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00U07352240-A_ EN
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■ Specific warnings on the R32 refrigerant
The R32 refrigerant:
- is odourless;
- is slightly inflammable (A2L), but only in the presence of flames;
- Risk of explosion at air concentrations between the lower and upper flammability levels of the
fluid, see refrigerant data sheet above.
It is essential to follow the following guidelines:
- do not smoke near to the appliance ;
- put up no smoking signs near to the appliance ;
- ensure that it is installed in a well-ventilated area
- do not pierce or burn the appliance ;
- do not position the appliance near to ignition sources, such as naked flames, electric heaters,
etc.;
- any special work or repairs to the appliance must be carried out by specialised technicians or
qualified personnel;
■ R32 refrigerant charge
The procedures described below must only be performed by specialised technicians or
qualified personnel
:
- ensure that other types de refrigerant do not contaminate the R32;
- keep the gas bottle in a vertical position when loading it;
- put a suitable label on the unit after loading it;
- do not load more refrigerant gas than needed;
- before loading, search for leaks before carrying out an operating test. This operation has two
purposes, to control the quantity of refrigerant loaded and to check the circuit for leaks,
- after the operating test, we recommend carrying out another leak test,
■ Eliminating the R32 refrigerant
Follow the standardised procedures
for collecting refrigerants, which may only be carried
out by specialised technicians or qualified personnel, and return it to the supplier
.
■ Precautions related to the installation of the refrigerant
If local construction codes or safety standards don’t exist, the information shown below are
taken from the standard EN378: 2016 may be used for information; they may be used as a
guide for the safe use of machines that use R32 as a refrigerant.
This outdoor unit must not be installed in a place that can the general public or untrained,
qualified or approved persons can access.
It is designed to be installed outdoors, in open air. A shelter or alcove in which at least one of
the longest walls is open to the outside air by louvers having a free area of 75% and covering
at least 80% of the wall (or the equivalent if more than one wall is open to the outside air), is
considered to be open to the outside air.
It must be located so that no refrigerant leaks can enter the building and/or endanger people
and property. Therefore:
It must not be possible for the refrigerant to spill into a ventilation duct, under a door,
hatch or similar opening in case of a leak. For this reason, the installer must ensure that
there is a distance of at least 1m between the unit and any such opening. When a shelter
is provided for the refrigerant appliance in the open air, this shelter must be equipped
with a natural or forced ventilation device.
For refrigerant appliances installed outdoors in a location where a release of refrigerant
may stagnate, e.g. below ground level, the installation must meet the requirements for
gas detection and machine room ventilation.
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