22
1-31
Sa
rci
na h
id
ra
ul
ică (kP
a)
V4
A4
A3
A2
A1
V3
V2
V1
1
IN
OUT
2
9
8
11
4
5
7
12
6
13
1-30
1
2
3
4
5
6
7 6
10
11
1
4
8
12
9
14
2
13
3
5
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
Solar circulation unit available head.
Key:
Vn = Available head
An = Circulating pump absorbed power
Ci
rcu
la
to
r p
um
p a
bs
or
be
d p
ow
er (
W
)
Flow rate (l/h)
1.29 MAIN CIRCULATION UNIT COMPONENTS.
Key:
1 - Solar pump
2 - Non-return valve, thermometer
and cock
3 - Safety valve drain fitting
4 - Flow meter
5 - 6 bar safety valve
6 - 3/4” connection for expansion vessel
7 - Manometer
8 - Draining valve
9 - Filling valve
10 - Insulating casing
11 - Flow rate regulator
12 - Inlet
13 - Outlet
14 - Reference for flow rate reading