Sound levels (SC)
Acoustic conguration: compressor soundproong (SC)
Size
Sound power level (dB) Sound
power
level
Sound
pressure
level
Octave band (Hz)
63 125 250 500 1000 2000 4000 8000 dB(A) dB(A)
352 90 88 87 84 78 74 66 59 85 67
402 90 87 86 84 79 75 67 59 85 67
432 90 88 87 85 80 77 68 59 86 68
452 91 89 87 85 81 75 68 60 86 68
502 91 89 88 86 81 76 68 60 87 68
552 92 89 89 86 82 77 69 61 88 69
602 91 89 88 86 83 77 69 60 88 69
702 93 91 90 88 84 78 70 62 89 70
802 93 91 90 88 84 78 70 62 89 70
Sound levels refer to full load units, in test nominal conditions. The sound pressure level refers to 1 m. from the unit outer surface operating in open eld.
Measures according to UNI EN ISO 9614-2 regulations, with respect to the EUROVENT 8/1 certication.
Data referred to the following conditions:
internal exchanger water = 12/7°C
outdoor air temperature 35°C
Internal exchanger pressure drops
To the internal exchanger pressure drops must be added the pressure drops of the mechanical steel mesh strainer that must be placed on the water input line. It is a
device compulsory for the correct unit operation, and it is available as Clivet option. (See the HYDRONIC ASSEMBLY ACCESSORIES). If the mechanical strainer is selected
and installed by the Customer, it is forbidden the use of lters with the mesh pitch higher than 1,6 mm, because they can cause a bad unit operation and also its serious
damaging.
Admissible water ow rates
Min. (Qmin) and max. (Qmax) water ow-rates admissibles for the correct unit operation.
Size
352 402 432 452 502 552 602 702 802
Qmin [l/s] 3,2 3,6 3,9 3,9 4,4 4,4 4,9 5,5 6,1
Qmax [l/s] 9,0 10,2 11,1 11,1 12,2 12,2 13,5 15,1 16,6
The pressure drops on the water side are calculated by
considering an average water temperature at 7°C
Q = Water ow rate (l/s)
DP = Pressure drop [kPa]
The water ow rate must be calculated with the following
formula
Q [l/s] = kWf / (4,186 x DT)
kWf = Cooling capacity in kW
DT = Temperature dierence between inlet / outlet water
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