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Maintenance 7
0020147164_04 aroTHERM Installation instructions 25
6.12.3.1 Heat pump setting parameters
To individually set the heat pump, you can adjust certain
parameters in the Configuration menu.
Menu Installer level Configuration
Additional setting data is listed in the appendix.
Heat pump setting parameters ( Page 44)
6.13 Installing the side cladding
C
C
B
A
Install the side cladding.
6.14 Instructing the operator
1. Explain the how the system operates to the operator.
2. Draw particular attention to the safety information,
which the operator must follow.
3. Make the operator aware of the need for regular main-
tenance (maintenance contract).
4. Explain to the operator how to check the system's water
volume/filling pressure.
7 Maintenance
7.1 Observing maintenance intervals
1. Only carry out maintenance work if you are a competent
person.
2. Carry out annual maintenance.
7.2 Preparing for maintenance
7.2.1 Procuring spare parts
The original components of the unit were also certified as
part of the CE declaration of conformity. Information about
available Vaillant genuine spare parts is available by con-
tacting the contact address provided on the reverse of this
document.
If you require spare parts for maintenance or repair work,
use only Vaillant genuine spare parts.
7.3 Instructions before carrying out
maintenance work
Observe the basic safety rules before carrying out mainten-
ance work or installing spare parts.
Danger!
Risk of injury due to unauthorised access
to the coolant circuit.
Escaping coolant may cause freezing if the
exit point is touched.
Only carry out work on the coolant circuit if
you have been trained to do so and if you
have the required protective clothing.
Avoid skin and eye contact with the
coolant.
Switch the system off.
Disconnect the system from the power supply.
Where necessary, disconnect the heating circuit from the
product by using the stop valves.
If you have to replace parts on the heating circuit, you
must first drain the product.
When working on the product, protect all electric com-
ponents from spray water.
7.4 Yearly maintenance
Check that the safety devices are functioning properly.
Check the heating circuit's fill pressure.
Ensure that there are no traces of rust or oil on the
coolant circuit components.
Ensure that the product components are neither worn nor
defective.
Check that all wires sit securely in the connectors.
Check the product's earthing.
Check the heating pump's flow temperature and the set-
tings.
Remove any dust from the electronics box and the in-
verter box.
Clean the ribbed pipe heat exchanger and ensure that air
circulates between the fins and around the product.
Check that the fan rotates freely.
Check that condensate can escape freely from the heat
pump by removing the adaptor underneath the heat
pump.
Clean the product as described in the operating instruc-
tions.
Check that the vibration dampers are correctly seated on
the coolant lines.
25


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