________________________________________________________________________________
21
AST 14 C 257/00
The terminal block of the circulation pump has a 3-position
selector that intervenes on the motor rotation speed and
consequently on the plant head for all capacities, the only
different element (depending on the primary exchanger) is
the residual head curve.
LEGEND
V1
Pump
speed
I
(min)
V2 Pump speed II
V3 Pump speed III (max)
Max. head:
6 m
Max. operating pressure:
6 bar
Max. circulation temperature: 95°C
24 kW
32 kW
28 kW
A
vai
la
b
le p
ressu
re
[
m
b
a
r]
A
vai
la
b
le
p
ressu
re
[
mb
a
r]
A
vai
la
b
le p
ressu
re
[
m
b
a
r]
Flow rate [l/h
Flow rate [l/h
Flow rate [l/h
Flow rate [l/h
