Power level and sound pressure level dB(A)
A) The sound power level in the outdoor fan to be taken into account for the silencer calculation:
50HB/HF
55
65
80
90
120
160
dB(A)
80,5
82,7
74,4
76,3
83,5
83,3
B) The sound power level in the indoor fan to be taken into account for the silencer calculation:
50HB/HF
55
65
80
90
120
160
dB(A)
72.0
77.4
80.4
77,1
79,2
77,1
C) The sound pressure level of the unit, with the return and supply connections ducted, measured at a distance of 5 meters, in
open field, the directivity at 2 and 1.5 meters from the earth is:
50HB/HF
55
65
80
90
120
160
dB(A)
69.3
71.6
69.4
70.8
70.7
71.2
Note: The sound pressure level depends on the installation conditions and, as such, it only indicated as a guide.
AIR TREATMENT
Unit configuration
■■ Casing
-- Casing made of galvanised steel metal with polyester
paint, colour RAL 7035, dried in oven and thermally
isolated
-- Self-supporting frame and and fan access panels,
cooling circuit and electric panel
■■ Outdoor circuit
-- Centrifugal fan with coupling by pulleys and belts
-- Anti-bird grid, in aspiration
-- Condensates drain pan with asphaltic paint Independent drain
-- Copper pipe and aluminium fins coil
■■ Indoor circuit
-- Centrifugal fan with coupling by pulleys and belts
-- Reusable air filter
-- Condensate collection pan. Independent drain
-- Copper pipe and aluminium fins coil
■■ Cooling circuit
-- Scroll compressor, assembled over shock absorbers Thermal protection
-- Thermostatic expansion valve with outdoor pressure
external equalisation
-- Four-way valve for cycle inversion and crankcase
heater (in heat pump units)
-- Anti-acid dehydrator filter
768
■■ Protections
-- High pressure pressostat
-- Low pressure pressostat
-- Automatic switch in the control circuit
-- Magnetothermic protection switches for the
compressor and fan motor power line
-- Main door switch
-- Fan thermal protection
-- Compressor discharge temperature control
■■ Electric panel
-- Complete and fully wired electrical panel
-- Transformer for power supply without neutral
-- Main earth connection
-- Compressor and fan motors contactors
C
A
R
R
I
E
R
2
0
1
6
/
2
0
1
7