13
TECHNICAL DATA AND PERFORMANCE - BASE VERSION (VB)
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Potenza frigo
20
25
30
35
40
45
50
0.8
0.9
1.0
1.1
1.2
1.3
1.4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pot ass TOTALE in raffreddamen
20
25
30
35
40
45
50
COOLING performances
The graphs allow to get the corrective factors to be applied to the nominal performances in order to obtain the real performances in
the selected operating conditions. For the "Operation limits" of the unit refer to the section limits.
The reference nominal condition is:
A35W7
(source : air in 35°C d.b. / plant : water in 12°C out 7°C)
Outlet air temperature (°C D .B .)
A
= 20°C
B
= 25°C
C
= 30°C
D = 35°C
E
= 40°C
F
= 45°C
G
= 50°C
Outlet air temperature (°C D .B .)
A
= 20°C
B
= 25°C
C
= 30°C
D = 35°C
E
= 40°C
F
= 45°C
G
= 50°C
Cooling capacity
Total power input
Outlet water temperature [°C]
Outlet water temperature [°C]
G
G
F
F
E
E
D
D
C
C
B
B
A
A
The standard performances refer to a 5°C temperature difference between the water entering and leaving the heat exchanger and to operation of the unit with all fans at
nominal or maximum speed. A 0.44 x 10
-4
m
2
K/W fouling factor has also been considered with the unit installed at zero meters above sea level (Pb = 1013mbar).
A35W7
A35W7