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English
Installation
Then:
n
Provide the evaporator with a by-pass circuit
equipped with a valve to wash the plant.
n
Insulate the piping, to prevent the risk of heat loss.
n
Position a filter on the suction side of the evaporator
of the heat recovery condenser.
4.4 Hydraulic connections
The water inlet/outlet fittings shall conform to the in-
structions provided by the plates affixed near the con-
nection 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 produc-
ing ice banks.
The heat pump units must be installed in positions
where the defrosting water cannot create any dam-
age.
Installation Flow Switch
Unit
External Hydraulic Circuit
Connection Diagram
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
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 create
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 cir-
cuit must be treated to obtain the requested
PH.
WARNING
NOTE
