41
INS
TALL
AT
O
RE
U
TENTE
MANU
TENT
O
RE
38
0
5
10
15
20
25
30
35
40
45
50
0
200
400
600
800
1000
1200
1400
1600
Portata (L/h)
Perdite di carico
(kPa)
A
B
Total head available to the system.
To obtain the available head for the system, subtract the head losses
of the outdoor unit from the available head of the indoor unit.
Outdoor Unit head losses
Indoor Unit available head
A = Head available with by-pass closed
B = Power absorbed by the pump with by-pass open (dotted area)
Ci
rcu
la
to
r p
um
p a
bs
or
be
d p
ow
er (
W
)
Flow rate (l/h)
H
ea
d (kP
a)
H
ea
d l
os
s (kP
a)
Flow rate (l/h)
Speed 9
Speed
5
