Innova Stone Monoblock M1, Руководство по установке, Страница: 53 / 72

53
MAINTENANCE
• electric draw
• tightness of connections
• that there is no damage or excessive wear on the electrical
cables
• the seals and sealing materials have not deteriorated to
such an extent that they are no longer suitable for pre-
venting the development of flammable atmospheres in-
side
• correct fixing of the cable clamps
• safety devices
Mechanical checks
Check:
• the tightness of the screws, the compressors and the elec-
trical box, the external panelling of the unit
• the conditions of the structure
Poor fastenings cause abnormal noises and vibrations.
Treat any rusty parts with paints suitable to eliminate or
reduce the rust.
Cleaning
• clean the battery
• clean the condensate drip tray
• clean cosmetic covering elements
Use brushes or tools that do not involve risks of perforating
the exchangers or igniting flames to clean the exchangers.
Refrigeration checks
Make sure that:
• the marking on the equipment must remain visible and
legible. Illegible markings and graphics must be corrected
• the thermodynamic values are within the nominal param-
eters
Under the provisions of Directive 517/2014/EU, plants con-
taining more than 5 equivalent tonnes of CO2 (7.41 kg of R32
gas or 2.39 kg of R410a gas) must be checked for leaks once
a year, using either direct or indirect methods, by personnel
certified under EU Regulation 2015/2067.
The company responsible for maintenance must keep a log-
book in which the following information is recorded:
• the technician who performed the maintenance or repair,
• the dates and results of the checks,
• the quantity and type of fluorinated gas used,
• any quantities added or recovered during servicing, repair
or final disposal.
If needed, a form is available at "System log box" .
Filling the refrigeration circuit with a refrigerant other than
the one indicated is forbidden. Using a different refriger-
ant gas can cause serious damage to the unit.
Cleaning the condensate drip tray
If necessary, the condensate trays can be cleaned through
the slots provided on the unit.
To clean:
– remove the cover caps
– clean through the slots with a vacuum cleaner
After the operation:
– replace the cover caps
Check if there are no leaks from the cover plugs.