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Air conditioning units that run on chilled water and / or have hot water coils must be connected to a
respective water supply (hot and chilled water) as indicated in the diagrams that are supplied with
each unit.
Each single circuit must have the possibility of being isolated and so shut-off valves should be
installed in the lowest points of the circuit for general maintenance operations.
All the piping for the supply and return of the water should be well insulated in order to avoid heat
dispersion and the formation of condensate.
Ensure that there are no leakages in the circuit, fill the installation and remove any air that may have
remained in the various circuits by acting on the relief valves that are normally found on the collector
of the coil or any other high point in the circuit.
If the unit is supplied with a motorised valve, check that the servomotor operates correctly and the the
opening of the valve is synchronised with the demand for cooling.
The condensate discharge and the connections to the humidifier, as well as electrical connections,
have all been described in the previous chapters.
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