Balancing And Setting The System; Dimensional Example; Hydraulischer Abgleich Und Einstellen Der Anlage - Grundfos UPM3 AUTO L 25-50 130 Manuel D'installation Et D'utilisation
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3. BALANCING AND SETTING THE SYSTEM
3. HYDRAULISCHER ABGLEICH UND EINSTELLEN DER ANLAGE
3.1 Dimensional example
3.1.1 Thermostatic regulation
Project data:
p = capacity to provide to the floor-mounted system = 6000W
t
= delivery temperature of the floor system = 40°C
ip
t
= temperature of the water coming from the boiler = 70°C
c
Δt
= project temperature drop of the floor-mounted system = 5°C
ip
tr = floor-mounted system return temperature = Tip –ΔTip =
40 – 5 = 35°C
Q
= floor-mounted system flow-rate = (P[W] x 0,86) / (ΔTip) =
ip
(6000 x 0,86) / 5 = 1032 l/h
Δp
= control valve pressure drop
valv
From the diagram underneath the 1032 l/h flow rate, there are 6 different
curves that correspond to the various bypass adjustments (ref. fig. A):
the less the bypass opens, the shorter the response time of the mixing
valve to the temperature variations and the requested delivery tempera-
ture is reached in a shorter amount of time. Conversely, the opening of
the bypass reduces the drops by increasing the system's flow-rate and
simultaneously reducing the flow temperature oscillations due to the
opening-closure of the various areas the heating system is divided into.
Mixing unit pressure drops
Druckverlust Regelventil
1000
0 Kv=3
1 Kv=3,4
2 Kv=3,8
3 Kv=4,2
4 Kv=4,5
4 Kv=4,5
5 Kv=4,8
100
10
1
0 0
k
0
0 1
0 0
1
0 0
Q [l/h]
3.1 Festpunktregelung
3.1.1 Beispiel Leistungsermittlung
Projektdaten:
P = benötigte Leistung = z.B. 6000W
t
= Soll- Vorlauftemperatur der Flächenheizung (Sekundärkreis) = z.B. 40°C
ip
t
= Temperatur Kesselkreis (Primärkreis) = z.B. 70°C
c
Δt
= Temperaturspreizung Sekundärkreis = z.B. 5K
ip
tr = Rücklauftemperatur Flächenheizung= tip –Δt = 40 – 5 = 35°C
Q
= Durchsatz Fußbodenanlage = (P[W] x 0,86) / (ΔTip) = (6000 x 0,86)
ip
/ 5 = 1032 l/h
Δp
= Leistungsverlust Regelventil
valv
Je nach Bypass Einstellung (Ref. Fig. A) ergeben sich für den
Durchfluss von 1032 l/h sechs unterschiedliche kv-Werte. Je geringer
die Öffnung des Bypass (kleiner Einstellwert) ist, desto geringer sind die
Reaktionszeiten des Mischventils auf die Temperaturänderungen und
UPM3(K) AUTO L 25-70 180 (N)
UPM3(K) AUTO L 25-70 180 (N)
UPM3(K) AUTO L 25-70 180 (N)
desto schneller wird die gewünschte Vorlauftemperatur erreicht. Ein
größerer Einstellwert des Bypasses hingegen erhöht die Beimischmenge
der Einheit, wobei gleichzeitig die Schwankungen der Vorlauftemperatur
minimiert werden. Diese Einstellung empfiehlt sich bei stark unterschied-
lichen Primär- und Sekundärtemperaturen.
p
H
p
H
[kPa]
p
[m]
H
[kPa]
[m]
[kPa]
[m]
7
7
7
60
UPM3 AUTO L 25-50
UPM3(K) AUTO L 15-50 130, 25-50 130 (N), 25-50
6
60
6
60
6
50
5
50
5
50
5
40
4
p
H
40
4
40
4
[kPa]
[m]
30
3
30
3
50
30
5
3
20
2
20
2
40
20
2
4
10
1
10
1
10
30
1
3
0
0
0
0
0
0
20
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3
2
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3
10
1
0.0
P1
0.0
P1
0.0
0
0
P1
[W]
[W]
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
[W]
50
50
50
0.0
0.1
0.2
P1
40
40
[W]
40
35
30
30
30
30
20
25
20
20
20
Setting
Max. head
nom
10
10
15
Curves 1
2 m
10
10
Curves 2
3 m
0
0
0 0
5
Curves 3
4 m
0
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3
0
Curves 4
5 m
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
Curve / Performance curve
Curve / Performance curve
Performance curve
Curve / Performance curve
Curves / Kurve
Line Type / Art der Linie
Linea / Line type
Line type
Description
Linea / Line type
Linea / Line type
Constant Curve
Proportional Pressure
Constant Pressure
Electrical data, 1 x 230 V, 50 Hz
Electrical data, 1 x 230 V, 50 Hz
S
p
e
e
d
Electrical data, 1 x 230 V, 50 Hz
Electrical data, 1 x 230 V, 50 Hz
M
i
. n
S
p
e
e
d
S
p
e
e
d
M
a
. x
S
p
e
e
d
M
i
. n
M
i
. n
0.1
0.2
0.3
0.4
0.5
0.1
0.2
0.3
0.4
0.5
0.1
0.2
0.3
0.4
0.5
0.3
0.4
0.5
0.6
0.7
max. Förderhöhe
nom
Kurve 1
2 m
Kurve 2
3 m
Kurve 3
4 m
Kurve 4
5 m
Description / Beschreibung
Description
Description
Description
Constant Curve / Konstante Kurve
Constant Curve
Constant Curve
Constant Curve
Proportional Pressure
Proport. Pressure / Proportional-Druck
Proportional Pressure
Proportional Pressure
Constant Pressure
Constant Pressure
Constant Pressure / Konstanter Druck
Constant Pressure
P
[W]
I
[
A
]
1
1/1
4
0
0 .
6
P
[W]
P
1
[W]
1
3
3
P
[W]
0
3 .
6
1
5
5
GB
GB
DE
DE
H
R
S
C
C
C
C
0.6
0.7
0.8
0.9
0.6
0.7
0.8
0.9
0.6
0.7
0.8
0.9
Q [m³/h]
S
0.8
0.9
Q [l/s]
C
C
C
C
E
P
Q [m³/h]
P
W
M
A
-
I
[
A
]
I
1/1
[
A
]
7
1/1
I
[
A
]
1/1
0
0 .
7
0
0 .
7
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