User Manual

29
Cooling coil Reheating coil
2 Determine minimally required differential pressure Δp
min
(from data sheet)
Cooling coil
VPF43.50F16
2.5 3.2 3.8 4.5 5.3 6 9
16 m³/h nominalVPF43.50F16
12 156.8 7.5 8.3 9.8 10.5 11.3 12.8 13.5 14.3
Dial Min. 0.2 0.4 0.6 0.8 1 2 3 41.2
V [m³/h]
.
Δp
min
[kPa] 6.5 6.5 6.5 6.8
1.4
7.1
1.6
7.4
1.8
7.7 8.0
2.2
8.8
2.4
9.6
2.6
10.4
2.8
11.2
3.4
15.2
3.6
16.8
3.8
18.5 2012.0
32
13.5
Reheating coil
VPP46.32F4Q
550 800 910 1110 1320 1520 1720 1930 2130 2330 2530 2740 2940 3140 3350 3550 3750 4001
4000 I/h nominal
Dial Min. 0.2 0.4 0.5 0.6 0.8 2 3 Max.1
V [I/h]
.
Δp
min
[kPa] 17.9 18 18.1 18.2 18.3 18.5 18.7 18.9 19.2 19.6 20.1 20.7 21.4 22.3 23.4 24.6 26
1.2 1.4 1.6 1.8 2.2 2.4 2.6 2.8 3.4 3.6 3.8
28
3.2
VPP46.32F4, VPP46.32F4Q, VPI46.32F4, VPI46.32F4Q
Δp
min
Δp
min
= 11.5 kPa Δp
min
= 21 kPa
Presetting Dial = 2.85 Dial = 2.85
Total resistance Δp
VR
for primary pump
Δp
VR
= Δp
MV
+ Δp
min
= 57 kPa + 11.5 kPa
Δp
VR
= 68.5 kPa (6.8 mWC)
Δp
VR
= Δp
MV
+ Δp
min
= 12 kPa + 21 kPa
Δp
VR
= 33 kPa (3.3 mWC)
3 Select suitable valve type
Type of valve PICV (with linear characteristic) PICV (with linear characteristic)
Connection type Flange External thread
Nominal pressure level PN PN 16 PN 16
Selected valve
VPF43.50F16 (with measuring points)/
piping size DN 50
VPP46.32F4Q (with measuring points)/
piping size DN 32
4 Select valve actuator
Actuator type SAX.. with 20 mm stroke SSA.. with 5 mm stroke
Operating voltage AC 24 V AC 24 V
Positioning signal 0...10 V 0...10 V
Positioning time 30 s 34 s
Spring return function no no
Additional functions none none
Selected actuator
SAX61P03, with selectable characteristic
➞ equal percentage
ts well to cooling coil transfer characteristic
SSA161E.05HF
➞ with equal percentage characteristic
ts well to reheating coil transfer characteristic
Selection
PICV VPF43.50F16 (with measuring points) VPP46.32F4Q (with measuring points)
Valve actuator SAX61P03 SSA161E.05HF