Vaillant geoTHERM exclusive Installation Instructions Manual Download Page 88

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Installation instructions for geoTHERM exclusive VWS 0020051614_00

VRC-DCF outside temperature sensor

Temperature (°C)

Resistance (ohms)

-25

2167

-20

2067

-15

1976

-10

1862

-5

1745

1619

1494

1387

1246

1128

1020

920

831

740

Table 3 Appendix, VRC DCF sensor characteristics

Appendix

Summary of Contents for geoTHERM exclusive

Page 1: ...For the heating engineer Installation instructions geoTHERM exclusive Heat pump with integrated domestic hot water cylinder and additional cooling function VWS GB...

Page 2: ...lation 31 6 1 Safety and installation information 31 6 2 Regulations pertaining to electrical installations 32 6 3 Electrical control box 32 6 4 Connecting the power supply 32 6 4 1 Unblocked mains su...

Page 3: ...ectric shock H Danger Danger of burning and scalding a Caution Potentially dangerous situation for the product and environment h Note Useful information and instructions Symbol for a necessary task Co...

Page 4: ...is subject to Building Regula tion approval notify the Local Authorita of intention to install In the event of parts replacement use only genu ine spare parts supplied by Vaillant Ltd 1 6 Intended use...

Page 5: ...uxiliary heating Rated maximum power Rated power compressor pumps and controller Rated power auxiliary heating Start up current without start up current limiter 16 A Start up current with start up cur...

Page 6: ...sts of separate circuits which are cou pled to one another by means of heat exchangers These circuits are The heat source circuit by means of which the energy from the heat source is transported to th...

Page 7: ...ger an additional mixer valve and an auxiliary diverter valve In the case of Vaillant heat pumps with cooling functions the princi ple of passive cooling is applied in which heat is transported via an...

Page 8: ...ng 4 3 1 2 6 5 9 8 7 Fig 2 6 Rear view Key to Fig 2 6 1 Hot water connection of domestic hot water cylinder 2 Cold water connection of domestic hot water cylinder 3 Heat source to the heat pump 4 Heat...

Page 9: ...he auxiliary heating 6 Power supply connection 7 3 way changeover valve cooling 8 3 way valve heating cylinder charging 9 Electrical auxiliary heating 10 Brine mixing valve 11 Heating circuit pump 12...

Page 10: ...sioning using the basic hydraulic circuit that was en tered previously Protection against loss of heating water Shuts down when there is a loss of heating water and switches on again when there is suf...

Page 11: ...e damaged as a result and this can lead to water leaks You should soften the heating water if the water hard ness is above 3 0 mmol l 21 05 e You can use the Vaillant ion exchanger Art No 990 349 for...

Page 12: ...e protective equipment d Danger R 407 C coolant Do not inhale gases or vapours emanat ing from leaks in the coolant circuit Risk to health Avoid contact with the skin and eyes Escaping coolant can cau...

Page 13: ...VNB 4 2 Requirements of the installation site Install the geoTEHRM heat pump with integrated domes tic hot water cylinder in a suitable position in the build ing and at the same time pay attention to...

Page 14: ...oTHERM exclusive VWS 0020051614_00 14 4 3 Dimensions and clearances 1800 600 0 10 1 90 18 835 650 696 600 75 75 260 12 280 Fig 4 1 Dimensions and clearances 1 Adjustable feet adjustable in height by 1...

Page 15: ...over system to the user and familiarise him with it 4 5 Preparatory work in the installation area 1 1 2 3 3 Fig 4 3 Preparatory work in the installation area Make sure that the substrate is sufficient...

Page 16: ...ling a Caution Risk of damage Do not add any antifreeze or corrosion protection agents to the heating water as seals and other components can be damaged as a result and this can lead to water leaks In...

Page 17: ...cold water pipe in a suitable location next to the domestic hot water cylinder Make sure there is sufficient space for maintenance and the connection of the discharge pipe from the expansion relief va...

Page 18: ...drain pipe exceeds the val ues specified in table 4 2 below the line diameter must be increased During the installation of the drain pipe the G3 specification must be observed The cylinder relief valv...

Page 19: ...as high discharge point Possibility considering the impact of wind that somebody is in the range of water that is flowing out and if this is the case whether the water is already cooled down enough su...

Page 20: ...cladding sections plus two spare bolts Sheet metal bolts for the assembly of the upper cladding section including 1 spare bolt Sheet metal bolts for the console terminal frame including 1 spare bolt S...

Page 21: ...eat pump and domes tic hot water cylinder a Caution Risk of damage Regardless of the mode of transport the heat pump must never be tilted by more than 45 Otherwise it can cause mal functions in the co...

Page 22: ...the heat pump as the weight distribution is then the most fa vourable Fasten the heat pump with a restraining strap Use a ramp when pushing the barrow from the pallet e g a batten and a sturdy board 4...

Page 23: ...er to avoid injuries Lift the domestic hot water cylinder module and put it carefully on the floor You can now convey both modules separately to the in stallation site After the transport reassemble b...

Page 24: ...nnection draw ings in Fig 4 1 The installation must be performed by a specialist fit ter The applicable regulations must be observed during the installation h Note Air in the heating system leads to i...

Page 25: ...of scalding The blow off line on the expansion relief valve must be the size of the valve s outlet aperture and be installed in a frost free environment It must remain constantly open It must be fitte...

Page 26: ...DCF outside temperature sensor Fit the sensor in accordance with the enclosed installa tion instructions 4 15 Fitting the VR 90 remote control unit If you install several heating circuits you can con...

Page 27: ...can be discharged from the system Open the filling and discharge valve of the heating cir cuit 1 Turn the water tap on slowly and fill with water until the pressure gauge indicates a system pressure...

Page 28: ...64 58 62 59 60 29 57 61 67 65 Fig 5 3 Brine circuit Key to Fig 5 3 29 Brine pump 57 Stop valve 58 Bleed valve 59 Brine expansion tank 60 Expansion relief valve 61 Stop valve a Caution Danger of lack o...

Page 29: ...alves 62 and 64 Open stop valve 61 and connect a hose to it with the other end of the hose draining into the glycol mixture Start the filling pump 67 in order to fill the collector hose Allow the fill...

Page 30: ...on takes place after the assembly of the cladding sections and the start up of the heat pump see Chap 7 4 Possible residues of the brine fluid are preserved in a suitable vessel e g plastic canister f...

Page 31: ...g a Caution Risk of malfunction The lines for the outside temperature sensor and the room thermostat carry small weak currents Interference from the environment can have an effect on the sensor lines...

Page 32: ...pressor 10 Safety thermostat STL for the auxiliary heating 11 Contactor for auxiliary heating rod 12 Contactor for compressor Additionally there are two coiled cables hanging inside the control box no...

Page 33: ...heat pump is connected to the mains on a single tariff one consumer meter 1 The power company re serves the right to switch off the compressor and the auxiliary heating as required by means of a ripp...

Page 34: ...ers A permanent supply 2 for the secondary consumers auxiliary heating circulation pumps controller etc must be ensured via a meter The low tariff supply 1 for the compressor is effected via a second...

Page 35: ...rmanent supply 2 for the secondary consumers circulation pumps controller etc must be ensured via a meter The low tariff sup ply 1 for the compressor and the auxiliary heating is effected via a second...

Page 36: ...iliary heating L L L L N N N N L N PE L N B S S B 1 L L Fig 6 6 Simultaneous operation of the compressor and the auxiliary heating In the as delivered condition simultaneous operation of the compresso...

Page 37: ...nal 13 EVU EVU contact ripple control signal from power com pany open compressor operation permitted closed compressor operation blocked 14 1xZP Contact for non recurring request for the circulation p...

Page 38: ...rd sensor is so designed that it can be used as an immersion sensor e g as a cyl inder sensor in a cylinder sensor tube or as a flow sen sor in a hydraulic switch Using the enclosed cable tie you can...

Page 39: ...31 Fig 6 10 Hydraulic plan 6 Key to Fig 6 10 16 Outdoor sensor 18 VF 2 feed temperature sensor 31 Control valve with position indication 32 Cap valve 33 Air separator Dirt filter 42a Expansion relief...

Page 40: ...16 Outdoor sensor 18 VF 2 feed temperature sensor 31 Control valve with position indication 32 Cap valve 33 Strainer 42a Expansion relief valve 42b Expansion vessel heating circuit 42c Expansion vesse...

Page 41: ...the VR 90 remote control unit 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 make sure that the b...

Page 42: ...the mounting panel of the operating console using the self tapping screws 1 and 2 from the accessory bag For fixing see also the vrnetDIALOG manual Pass the power supply cable present within the heat...

Page 43: ...eBUS interface Boilers without eBUS interfaces are connected to the in ternal auxiliary heating contact ZH see Fig 6 7 via an isolating relay accessory Vaillant No 306249 N N Auf Zu L ZH LP UV 1 1 Fig...

Page 44: ...corresponding apertures of the lateral cladding until they engage Fig 6 22 Installing the anterior cladding Pass the line of the connecting plug for the console terminal Fig 6 22 item 3 and by using...

Page 45: ...g into the clip fastener on the casing Screw the console frame to the casing with both screws as shown in Fig 6 24 If you have fitted the vrnetDIALOG communications unit plug in the connecting plug an...

Page 46: ...if all the points noted there have been satisfied Before you actually start up the heat pump familiarise yourself with the controller interface described below 7 2 Operating the controller 7 2 1 Find...

Page 47: ...omponents for functional capability If the self test was not successful an error message ap pears on the controller display see Chap 10 Trouble shooting and diagnosis Switch on the circuit breaker so...

Page 48: ...stallation completed A9 Exit mode yes Adjustable values Fig 7 5 Menu A9 Ending the installation Only set Exit mode to YES if you are sure that everything has been set correctly Once you have confirmed...

Page 49: ...below 3 C Cylinder frost protection This function starts automatically when the actual tem perature of the cylinder falls below 10 C The cylinder is then heated to 15 C This function is also active in...

Page 50: ...er periods beyond the next switch off time to the start of the next heating period See Chap 8 9 Energy saving function This function allows you to set back the heating for an adjustable period of time...

Page 51: ...are system data to load device configu rations and change and save them online and to save in formation in the form of reports Using vrDIALOG 810 2 you can make all the settings for the heat pump as w...

Page 52: ...ues to the default settings 8 4 5 Controller structure The top level display is a graphics display It is the starting point for all the available displays This display reappears automatically if you d...

Page 53: ...ct day of the week 2 HK2 Time programme 5 Mo 1 00 00 24 00 3 Select day of the week 2 HK2 Time programme 5 Mo 1 00 00 24 00 3 Select day of the week 2 Domestic hot water Time programme 5 Mo 1 06 00 22...

Page 54: ...C4 Setpoint flow temp 41 C Current flow temp 29 C Status of pump OFF Status hydr mixer OPEN HK2 Information C4 Setpoint flow temp 41 C 30 C Flow Temp VF2 OFF Status of pump 183 min mins lag gain HK2...

Page 55: ...Select Tool A7 Venting prog Select OFF Ventilation Installation assistent Language selection A1 Language GB english Select language I5 Reset NO Code 1 0000 Code 2 FFFF Codes accepted Select NO Tool Co...

Page 56: ...output The heating output corresponds to approx the output of the heat source compressor output When the compressor or the electric auxiliary heating is switched on the arrow is shown filled Left and...

Page 57: ...ressure and heat source pressure are displayed IST flow temperature Current flow temperature in the unit Heating system pressure Heating circuit pressure sensor Pressure heat source Heat source pressu...

Page 58: ...etween the Heating and Energy Saving oper ating modes in accordance with an adjustable timer programme Eco The operation of the heating circuits alternates between the Heating and Off operating modes...

Page 59: ...hot water cylinder Min hot water temp 44 C HK2 5 Time programme Mon 1 00 00 24 00 2 3 Select weekday block You can set the heating times for each heating cir cuit in the HK2 timer program menu Up to t...

Page 60: ...program Period 1 01 01 2003 01 01 2003 Period 2 01 01 2003 01 01 2003 Room Temp set point 15 C Basic data 7 Date 21 04 08 Day of week Mo Time 09 35 Settable values In the Basic data menu you can set...

Page 61: ...t be able to make any more changes in the code level 1000 HK2 C2 Parameters Type direct circuit Heating curve 0 80 Max limit outs temp 21 C Comp starts at 120 min Select temperature Type Direct circui...

Page 62: ...for each heating circuit HK2 C5 Parameters Switch on room temp None Remote control Yes 23 C Select mode Only when using the VR 90 VR 80 remote control Switch on room temperature None Room temperature...

Page 63: ...600 min plus 120 min start at 720 min Out T aux htr on The auxiliary heating is only ena bled for post heating in heating mode below this temperature can be set in Menu A3 no CH no CH Cooling C8 Max...

Page 64: ...sor input T inlet compressor compressor input intake side Display of temperature sensor T2 diagnosis D2 refrigerant circuit overheat 4K Subcooling 10K Temp TEV inlet 10 C Superheating of the coolant c...

Page 65: ...ber shows the order in which the errors occurred The error code identifies the error You will find a listing in Chap 10 Turning the dial shows the next error Statistics I2 Compressor hours 7 hours Com...

Page 66: ...ic scheme 3 Heat pump type 5 Electric Wiring Diagram 1 Accept change Yes Select The hydraulic and electro plans must be set by the installer during initial commissioning The heat pump type has already...

Page 67: ...ly ena bled for post heating in the heating mode if the out side temperature is below this value intern 5 C Installation assistant A4 Geothermal settings freeze protect Temp 10 C Settable values VWS o...

Page 68: ...necessary Tool A8 Outside temperature 0 0 K DHW sensor SP 0 0 K T Flow Mix OffsetVF2 0 0 K Buffer sensor RF1 0 0 K Manual adjustment of the displayed temperatures Offset adjustment range Outside tempe...

Page 69: ...he function has elapsed reaching the time or by pressing the dial again Display shown Description We 16 02 08 9 35 Energy saving enabled Select end time Energy saving function With the saving function...

Page 70: ...After that you can select whether to reset only the timer programme or all values to the default settings Display shown Description We 21 04 08 9 35 Factory setting cancel NO YES Time programme NO YES...

Page 71: ...appear in the display HK2 HK2 Software version The status provides information about the operating state of the heat pump software Elec Tariff switch Status of power interruption due to activation of...

Page 72: ...ure Setpoint flow temperature Hysteresis 7K Compressor starts Comp starts h max allowable no of compressor starts per hour 3 5 3 Max CH return temp HK46 C Max CH return temp HK Sets the return tempera...

Page 73: ...valves reseat stisfstorily Anual check of pressure expansion vessel Turn off mains water supply and open nearest hot water tap to depressurise the secondary water sys tem Check the expansion vessel c...

Page 74: ...vely high output with a high flow temperature Reduce the heating curve Check the required heating output floor drying building shells and reduce if necessary 36 Low brine pressure Pressure drop in the...

Page 75: ...r heating system Brief heating operation occurs after every DHW charge if the outside tempera ture falls below the outside temp switch off limit The control system checks if heating operation is re qu...

Page 76: ...r not properly plugged into the PCB Check the plug contact on the PCB and the cable harness check the sensor for correct position and func tion resistance measurement using VR 11 characteristics see A...

Page 77: ...or incor rectly dimensioned Clean dirt strainers Mixer behind buffer cylinder is defec tive Test mixer replace if necessary Max HK temp set too low Check Max HK temp setting 81 Coolant pressure too h...

Page 78: ...n blocked by the power company Check whether the auxiliary heating is on a low rate tariff and a power company block age is in effect The safety thermostat STB on the auxiliary heating has tripped Rel...

Page 79: ...ant presents no danger in normal use and under normal conditions With improper use however it can cause injury and damage a Caution Environmental hazard Before disposal of the heat pump the coolant mu...

Page 80: ...hout start up current limiter with start up current limiter A A 58 45 76 45 97 45 Rated output min for B 5W35 max for B20W60 Auxiliary heating kW kW kW 1 4 2 8 2 4 1 9 4 0 2 4 2 4 4 9 2 4 EN 60529 lev...

Page 81: ...ssure relief valve setting ba r 7 7 7 C 95 95 95 Heat up time min 113 98 86 Recovery time min 88 74 60 Heat pump performance data B0W35 dT5 Heating output Power consumption Performance figure COP B5W5...

Page 82: ...out line incorporated Were the pipes insulated with thermal insulation Was the heating circuit flushed filled and bled Was the heating circuit checked for leaks Were the pipes thermally insulated agai...

Page 83: ...ctrical circuit diagrams Was the protective earth properly connected Do all conductors have the required cross sections Were the required automatic safety devices used and labelled in accordance with...

Page 84: ...ician Please fill in the following tables to facilitate any servicing work that may arise Installation and commissioning were carried out by Heat source construction Date Company Name Telephone Electr...

Page 85: ...ed heat pump Details regarding the domestic hot water cylinder Domestic hot water cylinder type Domestic hot water cylinder capacity Electric auxiliary heating Yes No Details regarding room thermostat...

Page 86: ...essure of the heating circuit in a cold state Does the heating system get warm Does the water in the DHW cylinder get warm Controller settings Were the basic settings made on the controller Was the an...

Page 87: ...183 105 158 110 137 115 120 120 104 125 92 130 81 135 71 140 63 145 56 150 50 155 44 Table 1 Appendix VR 10 sensor characteristics VR 11 internal temperature sensors Temperature C Resistance ohms 40...

Page 88: ...VWS 0020051614_00 88 VRC DCF outside temperature sensor Temperature C Resistance ohms 25 2167 20 2067 15 1976 10 1862 5 1745 0 1619 5 1494 10 1387 15 1246 20 1128 25 1020 30 920 35 831 40 740 Table 3...

Page 89: ...ating feed 2 Heating circuit pressure sensor 3 Electric auxiliary heating 4 High pressure sensor 5 High pressure switch 6 Compressor 7 Low pressure sensor 8 Low pressure switch 9 Heat source circuit p...

Page 90: ...ow blue grey blue grey blue grey blue blue grey black black orange orange white white white white yellow green yellow green A Main power inlet Electric auxiliary heating Starting capacitor Electrical...

Page 91: ......

Page 92: ...0020051614_00 GB 102008...

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