0020213394_05 Installation and maintenance instructions
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11.3
Querying the fault memory
Menu
→
Installer level Fault list
The product has a fault memory. You can use this to query
the last ten faults that occurred in chronological order.
If a DCF sensor is connected, the date on which the fault
occurred will also be displayed.
Display views
–
Number of faults that occurred
–
The fault currently selected with fault number
F.xxx
11.4
Resetting the fault memory
1.
Press
(
Delete
).
2.
Confirm that you wish to clear the fault memory by
pressing
(
Ok
).
11.5
Restarting the installation assistant
You can restart the installation assistant any time by calling it
up manually in the menu.
Menu
→
Installer level
→
Start inst. assistant
11.6
Using check programmes
Menu
→
Installer level
→
Test menu
→
Check pro-
grammes
You can use this function to start check programmes.
Note
If a fault has occurred, the check programmes are
not run.
You can terminate the check programmes by pressing
(
Cancel
) at any time.
11.7
Carrying out the actuator test
Menu
→
Installer level
→
Test menu
→
Sensor/actuator
test
You can check that the components of the heating installa-
tion are functioning correctly using the sensor/actuator test.
You can actuate more than one actuator at a time.
If you do not select anything to change, you can have the
current control values for the actuators and the sensor val-
ues displayed.
You can find a list of the sensor characteristic values in the
appendix.
Characteristic values, external cylinder temperature sensor
(
Characteristic values, internal temperature sensors
(refrigerant circuit) (
Characteristic values for the VRC DCF outdoor temperature
sensor (
11.8
Electric back-up heater circuit breaker
A circuit breaker is used to secure the internal electric back-
up heater against short circuits. If the circuit breaker has
been triggered, the electric back-up heater remains switched
off until the short circuit has been eliminated and the circuit
breaker in the electronics box has been manually reset.
11.8.1 Resetting the circuit breaker in the electric
back-up heater
1.
Check the supply line to the power supply PCB.
2.
Check that the power supply PCB is working correctly.
3.
Check the connection cables for the electric back-up
heater.
4.
Check that the electric back-up heater is working cor-
rectly.
5.
Eliminate the short circuit.
6.
Reset the circuit breaker in the electronics box.
12 Inspection and maintenance
12.1
Inspection and maintenance information
12.1.1 Inspection
The inspection is intended to determine the actual condition
of a product and compare it with the target condition. This is
done by measuring, checking and observing.
12.1.2 Maintenance
Maintenance is required in order to eliminate any deviations
between the actual condition and the target condition. This is
normally done by cleaning, setting and, if necessary, repla-
cing individual components that are subject to wear.
12.2
Procuring spare parts
The original components of the product were also certified
by the manufacturer as part of the declaration of conformity.
If you use other, non-certified or unauthorised parts during
maintenance or repair work, this may result in the product no
longer meeting the applicable standards, thereby voiding the
conformity of the product.
We strongly recommend that you use original spare parts
from the manufacturer as this guarantees fault-free and safe
operation of the product. To receive information about the
available original spare parts, contact the contact address
provided on the back page of these instructions.
▶
If you require spare parts for maintenance or repair
work, use only the spare parts that are permitted for the
product.
