M6G240F7-02 14/03/08
pag
39
SOUND LEVELS
Sound Power Level (dB)
Size
Octave band (Hz)
63
125
250
500
1000
2000
4000
8000
Sound
pressure
level
dB(A)
Sound
power
level
dB(A)
82
80
75 78 73 70 66 58 52 60
75
102
79
74 77 73 70 66 60 51 60
75
122
79
74 77 72 70 67 61 52 60
75
162
86
79 75 77 74 66 61 56 61
78
182
86
79 74 76 74 68 63 57 62
78
222
86
79 77 78 74 69 61 56 62
79
262
88
81 78 79 77 72 66 58 64
81
302
88
81 79 80 75 72 63 56 64
81
Notes:
Measures according to ISO 3744 regulations,
with respect to the EUROVENT 8/1
certification.
the sound levels refer to the unit at full load, in
the rated test conditions.
The sound pressure level refers to a distance
of 1m from the external surface of the
units operating in an open field.
data referred to the following conditions :
internal exchanger water = 12/7°C
INTERNAL EXCHANGER PRESSURE DROP
20
30
40
50
60
70
80
1,0
1,5
2,0
2,5
3,0
3,5
4,0
4,5
5,0
Q (l/s)
DP
(
kP
a
)
222
82
302
61
122
102
262
61
182
162
UNIT WITHOUT HYDRAULIC
CIRCUIT COMPONENTS
DP = PRESSURE DROP
Q = WATER FLOW
GRANDEZZA 82
102
122
162
182
222
262
302
Portata minima
[l/s]
0,70
0,80
0,85
1,00
1,11
1,51
1,74
1,95
Portata massima
[l/s]
1,52
1,80
2,85
2,71
3,05
4,05
4,65
5,00
CORRECTION FACTOR FOR ANTIFREEZE SOLUTIONS
% ethylene glycol by weight
5%
10%
15%
20%
25%
30%
35%
40%
Freezing
temperature
°C -2,0 -3,9 -6,5 -8,9 -11,8 -15,6 -19,0 -23,4
Safety
temperature
°C 3,0 1,0 -1,0 -4,0 -6,0 -10,0 -14,0 -19,0
Cooling
Capacity
Factor
Nr 0,995 0,990 0,985 0,981 0,977 0,974 0,971 0,968
Compressor
input
Factor
Nr 0,997 0,993 0,990 0,988 0,986 0,984 0,982 0,981
Internal
exchanger
Glycol
solution
flow
Factor
Nr 1,003 1,010 1,020 1,033 1,050 1,072 1,095 1,124
Pressure
drop
Factor
Nr 1,029 1,060 1,090 1,118 1,149 1,182 1,211 1,243
The correction factors shown refer to water and glycol ethylene mixes used to prevent the formation of frost on the exchangers in the water
circuit during inactivity in winter.
FOULING CORRECTION FACTOR
INTERNAL EXCHANGER
m² °C/W
F1
FK1
0.44 x 10^(-4)
1,00
1,00
0.88 x 10^(-4)
0,97
0,99
1.76 x 10^(-4)
0,94
0,98
The cooling performance values provided in the tables are based on the external exchanger having clean plates (fouling factor 1). For different
fouling factor values, multiply the performance by the coefficients shown in the table.
F1 =
Cooling capacity correction factors
FK1 =
Compressors input power correction factors
INTEGRATED HEATING CAPACITIES
Anternal exchanger inlet air temperature °C ( D.B.)
-5 / -5.4
0 / -0.6
5 / 3.9
OTHERS
Heating capacity multiplication coefficient
0,89
0,88
0,94
1
To obtain the integrated heating capacities (the real heating capacity considering the defrost cycles too), multiply the kWt value in the heating
performance tables by the following coefficient.
EXCHANGER PRESSURE DROP LIMIT. WAR-NING:
DON'T USE OVER THIS LIMIT
EXCHAMGER PRESSURE DROP LIMIT. WARNING:
DON'T USE BELOW THIS LIMIT
Minimum flow
Maximum flow
SIZE
