6
Vertical package air conditionners
Location designation
Before moving the unit, make sure that all panels are fastened in
place. Lift and lower with care. When choosing the location, in any
way the selected fashion, the following precautions have to be taken
into consideration:
- It is mandatory to comply with norm EN 378-3 on Safety and
Environmental Requirements. Part 3: “In situ” installation and
protection to people.
- It is necessary to check that the structure supports the unit’s weigh
(please see weighs in technical characteristics sheet).
- The area where the unit will be located must be perfectly accessible
for cleaning and maintenance operations. Leave enough space so
that air can circulate around the unit (please check minimum free
space for maintenance).
- Foresee appropriate bumping devices in all the installation so that
noise and vibration transmission is avoided.
For being a unit designed to operate indoor, with ducted discharge
and return, both in the internal circuit as in the external circuit, the
following aspects should be taken into account:
• All models can be installed on the fl oor or over a mount or steel
profi le (in order to avoid the transmission of vibrations, it is
recommended to mount anti-vibratory supports).
•
Important
: In any case, check that the unit remains perfectly
levelled.
• If in the internal and/or external circuit the air return is not ducted, it
is necessary to provide for grilles of appropriate sizes in the plenum
formed by the roof, forged and walls in order that the circuit makes
the aspiration of the return air.
7. L
OCATION
AND
ASSEMBLING
Anchorage for antivibrators
A
B
Minimum free space for commissioning and
maintenance operations
E
D
A
B
C
Sound level
These units are designed to work with a low acoustic level. In any
case, the design of the installation the outer environment, the kind
of building for the noise transmitted in the air and the solid elements
for the vibration transmission must be taken into consideration for the
acoustic radiation.
If necessary, commission a study to an acoustic technician.
C) The
sound pressure level
of the unit, with the ducted return and
supply connections, measured at a distance of 5 metres, in open fi eld,
directivity at 2 and 1.5 metres from the ground is:
B) The
sound power level
in the
indoor fan
outlet to be taken into
account for the silencer calculation:
A) The
sound power level
in the
outdoor fan
outlet to be taken into
account for the silencer calculation:
Note: The sound pressure level depends on the installation conditions
and, as such, is only indicated as a guide.
50NZ/NF
A (mm) B (mm)
080 / 090
1.116
695
120 / 160
1.382
744
180
2.103
695
240 / 320
2.646
744
50NZ/NF
A (mm)
B (mm)
C (mm)
D (mm)
E (mm)
080
1.000
600
900
600
1.500
090
1.200
600
900
600
1.500
120
1.100
750
900
750
1.500
160
1.100
750
900
750
1.500
180
1.200
600
900
600
1.500
240
1.200
750
900
750
2.000
320
1.500
750
900
750
2.000
50NZ/NF
080
090
120
160
180
240
320
dB(A)
74,4
76,3
81,9
83,6
79,3
84,9
86,6
50NZ/NF
080
090
120
160
180
240
320
dB(A)
79,4
75,1
77,5
80,2
77,8
83,1
79,0
50NZ/NF
080
090
120
160
180
240
320
dB(A)
65,7
67,9
71,4
74,0
70,8
75,2
76,0
Note: Diameter antivibration anchoring: 18 mm.
Summary of Contents for 50NF
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