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Vaillant VRC 400 Operating and, Operating And Installation Manual

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Vaillant VRC 400 Operating and Operating And Installation Manual Download Page 32

32

Installation Manual 

for VRC 400 weather compensator

9 Installation

  Caution!

There is a risk of the wall and 
control becoming wet.
Lay the cables properly and 
carefully to ensure that the out-
door sensor and the building are 
not damaged by water.
The control must be fixed to the 
wall in the correct position, as 
shown in fig. 9.3. 
The cable entry (3, fig. 9.3) must 
point downwards.

Fig. 9.3  Fitting and positioning the outdoor 

sensor

Summary of Contents for VRC 400 Operating and

Page 1: ...For the owner and the heating engineer Operating and Installation Manual VRC 400 Programmable weather compensator with separat HW time control GB ...

Page 2: ... manual 6 1 Control overview 6 2 Display overview 7 3 Description of the control 8 4 Operation 9 4 1 Setting the operating modes 9 4 2 Setting the current day and time 12 4 3 Setting timer programmes 13 4 4 Setting the room temperature 16 4 5 Setting the hot water temperature 19 4 6 Activating special functions 20 4 7 Info level 22 5 Vaillant warranty 23 6 Recycling and disposal 24 ...

Page 3: ...26 8 1 Safety instructions 27 8 2 Regulations 27 9 Installation 28 9 1 Control installation 28 9 2 Wall mounting 28 9 3 Installing the VRC 693 outdoor sensor 30 10 Electrical installation 33 10 1 Connecting the weather compensator 34 10 2 Connecting the outside sensor 34 11 Start up 35 11 1 Installer level 36 11 2 Service diagnostic level 40 11 3 Handing over to the owner 42 12 Technical data 43 1...

Page 4: ... installation and operation manual We accept no liability for any damage caused by failure to observe these instructions Symbols used Please observe the safety instructions in this manual for the installation of the control Danger Immediate risk of serious injury or death Symbol for a necessary task Storage of the documents Please pass on this operating and installa tion manual to the owner of the...

Page 5: ...eather compensator Safety Safety The weather compensator must be installed by a qualified engineer who is responsible for adhering to the existing standards and regulations We accept no liability for any damage caused by failure to observe these instructions ...

Page 6: ...VRC 400 weather compensator 1 Control overview Operating manual 1 Control overview 1 2 Fig 1 1 Control overview Key 1 Display 2 Dial turn and click I Info button F Special functions button P Programming button installer level ...

Page 7: ...lay Key 1 Installer level and service diagnosis level see 11 1 2 Info level see 4 7 3 Circulation pump symbol 4 Time temperature display 5 Days of the week 6 Actual temperature 7 Operating modes see 4 1 8 Special functions see 4 6 9 Setting timer programmes see 4 3 10 Boiler operation indicator 11 Hot water symbol 12 Heating circuit symbol ...

Page 8: ...h a weekly programme for heating hot water and a circulation pump for connecting to Vaillant boilers with an eBus The VRC 400 enables you to set heating programmes depending on the outside temperature In addition you can select special functions such as the party func tion and control the timed operation of hot water and a separate circulation pump ...

Page 9: ...eating hot water and or the circula tion pump depending on which is requested 4 1 Setting the operating modes Table 4 1 contains an overview of the operating modes you can select The selected operating mode affects the timer programmes both for heating and for hot water and the circulation pump When the weather compensator is in normal display mode press the dial once the symbol for the selected m...

Page 10: ...F according to the timer programme set on the control ler The hot water symbol and the circulation pump symbol are shown when the time window is active If there is a hot water request the hot water symbol flashes Heating The heating circuit is operated according to the room temperature regardless of the programme set on the controller The heating circuit symbol is displayed if a heating requiremen...

Page 11: ...C is not active The heating circuit symbol is displayed if a heating requirement is detected or the anti frost function is active See the table on the left Off The heating circuit is off provided that the frost protection function if the outside temperature is below 3 C is not activated If the frost protection function is activated the heating circuit symbol is displayed The boiler is not heated u...

Page 12: ...ay of the week MO Monday TU Tuesday WE Wednesday TH Thursday FR Friday SA Saturday SU Sunday Press the dial The hours start flashing Turn the dial until you see the current hour Press the dial The minutes start flash ing Turn the dial until you see the current minute The display switches back to normal mode after five seconds If the calendar is activated on the install er level see 11 1 you can se...

Page 13: ...able 4 2 Default heating hot water and cir culation programmes You can adapt the default programmes to suit your needs There are six steps to setting the times you want 1 Press the programming button P 2 Select the timer programme heating hot water or circulation pump 3 Select the time window 4 Select the day or block of days 5 Set the start time 6 Set the end time You can define three time window...

Page 14: ...essing the programming button P select the corresponding sym bol heating circuit or circulation pump and continue as shown in the example Display Required steps Press the programming button P The cursor black triangle marks the value which can be changed which also flashes Turn the dial until you see the hot water symbol Press the dial The cursor marks the adjustable value H1 which also flashes Se...

Page 15: ...FR SA SU MO Monday TU Tuesday WE Wednesday TH Thursday FR Friday SA Saturday SU Sunday Display Required steps Press the dial The cursor marks the start time and the hour display flashes Select the start time by turning the dial Press the dial again to set the min utes Press the dial The cursor marks the end time and the hour display flashes Select the end time by turn ing the dial Click the dial a...

Page 16: ...is installed in the boiler the basic display shows the set room temperature from which the required flow temperature for the set heating curve is calculated You can set the room temperature directly from the basic display If the temperature level function is activated on the installer level setting different temperatures for each time window see 11 1 the display shows the currently set room temper...

Page 17: ...e you move the set heating curve parallel on a 45 axis and the flow temperature calcu lated by the weather compensator Setting the required room temperature directly Turn the dial with the display in nor mal mode The current temperature display disap pears the sun symbol is displayed on the mode level and the required room temperature is shown e g TEMP 20 0 C By turning the dial you can set the re...

Page 18: ...The set value flashes Turn the dial until you see the room tem perature you want for the time window H1 The new room temperature is assigned to all time windows with H1 Press the dial T H2 is displayed along with a set value The set value flashes Turn the dial until you see the room temperature you want for the time win dow H2 The new room temperature is assigned to all time windows with H2 Press ...

Page 19: ... required set back temperature is displayed e g ECO 15 0 C The display switches back to normal mode after five seconds 4 5 Setting the hot water temperature You can set the hot water temperature from the basic display Please note the set maximum hot water temperature on the boiler Press the dial several times until DHW appears in the display The set value flashes Turn the dial until the required h...

Page 20: ...veto tem perature you want is displayed After 10 seconds the display returns to normal mode and the function is activated To deactivate the function early just press the F button Display Required steps Energy Saving function The energy saving function lets you lower the heating for an adjustable period regardless of the set heating programme Press the special function button twice and the energy s...

Page 21: ...after ten seconds The function is deactivated auto matically on reaching the next heating phase If you want to deactivate the function before just press the F button The function can be activated only in Auto mode or Eco mode Display Required steps One time recharging Cylinder Boost This function allows you to fill the cylinder regardless of the set timer programme Press the special function butto...

Page 22: ... mode is set to OFF for the selected period see 4 1 If you want to deactivate the function before just press the F button If the anti legionnaire s disease function is activated it is performed on the last day of the holiday Table 4 4 Special functions 4 7 Info level Press the info button to access the info level The info symbol appears in the dis play as soon as you open the info level Each time ...

Page 23: ...ng eve ry single time window per day Timer programmes set for hot water every single time window per day Timer programmes set for the circula tion pump every single time window per day 5 Vaillant warranty We only grant a Vaillant manufacturer s warranty if a suitably qualified engineer has installed the system in accordance with Vaillant instructions The system owner will be granted a war ranty in...

Page 24: ...0 weather compensator 6 Recycling and disposal 6 Recycling and disposal Neither the weather compensator or any of its accessories belong in the household waste Make sure the old con trol and any accessories are disposed of properly ...

Page 25: ...oilers meets the basic requirements of the Council of Europe s directive 89 336 EEC on electromagnet ic compatibility and the low voltage directive 73 23 EEC 7 2 Intended use The VRC 400 weather compensator is a state of the art control which has been constructed in accordance with recog nised safety regulations Nevertheless there is a risk of death or serious injury to the user or others and the ...

Page 26: ... use is consid ered to be improper The manufacturer or supplier is not liable for any resulting damage The user alone bears any risk Intended use includes the observance of the oper ating and installation manual 8 Safety instructions and regulations The control must be installed by an approved company specialised in heating engineering which is responsible for compliance with applicable standards ...

Page 27: ... controller from its wall mounting or base when it is not live 8 2 Regulations All wiring must be in accordance with Building Regulations Part P current IEE regulations and all other relevant regu lations and guidelines and must be car ried out by a suitably qualified person Use standard commercial cables for the wiring Minimum cross section of wires 0 75 mm2 Do not exceed following maximum wire l...

Page 28: ...all the weather compensator directly in the front screen of the boiler you only need to remove the front screen and to push the controller into the supplied plug in connection with a pin bar 9 2 Wall mounting The VRC 400 weather compensator is designed so that it can be used as a remote control control with or without room modulation The controller must be installed to ensure that it can properly ...

Page 29: ...open when using room modulation The connection to the boiler is a 2 core bus cable eBus see fig 10 1 Pull the weather compensator 1 out of the mounting box 5 Drill two holes 3 of 6 mm diameter as shown in fig 9 1 and put in the sup plied wall plugs Thread the connection cable through the duct 4 Fix the mounting box to the wall with the two screws provided i F P 1 3 5 4 2 Fig 9 1 Mounting the contr...

Page 30: ...ed as shown in the diagram Current safety regulations must be followed as well as the installation instructions for the heat ing equipment and for the heating con troller Installation location The outdoor sensor should be installed on the side of the house where the most frequented rooms are located If this side can t be clearly identified then install it on the north or north west side of the hou...

Page 31: ...ot be exposed to direct sunlight The device must be at least 1 m away from any opening in the outer wall from which warm air can either continu ously or occasionally issue It can be installed either in or on the wall depending on the accessibility of the location ð Ł ł N S W O 1 3 2 3 1 m N NW optional Fig 9 2 Installation location of the VRC 693 outdoor sensor ...

Page 32: ...ntrol becoming wet Lay the cables properly and carefully to ensure that the out door sensor and the building are not damaged by water The control must be fixed to the wall in the correct position as shown in fig 9 3 The cable entry 3 fig 9 3 must point downwards Fig 9 3 Fitting and positioning the outdoor sensor ...

Page 33: ...sor and the wall are not damaged by water Wire up the terminals as shown in the diagram in fig 10 1 Make sure the housing seal is correctly fixed in the top section of the housing 1 and push the top section onto the housing Fix the top of the housing 1 to the bottom 2 using the screws supplied 10 Electrical installation The electrical connection may only be carried out by a suitably qualified engi...

Page 34: ...r For wall mounting the communciation to the boiler is through the eBus All eBus connectors are designed to take at least 2x0 75mm2 recommended per termi nal This means that the wires can be swapped without impairing communica tion fig 10 1 Also follow the instructions for the boil er Do not remove the jumper between ter minals 3 and 4 on the boiler 10 2 Connecting the outside sensor The external ...

Page 35: ...on 11 Start up Certain system parameters have to be set in order for them to best suit the actual conditions These system parame ters are all together in the intaller level and should only be set by the heating engineer The service diagnostic level is also intended for the engineer and is designed to help during servicing ...

Page 36: ...he system parameters in turn Turn the dial to set the values you want When you press the P button the display returns to basic mode You can select and change the following parameters Display Setting by turning the dial Set back temperature Default setting 15 C Adjustment range 5 30 C Set hot water temperature Default setting 60 C Adjustment range 35 70 C Correction of actual room temperature Adjus...

Page 37: ...tched on and oper ated at 70 C for at least 30 minutes Default setting 0 off Display Setting by turning the dial Heating curve The heating curve repre sents the ratio between out side temperature and target flow temperature Default setting 1 2 Room temperature modula tion wall installation only 1 Room temperature modulation including the room tem perature in the flow tem perature calculation 2 The...

Page 38: ...activated at outside tem peratures below 3 C Adjustment range 0 12 h Default setting 0 h Display Setting by turning the dial Outside temperature shut down threshold Shurtdown temperature for demand based deactivation of heating Adjustment range 5 50 C Default setting 22 C Outside temperature cor rection Corrects the temperature currently measured by the set value to compensate for outside influenc...

Page 39: ...drau lic switch is used default setting 0 Off Day setting For activation of the calendar Month setting For activation of the calendar Display Setting by turning the dial Year setting For activation of the calendar Temperature level Activate the setting for different temperatures for each time window 0 Temperaturel level off 1 Temperature level on default setting 0 ...

Page 40: ...y when temperature lev els are activated Table 11 1 System parameters 11 2 Service diagnostic level Access the service diagnostic level by pressing the P button and the dial Press the P button and the dial simul taneously for 3 seconds First a heating request for 50 C is trig gered to test communication with the boiler Then you can select all the test options by pressing the dial see table 11 2 Wh...

Page 41: ...and the pump starts only up to the maxi mum flow temperature of the boiler Turn Hot water request A hot water request is activated charging pump starts working all other elements are switched off Turn Circulation pump The circulation pump is activated if connected All other elements are switched off Press Display test All display elements are displayed Press Software version The software version i...

Page 42: ... that you will have to perform all individual set tings again 11 3 Handing over to the owner The owner of the weather controller must be instructed about its functions and how to operate it Hand over any instructions intended for the owner as well as the control documents Go through the operating manual with the owner and answer any questions Draw special attention to the safety instructions which...

Page 43: ... 50 Current consumption mA 17 Minimum cross section of wires mm2 0 75 Level of protection IP 20 Protection class III Dimensions Height mm 97 Width mm 146 Depth mm 40 Table 12 1 Technical data 13 Vaillant customer service To ensure regular servicing it is strongly recommended that arrangements are made for a Maintenance Agreement Please contact Vaillant service 0870 6060 777 for further details ...

Page 44: ...44 Operating manual and installation manual for VRC 400 weather compensator EC declaration of conformity ...

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Page 48: ...838587_00 GB 04 2005 ...

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