Maintenance Instructions; General Maintenance - Argo AUAH Notice D'installation

7.4 - STARTING
• Turn on the system five hours before start-up in order to preheat the compressor housing.
• The system can only be started by authorized service centers.
• Fill in the required starter form attached.

8 - MAINTENANCE INSTRUCTIONS

• Before doing any work on the installation, make sure it is switched off and all power supplies locked
out. Before disconnect the outdoor unit and then Aqua Unit or contemporally.
• Also check that the capacitors are discharged.
• Any work must be carried out by personnel qualified and authorised to work on this type of machine.
• Prior to all maintenance and servicing on the refrigerating circuit, one must first shut down the unit
then wait a few minutes before installing temperature or pressure sensors. Certain equipment, such
as the compressor and piping, may reach temperatures above 100°C and high pressures may lead
to serious burns.

8.1 - GENERAL MAINTENANCE

All equipment must be properly maintained in order to provide optimum performance over time . Faulty maintenance
can result in the cancellation of the product guaranty . Depending on the products, maintenance operations consist
in the cleaning of filters (air, water), internal and external exchangers, casings, and the cleaning and protection
of condensate tanks . Treating odours and the disinfection of room surfaces and volumes also contributes to the
cleanliness of the air breathed by users .
• Carry out the following operations at least once a year (the frequency depends on the installation and
operating conditions):
- Check for leaks on the refrigerating circuit .
- Check for traces of corrosion or oil stains around the refrigerating components .
- Inspect the composition and the condition of the coolant and check that it does not contain traces of
refrigerating fluid .
- Cleaning the exchangers.
- Checking the wear parts .
- Checking the operating instructions and points .
- Check the safety devices .
- De-dusting the electrical equipment cabinet .
- Checking that the electrical connections are secure .
- Checking the earth connection .
- Check the hydraulic circuit (clean the filter, water quality, purge, flow rate, pressure, etc .) .
8.2 - TROUBLESHOOTING RECOMMENDATIONS
• All maintenance and servicing operations on the refrigerating circuit must be conducted in accordance with
standard trade practices and safety rules: recovery of the refrigerant, inert shielded (nitrogen) brazing, etc...
• All brazing operations must be conducted by qualified personnel.
• This unit is equipped with pressurised equipment, for example piping.
Use only genuine parts listed in the spare parts list for replacing defective refrigeration components .
• Leak detection, in the case of pressure testing:
- Never use oxygen or dry air, as the risk of fire or explosion is present.
- Use dehydrated nitrogen or a nitrogen and refrigerant mix indicated on the manufacturer's plate.
- For units equipped with pressure gauges, the test pressure must not exceed the gauges' maximum
allowable pressure rating .
• All part replacement with other than genuine parts, all modifications of the refrigerating circuit, all replacement
of refrigerant by a fluid other than that indicated on the manufacturer's plate, all use of the unit outside the
application limits defined in the documentation, shall result in the cancellation of PED EC marking compliance
which shall fall under the liability of the individual who carried out these modifications and the void warranty .
• The technical information, relative to the safety requirements of the various applicable directives, is indicated
on the manufacturer's plate of the unit and mentioned on the 1
IMPORTANT NOTE
page of this manual .
st
35
EG