17
Protective zone
This outdoor unit is
fi
lled with R290 (Extremely
fl
ammable gas, safety A3 group per ISO 817). Note that this refrigerant has a
higher density than air. In case of a refrigerant leak, the leaked refrigerant may accumulate near the ground.
Prevent accumulation of refrigerant in any way that is potentially dangerous, explosive or risk suffocation. Prevent refrigerant
from entering the building through building openings. Prevent accumulation of refrigerant in the drain grooves.
A protective zone is de
fi
ned around this outdoor unit. There must be no building openings, windows, doors, light shafts, cellar
entrances, escape hatches,
fl
at-roof windows or ventilation openings in the protective zone.
There must be no ignition sources, such as heat above 360 ºC, sparks, open
fl
ame, plug sockets, light switches, lamps,
electrical switches or other permanent ignitions sources, in the protective zone.
The protective zone must not extend to adjacent buildings or public traf
fi
c areas (boundaries of neighbors, the public road,
neighbor’s private roads, subsidence area, depressions, pump shafts, sewers intakes, waste water shafts and so on.).
In the protective zone, you are not permitted to make any subsequent structural alterations which infringe the stated rules for
the protective zone.
1) Protective zone for ground installation (or
fl
at-roof
installation) at the open areas
A 1000 mm
A
2) Protective zone for ground installation in front of a building
wall
A 2000 mm
B 3000 mm
C 300 mm
D 1000 mm
A
B
D
A
B
C
3) Protective zone for ground installation in a building corner
A 2000 mm
B 2500 mm
C 300 mm
D 500 mm
E 1000 mm
F 500 mm
G 1800 mm
A
B
C
D
E
F
G
4) Protective zone for wall installation in front of a
building wall
A 2000 mm
B 3000 mm
C 300 mm
D 1000 mm
A
B
C
D
The protective zone under the product extends to the
fl
oor.
5) Protective zone for wall installation in a building
corner
A 2000 mm
B 2500 mm
C 300 mm
D 500 mm
E 1000 mm
F 500 mm
G 1800 mm
B
C
D
E
F
G
A
The protective zone under the product extends to the
fl
oor.
