HYDRAULIC CONNECTIONS
The choice and installation of components is the responsi-
bility of the installer who should follow good working
practice and current legislation.Before connecting the
pipes,make sure they do not contain stones,sand,rust,
dross or other foreign bodies which might damage the
unit.Construction of a bypass is recommended to enable
the pipes to be washed through without having to discon-
nect the unit (see drain valves).The connection piping
should be supported in such a way as to avoid it weighing
on the unit.It is recommended that the following devices
are installed in the water circuit of the evaporator.
1.Two pressure gauges with a suitable scale (inlet and
outlet).
2.Two vibration damper joints (inlet and outlet).
3.Two gate valves (normal in inlet and calibrating in
outlet).
4.A flow switch (inlet) or a differential pressure switch
(inlet-outlet).
5.Two thermometers (inlet and outlet).
6.An inlet filter as close as possible to the evaporator and
7. An energy-saving water tank.
8. Additional pump.
positioned to allow easy access for routine maintenance.
A hydraulic safety valve shall be mounted in water system,
which should open constantly.
9. The connecting line of flow switch, which mounted
outside the unit, should be connected in series with the
pressure-difference switch, which mounted inside the
unit.
1
Factory Connections
Site Connections
A
F
WATER INLET
WATER OUTLET
3
4
7
2
5
6
8
9
10
10
11
12
14
13
11
6
9
9
1 Plate Heat Exchange
2
Differential Pressure Switch
3 Automatic Discharge Valve
4 Expansion Tank
5 Auto-watet replenishing
6
Circulating Pump
7 Pressure Gauge
8 Safety Valve
9
Drain/Chemical Washing Valve
10 Flexible Joint
11 Thermometer
12 Calibrating Valve
13 Y-shaped Filter
14 Water Flow Switch
7
7
6
A
I
