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7 - POSITIONING AND INSTALLATION
50FC 052 - 093
0,6m
This indication is only here to help our customer to identify the
limits of the fl ammability risk.
But there is no risk of explosion linked to the used of A2L refrigerant
due to the machine itself.
Note (the following information is provided by the manufacturer
exclusively for informational purposes. The application of the
following directives relies exclusively upon the user):
According to directives 2009/104/EC and 1999/92/EC, these zones
might be qualifi ed by the user as ATEX Zone based on the user's
own risk analysis for which the user remains solely responsible.
According to the defi nition of Annex I of directive 1999/92/EC,
this zone might be classifi ed Zone 2 because it might be a place
in which an explosive atmosphere consisting of a mixture of air
with fl ammable substances in the form of gas is not likely to occur
in normal operation but, if it does occur, will persist for a short
period only.
In case an additional equipment is necessary (motorized valve,
pump, etc....), it must be:
■ installed out of defi ned potentially fl ammable zone;
■ qualifi ed as a non-ignition source for the fl uid used.
Minimum area for indoor air distribution
(R-454B refrigerant)
The unit with refrigerant R-454B (A2L fl uid) needs a minimum
surface in the room where the air supplied by its indoor circuit will
be distributed, according to EN-378-1:
50FC
020
Refrigerant charge per
7,20
circuit (kg)
Minimum area (m
)
34,5
2
50FC
052
Refrigerant charge per
5,63
circuit (kg)
Minimum area (m
)
21,0
2
Important: It is the customer's responsibility to carry out the risk
analysis of the installation and, as a result of that analysis, to take
the necessary measures according to standard EN-378-1. Consult
the recommendations given in the "A2L rooftop installation guide"
(Nb. 10714).
0,6m
0,6m
028
037
040
045
7,47
9,90
9,90
10,17
37,1
65,2
65,2
68,8
058
062
070
074
086
5,76
5,85
9,00
9,14
9,14
22,1
22,8
53,9
55,5
55,5
These units are equipped as standard with a leak detector that
from a certain concentration of gas (parametrizable) activates
a PROTECTION MODE until the mitigation of the leak (see the
chapter on "Safety elements".
0,6m
Sound Level
These units are designed to work with a low acoustic level. In any
case, the following must be taken into account for the design of
the installation: the outdoor environment for acoustic radiation, the
type of building for the noise transmitted by air, the solid elements
for the transmission of vibrations.
To reduce transmission through solid surfaces to the maximum, it
is very advisable to install shock absorbers between the ground
or structure and the unit frame. If necessary, a study must be
commissioned to an acoustic technician.
Sound power level (LW)
50FF/FC
020
63 Hz
55,2
125 Hz
64,2
250 Hz
71,8
500 Hz
70,2
1000 Hz
72,0
2000 Hz
69,7
4000 Hz
62,6
8000 Hz
59,0
Total dB(A)
77,5
50FF/FC
058
63 Hz
64,5
125 Hz
69,9
250 Hz
77,7
500 Hz
80,1
1000 Hz
79,9
2000 Hz
77,4
4000 Hz
73,4
8000 Hz
68,2
Total dB(A)
85,5
047
Sound pressure level (LP)
10,44
Measurement conditions: in a clear fi eld, measured at a distance
72,5
of 10 metres, directivity 2 and at 1,5 metres from the ground.
093
50FF/FC
020
9,23
Total dB(A)
45,8
56,6
50FF/FC
058
Total dB(A)
53,7
Note: The sound pressure level depends on the installation
conditions and, as such, it only indicated as a guide. Values
obtained according to the ISO 3744 standard.
028
037
040
045
60,8
61,4
60,9
61,3
66,7
68,9
66,1
70,0
74,8
76,1
72,9
76,3
76,7
76,4
76,8
77,1
76,2
76,3
77,5
77,3
73,5
74,3
75,3
74,1
69,2
70,3
70,6
70,4
63,7
65,5
65,8
65,6
82,0
82,5
82,5
83,0
062
070
074
086
64,9
64,8
64,6
64,6
71,5
72,4
71,3
71,4
78,9
79,7
78,4
77,9
80,4
79,9
80,1
80,2
80,2
79,8
80,4
80,6
77,8
77,7
78,3
78,1
73,7
73,8
73,9
74,2
68,6
68,9
69,1
69,4
86,0
86,0
86,0
86,0
028
037
040
045
50,3
50,8
50,8
51,3
062
070
074
086
54,2
54,2
54,1
54,1
047
052
63,1
64,3
71,1
69,6
76,4
77,0
78,3
79,5
78,2
79,4
75,5
77,0
72,2
73,1
67,5
67,9
84,0
85,0
093
099
65,3
66,8
74,0
75,5
79,3
80,8
80,9
82,4
80,7
82,2
77,7
79,2
74,4
75,9
69,6
71,1
86,5
88,0
047
052
52,3
53,1
093
099
54,6
56,1
11
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