Variable air volume controllers
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75
VBC
Air flow Pressure
drop
ΔT air at T
water
60/40°C
Water
flow
rate
Water
speed
Pressure
drop Power
ΔT ait at
T water
90/70°C
Water
flow
rate
Water
speed
Pressure
drop Power
(m
3
/h)
(Pa)
(K)
(l/s)
(m/s)
(kPa)
(kW)
(K)
(l/s)
(m/s)
(kPa)
(kW)
100-3 0.04
39
25.9
0.02
0.24
0.85
1.35
47.4
0.03
0.45
2.65
2.46
125-3 0.06
17.2
33.4
0.03
0.47
5.33
2.6
56.2
0.05
0.8
14
4.38
160-3 0.1
41
29.3
0.05
0.68
11
3.8
49.7
0.08
1.17
29.5
6.46
200-3 0.15
29
30.7
0.07
0.54
5.36
6
52.1
0.13
0.92
14.1
10.17
250-3 0.25
31.2
30.5
0.12
0.59
6.23
9.93
51.6
0.21
1.02
16.2
16.8
315-3 0.39
35
30.2
0.19
0.69
8.28
15.3
51
0.32
1.17
21.4
25.87
400-3 0.63
36.3
30.3
0.03
0.74
10.10 24.74
50.8
0.51
1.26
26.1
41.6
Coil calculation 3 rows
