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English
Installation
Then:
Q
Provide the evaporator with a by-pass circuit
equipped with a valve to wash the plant.
Q
Insulate the piping, to prevent the risk of heat loss.
Q
Position a filter on the suction side of the evapora-
tor of the heat recovery condenser.
Before filling the circuit, it is important to
check that it is free from any foreign matter,
sand, gravels, rust, welding deposits, waste
and other materials that may damage the
evaporator.
When cleaning the lines, it is recommended to crea-
te a circuit by-pass. It is important to mount a filtering
medium (30 mesh) upstream of the chiller.
If necessary, the water required to fill the
circuit must be treated to obtain the reque-
sted PH.
4.4 Hydraulic connection
The water inlet/outlet fittings shall conform to the
instructions provided by the plates affixed near the
connection points.
4.5 Draining the defrosting waste
water (for heat pump unit only)
When heat pump units work in heating mode, during
defrosting cycles, they may discharge water from the
base. This is why the units should be installed at least
200 mm above the floor level, so as to allow the free
drainage of waste water, without the risk of produ-
cing ice banks.
The heat pump units must be installed in positions
where the defrosting water cannot create any damage.
Legends:
I: Pressure
gauge
connection
S: Gate
valve
F1: Flow
Switch
GA: Flexible hoses
R:
Drain cock
T:
Thermometer
F:
Filter
I1/I2: Pressure gauge connection to measure
pressure drop or head pressure
WARNING
NOTE
Installation Flow Switch
External Hydraulic Circuit
Connection Diagram
Unit
VLS-GB.indd 15
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