Vaillant VRC 700/2, Installation Instructions Manual

Page 1: ...n Installation instructions VRC 700 2 VRC 700 2 GB IE Installation instructions Publisher manufacturer Vaillant GmbH Berghauser Str 40 D 42859 Remscheid Tel 49 21 91 18 0 Fax 49 21 91 18 28 10 info vaillant de www vaillant de ...

Page 2: ...dditional module 10 8 5 Heat exchanger 1 11 8 6 HEATING 1 11 8 7 ZONE1 14 8 8 DHW circuit 14 8 9 Buffer cylinder 16 8 10 Solar circuit 16 8 11 Solar cylinder 1 17 8 12 2nd temperature difference control 17 8 13 Ventilation 18 8 14 Selecting the expansion module for sensor actuator test 18 8 15 Activating the screed drying function 18 8 16 Changing the code for Installer level 19 9 Fault messages a...

Page 3: ...upply lines e g NYM 3 x 1 5 Minimum cross section Supply line for mains voltage pump or mixer mains cable 1 5 mm eBUS line extra low voltage 0 75 mm Sensor line extra low voltage 0 75 mm Maximum line length Sensor lines 50 m Bus lines 125 m 1 3 Regulations directives laws standards Observe the national regulations stand ards guidelines and laws 1 4 Intended use In the event of inappropriate or imp...

Page 4: ...n plate contains the following information Information on the identific ation plate Meaning Serial number For identification Unit designation V Operating voltage mA Current consumption Product complies with European standards and directives Proper disposal of the product 3 3 Checking the scope of delivery Quantity Contents 1 Controller 1 VRC 693 outside temperature sensor or VRC 9535 outside tempe...

Page 5: ...s Horizontal plug in connections with no pins on the heat generator s electronics box Controller PCB with horizontally connec ted 3 pin header Carefully push the controller with the connected 3 pin header connector into the plug in connection of the electronics box 3 Connect the outside temperature sensor Page 6 4 3 Installing the outside temperature sensor The conditions for the installation site...

Page 6: ...lation unit 1 When connecting the controller to the ventilation unit proceed as described in the installation instructions for the ventilation unit Conditions Ventilation unit connected to the eBUS without VR 32 Ventil ation unit without Vaillant heat generator Connect the eBUS line to the eBUS terminals in the con troller s wall socket Connect the eBUS line to the eBUS terminals on the ventilatio...

Page 7: ...e described in the operating instructions for the controller The setting and read out option for the competent person can be found via Menu Installer level Installer level Page 20 The path details given at the start of each function descrip tion indicate how you reach this function in the menu struc ture The square brackets contain the level of detail to which the function belongs The description ...

Page 8: ... circuit conf You can use this function to define the zones on which you want the settings for the operating mode and desired temperature from the operator level to take effect Example Two zones are connected and you set ZONE1 For both zones use the left hand selection button Menu Basic settings Operating mode to activate Automatic mode If the operator now uses the right hand selection button Op e...

Page 9: ... to the auxili ary heater set a low flow temperature The operator notices a heat loss and recognises that there is a problem with the heat pump In addition the message Restricted operation comfort protection appears in the display If the operator releases the auxiliary heater to gen erate the required energy the controller overrides the set temperature for limp home mode You cannot use this functi...

Page 10: ...ed to the multi function output Configuring the inputs and outputs of the VR 70 Page 25 The MA VR70 addr 1 function does not appear on the display if the system configuration is used to define the functions of the multi function output 8 4 Additional module 8 4 1 Configuring the multi function output Menu Installer level System configuration Add on module Multi function output 2 You can use the mu...

Page 11: ...ect against corrosion in the floor standing boiler as a result of falling below the dew point for an extended period DHW The heating circuit is being used as a hot water circuit for an additional cylinder Depending on the Type of circuit that is selected only the corresponding functions appear on the display as list entries 8 6 2 Reading the status of the heating circuit Menu Installer level Syste...

Page 12: ...outside time periods Menu Installer level System configuration HEAT ING1 Auto Off mode This function enables you to specify for each heating circuit separately the controller functions in automatic mode outside active time periods Default setting Eco You can select from two controller behaviours which you can adapt further by using the room temperature control If you have set the value Thermost fo...

Page 13: ...l in combination with careful selection of the heating curve leads to optimum control of the heating installation 8 6 17 Activating Cooling possible Menu Installer level System configuration HEAT ING1 Cooling possible If a heat pump is connected you can use the heating circuit to activate the Cooling function 8 6 18 Activating the dew point monitoring Menu Installer level System configuration HEAT...

Page 14: ...of the zone valve Open Closed 8 8 DHW circuit 8 8 1 Setting the cylinder Menu Installer level System configuration Domestic hot water Cylinder You can use this function to activate or deactivate a cylin der for the hot water circuit If a cylinder is connected to the heating installation the set ting must always be active 8 8 2 Reading the hot watwer circuit s target flow temperature Menu Installer...

Page 15: ...e domestic hot water cylinder is then charged to the flow temperature which equates to the total of the Desired temperature Hot water and this offset value 8 8 11 Setting the maximum cylinder charging time Menu Installer level System configuration Domestic hot water Max cyl charg time If a heat pump is connected you can use this function to set the maximum charge time for which the cylinder is cha...

Page 16: ... not allow the heat generator to go into heating mode You can find the maximum target flow temperature that the heat generator can achieve in the installation instructions for the heat generator If the max target flow temperature that is set is too low the domestic hot water unit cannot provide the required hot wa ter temperature for the cylinder 8 10 Solar circuit 8 10 1 Reading the collector tem...

Page 17: ... 11 2 Defining the switch off differential for solar charging Menu Installer level System configuration Solar cylinder 1 Switch off diff This function allows you to define a differential value for stopping solar charging The temperature difference is measured between the lower cylinder temperature sensor and the collector temperature sensor If the temperature difference falls below the differentia...

Page 18: ...evel System configuration Ventila tion Air quality sensor 1 2 3 You can use this function to read the measured values from the air quality sensor 8 13 2 Setting the maximum value for air quality sensor Menu Installer level System configuration Ventila tion Max air qual sensor You can use this function to set a maximum value for the air quality If the air quality exceeds the maximum value specified...

Page 19: ...e status Fault list is displayed In this case the right hand selection button has the function Display Press the right hand selection button to display a list of fault messages Note Not all fault messages in the list will appear auto matically on the basic display Fault messages Appendix C 1 Faults Appendix C 2 10 Decommissioning 10 1 Replacing the product 1 Decommission the heating installation i...

Page 20: ...ervice date Next service on Date Installer level System configuration System Fault status Current value Water pressure Current value bar System status Current value Frost protect delay 0 12 h 1 4 OT constant heating Off 25 10 1 Off Controller modules Display Software version Adaptive heat curve Current value Yes No No Configure heat circ All Zone Zone Automatic cooling Yes No No Start OT cooling 1...

Page 21: ...l Heating Status Current value Off Heat mode Cooling DHW Flow temp setpoint Current value Target flow temp pool Current value 1 T fl temp Day 5 90 1 65 T fl temp Set back 5 90 1 65 Target return temp 15 80 1 30 Min cool fl tgt temp 7 24 1 20 Current temperature Current value Excessive temp 0 30 K 1 0 Max limit outs temp 10 99 1 21 Minimum temperature 15 90 1 15 Maximum temperature 15 90 1 90 Auto ...

Page 22: ...Off Buffer cylinder Cyl temp Top Current value 1 Cyl temp Bottom Current value 1 DHW temp sensor top Current value 1 DHW tmp sensor bot Current value 1 Heat temp sens top Current value 1 Heat temp sens bot Current value 1 Max DHW fl targ temp 60 80 1 80 Solar circuit Collector temperature Current value Solar pump status Current value Off On Solar pump runtime Current value h Reset runtime No Yes N...

Page 23: ...d you can read the fault message in the Fault mes sages section A 3 Functions for the heating circuit Depending on what the heating circuit is used for heating circuit direct circuit pool circuit fixed value circuit etc specific functions are available in the controller You can use the table to read which functions appear on the controller s display for the selected type of circuit Available funct...

Page 24: ... circuit x HCxcl Heating circuit mixer is closed for heating circuit x in combination with HCxop HCxop Heating circuit mixer is open for heating circuit x in combination with HCxcl DEMx Input for external requirement for heating circuit x FSx Flow temperature sensor for heating circuit x MA Multi function output DHW1 Cylinder temperature sensor DHWBt Bottom cylinder temperature sensor SysFlow Syst...

Page 25: ...PWM 12 COLP HC1P TDO 3WV HC2op HC2cl Solar Yield DHWBt TD1 TD2 COL FS1 PWM B 3 Configuring the outputs of the VR 71 Set value R1 R2 R3 R4 R6 R7 R8 R9 R10 R11 R12 3 HC2P HC3P HC4P MA LP 3WV HC2op HC2cl HC3op HC3cl HC4op HC4cl B 4 Configuring the inputs of the VR 71 Set value S1 S2 S3 S4 S5 S6 S7 S8 S9 3 SysFlow FS2 FS3 FS4 BufBt DEM2 DEM3 DEM4 DHW1 B 5 VR 70 sensor assignment Set value S1 S2 S3 S4 ...

Page 26: ...ble Incorrect plug connection 1 Check the plug connection Communication fault Heat pump The cable is defective 1 Replace the cable Incorrect plug connection 1 Check the plug connection Communication fault VPM W The cable is defective 1 Replace the cable Incorrect plug connection 1 Check the plug connection Communication fault VPM S The cable is defective 1 Replace the cable Incorrect plug connecti...

Page 27: ...re error 1 Switch the mains switch on the heat generator that feeds the controller off and back on again The product is defective 1 Replace the product Heat generator continues to heat once the room temperature has been reached Incorrect value in the Room temp mod or Zone assign ment function 1 Set Thermost or Temp mod in the Room temp mod function 2 In the zone in which the controller is installe...

Page 28: ...17 Dew point setting the offset 13 Displaying fault messages list 19 Documents 4 Domestic hot water cylinder charging defining the offset 15 Domestic hot water cylinder reading the current temperature 14 Domestic hot water cylinder setting the set target temperature 14 E Entering contact details 7 Entering the service date 7 F Fitting the controller living room 4 Frost 3 H Handing over 7 Heat gene...

Page 29: ...ing the day target flow temperature 11 Setting the day temperature 14 Setting the excess temperature 12 Setting the flow rate solar circuit 16 Setting the frost protection delay 8 Setting the heating bivalence point 9 Setting the heating curve 12 Setting the hot water bivalence point 9 Setting the hot water target flow temperature 16 Setting the hysteresis cylinder charging 15 Setting the limp hom...

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Page 32: ...2 07 022 09 28 Vaillant Service Solutions 03 30 100 31 43 Spares Technical Enquiries 177 359 66 15 info vaillant co uk technicalspares groupservice co uk www vaillant co uk These instructions or parts thereof are protected by copyright and may be reproduced or distributed only with the manufacturer s written consent 2703768_rev1 ...