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Translation from original instructions
5.3 Installation
Upon installation, these units require different stages of assembly, depending on their operation and type.
The cases can be:
- Units consisting of water coil only; the units are shipped from the factory already tested and only need electrical and
hydraulic connections for installation.
-
Units which use the refrigeration cycle and are equipped with water condenser; in this case also the units are shipped
from the factory already tested and only need electrical and hydraulic connections for installation.
- Units which use the refrigeration cycle and are pre-set for a remote condenser; as regards their operation, these units
are shipped from the factory as “off-load” tested. The refrigerant circuit is charged with nitrogen and the oil charge is insi-
de the compressor. In addition to the electrical and possibly the hydraulic connections, a refrigerant one is also required.
- units which use both the refrigerant circuit and water coils; for these units there is the same combination as in the pre-
vious cases with water coil and water cooled or remote condenser.
5.3.1 Positioning the units
Access to the refrigeration, plumbing and electrical connections is from the bottom of the unit. Should a raised floor not be
available, a base in order to access the bottom of the unit and make the connections must be provided. The base may be
provided as an accessory.
Make sure that the floor can support the weight of the unit (refer to the documentation attached to the unit).
Since all connections are on the bottom of the unit, the holes and / or predispositions for the various passages of the refri
-
gerant /hydraulic pipes are also located on the base. Once any pre-cut piece is open and all connections have been made,
the appropriate measures in order to prevent unwanted air leakage (for example, by sealing the unused spaces or covering
unused holes) must be implemented.
The "fresh air intake" accessory must obviously have adequate lateral space from the unit for connecting the sleeve and
removing the filter.
When installing multiple units in the same room, it is necessary to take all precautions in order to optimise air distribution
and prevent its recirculation.
Given the high specific airflow, a proper study must be carried out if the units are installed in areas permanently occupied
by people.
a suitable safety protection on the air discharge side of the unit itself must be provided for all units with verti-
cal flow, should a connection to a duct or to a discharge plenum not have been provided.
Make sure that the unit is installed in a perfectly horizontal position.
