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Functional description

Installation instructions VRC 470 0020116690_00

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8

8.4.3  

Setting the room temperature

Menu ¬ Installer level ¬ System configuration 
 [HEATING 1/2 ----] ¬ Room temp. target

This function allows you to set the desired target room 
temperature separately for each  heating circuit.

8.4.4  Reading the current room temperature

Menu ¬ Installer level ¬ System configuration 
 [HEATING 1 ----] ¬ Room temp. currant

This function allows you to read the current value of the 
room temperature sensor integrated in the controller. 

8.4.5  

Setting the set-back temperature (  set-back 
temp.)

Menu ¬ Installer level ¬ System configuration 
 [HEATING 1/2 ----] ¬ Set-back temp.

This function allows you to set the desired set-back tem-
perature separately for each heating circuit. The set-
back temperature is the temperature to which the heat-
ing is to be reduced at times of low heat demand (e.g. 
overnight).

8.4.6  Reading the target flow temperature

Menu ¬ Installer level ¬ System configuration 
 [HEATING 1/2 ----] ¬ Flow temp. target

This function allows you to set the target flow tempera-
ture separately for each heating circuit.

8.4.7  

Reading the current flow temperature

Menu ¬ Installer level ¬ System configuration 
 [HEATING 1/2 ----] ¬ Flow temp. current

This function allows you to read the current flow tem-
perature separately for each heating circuit.

8.4.8  

Reading the status of the heating circuit 
pump

Menu ¬ Installer level ¬ System configuration 
 [HEATING 1/2 ----] ¬ Pump status

Only with a connected VR 61/2
This function allows you to read the current status (On, 
Off) of the heating circuit pump separately for each 
heating circuit.

8.4.9  Reading the status of the heating circuit 

mixer

Menu ¬ Installer level ¬ System configuration 
 [HEATING 2 ----] ¬ Mixer status

This function allows you to read the current status 
(opening, closing, stationary) of the heating circuit mixer 
for HEATING 2.

8.4.10  Activating room temperature control  

Menu ¬ Installer level ¬ System configuration 
 [HEATING 1/2 ----] ¬  Room temp control

This function allows you to define if the temperature 
sensor integrated in the controller or in the remote con-
trol unit should be used.
Requirement: The controller is not installed in the boiler, 
but is wall-mounted or the VR 81/2 remote control unit is 
connected.

None: 

Temperature sensor is not used for control.

Thermostatic control:

 The built-in temperature sensor measures the current 
room temperature in the reference room. This value is 
compared with the target room temperature and, if 
there is a difference, results in adjustment of the heating 
flow temperature by means of the so-called "Effective 
target room temperature".
Effective room set target temp. = set room target 
temp. + (set room set temp. - measured room set temp.) 
The effective target room temperature is then used for 
controlling instead of the set target room temperature.

Thermostat:

Works in the same way as thermostatic control, however 
the heating circuit is also switched off when the meas-
ured target room temperature is +3 °C greater than the 
set target room temperature.
When the room temperature falls 2 °C below the set tar-
get room temperature again, the heating circuit is 
switched on again.
The use of room thermostat control, in combination with 
careful selection of the heating curve, leads to optimum 
control of the heating installation.

8.4.11  

Activating automatic summer time 
recognition

Menu ¬ Installer level ¬ System configuration 
 [HEATING 1/2 ----] ¬ Summer mode offset

This function allows you to define if the controller 
should automatically activate "Summer mode" based on 
a temperature calculation for all heating circuits. The 
controller remains in automatic mode.

Summary of Contents for VRC 470

Page 1: ...Installation instructions For the heating engineer GB IE Installation instructions VRC 470f...

Page 2: ...ng the hot water production status 28 8 2 4 Reading the collector temperature 28 8 2 5 Setting the frost protection delay 29 8 2 6 Setting the pump blocking time 29 8 2 7 Setting the maximum pre heati...

Page 3: ...r 35 8 6 11 Setting the flow volume of the solar circuit 35 8 6 12 Defining the setting for multi relay 35 8 6 13 Activating the solar pump kick 35 8 6 14 Setting the solar circuit protection 35 8 6 1...

Page 4: ...ore these so that they are available when required 1 3 Symbols used The symbols used in the text are explained below Sym bols for identifying dangers are also used in these oper ating instructions Sec...

Page 5: ...to the units and other property in the event of improper use or use for which they are not intended The Vaillant VRC 470 controller controls a heating sys tem in a weather compensated and time depende...

Page 6: ...s have been removed bridged or disabled Immediately rectify any faults and damage that may negatively affect safety Inform the operator that he must not cover the con troller with furniture curtains o...

Page 7: ...e temperature is low the controller increases the flow temperature and if the outside tem perature is high it reduces the flow temperature again Thus the controller absorbs fluctuations in the outside...

Page 8: ...470 1 2 3 4 5 Fig 3 3 Identification plate example Key 1 EAN code 2 Unit designation 3 Operating voltage 4 Current consumption 5 CE label 3 5 Accessories i If the controller is supplemented with acces...

Page 9: ...led in the boiler or if the second heating circuit is to be influenced decentrally you can use the remote control unit VR 81 2 You can use the remote control unit VR 81 2 to set the parameter Room tem...

Page 10: ...h or north west facing wall On building with up to three floors install the external sensor Section 4 5 at 2 3 of the total wall height and on buildings with more than three floors install it between...

Page 11: ...living room 3 4 4 7 6 5 3 2 1 3 Fig 4 2 Mounting the controller 1 Controller VRC 470 2 Wall mounting base 3 Mounting holes 4 Openings for cable entry 5 Pin header with terminals for the eBUS cable 6 W...

Page 12: ...ard to latch into the sides of the wall mounting base 4 5 Installing the external sensor b Caution Risk of material damage if fitted incor rectly Incorrect fitting can cause damage to the unit and the...

Page 13: ...ternal sensor Drill two holes with 6 mm diameter in accordance with the mounting holes 1 Insert the wall plugs supplied Fix the wall mounting base 4 to the wall with two screws The cable entry must po...

Page 14: ...ernal sensor VRC 693 1 Connection cable to the external sensor VRC 693 2 6 way edge connector for plug location X41 boiler Connect external sensor VRC 693 to the boiler as follows Connect the connecti...

Page 15: ...nd 4 is installed Disconnect the power supply to the boiler Secure the power supply to the boiler against being switched on again 1 2 Fig 5 3 Connecting the controller Key 1 VRC 470 2 Boiler terminal...

Page 16: ...t Step size select Factory reset Own setting min max Language Languages available for selection German Heating circuit 1 Generator circuit inactive Generator circuit Heating circuit 2 2 Zone mixing ci...

Page 17: ...nction The mode for hot water production is dependent on this and cannot be set separately Set the target room temperature Desired day tem perature Set the set back temperature Desired night temper at...

Page 18: ...evels the Operator level and the Installer level The reading and set up options in Operator level are also described in the operating instructions Below you can find the reading and set up options whi...

Page 19: ...Heating circuit conf Back 0 K List Ht crt 1 Heat Generator Heat Generator Status VF1 Back Off Off Off Domestic hot water Cyl temp current Cylinder charge pump Circulation pump Back 59 C Active Heat Ge...

Page 20: ...TD2 Back On 64 C 54 C Solar Status multi relay Solar pump runtime Reset solar runtime Back Change On 1963h 1963h No 130 C Solar Pump control Lead cylinder Solar flow voume Back Off 1 165l min LP ZP V...

Page 21: ...y 0 12 h 1 4 Pump Blocking Time Off 5 60 min 1 15 Max pre heat 0 300 min 10 0 Max pre switch off 0 120 min 10 0 OT constant heating Off 25 10 C 1 Off Raising temperature 2 0 15 K 0 Control modules Lis...

Page 22: ...t value C Flow temp current Current value C Pump status 2 Current value On Off Room temp control None Modulation Thermost None Summer mode offset 3 30 K 1 1 Heat curve 0 20 4 0 0 05 1 2 Min temperatur...

Page 23: ...osing Room temp control None Modulation Thermost None Summer mode offset 0 30 K 1 1 Heat curve 0 20 4 0 0 05 1 2 Min temperature 15 90 C 1 15 Max temperature 15 90 C 1 75 System off mode Eco Set back...

Page 24: ...ff Anti legionella time 0 00 23 50 hr min 10 min 4 00 Cylinder boost offset 3 15 40 K 1 25 Load pump 0 10 min 1 5 Paral cyl charge 2 Off On Off On Off LP ZP relay connection 2 no connect Circ pump Cha...

Page 25: ...linder 1 2 1 2 1 Solar flow volume 0 0 99 0 l min 0 5 3 5 Multi relay diff ctrl Cylinder2 diff ctrl Solar pump kick On Off On Off Off Solar circuit prot Off 110 150 C 1 130 Solar cylinder 1 1 Max temp...

Page 26: ...2 Actuator LP ZP HK1 P HK2 AUF HK2 ZU HK2 P Sensor VF2 VF2 VR 68 1 Actuator MA KOL1 P LEG P Sensor KOL1 SP1 SP2 Yield TD1 TD2 actoSTOR 4 Actuator ZP P1 P2 AL Sensor T1 T2 T3 T4 Anode 1 Appears only if...

Page 27: ...urr value 45 C Change code New code 000 999 1 000 1 Appears only if solar module VR 68 2 is connected 2 Appears only if mixing module VR 61 2 is connected 3 Appears only if mixing module VR 61 2 or so...

Page 28: ...an save a date day month year for the next regular service When the date for the next service appointment is reached the message Service is displayed in the basic display of the controller If a servic...

Page 29: ...stem configuration System Max pre heat This function allows you to start the heating function for the heating circuits a set amount of time before the first period of the day so that the target room t...

Page 30: ...nction key Mode then the mode is only changed for HEATING 1 HEATING 2 continues to be operated in Automatic mode 8 3 System configuration Heat generator 8 3 1 Reading the status of the heat generator...

Page 31: ...er status This function allows you to read the current status opening closing stationary of the heating circuit mixer for HEATING 2 8 4 10 Activating room temperature control Menu Installer level Syst...

Page 32: ...actory reset Frost prot There are three control modes for selection which you can adapt further by using the Room temperature control Frost protection The heating function is switched off and the fros...

Page 33: ...terminated automatically when the cylin der sensor SP1 measures a temperature of 60 C for more than 60 minutes or after a period of 120 minutes has elapsed to avoid getting stuck in this function if...

Page 34: ...he desired actuation of a cylinder charge pump LP or circulation pump ZP for an implemented hydraulic scheme The setting Not connected means that the output on the VR 61 2 is not used 8 6 System confi...

Page 35: ...the cylinder with cylinder sensor SP1 2 Cylinder 2 is the cylinder with cylinder sensor TD1 This function is only effective if you set Cylinder 2 for the multi relay when making the setting Sec tion 8...

Page 36: ...KOL1 exceeds the set value the controller switches the solar pump on and the solar cylinder is charged The difference value can be defined separately for two connected solar cylinders i Does not apply...

Page 37: ...all the selected operating modes are interrupted The controller controls the flow temperature of the con trolled heating circuit according to a pre set program regardless of the outside temperature T...

Page 38: ...modes for heating hot water production and the circulation pump Change heating circuit names Restore factory settings Activate advanced functions Set desired temperature for HEATING 1 HEATING 2 Set d...

Page 39: ...a cold water mixing valve is integrated as protec tion against scalding To avoid malfunctions provide information on which rules the operator must observe Only operate the heating system if it is in p...

Page 40: ...e sensor defective Sensor T3 fault Fault in temperature sensor 3 Temperature sensor 3 Cable defective plug connection not correct temper ature sensor defective Sensor T4 fault Fault in temperature sen...

Page 41: ...ive Sensor T4 fault Fault in temperature sensor 4 Temperature sensor 4 Cable defective plug connection not correct temperature sensor defective Heat exchanger calcified Heat exchanger of the boiler is...

Page 42: ...cordance with Vaillant instructions The system owner will be granted a warranty in accordance with the Vaillant terms and conditions All requests for work dur ing the guarantee period must be made to...

Page 43: ...er is disconnected from the power source The rest of the procedure depends on where the control ler is installed For wall mounting Insert a screwdriver into the slot 7 on the wall mounting base 2 Sect...

Page 44: ...ble cross section mm2 0 75 1 5 Protection type IP 20 Protection class III Max permitted ambient temperature C 50 Height mm 115 Width mm 147 Depth mm 50 Tab 13 1 Technical specifications VRC 470 13 2 S...

Page 45: ...10 to 60 min depending on the outside temperature If the heating flow temperature is lower than 13 C the boiler is switched on The target room temperature is regulated at 5 C If the outside tempera t...

Page 46: ...n pump the time periods determine the operating times In automatic mode the system is controlled as per the specified values in the time periods Room temperature The room temperature is the temperatur...

Page 47: ...ontact details 28 Entering the service date 28 Error history 41 Error messages 40 External sensor 7 10 14 Connecting the VRC 693 14 Connecting the VRC 9535 14 Installing the external sensor 12 F Facto...

Page 48: ...32 46 Settings for the operator 17 Setting the heating curve 32 Setting the maximum pre heating time 29 Setting the maximum pre switch off time 29 Setting the raising temperature 30 Setting the solar...

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Page 52: ...0020116690_00 GBIE 042011 Subject to change Manufacturer Supplier 2702416_rev0...

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