17
WARNING: before carrying out any
work ensure the individual has the
appropriate personal protection.
WARNING: check that the power sup-
ply is disconnected before performing
operations on the unit.
WARNING: wiring connections, instal-
lation of the fan coil unit and relevant
accessories should be performed by a
technician who has the necessary tech-
nical and professional expertise to
install, modify, extend and maintain
systems and who is able to check the
system for the purposes of safety and
correct operation.
In the specific case of electrical connec-
tions, the following must be checked:
- Measurement of the electrical system
insulation resistance.
- Continuity test of the protective wiring.
If the fan coil unit operates continuously
in cooling mode in a room with high rela-
tive humidity, condensate might form on
the air discharge. This condensate might
be deposited on the floor and on any
objects underneath. To prevent the for-
mation of condensation on the exterior
of the unit while the fan is operating, the
average water temperature should not
drop below the operating limits shown
in the manual determined by the room
temperature and humidity conditions.
These limits refer to unit operation with
fan at minimum speed.
Instructions essential for the proper
installation of the equipment are shown
here.
The final touches to all the operations
are however left to the experience of the
installation engineer in accordance with
the specific needs.
The CWX_W fan coil unit must be
installed in such a position that the air
can be distributed throughout the room
and that there are no obstacles (curtains
or objects) to the passage of the air from
the intake. The unit must be arranged in
such a way as to make ordinary mainte-
nance easy (filter cleaning) and special
maintenance, as well as the access to the
air vent valve on the heat exchanger coil
at a height of 190 to 220 cm.
Installation
To install the unit, proceed as follows:
- Put the template on the wall, fixing it
solidly with at least six or more screws
or expansion blocks of a type that is
adequate for the thickness of the fix-
ing wall, through holes near the edge
of the template.
The template must be fixed flush to
the wall, perpendicular to the floor
and perfectly level. Failure to respect
these conditions will cause water to
drip out of the drain tray.
- Remove the cabinet.
- The CWX_W unit permits 4 connection
possibilities.
For connections through the wall make
a hole with a diameter of 70 mm,
inclined downwards by 5-10 mm.
For connections sideways and down-
wards, remove the knock-outs of the
cabinet in the direction of the pipes.
- Carry out the electrical connections as
shown on the wiring diagram.
- Make the refrigerant connections.
Repeated bending of the tubes may
cause them to break.
- Connect the condensate drain outlet
to the drainage line and make sure it
works properly.
- Insulate the pipes properly.
- Position the CWX_W unit on the tem-
plate after passing the pipe through
the hole or in the channelling in the
wall. Check that the fan coil is level
horizontally and vertically.
- When all the installations have been
completed (electrical and refrigeration
connections, fan coil fixing and con-
densation drain connection) close the
hole in the wall with a suitable filler.
- Complete the refitting of the compo-
nents of the unit paying attention that
the debris from the materials used for
the installation do not block the fan or
obstruct the filters or the grilles.
INSTALLATION OF THE UNIT
Select the position of the indoor unit taking into account
the following notes:
•
The front of the air inlet and outlet must be free
of any obstructions. The outgoing air should flow
freely.
•
The wall where the unit is to be mounted should
be strong enough to withstand the weight and
vibration produced by the unit.
•
Make sure to respect the minimum technical
spaces (shown in the figure).
150
Minimum technical spaces
Direction of airflow
CHOICE OF THE LOCATION IN WHICH TO INSTALL THE UNIT:
150
150
150
[mm]
Install at a height greater than that of your gaze
Floor