14
4 - Installation
WARNING
Before filling the installation, remove any
impurity, such as sand, crushed stones and
welding scales, coating drops and any other
material which might damage the evaporator.
It is advisable to flush with disposable water bypassing the exchanger
to avoid clogging.
NOTE
The water used to fill the circuit shall be treated
in such as way that the pH will have the correct
value.
When two or several units are connected in parallel, to balance the
load losses of the various circuits, it is recommended to execute a
“reverse return” connection (see the diagram below).
External water circuit
SAFETY/CONTROL DEVICES
A Inlet water temperature sensor
B Outlet water temperature sensor
C Water differential pressure switch (105 mbar)
D Vent valve
E Water safety valve (3 bar)
F Manometer
FS Flow switch
G Thermometer
Unit side
Y Water drain
10
10
13
12
12 11
11
4
5
3
8
6
HYDROKIT
INLET
OUTLET
Y
2
1
7
FS
F
E
E
D
D
C
A
B
G
G
COMPONENTS
1 Plate heat exchanger
2 Pump
3 Draining valve
4 Water buffer tank
5 Water filter
6 Automatic water charging valve
7 Pressure expansion tank
8 Water charging line
9 Water outlet
10 Water inlet
11 Globe valve
12 Flexible pipes
13 By-pass valve
UNIT 1
UNIT 2
Legend
S On/Off valves
VG Balancing valves
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