Vaillant VR 68 Operating And Installation Manual Download

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Manufacturer

Supplier

Supplement to the operating and installation manual no. 0020054784
for the VR 68 solar module

The VR 68/2 solar module can be used together with the VRC 430/VRC 430f and VRC 470 compensator types.

Please follow the installation, start-up and operating instructions below.

VRC 430/VRC 430f

Please follow the operating and installation manual (no. 0020054784) supplied with the solar module.

VRC 470

During installation, follow the operating and installation manual (no. 0020054784) supplied with the solar module.

During start-up and operation, follow the installation manual (no. 0020116690) and operating manual
(no. 0020116689) for the VRC 470.

Summary of Contents for VR 68

Page 1: ...mpensator types Please follow the installation start up and operating instructions below VRC 430 VRC 430f Please follow the operating and installation manual no 0020054784 supplied with the solar module VRC 470 During installation follow the operating and installation manual no 0020054784 supplied with the solar module During start up and operation follow the installation manual no 0020116690 and ...

Page 2: ...For the operator for the heating engineer Operating and Installation Manual Solar module VR 68 Solar module for VRC 430 VRC 430f GB ...

Page 3: ...am 2 9 4 3 Hydraulic diagram 3 10 4 4 Hydraulic diagram 4 12 5 Assembly 14 5 1 Scope of delivery 14 5 2 Mounting the VR 68 solar module 14 5 3 Assembling VR 10 standard sensor 15 5 4 Mounting the VR 11 collector sensor 15 6 Electrical installation 16 6 1 Connecting the VR 68 solar module 16 7 Start up 18 7 1 Installation assistant 18 7 2 VRC 430 VRC 430f Operation level for the expert technician 1...

Page 4: ...e documents For the heating engineer Please pass on this operating and installation manual to the owner of the system For the user Store the documents carefully so that the manual is close at hand if required 1 2 Symbols used Observe the safety information in this manual when installing and using the unit e Danger Danger of death by electric shock e Danger Immediate risk of serious injury or death...

Page 5: ...VRC 430 or VRC 430f controller system to create a secondary heating circuit and allows the heating system to be configured in a number of different ways a VR 81 remote control for separate room temperature control of a secondary heating circuit a solar collector panel that absorbs solar radiation a VR 68 solar module that integrates a solar system into the VRC 430 VRC 430f control concept 2 2 Iden...

Page 6: ... are considerably higher than 60 C not only due to the solar heating but also the legionella protection function if it is active Make absolutely sure that your expert technician installs a mixer valve with cold water supply see hydraulic diagram Have the mixer valve adjusted by your expert technician 3 2 Regulations Standard wires must be used for wiring 230V lines must be sheathed cables e g NYM ...

Page 7: ...nt solar hot water cylinder using preference switching valve VUV circulation pump for hot water controlled by VR 40 a legionella protection pump 3 way changeover valve for heating a swimming pool using solar energy Hydraulic diagram 4 a boiler floor mounted unit an uncontrolled heating circuit a solar circuit a bivalent solar hot water cylinder charging pump for reheating bivalent solar hot water ...

Page 8: ...e TD 2 Sensor for differential control 2 VR 10 see note below VR 40 Additional module integrated in heating equipment ZP Circulation pump for hot water Table 4 2 Designations used in hydraulic diagrams h Note Sensor TD 2 is only used to realise an optional additional differential temperature control TD 1 TD 2 in conjunction with sensor TD 1 and multifunction relay output MA Observe that the specif...

Page 9: ...uncontrolled heating circuit a solar circuit a bivalent solar hot water cylinder reheating of bivalent solar hot water cylinder using preference switching valve VUV circulation pump for hot water controlled by VR 40 a legionella protection pump VR 68 VRC 430 AF VRC 693 VRC 9535 SP 1 VR 10 230 V ZP VR 40 SP 2 VR 10 Ertrag VR 10 KOL 1 VR 11 KOL 1 P LEG P Fig 4 1 Hydraulic diagram 1 ...

Page 10: ...r hot water cylinder charging pump for reheating bivalent solar hot water cylinder controlled via boiler circulation pump for hot water controlled by VR 40 a legionella protection pump VR 68 VRC 430 SP 1 VR 10 ZP SP 2 VR 10 Ertrag VR 10 KOL 1 VR 11 KOL 1 P LEG P 230 V LP HK P AF VRC 693 VRC 9535 VR 40 Fig 4 2 Hydraulic diagram 2 Incorporation of the VR 68 into the solar heating system 4 ...

Page 11: ...ching valve VUV circulation pump for hot water controlled by VR 40 a legionella protection pump 3 way changeover valve for heating a swimming pool using solar energy h Note Observe that the specific configuration which is necessary for hydraulic diagram 3 can be carried out with the aid of the installation assistant also see Chapter 7 1 The 2nd cylinder option must be selected under MF relay on di...

Page 12: ...9535 230 V ZP VR 40 SP 2 VR 10 Ertrag VR 10 KOL 1 VR 11 KOL 1 P TD 1 VR 10 230 V MA 2 Fig 4 3 Hydraulic diagram 3 Key 1 Direction of flow if 3 way changeover valve is de energised 2 Solenoid valve activates swimming pool pump if 3 way changeover valve is energised Incorporation of the VR 68 into the solar heating system 4 ...

Page 13: ...trolled via boiler circulation pump for hot water controlled by VR 40 a legionella protection pump 3 way changeover valve for heating a swimming pool using solar energy h Note Observe that the specific configuration which is necessary for hydraulic diagram 4 can be carried out with the aid of the installation assistant also see Chapter 7 1 The 2nd cylinder option must be selected under MF relay on...

Page 14: ...ystem 4 1 SP 1 VR 10 LEG P VR 68 VRC 430 AF VRC 693 VRC 9535 230 V ZP SP 2 VR 10 Ertrag VR 10 KOL 1 VR 11 KOL P TD 1 VR 10 230 V MA 2 LP HK P VR 40 Fig 4 4 Hydraulic diagram 4 Key 1 Direction of flow if 3 way changeover valve is de energised 2 Solenoid valve activates swimming pool pump if 3 way changeover valve is energised ...

Page 15: ...ors may be required Only the standard sensor VR 10 from the Vaillant accessories programme should be used The heating control using Vaillant components is matched to the sensor characteristic curve of the VR 10 Temp in C R in kOhm Temp in C R in kOhm 10 5 363 55 0 806 15 4 283 60 0 671 20 3 372 65 0 562 25 2 700 70 0 473 30 2 176 75 0 399 35 1 764 80 0 339 40 1 439 85 0 288 45 1 180 90 0 247 50 0 ...

Page 16: ...it up Screw on the casing cover as shown in Fig 5 1 5 3 Assembling VR 10 standard sensor The VR 10 standard sensor is designed so that it can be used as a cylinder sensor yield sensor or immersion sensor in an immersion sleeve e g in a swimming pool The VR 10 can be used as a yield sensor by fastening it to the collector return using the enclosed tensioning band We recommend that the pipe with the...

Page 17: ...ly at the VR 68 solar module via the mains switch The LED green on the PCB of the VR 68 solar module must not light up If the casing of the VR 68 solar module is closed open it as described in Chapter 5 2 6 1 Connecting the VR 68 solar module The mains infeed up to the VR 68 solar module is to be provided on the customer side The eBUS connection to the VR 68 solar module can be established by taki...

Page 18: ... Legionella protection pump 5 Connection eBUS connection 6 Collector sensor 1 7 Cylinder sensor 1 8 Cylinder sensor 2 9 Sensor for yield measurement 10 Sensor TD 1 for swimming pool or additional differential control 11 Sensor TD 2 for additional differential control h Note If the VR 68 solar module is integrated into a system with a VRC 430 or VRC 430f controller the multifunction relay is config...

Page 19: ...for tube collectors Solar pump kick ON The solar pump kick or tube collector function optimises recording of the tube collector temperature as well as charging or changeover where two cylinders are used This function should only be activated where tube collectors are used To protect the solar circuit from overheating you can use the solar circuit protection function to specify the temperature of t...

Page 20: ...ating system The operation level for the expert technician contains display screens A1 to A6 in the installation assistant and also display screens C1 to C26 Depending on the configuration of the solar heating system display screens that are not required are hidden The display screens C1 to C26 in the controller VRT430 or VRC 430f in the same sequence as shown in the following Table 7 2 This Table...

Page 21: ...or temp 25 C 1 Cylinder sensor 2 A Actual temperature of hot water at bottom of cylinder C 1 Yield sensor A Temperature of solar fluid at yield sensor collector return C 1 Status of solar pump 1 A On Off C6 Solar circuit information The value of sensor TD2 is only displayed if the differential control option under multifunction relay MA in screen A4 has been selected Sensor TD1 A Actual temperatur...

Page 22: ...1 C13 Parameters Solar cyl 2 Cylinder 2 must be selected at multifunction relay in A4 If a swimming pool is used as Cylinder 2 the default values must be adapted Maximum temperature Cylinder 2 C 20 90 1 65 Activation difference Cylinder 2 R 2 25 1 7 Deactivation difference Cylinder 2 R 1 20 1 3 Master cylinder has priority over cylinder being supplied Cylinder 1 2 1 C14 Parameters Diff control The...

Page 23: ...ction Hr 0 12 1 4 Max pump blocking time If the feed target temperature is achieved for an extended period the heating is switched off for the prescribed pump blocking time dependent upon the outside temperature Min Off 5 60 1 15 C22 Total system parameters Max advanced heating time Before the start of the first time window Min 0 300 10 0 Max heating switch off time Before the end of a time window...

Page 24: ...d the time window for hot water If the temperature in the upper section of the solar hot water cylinder falls to 5 C below the hot water target value the boiler is switched on and the drinking water in the cylinder is heated up until the desired hot water target value is reached the boiler that provides energy for reheating is then switched off Reheating by the boiler only takes place inside the p...

Page 25: ...high solar yield H Danger Risk of scalding by hot water When the target temperature is above 60 C there is a risk of scalding at the hot water taps Young children and elderly persons are particularly at risk even at lower temperatures Select the target temperature so that nobody is in danger 9 Technical data Unit VR 68 Operating voltage Power consumption Contact load of the output relays max Maxim...

Page 26: ...r and the circulation system are heated The function is deactivated after 2 hours at the most even if a temperature of more than 60 C was not achieved Maximum temperature of solar storage tank In order to obtain the maximum yield from heating the cylinder with solar energy while at the same time providing the option of protection from scalding and calcification you can set a maximum limit for the ...

Page 27: ...or the heating In the case of hot water generation the hot water target temperature applies for all time windows Screen 10 Hot water parameters In the case of the circulation pump the time windows determine the operating times In automatic mode the system is controlled is in accordance with the specified values in the time windows Circulation pump Depending on the length of the pipe there may be a...

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Page 29: ...0020054784_00 GB 112007 ...

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