Electrical Wirings; Rotating The Coil - AERMEC Omnia ULI 16 PC Manual De Instrucciones E Instalación

drainage with the consequent spilling of liquid.
The assembly site must be chosen in such a way that the maxi-
mum and minimum ambient temperature limits are respected
0÷45°C (<85% U.R.).
To install the unit, proceed as follows:
- Remove the housing by unscrewing the screws on the head
under the hatches.
- With wall-mounted units, keep a minimum clearance of 80
mm from the floor. With floor-standing units on feet, refer to
the instructions supplied with the accessory.
- Use wall plugs (not supplied) for wall-mounted installations.
- After completing the hydraulic connections, to help bleed air
from the coil, you are advised to connect the water outlet
pipe to the fitting at the top; any inversion will not jeopard-
ise the proper functioning of the unit.
The position and diameter of the water connections are
shown in the dimensions.
You are advised to adequately insulate water lines, or fit the
auxiliary condensate drain tray (available as an accessory), to
prevent dripping during the cooling function.
N.B.: Before connecting the condensate discharge, use a tool
to break the tray membrane (if fitted) on the water connec-
tions side, seal the discharge that is not used with the cap
supplied as standard.
The condensate drain network must be properly scaled and
the piping situated in such a way as to keep an adequate
slope along the route (min. 1%). If condensate is discharged
into the sewage system, install a siphon to prevent the return
of unpleasant odours into the room.
Test the seal of the water connections and the condensate
discharge.
- Apply any accessories.
- To modify the electronic thermostat settings, use the Dip-
Switches through the specific window on the rear of the ther-
mostat (see section "DIP SWITCH configuration").
- Complete the electrical connections with reference to the
indications in the wiring diagrams and in the "WIRING
DIAGRAMS" section, connecting the thermostat connector to
the connector on the inside of the fan coil and also complet-
ing the earth connection.
- Reassemble the casing.
- WARNING: The filter must be removed from the sealed
package and fitted on the unit only when it is to be used for
the first time.

ELECTRICAL WIRINGS

WARNING: check that the power supply is disconnected
before carrying out any procedures on the unit.
In particular, the electrical wirings require checks relating to:
- Measurement of the electrical system insulation resistance;.
- Continuity of the protection wires.
The electrical circuits are connected to the 230V mains voltage;
all the connections and components must therefore be corre-
spondingly insulated for this voltage.
CHARACTERISTICS OF THE CONNECTION CABLES
ULI_PC
16
IULIPCLJ 1810 - 6976445_02
Use H05V-K or N07V-K type cables with 300/500V with insula-
tion, piped or ducted.
Use power supply cables with a minimum cross-section of
2
1 mm .
All the cables must be piped or ducted until they are inside the
fan coil.
The cables leaving the pipe or raceway must be positioned in
such a way that there are not traction or twisting stresses and
they are anyway protected from outside agents.
For all the connections, follow the wiring diagrams supplied
with the device and shown in this documentation.
To protect the unit against short circuits, fit an omnipolar
thermal-magnetic trip 2A 250V (IG) to the power line with a
minimum contact opening distance of 3mm.
It is recommended to use differential devices capable to inter-
vene for currents of different types:
Sinusoidal AC and pulsating DC currents suddenly
applied or slowly increasing
Sinusoidal AC with frequency up to 1000 Hz.
Each control panel can control a single fan coil.

ROTATING THE COIL

If hydraulic connections require the rotation of the coil, proceed
as follows:
- Remove the covering cabinet of the machine
– remove the electrical connections from the terminal strip;
– remove the probe from the coil;
– remove the screws fixing the basin and remove it;
– remove the screws securing the coil, then remove the coil;
– remove the push-outs on the right-hand side;
– rotate the coil and secure it with the previously removed
screws;
– refit the tray, securing it with the screws, insert the plastic
plugs supplied in the holes left free by the hydraulic connec-
tions;
all the trays can be used for condensate drainage on both
sides.
N.B.: Before connecting the condensate discharge, remove
the plastic cap on the tray and use it to cover the discharge
– slide out the electrical connections from the right-hand side,
remove the push-out and move the cable guide from the right
to the left side;
– move the motor cable on the left side so that it passes
through the fairing;
– move the control board and the grounding clamp to the left
side;
– restore the motor cable electrical connections;
– fit the battery probe;
– remove the selector cards from the RH element;
– disconnect the microswitch;
– pass the microswitch cable through the window on the oppo-
site side;
– fit the thermostat card on the LH element and fit the knobs;
– restore the electrical connections on the control panel.
Refit the covering cabinet of the machine.