
11
Minimum area for indoor air distribution
The unit with refrigerant R-454B (A2L fluid) needs a minimum
surface in the room where the air supplied by its indoor circuit will
be distributed, according to EN-378-1:
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).
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”.
50FC 020 028 037 040 045 047
Refrigerant charge per
circuit (kg) comming soon 9,9 10,2 10,4
Minimum area (m2) comming soon 65,2 68,8 72,5
50FC 052 058 062 070 074 086 093
Refrigerant charge per
circuit (kg) comming soon 9,1 9,1 9,2
Minimum area (m2) comming soon 55,5 55,5 56,6
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)
Sound pressure level (LP)
Measurement conditions: in a clear field, measured at a distance
of 5 metres, directivity 2 and at 1,5 metres from the ground.
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.
50FF/FC 020 028 037 040 045 047
Total dB(A) 51,0 55,5 56,0 56,0 56,5 57,5
50FF/FC 052 058 062 070 074 086 093
Total dB(A) 58,3 58,8 59,3 59,3 59,1 59,1 59,6
50FF/FC 020 028 037 040 045 047
63 Hz 55,2 60,8 61,4 60,9 61,3 63,1
125 Hz 64,2 66,7 68,9 66,1 70,0 71,1
250 Hz 71,8 74,8 76,1 72,9 76,3 76,4
500 Hz 70,2 76,7 76,4 76,8 77,1 78,3
1000 Hz 72,0 76,2 76,3 77,5 77,3 78,2
2000 Hz 69,7 73,5 74,3 75,3 74,1 75,5
4000 Hz 62,6 69,2 70,3 70,6 70,4 72,2
8000 Hz 59,0 63,7 65,5 65,8 65,6 67,5
Total dB(A) 77,5 82,0 82,5 82,5 83,0 84,0
50FF/FC 052 058 062 070 074 086 093
63 Hz 64,3 64,5 64,9 64,8 64,6 64,6 65,3
125 Hz 69,6 69,9 71,5 72,4 71,3 71,4 74,0
250 Hz 77,0 77,7 78,9 79,7 78,4 77,9 79,3
500 Hz 79,5 80,1 80,4 79,9 80,1 80,2 80,9
1000 Hz 79,4 79,9 80,2 79,8 80,4 80,6 80,7
2000 Hz 77,0 77,4 77,8 77,7 78,3 78,1 77,7
4000 Hz 73,1 73,4 73,7 73,8 73,9 74,2 74,4
8000 Hz 67,9 68,2 68,6 68,9 69,1 69,4 69,6
Total dB(A) 85,0 85,5 86,0 86,0 86,0 86,0 86,5
Foresee appropriate damping devices in these fixings to
ensure that noise and vibration transmission is avoided
(consult the reactions in the support in paragraph 7.6).
Preparation of the ground
It is necessary to ensure that the surface where the unit is going
to be installed in completely flat. Any defect in the preparation of
the unit support surface translates into stresses on the structure,
which may result in its deformation. The unit must be perfectly
level when installed.
These units can be installed on the floor or on a brick curb or
steel profile. Based on the fixing solution defined in the installation
project, it will be necessary to plan the placement in the base of
threaded rods in the expectation that the unit supports can be fixed
later on. To do so, it is recommended that a template be made
with the heights corresponding to the fixings.
Removing forklift guards
On units with lower supply and return, the fork-lift truck guards
must be removed. This is also the case when the units are to be
connected onto a roofcurb.
These guide rails are designed to be removed from both sides of
the unit, as required. They are secured to the unit using 4 clamping
pieces with M8 screws.
Attention: a free space equal to the width of the machine is
required for revoming the rails, bigger than the “Recommended
service clearance”.
Important: the transport guards also must be removed before
installling. These guards are fixed with M4.8 self-tapping screws.
7 - POSITIONING AND INSTALLATION
Clamping piece and M8 screw
Transport guards
Forklift guards