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3.5.7.
Connecting water supply
Check that the system is stopped, with the general switch in position 0.
Add water until the pressure of the hydraulic circuit reaches 2 bar. The P-vent operates
automatically, run the pump to readjust the pressure.
Check that there are no leaks.
After the "Commissioning" step, once the machine is operating drain the hydraulic station again
using the controller degassing function. See chapter 3.6.6.1.
.
3.5.7.1.
Precautions to take for water filling
• Supervise all of the operations for connecting the water supply and filling.
• Before connecting the water supply and filling the system, disconnect the electrical power
supply to the units.
• The connection of the water supply and filling of the installation must always be carried out in
controlled pressure conditions (max. 1 bar). Ensure that a pressure reducer and a safety valve
have been fitted on the loading/reintegration line.
• The water in the supply/filling line must be filtered properly beforehand to remove all impurities
and suspended particles. Ensure that a removable screen filter and filter-settler are installed.
• Periodically check and evacuate the air that accumulates in the system.
• Fit an automatic air vent at the highest point of the system.
3.5.7.2.
Automatic air vent
The unit is fitted with an air vent valve which enables
the air built up inside the circuit to be eliminated
automatically, avoiding any undesired effects, such
as corrosion, premature wear and loss of output.
It also has a safety function, as if the condenser
breaks, it allows the refrigerant gas to evacuate to
the outside air and avoid transporting it to internal
terminals.
When the air vent remains in the open position, the
air is evacuated automatically.
CAUTION:
INFORMATION:
01-07-2022
The air vent is delivered closed from the factory. It must be opened so that it can
evacuate the air.
If there is a water leak, the component must be changed, by unscrewing it
with two wrenches, as shown in the picture below.
AHP60 26/32 kW - Installation, Use and Maintenance
Figure 12 - Automatic air trap
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