packaging are made predominantly out of recyclable raw materials 12 1 Disposing of the heat pump If the Vaillant unit is identified with this symbol it does not regarded as household waste at the end of its useful life Therefore ensure that the Vaillant unit and any acces sories are properly disposed of at the end of their useful life 12 2 Disposing of the packaging gt Make sure that the transport packaging is handed over to a proper disposal organisation 12 3 Disposing of brine fluid VWS only Danger Risk of explosion and combustion The brine fluid ethanol is extremely flam mable both as liquid and steam A poten tially explosive combination of steam air may accumulate gt Keep away from heat sparks naked flames and hot surfaces gt Ensure that there is sufficient ventilation in the event of accidental release gt Avoid the accumulation of steam air mix tures Keep brine fluid containers closed gt Observe the safety data sheet that accompanies the brine fluid 12 4 Arranging disposal of coolant The geoTherm heat pump is filled with R 407 C coolant The coolant must be disposed of separately from the heat pump gt Arrange for the coolant to be recycled or disposed of by accredited sp
9. eese 20 Installing the heat Dump EN 22 Hydraulics installation 23 Installing the direct heating mode 24 Description of functions for the direct heating ll aene eee toe ertet ende eed 24 Installation instructions eee 24 Installing the mixed circuit with buffer tank 26 Description of functions for the heating mode with mixed circuit and buffer tank Installation instructions sese Installing the direct heating mode and DENGE Dk ei et ee 28 Description of functions for the direct heating mode and DHW tank domestic hot water cylinder eese 28 Installation Instruction 28 Installing the mixed circuit with buffer tank and DHW tank e teen rotten eere rent 30 Description of functions for the heating mode with buffer tank and DHW tank 30 Installation Instruction 30 5 5 5 51 5 5 2 5 6 5 7 5 8 5 9 5 10 6 1 6 2 6 3 6 3 1 6 3 2 6 3 3 6 3 4 6 3 5 6 4 7A 7 2 7 3 7 34 7 3 2 7 3 3 7 3 4 7 3 5 7 3 6 7 3 7 7 3 8 7 3 9 7 4 Installing the mixed circuit with buffer tank DHW tank and external passive cooling CGY AN Varo a E 32 Description of functions for the heating mode with buffer tank DHW tank and external passive COOMING EE 32 Installation instructions esse 32 Fitting the flexible connecting hoses
10. 18 4 5 Check the scope of delivery 4 4 Check the scope of delivery For the key see tab 4 3 The heat pump is delivered on a pallet and consists of three packing units gt Check the heat pump and the operating panel that is packed separately for any damage caused in transit Installation instructions geoTHERM 0020051574 03 Item Number Description 4 6 Removing the transport locks 1 1 Heat pump 12 2 Installation instructions operating instructions 2 2 Left and right side parts Together in one box 3 1 Operating panel cover column 5 1 6 litre brine expansion tank max 300 kPa 3 bar Together in one large bag 4 1 Clamp for fastening the brine expansion tank 11 1 Expansion relief valve for brine circuit 1 2 300 kPa 3 bar 6 1 VRC DCF radio clock signal receiver with external sensor 4 VR 10 sensors 9 1 Control cable for vrnetDIALOG 10 1 Bag of small parts for fastening the brine expansion tank 2 M6 flat head screws for fitting the operat ing panel on the mounting plate 2 Tapping screws for the operating panel mounting plate 4 Flat head screws for fixing the side parts to the frame 4 5 Removing the transport locks Together in one box 8 4 Flexible connecting hoses 600 mm long gt Carefully remove the packaging and padding without heat source side each with 1 1 2 insi
11. gt You must insulate all brine pipelines using vapour diffusion tight insulation gt Fit the brine pipelines between the heat source and the heat pump along with all the associated components in accordance with the applicable technical guidelines gt Connect the brine pipelines to the heat pump 3 and 4 Fig 5 8 gt Insulate all pipelines using vapour diffusion tight insula tion To prevent freezing use cold pipe clips to con nect the brine pipelines to the heat pump 36 5 9 Fitting the brine expansion tank in the brine circuit VWS only 5 10 Fitting the brine expansion tank Caution Risk of damage from escaping brine If the lower screw coupling on the brine expansion tank 2 has been sealed using Teflon tape or something similar this may lead to leaks in the brine circuit gt Seal this screw coupling with hemp The brine expansion tank from the accessories has a volume of approx 6 litres and is therefore adequate for brine circuits up to a maximum of 500 litres For larger volumes other expansion tanks that are fitted on site must be installed gt Use the dowel and the screw to fit the bracket 3 for the expansion tank to the wall gt Unscrew the prefitted connecting pieces 1 and 2 from the brine expansion tank 57 gt Put hemp on the outside thread of the lower connecting piece gt Install the brine expansion tank with the lower connect i
12. intern Additional electric heating in the heat pump DHW CH External auxiliary heating available for domestic hot water and heating circuit DHW External auxiliary heating available only for domestic hot water Setting for VWS VWW 0 2 intern Not applicable for VWS VWW 0 2 9 9 Menu A Calling up Installation Assistent Installation instructions geoTHERM 0020051574 03 89 Display shown Description Factory setting The controller will only activate the auxiliary heating Cooling Valve installation Assistant gi if it is enabled in Menu C7 Auxiliary heater and the Auxiliary heater f SCENE Kies ollowing condition is satisfied Integration of the Auxiliary heater intern Out T aux htr on Bivalence point Auxiliary heater O C Out T aux htr on o C for reheating is only enabled in heating mode Cylinder type Coil and during parallel operation below this outside temperature gt Select Cylinder type Setting type of cylinder for the domes tic hot water cylinder Coil Pipe coil cylinder e g VIH RW 300 Layered Layered cylinder e g VPS 2 Installation Assistent A4 Freeze protect temp VWS only Minimum permis 10 C Geothermal settings sible brine outlet temperature If the tempera Freeze protect temp 10 C ture falls below this value error message 21 22 or 61 62 appears and the compressor switches
13. the controller The following only applies when installing the optional external passive cooling Caution Risk of malfunction in cooling mode The buffer tank must not be in operation during the cooling mode of the heat pump gt Install a motor driven 3 way diverter valve in both the flow and return so that the buffer tank is avoided in cooling mode Caution Schematic only These examples of hydraulic schemes do not contain all of the shut off and safety instruments that are required for correct installation gt Observe the applicable standards and regulations 26 Installation instructions geoTHERM 0020051574 03 9S 2s eev ZAH d 2WH Josuas eJnjeJaduJaj M0J4 Josuas ainjesadwa MOJ4 Josuas ainjesadwa MO 4 Josuas ainjesadwa MOJ4 6l ci Josuas ainjesadwa uJnjay duund j1nd419 Hulzeay dund jinduld buljeayH duund jinduld BurjeaH duund jinduid DurjeaH Jaxiuu 31n2J12 burjeaH JaXxIW INDI DurjeaH Jaxiui 31n2J12 Hulzeay up 6uinoajoo aug dej ebeuieJp pue Du yue uoisuedxa ouug yun Bui aug 10J sduind jeay yuez uoisuedxe whesydelp 31n2JI Bulyeay DACA Jaljad uoIisuedx3 9AJ eA dojs paddes je1soul18u WNWIXeW JOSUAS aJnjeJaduuaj PISJNO Um 1A199291 4DG DYA d NPOW Jaxiul Q9 MA yun JO1JUOD 830uJ8J Q6 MA J8j 043u02 aduejeg AD1eue p
14. 0 5 Clo 0 5 5 M i gt 5 L oA Ammonia 2 NH3 2 20 o D gt 20 Uu D Carbonic acid 5 free aggressive 5 20 WM A CO gt 20 l D Oxygen 2 O2 2 0 Sulphate lt 70 S04 70 300 oN gt 300 L E Hydrogen carbonate lt 70 Q HCO 70 300 A A 300 H Ratio lt 1 0 oll HCO SO4 0 D D Chloride lt 300 Cr 300 D D Nitrate dissolved 100 NO 100 WM A Optical characteris Limit value Clear Clear tics colour colour less less Water 4 0 8 5 dH overall hardness pH value lt 6 0 9 9 6 0 7 5 WM o 7 5 9 0 n n gt 9 0 gt Electrical conductivity lt 10 uS cm 9 at 20 C 10 500 uS cm gt 500 uS cm J 4 2 Well water quality limit values Installation instructions geoTHERM 0020051574 03 Resistance normally good 9 Danger of corrosion if several criteria are rated with 9 critical unsuitable To prevent the sedimentation of iron ochre especially in the absorbing well a limit value of lt 0 2 mg litre for iron Fe and 011 mg litre for manganese Mn must be observed Cloudiness or settleable substances must not be present in the groundwater irrespective of the statutory regulations Extremely fine dirt particles that lead to clouding of the water also cannot be eliminated by filters They may therefore accu mulate in the evaporator and adversely affect the heat transfer performance 15 4 3 Dimensions and c
15. 18 0 180 m h 19 2 6 3 3 3 9 kPa mbar 1 6 16 2 5 25 5 0 50 5 5 55 7 Cu CuZn Alloy Stainless Steel Fe EPDM R 407 C Quantity Number of revolutions EX valve kg 41 5 99 67 8 6 6 5 6 5 Permissible operating overpressure Compressor type Oil Oil filling quantity 29 29 Scroll z Ester EMKARATE RL32 3MAF 40 4 0 414 414 MPa bar 14 1 Technical Data VWS 112 Installation instructions geoTHERM 0020051574 03 Description Heat pump performance data BO W35 AT 5K In accordance with DIN EN 14511 Heating output Power consumption Output figure coefficient of performance COP BO W35 AT 10K In accordance with DIN EN 255 Heating output Power consumption Output figure coefficient of performance COP BO W55 AT 5K In accordance with DIN EN 14511 Heating output Power consumption Output figure coefficient of performance COP Unit VWS 220 2 VWS 300 2 VWS 380 2 VWS 460 2 The following performance data is applicable to new units with clean heat exchangers kW kW kW kW 22 0 5 0 4 4 22 3 41 4 60 20 3 6 6 A 29 8 6 5 4 6 30 3 4 8 26 8 8 8 3 0 38 3 8 5 45 378 8 0 Al 36 2 11 7 EN 45 9 10 0 4 6 45 5 9 7 47 42 3 14 1 3 0 Interior noise level BO W35 in accordance with EN 12102 Installation location permitted ambient temperature Application limits At the
16. Aux on during DHW no CH temperature Aux heater on at 600 min Select CH only Heating only through auxiliary heating e g during emergency operation Aux on during DHW no CH CH blocked no CH comfort Auxiliary heater supplies the temperature level which cannot be achieved by the compres sor approx gt 55 C cylinder temperature CH only Domestic hot water heating only through auxiliary heating e g during emergency opera tion if no CH was previously enabled the max domestic hot water of approx 55 C applies if comfort was enabled the set value for the max domestic hot water in Menu E 4 applies Aux heater on at Set the degree minutes until the auxiliary heating starts added to the degree minutes for the start of the compressor Example 600 min plus 120 min gt start at 720 min Out T aux htr on Bivalence point Auxiliary heater for reheating is only enabled in heating mode below this outside temperature settable in Tab 9 9 Menu A3 9 6 Menu C Set parameters for the heating system 80 Installation instructions geoTHERM 0020051574 03 Display shown Auxiliary heater Aux on during CH Aux on during DHW Aux heater on at no CH no CH 600 min gt Select Li Description Aux on peak rate If you set wiring diagram 2 this menu item also appears in the top line If you set YES auxiliary heating operation is enabled during the
17. Current flow temperature gt Setpoint flow temperature Hysteresis Compressor starts Compressor starts h Maximum possible number of 3 compressor starts per hr 3 5 Max CH return temp 46 C Max CH return temp Setting the limit of the return 46 C temperature for compressor operation This function is intended to avoid unnecessary short time compressor operation Perm temperature spread Perm temperature spread Max permissible differ 20K ence between brine inlet and outlet tempera ture An error message appears and the com pressor switches off if it is exceeded If 20 K has been set the function is deactivated Brine pump pre run Brine pump pre run Time period by which the brine 1 min pump switches on before the compressor 9 10 Parameters which can only be set with vrDIALOG 94 Installation instructions geoTHERM 0020051574 03 Parameters Description Factory setting Temp fault detection after Temp fault detection OFF If the setpoint for the flow temperature of a heating circuit is not reached after the preset time a corre sponding error message appears in the display and the error is stored in the error list display of the last ten errors This function can be switched on or off Next service due Acceleration mode With Next service due ON the time steps for the inte gral energy balance are changed from 1 min to 1 sec and the energy balancing is there
18. Display contrast Setting the display contrast O 25 OK OK OK OK OK 16 9 9 Menu A Calling up Installation Assistent Installation instructions geoTHERM 0020051574 03 91 Display shown Description The menu only appears if a VPM W drinking water station is installed With electrical heating element Connection of an additionally installed additional electric heating system for creating the temperature for the Anti legionella circuit in the circulation line by inputting YES Installation assistant Compressor A10 Compressor hvster JI CSS50I NYSE Max CH return temp 46 C gt Select Compressor hyster 7K Max The menu entry only appears for hydraulic schemes with direct heating mode Forced switching on of the compressor if Actual flow temperature lt target flow tempera ture minus hysteresis Forced switching off of the compressor if Actual flow temperature gt target flow tempera ture plus hysteresis CH return temp 46 C Setting the limit for the return temperature for the compressor operation This function is intended to avoid unnecessary short time compressor operation End of Installation Assistant Install completed Adjustable values YES Commissioning i Only set Install completed to YES until you are sure that everything has been correctly adjusted Whe
19. Qt 2 e Le E SIN black Je 9 le EE Oj gt NO OLS gar deni amp z ONSE EN T4A 250 V o 9 niri 9 o 25 4 ar ca S CJ ew 2 E Slzy GG SI ES T orange o e GIS p g orange E Eg orc loo Ag brown om x use S ellow greei 9 p T4A 250 V als sielas S a ei TT ape brown Sese G z8 S zo blue ser BB S26 ellow gree 5 gt amp SI lo loo ate brown EI S z8 m z o blue k i AE ellow gree com e eS ellow green S L o olg i 2 L3 2 SEES 41S ome o a Haz L2 bi S52 Nw z S Ze FN H 3 GIS amp o a Pus ES brown em 2 white als P z blue r white S ellow greei 17 4 Appendix Electrical circuit diagram VWS 380 2 VWS 460 2 126 Installation instructions geoTHERM 0020051574 03 yms ainssald Mo yms eunssaJd ubiH jueJun2JeA0 Jeuieu zu Vous MOL 2000 EL 2llL 4J0 9e U09 dwnd aM au UaIIND EIS 4032830Jgd brown re iac 201VIQ19UJA La Aaza VWW ircuit diagram Electrical c Hd e green ellow gree ellow AAAA oo Balafenn 1
20. Reattach the vrnetDIALOG cover to the casing by moving accessory is secured to the mounting plate below the the hinge tabs for the cover into the terminals on the operating panel and is connected to the controller PCB casing and close the cover 7 32 Installing vrnetDIALOG gt Remove the cover from the casing on the vrnetDIALOG by pulling the hinge tabs from the terminals on the cas ing gt Secure the vrnetDIALOG casing on the mounting plate of the operating panel Use the tapping screws 5 and 6 from the equipment pack to do this To secure this see the vrnetDIALOG installation manual gt Connect the 230 V voltage supply line 2 to vrnetDIA LOG three pole ProE plug gt Connect the eBUS line 1 of the operating panel to the adapter cable for vrnetDIALOG 3 from the fittings pack gt Plug the plug for one of the lines of the Y cable into the eBUS socket on the operating panel and plug the plug for the other line into the eBUS socket on the vrnetDIA LOG Any other eBus lines that may already be availa i ble on the vrnetDIALOG are not required and can be removed gt Connect the antenna cable or telephone cable 4 to the vrnetDIALOG see vrnetDIALOG installation man ual These cables must not be fed through the heat pump Installation instructions geoTHERM 0020051574 03 65 8 Start up The heat pump starts and the software in the controller ini tialises Danger Risk of in
21. VWS VWW 220 and scheme 300 only 7 VF2 External flow sensor 25 8 Compressor circuit breaker 8 RF Return temperature sensor buffer tank 26 7 Internal high pressure and low pressure switch 9 VFI Flow temperature sensor buffer tank 27 6 not connected 10 SP DHW tank temperature sensor 28 SCH Accessory for brine switch VWS only or flow 11 BUS eBUS switch VWW only on terminal strip 12 DCF AF DCF signal external sensor 29 5 Brine pump VWS only 13 Energy 30 4 Controller PCB voltage supply supplier Connection for relay contact of the control sys 31 3 External heating circuit pump on terminal strip tem signal receiver from the power company 32 2 Free Open compressor is allowed to operate 33 1 VWS only Control of 3 way brine mixing valve Closed compressor operation blocked cooling on terminal strip 14 1xCP Contact for one time requirement for the circulation pump e g using an external button Installation instructions geoTHERM 0020051574 03 57 Caution Risk of damage from overload The maximum power for all actuators con sumers that are connected to the controller PCB must not exceed 4 A gt Observe the following connection limits Imax 2 A Umax 230 V The controller PCB has a cover plate for protection and this cover plate has openings for the eBUS vrDIALOG 810 2 connection 15 and for the voltage supply LED 18 To replace the fuses 17 or 19 you must remove the cover plate 7 5 Installing the supplied
22. adjustmenting and if neces sary replacing individual components that are subject to wear Danger Risk of damage and personal injury through neglected and improper inspec tion and maintenance Inspection and maintenance must only be carried out by an approved heating engi neer gt Carry out the inspection and mainte nance work described on a regular basis and to a professional standard Danger Risk of electric shock gt Always switch off all power supplies before carrying out any electrical instal lation or servicing work gt Check that there is no voltage gt Ensure that the power supplies are secured against being inadvertently switched on again Danger Risk of combustion due to hot pipes and components Pipes and components of the heat pump can become extremely hot during opera tion gt Allow the heat pump system to cool down sufficiently before inspection and maintenance work is started Only genuine Vaillant spare parts may be used for mainte nance and repair work to ensure long term correct opera tion of the geoTherm heat pump and to prevent the approved factory settings from being changed 96 Replacement parts An overview of the available genuine Vaillant spare parts can be obtained From your parts wholesaler Alternatively contact Spares Technical Enquiries on 01773 596615 or via email technicalspares groupserv ice co uk 10 2 Carrying out the inspection The
23. are closed gt Connect the filling pump s pressure line 67 to the stop valve 62 gt Connect a hose that leads to the brine fluid to the stop valve 72 gt Open the stop valves 62 and 72 gt Start the filling pump 67 in order to fill the brine circuit with the brine fluid from the brine container 66 via the dirt filter 33 gt Allow the filling pump 67 to run until there is no air in the brine fluid that escapes from the hose at the stop valve 72 gt Close the stop valve 62 gt Switch off the filling pump and close the stop valve 72 gt Remove the hose from the stop valve 72 Installation instructions geoTHERM 0020051574 03 41 6 3 4 Filling and bleeding the entire brine circuit in one operation 42a 6 3 Filling and bleeding the entire brine circuit in one operation gt Close the stop valves 63 70 and 72 gt Connect the filling pump s pressure line to the stop valve 62 gt Connect a hose that leads to the brine fluid to the stop valve 61 gt Open the stop valve 64 gt Open the stop valves 61 and 62 gt Start the filling pump 67 in order to fill the brine circuit with the brine fluid from the brine container 66 via the dirt filter 33 gt Allow the filling pump 67 to run until there is no air in the brine fluid that escapes from the hose at the stop valve 61 gt Close the stop valve 62 gt Switch off the filli
24. gt When installing the heat pump you must observe all installation instructions for parts and components of the heating installation These installation instructions are included with the individual parts of the heating installa tion and any supplementary components You must also observe all operating instructions that accompany the components of the heating installation 1 2 Document storage gt Pass these installation instructions and all other applica ble documents and if necessary any required tools to the system operator The system operator will be respon sible for storing them so that the instructions and tools are available when required 1 3 Symbols used The symbols used in the manual are explained below Dan ger symbols for identifying dangers are also used in this manual gt Ch 2 1 1 Symbol denoting additional useful tips and information gt Symbol for a required task 1 4 Applicability of the instructions These installation instructions apply only for heat pumps that have the following article numbers Type name Article number Brine Water Heat Pumps VWS VWS 220 2 0010002797 VWS 300 2 0010002798 VWS 380 2 0010002799 VWS 460 2 0010002800 Water Water Heat Pumps VWW VWW 220 2 0010002801 VWW 300 2 0010002802 VWW 380 2 0010002803 VWW 460 2 0010002804 1 1 Type designations and article numbers The 10 digit article number for the heat pum
25. where the water can reabsorb thermal energy from the surroundings The cycle starts again Installation instructions geoTHERM 0020051574 03 3 3 Design of the heat pump The Vaillant geoTHERM heat pump is available in the types listed below Type name Heating output kW Brine Water Heat Pumps VWS BO W35 AT 5K VWS 220 2 21 6 VWS 300 2 29 9 VWS 380 2 38 3 VWS 460 2 45 9 Water Water Heat Pumps VWW W10 W35 AT 5K 3 2 Type overview The heat pump can be operated at any normal electrical supply tariff 3 3 Front view Key 1 Sticker with the heat pump type designation 2 vrnetDIALOG mounting plate behind the cover column 3 Operating panel Installation instructions geoTHERM 0020051574 03 VWW 220 2 29 9 VWW 300 2 41 6 3 4 Rear view VWW 380 2 52 6 Key l 1 Cable feedthrough for electrical connections 2 From the heat pump to the heat source VWW 460 2 63 6 cold brine well water 3 From the heat source to the heat pump warm brine well water 4 Heating return 5 Heating flow 11 Assemblies Ww 7 Jau tgs a WIA N 9 o TS e 8 LA CN 3 5 Front view when open VWS Key v D JO Ui 00 ND 12 Electrical connections In rush current limiter Circuit breakers Identification plate Compressor Expansion valve Condensate pan Brine circuit filling and emptyin
26. 12 12 12 J12 Je T12 12 VF2 RF1 VF1 SP BUS pcF AF EVU 1xZP F2 F501 o X24 i do a sch ONL ooo o V2 2 3 SCH ONL ON L 21 oo e z3 33 L32 931 V3 9 28 27 26 25 24 748 Controller PCB Key Upper connection terminals PCB components 1 ZH External auxiliary heater 15 eBUS vrDIALOG 810 2 2 LP UV1 External 3 way diverter valve heating cylinder 16 Check LED for power supply lights green if OK charging for DHW loading 17 Fuse F2 T 44 250 V for controller PCB 3 ZP DHW circulation pump 18 Fuse F1 T 44 250 V for brine pump 4 SKZP VWW only Well pump circuit breaker 19 Monitoring of compressor phase sequence VWS only for external passive cooling Brine 20 Multiple connector for temperature sensors circuit pump cooling and heating cooling 21 eBUS plug controller signal and voltage supply diverter valves 22 Multiple connector for pressure sensors 5 HK2 P Second external heating circuit pump 6 HK2 Second external 3 way diverter valve or 3 way Lower connection terminals brine mixing valve depending on the hydraulic 24 ASB In rush current limiter
27. 26 VWW 460 2 9 9 Menu A Calling up Installation Assistent 88 Installation instructions geoTHERM 0020051574 03 Display shown Description Hydraulic scheme 17 without buffer tank without domestic hot water cylinder Fig 5 2 2 with buffer tank without domestic hot water cylinder Fig 5 3 3 without buffer tank with domestic hot water cylinder gt Fig 5 4 4 with buffer tank with domestic hot water cylinder or combination cylinder with solar and or drinking water station gt Fig 5 5 10 with buffer tank with domestic hot water cylinder or combination cylinder with solar and or drinking water station with external passive cooling gt Fig 5 6 Electric Wiring Diagram 1 all standard tariff gt Fig 7 3 2 low tariff for compressor Fig 7 5 Accept change YES NO YES means that all the set values will be saved Factory setting Installation Assistant A3 Auxiliary heater Integration of the Auxiliary heater intern Out T aux htr on 0 C Cylinder type Coil gt Select integration of the Auxiliary heater This setting determines if and where the auxiliary heating is hydraulically connected none Internal and external auxiliary heating disabled Caution Risk of damage caused by freezing In this setting there is no frost protec tion during emergency operation gt Do not deactivate the auxiliary heating if there is a risk of frost
28. 3605 55 807 55 2989 60 672 60 2490 65 562 65 2084 70 473 70 1753 75 400 75 1481 80 339 80 1256 85 289 85 1070 90 247 90 916 95 212 95 786 100 183 100 678 105 158 105 586 110 137 110 509 115 120 115 443 120 104 120 387 125 92 125 339 130 81 130 298 135 71 135 263 140 63 140 232 145 56 145 206 150 50 150 183 155 44 155 163 17 2 Appendix VR 11 sensor characteristics 121 VRC DCF outside temperature sensor Temperature C Resistance ohms 25 2167 20 2067 15 1976 10 1862 Kc 1 45 1619 5 1494 10 1387 15 1246 20 1128 25 1020 30 920 35 831 40 740 17 3 Appendix VRC DCF sensor characteristics 122 Installation instructions geoTHERM 0020051574 03 Heat pump schematic VWS 15 171 Appendix Heat pump scheme VWS 0 2 Key Heating supply line Heating circuit pressure sensor High pressure sensor High pressure switch Compressor Low pressure sensor Low pressure switch Brine circuit pressure sensor Evaporator OmANDURWN Installation instructions geoTHERM 0020051574 03 10 Brine circuit pump 11 Expansion valve 12 Filter drier 13 Condenser 14 heating circuit pump to be fitted on site 15 Heating return line 16 3 way heating cylinder charging diverter valve to be fitted on site 17 DHW return line 123 Heat pump schematic VWW
29. 7 12 Connecting limit thermostats VWS pr ber BENTL BERT Wis Toz cs B8 2 OO Oo goo BOO eoo E A 2 a Seel n loolooa SES 2o leo Bale oeooof rf 7 13 Connecting limit thermostats VWW Key Limit thermostat A limit thermostat on site can be connected as additional floor protection If there is a lock out due to the limit thermostats the con troller displays the error message 91 gt Ch 11 5 gt Remove the bypass pipework dashed line 2 gt Connect a limit thermostat to the terminals 1 Installation instructions geoTHERM 0020051574_03 53 7 3 7 Connecting a limit thermostat dual circuit supply PE s TZ NEE CCRN ECH goo B o lolol E illo i9 l9 S eL l9 S S OU O UO ORK EE EES o e ooo S W 714 Connecting limit thermostats VWS DIEM LIne deccm EB umiumzm E E oF oo eoo o CR BII E SS B S oe Z eoo E Ce 745 Connecting limit thermostats VWW Key gt Remove the bypass pipework dashed lines 2 gt Install a limit thermostat on the standard power supply SE for the auxiliary consumers in such a way that it inter Limit thermostat e e rupts the current carrying conductor gt Connect a limit thermostat to the terminals 1 A limit thermostat on site can be connected as additional floor protection If there is a lock out due to the limit thermostats the con troller displays the error messag
30. 9 Fig 7 1 or 8 Fig 7 2 on the overcurrent relay to set the breaking current to 1O 96 above the rated current of the well pump 0 8 2 7 A Installation instructions geoTHERM 0020051574 03 51 7 3 5 Connecting the external electric auxiliary heater optional UTE 400 V 400 V 50 Hz 3x13A i 2 OAA SONONE JOL VWS EIVTISCIOESINTZI eooooeoooo e Oo O O0O Bo Bg 999 9 a BAA AA AAAA 7 11 Connecting the external electric auxiliary heater optional VWW Caution Risk of damage from overload Key The maximum output of the electric auxil iary heater must not exceed 3 x 3 kW 3 x 13 A LI Electric auxiliary heating gt Protect the electric auxiliary heater using a safety thermostat to be fitted on site that does not automatically reset You can choose to connect an external electric auxiliary and has all poles disconnected heater to be fitted on site to the heating boost function in emergency operation gt Connect the electricity supply for the electric auxiliary heater 1 gt Connect the electric auxiliary heater yourself 2 52 Installation instructions geoTHERM 0020051574 03 7 3 6 Connecting the limit thermostat unblocked mains supply ET Etat SAEPE E 3 EEN EIER EE oe ooO Ooo aaa Doo Soll Elo 9 9 Doea Boo gooooloooo oo eoo oa BI MILI EAO OO ET
31. A Calling up Installation Assistent The Installation Assistent appears automatically when the heat pump is commissioned You are guided through the first two menus A1 and A2 You now have the opportunity to subsequently change the settings once more Installationsassistent A1 Sprache gt DE deutsch Standort SDE gt Sprache wahlen During the initial installation the controller always starts with this menu Installation Assistent Sprache Language Set the local language Standort Location only when a VPM S solar charging station is installed By inputting a loca tion in the form of a country code e g DE and using the time of day established by a DCF receiver an internal sun calendar in the solar station calculates the times of sunrise and sun set Testing the collector temperature by switch ing on the solar pump in 10 minute intervals is suspended at night time Installation Assistent A2 Appliance Code 5 Hydraulic scheme 6 Electric Wiring Diagram 1 Accept change YES gt Select The hydraulic and wiring systems must be adjusted by the installer during commissioning The Appliance Code has already been set in the factory and must not be changed After resetting to factory settings you must re input the value where required Appliance Code Type Designation 11 VWS 220 2 12 VWS 300 2 13 VWS 380 2 14 VWS 460 2 23 VWW 220 2 24 VWW 300 2 25 VWW 380 2
32. Details regarding the domestic hot water cylinder Domestic hot water cylinder type Domestic hot water cylinder capacity External electric auxiliary heating system Yes No Details regarding room thermostats VR 90 other none Details regarding the heat source system Details Ground probe number drilling depth spacing between probes Number of probes Spacing between probes Drilling depth of the probes Details regarding the ground collector Number of brine circuits Distance between the installed pipes Details Pipe diameter Installation depth of the collector in the ground Length of the longest brine circuit 16 1 Reference checklist Installation instructions geoTHERM 0020051574 03 119 Details for VWW Details Size of the mass flow rate which can be taken from the well Well water pump type Details regarding the heat consuming system If a second pump was incorporated to overcome the pressure losses Manufacturer and type of the second pump Details Heating load of the underfloor heating Heating load of the wall heating Heating load of the combination underfloor heating radiators Was a secondary return installed Yes No Commissioning of the heat pump installation Details Checks before handing over to the user Pressure of the heating circuit in a cold state Does the heating system get warm Does th
33. Installation instructions geoTHERM 0020051574 03 II 11 2 11 3 11 4 11 5 11 6 12 121 12 2 12 3 12 4 13 134 13 2 14 141 14 2 15 16 Fault diagnosis and rectification 98 Fault YPES E Faults in eBUS components sees Faults with temporary warning Fault with temporary switch off Fault with permanent switch off Other ertrorsdmaltunchlons Recycling and disposal 109 Disposing of the heat pump 109 Disposing of the packaging eese 109 Disposing of brine fluid VWS only 109 Arranging disposal of coolant sss 109 Customer service and guarantee 110 Vaillant warranty e essent 110 Vaillant Servic Eienaar 110 Technical dataene 111 Technical Data VWS sineret treten reete 1t Technical Data VWW 0 esecesececececceeseseseseeeeteteseees 114 Commissioning report sess 116 Reference ososoeeeepesenesepesenme een 118 Appendix Ven A ev ao ee oe Ree 121 GENEE edes 129 3 1 Notes on the documentation The following instructions are intended to guide you through the entire documentation Other documents are valid in connection with these installation instructions We accept no liability for any damage caused by failure to observe these instructions 1 1 Observing other applicable documents
34. LIMES NA I I 11 1 NN 7 7 Connecting the external heating circuit pump VWS B cio DEER EEN Ee Kee gocce PLLA CHE B NE aoee 7 8 Connecting the external heating circuit pump VWW Key gt Connect the external heating circuit pump to be fitted on site with Imax 2 A and Umax 230 V 1 If these values are exceeded install a relay circuit breaker that is to be C3 Pump heating circuit pump fitted on site and switch the pump using this 50 Installation instructions geoTHERM 0020051574 03 7 3 4 Connecting the external well pump VWW only Ua 230V L 5 A VWW 220 300 2 lra 8 5 A VWW 380 460 2 Gel ao o GG B 2 e ob O 7 9 Connecting the external well pump VWW only Key O Pump well water circuit pump A Heat source circuit The well pump is supplied with a three phase 400 V voltage via the well pump protector contactor 12 gt Fig 7 1 or 11 Fig 7 2 An overcurrent relay motor protection switch 10 gt Fig 7 1 or 9 Fig 7 2 secures the external well pump against overload gt Connect the well pump that is to be installed by the cus tomer to the terminals 1 Caution Risk of damage from overload The overcurrent relay motor protection switch must be correctly adjusted to the rated current of the well pump in order to protect the pump against overload gt Use the control button
35. Number 3 2 Functional principle The Vaillant geoTHERM heat pump VWS uses geothermal heat as its heat source whereas the geoTHERM heat pump VWW uses well groundwater Cold water ez Domestic hot water Heating installation Electric auxiliary heater Domestic hot water tank Heating cylinder charging diverter valve Heating circuit Condenser Coolant circuit Expansion Brine pump Well pump Heat source 3 2 Principle of operation of the heat pump The heat pump consists of separate circuits which are cou pled with one another by means of heat exchangers These circuits are The brine circuit with which the thermal energy is trans ferred from the heat source to the coolant circuit The coolant circuit which releases the thermal energy to the heating circuit by means of evaporation compres sion liquefaction and expansion The heating circuit which supplies the heating and DHW loading for the domestic hot water cylinder The evaporator 1 is used to connect the coolant circuit to the geothermal heat source from which it extracts thermal energy At the same time the physical state of the coolant changes it evaporates The condenser 3 is used to con nect the coolant circuit to the heating installation to which it releases the thermal energy again In so doing the cool ant becomes liquid again it condenses As thermal energ
36. accessory The following must be connected for the sample hydraulic scheme for hydraulic scheme 1 gt Fig 5 2 VRC DCF receiver with outside temperature sensor VF2 flow temperature sensor The following must be connected for the sample hydraulic scheme for hydraulic scheme 2 Fig 5 3 VRC DCF receiver with outside temperature sensor VF2 flow temperature sensor VFI flow temperature sensor buffer tank RF1 Return temperature sensor buffer tank The following must be connected for the sample hydraulic scheme for hydraulic scheme 3 Fig 5 4 VRC DCF receiver with outside temperature sensor VF2 flow temperature sensor DHW tank sensor SP The following must be connected for the sample hydraulic scheme for hydraulic scheme 4 gt Fig 5 5 VRC DCF receiver with outside temperature sensor VF2 flow temperature sensor DHW tank sensor SP VFI flow temperature sensor buffer tank RF1 Return temperature sensor buffer tank The following must be connected for the sample hydraulic scheme for hydraulic scheme 10 gt Fig 5 6 VRC DCF receiver with outside temperature sensor VF2 flow temperature sensor DHW tank sensor SP VFI flow temperature sensor buffer tank RF1 Return temperature sensor buffer tank 58 7 5 1 Installing the VR 10 The VR 10 standard sensor is designed in such a way that it can be fitted in three different positions depending on your requirements as an immersion sensor
37. below gt f you do not use the optional accessory heat pump brine filling unit for heat pumps 56 gt Fig 5 5 install the individual hydraulic components accordingly gt Fig 5 9 gt Connect a limit thermostat to ensure the underfloor heating function on the heat pump gt Connect the VF2 flow temperature sensor to ensure the integral energy function gt When starting up the unit set Hydraulic Scheme No 4 in the controller You can choose to use the VPS 2 multi storage tank as a DHW tank gt When connecting the hydraulics observe the gt installation instructions for the cylinder and the geoTHERM planning information The 1 diverter valve supplied in the VPS 2 multi storage tank must be replaced by two 3 way diverter valves that must be installed on site The diverter valves must be con nected to the LP UV1 terminal on the controller PCB 2 Fig 7 18 As of VWS VWW 380 2 the VPS 2 1500 multi storage tank must be used 30 The following only applies when installing the optional external passive cooling Caution Risk of malfunction in cooling mode The buffer tank must not be in operation during the cooling mode of the heat pump gt Install a motor driven 3 way diverter valve in both the flow and return so that the buffer tank is avoided in cooling mode Caution Schematic only These examples of hydraulic schemes do not contain all of the shut off and safety instruments that ar
38. below 50 kPa 0 5 bar and on again if the water pressure is above 70 kPa 0 7 bar Pump seizing and valve seizing protection In order to prevent a circulation pump or all diverter valves from jamming the pump and the valves that have not been operated for 24 hrs are switched on every day in succession for a duration of approx 20 seconds Protection against loss of brine VWS only A pressure sensor monitors a possible brine shortage and switches the heat pump off if the brine pressure falls below 20 kPa 0 2 bar only once The fault 91 is displayed in the Error History The heat pump switches back on automatically when the brine pressure rises above 40 kPa 0 4 bar If the brine pressure drops below 60 kPa 0 6 bar for a duration of more than one minute a warning message appears in Menu E gt operating instructions Underfloor protective circuit for all hydraulic devices without buffer tank hydraulics diagram 1 and 3 If the heater flow temperature in the underfloor heater cir cuit which is measured by the sensor VF2 continuously exceeds a value max CH temperature compressor hys teresis 2 K factory setting 52 C for more than 15 min utes the heat pump switches itself off with the error mes sage 72 gt Ch 11 5 When the heating flow temperature falls below this value again and the error has been reset the heat pump switches back on 70 Caution Risk of damage caused by too high a switch off val
39. code Error text description 32 Error heat source sen sor T8 Short circuit disconnec tion in the sensor Emergency mode possible Possible cause The internal temperature sensor for the brine outlet temperature is faulty or not plugged in cor rectly on the circuit board Solution gt Check the quality of plug contact on the circuit board and on the cable har ness gt Check sensors for correct operation resistance measurement based on VR 11 characteristics Tab 17 2 gt Replace the sensors 33 Error heat circuit pressure sensor Short circuit disconnec tion in the pressure sensor The pressure sensor in the heat ing circuit is faulty or not prop erly plugged in 34 Error brine pressure sen sor VWS only Short circuit disconnec tion in the pressure sensor 40 Error comp outlet sensor TI Short circuit disconnec tion in the sensor possible possible The pressure sensor in the brine circuit is faulty or not properly plugged in The internal temperature sensor on the high pressure side of the compressor is faulty or not prop erly plugged into the PCB 41 Error heat source sen sor T3 Short circuit disconnec tion in the sensor possible The internal temperature sensor for the brine inlet temperature is faulty or not plugged in correctly on the circuit board 42 Error HP return sensor T5 Short circuit disconnec tion in the sensor possible T
40. cooling request based on the room temperature is that the 24 hr outside temperature mean value is sufficiently high less than 5K below the cooling start limit for the outside temperature dependent cooling Remote control Automatically indicates whether a VR 90 remote control unit is connected YES NO If YES the room temperature measured at the VR 90 is also displayed This menu may appear repeatedly for every heating circuit with remote control Factory setting none 3K 9 6 Menu C Set parameters for the heating system Installation instructions geoTHERM 0020051574 03 79 Display shown Description Factory setting Special function C6 Day You can select the start day for floor drying 0 Floor drying Temp The temperature for the flow target tempera Day Temp ture is called up automatically according to the HK2 D 0 C floor drying function day values 25 30 35 C HK3 gt Ch 9 3 2 HK It takes approx 20 seconds for the actual value to be displayed gt Set starting day Deactivating floor drying function set to Day O Depending on the configuration of the heating sys tem the display will indicate for other heating circuits if required Auxiliary heater C7 Aux on during CH no CH CH blocked no CH Aux on peak rate gt NO comfort CH is enabled depending on the bivalence Aux on during CH no CH point and energy integral or buffer cylinder
41. display Faults on components which are connected via eBUS Faults with a consequent temporary warning message The heat pump remains in operation and is not switched off Faults with consequent temporary switch off The heat pump is temporarily switched off and starts running again of its own accord The fault is displayed and disappears automatically when the cause of the fault is no longer present or has been eliminated Faults with consequent permanent switch off The heat pump is permanently switched off The heat pump can be started again after the cause of the fault has been rectified and the fault reset in the Error History Menu I 1 gt Tab 9 8 In addition other types of fault malfunction may occur in the heat pump or heating system 98 Installation instructions geoTHERM 0020051574 03 11 2 Faults in eBUS components Fault code Error text description Possible cause Solution 1 XXX address YY not achievable A component XXX connected via the gt Check the eBUS lead and plug eBUS e g VR 60 with the address gt Check that the address switch is correctly YY is not recognised set 4 XXX Address YY Sensor A sensor ZZZ of one of the compo gt Check the Pro E plugs on the circuit boards fault ZZZ nents XXX connected via the eBUS gt Check the sensors for correct operation with the address YY is faulty gt Replace the sensors 5 XXXX setpoint not achieved XXXX setpoint not achieved gt Check the temperature ta
42. e g as a tank sensor to a tank sensor pocket asa flow sensor in a hydraulic switch asa clamp on sensor on the heating pipe in the supply or return 4 E 31 749 Installing the VR 10 standard sensor as a clamp on sensor You can use the enclosed strap to secure the sensor as a clamp on sensor to the heating pipe in the supply or return We recommend that the pipe together with the sensor be insulated to ensure optimum temperature measurement gt Install the VR 10 standard sensor s in accordance with the requirements of the hydraulic scheme and connect it to the respective terminals on the controller PCB gt Fig 748 The controller automatically recognises the supplied sensor VR 10 sensors do not have to be registered or configured 7 5 2 Installing the VRC DCF The supplied VRC DC receiver must always be installed even if another DCF receiver is already installed This can not be used for the heat pump This also applies for sys tems that have a fixed value configuration and systems that have the VRC 620 630 bus modular control system Caution Risk of malfunction If the supplied VRC DCF receiver with exter nal sensor has not been installed the oper ating panel display shows a temperature of 60 C It is not possible to correctly control the flow temperature and the external elec tric auxiliary heating No warning message is recorded in the Error History gt Install
43. mode and target room temperature to be set and if required it uses the installed room temperature sensor to take the room tem perature into consideration In addition the switch on room temp must be set in the controller for the heat pump menu C5 gt Tab 9 6 or in the VR 90 In each case you can set the parameters for the relevant heating circuit time programme heating curve etc and select special functions Party etc In addition it is possible to query the heating circuit and to display service and fault messages 60 To fit the VR 90 remote control unit see its enclosed installation instructions The VR 90 remote control units communicate with the heating controller via the eBus You can connect them to any interface in the system You need only to ensure that the eBUS interface is connected to the heat pump control ler HE SS el pelea P peg p Tz 12 gt DCFO AF BUS m Ez eBUS 7 21 Installing remote control units The structure of the Vaillant system allows you to lay the eBus from component to component gt Fig 7 21 Switching the lines therefore does not impair communication All eBus connector plugs are designed to allow you to wire at least 2 x 0 75 mm for each connection lead The use of cable with a cross section of 2 x 0 75 mm is therefore recommended for eBUS cables Setting the
44. new units with clean heat exchangers W10 W35 AT 5K In accordance with DIN EN 14511 Heating output kW 299 416 52 6 63 6 Power consumption kW 5 8 78 98 12 4 Output figure coefficient of perform 5 2 5 3 53 541 ance COP W10 W35 AT 10K In accordance with DIN EN 255 Heating output kW 30 2 42 4 52 3 64 7 Power consumption kW 5 5 7 5 9 4 12 0 Output figure coefficient of perform 5 5 5 7 5 5 5 4 ance COP W10 W55 AT 5K In accordance with DIN EN 14511 Heating output kW 269 37 2 47 4 57 3 Power consumption kW 7 6 10 4 12 9 15 8 Output figure coefficient of perform B 3 5 3 6 3 6 3 6 ance COP Interior noise level dB A 63 63 63 65 W10 W35 in accordance with EN 12102 Installation location Interior dry permitted ambient temperature ec 7 25 Application limits At the same volume flow rates as for W7 W25 the nominal output test under standard W7 W62 nominal conditions with nominal vol W20 W62 ume flow rates and a spread of AT 3K in W20 W35 the brine circuit and AT 5K in the heat W10 W25 Operation of the pump outside the application limits results in the heat pump being switched off by the internal control and safety installations 14 2 Technical Data VWW Installation instructions geoTHERM 0020051574 03 115 15 Commissioning report gt Fill out the following report form before you commission the heat pump gt Only operate the heat pump when all points have been satisfied in essence
45. the heat deficiency The larger the preset negative numerical value is the longer the periods for which the compressor is kept running or at standstill 9 4 3 Flow target temperature control hydraulics diagram 2 4 or 10 If you have connected a VR 90 remote control unit you must not configure it as a thermostat controller otherwise the benefits of energy bal ancing will be lost If you have installed a heating system according to the hydraulics diagram example for hydraulics diagram 2 4 or 10 gt Ch 5 2 5 4 and 5 5 the controller performs a flow tar get temperature adjustment The buffer tank is controlled depending on the supply set target temperature The heat pump heats when the tempera ture of the VF1 flow temperature sensor of the buffer tank is lower than the target temperature It heats for as long as it takes the return temperature sensor RF1 of the buffer tank to reach the target temperature plus 2 K Installation instructions geoTHERM 0020051574 03 9 5 Controller structure The basic display can be seen as a graphics display This is the starting point for all available menus Controller operation is described in detail in the operat ing instructions If when setting values you do not activate any adjuster for 15 minutes the basic display will automatically reappear The controller structure has three levels The operator level is intended for the operator operat ing instructions The cod
46. the supplied VRC DCF receiver with external sensor Installation instructions geoTHERM 0020051574 03 DCFO AF QUS DCF AF 7 20 Connecting the VRC DCF receiver gt Fit the VRC DCF receiver in accordance with its enclosed installation manual gt Wire the VRC DCF receiver accordingly gt Fig 7 20 Left enclosed VRC DCF receiver with integrated out door sensor Right special solution with outdoor sensor optional accessory A special solution with outdoor sensor VRC 693 is required if for example radio reception is only transmitted at an installation location that is exposed to sun operating and installation instructions VRC 693 7 6 Installing accessories that are absolutely necessary Hydraulic Schemes 1 and 3 For Hydraulic Schemes 1 and 3 the following additional accessories must be connected as required components that are not included in the scope of delivery A limit thermostat An external heating circuit pump Hydraulic Scheme 3 only An external heating cylinder charging diverter valve VWW only A well pump gt Fit a limit thermostat 19 Fig 5 2 and gt Fig 5 4 gt Depending on the mains supply connect the limit ther mostat as described in Ch 7 3 6 or gt Ch 7 3 7 gt Fit an external heating circuit pump in the supply gt Connect the external heating circuit pump as described in gt Ch 7 3 3 Additional information
47. 15 C 69 Caution Risk of damage due to freezing This function is not active if the value none is set in the Menu A3 Tab 9 9 hydraulic integration of the auxiliary heater for the auxiliary heater In this case an exter nal electric auxiliary heater cannot support low temperature operation nor is emergency operation after a fault leading to permanent deactivation or the emergency frost protec tion function possible Parts of the hydraulic system are not pro tected if the values Hot water CH or DHW CH external auxiliary heater have been set gt You must ensure the hydraulic integra tion of the auxiliary heating system in the Menu A3 Tab 9 9 You can change the maximum heater flow temperature using the parameter maximum heater circuit via vrDIALOG An incorporated limit thermostat is used as an additional safeguard It switches the external heating circuit pump off when the set switch off temperature is reached During direct heating mode it switches off the internal unit perma nently Testing the external sensors The hydraulic basic circuit given by you during commission ing determines the required sensors The heat pump perma nently and automatically checks that all sensors are installed and operational Protection from loss of heating water An analogue pressure sensor monitors a possible water shortage and switches the heat pump off if the water pres sure is
48. 387 ready for operation kg 341 359 386 414 Electrical data Nominal voltage Measuring voltage Compressor 3 N PE 400V 50Hz Control circuit 1 N PE 230V 50Hz Brine pump 1 N PE 230V 50Hz 3 N PE 400V 50Hz CH pump on site 1 N PE 230V 50Hz max 2 A Auxiliary heater system on site 3 N PE 400V 50Hz Power factor cos 0 7 0 84 0 72 0 83 0 76 0 86 0 75 0 86 Required max network impedance With factory set in rush current limiter Ohm 0 472 0 450 0 270 0 100 Fuse Trigger characteristics C three pole switching disconnection of the three mains connection lines by a switching operation Breaking current A 20 25 32 40 Start up current without in rush current limiter A 99 127 167 198 With factory set in rush current limiter A 44 65 85 110 Electrical power consumption min at B 5 W35 kW 5 0 6 4 8 5 101 max at B20 W60 kW 10 0 12 0 16 0 18 0 Auxiliary heater system on site max kW 3x 2 3 3x 2 3 3x 2 3 3x 2 3 EN 60529 level of protection IP 20 Hydraulic connections Heating circuit flow and return Inch mm G 11 2 DN 32 Heat source flow and return Inch mm G 11 2 DN 32 141 Technical Data VWS Installation instructions geoTHERM 0020051574_03 111 Description Unit VWS 220 2 VWS 300 2 VWS 380 2 VWS 460 2 Heat source circuit Brine circuit Brine type brine concentration max operating pressure min inlet temperatur
49. 5259 sgy 9 5 s PA ZES E 5g e d H t ET SE Ek x za ZS o uv ED E29 i cC x O 55 Tg ol LE SG Den as e oc vo o c c GU Sp S e e ge GEES SE o 3o0 5 OI FO ox cu gt LN 5 5 orange FRES 2 black S BEBO black 3 ac ac 5 i EE en E E ONS E Se grey L2 5 E 8 5o osco brown L1 oa ol PE o el H HO High pressure Pressure sensor ER e sensor a n ONES SPQ Oln za 5 HE Pressure sensor H Brine circuit nef on S H5 Heating circuit BB Low pressure S385 ERS D sensor 5 98r um 2 nti gg I ORG S g 22 a0 ojs a is Pressure Sla 5g sensors Sa E na E ud 2 Siss Hd ES Oje ri Sz e Es Oj gt ING E brown ZS FL zl S o ZIS Sj e als Qing o TS p Pe oj gt 8 L wie m amp z s 285 T4A 250 V o ooa alg SRo 6 Je etc S72 GER ele grange 5 9 alo orange S es Are brown Ojz X F nz x use ellow greej S ur T4A 250 V oje S 8 a Deeg ale brown i Ozg9 x le blue Ee SJ AR ellow gree g E 5 I 3 v Glo brown SIS a A leg CIS blue sja ef SJ 9 AR ellow greej E e fole Sz Ee L blue promn L or NZ E S RE als PE yellow green PE tllo r en brown u brown ni white als P z blue r white ig Lei ellow greej 17 3 Appendix Electrical circuit diagram VWS 220 2 VWS 300 2 Installation instructions geoTHERM 0020051574 03 125
50. 8 Installation instructions For the heating engineer Installation instructions geoTHERM Heat pump E Vaillant Contents 11 1 2 1 3 1 4 1 5 24 241 24 2 2 2 2 3 2 4 2 5 31 32 3 3 3 4 44 4 2 4 3 4 4 4 5 4 6 4 7 4 8 51 5441 5 1 2 5 2 5 2 1 52 2 5 3 5 3 1 5 3 2 5 4 DA 5 4 2 Notes on the documentation 4 Observing other applicable documents 4 Document storage iania 4 Symbols use REENEN sess m Applicability of the instructions T ud CE label ict tte tete vetet e HR e HRS 5 Safety instructions and regulations 6 Safety and warning information D Classification of warnings EE Structure of WarningS EE Intended USC re une EEN General safety instructions eese Safety instructions regarding coolant ae Regulations rules guidelines esses Description of functions and units Identification plate Functional principle A e Design of the heat pump Optional accessories ENEE 13 Installation eee Requirements for the installation site Requirements for the well water quality VWW Only iiec eto aeta tnt retro toe Fog ena d Dimensions and clearances Requirements for the heating circuit 17 Check the scope of delivery EN 18 Removing the transport locks NEEN 19 Transporting the heat pump
51. Check circuit breaker F1 and replace if necessary gt Check the brine pressure switch or limit thermostat Installation instructions geoTHERM 0020051574 03 Fault code Error text description emergency Possible cause Solution mode 94 Phase loss Check fuse possible Loss of a phase or a fuse has gt Check fuses and cable connections tripped power supply to the compressor One or more phases have failed S i S Badly tightened electrical con Check electrical connections nections Mains voltage too low Measure voltage at heat pump termi nal box Energy supply company switch Check the setting of the wiring dia off to incorrectly set electric wir gram ing diagram e g Electric Wiring Diagram 1 In rush current limiter faulty or Check the in rush current limiter and incorrectly connected inform the factory customer service department if necessary 95 Incorrect compressor possible No voltage temporary switch off Connect the contact of the ripple con direction of rotation by energy supply company trol receiver to terminal 13 Correct the phase sequence Phases switched over Change the phase sequence by switching over 2 phases at a time on Phase sequence incorrect the mains feed In rush current limiter faulty or Check the in rush current limiter and incorrectly connected inform the factory customer service department if necessary 96 Coolant circuit pressure possible A pressure sensor in
52. Error flow sensor VF2 Short circuit disconnec tion in the sensor 11 4 Fault with permanent switch off 104 possible Hot water mode possi ble The return temperature sensor of the buffer tank is faulty or the connection is incorrect The clamp on temperature sensor VF2 in the heating circuit is faulty or it is not connected correctly gt Check the Pro E plug on the circuit board gt Check sensors for correct operation resistance measurement based on VR 10 characteristics Tab 17 1 gt Replace the sensors Installation instructions geoTHERM 0020051574 03 Emergency Fault code Error text description GAS Possible cause Solution 52 Sensors do not match the Hydraulics diagram incorrectly gt Check the hydraulics diagram and hydraulic scheme inputted Sensors not connected sensor positions based on the existing correctly heating system 60 Heat source frost protect possible monitoring source outlet Error 20 has occurred See Error 20 See Error 20 three times in a row 61 Heat source frost protect possible VWW only monitoring source outlet Eat ag occurred See Error 21 See Error 21 three times in succession 62 Heat source frost protect possible VWS only monitoring source outlet See Error 22 See Error 22 Error 22 has occurred three times in a row 63 No ground water flow possible VWW only Fault 23 has occurred See Error 23 See Error 23 three times in succ
53. Fit the heating flow and return and all the components gt Dimension and fit an external heating circuit pump to be fitted on site gt f required fit a heating cylinder charging diverter valve to be fitted on site gt Connect the flow pipe 1 Fig 5 8 gt Connect the return pipe 2 Fig 5 8 Installation instructions geoTHERM 0020051574 03 5 9 Fittings in the brine circuit Key 42a Expansion relief valve 48 Pressure gauge 56 Heat pumps for brine filling unit 57 Brine expansion tank 61 Stop valve 62 Stop valve 63 Stop valve 64 Stop valve 65 Brine collecting tank 70 Stop valve 72 Stop valve Vaillant recommends that you install the Vaillant heat pump brine filling unit By doing this it is then possible to carry out a preparatory partial bleed of the brine circuit e g the flow and return lines of the brine circuit to the unit gt When installing this observe the gt installation instruc tions for the heat pump brine filling unit 35 Caution Risk of malfunction Dirt filters may lead to flow rate problems and a reduction in the residual pump head for the brine pump gt Do not install dirt filters for a prolonged period in the brine circuit The brine fluid is cleaned during the filling process Caution Risk of damage caused by the formation of condensation Condensation on uninsulated brine pipe lines within the building may lead to struc tural damage
54. Interface 1 3 04 VR 2U VR 90 displays the software release when a VR 90 is connected date Compressor hours 7 hours Compressor starts Number of compressor starts to Compressor starts 33 date Auxiliary heater operation 2 hours Auxiliary heater starts 21 Auxiliary heater operation Auxiliary heater operat ing hours to date Auxiliary heater starts Number of auxiliary heating starts to date UO card Software release I O card PCB in the heat Software versions I3 pump UO card 1 4 04 User interface User interface software version dis play in the operating panel 9 8 Menu I Displaying general information 86 Installation instructions geoTHERM 0020051574 03 Display shown l4 Reset NO Code f 0000 Code 2 FFFF Codes accepted NO gt Select Description Reset Resetting fault messages with consequent switch off All functions currently in progress are immediately disconnected The heat pump starts up again Caution Risk of damage to the heat pump Incorrect settings damage the heat pump gt On no account must the Code val ues be changed Code 1 Code 2 Values must not be changed Factory setting 0000 FFFF NO 9 8 Menu I Displaying general information Installation instructions geoTHERM 0020051574 03 87 9 7 4 Menu A Calling up Installation Assistent Display shown Description Factory setting Menu
55. JaduJaj Mo 4 Josuas aJnjeJeduJa MOJ Josues aunjesadwa JapuljAd Huljoos aAjeA Ja1J9AIq Josuas ainjesadwa uinjay AJLA Ja JaAIp Hulbseyd JapuljAd Hulyeay duund jindu19 DurjeaH E ger dZ HZ ZAA LJA R I IA dS d eMS 144 IAn d1 dn A OEZ duund 1in2Ji DurjeaH duund 1in2Ji DurjeaH JaxiuJ 31n2J12 Hulzeay Jaxiui 31n2J12 BurjeaH IND4ID Huljood exi Un Burjooo duind up 6uinoajoo aug dej ebeuieJp pue bulji yue uoisuedxa aug yun uii auu0 104 sduind jeay uonoeuuoo 1972M dnoJ6 Ajajes yuez uoisuedxa wpesydeip 1942M JOH yue uoisuedxe wpesydeip N3119 Hulyeay DAJEA Jo l uoisuedx3 Huljood assed abueyoxa 1eaH 9AJeA dojs pedde5 je1sou18u WNWIXeW JOSUAS eJnjeJaduJ8j apis ho YUM JAAIBIII 4DG DYA a NPOW Jaxiul Q9 MA yun JOJJUOD BJOWASI Q6 MA J8j 013u02 e2uej eq AD1jeue pajoJ1uoo JaujeaM Japul Ad J9 eM joy 2i seuloq JapuljAd Jong Z SdA MOLSIIe 2 0 SMA duind jeay WYAH L086 d X4H qH eH 19 99 S9 8S 1S 9S tv ev qzy eev OV ce 6l 9l ael eel l e st 10 Aay t with buffer ircui 5 6 Sample hydraulic scheme The mixed c tank DHW tank and external passive cooling 33 Installation instructions geoTHERM 0020051574 03 5 6 Fitting the flexible connecting hoses Caution Risk of damage caused by leaks used on the connections for the brine cir cuit well water circuit 3 and 4 Fig 5 8 this may lead to leaks gt Ensure that
56. a filling pump that can bleed the brine circuit at the same time as it fills it Vaillant recommends the Vaillant fill ing device mobile with dirt filter or the Vaillant filling pump The individual steps of the filling and bleeding procedure when using the Vaillant heat pump brine filling unit are described below The brine filling unit allows you to carry out a preparatory partial bleed of the brine circuit and to fill and bleed in one operation 39 The brine fluid consists of water mixed with a heat transfer fluid concentrate We recommend that you add propylene glycol alternatively ethylene glycol with corrosion inhibit ing additives The brine fluids that may be used differ greatly from region to region Please find out about this from the authorities responsible Only the following brine fluids are authorised by Vaillant for operation of the heat pump Aqueous solution with 30 96 1 96 vol ethylene glycol Aqueous solution with 33 96 1 96 vol propylene glycol Aqueous solution with 20 96 1 96 vol ethanol Ready to use potassium carbonate water solution Caution Risk of damage caused by leaking If external passive cooling is installed and if you use potassium carbonate as a compo nent of the brine fluid this may lead to interactions with the sealing plastics that are used in the mixer valve gt f external passive cooling is installed you must only use ethylene glycol pro pylene glycol o
57. aj oJ1uo2 JaujeaM JapuljAd Jong Z SdA MOLSIIe 2 0 SMA duind jeay WYAH Leb sna z o a N L o 2 m N m gt o I N ect ect BCL gel ZAA L4A q4A HIA 148 dn d 2H d QXH d EXH cH qxH eH S9 8S 1S 9S qzy eev ce 6l ol Gel eel Di Aay th buffer tank t wi 5 3 Sample hydraulic scheme Mixed circu 27 Installation instructions geoTHERM 0020051574 03 5 3 Installing the direct heating mode and DHW tank 5 3 1 Description of functions for the direct heating mode and DHW tank domestic hot water cylinder The underfloor heating circuits are connected directly to the heat pump By default this is controlled by an energy balance controller Ch 9 4 2 The heat pump also operates a DHW tank 5 3 2 Installation instructions Y Install the hydraulic components in accordance with the local requirements and as shown in the sample hydraulic scheme below gt f you do not use the optional accessory heat pump brine filling unit for heat pumps 56 Fig 5 4 install the individual hydraulic components accordingly Fig 5 9 gt Connect a limit thermostat to ensure the underfloor heating function on the heat pump gt Connect the VF2 flow temperature sensor to ensure the integral energy function gt When starting up the unit set Hydraulic Scheme No 3 in the controller gt Ensur
58. ajoo euug de abeuleup pue Duuu yue uoisuedxa aug yun Bui auug 104 sdund jeaH 9AJ eA ssed Ag uonoeuuoo 1972M dnoJ6 Ajajes yuez uoisuedxa wpesydeip 1942M JOH yuez uoisuedxe wpesydeip yind419 Hulyeay AJLA 4 lj 1 uoisuedx3 9 J eA dojs pedde5 je1souu18u WNWIXeW JOSUAS aJnjeJaduJaj apis ho YUM JAAIBIII 4DG DYA J8j 043u02 aduejeg AbJauUa Pa OujJUOI JaYyJEaM Japul Ad Ja em joy d1jsawog 2 0 SMA duind jeay WYAH Loeb dZ HZ ZAA dS IAn d dn S89 8S LS 9S OS ev ev qzy eev ce 6l ol l Aay 5 4 Sample hydraulic scheme The direct heating mode and DHW tank 29 Installation instructions geoTHERM 0020051574 03 5 4 Installing the mixed circuit with buffer tank and DHW tank 5 41 Description of functions for the heating mode with buffer tank and DHW tank The heating circuits are connected as a separating tank to the heat pump via a buffer tank and are operated using an external heating circuit pump via a heating circuit mixer By default this is controlled by a flow temperature setpoint control Ch 9 4 3 The VF2 flow temperature sensor sits behind the external heating circuit pump underfloor protective circuit The heat pump responds to a demand for heat from the buffer tank The heat pump also operates a DHW tank 5 4 2 Installation instructions Y Install the hydraulic components in accordance with the local requirements and as shown in the sample hydraulic scheme
59. any electrical installation or servicing work gt Check that there is no voltage gt Make sure that they are secured against inadvertent switching on again Preventing chemical burns Brine fluids are harmful to health gt Avoid contact with the skin and eyes Do not inhale or swallow Always wear gloves and protective goggles Observe the safety data sheet that accompanies the brine fluid Yv y Preventing damage Unsuitable frost or corrosion protection agents may dam age seals and other components of the heating circuit and may therefore also cause leaks in the water out let gt Only add permitted frost or corrosion protection agents to the heating water VWW only If the water is of poor quality this may lead to damage to the suction well the pipes and the evaporator in the water pump gt Check that the quality level of the water that is drawn in is sufficient VWS only Frost may cause damage to seals and other components of the brine circuit gt Add permitted frost protection agents that ensure frost protection up to 15 C to the brine fluid gt Ch 6 3 If external passive cooling is installed If the pipes of the heating circuit are not sufficiently insu lated and if the flow temperatures are below 20 C this may cause the cooling to fall below the dew point and may lead to condensation forming gt Insulate all of the pipes in the heating circuit using vapour diffusion tight i
60. apes the lig uid level in the brine expansion tank falls and must be filled up again gt Ch 6 3 gt Open the expansion relief valve on the brine expansion tank 42a gt Fig 5 9 in order to allow any overpres sure to escape if it is above the required fill pressure of 200 kPa 2 0 bar and below the expansion relief valve s operating pressure of 300 kPa 3 bar The brine expan sion tank must be 2 3 full of fluid Check the filling level of the brine fluid In the first month after commissioning the heating installa tion the filling level for the brine fluid may fall slightly and this is completely normal Although the filling level can also vary depending on the temperature of the heat source However it must never sink so far that it is no longer visible in the expansion tank The filling level is correct when the brine expansion tank is 2 3 full gt Refill the brine fluid if the filling level falls so low that it can hardly be seen in the brine expansion tank 8 1 5 Checking and bleeding the heating circuit If you have to manually operate the heating circuit pump and all of the diverter valves to bleed the heating circuit use the menu A5 A6 to do this Ch 9 7 4 8 1 6 Bleeding the DHW tank if required If an external DHW tank is connected gt Open all domestic hot water draw off points in the building gt Close all draw off points as soon as hot water escapes 68 8 2 Handing the heating installa
61. ata VWW 114 Cu CuZn Alloy Stainless Steel Fe EPDM Installation instructions geoTHERM 0020051574 03 ing circuit Description Unit VWW 220 2 VWW 300 2 VWW 380 2 VWW 460 2 Heating circuit Permitted water condition Do not enrich heating water with frost or corrosion protection agents Soften the heating water at water hardnesses from 3 0 mmol l 16 89 dH according to Directive VDI2035 sheet 1 max operating pressure MPa bar 0 3 3 min flow temperature ec 25 max flow temperature ec 62 Volume of water content of the brine I 8 3 10 3 12 0 141 circuit in the heat pump Nominal volumetric flow rate AT 5K m h 5410 6 96 8 70 10 44 Pressure loss at nominal volumetric kPa mbar 12 6 126 15 2 152 21 8 218 30 3 303 flow rate AT 5K Nominal volumetric flow rate AT 10K m h 2 60 3 60 4 50 5 52 Pressure loss at nominal volumetric kPa mbar 3 9 39 4 5 45 6 7 67 9 6 96 flow rate AT 10K Heating circuit materials within the z Cu CuZn Alloy Stainless Steel Fe EPDM heat pump Coolant circuit coolant type R407 C Quantity kg 4 3 5 99 6 7 8 6 Number of revolutions EX valve S 8 5 9 5 8 5 9 5 Permissible operating overpressure MPa bar 29 29 Compressor type D Scroll Oil Ester EMKARATE RL32 3MAF Oil filling quantity 4 0 4 0 414 414 Heat pump performance data The following performance data is applicable to
62. ating system and to the pattern of use In the following chapter all the functions of the weather controlled energy balance controller will be explained 9 1 Operating modes and functions Five operation modes are available for each heating circuit Auto The operation of the heating circuit alternates between the Heating and Energy sav operation modes according to a settable time programme Eco The operation of the heating circuit alternates between the Heating and Off operation modes according to a settable time programme The heating cir cuit is switched off in the energy saving period provided the frost protection function depending on the outside temperature is not enabled Energy sav The heating circuit operates at the set back temperature regardless of any settable timer pro gramme Heating The heating circuit is operated at the flow tar get value independently of any settable timer pro gramme Off The heating circuit does not operate provided the frost protection function depending on the outside tem perature is not enabled Three operation modes are available for connected domes tic hot water cylinders Auto Cylinder charging or enablement for the circula tion pump is released according to a settable time pro gramme On Cylinder charging is permanently enabled i e the cylinder is immediately reheated as required The circula tion pump is permanently in operation O
63. aux on peak rate This setting has precedence over the set tings for Aux on during CH and Aux on during DHW The set auxiliary heating permanently ensures the heating up of the heating water and hot water up to the set target values If the internal additional electric heating has been hydraulically integrated as auxil iary heating factory setting this may lead to high energy costs Not applicable for VWS VWW 0 2 Factory setting NO Auxiliary heater C7 Hysteresis aux heating 5K gt Select Cooling c8 Flow temperature Cooling Hours 22 C gt Select Auxiliary heating hysteresis Forced switching on of the auxiliary heating if Actual flow temperature lt target flow tempera ture minus hysteresis Forced switching off of the auxiliary heating if Actual flow temperature gt target flow tempera ture plus hysteresis After 15 minutes compressor mode applies for all system hydraulics The amount of time until the auxiliary heating can start can be read from Menu D3 Only if external passive cooling is installed VWS only Flow temperature Display of target flow tempera ture The value can be changed Caution Risk of damage caused by fall in temperature below thawing point and formation of condensation Adequate cooling is guaranteed even at a cooling mode flow temperature of 20 C gt Do not set the cooling mode flow tempera
64. ave the leak tightness of the system checked by qualified personnel once a year VWS VWW 380 2 and 460 2 only Check all components of the coolant circuit for corrosion and wear Check the coolant circuit for leak tightness Installation instructions geoTHERM 0020051574 03 10 4 Carrying out a restart and trial operation Danger Risk of injury due to hot and cold compo nents The heat pump may only be put into opera tion after all the cladding sections have been fitted gt Before restating refit any heat pump panel parts which may have been removed as described in Ch 7 9 gt Start the heat pump gt Check the heat pump for faultless operation Installation instructions geoTHERM 0020051574 03 97 11 Fault diagnosis and rectification Danger Risk of damage and personal injury due to incorrect fault diagnosis and improper rectification Operations for fault diagnosis and fault rec tification must only be performed by an approved heating engineer gt Carry out the operations described in a professional manner Danger Risk of electric shock gt Always switch off all power supplies before starting work on the heat pump gt Make sure that they are secured against inadvertent switching on again 11 1 Fault types To call up the Error History see gt operating instructions Five types of fault may occur of which the first four are indicated by fault codes in the
65. ays whether all 3 phases are present OK Error Phase Sequence Phase Sequence The display shows whether the rotating field direction is correct OK error Minimum flow temp Minimum flow temp Maximum flow temp Maximum flow temp Setting the limiting temperatures min and max that the heating circuit can request The maximum flow temperature is also used to calcu late the value for the underfloor protection circuit maximum CH temperature compressor hysteresis 2K 15 C 43 C Pre loading time Pre loading time To take account of the inertia of the underfloor heating you can manually set a pre heat before the start of the programmed heating time O hrs 9 10 Parameters which can only be set with vrDIALOG Installation instructions geoTHERM 0020051574 03 93 Parameters Description Factory setting Max heating time 20 min Max heating time Maximum time after which the 20 min Max DHW load time 40 min operation mode switches back to cylinder charg ing mode when there is still a parallel demand present for DHW 40 min Max DHW load time Time after which the opera tion mode switches from cylinder charging mode to heating mode when a parallel demand for heating is present Compressor hyster Compressor hyster 7K Forced switch on of the compressor when Current flow temperature lt Setpoint flow temperature Hysteresis Forced switch off of the compressor when
66. bus address To ensure that no problems can occur in the communica tion between all components each remote control unit must receive an addressing that corresponds to the control ling heating circuit gt On the first VR 90 remote control unit set the bus address to 2 for heating circuit 2 integrated into the geoTHERM heat pump gt For any other remote control units set bus different addresses that also differ from this and whose numbers correspond to the heating circuit e g bus address 5 for heating circuit 5 the addresses O 1 and 3 are assigned internally and are not available Take note of the VR 90 installation manual Installation instructions geoTHERM 0020051574 03 7 7 2 Installing VR 60 With the VR 60 mixer module you can add two mixed cir cuits to the control system of the heating installation You can connect a maximum of six mixer modules A unique bus address is set on the mixer module by means of a rotary switch You can use the operating panel to set the heating programmes and all of the required parameters All heating circuit connections sensors pumps are made directly to the mixer module with ProE plugs For assembly of the VR 60 mixer module see its enclosed installation instructions Like the VR 90 remote control units the VR 60 mixer mod ules also communicate with the heating controller via the eBUS gt During the installation you must follow the same proce dure that is used to connect
67. by accelerated by a factor of 60 The minimum run time of 4 min and the minimum off time of 5 min of the compressor are not changed Aux heater on at Aux heater on at This value is only relevant for the direct heating mode and when an external auxiliary heating system has been enabled for the heating mode It specifies the value of the energy integral below which the aux iliary heating system to the compressor is connected This value is relative to the energy integral start value for the compressor i e for standard values the switch on threshold for the auxiliary heating system is 120 min 600 min 720 min The auxiliary heating system is switched off if the flow target temperature at VF2 is exceeded by 3 K 9 10 Parameters which can only be set with vrDIALOG Installation instructions geoTHERM 0020051574 03 95 10 Inspection and maintenance 10 1 Notes on inspection and maintenance Continued efficient operation reliability and a long service life require inspection and maintenance work to be carried out on the heating system by an approved heating engineer on an annual basis The inspection is intended to determine the actual condi tion of the respective device and compare it with the nomi nal condition This is done by measuring checking observ ing Maintenance is required in order to correct possible devia tions of the actual condition from the target condition This normally is done by cleaning
68. cation describes the direction in which the control sys tem is driving the mixer If the mixer is not acti vated OFF appears If a VR 60 is connected the lower menu appears sev eral times for each heating circuit 9 6 Menu C Set parameters for the heating system 78 Installation instructions geoTHERM 0020051574 03 Factory setting Display shown Description HK2 C5 Parameters Switch on room temp Switch on room temp Remote control YES 23 C ence on cooling gt Select mode request Only when VR 90 remote control is used None None Room temperature from remote control is not taken into consideration during heating mode The room temperature measured has no influ Switch on In addition to the set heating curve the heating flow temperature is influenced depend ing on the difference between the room target and actual temperature Thermostat Room temperature from VR 90 is used directly for control function of a room thermo stat The set heating curve is shifted Heating is stopped as soon as the desired room tempera ture is exceeded by more than 1K Heating is re enabled when the temperature falls below the target room temperature Select this setting if you have set energy balance control Cooling only if external passive cooling is installed If the room temperature exceeds gt RT target day 3K cooling is requested The essential requirement for a
69. customer service department gt Check whether the green LED on the in rush current limiter is lit If the green LED is not lit there is no power supply or the in rush current limiter is faulty gt Check the power supply and restore gt Check the in rush current limiter and inform the factory customer service department if necessary gt For VWS VWW 38 2 and 46 2 only If the green LED lights up and red LED is flashing find the cause in the list of flash codes above and rectify the fault and inform the factory customer service department if necessary gt See fault 94 gt Check the heating system for leaks gt Top up water and bleed gt Check the expansion vessel gt Retighten screw couplings Compression screw connections on the 3 way diverter valve are leaking VWS only Pressure drop in the brine circuit due to leaks or air cushions VWS only Brine pressure sensor faulty Circuit breaker F1 on printed cir cuit board faulty Brine pressure switch fitted on site VWS only or limit thermo stat has opened gt Retighten the compression screw con nections on the 3 way diverter valve for heating cylinder charging gt Check the brine circuit for leaks top up brine and bleed gt Check the quality of plug contact on the circuit board and on the cable har ness gt Check the pressure sensor for correct operation gt Replace the pressure sensor gt
70. d information can be found in their gt manuals vrDIALOG 810 2 eBUS makes it possible to optimise boil ers and control systems via computer assisted graphic visu alisation and configuration and thereby make use of energy saving potential Both options enable you at any time to gain a visual impression of and influence the processes which take place in the control system at any time The pro grammes enable you to record and graphically prepare sys tem data to load device configurations and change and save them online or to save information in the form of reports Using vrDIALOG 810 2 you can make all the settings for the heat pump as well as other settings for optimisation Fixed value control You can use this function to set a fixed flow temperature via vrDIALOG independently of the control which is influ enced by atmospheric conditions T2 9 4 Control principle 9 41 Possible heater system circuits The following heater system circuits can be connected to the heat pump energy balance controller which is influ enced by atmospheric conditions aheater circuit anindirectly heated domestic hot water cylinder a hot water circulation pump a buffer circuit To extend the system a buffer circuit can be used to con nect as many as six additional VR 60 mixed circuit modules accessories each with two mixed circuits The controller on the operating panel of the heat pump is used to programme the mixed circ
71. de damaging the parts of the unit thr ad gt Remove the transport locks with which the heat pump is 13 8 Bag with seals for connecting hoses for fixed to the pallet the heating circuit grey and the brine well water circuit yellow green gt Dispose of the transport locks correctly These are no longer required 14 4 Lower and upper front cladding front and rear cover 4 3 Scope of delivery Installation instructions geoTHERM 0020051574_03 19 4 7 Transporting the heat pump Danger Risk of injury from lifting a heavy weight The heat pump weighs up to 420 kg gt Only use one of the following specified modes of transport Caution Risk of damage due to improper trans portation Regardless of the mode of transport the heat pump must never be tilted by more than 459 Otherwise this may lead to mal functions in the coolant circuit during sub sequent operation In the worst case sce nario this may lead to a fault in the whole heating installation gt During transport tilt the heat pump to a maximum angle of 459 Caution Risk of damage due to unsuitable trans portation Ensure that the mode of transport that you select is designed to match the weight of the heat pump gt You can find out the weight of the heat pump from the technical data Tab 14 1 Or gt Tab 14 2 20 Installation instructions geoTHERM 0020051574 03 4 6 Permi
72. drying When the function is started the current time of the start is saved The day is changed exactly at this time After network off on the floor drying begins as follows 71 Last day before mains off Start after mains on 1 15 1 16 16 17 23 17 24 28 24 29 29 9 2 Floor drying procedure after mains supply Off On If you do not wish to complete the floor drying using the specified temperatures or times you can specify other flow target temperatures by means of fixed value control gt Ch 9 3 3 In the process check the valid compressor hysteresis settable via vrDIALOG gt Ch 9 8 Legionella protection The purpose of the Legionella protect function is to kill off germs in the DHW tank and in the pipes Once every week a connected hot water cylinder is brought to a temperature of approx 75 C gt n the code level enable the Legionella protect func tion in accordance with local regulations and in relation to the size of the cylinder as required Enable this func tion for cylinders with a drinking water volume of 400 litres or more Set a start time and a start day weekday at on which you want the heating to take place Menu C9 Tab 9 6 9 3 3 Additional functions via vrDIALOG Remote parameter setting alerting diagnostics It is possible to diagnose and set the heat pump via vrDIA LOG 810 2 locally or via vrnetDIALOG 840 2 or 860 2 by remote maintenance More detaile
73. e 4 gt Fit an external heating cylinder charging diverter valve gt Connect an external heating cylinder charging diverter valve to terminal LP UV1 2 Fig 7 18 VWW only gt Fit an external well pump gt Connect the well pump as described in Ch 7 3 4 Hydraulic Scheme 10 For Hydraulic Scheme 10 the following additional accesso ries must be connected as required components that are not included in the scope of delivery A limit thermostat An external heating circuit pump A second external heating circuit pump An external motor controlled 3 way mixing valve An external heating cylinder charging diverter valve Two external heating cooling diverter valves A second external brine circuit pump cooling An external 3 way brine mixing valve cooling gt Fit a limit thermostat 19 Fig 5 6 gt Depending on the mains supply connect the limit ther mostat as described in Ch 7 3 6 or 7 3 7 gt Fit an external heating circuit pump in the buffer circuit gt Connect the external heating circuit pump as described in Ch 7 3 3 gt Fit a second external heating circuit pump in the heating circuit gt Connect a second external heating circuit pump to termi nal HK2 P 5 Fig 7 18 59 gt Fit an external motor controlled 3 way brine mixing valve gt Connect the external motor controlled 3 way brine mix ing valve to terminal HK2 6 Fig 7 18 gt Fit an exter
74. e 91 gt Ch 11 5 54 Installation instructions geoTHERM 0020051574 03 7 3 8 Connecting external brine switch VWS only 7 16 Connecting an external brine switch VWS only Key 9 Brine Switch In some cases for example in drinking water protection areas local authorities prescribe how an external brine switch must be installed VWS only and the refrigerant cir cuit is switched off if the pressure in the brine circuit exceeds a certain level If there is a lock out due to the brine switch the controller displays the error message 91 Ch 11 5 gt Remove the bypass pipework dashed line 2 gt Connect an external brine switch to the terminals 1 Installation instructions geoTHERM 0020051574 03 55 7 3 9 Connecting an external 3 way brine mixing valve cooling VWS only for optional external passive cooling D C GE of OO S dn 1 2 NE DOO op ZAC goe 9 IIS I9 SIS BER B AE O OO g Ode d ILL Lm 7 17 Connecting an external 3 way brine mixing valve cooling Key Ka 3 way brine mixing valve If you install the optional external passive cooling gt Connect the external 3 way brine mixing valve cooling to be fitted on site to the terminals 1 56 Installation instructions geoTHERM 0020051574 03 7 4 Controller PCB overview 1 Tee gt Va F 8 Lad JR 152 419 2 Pais rds ool lool oo ool joo Jooo jJoo joo
75. e any greater demands the following applies circuit and the brine circuit VWS only must be filled gt You must prepare the heating water If you use well water as the heat source VWW only the ifthe entire amount of filling and make up water heat source circuit does not have to be filled and bled exceeds three times the nominal capacity of the heat because this is an open system ing installation throughout the service life of the sys tem or ifthe limit values in the following tables are not com 6 1 Filling regulations plied with Mixing additives with the heating water can result in mate Total heat rial damage However no incompatibility with Vaillant appli ing output screen surfaces ances has been detected with proper use of the following 20 I kW j E Yew products over a long period gt Observe the manufacturer s instructions regarding addi kW tives if you are using these lt 50 No change or lt 3 0 02 Vaillant accepts no liability for the compatibility of any addi tives in the rest of the heating installation or for their effect gt 50 to 200 0 02 1 on systems with circulation water heaters and for systems with electric heating elements Additives used for cleaning subsequent flushing is required Fernox F3 2 Sentinel X 300 Sentinel X 400 from the specific system volume nominal capacity in litres heating output the lowest heating output must be used for multiple boiler
76. e level heating engineer level is reserved for heat ing engineers and is protected against accidental adjust ment by means of a code input If no code is entered i e the code level is not enabled although the following parameters can be displayed in the individual menus it is not possible to amend values The menus are divided into four areas SE Description Menu areas Description nection C1to C1 Setting parameters of the heat 9 7 1 pump functions for heating cir cuits D1 to D5 Operate and test the heat 97 2 pump in diagnosis mode t to 15 Call up information on the heat 9 7 3 pump settings A1 to A10 Call up the wizard for installing 9 7 4 the heat pump 9 3 Menu areas The third level contains functions for optimising the heating installation and can be set by heating engineers only via vrDIALOG 810 2 and vrnetDIALOG 840 2 and 860 2 T3 9 6 Resetting to factory settings gt Before you carry out the operation make a note of all set values in the controller both at operator level and at code level operating instructions and at code level 7 Ch 9 7 Display shown Wed 10 03 10 9 35 Description Factory setting Cancel Timer programmes Everything NO NO NO Adjustable values Caution Possible malfunction as a result of resetting to factory setting Resetting to the factory setting can delete system spe cific settings and cause mal
77. e required cable cross sections Were the required automatic safety devices used and labelled in accordance with the conductor cross sections and installation methods used Were all cables fastened using strain relief clamps If available was a ripple control signal connected to the heat pump by the power supply operator Assembly checklist Were all the cladding panels fitted 15 1 Commissioning report Installation instructions geoTHERM 0020051574 03 117 16 Reference gt Fill out the following tables in order to facilitate any servicing work which may be necessary Installation and commissioning were carried out by Heat source construction Date Company Name Address Telephone Electrical installation Date Company Name Address Telephone Start up Date Company Name Address Telephone 118 Installation instructions geoTHERM 0020051574 03 Planning for the heat pump installation Details Details regarding heat demand Heating load of the property Domestic hot water Was a central DHW supply used Was the user s behaviour regarding domestic hot water demand taken into account During planning was the increased hot water demand of Jacuzzis and showers taken into account Units used in the heat pump installation Details Unit designations of the installed heat pump
78. e required for correct installation gt Observe the applicable standards and regulations Installation instructions geoTHERM 0020051574 03 IAn d1 ev tV pap dz 9S Zs eev duund j1nd419 burjeaH duund 1in2Ji HulzeaH duund 1in2Ji DurjeaH snae snae eel eet eel duund uoljeynould J9jeau Aseqyixne 211329 3 Josuas aJnjeJaduiaj M0J4 Josuas eJnjeJaduJaj MOJ4 Josuas ainjesadwa MOJ4 Josuas ainjesadwa Mo 4 Josuas aunjesadwa sapuljAd Josuas ainjesadwa uinjay AJLA 191J9AIp Hulbseyd 1epurA DurjeeH duund jindu19 burjeaH sna z dZ HZ ZAA LA Q4 HIA dS 144 IAN d1 d cH Jaxiui 31n2J12 Hulzeay Jaxiui 31n2J12 burjeaH JaxiuJ 31n2Ji2 6urjeaH yue bunejoo aug de ebeuieJp pue Du yue uoisuedxa aug yun Bui aunq 104 sduind jeay uonpeuuoo 1972M dnoJ6 Ajajes yue uoisuedxoe ujbejudeip 1942M JOH yue uoisuedxe ujbejudeip yind419 Hulyeay DAJEA Jalja1 Uolsuedxy 9 J eA dojs pedde5 ye SOWI3Y WNWIXe W JOSUAS aJnjeJaduJ8j apis ho YUM JAAIBIII 4DG DYA a NPOW Jaxiul Q9 MA yun 043002 83ouJ8J Q6 MA J9j 013u02 e2uejeq J U pajoJ1uoo2 4aujeaM Japul Ad J9 eM joy 2i seuloq JapuljAd Jong Z SdA MOLSIIe 2 0 SMA duind jeay WYAH L086 E AOEZ gel d GYH dE dit ZMH gut St G9
79. e that there is a minimum amount of circulating water approx 20 96 of the standard rated volume flow If you have installed a hydraulic switch between i the heat pump and the heating installation VF2 the temperature sensor in the supply of the hydraulic switch must be attached to the heating installation You can choose to use the VPS 2 multi storage tank as a DHW tank gt When connecting the hydraulics observe the 7 installation instructions for the cylinder and the gt geoTHERM planning information The 1 diverter valve supplied in the VPS 2 multi storage tank must be replaced by two 3 way diverter valves that must be installed on site The diverter valves must be con nected to the LP UV1 terminal on the controller PCB 2 Fig 7 18 As of VWS VWW 380 2 the VPS 2 1500 multi storage tank must be used Caution Schematic only These examples of hydraulic schemes do not contain all of the shut off and safety instruments that are required for correct installation gt Observe the applicable standards and regulations 28 Installation instructions geoTHERM 0020051574 03 IAn d1 9S eev duund uorne naur 94 Jajeau eIJIXNE 21329 3 Josuas ainjesadwa M0 4 Josuas aunjesadwa sapuljAd AJLA 191J9AIp Hulbseyd JapuljAd HuljeaH duund 1in2Ji HulzeaH yue buno
80. e warm brine max inlet temperature warm brine Volume of the heat source circuit in the heat pump Nominal volumetric flow rate AT 3K Pressure loss at nominal volumetric flow rate AT 3K Electrical power consumption brine pump rated power Type of pump Ethylene glycol min 2596 vol max 30 vol 0 3 3 30 MPa bar ec ec 20 LX Jn PIER ee m h 5 3 7 EN 1 0 kPa mbar 39 0 390 36 0 360 32 0 320 510 510 W 200 200 400 400 Integrated wet rotor pump Energy label pump according to the Europump classification scheme Heat source circuit materials within the heat pump Heating circuit Permitted water condition max operating pressure min flow temperature max flow temperature 2 Cu CuZn Alloy Stainless Steel Fe EPDM Do not enrich heating water with frost or corrosion protection agents Soften the heating water at water hardnesses from 3 0 mmol l 16 89 dH according to Directive VDI2035 sheet 1 0 3 3 ec 25 ec 62 MPa bar Volume of water content of the brine circuit in the heat pump 8 3 10 3 12 0 141 Nominal volumetric flow rate AT 5K Pressure loss at nominal volumetric flow rate AT 5K Nominal volumetric flow rate AT 10K Pressure loss at nominal volumetric flow rate AT 1OK Heating circuit materials within the heat pump Coolant circuit coolant type m h 3 8 5 2 6 6 8 0 kPa mbar 7 2 72 8 6 86 13 7 137
81. e water in the DHW tank get warm Were the basic settings made on the controller Was the legionella protection function programmed Interval and temperature Handover to the user Details Was the user instructed on the following points Basic function and operation of the controller Operation of externally placed bleed valves Maintenance intervals Documentation handover Details Was the operating instructions handed over to the user Was the installation manual handed over to the user Were the manuals for all the accessories handed over to the user 16 1 Reference checklist 120 Installation instructions geoTHERM 0020051574 03 17 Appendix Sensor characteristics External heat pump temperature sensors VR 10 Internal heat pump temperature sensors VR 11 171 Appendix VR 10 sensor characteristics Installation instructions geoTHERM 0020051574 03 Temperature C Resistance ohms Temperature C Resistance ohms 40 87879 40 327344 35 63774 235 237193 30 46747 30 173657 25 34599 25 128410 20 25848 20 95862 15 19484 15 72222 30 14814 30 54892 5 11358 5 42073 8778 0 32510 6836 25316 10 5363 10 19862 15 4238 15 15694 20 3372 20 12486 25 2700 25 10000 30 2176 30 8060 35 1764 35 6535 40 1439 40 5330 45 1180 45 4372 50 973 50
82. ecialists in accordance with regulations Caution Risk of damage to the environment This heat pump contains R 407 C coolant The coolant must not be allowed to escape into the atmosphere R 407 C is a fluori nated greenhouse gas covered by the Kyoto Protocol with a GWP of 1653 GWP Global Warming Potential gt Before the heat pump is disposed of have the coolant which it contains com pletely drained into a suitable container so that it can then be recycled or dis posed of in accordance with regulations Danger Risk of injury due to chemical burns Brine fluids are harmful to health gt Avoid contact with the skin and eyes gt Do not inhale or swallow gt Always wear gloves and protective gog gles Observe the safety data sheet that accompanies the brine fluid Y gt Ensure that the brine fluid is disposed of at an appropri ate waste site or waste incineration plant for example in compliance with local regulations gt Contact the local municipal sanitation department or the mobile environmental service for quantities under 100 I Installation instructions geoTHERM 0020051574 03 109 13 Customer service and guarantee 13 1 Vaillant warranty Vaillant provides a full parts and labour warranty for this appliance The appliance must be installed by a suitably competent person in accordance with the Gas Safety Installation and Use Regulations 1998 and the manufacturer s instr
83. ection agents can cause changes in the seals noises during heating and possibly subsequent damage gt Do not use any unsuitable frost or corro sion protection agents 6 2 Filling and bleeding the heating circuit Caution The function will be impaired if the cir cuit is not bled enough Built up air may lead to insufficient flow and there may be noises in the heating cir cuit gt Ensure that the cylinder charging circuit of the DHW tank is also bled gt Open all thermostatic radiator valves in the heating installation and if required open all other stop valves gt f a DHW tank has been connected move the external heating cylinder charging diverter valve into the centre position gt f required move any other externally installed diverter valves into the centre position gt Connect a filling loop to a tap gt To do this remove the screw cap from the filling and drain valve for the heating circuit and fix the free end of the filling loop to this gt Open the filling and drain valve for the heating circuit gt Slowly turn the tap on and fill with water until the pres sure gauge on site has reached a heating installation pressure of approx 150 kPa 1 5 bar gt Close the filling and drain valve for the heating circuit gt Bleed the heating circuit at the locations provided for this gt Check the heating circuit s water pressure again if required repeat the filling procedure
84. er and system approval compliance with all inspection and maintenance condi tions listed in the instructions Improper use of any kind is prohibited 2 3 General safety instructions The heat pump must only be installed by a qualified compe tent person The competent person is also responsible for complying with the existing directives regulations and guidelines Observe the following safety instructions and regulations when installing the geoTHERM heat pump gt Carefully read through these installation instructions gt Carry out the activities that are described in these instal lation instructions Preventing explosions and burns The brine fluid ethanol is extremely flammable both as liq uid and steam A potentially explosive combination of steam air may accumulate Installation instructions geoTHERM 0020051574 03 gt Keep away from heat sparks naked flames and hot sur faces gt Ensure that there is sufficient ventilation in the event of accidental release gt Avoid the accumulation of steam air mixtures Keep brine fluid containers closed gt Observe the safety data sheet that accompanies the brine fluid The components of the heat pump can reach high tempera tures gt Do not touch any uninsulated pipelines in any part of the heating installation gt Do not remove any cladding parts Preventing electric shocks gt Always switch off all power supplies at all poles before carrying out
85. erature This menu is only displayed if a buffer tank is used e g Hydraulics diagram 2 4 or 10 Flow Temp Setpoint Target flow temperature T buffer top lt VF1 gt Temperature of the buffer tank flow temperature sensor VF1 T buffer Bottom lt RF1 gt Temperature of the buffer tank return temperature sensor RF1 9 6 Menu C Set parameters for the heating system Installation instructions geoTHERM 0020051574 03 TT Display shown HK2 CA Information Flow Temp Setpoint 41 C Flow Temp VF2 30 C Status of pump OFF mins lag gain 183 min HK2 CA Parameters Flow Temp Setpoint 41 C Flow Temp VF2 29 C Status of pump OFF Status hydr mixer Open Description For direct heating mode e g Hydraulics diagram 1 or 3 the upper menu is displayed The lower menu is only displayed if a buffer tank is used e g Hydraulics diagram 2 4 or 10 and when VR 60 is used including repeatedly Flow Temp Setpoint Flow temperature for the heat ing circuit Flow Temp VF2 Current flow temperature VF2 mins lag gain The mins lag gain is the sum of the difference between TARGET flow temperature and ACTUAL flow temperature per minute The heat pump starts at a particular heat deficiency see energy balance control Ch 9 4 2 Status of pump Indicates whether the pump is turned on or off ON OFF Status hydr mixer The OPEN CLOSED indi
86. ession 72 Flow temperature too high Flow sensor VF2 fitted too close Change the position of the flow sen for underfloor heating to the heat pump sor according to the hydraulics dia gram Flow temperature higher E than set value for 15 min Flow sensor VF2 is faulty Check flow sensor VF2 replace if nec max CH temperature essary compressor hysteresis Pump output of the external Check the external heating circuit 2 K gt Ch 9 8 factory heating circuit pump has dropped pump and replace if necessary setting 52 C or pump is faulty Existing dirt strainers clogged or Clean dirt strainers incorrectly dimensioned Mixer behind buffer tank is faulty Test mixer replace if necessary Max CH temperature set too low Check Max CH temp setting 81 Coolant pressure too high possible Error 27 has occurred See Error 27 See Error 2T three times in a row 83 Coolant pressure too low possible Check heat source Fault 28 has occurred three times in succession See Error 28 See Error 28 11 4 Fault with permanent switch off Installation instructions geoTHERM 0020051574 03 105 Fault code Error text description 84 Coolant pressure outside the range Error 29 has occurred three times in a row Heating system pressure too low Pressure 50 kPa 0 5 bar Heat pump shuts down and goes into operation automatically when the pressure rises above 70 kPa 0 7 bar Brine pressure too low P
87. f the front cladding on the frame of the heat pump gt Guide the eBUS line for the operating panel and if you are using the vrnetDIALOG accessory the 230 V voltage supply line through the opening in the mounting plate of the operating panel gt Then push the cladding into the clip holder on the side cladding gt Tightly screw on the mounting plate for the operating panel as you did with the two screws for the upper part of the front cladding gt f you want to fit the vrnetDIALOG accessory you must first carry out the assembly steps in Ch 7 10 before continuing to fit the cladding 63 7 29 Connecting the eBUS line for the operating panel gt f you are not using the vrnetDIALOG accessory connect the supply line to the operating panel 7 31 Installing the upper cladding section gt Place the front upper cladding on the heat pump and use two screws to secure this gt Push the rear upper cladding for the pipe feed into the clip holder 7 30 Fitting the cover column for the operating panel gt Push the cover column for the operating panel into the clip holder on the mounting plate for the operating panel 64 Installation instructions geoTHERM 0020051574 03 710 Installing vrnetDIALOG 840 2 and 860 2 gt Guide all of the cables through the openings on the cas ing that you have created for this purpose The communication unit vrnetDIALOG 840 2 and 860 2 gt
88. factor COS o 0 7 0 84 0 72 0 83 0 76 0 86 0 75 0 86 Required max network impedance with factory set in rush current limiter Ohm 0 472 0 450 0 270 0 100 Fuse Trigger characteristics C three pole switching disconnection of the three mains connection lines by a switching operation Breaking current A 20 25 32 40 Start up current without in rush current limiter A 99 with factory set in rush current limiter A 44 Electrical power consumption min at W10 W35 kW 5 0 max at W20 W60 kW 10 0 Auxiliary heater On site max kW EN 60529 level of protection S Hydraulic connections Heating circuit flow and return Inch mm G11 2 DN 32 Heat source flow and return Inch mm G11 2 DN 32 Heat source circuit Well water cir cuit permitted water condition pH difference in accordance with DIN 38404 C10 R2 lt 0 5 gt 0 5 Corrosion in accordance with DIN 50930 T4 1993 S1 0 5 Corrosion in accordance with DIN 50930 T5 S3 lt 0 5 gt 1 0 max operating pressure MPa bar 0 3 3 min inlet temperature warm brine 9c 4 max inlet temperature warm brine C 20 Volume of the heat source circuit in l 6 2 8 6 10 0 12 4 the heat pump Nominal volumetric flow rate AT 3K m h 6 42 8 76 10 8 131 Internal pressure loss at nominal volu kPa mbar 51 2 512 58 2 582 71 9 719 86 0 860 Heat source circuit materials within the heat pump 14 2 Technical D
89. factory customer service department gt Check whether the green LED on the in rush current limiter is lit If the green LED is not lit there is no power supply or the in rush current limiter is faulty gt Check the power supply and restore gt Check the in rush current limiter and inform the factory customer service department if necessary VWS VWW 38 2 and 46 2 only If the green LED lights up and red LED is flashing find the cause in the list of flash codes above and rectify the fault and inform the factory customer service department if necessary Y 11 3 Fault with temporary switch off Installation instructions geoTHERM 0020051574 03 101 range If the error occurs twice in a row the heat pump cannot be started until after 60 min at the earliest 11 3 Fault with temporary switch off 102 all causes mentioned at fault 27 and 28 are possible Fault code Error text description Possible cause Solution 28 Coolant pressure too low VWS only Air in the brine circuit Bleed the brine circuit Brine fluid concentration too low Check the brine fluid frost protection and Brine side well water side is increase the brine concentration if necessary supplying too little heat VWS only The pump output of the Check the brine pump and replace if neces The integral low pressure switch brine pump has dropped or the brine sary has tripped at 125 kPa 1 25 bar Pump
90. ff The heat pump is switched off after the occurrence of a critical fault After the cause of the faulty has been recti fied the heat pump can only be started again by resetting the fault deleting the Error History see Menu I 1 An exception applies in the case of fault 90 and 91 These You can see from the basic display whether the emergency operation function is still because only the vertical arrow auxiliary heating system is shown in black whereas the horizontal arrow environmental energy appears in white gt After the fault has been rectified switch off emergency operation by selecting the setting Reset YES in the display Low pressure switch off do not have to be reset When the cause of the fault has been rectified the heat pump restarts Turn the adjuster E fully to the left Emergency mode Depending on the type of the fault message you may be able to set the heat pump to continue running in an emergency mode via an external electric auxiliary heating system or an external boiler until the cause of the fault has been rectified You can find out from gt Tab 11 4 for which fault messages emergency operation is possible For emergency operation it is necessary that the hydraulic integration of the auxiliary heating system is guaranteed and an integrated auxiliary heating system has also been activated gt Check whether in Menu A3 gt Tab 9 9 an auxiliary heat ing system has not been
91. ff The cylinder is not heated The circulation pump is not operating The cylinder is reheated to 15 C for frost protection reasons only when the cylinder temperature falls below 10 9C Installation instructions geoTHERM 0020051574 03 9 2 Automatic functions Frost protection functions The heat pump is equipped with two frost protection func tions A frost protection requirement is provided by the compressor regulated frost protection for unit heating cir cuit and domestic hot water cylinder provided that the heat pump has not been permanently switched off because of a fault If the heat pump is permanently switched off because of a fault the set auxiliary heater starts up even if it has not been enabled for normal heating and hot water handling Emergency frost protection according to the set ting for unit heating circuit and or domestic hot water cyl inder Menu C7 gt Tab 9 6 Regulated frost protection for heating This function ensures that your heating installation is pro tected from frost in all operating modes If the outside temperature falls below 3 C and at that time no time window of a time programme is active i e with operation mode Off or with Eco outside a time window a start up temperature requirement with the energy saving target value for room temperature is generated with a default delay of one hour after the condition has occurred The frost protection requirement is cancelled when the out s
92. following work must be performed during the annual inspection Check the pressure in the heating circuit Check the quantity and concentration of the brine fluid and the pressure in the brine circuit VWS only 10 3 Carrying out the maintenance work The heat pump is designed in such a way that only a very few maintenance operations need to be carried out These maintenance operations must be carried out once a year or as a result of the inspection Check and clean the dirt filters in the heating circuit Check and clean the dirt filters in the well water circuit VWW only Check the expansion vessel in the heating circuit for cor rect operation Top up the heating water if the pressure in the heating circuit is too low gt Ch 6 2 Danger Risk of personal injury through improper maintenance of the coolant circuit The burning of coolant produces toxic cya nide gases If the point where coolant is escaping is touched it may lead to frost bite gt Ensure that only officially certified spe cialists with appropriate protective equipment perform maintenance work or access the coolant circuit According to Article 3 of EC Ordinance No 842 2006 of the European Parliament and the Council of 17th May 2006 regarding specific fluorinated greenhouse gases the opera tor of heat pumps with hermetically sealed systems con taining more than 6 kg of fluorinated greenhouse gases is obliged to h
93. for Hydraulic Scheme 3 gt Fit an external heating cylinder charging diverter valve gt Connect an external heating cylinder charging diverter valve to terminal LP UV1 2 Fig 7 18 VWW only gt Fit an external well pump gt Connect the well pump as described in Ch 7 3 4 Installation instructions geoTHERM 0020051574 03 Hydraulic Schemes 2 and 4 For Hydraulic Schemes 2 and 4 the following additional accessories must be connected as required components that are not included in the scope of delivery A limit thermostat An external heating circuit pump A second external heating circuit pump An external motor controlled 3 way mixing valve Hydraulic Scheme 4 only An external heating cylinder charging diverter valve gt Fit a limit thermostat 19 Fig 5 3 and gt Fig 5 5 gt Depending on the mains supply connect the limit ther mostat as described in Ch 7 3 6 or 7 3 7 gt Fit an external heating circuit pump in the buffer circuit gt Connect the external heating circuit pump as described in Ch 7 3 3 gt Fit a second external heating circuit pump in the heating circuit gt Connect a second external heating circuit pump to termi nal HK2 P 5 Fig 7 18 gt Fit an external motor controlled 3 way brine mixing valve gt Connect the external motor controlled 3 way brine mix ing valve to terminal HK2 6 Fig 7 18 Additional information for Hydraulic Schem
94. functions or the shutdown of the heat pump The heat pump cannot be damaged gt Before you reset the heating system to the factory settings page through all controller menus and make a note of all set values gt Press and hold both adjusters for at least 5 seconds in order to call up the Factory setting menu gt Select whether only time programmes or all values are to be reset to the factory setting gt To do this turn the adjuster E until the cursor is in front of the value in the line for the operation which is to be carried out Menu point Input Result Cancel Yes The set parameters are retained Time pro All programmed time windows are Yes grammes deleted All set parameters are restored to the Everything Yes factory setting gt Press the adjuster E in order to mark the value gt Turn the adjuster E until YES is displayed gt Press the adjuster E The operation is carried out The display switches to the basic display after a few seconds gt After carrying out this operation have the values which were noted down to hand gt Page through all values on the controller gt Check the value and reset the values which were noted down where necessary 9 4 Resetting to factory settings 74 Installation instructions geoTHERM 0020051574 03 9 7 Calling up Code level menus The Code level has different areas in which you can change parameters or merel
95. g Observing the installation instructions Use the values for the maximum rated power that are specified in the technical data to determine the required line cross sections In each case take into consideration the on site installa tion conditions Install the heat pump using a secure mains connection Install the separator right next to the heat pump For the electricity supply connect the heat pump to a three phase 400 V power system with a neutral line and an earth line Fuse this connection using the exact values that are specified in the technical data Tab 14 1 or gt Tab 14 2 Connect an external heating circuit pump to be fitted on site with Imax 2 A and Umax 230 V If these values are exceeded install a relay circuit breaker that is to be fitted on site and switch the pump using this If the local power company requires that the heat pump is controlled using a blocking signal fit a corresponding contact switch as prescribed by the power company gt Ch 7 3 2 Ensure that the sensor lines e g VRC DCF receiver do not exceed the maximum line length of 50 m Guide supply lines with mains voltage separately from sensor or bus lines from a length of 10 m If this is not possible use shielded lines Lay the shielding on one side of the sheet for the heat pump s switchbox Do not use free terminals on the heat pump as base ter minals for further wiring You can find an overview of the complete elec tr
96. g panel 7 25 Fitting the side cladding gt Place the lower end of both side cladding parts into the guide slots on the heat pump and then slide the cladding backwards gt Use two flat head screws to secure each of the cladding parts 7 26 Fitting the upper part of the front cladding gt Guide the eBUS line for the operating panel and if you are using the vrnetDIALOG accessory the 230 V voltage Installation instructions geoTHERM 0020051574 03 supply line through the opening in the upper part of the front cladding 1 Caution Risk of short circuit caused by a free voltage supply cable If you do not use the vrnetDIALOG acces sory or voltage is not supplied to the vrnet DIALOG via the heat pump the free con nector vrnetDIALOG 230 V voltage sup ply may cause short circuits within the heat pump gt Leave the connection cable vrnetDIA LOG 230 voltage supply in the fastening of the heat pump gt Hook the upper part of the front cladding onto the frame and push it into the clip holder gt Use two screws to secure the upper part of the front cladding 7 27 Fitting the operating panel gt Push the operating panel into the clip holder on the mounting plate and then screw in the operating panel from the rear Installation instructions geoTHERM 0020051574 03 7T 28 Fitting the lower part of the front cladding gt Place the lower part o
97. g valve Brine pump Filter drying cartridge Condenser Evaporator Controller PCB under cover plate Some components such as heating circuit pump 3 way valves or electrical auxiliary heater are integrated into the VWS and VWW geoTHERM heat pumps but these must be placed on site and installed externally 3 6 Front view when open VWW Key v 0 0 Ui S 00 ND Electrical connections In rush current limiter Circuit breakers Identification plate Compressor Expansion valve Condensate pan Brine circuit filling and emptying valve Flow switch Filter drying cartridge Condenser Evaporator Controller PCB under cover plate Installation instructions geoTHERM 0020051574 03 3 4 Optional accessories You can use the following Vaillant units to enhance the heat pump system Further information about installing Vaillant units is available in Ch 7 7 VR 60 mixer module With the mixer module you can expand the control system of the heating installation by two mixed circuits You can connect a maximum of six mixer modules VR 90 Remote control unit You can connect a separate remote control unit for the first six heating circuits CH 4 CH 15 VR 10 standard sensor Depending on the system configuration additional sensors may be required for example as supply return collector or tank sensors vrDIALOG 810 2 vrDIALOG is a communications unit with software and a connecting cable that provide the opt
98. gt Remove the filling loop from the filling and drain valve and put the screw cap back on gt Move all of the diverter valves into their initial position Installation instructions geoTHERM 0020051574 03 6 3 Filling and bleeding the brine circuit VWS only 6 31 Preparing the filling procedure Danger Risk of explosion and combustion The brine fluid ethanol is extremely flam mable both as liquid and steam A poten tially explosive combination of steam air may accumulate gt Keep away from heat sparks naked flames and hot surfaces gt Ensure that there is sufficient ventilation in the event of accidental release gt Avoid the accumulation of steam air mix tures Keep brine fluid containers closed gt Observe the safety data sheet that accompanies the brine fluid Danger Risk of injury due to chemical burns Brine fluids are harmful to health gt Avoid contact with the skin and eyes gt Do not inhale or swallow gt Always wear gloves and protective gog gles gt Observe the safety data sheet that accompanies the brine fluid Caution The function will be impaired if the cir cuit is not bled enough Built up air leads to significant efficiency losses gt Ensure that the brine circuit is bled enough Caution The function will be impaired if unsuita ble brine fluids are used gt Only use the specified brine fluids To fill the brine circuit you require
99. he following regulations or standards along with any local directives or guidelines that may apply Electricity at work act Health and safety at work act Relevant Utility supplier s regulations Water regulations and by laws Environment agency and local council requirements 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 and directives concerning energy saving Building regulations such as G3 covering Hygiene and L8 Legieonella COSHH regulations Other relevant bodies such as HETAS and OFTEC Installation instructions geoTHERM 0020051574 03 3 34 Description of functions and units Identification plate On the geoTHERM heat pump an identification plate is affixed to the front of the frame You can read the type des ignation of the heat pump from the sticker 1 Fig 3 3 on the bottom right of the front cladding and on the identi fication plate E Vaillant Vaillant GmbH Remscheid Germany Serial No 21054500100027970006000001N1 VWS 220 2 IP 20 3 N PE 400V 50Hz 1 N PE 230V 50Hz 3 N PE 400V 50Hz 10 kW BCC AH 00 kW COP BO W35 COP B5 W55 BO W35 B5 W55 Ce Ln deo x MMII kW 99 A 44 A R407 C 4 kg 2 9 29 MPa bar 4 3 3 3 216 n 23 0 3 1 Exa
100. he internal temperature sensor on the heating return line is faulty or not properly plugged into the PCB 43 Error HP flow sensor T6 Short circuit disconnec tion in the sensor possible The internal temperature sensor on the heating flow line is faulty or not properly plugged into the PCB gt Check the quality of plug contact on the circuit board and on the cable har ness gt Check the pressure sensor for correct operation gt Replace the pressure sensor gt Check the quality of plug contact on the circuit board and on the cable har ness gt Check sensors for correct operation resistance measurement based on VR 11 characteristics gt Tab 17 2 gt Replace the sensors 44 Error outdoor sensor AF Short circuit disconnec tion in the sensor possible The outside temperature sensor or its connecting cable is faulty or it is not connected correctly gt Check the Pro E plug on the circuit board check the connection line gt Replace the sensors 45 Error DHW tank sensor SP Short circuit disconnec tion in the sensor possible The temperature sensor in the DHW tank is faulty or it is not connected correctly 46 Error HB flow sensor VF1 Short circuit disconnec tion in the sensor possible The flow temperature sensor of the buffer tank is faulty or the connection is incorrect 47 Error HB return sensor RF1 Short circuit disconnec tion in the sensor 48
101. he operator or others or of damage to the units and other property in the event of improper use or use for which they are not intended This unit is not intended for use by persons including chil dren with physical sensory or mental impairments or who have inadequate experience and or knowledge unless they are supervised by a person responsible for their safety or have been given instructions by this person regarding the operation of the unit Children must be supervised to ensure they do not play with the unit Vaillant geoTHERM heat pumps are intended exclusively for domestic use The units are intended for use as heating units for closed wall and underfloor heating systems for DHW loading and for optional external cooling The units are intended for operation on a power supply net work that has a specific minimum network impedance Zmin at the interconnection point household connection gt Ch 14 Any other use or use beyond that specified shall be con sidered improper use Any direct commercial or industrial use is also deemed as improper The manufacturer supplier is not liable for any damage resulting from improper use The user alone bears the risk Intended use includes the following observance of accompanying operating installation and maintenance instructions for Vaillant products as well as for other parts and components of the system installing and fitting the boiler in accordance with the boil
102. heat pump VWS that has an intermediate heat exchanger that must be installed on site geoTHERM planning informa tion As limit values the values for copper prevail because the heat pump contains a copper soldered stainless steel plate type heat exchanger If the property 1 unsuitable appears in the Copper column or if the property o appears three times direct operation is not permitted In this case an intermediate circuit with brine water heat pump and intermediate heat exchanger must be installed If a screwed stainless steel heat exchanger material 1 4401 is used as an intermediate circuit the limit values for Stainless Steel in the table apply If the property 1 Installation instructions geoTHERM 0020051574 03 unsuitable appears in the Stainless Steel column or if the property 0 appears three times operation with an intermediate circuit is not permitted When water from lakes and ponds is used an intermediate circuit must always be installed The intermediate circuit must be filled with brine fluid 3O 96 mixture Water components Concentration Copper Stainless in mg l steel 1 4401 Iron dissolved 02 Fe gt 0 2 Les Manganese dissolved lt 01 Mn gt 01 L Aluminium dissolved lt 0 2 Al gt 0 2 WM A Hydrogen sulphide lt 0 05 H2S gt 0 05 L A Sulphide lt 1 SO Chlorine gas free
103. heck the heating pump and replace if necessary gt Bleeding heating circuit Dirt in the heating circuit Bivalent temperature incorrectly set Pump output of the external heating pump has dropped or pump is faulty gt Flush the heating circuit gt Change the bivalent temperature Menu A3 gt Tab 9 9 gt Check functioning of the pump replace if necessary Traces of water under or next to the heat pump Outside temperature indicates 60 C Temperatures in the heating circuit too low or too high 11 5 Other errors malfunctions 108 The condensate drain is blocked gt Condensate inside the unit is collected in the condensate pan and may be dis charged under the heat pump not a fault Check the line insulation inside the unit and re insulate if necessary in order to reduce condensate formation Leaks in the heating circuit Outside temperature sensor not connected or faulty Target room temperature not optimally set gt Check the heating circuit components pump auxiliary heating system pipes for leaks gt If necessary retighten the screw cou plings and replace the seals gt Check outside temperature sensor gt Change the target room temperature Menu IL gt operating instructions Night set back temperature not optimally set gt Change the night set back temperature Menu E 1 gt operating instructions Heating curve not optimally set
104. ical circuit diagram in Ch 17 Installation instructions geoTHERM 0020051574 03 7 2 Electronic switchbox Ti T2 T3 2000 71 Electronic switchbox VWS and VWW 220 2 300 2 Key Strain relief clamps Electricity supply connection terminals In rush current limiter Green LED for voltage supply Protection for external electrical auxiliary heater Compressor protector contactor Compressor control contactor In rush current limiter contactor ONauRWN Installation instructions geoTHERM 0020051574 03 VWW only Control button for well pump overcurrent VWW only thermal overcurrent relay VWW only Well pump control contactor VWW only Well pump protector contactor with overcurrent relay motor protection VWS only Protector contactor brine pump Controller PCB Connection strip for sensors and external components 45 ON A2O O AN A2 Klo elle an L L2 L3 LI L2 L3 L1 L2 L3 TI T2 T3 7 2 Electric switchbox VWS and VWW 380 2 460 2 Key KRWN c Oo Ul Strain relief clamps Electricity supply connection terminals In rush current limiter LEDs green voltage sup
105. ide inlet of the heat pump for the filling operation After completion was the dirt filter removed Were non return valves built into the brine circuit Were balancing valves built into the brine circuit 15 1 Commissioning report 116 Installation instructions geoTHERM 0020051574 03 Brine circuit checklist VWS only Were the brine circuits hydraulically equalised Was the brine expansion tank fitted Was the brine circuit filled to a pressure of 200 kPa 2 bar Was the brine expansion tank filled to 2 3 full Were isolating devices fitted ahead of the heat pump Were the pipes thermally insulated against vapour diffusion Were cold pipe clips used for the installation of the brine circuit lines inside the building Well water circuit checklist VWW only Was the water or its composition examined Was a second heat exchanger used for decoupling Was a dirt filter fitted at the water side input to the heat pump Were isolating devices fitted ahead of the heat pump Were the pipes thermally insulated against vapour diffusion Electrical installation checklist Is a separator with 3 pole switch off and a contact opening of at least 3 mm available on site and has this been labelled accord ingly Were all electrical connections carried out properly and according to the specified wiring diagrams Was the protective earth properly connected Do all cables have th
106. ide temperature again rises above 4 C Regulated frost protection for domestic hot water cylin der This function is also active in the operating modes Off and Auto regardless of time programmes This function starts automatically if the cylinder actual tem perature of a connected domestic hot water cylinder falls below 10 C The cylinder is then heated to 15 C Emergency frost protection function The emergency frost protection function automatically acti vates the set auxiliary heater according to the setting for the central heating and or hot water handling If the heat pump is permanently switched off as a result of a fault and the outside temperature is below 3 C the auxil iary heater is enabled without time delay for the emer gency frost protection mode provided that the operating mode Auto or Heating has been set The flow tempera ture target value is limited to 10 9C in order not to waste too much energy unnecessarily during emergency opera tion with the auxiliary heater Enablement is cancelled when the outside temperature rises above 4 C If a buffer tank is connected it is heated when the tempera ture sensor VF1 measures lt 10 C Cylinder charging is switched off if the temperature sensor RF1 measures gt 12 C If a domestic hot water cylinder is connected it is heated if the temperature sensor measures lt 10 C Cylinder charging is switched off if the temperature sensor SP measures gt
107. installations These specifications only apply up to three times the system volume for filling and make up 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 Table 6 1 were exceeded Additives intended to remain permanently in the system Fernox F1 Fernox F2 Sentinel X 100 Sentinel X 200 Fernox Antifreeze Alphi 11 Sentinel X 500 6 1 Guide values for the heating water water hardness Heating water TES Unit Low salt Saline characteristics Additives for frost protection intended A conductivity eem 100 100 1500 to remain permanently in the system a Fernox Antifreeze Alphi 11 Appearance free of sedimentary materials Sentinel X 500 38 Inform the operator about the measures that are required if these additives have been used Inform the operator about the behaviour that is required for frost protection pH value at 25 C 8 2 10 0 8 2 10 0 Oxygen 1 For aluminium and aluminium alloys the pH range is restricted from 6 5 to 8 5 6 2 Guide values for the heating water Salt content Installation instructions geoTHERM 0020051574 03 Caution Risk of material damage if the heating water is treated with unsuitable frost or corrosion protection agents Frost and corrosion prot
108. insulated If condensation still occurs 7 Fig 3 5 and gt Fig 3 6 are collected in a condensate pan and guided under the heat pump Drop formation under the heat pump is thus possible The geoTHERM heat pump VWS can be equipped with external passive cooling in order to provide for comfortable cool room temperatures in your living rooms at high out side temperatures during the summer operation For this purpose additional components are required in the heat pump hydraulics An auxiliary cooling heat exchanger an additional mixer valve and an auxiliary diverter valve In the case of Vaillant heat pumps with cooling function the principle of passive cooling is applied in which thermal energy is transported via underfloor heating from the rooms to the ground without compressor operation and therefore without coolant circuit operation The heating water which when supplied is colder than the room temper ature absorbs thermal energy from the rooms and is pumped via the heating circuit pump into the cooling heat exchanger The brine pump also conveys the colder brine from the ground into the heat exchanger of the brine cir cuit which is operated using the counter flow principle In the process the warmer heating return emits thermal energy to the colder brine circuit so that the brine which is heated to some degree is guided again to the floor The annealed heating flow circulates again through the circuit of the underfloor heating
109. ion to diagnose moni tor and set parameters for the heat pump on site from a computer vrnetDIALOG 840 2 860 2 The vrnetDIALOG communications unit provides the option to carry out remote diagnosis monitoring and to set param eters from one computer via a telephone connection or an integrated GSM modem irrespective of your current loca tion VPS heating water buffer tank The VPS buffer tank is used as an intermediate cylinder for heating water and can be installed between the heat pump and the heating circuit It provides the energy that is required to bridge any idle periods from the power com pany VIH and VDH domestic hot water cylinder The Vaillant VIH coiled tube tank and the Vaillant VDH dou ble wall tank are specially designed to be combined with heat pumps and are used for heating and storing hot water VPS 2 buffer tank The VPS 2 buffer tank available as an option with VPM W fresh water unit or VPM S solar charging unit is used as temporary storage for heating water and can be fitted between the heat pump and the heating circuit It provides the thermal energy that is required to bridge any idle peri ods from the power company Installation instructions geoTHERM 0020051574 03 Other accessories that are available from Vaillant Brine concentrate Filling pump for brine circuit Heat pumps for brine filling unit Other accessories Safety group and drain pipe for heating circuit Expansion vessel for heati
110. ipped at 3 MPa 30 bar g The heat pump can start again after a 60 minute wait at the earliest Air in the heating system gt Bleed the heating system Pump output has dropped or heating pump is faulty gt Check the heating pump and replace if nec essary Radiator heating without hydraulic switch or buffer tank gt Check the heating system Buffer tank sensors VF1 and RF1 interchanged Too low a volume flow as a result of closing individual room controllers in an underfloor heating system Heat ing mode is operated briefly after every HW loading if the outside tem perature falls below the OT switch off threshold The control system checks if there is a heat demand Existing dirt strainers clogged or incorrectly dimensioned Stop valves closed gt Check the position of the sensors gt Check the heating system gt Clean dirt strainers gt Open all stop valves Coolant flow rate too low e g ther mal expansion valve TEV incorrectly adjusted or faulty For VWS VWW 38 2 and 46 2 only The fault relay on the in rush cur rent limiter has responded The red LED on the in rush current limiter is flashing 2x Incorrect phase sequence 3x Compressor motor overcurrent 4x Thyristor module excess tem perature 5x Low voltage phase failure 6x Min max power frequency 7x No compressor connected gt Have the coolant circuit checked Inform the
111. irements for the well water quality VWW only Caution Risk of damage from unsuitable well water Deposits caused by using unsuitable well water may damage the suction well the pipes and the evaporator Using water that contains salt is not permitted gt Before installing the unit check that the quality level of the water that is drawn in is sufficient 4 1 Minimum size of the installation space for the heat pump gt Ensure that the required minimum clearance can be maintained gt When selecting the installation site you must take into consideration that when the heat pump is in operation it will carry vibrations over to the floor and the nearby walls gt Ensure that the floor is level and offers sufficient bearing capacity to be able to bear the weight of the heat pump including a hot water tank and if required a filled buffer tank that is ready for use gt Ensure that cables can be easily run for brine well water hot water and heating 14 If the heat pump must be installed directly in the well water circuit irrespective of the legal requirements a water anal ysis must be carried out in accordance with the following table for evaluating the quality of the well water gt Tab 4 2 and you must decide whether the well water can be used as a heat source The table is to be used as a guide and does not claim to be complete If the well water is not of a sufficient quality you must use a brine water
112. is also used to calculate the value for the underfloor protective circuit maximum HC temperature compressor hysteresis 2 K If the mixed circuit heating circuit type is set the underfloor protective circuit is disabled and the factory setting is 50 C Maximum temperature 43 C gt Select temperature Heating curve The heating curve represents the relation between the outside temperature and target flow temperature The setting is made separately for each heating circuit The efficiency and convenient operation of the heating system significantly depend on the selection of the correct heating curve If too high a heating curve is selected the tempera ture in the heating system will be excessive and as a result energy consumption will be higher If the selected heating curve is too low the desired temperature level may only be reached after a while or not reached at all 9 6 Menu C Set parameters for the heating system T6 Installation instructions geoTHERM 0020051574 03 Display shown Flow temperature Description Heating curves in C 4 03 5 3 0 2 5 2 0 1 8 1 5 1 2 Target room Outside temperature in C Factory setting temperature HK2 C2 This display appears when Fixed value has been Parameters set Type Fixed value For energy balancing the display Comp starts at also appears Max limit outs temp 20 C gt Select temp
113. is faulty 0 VWS only Not all circuits are circu Adjust the brine circuits lating equally Can be seen from the difference in the severity of icing on individual brine circuits Not all the required stop valves are Open all stop valves open Coolant flow rate too low e g ther Have the coolant circuit checked Inform the mal expansion valve TEV incorrectly factory customer service department adjusted or faulty For VWS VWW 38 2 and 46 2 only Check whether the green LED on the in rush The fault relay on the in rush cur current limiter is lit If the green LED is not rent limiter has responded lit there is no power supply or the in rush The red LED on the in rush current current limiter is faulty limiter is flashing Check the power supply and restore 2x Incorrect phase sequence Check the in rush current limiter and inform 3x Compressor motor overcurrent the factory customer service department if 4x Thyristor module excess tem necessary perature VWS VWW 38 2 and 46 2 only 5x Low voltage phase failure If the green LED lights up and red LED is 6x Min max power frequency flashing find the cause in the list of flash 7x No compressor connected codes above and rectify the fault and inform the factory customer service department if necessary 29 Coolant pressure outside the Coolant pressure too high or too low See faults 27 and 28 Installation instructions geoTHERM 0020051574_03 11 5 Fault with permanent switch o
114. ith each other 66 Vaillant Loading 8 1 Controller initialises After a short time the controller is ready for operation and detects that this is an initial commissioning During the ini tial operation the controller always starts with the Installa tion Assistant menu You can change all of the entries in the controller settings at a later point Installationsassistent Al You must also run the Installation Assistant after resetting to factory settings Sprache gt DE deutsch Standort DE gt Sprache w hlen 8 2 Menu Af Language selection The illustration shows a German interface gt If required change the language setting gt Turn the E dial until you reach the next menu Installation Assistant A2 Hydraulic scheme 0 Electric Wiring Diagram 0 Accept change NO gt Select 8 3 Menu A2 Select a hydraulic scheme and electric wiring diagram Installation instructions geoTHERM 0020051574 03 8 1 1 Selecting a hydraulic scheme Caution Malfunctions may be caused by using the wrong hydraulic scheme A hydraulic scheme that is not suitable for the heating installation causes malfunc tions gt Select the correct hydraulic scheme gt Turn the E dial until the cursor gt points to the hydraulic scheme number gt Press the dial E The parameter is shown with a dark background and is activated gt Turn the dial E until you have
115. jury due to hot and cold compo nents The heat pump may only be put into opera tion after all the cladding sections have been fitted gt Before starting up the unit fit all of the cladding parts gt Fill out the start up log before starting up the unit Ch 15 The heat pump may only be started if all the points noted there have been satisfied For the subsequent start up it is assumed that you know how to operate the controller as described in the operating instructions Danger Risk of electric shock gt You must first fit all of the cladding parts for the inner and outer unit before switching on the voltage supply 8 1 Carrying out the initial commissioning As soon as the heat pump is supplied with power for the first start up an internal self test starts automatically and during this test the heat pump tests itself and its con nected components to ensure that they work properly In doing so the configuration of the sensors is checked the phase sequence of the 400 V voltage supply phase sequence is checked and the sensors that are used are checked to ensure that they work properly gt Switch on the circuit breaker so that the heat pump is supplied with power If the self test is not successful a fault message is shown in the controller display Ch 11 The controller automatically checks the correct phase sequence gt f a fault message is displayed swap two of the phases w
116. kin and eye contact with the coolant gt n the event of skin or eye contact with the coolant seek medical advice Preventing environmental hazards The heat pump contains the coolant R 407 C The coolant must not be allowed to escape into the atmosphere R 407 C is a fluorinated greenhouse gas covered by the Kyoto Proto col with a GWP of 1653 GWP Global Warming Potential If it escapes into the atmosphere its impact is 1653 times stronger than the natural green house gas CO Before disposing of the heat pump the coolant that is con tained in the heat pump must only be drained via service valves into a recycling cylinder In the case of service work new coolant for the quantity see the identification plate Ch 3 1 must only be poured in via service valves If an approved replacement coolant other than the R 407 C that is recommended by Vaillant is poured in not only do all guarantees lose their validity but the operational safety can also not be guaranteed gt Ensure that only officially certified specialists with appropriate protective equipment perform maintenance work or access the coolant circuit gt The coolant in the heat pump must only be recycled or disposed of by certified specialists in accordance with the regulations 2 5 Regulations rules guidelines As part of the installation commissioning and operation of the heat pump and the DHW storage you must take into account the current versions of t
117. lation observe the applicable regula tions gt Observe the following note about avoiding sound trans mission To reduce the level of noise to a minimum thread the pipes through ceilings and walls with insulation against structure borne sound Installation instructions geoTHERM 0020051574 03 Position the pipe brackets to secure the heating circuit and brine well water piping so that it is not too close to the heat pump in order to prevent the connection from being too rigid In each case install the supplied flexible connecting pipes to the vibration isolation on the heat pump We do not recommend that you use stainless steel corru gated pipes because the corrugated shape of the hoses would result in too great a loss of pressure in the heating water Caution The unit may not work properly if there is air in the heating installation Air in the heating system leads to impaired operation and reduces the heating output gt Install bleeding valves at suitable loca tions in the heating installation 23 5 1 Installing the direct heating mode 54 1 Description of functions for the direct heating mode The underfloor heating circuits are connected directly to the heat pump By default this is controlled by an energy balance controller Ch 9 4 2 543 2 Installation instructions Y Install the hydraulic components in accordance with the local requirements and as shown in the sample hydraulic sche
118. learances 141 1200 1099 915 gt 1100 l 4 1 Dimensions and clearances 1 Adjustable feet adjustable in height by 10 mm 16 Installation instructions geoTHERM 0020051574_03 4 2 Minimum clearances for installing the heat pump 4 3 Arrangement of the flexible hoses gt Plan the exact installation site of the geoTHERM heat pump and the pipe installation in such a way that the supplied flexible connecting hoses can be connected to the vibration isolation Installation instructions geoTHERM 0020051574 03 4 4 Requirements for the heating circuit Only for installed external passive cooling Caution In the heating mode there is a risk of damage caused by the temperature fall ing below the dew point and by a build up of condensation All pipes in the heating circuit must be pro vided with vapour diffusion tight insulation Radiator heating is not suitable for the cooling with a Vaillant geoTHERM heat pump gt Insulate all of the pipes in the heating circuit using vapour diffusion tight insu lation Caution In the cooling mode there is a risk of damage caused by the temperature fall ing below the dew point and by a build up of condensation Adequate cooling function is also guaran teed in a flow temperature of 20 C gt Do not set the heating flow temperature to
119. locked The setting none locks all installed emergency functions and frost protection functions of an auxiliary heating system The factory set ting is none If an external auxiliary heating system is connected you can set DHW CH here gt For emergency operation set the parameters of the aux iliary heating system for Heating mode and Hot water mode to CH only in Menu C7 gt Tab 9 6 In the case of a fault with consequent permanent switch off the following parameters appear in the display under the fault message Low pressure switch off Reset YES NO Deletes the fault message and enables compressor oper ation DHW priority YES NO Enables auxiliary heating hot water mode CH priority YES NO Enables auxiliary heating for heating mode Emergency operation can be activated either for heating mode YES hot water mode YES or for both YES YES Note that emergency operation which has been activated manually must also be deactivated manually otherwise this function remains active The emergency operation function is otherwise only disconnected by Disconnection of the controller circuit board power sup ply power failure in the mains power supply or discon nection via domestic fuses circuit breakers or RESET of the software 14 or Resetting the fault message The heat pump is then restarted with compressor opera tion Installation instructions geoTHERM 0020051574 03 103 Fault
120. lve 72 Stop valve Fig 5 8 Pos 3 Fig 5 8 Pos 4 From the heat source to the heat pump From the heat pump to the heat source COU2 Y Close the stop valves 63 and 64 Connect the filling pump s pressure line 67 to the stop valve 70 gt Connect a hose that leads to the brine fluid to the stop valve 61 Open the stop valves 61 and 70 Start the filling pump 67 in order to fill the brine circuit with the brine fluid from the brine container 66 via the dirt filter 33 gt Allow the filling pump 67 to run until there is no air in the brine fluid that escapes from the hose at the stop valve 61 gt Close the stop valve 70 gt Switch off the filling pump and close the stop valve 61 gt Remove the hoses from the stop valves 61 and 70 The stop valves 63 and 64 must remain closed Y Y Y Installation instructions geoTHERM 0020051574 03 6 3 3 Filling and bleeding the inner part of the brine circuit If the outer part of the brine circuit has already been filled and bled it is sufficient to finally fill and bleed the inner part of the unit Any air pockets in the pipelines between the stop valves are negligible and are removed by subse quent bleeding when starting up the unit 42a 67 C 57 N 33 KN gt lt ote E TOR A 6 2 Filling and bleeding the inner part of the brine circuit gt Ensure that the stop valves 63 and 64
121. me below gt f you do not use the optional accessory heat pump brine filling unit for heat pumps 56 gt Fig 5 2 install the individual hydraulic components accordingly Fig 5 9 gt Connect a limit thermostat to ensure the underfloor heating function on the heat pump gt Connect the VF2 flow temperature sensor to ensure the integral energy function gt When starting up the unit set Hydraulic Scheme No 1 in the controller gt Ensure that there is a minimum amount of circulating water approx 30 96 of the standard rated volume flow If you have installed a hydraulic switch between the heat pump and the heating installation VF2 the temperature sensor in the supply of the hydraulic switch must be attached to the heating installation Caution Schematic only These examples of hydraulic schemes do not contain all of the shut off and safety instruments that are required for correct installation gt Observe the applicable standards and regulations 24 Installation instructions geoTHERM 0020051574 03 9S Zs eev Josuas ainjesadwa M0 4 duund jinduid buljeay yue bunoejoo aug de abeuleup pue Duuu yue uolsuedxa aulig yun BHulyjly aulsg 104 sduund jean 9AJ eA ssed Ag up uoisuedxe whesydelp jind419 Bulyeay DACA Jaljad uoIsuedx3 9AJ eA dojs paddes je1soul18u WNWIXeW JOSUAS aJ
122. mple of an identification plate VWS Explanation of the symbols on the identification plate Q Rated voltage compressor ODJ Rated voltage pumps controller HD Rated voltage auxiliary heater Installation instructions geoTHERM 0020051574 03 Rated maximum power Rated power and controller compressor pumps Rated power auxiliary heater Start up current without in rush current limiter Start up current with in rush cur rent limiter Coolant type Filling quantity Permissible rated overpressure COP BO W35 Output figure Coefficient of Per formance at a brine temperature of O C and heating flow tempera ture of 35 C COP B5 W55 BO W35 B5 W55 Output figure Coefficient of Per formance at a brine temperature of 5 C and heating flow tempera ture of 55 C Thermal heating output at a brine temperature of O C and a heating flow temperature of 35 C Thermal heating output at a brine temperature of 5 C and a heating flow temperature of 55 C CE mark VDE GS mark Read the operating and installa tion instructions VDE mark for electromagnetic compatibility Type of protection against contact and moisture IP 20 At the end of its useful life dis pose of it properly and according to regulations not household waste 21054500100028300006000001 N4 3 1 Symbol explanations Serial
123. n the compressor is operating If the display C appears the tempera ture sensor T4 on the Temp TEV inlet is faulty No warning message is recorded in the Error History Temp TEV inlet Temperature at the inlet of the ther mal expansion valve Compressor Compressor status ON OFF x min Time in minutes until the start of the compressor when a heat request is present Diagnosis D3 Current flow temp Current flow temperature T6 Central Heating Current flow temp 279C Current return temp Current return temperature Current return temp 24 C T5 CH pump OFE CH pump CH pump status Rotation speed in 96 OFF CH pressure 1 2 bar Auxiliary heater OFF CH pressure Pressure in the heating circuit heating circuit pressure sensor Auxiliary heater Status of auxiliary heating ON OFF 9 7 Menu D Carrying out diagnoses see Figs 1 and 2 in the appendix 84 Installation instructions geoTHERM 0020051574 03 Display shown Description T return source Brine water temperature well water Factory setting Heating circuit V E31 VFI Diagnosis Gu temperature at the heat pump inlet T3 Heat source T return source 10 C T outlet Evap Brine water temperature well water T outlet Evap 9c temperature at the heat pump outlet T8 Brine pump ON Brine pressure 1 5 bar Brine pump VWS only Brine pump status ON OFF VWW only Well pump sta
124. n the injection well and the heat exchanger in the heat pump gt n the suction well install the well pump immersion pump that must be installed on site Follow the well pump installation and assembly instructions in this respect The electrical connection for the well pump is described in gt Ch 7 3 4 gt Fit the well water pipelines along with all the associated components in accordance with the applicable technical guidelines Caution Risk of damage caused by solid particles Solid particles e g sand in the well water may clog the evaporator gt n the inflow to the heat pump install a flushable fine filter mesh width 100 120 um gt Connect the well water pipelines to the heat pump 3 and 4 gt Fig 5 8 gt Insulate all pipelines using vapour diffusion tight insula tion Caution Risk of damage caused by negative pres sure Negative pressure in the well water pipe lines may cause damage to the flexible hoses within the heat pump gt Ensure that there cannot be any nega tive pressure in the pipelines when oper ating and after switching off the well pump 37 6 Filling the heating and heat source circuit gt You must comply with the applicable national regulations and technical standards for preparing the filling and make up water Provided the national regulations and technical standards Before you can start operating the heat pump the heating do not mak
125. n you have confirmed with YES the controller switches to the basic display The heat pump starts under its autonomous control system This menu no longer appears once YES has been set during commissioning 9 9 Menu A Calling up Installation Assistent 92 Installation instructions geoTHERM 0020051574 03 Factory setting 9 8 Parameters which can only be set with vrDIALOG Settings via vrDIALOG must only be undertaken by an approved heating engineer Parameters Description Factory setting Calibration of temperature sensors Internal sensors T1 T3 T5 T6 and T8 can only be calibrated via vrDIALOG 810 2 Change name Heating circuit Change name You can name each heating circuit in the heating system individually A maximum of ten letters are available per heating circuit for this purpose The selected names are saved automatically and displayed on the correspond ing displays Depending on the system configuration the names of additional heating circuits appear in the display HK2 HK2 Software version The status provides information on the operating con dition of the heat pump software Elec Tariff switch Elec Tariff switch Elec Tariff switch status by actuat ing the energy supplier contact cut off time by power supply operator no no cut off time yes cut off time active actuation e g via ripple control receiver ripple control signal Phase Status Phase Status displ
126. nal heating cylinder charging diverter valve gt Connect an external heating cylinder charging diverter valve to terminal LP UV1 2 Fig 7 18 an gt Fit two external heating cooling diverter valves and a second external brine circuit pump cooling in the brine circuit gt Connect the two external heating cooling diverter valves and the second external brine circuit pump cooling to terminal SK2 P 4 Fig 7 18 an gt Fit an external 3 way brine mixing valve cooling gt Connect the external 3 way brine mixing valve cooling as described in Ch 7 3 9 Also refer to the sample hydraulic schemes gt Fig 5 2 to Fig 5 6 7 7 Installing optional accessories Danger Risk of electric shock gt Switch of the electricity supply before you connect additional equipment to the controller PCB via the eBUS gt Check that there is no voltage You can connect the following optional accessories Up to six VR 60 mixer modules to add twelve system cir cuits to the heating installation factory set by default as mixed circuits Upto six VR 90 remote control units to control the first six heating circuits vrnetDIALOG 840 2 or 860 2 Each connection is connected in parallel to an eBUS ter minal 11 gt Fig 7 18 7 7 1 Installing VR 90 If you install several heating circuits you can connect a sep arate VR 90 remote control unit for each of the first six heating circuits It allows the operation
127. ng circuit Expansion vessel for hot water circuit Expansion vessel for brine circuit 4 Installation 44 Requirements for the installation site gt Choose a dry room that is frost proof and where the temperature does not fall below 7 9C and does not exceed a maximum of 25 9C gt Note that the installation room must have a minimum volume In accordance with DIN EN 378 T1 the minimum size of the installation room Vmin for heat pumps is cal culated as follows Vmin G c G coolant filling quantity in kg c practical limit value in kg m for R 407 C c 0 31 kg m This therefore results in the following minimum installa tion space Coolant filling Minimum installa Heat pump type quantity kg tion space m VWS 220 2 44 13 2 VWW 220 2 4 3 13 9 VWS 300 2 VWW 300 2 5 99 19 3 VWS 380 2 VWW 380 2 St 21 6 VWS 460 2 VWW 460 2 RE dnt Caution If an unsuitable heating type is used dur ing cooling there is a risk of damage posed by a build up of condensation During cooling condensation forms on the radiators and their supply lines and this causes mould to form and structural dam age gt Do not install the geoTHERM heat pumps with external passive cooling in heating installations that have radiators Take the cooling into consideration when using surface collectors When using a Vaillant heat pump with external passive cooling a ground sensor must be used 4 2 Requ
128. ng piece in the pipeline from the heat source to the heat pump Installation instructions geoTHERM 0020051574 03 5 11 Fitting the expansion relief valve gt Seal the outside thread of the upper connecting piece 1 using a sealant e g Teflon tape gt Fit the connecting piece to the 3bar expansion relief valve 42a that is attached to the heat pump Fit the upper connecting piece with the expansion relief valve to the brine expansion tank Use the bracket to fix the brine expansion tank Connect a hose pipeline to the expansion relief valve Allow the end of the hose to be open in the brine collect ing tank Install the brine expansion tank 65 Fig 5 9 without pressure on the expansion relief valve 42a The brine collecting tank must not be completely closed because otherwise it cannot be guaranteed that the expansion relief valve will work Y Y Y Y Installation instructions geoTHERM 0020051574 03 5 10 Connecting the heat pump to the well water circuit VWW only In most cases if well water is used as the heat source the well system must be run using suction and injection wells The ends of the pipelines of the suction and injection wells must lie deep enough below the well water surface to pre vent the water from taking in oxygen from the air This oxy gen leads to the coagulation of iron and manganese that is dissolved in the water and this in turn may lead to deposits i
129. ng pressure of 300 kPa 3 bar The brine expansion tank must be two thirds full of fluid gt f required repeat the process gt Remove the hose from the stop valve 62 The system is also bled after the heat pump is started up gt Ch 8 1 4 and gt Ch 8 1 5 gt If there is any brine fluid left over store this in a suitable container e g a plastic canister for subsequent replen ishment gt Label the container with the specifications regarding the type of brine fluid and the set concentration Installation instructions geoTHERM 0020051574 03 gt Pass the container on to the operator to be stored gt Point out to the operator that there is a risk of injury when handling brine fluid 6 4 Filling the DHW tank if required Y Open the cold water inlet pipe to a connected DHW tank Open a domestic hot water draw off point Close the domestic hot water draw off point as soon as water escapes gt Then open all of the other domestic hot water draw off points until water escapes before closing them again Y Y 43 7 Electrical installation Danger Risk of electric shock gt Always switch off the power supply to all circuits before carrying out any electrical installation work gt Check that there is no voltage gt Make sure that the power supply is secured against being inadvertently switched on again Caution Risk of damage caused by improper elec trical installa
130. ng pump and close the stop valve 61 gt Remove the hose from the stop valve 61 42 Installation instructions geoTHERM 0020051574 03 6 3 5 Building up pressure in the brine circuit To operate the brine circuit without any problems a fill pressure of between 150 and 200 kPa 1 5 and 2 0 bar is required The expansion relief valve discharges at 300 kPa 3 bar gt f required open all the other stop valves that are not shown in Fig 6 3 gt Open the stop valve 63 Fig 6 3 so that the air in the pipeline between the stop valves 61 and 62 gt Fig 6 3 can escape gt f required open the stop valve 64 Fig 6 3 which can still be closed again due to any partial bleeding so that air in the pipeline between the stop valves 70 and 72 gt Fig 6 3 can escape 6 4 F llstand des Sole Ausgleichsbeh lters pr fen gt Close the stop valve 61 Fig 6 3 and use the filling pump 67 Fig 6 3 to pressurise the brine circuit until the brine expansion tank 1 is filled to no more than two thirds of its capacity and the pressure does not exceed 300 kPa 3 bar gt Now also close the stop valve 62 Fig 6 3 gt Switch off the filling pump 67 Fig 6 3 gt Open the expansion relief valve 42a Fig 6 3 in order to allow any overpressure to escape if it is above the required fill pressure of 200 kPa 2 0 bar and below the expansion relief valve s operati
131. ni VWS only toring source outlet Source outlet temperature T8 too low lt Freeze protect temp parameter in Menu A4 23 No ground water flow VWW only Integrated flow switch does not detect any volume flow 11 3 Fault with temporary switch off 100 Brine pump faulty temperature sen sor T8 faulty Too little volume flow in the brine circuit Air in the brine circuit Filter in the heat source circuit blocked Well pump faulty Motor protection switch on the well pump has tripped Flow switch faulty or not connected Check heat source flow rate Check the quality of plug contact on the cir cuit board and on the cable harness Check sensors for correct operation resist ance measurement based on VR 11 character istics see attachment Replace the sensors Check the volume flow of the brine pump optimum spread approx 3 5 K Bleed the brine circuit Clean the filter Check the correct operation of the well pump and replace if necessary Check the well pump for overload e g through jamming of phase failure Check the well pump sluice and motor pro tection switch and replace if necessary Check the correct operation of the flow switch Installation instructions geoTHERM 0020051574 03 Fault code Error text description Possible cause Solution 27 Coolant pressure too high Heat consumption of heating circuit is too low The integrated high pressure switch tr
132. njeJaduuaj PISJNO Um 1A199291 4DG DYA J9j 043u02 e2uejeq AD1eue pajoJ1uo2 4J9ujesM 2 0 SMA duind yeay WY3HL0eb G Id dn S89 8S LS 9S OS qzy eev ce 6l 9l l Aay 5 2 Sample hydraulic scheme Direct heating mode 25 Installation instructions geoTHERM 0020051574 03 5 2 Installing the mixed circuit with buffer tank 5 24 Description of functions for the heating mode with mixed circuit and buffer tank The heating circuits are connected as a separating tank to the heat pump via a buffer tank and are operated using an external heating circuit pump via a heating circuit mixer By default this is controlled by a flow temperature setpoint control gt Ch 9 4 3 The VF2 flow temperature sensor sits behind the external heating circuit pump underfloor protective circuit The heat pump responds to a demand for heat from the buffer tank 5 2 2 Installation instructions Y Install the hydraulic components in accordance with the local requirements and as shown in the sample hydraulic scheme below gt f you do not use the optional accessory heat pump brine filling unit for heat pumps 56 Fig 5 3 install the individual hydraulic components accordingly Fig 5 9 gt Connect a limit thermostat to ensure the underfloor heating function on the heat pump gt Connect the VF2 flow temperature sensor to ensure the integral energy function gt When starting up the unit set Hydraulic Scheme No 2 in
133. nsulation gt Do not set the heating flow temperature too low during cooling Installation instructions geoTHERM 0020051574 03 During cooling condensation forms on the radiators and their supply lines and this causes mould to form and struc tural damage gt Do not install the geoTHERM heat pumps with external passive cooling in heating installations that have radia tors Preventing environmental hazards VWS only The brine fluid that is contained in the heat pump must not reach the drainage system surface water or groundwater gt Dispose of the brine fluid that is in the water pump in compliance with local regulations Using surface collectors disrupts the cooling function When using a Vaillant heat pump with external passive cooling ground sensors must be used 2 4 Safety instructions regarding coolant Preventing freezing The heat pump is delivered with an operational filling of R 407 C coolant This is a chlorine free coolant which does not affect the Earth s ozone layer R 407 C is neither a fire hazard nor an explosion risk With normal use and normal conditions the coolant R 407 C poses no risk However damage may occur in the event of improper use Escaping coolant can cause freezing if the exit point is touched gt f coolant escapes do not touch any components of the heat pump gt Do not inhale any steam or gases that escape from the coolant circuit as a result of leaks gt Avoid s
134. o low during cooling The heat pump is only suitable for connection to a closed central heating installation To ensure that the unit oper ates smoothly the central heating installation must be set up by authorised specialists in compliance with the applica ble regulations A heat pump is suited to low temperature heating systems For this reason the heating installation must be designed to reach low flow temperatures ideally approx 30 35 C In addition you must ensure that idle times from the power company are taken into consideration To prevent energy losses and to protect against freezing all supply lines must have thermal insulation The pipelines must be free from contamination gt f required clean the pipelines thoroughly before filling them Caution There is a risk of damage due to unsuita ble frost and corrosion protection agents Unsuitable frost or corrosion protection agents may damage seals and other com ponents and may therefore also cause leaks in the water outlet gt Only add permitted frost or corrosion protection agents to the heating water For heating installations that are overwhelmingly fitted with thermostatically or electrically controlled valves you must ensure that the flow through the heat pump is continuous and sufficient Irrespective of the choice of heating installa tion the rated volume flow of heating water Tab 14 1 or gt Tab 14 2 must be guaranteed
135. ocked mains supply EE 53 Connecting a limit thermostat dual circuit suppl 54 Connecting external brine switch VWS only 55 Connecting an external 3 way brine mixing valve cooling VWS only for optional external passive elle ul SE 56 Controller PCB overview eene 57 Installation instructions geoTHERM 0020051574 03 7 5 7 54 7 5 2 7 6 T4 CO 7 1 2 7 8 7 84 7 8 2 7 9 740 EN 84 1 8 1 2 81 3 84 4 8 1 5 8 1 6 8 2 91 9 2 9 3 9 31 9 3 2 9 3 3 9 4 9 41 9 4 2 9 4 3 9 5 9 6 9 7 9 7 1 9 7 2 9 7 3 9 7 4 9 8 10 10 1 10 2 10 3 10 4 Installing the supplied accessory 58 Installing the VR IO 58 Installing the VRC DCF ees 58 Installing accessories that are absolutely DEES AEN ui dat eden eite tede eie e da Installing optional accessories Installing VR O90 estre terrere ia Installing CR nocti Connecting an external boiler ee Connecting an external boiler with eBUS interface dert ree ere eere ee ER o REPE NEU PLUR 61 Connecting an external boiler without eBUS interfaces cote e ede ORE 62 Fitting the cladding and the operating panel 62 Installing vrnetDIALOG 840 2 and 860 2 65 Start up eege Carrying out the initial commissioning Selecting a hydraulic scheme Selecting the electric wiring diagram Implementing the settings
136. ode the pre minimum and run on times of the compressor pumps and other components are not heeded Diagnosis D1 Coolant circuit Test gt no Comp high pressure 11 9 bar T outlet compressor 66 C Comp Low Pressure 2 3 bar T inlet compressor 0 c Test no off heating hot water Setting the operation mode for the heat pump in order to test the per formance of the heat pump Comp High Pressure Display for compressor outlet refrigerant pressure T outlet compressor compressor outlet high pres sure Display of temperature sensor T1 Comp Low Pressure Display for compressor inlet refrigerant pressure T inlet compressor compressor inlet intake side Display of temperature sensor T2 9 7 Menu D Carrying out diagnoses see Figs 1 and 2 in the appendix Installation instructions geoTHERM 0020051574 03 83 Display shown Description Superheating Superheating of the coolant calculated Factory setting Diagnosis D2 from T2 and low pressure sensor Only dis Coolant circuit played when the compressor is operating Superheating 6K Subcooling 10K If the display 50 9C appears the tem Temp TEV inlet 10 C perature sensor T2 on the compressor Compressor On inlet is faulty No warning message is recorded in the Error History Subcooling Subcooling of the coolant calculated from T4 and high pressure sensor Only dis played whe
137. off Freeze protect temp VWW only Protection gt Select against frost 4 C Tool AS Caution OFF Component Test 1 Risk of damage due to improper operation lt HK2 P gt On The electronics of the high efficiency lt CP gt OFF pump and the compressor may be lt ZH gt OFF damaged by overfrequent starts SK2 P OFF gt Start the pumps and the compres select D sor a maximum of three in any one i hour CH pump On Compressor On Brine pump On The component test can be used to test the actuators Soft start On of the heat pump This intervention lasts for a maxi mum of 20 minutes and ignores current controller UV HK inputs during this time The heat pump then returns l Brine Imber Open to the previous operating state When the compressor is switched on the heating circuit pump and brine pump are also automatically connected UV1 Heating cylinder charging diverter valve in position DHW Hot water preparation CH Heating mode 9 9 Menu A Calling up Installation Assistent 90 Installation instructions geoTHERM 0020051574 03 Display shown Description Only if external passive cooling is installed Brine mixer brine mixing valve in position OFF OPEN CLOSED Cooling valve Heating cooling diverter valve in position OPEN Heating CLOSED Cooling Factory setting This menu only appears if more than one heating cir cuit and at lea
138. oiler as an auxiliary heater menu A3 Tab 9 9 The heat pump switches in the external boiler depending on the heat requirement and controller setting The emergency frost protection function for the heat pump and a DHW tank remain 61 7 8 2 Connecting an external boiler without eBUS interface Caution Risk of damage due to freezing If the value DHW CH Hot water or CH is set in menu A3 Tab 9 9 hydraulic integration of the auxiliary heater for the auxiliary heater in accordance with the hydraulic scheme emergency frost protection is only available for the set component s and not for the heat pump and a DHW tank gt f there is a risk of frost in the heat pump s installation space when it is switched off for a prolonged period due to a fault you must ensure that it is pro tected against frost 7 24 Connecting a boiler without eBUS interface gt Install a cut off relay 1 accessory for the boiler gt Remove the connection cable from terminal ZH on the controller PCB 1 Fig 7 18 gt Connect the cable from the cut off relay to this terminal gt After starting up the unit set the hydraulic integration of the external boiler as an auxiliary heater menu A3 Tab 9 9 The heat pump switches in the external boiler depending on the heat requirement and controller setting 62 7 9 Fitting the cladding and the operatin
139. osion gt Insulate all of the pipes in the heating Si 65 circuit using vapour diffusion tight insu lation 61 63 X62 Caution Risk of damage caused by overpressure in the heating circuit 48 64 During operation overpressure may occur 56 70 72 in the heating circuit Ze gt Fit an expansion vessel and an expansion relief valve in the heating circuit as required below For installing the heating installation EN 12828 requires the following afilling valve in order to fill the heating installation with water or to be able to drain water installed in the unit at the factory a diaphragm expansion tank in the return of the heating circuit a safety overpressure valve at least DN 20 opening pressure 3 bar with a pressure gauge safety group in the supply of the heating circuit immediately behind the heat pump an air dust separator in the return of the heating circuit Danger Risk of scalding from steam or hot water If there is overpressure steam and or hot water is blown out via the blow off line of the safety overpressure valve gt Install a blow off line the same size as the outlet opening in such a way that there is no risk to people caused by steam and or hot water when it is blown out gt Install the blow off line in a frost free environment so that it always remains easily accessible and visible We recommend that you install a Vaillant safety group and a drain pipe gt
140. ot o Bae Boo ele ele ABS HERE eee ee Faan 7 5 Duel circuit supply VWS heat pump rate HCNHAN AA DAAA Bebe LAB O O O E 7 6 Duel circuit supply VWW heat pump rate Key Pump brine circuit pump CC Compressor ES Controller Installation instructions geoTHERM 0020051574 03 In this case the heat pump is operated using two electricity rates two consumption meters A permanent standard rate electricity supply 2 ensures the operation of the auxiliary consumers circulation pumps controllers etc across a separate electricity meter The additional reduced rate electricity 1 for the compressor is supplied via a second electricity meter and can be suspended by the power com pany at peak times The duration and frequency of the lock out is determined by the power company or must be clarified with them gt Remove the bypass pipework dashed lines 3 gt Connect the permanent electricity supply to the stand ard rate mains supply 2 49 gt Connect the standard rate electricity supply to the reduced rate mains supply 1 gt Connect the contact of the control system signal receiver to terminal 13 EVU energy supplier Fig 7 18 7 3 3 Connecting the external heating circuit pump Ber Be s cT GIS BET BENT HAN gooololleooo gocce go oo geo oo ooog Seilen n Bien ool I S I goooolgoooo o Boo goo oo ooo 8 8
141. ow for exceptions Fault code 20 Heat source frost protect moni toring source outlet Heat source temperature spread T3 T8 set value Perm temp spread This fault message is deacti vated by default and can only be activated via vrDIALOG parameter Perm temp spread 20 K spread means deactivated 21 Heat source frost protect moni VWW only toring source outlet Source outlet temperature T8 too low 4 C Brine pump faulty temperature sen sor T8 or T3 faulty Too little volume flow in the brine circuit Air in the brine circuit Temperature sensor T8 faulty No full dirt filter in source return Error text description Possible cause Solution gt Check heat source flow rate gt Check the quality of plug contact on the cir cuit board and on the cable harness gt Check sensors for correct operation resist ance measurement based on VR 11 character istics see attachment Replace the sensors Check the volume flow of the brine pump optimum spread approx 3 5 K Bleed the brine circuit Check the temperature level of the heat source Check the quality of plug contact on the cir cuit board and on the cable harness Check sensors for correct operation resist ance measurement based on VR 11 character istics gt Tab 17 2 Replace the sensors Check the volume flow of the well pump optimum spread approx 3 5 K Fit clean dirt filter 22 Heat source frost protect mo
142. p this corre sponds to the 10 digits that come after the 7th digit of the serial number can be found on the sticker on the heat pump or on the identification plate Ch 3 1 Installation instructions geoTHERM 0020051574 03 1 5 CE label The CE label shows that the appliances according to the model overview comply with the basic requirements of the following Directives of the Council Directive 2004 108 EC of the council Directive about the electromagnetic compatibility with the limit class B Directive 2006 95 EC of the council Directive about electrical equipment designed for use within certain voltage limits Low voltage directive The heat pumps comply with the design described in the EC type examination certificate The heat pumps comply with the following standards DIN EN 55014 1 2007 06 2 2002 08 DIN EN 61000 3 2 2007 05 3 3 2009 06 3 12 2005 09 DIN EN 60335 1 2007 2 40 2006 11 2 34 2003 09 Corrigenda 1 2004 10 2 34 A1 2006 03 2 51 2005 05 3 11 2001 04 4 2 2009 12 4 3 2008 06 4 4 2005 07 4 5 2007 06 4 11 2005 02 DIN EN 60529 2000 09 DIN EN 50366 2006 11 EN 50106 1997 EN378 2000 EN 12735 1 2001 EN 14276 12006 EN 12263 1998 2 2007 EN 12102 2008 EN 14511 2007 EN ISO 9614 11995 2 1996 3 2002 ISO 5149 The CE declaration of conformity can be accessed from the manufacturer and can be provided as required Installa
143. perature sensor to ensure the integral energy function gt When starting up the unit set Hydraulic Scheme No 10 in the controller You can choose to use the VPS 2 multi storage tank as a DHW tank gt When connecting the hydraulics observe the gt installation instructions for the cylinder and the gt geoTHERM planning information The 1 diverter valve supplied in the VPS 2 multi storage tank must be replaced by two 3 way diverter valves that must be installed on site The diverter valves must be con nected to the LP UV1 terminal on the controller PCB 2 Fig 7 18 As of VWS VWW 380 2 the VPS 2 1500 multi storage tank must be used 32 The following only applies when installing the optional external passive cooling Caution Risk of malfunction in cooling mode The buffer tank must not be in operation during the cooling mode of the heat pump gt Install a motor driven 3 way diverter valve in both the flow and return so that the buffer tank is avoided in cooling mode Caution Schematic only These examples of hydraulic schemes do not contain all of the shut off and safety instruments that are required for correct installation gt Observe the applicable standards and regulations Installation instructions geoTHERM 0020051574 03 IAn d1 snae ell ZC Q eel BCL duund uorje naur Jajeau Aueipixne 21329 3 Josuas aJnjeJeduJa M0 4 Josuas ainjesadwa MOJ4 Josuas aJnje
144. ply yellow compressor motor red fault display In rush current limiter spare fuse Compressor protector contactor Protection for external electrical auxiliary heater VWW only Control button for well pump overcurrent 46 10 Ti 12 13 14 15 VWW only thermal overcurrent relay VWW only Well pump control contactor VWW only Well pump protector contactor with overcurrent relay motor protection VWS only control contactor brine pump VWS only Protector contactor brine pump Controller PCB Connection strip for sensors and external components Installation instructions geoTHERM 0020051574 03 You can find the configuration of the terminals on the controller PCBs 14 Fig 7 1 and gt Fig 7 2 in gt Ch 7 4 You can find the configuration of the terminals 2 in Ch 7 3 Additionally there are two coiled cables hanging inside the electronic switchbox not shown here small two pole plug eBUS supply line eBUS for operating panel large three pole plug 230 V electricity supply for vrnetDIALOG for the installa tion on the mounting plate below the cover column A control cable for the vrnetDIALOG is also supplied equip ment pack 7 3 Connecting the electricity supply gt Guide the power supply line s through the cable lead through above the pipe connections 1 gt Fig 3 4 gt Guide the lines through the appropriate strain relief clamps and to the terminals on the terminal st
145. r ethanol as a component of the brine fluid This means that the brine fluid has frost protection of 15 C A DN 40 collector hose has a capacity of approx 1litre per continuous metre gt Use a sufficiently large mixing container gt f you use the Vaillant heat transfer fluid concentrate Mix 1 2 96 propylene glycol with water at a ratio of 1 2 If you use other heat transfer fluid concentrates Mix the water and the frost protection agent to the pre scribed concentration gt Mix each mixing batch carefully gt Check the mixture ratio of the brine fluid Vaillant recom mends the use of a refractometer for this purpose Caution The function will be impaired if the brine pipe system is contaminated gt When filling and flushing the system use a dirt filter before the filling pump By doing this you ensure that dirt from wear is completely removed from the pipes of the brine circuit and this guaran tees long lasting trouble free operation of the pump 40 6 3 2 Filling and bleeding the outer part of the brine circuit 6 1 Filling and bleeding the outer part of the brine circuit Key to Fig 6 1 6 3 33 Dirt filter 42a Expansion relief valve 48 Pressure gauge 56 Heat pumps for brine filling unit 57 Brine expansion tank 61 Stop valve 62 Stop valve 63 X Stop valve 64 Stop valve 65 Brine collecting tank 66 Brine container 67 Filling pump 70 Stop va
146. ral heating Installation instructions geoTHERM 0020051574 03 9 3 2 Settable functions at code level Floor drying This function can be used to heat dry a newly laid floors gt Tab 9 1 The flow temperature corresponds to a routine stored in the controller and is independent of the outside temperature When the function is enabled all selected operation modes are interrupted Menu C6 gt Tab 9 6 ee Target flow temperature for this day Starting temper ature 25 C 1 25 C 2 30 C 3 35 C 4 40 C 5 12 45 C 13 40 C 14 35 C 15 30 C 16 25 C 17 23 10 C frost protection function pump in operation 24 30 C 25 35 C 26 40 C 27 45 C 28 35 C 29 25 C 9 1 Floor drying procedure The operating mode is displayed together with the current day and the target inlet temperature The current day can be set manually If the brine circuit heat source circuit has not yet been completed the floor can be dried using the auxiliary heater gt To do this select the value Aux heating only for the parameter Aux on during CH in the Menu C7 Auxiliary heater Tab 9 6 Caution Possible overloading of the heat source due to excessive energy consumption During floor drying e g in the winter months the heat source may be over loaded and its regeneration may be degraded as a result gt When outside temperatures are low ena ble an external auxiliary heater for floor
147. remote control units gt Ch 7 7 1 SE DCFO AF BUS DCF AF NU 12 1xzP Tel 7 22 Installing further mixed circuits with VR 60 gt Information about the system design can be found in gt Fig 7 22 Observe the gt installation manual for the mixer module 7 8 Connecting an external boiler You can use an existing external boiler as an auxiliary heater You can use the VR 32 accessory to connect boilers with Vaillant eBUS interfaces to the eBUS of the heat pump gt VR 32 installation instructions Boilers without eBUS interfaces are connected using a cut off relay accessory and the auxiliary heater contact 1 Fig 7 18 Installation instructions geoTHERM 0020051574 03 When connecting an external boiler it is not pos sible to have any legionella protection in the DHW tank 7 8 44 Connecting an external boiler with eBUS interface a H E Slbasal 7 23 Connecting a boiler with eBUS interface gt In the external boiler install the bus coupler VR 32 gt VR 32 installation instructions gt Set the eBUS address switch of the VR 32 to 2 gt Connect the eBUS cable of the VR 32 bus coupler to the eBUS interface on the controller PCB of the heat pump 11 Fig 7 18 gt After starting up the unit set the hydraulic integration of the external b
148. ressure 20 kPa 0 2 bar Heat pump shuts down and goes into operation automatically when the pressure rises above 40 kPa 0 4 bar 11 4 Fault with permanent switch off 106 Emergency mode possible possible Possible cause Solution See Error 29 Motor protection switch of the compressor Kriwan module has opened due to excessive winding temperature See Error 29 Kriwan module closes of its own accord after 30 minutes For VWS VWW 22 2 and 30 2 only Circuit breaker of the tempera ture monitor on the in rush cur rent limiter faulty For VWS VWW 38 2 and 46 2 only The fault relay on the in rush cur rent limiter has responded The red LED on the in rush cur rent limiter is flashing 2x 7 Incorrect phase sequence 3x Compressor motor overcur rent 4x 7 Thyristor module excess temperature 5x Low voltage phase failure 6x Min max power frequency 7x No compressor connected For VWS VWW 38 2 and 46 2 only Phase failure in combination with fault 94 Pressure drop in the heating sys tem due to leaks air cushions or a faulty expansion vessel Screw couplings at the rear of the heat pump are not sealing correctly gt Check bypass ICL compressor and wiring If the green LED on the in rush current limiter does not light up the temperature monitor circuit breaker is faulty gt Inform the factory
149. rget value gt Check the contact of the temperature sensor with the medium to be measured and estab lish a proper contact if necessary 11 1 Faults in eBUS components 11 3 Faults with temporary warning The following warnings are caused by temporary malfunc tions in the operation of the heat pump The heat pump including the compressor remains in operation The follow ing faults are displayed in the Menu E 1 as a warning mes sage and in the Error History operating instructions 11 2 Faults with temporary warning Installation instructions geoTHERM 0020051574 03 Fault code Error text description Possible cause Solution 26 Overheating on compressor Excessively high output with a high Reduce the heating curve pressure side flow temperature Check the required heating output floor dry ing building shell and reduce if necessary VRC DCF receiver with integrated Connect the VRC DCF receiver provided outside temperature sensor not con nected display 60 C calculated flow temperature too high 36 Low brine pressure Pressure drop in the brine circuit Check the brine circuit for leaks VWS only due to leaks or air cushions Top up the brine fluid Pressure lt 60 kPa 0 6 bar Rinse and bleed the brine circuit 99 11 4 Fault with temporary switch off The compressor shuts down the heat pump remains in operation The compressor can start again after 5 min at the earliest see bel
150. rip gt Wire the connections as illustrated in the connection dia gram gt Tighten the strain relief clamps The power companies provide various types of power sup ply for heat pumps The heat pump can be operated with various types of mains feed Two types of connection are described in the following pages Installation instructions geoTHERM 0020051574 03 47 7 3 1 Unblocked mains supply electric wiring diagram 1 Va 5 7 3 Unblocked mains supply VWS electric wiring diagram 1 as delivered BEN L5 L2 ill L1 PE glooooeleooo GEZ Boo Doo See SoMa 9 I9 9 9 9 I giel Beie Re Ie I9 o 8 i a2ooooBpoooo GEI Boo mBoo oooof9 7 4 Unblocked mains supply VWW electric wiring diagram 1 as delivered Key This is how the heat pump is wired when delivered The heat pump is connected to the supply network using a Pump brine circuit pump single electricity rate a consumption meter 1 gt Connect the electricity supply to the primary mains sup Se Compressor ply D mw Controller 48 Installation instructions geoTHERM 0020051574 03 7 3 2 Duel circuit supply heat pump rate electric wiring diagram 2 1 2 3 400 V Sos l SE i 2 2 A TEA temp oo PEJ N L IPE N L Ll 1 2 N JRE EE ooa Ell El ee ooo Bolo oo ooo EIERE SIE EIS ST 9 I 9 9 99 EI eloo oo oaea goooogoeooosoool
151. same volume flow rates as for the nominal output test under standard nominal conditions with nominal vol ume flow rates and a spread of AT 3K in the brine circuit and AT 5K in the heat ing circuit dB A 63 63 63 65 DC Interior dry 7 25 B 10 W25 B 10 W55 B 5 W62 B20 W62 B20 W25 Operation of the pump outside the application limits results in the heat pump being switched off by the internal control and safety installations 141 Technical Data VWS Installation instructions geoTHERM 0020051574 03 113 14 2 Technical Data VWW metric flow rate Description Unit VWW 220 2 VWW 300 2 VWW 380 2 VWW 460 2 Type Water to water heat pump Area of application d The heat pumps are intended exclusively for domestic use as heating appli PP ances for closed heating and hot water systems and for hot water generation Dimensions Height without connections mm Width mm Depth without pillars mm Depth with pillars mm Weights Total weight with packaging kg without packaging kg ready for operation kg Electrical data Nominal voltage Measuring voltage Compressor 3 N PE 400V 50Hz Control circuit 1 N PE 230V 50Hz Brine pump Well pump on site 3 N PE 400V 50Hz max 3x 5 A 3 N PE 400V 50Hz max 3x 8 5 A CH pump on site 1 N PE 230V 50Hz max 2 A Auxiliary heater system on site 3 N PE 400V 50Hz Power
152. selected the hydraulic scheme that corresponds to your heating installation Tab 8 1 The sample hydraulic schemes for your heating installa tion can be found in gt Ch 5 1 to Ch 5 5 gt Press the dial E to confirm your selection 5 2 R 3 v x i EE ee S o z 5 PE E 3 e eE E NEEE 9 a suf 5 5 9 amp S S n I o m T a Ge o 5 2 1 X prohibited AF VF2 AF VF1 5 3 2 X X possible VF2 RFI 5 4 3 X X prohibited AF SP VF2 AF SP VF1 5 5 VF2 RF1 AF SP VF1 3 6 VF2 RF1 8 1 Selecting the hydraulic scheme no 8 1 2 Selecting the electric wiring diagram gt Turn the E dial until the cursor gt points to the electric wiring diagram number gt Press the dial E The parameter is shown with a dark background and is activated gt Turn the dial E until you have selected the electric wir ing diagram that corresponds to your electricity supply 1 or 2 gt Ch 7 3 1 Unblocked mains supply 2 Duel circuit supply heat pump rate gt Press the dial E to confirm your selection Installation instructions geoTHERM 0020051574 03 8 1 3 Implementing the settings gt Turn the E dial until the cursor gt on the right hand side of the menu entry Accept change points to NO gt Press the dial E The parameter is shown with a dark background and is activated gt Turn the E dial until YES appears gt Press the dial E to confirm your
153. selection gt Work through all of the other menu options in the Instal lation Assistant until the end and make all of the settings that you require End of Installation Assistant Install completed NO Adjustable values 8 4 Menu Ending the installation gt Only set Install completed to YES if you are sure that everything has been set correctly If you confirm YES the controller switches to the basic display The heat pump starts under its autonomous control system 8 1 4 Checking and bleeding the brine circuit VWS only The brine circuit must be bled over the intended period of 24 hours gt Do not decrease this amount of time by cancelling the operation because this will mean that air remains in the brine circuit and you will have to repeat the operation Tool AT Venting prog OFF 8 5 Menu AT Starting the system venting programme gt n menu A7 gt Ch 9 7 4 select the option Venting prog and set it to ON While the bleeding function is active the brine pump switches between operating for 5O minutes and being idle for 10 minutes 67 gt Check that the fluid level in the brine expansion tank has stabilised in other words that there are no longer any significant fluctuations gt Allow the brine pump to continue running so that the air that is contained in the brine circuit can be captured in the brine expansion tank When the air esc
154. ss 1S ER v Brag qzy ez ES 6l EI ael ecl el e st 10 Aay t with buffer ircui 5 5 Sample hydraulic scheme The mixed c tank and DHW tank 31 Installation instructions geoTHERM 0020051574 03 5 5 Installing the mixed circuit with buffer tank DHW tank and external passive cooling VWS only 5 5 1 Description of functions for the heating mode with buffer tank DHW tank and external passive cooling The heating circuits are connected as a separating tank to the heat pump via a buffer tank and are operated using an external heating circuit pump via a heating circuit mixer By default this is controlled by a flow temperature setpoint control Ch 9 4 3 The VF2 flow temperature sensor sits behind the diverter valve in the heating flow because of the cooling function The heat pump responds to a demand for heat from the buffer tank The heat pump also operates a DHW tank 5 5 2 Installation instructions Y Install the hydraulic components in accordance with the local requirements and as shown in the sample hydraulic scheme below gt f you do not use the optional accessory heat pump brine filling unit for heat pumps 56 gt Fig 5 6 install the individual hydraulic components accordingly Fig 5 9 Dimension and install an external cooling heat exchanger gt Connect a limit thermostat to ensure the underfloor heating function on the heat pump gt Connect the VF2 flow tem
155. st one VR 60 are installed The component test 2 can be used to test the actua tors of the connected accessories This intervention lasts for a maximum of 20 minutes and ignores cur rent controller inputs during this time Afterwards the heat pump reverts to its previous operating condition Tool AT Venting prog OFF Venting prog VWS only System venting pro gramme is started by inputting the value 20 The brine pump alternates between 50 minutes operating and 10 minutes off A connected circulation pump as well as the heating cylinder charging diverter valve and cooling diverter valve only if external passive cooling is installed are also put into operation or switched Tool A8 Calibration Outside temperature 0 0 K DHW sensor SP 0 0K VF2 flow sensor 0 0K Buffer sensor RF1 0 0 K gt Select correction value L Tool A8 Calibration T buffer top lt VF1 gt 0 0K Display contrast 16 Manual adjustment of the displayed temperatures Offset adjustment range Outside temperature 5 K step size 1 0 K DHW sensor SP 3 K step size 0 5 K VF2 flow sensor The flow sensor VF2 is always dis played 3 K step size 0 5 K Buffer sensor RF1 3 K step size 0 5 K T buffer top lt VF1 gt 3 K step size 0 5 K Internal sensors can only be changed via vrDIALOG or vrnetDIALOG and buffer and cylinder sensors only with the appropriate hydraulics
156. switch off threshold TT P Parameters Buffer tank enee ele Hale BE Floor drying ssesessss s Heating installation Legionella protection oi sae ve Solar CET VR 60 EG VRID Obs EE S Safety InStEFUCLEIOTIS scssscscsasscescecsssessssasiessocatsosseecssesbecsssessecasdenceassios 6 ie ee VT E 16 Scope of dellVery wcccicccascsecscscscovsessscvaseanssavtencsevesconsenssevasconceavaeseses 18 Sentinel Symbols used 129 T Transport lOCK iss scsssecsscssccseceascosesesscesensveosavcaeceavsonaceseseonsnsvecsaseseenss 19 TYPO COSIQN ATION EE 4 W Water hardness 20 38 Well water QUAIL onere oer Pee xe etx 14 130 Installation instructions geoTHERM 0020051574 03 Supplier Vaillant Ltd Nottingham Road 8 Belper 8 Derbyshire 8 DE561JT Telephone 0845 602 2922 B www vaillant co uk 8 info vaillant co uk Manufacturer Vaillant GmbH Berghauser Str A0 8 D 42859 Remscheid 8 Telefon O 21 91 18 0 Telefax O 21 91 18 2810 8 wwwvaillant de 8 info vaillant de ject to change 0020051574 03 GB 122011 Sub
157. system Display shown Description Factory setting Menu C Set parameters for the heating You can set parameters for the various functions of system the heat pump in the menus C1 to C1 Code level change Menu for changing the code number 1000 You can replace the standard code 1000 Code number with a user defined four digit code here gt 0000 If you change the code make a note of the new code otherwise you will no longer be Accept change able to make changes in the Code level Adjust numeric character If a VR 60 is connected this menu appears several C2 nike times for each heating circuit Parameters Type Direct circuit Type Direct circuit for direct hydraulic systems Heating curve 0 30 Mixed circuit for buffered hydraulic systems Max limit outs temp 20 C Fixed value Comp starts at 120 min i Heating curve Adjustable heating curve not with 0 3 gt Select temperature fixed value Max limit outs temp Temperature threshold for 20 C Tue cl switching off Heating mode summer function Parameters Comp starts at Set the degree minutes until com Max limit outs temp gt 20 C pressor start only with direct hydraulics Comp starts at 120 min Minimum temperature 15 c Minimum maximum flow temp Setting the limiting 15 C temperatures min and max that the heating 43 C circuit can request The maximum flow temperature
158. t be changed Installation instructions geoTHERM 0020051574 03 9 3 Settable functions You can set the following functions on the controller your self and thereby adjust the heating system to local condi tions or to the requirements of the operator The interface and setting options of the control ler are divided into three levels Operator level gt for the operator Code level gt for the expert technician vrDIALOG gt for the expert technician 9 3 1 Settable functions at operator level Timer programmes Holiday programming Energy saving function Override One time recharging Cooling function The cooling function is possible if additional external components not included in the delivery are installed Detailed information on this can be found in the gt geo THERM planning information For a description of the functions operating instructions Emergency operation after a fault with consequent per manent switch off manual In the event of a permanent switch off due to a fault emer gency operation can be enabled manually using the auxil iary heater gt Ch 11 5 The following parameters are shown in the display under the fault message Low pressure switch off Reset YES NO YES removes the fault message and enables compressor operation DHW priority YES NO YES enables the auxiliary heater for hot water handling CH priority YES NO YES enables the auxiliary heater for cent
159. the coolant gt Check the quality of plug contact on sensor fault short circuit in the pres sure sensor circuit is faulty or not properly plugged in the circuit board and on the cable har ness gt Check the pressure sensor for correct operation gt Replace the pressure sensor 11 4 Fault with permanent switch off Installation instructions geoTHERM 0020051574 03 107 11 6 Other errors malfunctions Malfunction sign The auxiliary heating system does not work even though it has been enabled by the controller e g during the switch off time by the power supply operator energy sup ply company switch off time the heating system or the DHW tank do not reach the desired temperature Noise in the heating circuit Possible cause The auxiliary heating system is connected on a low rate tariff and this tariff has just been blocked by the power supply operator The auxiliary heating safety thermostat has triggered Solution gt Check whether the auxiliary heating is on a low rate tariff and a power com pany blockage is in effect gt Release the safety thermostat by press ing the pushbutton Possible causes if the thermostat trips again Air in the heating system Blocked dirt filter in the return of the heating system gt Bleeding heating circuit Clean the blocked dirt filters The heating pump has stopped or is running too slowly Air in the heating circuit gt C
160. this time period the circulation pump clocks in accordance with the set percentage value The circulation pump does not start if the DHW cylinder is still too cold Recommended settings for systems with VPS 2 gt Planning information Param vax Maximum flow temp 95 oc This menu only appears if a solar tank is installed e g VPS 2 Maximum flow temp If sufficient solar energy is available a connected buffer tank VPS 2 is heated beyond the target temperatures for heating and hot water to the maximum tempera ture set here The heating circuits connected to the buffer tank must be mixed circuits 9 6 Menu C Set parameters for the heating system 82 Installation instructions geoTHERM 0020051574_03 9 7 2 Menu D Carrying out diagnoses Display shown Description Factory setting Menu D Perform diagnostics Caution Risk of damage to heat pump com ponents In diagnosis mode internal safety equipment and settings are disabled Frequent switching on and off can lead to compressor damage gt As far as possible do not switch diagnosis mode on and off repeat edly in succession In Menus D1 to D5 you can operate and test the heat pump in diagnostic mode For each setting it is not possible to exit the diagno sis menus except Test no menu D1 The sys tem is automatically reset 15 minutes after the last keypress In the diagnostic m
161. tion The electrical installation must only be car ried out by an approved qualified electri cian gt Carry out the described installation work correctly Caution Risk of malfunction due to improper run ning of lines The lines for the external sensor eBUS and room thermostat carry low voltages Envi ronmental interferences may affect the sensor lines and send incorrect information to the heat pump controller gt Lay low voltage lines such as sensor lines on site in the building so that they are a suitable distance from the power lines If low voltage lines and mains volt age lines are laid in parallel a minimum clearance of 25 cm applies for a length of 10 m Caution Risk of damage caused by an inadequate separator You must be able to switch off the electrical connection using an on site three pole adjustable separator with a contact opening of at least 3 mm e g circuit breaker The separator must provide coupled fuses so that all other fuses also switch off if one fuse drops gt Ensure that a corresponding separator is available on site 44 Caution Risk of short circuits If lines longer than 30 mm are stripped short circuits may occur on the PCB if the lines are correctly secured in the plug gt Strip the 230 V lines in order to connect to the ProE plug For safety reasons do not strip the lines to any more than 30mm and ensure that they are secure in the plu
162. tion instructions geoTHERM 0020051574 03 2 Safety instructions and regulations 2 1 Safety and warning information The appliance may only be installed by a competent person approved at the time by the Health and Safety Executive We accept no liability for any damage caused by failure to observe these instructions gt When installing the geoTHERM heat pump observe the general safety and warning information that may appear before an action 24 1 Classification of warnings The following danger signs and signal words are used to classify the warning notes in accordance with the severity of the possible danger Danger sign Signal word Explanation Immediate danger to life IN Danger or risk of severe personal injury Danger of death from Danger electric shock Danger of slight Warning personal injury Risk of material or envi Caution ronmental damage 2 1 Meaning of danger signs and signal words 2 4 2 Structure of warnings Warning signs are identified by an upper and lower separat ing line and are laid out according to the following basic principle Signal word Type and source of danger Explanation of the type and source of dan ger gt Measures for averting the danger 2 2 Intended use Vaillant geoTHERM heat pumps are state of the art units which are designed in accordance with recognised safety regulations Nevertheless there is a risk of death or serious injury to t
163. tion over to the operator gt Instruct the operator of the heating installation on how to handle and work all of the units gt Pass all of the manuals and documentation for the unit to the operator to be stored gt Make the operator aware that the manuals must be kept in the vicinity of the heat pump Point out to the opera tor that the heating installation must be inspected at regular intervals Caution Risk of damage caused by deactivating components for frost protection gt Inform the operator about the prerequi sites for emergency operation and the automatic frost protection function Some operators generally want any optional electric auxil iary heater to be completely shut down In menu C7 Tab 9 6 if Auxiliary heater is set for Aux on during CH and Domestic hot water mode is set for No CH the emergency operation is not supported How ever the frost protection function can still be used acti vates itself automatically If in menu A3 gt Tab 9 9 hydraulic integration of the auxiliary heater is set to none neither the emergency operation nor the frost protection function can be used At the factory by setting None in menu A3 no external electric auxiliary heater is included Installation instructions geoTHERM 0020051574 03 9 Adapting the appliance to the heating system To operate the heat pump economically it is important to match the control system to the customer s he
164. tted modes of transport Installation instructions geoTHERM 0020051574 03 4 8 Installing the heat pump gt When installing the heat pump ensure that the minimum wall clearances gt Fig 4 2 and gt Fig 4 3 are kept 4 7 Adjust the adjustable feet gt Adjust the adjustable feet to ensure that the heat pump is horizontal Only fit the cladding panels after you i have completed all of the installation work gt Ch 7 9 22 Installation instructions geoTHERM 0020051574 03 5 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 heat pump and cause malfunctions gt Flush the heating system thoroughly before connecting the heat pump in order to remove any possible residue Caution Risk of damage caused by leaks Mechanical stress on the supply lines may cause leaks and as a result will cause dam age to the heat pump gt Avoid mechanical stress on supply lines gt Observe the minimum radius of r 300 mm for the supplied flexible con necting hoses 5 1 Handling flexible connecting hoses The installation must only be carried out by a qualified heating engineer gt When installing the pipes pay attention to the measure ment and connecting drawings gt Fig 4 1 and gt Fig 4 2 gt During the instal
165. ture too low Cooling Hours Brine pump operating hours in cooling mode 5K 20 C 9 6 Menu C Set parameters for the heating system Installation instructions geoTHERM 0020051574_03 Display shown Description Factory setting gt Select L dlanalia protect co Legionella protect OFF Mo Tu We Th Fr Sa Su OFF Parameters Legionella start The time which was set determines 04 00 Legionella protect OFF when the legionella protection function starts Legionella start 04 00 The legionella protection function is carried out by the auxiliary heating on the preset day of the week at the preset time if the auxiliary heating has been acti gt Select vated For this function the controller sets the flow target temperature to 76 C 74 C 2 K hysteresis The legionella protection function is terminated when the current flow temperature at the cylinder has reached 73 C for at least 30 min or after 90 minutes if 73 C is not reached e g if hot water is drawn during this period The processes of the legionella protection function start in a connected drinking water station VPM W Pump control C10 Circulation pump The setting range 1 100 is not a 100 96 Parameters setting for the pump output but is a division of Circulation pmp 100 time periods relating to an interval of 10 min e g 80 8min operation 2 min break The time period is active In
166. tus ON OFF Brine pressure VWS only Brine pressure at the heat source pressure sensor e Buffer VF1 Flow temperature sensor VF1 of the Diagnosis D5 buffer tank Buffer RF1 Return temperature sensor RF1 of the buffer tank Flow sensor VF2 Current heating flow temperature Current DHW temp Temperature in the DHW tank lt UV1 gt Status of the 3 way diverter valve for heat ing cylinder charging CH heating circuit HW hot water 9 7 Menu D Carrying out diagnoses see Figs 1 and 2 in the appendix Installation instructions geoTHERM 0020051574 03 85 9 7 3 Menu I Display general information Display shown Description Factory setting Menu I Displaying general information In Menus l1 to 14 you can obtain information regarding the settings for the heat pump Error History n Fault number D Fault code 96 10 03 10 07 18 Pressure sensor coolant error Display of the error memory showing the last 20 errors in the order they appeared The last fault to appear always has fault number 1 The fault number is displayed with fault code date time of occurrence and a brief fault description The error number shows the order in which the errors occurred The error code identifies the error A list can be found in gt Ch 11 Turning the adjuster E displays the next fault Statistics 12 Compressor hours Compressor operating hours to User
167. uctions In the UK competent persons approved at the time by the Health and Safety Executive undertake the work in compli ance with safe and satisfactory standards All unvented domestic hot water cylinders must be installed by a compe tent person to the prevailing building regulations at the time of installation G3 Terms and conditions apply to the warranty details of which can be found on the warranty registration card included with this appliance Failure to install and commission this appliance in compli ance with the manufacturer s instructions may invalidate the warranty this does not affect the customer s statutory rights 13 2 Vaillant Service 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 110 Installation instructions geoTHERM 0020051574 03 14 Technical data 14 1 Technical Data VWS Description Unit VWS 220 2 VWS 300 2 VWS 380 2 VWS 460 2 Type Brine to water heat pump Area of application The heat pumps are intended exclusively for domestic use as heating appliances for closed heating and hot water systems and for hot water generation Dimensions Height without connections mm 1200 Width mm 760 Depth without pillars mm 900 Depth with pillars mm 1100 Weights Total weight with packaging kg 356 370 394 417 without packaging kg 326 340 364
168. ue for the underfloor pro tective circuit Underfloor heating systems can be dam aged by excessive temperature caused by too high a switch off value for the under floor protective circuit gt Set the value for the underfloor protec tive circuit to such a level that heated floors cannot be damaged by excessive temperatures Phase monitoring The sequence clockwise rotating field and availability of all phases of the 400 V voltage supply are continuously moni tored during commissioning and consequent operation If the sequence is not correct or a phase fails a fault switch off is applied to the heat pump in order to prevent damage to the compressor In order to prevent this fault message during a shutdown by the power supply operator off period the contact of the control system signal receiver must be connected to termi nal 13 Wiring diagram 2 and 3 Freeze protection function for heat source The outlet temperature of the heat source is constantly measured If this falls below a particular value the compres sor temporarily switches off with the fault message 20 or 21 Ch 11 4 If this fault occurs three times in succession the system shuts down gt Ch 11 5 You can set the value factory setting 10 C for protection against freezing for the geoTHERM VWS heat pumps in the Installation Assistent A4 Ch 9 7 4 A value of 4 C was set in the factory for the geoTHERM VWW heat pumps This value canno
169. uits For more convenient operation you can connect the remote control units VR 90 for the first six heating circuits Ch 7 7 1 Installation instructions geoTHERM 0020051574 03 9 4 2 Energy balance control hydraulics diagram 1 or 3 When you have installed a heating system according to the hydraulics diagram examples for hydraulics diagram 1 or 3 gt Ch 5 1 and gt Ch 5 3 the controller performs an energy balance adjustment For economical and fault free operation of a heat pump it is important to regiment the starting of the compressor The start up of the compressor is the point at which the highest loading on the power mains occurs With the help of the energy balance controller it is possible to minimise starts of the heat pump without compromising the comfort of a pleasant room atmosphere As with other weather controlled heating controllers the controller determines a supply set target temperature by capturing the outside temperature by means of a heating curve The energy balance is calculated on the basis of this flow actual temperature and the flow target temperature and the difference is measured every minute and added 1 degree minute min 1 K temperature difference in the course of 1 minute For a given heat deficiency freely selectable in the control ler Menu C2 gt Tab 9 6 Compr start off the heat pump starts and does not switch off again until the amount of heat supplied is equal to
170. y can only pass from a body at a higher temperature to a body at a lower temperature the coolant in the evaporator must have a lower temperature than the geothermal heat source On the other hand the tempera ture of the coolant in the condenser must be higher than that of the heating water in order to be able to release the thermal energy to it These different temperatures are produced in the coolant circuit by means of a compressor 2 and an expansion 10 valve 4 between the evaporator and condenser The cool ant flows in vapour form from the evaporator into the com pressor where it is compressed This causes the pressure and temperature of the coolant vapour to rise sharply After this process the coolant flows through the condenser where it releases its thermal energy to the heating water by condensation It flows as a liquid to the expansion valve where it expands significantly and in so doing loses much of its pressure and temperature This temperature is now lower than that of the brine well water flowing through the evaporator The coolant can thus take up more thermal energy in the evaporator turning into vapour in the process and flowing to the compressor The cycle starts again If required an external electric auxiliary heater can be switched on by the integrated controller To prevent condensation from forming inside the unit the cables of the brine circuit well water circuit and the coolant circuit must be cold
171. y view them depending on the context The context can always be seen from the menu designation gt To call up the Code level menu select E 9 in the opera tor level operating instructions Display shown Description Factory setting Code level Elo In order to gt Adjust numeric character Code go to the Code level heating engineer level set the appropriate code standard code 1000 and press the adjuster E Code number In order to be able to read setting values without gt 0000 inputting the code you must press the adjuster H Standard Code once You can then read all parameters of the Code 1000 level by turning the adjuster E but you cannot change them Do not turn the adjuster E because by so doing you will unintentionally alter the Code Security function 15 minutes after your last change in the Code level pressing an adjuster your is again reset In order to then return to the Code level you must re input the Code Caution The function may be adversely affected by incorrectly set parame ters Unintentional modification of the sys tem specific parameters can cause malfunctions or damage to the heat pump gt Do not try to access the code level by making arbitrary entries in the code level 1000 9 5 Calling up Code level menus Installation instructions geoTHERM 0020051574 03 75 9 71 Menu C Set parameters for the heating
172. you use the correct seals on the connections If the seals with metal support rings are not The pipes must be installed and the seals must be used in accordance with gt Fig 5 8 The installation must be carried out by a qualified heat ing engineer gt During the installation observe the applicable regula tions Caution Risk of impaired function Air in the heating system leads to impaired operation and reduces the heating output gt Fit bleed valves as required 5 7 Removing the blind caps gt Remove the blind caps 1 from the unit s connections These are no longer required and can be properly dis posed of 34 5 8 Fitting the flexible connecting hoses Key 1 2 3 A Heating flow Heating return From the heat source to the heat pump From the heat pump to the heat source Fit two of the supplied flexible connecting hoses that have the yellow green flat seals from the fittings pack to the heating circuit connections 1 and 2 Fit two of the supplied flexible connecting hoses that have the seals with metal support rings from the fittings pack to the brine well water circuit connections 3 and 4 Installation instructions geoTHERM 0020051574 03 5 7 Connect the heat pump to the heating 5 8 Connecting the heat pump to the brine circuit circuit VWS only Caution 42a Risk of damage caused by condensation water Condensation can cause corr
173. z o ZS Els E 17 6 Appendix Electrical circuit diagram VWW 380 2 VWW 460 2 128 Installation instructions geoTHERM 0020051574 03 Index A Additional Tunchions EE Alignment Article number dts s sus Ve EE ul ei EE B Blocking error Brine expansion tank TA T a n Brim SWItGh VE C CE LAD 5 Connection pipework eese ettet ennnnntns 23 GCOMMECTIONS x2 reete tiet x eei e ee eX P ee ea exe d 11 D diagnosis Central Heatin UE 84 Coolant circuit Heating circuit m Heat SOUECe EE DIMENSIONS EATER T F AA 1O EE 38 Frost protection Domestic hot water cylinder Emergency function di i m elt ul Le DEN 69 G Groundwater quality eese na 14 H Heating CUBVE geteilt 77 Heating water Liebe le VE 38 RUE E 38 Installation instructions geoTHERM 0020051574 03 l Information Error HIStO EE 86 Software version E is ue 86 Er digo 86 Installation Assistent Cylinder type eesriie 80 90 Electric Wiring Diagramm 88 Wee ge teg e E 90 Hydraulic scheme esses reete tnennnnen Language selection Installation clearances ae ee Installation reguirements EEN 14 Installation space 14 Installer evel eR tet ee 75 L Limit thermostat nette tenente enel 55 M EE ele rettet a RU 4T O Outside temperature

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