Start-Up; Prerequisites For Starting Up; Running The Installation Assistants; Changing The Settings Later - Vaillant sensoCOMFORT VRC 720f Manual De Uso

5

-- Start-up

5 -- Start-up
5.1

Prerequisites for starting up

–
The system control and outdoor temperature sensor have
been installed and wired.
–
The FM5 functional module is installed and connected in
accordance with configuration 1, 2, 3 or 6; see supple-
ment.
–
The FM3 functional modules are installed and connected;
see supplement. A unique address is assigned to each
FM3 functional module via the address switch.
–
Start-up of all system components (except for the system
control) is complete.
5.2

Running the installation assistants

The installation assistant is at the Language: query.
The system control's installation assistant takes you through
a list of functions. For each function, you should choose the
set value that is best suited to the heating installation being
installed.
5.2.1 Completing the installation assistant
Once you have gone through the installation assistant, Se-
lect the next step. appears on the display
Installation configuration: The installation assistant
switches to the system configuration for the installer level, in
which you can further optimise the heating installation.
Installation start: The installation assistant switches to the
basic display and the heating installation works with the val-
ues you have set.
Sensor/actuator test: The installation assistant switches to
the sensor/actuator test function. You can test the sensors
and actuators here.
5.3

Changing the settings later

All settings that you have made via the installation assistant
can be changed again at a later date via the end user or
installer level.
6

Fault and maintenance messages

6.1

Fault

How to respond if the heat pump fails
The system control switches to limp home mode, i.e. the
back-up boiler supplies the heating installation with heating
energy. During installation, the competent person has restric-
ted the temperature for limp home mode. You can feel that
the domestic hot water and heating are not becoming very
hot.
You can select one of the following settings until the compet-
ent person arrives:
Off: The heating and domestic hot water only become mod-
erately hot.
Heating: The back-up boiler takes over the heating mode;
the heating becomes hot and the domestic hot water is cold.
DHW: The back-up boiler takes over the domestic hot water
mode; the domestic hot water becomes hot and the heating
is cold.
104
DHW + heat.: The back-up boiler takes over the heating
and domestic hot water mode; the heating and domestic hot
water become hot.
The back-up boiler is not as efficient as the heat pump,
meaning that using only the back-up boiler to generate heat
is expensive.
Troubleshooting (→ Appendix)
6.2

Fault message

with the text of the fault message appears in the
display.
You can find fault messages under: MENU → SETTINGS →
Installer level → Fault history
Troubleshooting (→ Appendix)
6.3

Maintenance message

with the text of the maintenance message appears in the
display.
Maintenance message (→ Appendix)
6.4

Cleaning the outdoor temperature sensor

▶
Clean the solar cell with a damp cloth and a little solvent-
free soap. Do not use sprays, scouring agents, deter-
gents, solvents or cleaning agents that contain chlorine.
Note
After you have cleaned the solar cell, there is
a delay before the fault message disappears
because the battery has to be recharged first.
6.5

Changing the batteries

Danger!
Risk of death caused by unsuitable batter-
ies!
If batteries are replaced with the wrong type
of battery, there is a risk of explosion.
▶
Ensure that you use the correct battery
type when replacing batteries.
▶
Dispose of used batteries in accordance
with the instructions in this manual.
Warning.
Risk of chemical burns caused by leaking
batteries!
Corrosive battery fluid may leak out of used
batteries.
▶
Remove any used batteries from the
product as soon as possible.
▶
Before extended periods away from
home, also remove batteries that are still
charged from the product.
▶
Avoid skin or eye contact with leaking
battery fluid.
Operating and installation instructions sensoCOMFORT 0020288151_00