Vaillant VRC 470 Installation Instructions Manual page 3

8.5.6 Defining the time for executing the anti-
Legionella function ...................................................33
8.5.7 Defining the offset for charging the
domestic hot water cylinder ..................................33
8.5.8 Defining the run-on time for the cylinder
charge pump ..............................................................33
8.5.9 Activating parallel charging (domestic hot
water cylinder and mixing circuit) ........................34
8.5.10 Setting the relay output for cylinder charge
pump and circulation pump ...................................34
8.6 System configuration: Solar ...................................34
8.6.1 Reading the value of the cylinder sensor SP2 ..34
8.6.2 Reading the value of the solar gain sensor .......34
8.6.3 Reading the status of the solar pump .................34
8.6.4 Reading the value of the TD1 sensor ...................34
8.6.5 Reading the value of the TD2 sensor ..................34
8.6.6 Reading the status of the multi relay ..................34
8.6.7 Reading the runtime of the solar pump ..............35
8.6.8 Resetting the runtime measurement of
the solar pump ..........................................................35
8.6.9 Activating the solar pump on temperature
difference control .....................................................35
8.6.10 Defining the priority for charging the
domestic hot water cylinder ..................................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
8.6.15 Defining the maximum temperature for solar
cylinder ........................................................................36
8.6.16 Defining the on temperature difference
value for solar charging ..........................................36
8.6.17 Defining the off temperature difference
value for solar charging ..........................................36
8.6.18 Defining the on temperature difference
value for second difference control .....................36
8.6.19 Defining the off temperature difference
value for second difference control .....................36
8.7 Selecting the expansion module for sensor/
actuator test ..............................................................37
8.8 Activating the screed drying function ................37
8.9 Changing the code for Installer level ...................37
8.10 Operator level functions .........................................38
9 Handing over the unit to the owner .................39
10 Fault recognition and clearance ........................ 40
10.1 Error messages ........................................................ 40
10.2 List of errors ...............................................................41
10.3 Restore factory settings ...........................................41
11 Warranty and customer service.........................42
12 Taking out of service .............................................43
12.1 Taking the controller out of service .....................43
12.2 Recycling and disposing of the controller ..........43
Installation instructions VRC 470 0020116690_00
12.2.1 Unit ...............................................................................43
12.2.2 Packaging ....................................................................43
13 Technical data ......................................................... 44
13.1 Controller VRC 470 ................................................. 44
13.2 Sensor resistances .................................................. 44
14 Glossary .................................................................... 45
Index ............................................................................47
Table of contents
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