OPERATINE LIMITS (COOLING)
SIZE 17 21 31 41 51 61 71 81 91 101 121
EXSTERNAL EXCHANGER
Min. water inlet temperature
1
°C 15
Min. water inlet temperature 2 °C 6
Max water outlet temperature 1 °C 55
Min. water outlet temperature
°C 28
Water thermal head (min / max)
°C 5/16
INTERNAL EXCHANGER
Max water inlet temperature °C 24
Max water outlet temperature
°C 18
Max water outlet temperature 3 °C 5
Water thermal head (min / max)
°C 3/8
OPERATINE LIMITS (HEATING)
EXSTERNAL EXCHANGER
Max water outlet temperature
°C 18
Min. water outlet temperature 3 °C 5
INTERNAL EXCHANGER
Max water outlet temperature 4 °C 55
Water thermal head (min / max)
°C 3/8
internal exchanger = source side exchanger external exchanger = utility side exchanger
(1) standard unit
(2) The limit is referred to the use of a modulating or pressostatic valve, (3) antifreeze set-point
at the external exchanger inlet. (4) External exchanger inlet water = 10°C
SOUND LEVEL
Sound Power Level (dB)
size
Octave band (Hz)
63 125 250 500 1000 2000 4000 8000
Sound
pressare
level
dB(A)
Sound
power
level
dB(A)
17 78 69 55 46 47 40 34 29 43 57
21 78 69 56 48 47 38 35 32 43 57
31 79 67 57 51 49 41 41 35 44 57
41 78 70 59 50 47 43 38 34 44 58
51 77 69 61 54 49 41 39 36 45 58
61 78 67 62 55 54 46 43 38 46 60
71 77 72 65 62 53 47 44 38 49 63
81 78 73 66 63 54 48 45 39 50 64
91 81 68 68 65 56 52 49 45 51 65
101 79 75 68 63 56 55 49 44 52 66
Measures according to ISO 3744 regulations,
with respect to the EUROVENT 8/1
certification.
The sound pressure is measured at 1 m from
the external surface of the unit in open
field conditions.
data referred to the following conditions :
internal exchanger water = 12/7°C
external exchanger water = 30/35°C
121 80 74 70 65 58 55 51 45 53 67
PUMP PERFORMANCE 1
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5
Q (l/s)
DP (kPa)
5131-41
61
17-21
71 81 91 121101
UTILITY SIDE PUMP (STANDARD)
Q[L/S]= WATER-FLOW RATE
DP[KPA]=USEFUL DISCHARGE HEAD
THE HEADS ARE INTENDED AS AVAILABLE
AT THE UNIT CONNECTIONS
PUMP PERFORMANCE 2
10
20
30
40
50
60
70
80
90
100
110
120
0.10.20.30.40.50.60.70.80.91.01.11.21.31.41.51.61.71.81.92.0
Q (l/s)
DP (kPa)
51 6117-21
71
81
91
31-41
SOURCE SIDE CIRCULATING PUMP
(OPTIONAL)
Q [L/S] = WATER FLOW-RATE
DP [KPA] = USEFUL DISCHARGE HEAD
Configuration not available for sizes 101 and
121
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