Electrical Connections; Coil Rotation - AERMEC Omnia UL Série Manuel D'utilisation Et D'installation

OPERATION
OMNIA UL fancoils are delivered ready to operate in stan-
dard configuration .
Response to controls is immediate .
Ventilation
Ventilation speed can be controlled either manually by set-
ting the selector switch A to position V1, V2 or V3.
Ventilation is only permitted with fins open.
PACKAGING
The fancoils are delivered in standard packing comprising
protective shells and cardboard.
INSTALLATION
IMPORTANT: check that the power supply is disconnected
before performing operations on the unit.
CAUTION: wiring connections installation of the fancoil
and relevant accessories should be performed by a techni-
cian who has the necessary technical and professional
expertise to install, modify, extend and maintain plants and
who is able to check the plants for the purposes of safety
and correct operation.
Install the fancoil in a position that will facilitate routine (fil-
ter cleaning) and special maintenance, and easy access to
the air breather valve on the side of the unit (connections
side).
Note that certain operating conditions could lead to the for-
mation of condensate on the unit housing with subsequent
dripping, or faults to the water circuit or condensate draina-
ge could cause liquids to overflow. For these reasons, avoid
installing the unit on surfaces damageable by moisture.
Make sure that the unit is installed in a site where the
ambient temperature is inside the minimum and maximum
limits 0 - 45°C (<85% R.H.).
To install the unit, proceed as follows:
a) Remove the cover by unscrewing the screws in the head
piece under the doors.
b) In the case of wall mounting, ensure a minimum distance
of 80 mm from the floor. For free-standing installation on
feet, refer to the instructions provided with the unit.
c) Use expansion plugs (not supplied) when mounting the
unit on the wall.
d) Make water connections. To make the air vent from the
coil easier, you are recommended to connect the outlet
water pipe with the connection positioned on the top,
the possible inversion will not affect the proper unit ope-
ration.
The position and diameter of water connectors are given
in the dimensional data.
Insulation of water lines is recommended. Install the con-
densate water collection tray (optional accessory) to pre-
vent dripping during cooling operation.
N.B.: Use a tool to break the push-out in the drip tray
(water connection side) before connecting the condensa-
te drainage.
Size and arrange the condensate drain system in such a
way as to ensure a gradient of at least 1%. If drainage is
emptied into the sewerage system, fit a siphon to prevent
the return of unpleasant odours into the room.
Test the seal of water and condensate drainage connec-
tions.
e) Fit accessories (as applicable).
f) Make all wiring connections as shown in wiring diagrams
and the section "ELECTRICAL CONNECTIONS". Connect
the control panel to the connector on the inside of the
fancoil, then earth the unit.
g) Re-install the casing.
h) Check that the fancoil operates correctly.
9

ELECTRICAL CONNECTIONS

WARNING: always check that the electricity supply to the unit
has been disconnected before carrying out any operations.
In the specific case of electrical connections, the following
must be checked:
- Measurement of the isolation resistance on the electrical
system.
- Testing of the continuity of protection conductors.
Electric circuits are connected to mains voltage of 230V;
make sure that all components correspond to this voltage.
CONNECTING CABLES
Use H05V-K or N07V-K cables with insulation 300/500 V in
conduit or raceway. All cables exterior to the fancoil must
be protected in this way.
Only use power cables with a minimum cross section of
1.5mm
2
Position cable lengths not protected by the conduit or
raceway in such a way as to ensure that they are not subject
to stress, twisting or external agents.
When making connections, always refer to the wiring dia-
grams supplied with the unit and shown in this document.
To protect fan coils against short circuits, always fit the
power cable to the units with 2A 250V (IG) thermo-magne-
tic all-pole switches with a minimum contact gap of 3 mm.
Each control panel controls a single fancoil.

COIL ROTATION

If coil rotation is required when making water connections,
remove the unit housing then proceed as follows:
- disconnect wires from the terminal block;
- remove the probe from the coil;
- remove the screws securing the drip tray, then lift it out;
- remove the screws securing the coil, then lift it out;
- remove the push-outs on the right side;
- rotate the coil, then secure it in place with the screws pre-
viously removed;
- refit the drip tray then secure it with the screws; fit the pla-
stic plugs (supplied) in the holes left vacant by the water line
connections.
(All trays are prearranged for condensate drainage on either
side.
Before connecting up the condensate drain, use a tool to
open the diaphragm in the tray (where fitted) on the water
connection side. Seal the unused drain outlet using the plug
provided.
- Remove the electrical connections from the right hand
side. Remove the push-out and move the cable sheath from
the right to the left.
- Move the motor cable to the left hand side, passing it
through the protective sheath.
- Move the terminal board and the earthing pin to the left
hand side.
- Restore the motor cable electrical connections.
- Insert the battery probe.
- Remove the switch cards from the right hand element.
- Disconnect the microswitch.
- Remove the reinforcing stay.
- Pass the wire for the microswitch through the opening on
the opposite side.
- Secure the reinforcing stay.
- Fit the switch card on the left hand element and fit the
knobs.
- Restore the control panel electrical connections.
GB