6
Funzionamento circolatore
Circulator operation
Pressione differenziale variabile Δp-v (I, II, III)
Consigliata in caso di sistemi di riscaldamento a doppia mandata con
radiatori, per la riduzione dei rumori di flusso sulle valvole termostatiche.
Il circolatore dimezza la prevalenza in caso di riduzione della portata nella
rete di condutture. Si risparmia energia elettrica grazie all’adattamento
della prevalenza in base alla portata necessaria e a velocità di flusso ridotte.
Tre curve caratteristiche predefinite (I, II, III) tra cui scegliere.
0
0
1
2
0
20
40
60
3
4
5
6
7
8
∆
p-v (variabile)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
∆p-v
max.
max.
III
II
I
0
0
1
2
0
20
40
60
3
4
5
6
7
8
∆
p-c (costante)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
∆p-c
max.
max.
III
II
I
0
0
2
0
20
40
60
4
6
8
10
Velocità costante (I, II, III)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
III
II
I
0
0
1
2
0
20
40
60
3
4
5
6
7
8
∆
p-v (variabile)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
∆p-v
max.
max.
III
II
I
0
0
1
2
0
20
40
60
3
4
5
6
7
8
∆
p-c (costante)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
∆p-c
max.
max.
III
II
I
0
0
2
0
20
40
60
4
6
8
10
Velocità costante (I, II, III)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
III
II
I
Variable differential pressure Δp-v (I, II, III)
Recommended for two-pipe heating systems with radiators to reduce the flow
noise at thermostatic valves. The pump reduces the delivery head to half in the
case of decreasing volume flow in the pipe network.
Electrical energy saving by adjusting the delivery head to the volume flow
requirement and lower flow rates.
There are three pre-defined pump curves (I, II, III) to choose from.
Pressione differenziale costante Δp-c (I, II, III)
Raccomandazione in caso di panelli radianti o tubazioni di grandi dimensioni
e per tutte le applicazioni che non presentano curve caratteristiche
dell’impianto variabili, (come ad es. pompe cariche bollitori) e impianti di
riscaldamento a singola mandata con radiatori. La regolazione mantiene la
prevalenza impostata indipendentemente dalla portata convogliata.
Tre curve caratteristiche predefinite (I, II, III) tra cui scegliere.
0
0
1
2
0
20
40
60
3
4
5
6
7
8
∆
p-v (variabile)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
∆p-v
max.
max.
III
II
I
0
0
1
2
0
20
40
60
3
4
5
6
7
8
∆
p-c (costante)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
∆p-c
max.
max.
III
II
I
0
0
2
0
20
40
60
4
6
8
10
Velocità costante (I, II, III)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
III
II
I
0
0
1
2
0
20
40
60
3
4
5
6
7
8
∆
p-v (variabile)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
∆p-v
max.
max.
III
II
I
0
0
1
2
0
20
40
60
3
4
5
6
7
8
∆
p-c (costante)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
∆p-c
max.
max.
III
II
I
0
0
2
0
20
40
60
4
6
8
10
Velocità costante (I, II, III)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
III
II
I
Constant differential pressure Δp-c (I, II, III)
Recommended for underfloor heating for large-sized pipes or all applications
without a variable pipe network curve (e.g. storage charge pumps), as well as
single-pipe heating systems with radiators.
The control keeps the set delivery head constant irrespective of the pumped
volume flow.
There are three pre-defined pump curves (I, II, III) to choose from.
Numero di giri costante (I, II, III) [IMPOSTAZIONE DI FABBRICA]
Consigliata per gli impianti con resistenza stabile che richiedono una
portata costante. Il circolatore funziona in tre stadi corrispondenti a numeri
di giri fissi preimpostati (I, II, III).
0
0
1
2
0
20
40
60
3
4
5
6
7
8
∆
p-v (variabile)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
∆p-v
max.
max.
III
II
I
0
0
1
2
0
20
40
60
3
4
5
6
7
8
∆
p-c (costante)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
∆p-c
max.
max.
III
II
I
0
0
2
0
20
40
60
4
6
8
10
Velocità costante (I, II, III)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
III
II
I
0
0
1
2
0
20
40
60
3
4
5
6
7
8
∆
p-v (variabile)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
∆p-v
max.
max.
III
II
I
0
0
1
2
0
20
40
60
3
4
5
6
7
8
∆
p-c (costante)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
∆p-c
max.
max.
III
II
I
0
0
2
0
20
40
60
4
6
8
10
Velocità costante (I, II, III)
0
10
20
30
40
50
60
70
80
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
0
0,5
1,0
1,5
2,0
3,0
4,0
3,5
2,5
Q [m
3
/h]
Q [m
3
/h]
P1 [W
]
H [m]
H [kP
a]
III
II
I
III
II
I
Constant speed (I, II, III) [FACTORY SETTING]
Recommended for systems with fixed system resistance requiring a constant
volume flow.
The pump runs in three prescribed fixed speed stages (I, II, III).
