Vaillant geoTHERM Installation And Maintenance Instructions Manual Download Page 21

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Electrical installation 6

0020250180_00 geoTHERM Installation and maintenance instructions

Main PCB

F2 T 4A/250 V fuse

S20

Contact thermostat connection (24 V=)

S21

—

230 V~ mains connection (main PCB)

X11

—

X12

Mains supply edge connector for the 2 in 7 addi-
tional module

X13

Environment circuit pump

X14

—

X15

—

X16

Building circuit pump

X20 - X25

Internal electrical connections

X30

Diagnostics interface

X40

Control connection for 2 in 7 additional module

X41

DCF/AF edge connector (outdoor temperature
DCF signal)

X51

AI display edge connector

X100

eBUS (e.g. VRC 700 control)

X700

Compressor safety relay

Summary of Contents for geoTHERM

Page 1: ...ion and maintenance instructions geoTHERM VWS 36 4 1 230V BEde DE Publisher manufacturer Vaillant GmbH Berghauser Str 40 D 42859 Remscheid Tel 49 21 91 18 0 Fax 49 21 91 18 2810 info vaillant de www vaillant de ...

Page 2: ... 23 7 2 Starting up the heat pump 23 7 3 Running through the installation assistant 23 7 4 Calling up Live Monitor checking status codes 24 7 5 Calling up the installer level 24 7 6 Heating mode flow temperature control 24 7 7 Calling up statistics 24 7 8 Checking that the product works correctly 24 8 Adapting the unit to the heating installation 24 8 1 Adapting the unit to the heating installatio...

Page 3: ...ation and maintenance instructions 3 J 5 Basic hydraulic diagram 0020185684 47 J 6 Basic hydraulic diagram 0020180635 48 J 7 Basic hydraulic diagram 0020235626 49 K Wiring diagrams 50 K 1 50 K 2 51 K 3 52 K 4 53 K 5 54 K 6 55 K 7 56 Index 57 ...

Page 4: ...all instructions that are included with the product Proceed in accordance with current tech nology Observe all applicable directives stand ards laws and other regulations 1 2 3 Risk of death due to lack of safety devices The schematic drawings included in this doc ument do not show all safety devices re quired for correct installation Install the necessary safety devices in the system Observe the ...

Page 5: ... touched If refrigerant escapes do not touch any components of the product Do not inhale any steam or gases that escape from the refrigerant circuit as a result of leaks Avoid skin or eye contact with the refriger ant In the event of skin or eye contact with the refrigerant seek medical advice 1 2 10 Risk of material damage caused by condensate inside the house In heating mode the lines between th...

Page 6: ...tallation surface has sufficient load bearing capacity to bear the operating weight of the product 1 2 17 Risk of material damage caused by using an unsuitable tool Use the correct tool to tighten or loosen threaded connections 1 2 18 Product fault as a result of incorrect system pressure To avoid operating the system with too little water and thus prevent resulting damage note the following Check...

Page 7: ...cord ance with the product and system approval compliance with all inspection and main tenance conditions listed in the instruc tions Intended use also covers installation in ac cordance with the IP class Any other use that is not specified in these instructions or use beyond that specified in this document shall be considered improper use Any direct commercial or industrial use is also deemed to ...

Page 8: ...fluid pressure 0 05 MPa 0 50 bar Brine fluid operating pressure 0 07 MPa 0 70 bar 3 1 4 Freeze protection This function prevents the evaporator from freezing when the heat source temperature drops below a certain value The outlet temperature of the heat source is constantly measured If the outlet temperature of the heat source falls below a certain value the compressor temporarily switches off and...

Page 9: ... heat pump to the heat source cold brine 6 From the heat source to the heat pump hot brine 7 Data plate 4 5 7 6 8 9 1 10 11 13 14 16 18 3 2 12 15 17 19 1 Condenser 2 Compressor outlet temperature sensor 3 Rotary piston com pressor 4 High pressure pressure switch 5 High pressure sensor 6 Relay PCB 7 Heating pump 8 Flow rate sensor 9 Switch box 10 Heating circuit expan sion relief valve 11 Brine cir...

Page 10: ...it identification number Measuring voltage of the com pressor pumps and controls P max Maximum rated power I max Maximum in rush current Refrigerant type fill quantity permissible rated overpressure COP B0 W35 Output figure coefficient of per formance at a brine temperature of 0 C and heating flow temper ature of 35 C COP B0 W55 Coefficient of performance at a brine temperature of 0 C and heating ...

Page 11: ...hat it can bear the weight of the heat pump Weight without packaging 59 kg In the case of walls with a mass per unit area of less than 200 kg m 2 lightweight construction walls and in particu lar dry lined walls use a mounting frame for the prewall installation of the heat pump in order to prevent vibrations and resulting noise emissions Secure the mounting frame to the wall only at floor and ceil...

Page 12: ...4 Set up 12 Installation and maintenance instructions geoTHERM 0020250180_00 4 5 Dimensions 720 426 440 113 77 100 100 55 198 40 ...

Page 13: ...template vertically over the in stallation site 2 Attach the template to the wall using tacks for example 3 Mark the drill holes for the unit mounting bracket on the wall 4 8 Wall mounting the product 1 3 2 Danger Risk of accidents as a result of insuffi cient load bearing capacity of the fixing means If the fixing elements or wall do not have suf ficient load bearing capacity the product may come...

Page 14: ...esidue 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 faults Flush the heating installation thoroughly before connecting the heat pump in order to remove any possible residue Caution Risk of damage caused by leaks Mechanical stress on connection cables may cause leaks and damage to th...

Page 15: ...ensation Radiator heating is not suitable for cooling mode with this product Ensure that the radiator heating is not used for the cooling mode Warning Risk of scalding caused by steam or hot water If there is overpressure then steam and or hot water is guided out via the drain hose of the expansion relief valve Have the hose end in such a way that nobody is at risk when steam and or hot water is d...

Page 16: ...ent requirements the following applies You must treat the heating water in the following cases If the entire filling and supplementary water quantity dur ing the operating life of the system exceeds three times the nominal volume of the heating installation or If the guideline values listed in the following table are not met or If the pH value of the heating water is less than 8 2 or more than 10 ...

Page 17: ... screws 71 Expansion vessel A From the heat source to the heat pump hot brine B From the heat pump to the heat source cold brine 1 Install a dirt filter 33 in the pressure line 2 Connect the filling pump s pressure line to the isolation valve 61 3 Close the isolation valve 63 4 Open the isolation valve 61 5 Connect a hose which leads to the brine fluid to the isolation valve 62 6 Open the isolatio...

Page 18: ...mage caused by short circuit A maximum of 10 mm of the insulation may be removed from the ends of lines that carry mains voltage 230 V for the connection to the 230 V terminal If more insulation is removed there is a risk of short circuits on the PCB if the cable has not been correctly secured to the 230 V terminal Strip the cable ends to a maximum of 10 mm Take care to wire up correctly 2 When el...

Page 19: ...n 6 0020250180_00 geoTHERM Installation and maintenance instructions 19 3 Hinge up the cover 4 Note the components and accessories in the relevant system instructions Page 50 that you have to con nect in the electronics box ...

Page 20: ...SSM2 PWM2 PWM1 GND SSM 1 SSM2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 11 12 13 14 15 16 17 18 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 1 2 9 10 3 4 11 12 5 6 13 14 7 8 15 16 1 2 5 6 3 4 7 8 Relay PCB Main PCB X700 L L 230V C X70 R N 230V X1C L N 230V X19 L L 230V X17 L N 230V X1A L N 230V X1B L N 230V L X18 L 230V S R C Compressor Operating capacitor M B A N O S 52 230V L N X12...

Page 21: ... X11 X12 Mains supply edge connector for the 2 in 7 addi tional module X13 Environment circuit pump X14 X15 X16 Building circuit pump X20 X25 Internal electrical connections X30 Diagnostics interface X40 Control connection for 2 in 7 additional module X41 DCF AF edge connector outdoor temperature sensor DCF signal X51 AI display edge connector X100 eBUS e g VRC 700 control X700 Compressor safety r...

Page 22: ...its 9 Use a screwdriver to connect the ProE plug to the con trol s connection cables Note Ensure that the conductors are securely fastened to the plug terminals of the ProE plug 10 Connect the controls and accessories in accordance with the wiring diagrams in the appendix 11 If you install the control in the product depending on the basic system diagram see appendix remove the panel from the produ...

Page 23: ...ibed in the operating instructions for the heat pump 7 1 1 Overview of the installer level menu structure Installer level overview Page 31 7 2 Starting up the heat pump Plug the mains plug into an earthed plug socket The display shows the basic display 7 3 Running through the installation assistant The installation assistant is launched when the heat pump is switched on for the first time You must...

Page 24: ...m start to start 20 minutes 7 7 Calling up statistics Menu Installer level Test menu Statistics You can use this function to call up the statistics for the heat pump 7 8 Checking that the product works correctly 1 Start up the product in accordance with the relevant operating instructions 2 Navigate to Menu Installer level Test pro grammes Check programmes 3 Check the heating mode using P 01 4 Che...

Page 25: ...building circuit If the differential pressure in the building circuit is not permit ted to exceed a maximum value this limit can be set in the Configuration menu within the range of 0 02 to 0 07 MPa 0 2 to 0 7 bar Menu Installer level Configuration Max remaining feed head 8 3 2 Setting the environment circuit pump If the heat source temperature spread lies below 2 K due to low pressure losses larg...

Page 26: ...ectrical installation or maintenance work Check that there is no voltage Secure the power supply against being switched back on 9 3 Preparing for inspection and maintenance 9 3 1 Procuring spare parts The original components of the product were also certified by the manufacturer as part of the declaration of conformity If you use other non certified or unauthorised parts during maintenance or repa...

Page 27: ...ections have been installed Before starting up the unit fit all of the casing sections for the heat pump 1 Start up the heat pump system 2 Check that the heat pump system is working without any problems 10 Troubleshooting 10 1 Troubleshooting 10 1 1 Checking the status codes 10 1 1 1 Calling the Live Monitor Menu Live Monitor You can call up status codes in the heat pump s display and these codes ...

Page 28: ...ke sure that you observe the following instructions for your own safety and to avoid material damage to the heat pump 2 Disconnect the heat pump from the power grid 3 Remove the front casing as shown in the illustration Page 14 4 Remove the side casing Page 14 5 Close the service valves in the heating flow and in the heating return 6 Drain the heat pump if you want to replace water carry ing compo...

Page 29: ...ntly decommissioning 12 2 1 Recycling and disposal Caution Environmental hazard resulting from im proper disposal Improper disposal of refrigerant can be harm ful to the environment Ensure that refrigerant and brine fluid is only disposed of by qualified competent persons Product Do not dispose of the product or any accessories in house hold waste Ensure that your old unit and any accessories are ...

Page 30: ... only be disposed of by a qualified com petent person 13 Customer service Applicability Belgium N V Vaillant S A Golden Hopestraat 15 B 1620 Drogenbos Belgien Belgique België Kundendienst Service après vente Klantendienst 2 3349352 Applicability Germany Auftragsannahme Vaillant Kundendienst 021 91 5767901 ...

Page 31: ...mperature sensor of the electronic expansion valve with HEX heat source S13 Heating return temperature sensor S14 Heating flow temperature sensor S15 Heating circuit flow rate sensor S16 Temperature sensor of the electronic expansion valve with HEX heating S17 Heating circuit pressure sensor S18 Heat source pressure sensor S22 Low pressure sensor B Installer level overview Setting level Values Uni...

Page 32: ... 79 Flow temperature 40 0 150 0 0 1 T 81 Return temperature 40 0 150 0 0 1 T 82 Building circuit Pressure 0 4 5 bar 0 1 T 83 Building circuit Flow rate 0 1400 l h 1 T 97 Environment circuit Inlet temperature 40 0 150 0 0 1 T 98 Environment circuit Outlet temperature 40 0 150 0 0 1 T 121 Compressor outlet temper ature 25 0 150 0 0 1 T 122 Compressor inlet temper ature 40 0 150 0 0 1 T 125 EEV envir...

Page 33: ...uto Reset anti cycl time 0 120 min 1 0 Boiler supp set p 1 300 1300 l h 20 1000 Enviro pump set p 29 100 1 75 Freeze protection 14 5 1 7 Enable emergency mode On Off Off Software version Current value for the main PCB HMU xxxx and the display AI xxxx Installer level Resets Switch on delay Yes No No Statistics Yes No No Factory settings Yes No No Installer level Start inst assistant Language 01 Deu...

Page 34: ...onment circuit due to leaks or air pockets Environment circuit pressure sensor defective Check the environment circuit for leaks top up with medium brine water and purge Check the plug contact on the PCB and on the cable harness check that the pressure sensor is working correctly and if required replace the pressure sensor D Status codes Code Meaning Heat pump system S 34 Heating mode Frost protec...

Page 35: ...e too low E Fault codes Code Meaning Cause Remedy F 042 Sensor fault Coding resistor 1 Sensor not connected or sensor in put has short circuited Check and if required replace the sensor see sensor charac teristic values in the appendix Replace the cable harness F 042 Sensor fault Coding resistor 2 F 042 Sensor fault Coding resistor 3 F 070 Invalid Device Specific Number Replacing the control PCB a...

Page 36: ... 702 Temp sensor fault Environment cir out F 703 Sensor fault Low pressure F 704 Sensor fault Building cir pressure F 705 Sensor fault Enviro cir pressure F 706 Sensor fault Building flow rate F 710 Environment circuit Outlet temperature too low Environment circuit pump defective Temperature sensor for environment circuit outlet defective Volume flow too low in the environ ment circuit Air in the ...

Page 37: ... room controls in an underfloor heating system Check the existing dirt filter for penetrability Refrigerant flow rate too low e g electronic expansion valve defective filter blocked F 732 Compressor outlet temperature too high The compressor outlet temperature is above 115 C Application limits exceeded EEV does not work or does not open correctly Refrigerant volume too low Check the low pressure s...

Page 38: ... temperature too low Return temperature in the building circuit too low for the compressor to start Heating Return temperature 5 C Cooling Return temperature 7 C Check the sensors Checking the cooling mixer F 742 Environment cir inlet temperature too high Inlet temperature in the environment circuit too high for the compressor to start Heating Environment circuit inlet temp 25 C Check the environm...

Page 39: ... 75 400 80 339 85 289 90 247 95 212 100 183 105 158 110 137 115 120 120 104 125 92 130 81 135 71 140 63 145 56 150 50 155 44 G Sensor characteristics for the internal temperature sensors Temperature C Resistance ohms 40 332094 35 239900 30 175200 25 129287 20 96358 15 72500 10 55046 5 42157 0 32554 5 25339 10 19872 15 15698 20 12488 25 10000 30 8059 1 35 6534 7 40 5329 9 45 4371 7 ...

Page 40: ...480 9 80 1256 4 85 1070 3 90 915 5 95 786 4 100 678 1 105 586 8 110 509 5 115 443 9 120 388 1 125 340 3 130 299 3 135 264 0 140 233 6 145 207 2 150 184 3 H Sensor characteristic value for the VRC DCF outdoor temperature sensor Temperature C Resistance ohms 25 2167 20 2067 15 1976 10 1862 5 1745 0 1619 5 1494 10 1387 15 1246 20 1128 25 1020 30 920 35 831 40 740 ...

Page 41: ...nner sound power level LWi in accordance with EN 12102 heating mode at B0 W35 41 1 dB A Inner sound power level LWi in accordance with EN 12102 heating mode at B0 W45 43 6 dB A Inner sound power level LWi in accordance with EN 12102 heating mode at B0 W55 44 7 dB A Permissible ambient temperature 7 40 Installation room at a refrigerant volume of 0 70 kg 1 6 m Installation site Interior dry Technic...

Page 42: ...these are approved in the installation instructions Soften the heating water at water hardnesses from 3 0 mmol l 16 8 dH according to Directive VDI 2035 sheet 1 Pump type High efficiency pump Materials Cu CuZn alloy Stainless steel EPDM Brass Fe Technical data Refrigeration circuit VWS 36 4 1 230V Refrigerant type R410A Refrigerant content of the refrigerant circuit in the heat pump 0 7 kg Global ...

Page 43: ...ing circuit ΔT 5 K or ΔT 8 K and the brine circuit ΔT 3 K as for the nominal heat output test under standard nominal conditions Operation of the pump outside the application limits results in the heat pump being switched off by the internal control and safety devices Application limits for the heat pump Heating B 10 W20 B 10 W55 B 3 W60 B20 W60 B20 W20 To be able to achieve the B 10 W20 and B 10 W...

Page 44: ...erature sensor J 2 Basic hydraulic diagram 0020235577 1c Heating domestic hot water back up boiler 2 Heat pump 3e Circulation pump 5 Monovalent domestic hot water cylinder 8b Potable water expansion relief valve 8c Safety group drinking water connection 8e Heating diaphragm expansion vessel 8f Diaphragm expansion vessel potable water 9a Single room temperature control valve thermo static motorised...

Page 45: ...ater expansion relief valve 8c Safety group drinking water connection 8e Heating diaphragm expansion vessel 8f Diaphragm expansion vessel potable water 9d Bypass valve 9e Domestic hot water generation prioritising diverter valve 9h Filling draining cock 9j Tamper proof capped valve 10c Non return valve 12 System control 12b Remote heat pump expansion module 12m Outdoor temperature sensor DHW Cylin...

Page 46: ...valve 8c Safety group drinking water connection 8e Heating diaphragm expansion vessel 8f Diaphragm expansion vessel potable water 9d Bypass valve 9e Domestic hot water generation prioritising diverter valve 9h Filling draining cock 9j Tamper proof capped valve 10c Non return valve 12 System control 12b Remote heat pump expansion module 12m Outdoor temperature sensor DHW Cylinder temperature sensor...

Page 47: ...or Either the heat pump or the gas fired boiler are active in heating mode It is not possible to operate the units in parallel The domestic hot water is only generated by the gas fired boiler Connect the underfloor heating circuits directly to the heat pump Connect two limit thermostats to guarantee the underfloor heating protection function for the heat pump and the gas fired boiler Ensure that a...

Page 48: ...nit 12d Expansion wiring centre 12g eBUS bus coupler 12k Limit thermostat 12m Outdoor temperature sensor Using a 2 zone set and the appropriate information in the VRC 700 system control also makes the parallel heating mode possible for parallel operation of different temperature levels in the heating system with the different heat generators For the parallel heating mode the 2 zone kit Vaillant ac...

Page 49: ...8e Heating diaphragm expansion vessel 8f Diaphragm expansion vessel potable water 9a Single room temperature control valve thermo static motorised 9h Filling draining cock 9j Tamper proof capped valve 9k 3 port mixing valve 10c Non return valve 10e Line strainer with magnetite separator 12 System control 12a Remote control unit 12d Expansion wiring centre 12g eBUS bus coupler 12k Limit thermostat ...

Page 50: ... maintenance instructions geoTHERM 0020250180_00 K Wiring diagrams K 1 Wiring diagram 0020232108 2 Heat pump 3e Circulation pump 5c Combi cylinder tank in tank 12 System control 12k Limit thermostat 12m Outdoor temperature sensor ...

Page 51: ...on and maintenance instructions 51 K 2 Wiring diagram 0020235577 1c Heating domestic hot water back up boiler 2 Heat pump 3e Circulation pump 12 System control 12k Limit thermostat 12m Outdoor temperature sensor DHW Cylinder temperature sensor ...

Page 52: ...Wiring diagram 0020235580 1c Heating domestic hot water back up boiler 2 Heat pump 3e Circulation pump 9e Domestic hot water generation prioritising diverter valve 12 System control 12b Remote heat pump expansion module 12m Outdoor temperature sensor DHW Cylinder temperature sensor ...

Page 53: ...ce instructions 53 K 4 Wiring diagram 0020249867 2 Heat pump 3e Circulation pump 9e Domestic hot water generation prioritising diverter valve 12 System control 12b Remote heat pump expansion module 12m Outdoor temperature sensor DHW Cylinder temperature sensor ...

Page 54: ...ce instructions geoTHERM 0020250180_00 K 5 Wiring diagram 0020185684 1 Heat generator 2 Heat pump 3e Circulation pump 12 System control 12g eBUS bus coupler 12k Limit thermostat 12m Outdoor temperature sensor DHW Cylinder temperature sensor ...

Page 55: ... Heat generator 2 Heat pump 3e Circulation pump 5 Monovalent domestic hot water cylinder 7i 2 zone module 9b Zone valve 9k 3 port mixing valve 12 System control 12d Expansion wiring centre 12g eBUS bus coupler 12k Limit thermostat 12m Outdoor temperature sensor FS Flow temperature sensor swimming pool sensor ...

Page 56: ...generator 2 Heat pump 3e Circulation pump 3f Heating pump 9k 3 port mixing valve 12 System control 12a Remote control unit 12d Expansion wiring centre 12g eBUS bus coupler 12m Outdoor temperature sensor DHW Cylinder temperature sensor FS Flow temperature sensor swimming pool sensor SysFlow System temperature sensor ...

Page 57: ...cting against frost 29 Heating installation Filling 17 I Installation assistant Restarting 27 Installation assistant ending 23 Installer level calling up 24 Instructions Validity 8 Intended use 6 L Live Monitor Calling up 24 27 M Maintenance message checking 26 P Packaging 11 Product Cleaning 27 Q Qualification 4 Querying Fault memory 27 R Recycling 29 Regulations 7 S Safety device 4 Schematic dra...

Page 58: ......

Page 59: ......

Page 60: ...aillant de www vaillant de N V Vaillant S A Golden Hopestraat 15 B 1620 Drogenbos Tel 2 3349300 Fax 2 3349319 Kundendienst Service après vente Klantendienst 2 3349352 info vaillant be www vaillant be These instructions or parts thereof are protected by copyright and may be reproduced or distributed only with the manufacturer s written consent We reserve the right to make technical changes 00202501...

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