Danger And Safety Zones - MAXA i-290 0106 Installer Manual

In the event of side-by-side units, the minimum Lmin distance
between them is 1 m
Covering with canopies or placing near plants or walls should be
avoided to prevent air recirculation.
In the event of winds stronger than 2.2 m/s the use of wind barriers is
recommended.
5.5 DANGER AND SAFETY ZONES
The i-290 series units contain R290 refrigerant gas. The density of this gas is greater than that of air, so in the event of leakage it tends to disperse
and stratify, accumulating in niches, depressions in the ground or underground regions.
It is mandatory to comply with the danger and safety zones given in this manual, when installing the units. These zones have been designed in
accordance with EN 60079-10-1, estimating an appropriate refrigerant loss, in order to guarantee the safety of the units in the installation area.
A danger zone is defined as a area around the machine in which, in the event of a leakage of refrigerant gas, a flammable atmosphere is formed
for a short time, within which it is necessary to implement all the precautions described in the manual. In the absence of specific standards or
regulations, when using the unit in an industrial or working environment, it is advisable to carry out the classification of places with explosion
hazards considering the ATEX Directive 1999/92 (Directive 89/391). There must NOT be any sources of ignition in the danger zones, including:
• flammable gases and sprays, self-igniting powders;
• electrical equipment that is not suitable for use in potentially explosive areas (zone 2 according to Directive 89/391);
• naked flames, heated surfaces (maximum surface temperature of 360°C) and processing by heat; smoking is prohibited, even for electronic
cigarettes;
• sparks, electrostatic charges, direct and indirect lightning effects, eddy currents and cathodic protection;
• ignition sources due to remote processes (ionising and non-ionising radiation);
• permanent electrical sources (switches, lamps, etc.) or other possible triggers;
In addition, danger zone must NOT:
• include potentially dangerous areas or elemts such as wells, manholes, openings to the sewage system and other openings to underground
places and premises (e.g. garages), river drains, power lines, flammable deposits, electrical installations, etc.;
• include doors, windows or glass panes, to prevent the possible return of the gas inside the building;
• extend towards neighbouring residential properties, parking areas, public access sites, roads or railways.
i-290
Inverter air/water heat pumps with axial fans
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