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On the outdoor unit:
Check the following points at least once per year:
• External coil
The external coil of the Audax.DK4 may be obstructed by dirt, dust, leaves, etc...
It is recommended to clean the coil when necessary (at least once a year) to avoid reaching too high or too low pressures that would de-
crease the performance of the outdoor unit.
• Water Pressure
Check that the system static pressure (with system cold and after refilling the system by means of the filling valve) is between 1 and 1.2
bar.
• Water filter
Clean the system water filter.
Handle the water filter with care. Do not use excessive force when reinserting the water filter in order to avoid damaging the
mesh of the filter.
• Safety valve
Visually check that the drain of the water safety valve is not clogged.
The points to be checked are:
- the flow rate of the safety valve is optimal;
- if there is dirty water coming from the safety valve:
- open the valve until the discharged water no longer contains dirt;
- wash the system and install an additional water filter (possibly a magnetic cycloidal filter).
We recommend performing this maintenance multiple times per year.
• Electrical part
Perform a visual check of the electrical part of the outdoor unit checking the electrical connections and the wiring.
In case of faults on the wiring or electrical connections, the replacement must be performed by qualified personnel (for example the
Authorised Technical Assistance Centre).
• Antifreeze protection valve
Replace the antifreeze protection valve every 3-7 years (according to the quality of the water).
Replace the antifreeze protection valve if it does not close properly.
• Vacuum breaker valve
Disassemble the vacuum breaker valve and clean the cartridge with water.
Keep the area around the unit clean.
The coolant inside the unit is slightly flammable.
If the refrigerant were to come out, coming into contact with the flame of a burner, a heater or a
gas kitchen, it may cause a fire or form noxious gas.
Switch off the flammable heating devices, air the room and contact an authorised company
(e.g. the Authorised Technical Assistance Centre).
DO NOT use the unit until a qualified technician has repaired the leaking component that is
leaking coolant.
• DO NOT perforate or burn the components of the coolant cycle.
• DO NOT use cleaning materials or tools to accelerate the defrosting process other than those recommended by the manufac-
turer.
• Keep in mind that the coolant in the system is odourless.
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