Electrical Connections; Installation Of Grille/Frame Assembly - CIAT MELODY 2 Serie Manual De Instalación

I
The unit must be installed in compliance with
the national standards on plant installation.
All cables for connection to the unit, as well as
its accessories, must be
H05 VV-F with PCV insulation in compliance
with EN60335-2-40.
Disconnect all circuits from power supply
before acting on energized components.
Make earthing before any other electric
connections.
In compliance with the installation instructions, the
contact opening of all disconnecting devices (4 mm)
must allow full disconnection under the conditions of
overvoltage class III
Connect power supply L (line), N (neutral) and
(earthing) according to the wiring diagram and respect
the polarities shown on the bottom of the electrical boxes,
see
All unit must be installed with a fuse for machine
protection. Refer to table I for fuse installation and
replacement.
The control box panel is positioned
on the external side of the unit
The control box panels contain the terminal blocks for
connections as shown in the wiring diagrams and
Carefully unpack the assembly and check for damage
sustained in transit.
Attach the assembly to the unit, fastening it onto its two
with their spacers (ref. 17).
with it.
For units with I.R. control and/or motorized louvers the
electric cables must be connected between the unit and
the frame.

Electrical connections

Units with electric heaters
The unit is equipped with two safety thermostats: one
automatic reset thermostat and one manual reset
thermostat which can be re-activated,
protect the unit against overtemperature caused by dirty
The manual thermostat must be reset by skilled
personnel only after the cause for which the intervention
was required has been removed.
. Remove the

Installation of grille/frame assembly

Ensure that the frame is not distorted by excessive
tightening, that it is aligned with the false ceiling and
above all that there is a seal between the air inlet and
outlet.
In the drawing gasket "C" prevents return air from mixing
with the supply air and gasket "D" prevents the supply air
from leaking into the ceiling void.
On completion, the gap between the unit frame and the
false ceiling must not be more than 5 mm.
GB - 27
To power the unit, use cables with minimum
section as accordingto table II.
After all connections are made, fasten the cable
using the special tear protections (ref. 19)
Close the control box panel with the protecting
cover and tighten the screw(s) which were
previously removed.
The use of hot water and electric heaters is
allowed only if the "Booster Heating" option is
active.
GB
(ref. A) to
MELODY 2