fluidra 74139, Owner'S Manual

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3
Area check

Before starting work on systems containing flammable refrigerants, safety checks must be carried out to
guarantee a minimal ignition risk.
Work procedure

The work must be carried out according to a controlled procedure in order to reduce the risks of releasing a
flammable gas or vapour while working.
General work area

All maintenance staff and other personnel working in the surrounding area must be made aware of the work
carried out. Work conducted in enclosed areas must be avoided.
Check for the presence of refrigerant

The area must be analysed using a suitable refrigerant detector before and during work so that the technician is
informed of the presence of a potentially toxic or flammable atmosphere. Check that the leak detection
equipment used is suitable for use with all refrigerants concerned, i.e. that it does not cause a spark, is
correctly isolated or is entirely safe.
Check for the presence of a fire extinguisher

If work must be carried out on the cooling equipment or any part associated therewith at a certain
temperature, suitable fire extinguishing means must be within reach. Place a dry chemical fire extinguisher or
CO
2
fire extinguisher near the work area.
No source of ignition

No person carrying out work on a cooling system involving exposing the piping may use any ignition source,
which could create a fire or explosion risk. All possible ignition sources, in particular cigarettes, must not enter
within a sufficient perimeter of the installation, repair, removal or disposal site, in the event that refrigerant
could be released into the surrounding space. Before starting the work, the area around the equipment must
be examined to check for all fire or ignition risks. "No smoking" signs must be displayed.
Area ventilation

Before accessing the unit in any manner whatsoever with the intention of performing any maintenance task,
check that the area is open and well-ventilated. Suitable ventilation must be provided throughout the
maintenance task to allow any refrigerant that could be released into the atmosphere to be safely dispersed.
Refrigeration equipment check

The manufacturer's recommendations in terms of care and maintenance must always be complied with. When
replacing electric components, check that components used are of the same type and category as those
recommended/approved by the manufacturer. When in doubt, contact the manufacturer's technical
department for assistance.

The following checks must be applied to installations using flammable refrigerants:
-the markings on the equipment must remain visible and legible; any illegible markings or signs must be rectified;
-the hoses or components of the cooling circuit are installed in a position where they are unlikely to be exposed to
any substance capable of corroding the components containing refrigerant, unless the components are made from
materials that are typically corrosion-proof or correctly protected from such corrosion.
Electric component check

The repair and maintenance of electric components must include initial safety checks and component
inspection procedures. If a defect capable of jeopardising safety arises, no power supply must be connected to
the circuit until the problem has been completely resolved. If the defect cannot be rectified immediately and if