Selecting The Expansion Module For Sensor/ Actuator Test; Activating The Screed Drying Function; Changing The Code For Installer Level - Vaillant VRC 470 Installation Instructions Manual

8.7 Selecting the expansion module for sensor/
actuator test
Menu ¬ Installer level ¬ Sensor/ actuator test ¬
[Select module]
This function allows you to select a connected expansion
module for the sensor and actuator test.
The controller lists the actuators and sensors of the
selected expansion module.
If you confirm the selection of an actuator with "Ok",
the controller activates the relay. The actuator's func-
tion can now be checked. Only the activated actuator is
active, all other actuators are "deactivated" at this time.
For example, you can drive a mixer in the "OPEN" direc-
tion and check that it is connected the right way round
or activate a pump and check that it starts up.
If you select a sensor, the controller shows the measured
value of the selected sensor. For the selected compo-
nent, read the measured values from the sensors and
check whether the individual sensors are providing the
expected values (temperature, pressure, flow volume ...).
8.8

Activating the screed drying function

Menu ¬ Installer level ¬ Screed drying function ¬
HEATING 1/2
With this function, you can "dry heat" freshly laid screed
in accordance with the construction regulations, accord-
ing to a defined time and temperature plan.
When floor drying is activated, 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.
The function is available for HEATING 1 and HEATING 2,
but not for both heating circuits at the same time. If
mixing module VR 61 is connected, the function is only
available for HEATING 2. The controller operates HEAT-
ING 1 in the set mode.
Target flow temperature on starting day 1: 25 °C.
Installation instructions VRC 470 0020116690_00
Functional description
Days after starting the
function
1
2
3
4
5
6 - 12
13
14
15
16
17 - 23
24
25
26
27
28
29
Tab. 8.1 Screed drying time and temperature profile
In the display, the mode is displayed with the current
day and the target flow temperature. You can set the
current day manually.
When the function is started, the current time of the
start is saved. The day is changed exactly at this time.
After a mains Off/On, floor drying starts with the last
active day.
The function ends automatically when the last day of
the temperature profile has elapsed (day = 29)
or
if you set the start day to 0 (day = 0).
8.9

Changing the code for Installer level

Menu ¬ Installer level ¬ Change code
This function allows you to change the access code for
"Installer level" operating level.
If the code is no longer available, you must reset the
controller to the factory setting in order to obtain access
to Installer level again.
Target flow temperature for
this day [°C]
25
30
35
40
45
45
40
35
30
25
10 (frost protection function,
pump in operation)
30
35
40
45
35
25
8
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