AERMEC Omnia HL N Manuel D'utilisation Et D'installation page 34

CONNECTIONS
The water, condensate discharge and electrical circuit ducts must be provided for.
WATER CONNECTIONS
- Make the water connections. To help
the bleeding of air from the coil, you
are advised to connect the water
outlet pipe to the fitting at the top;
any inversion will not jeopardise the
proper functioning of the unit.
The position and diameter of the
AIR
CONDENSATE DISCHARGE CONNECTION
During cooling operation the indoor
unit removes humidity from the air. The
condensate water must be eliminated
by co n n e c t i n g t h e a p p ro p r i ate
discharge coupling to the piping of the
condensate discharge system.
N . B . : B e f o r e c o n n e c t i n g t h e
condensate discharge, use a tool to
ELECTRICAL WIRINGS
WARNING: check that the power
supply is disconnected before
carrying out any procedures on the
unit.
In the specific case of electrical
wirings, the following must be
checked:
- Measurement of the electrical system
insulation strength
- Continuity of the protection wires
- The electrical wirings must be
made in compliance with the wiring
diagrams
The unit must be connected directly
to an electrical outlet or to an
independent circuit.
OMNIA fan coils are powered with a
current of 230V ~ 50Hz with an earth
connection, but the line voltage must
remain within the tolerance value of
±10% compared with the nominal
value.
The electrical power cable must be of the
H07 V-K or N07 V-K type with 450/750V
insulation if inside a tube or raceway.
Use cables with double H5vv-F type
insulation for visible cable installation.
All the cables must be piped or ducted
until they are inside the fan coil. The
34
IHLNLJ 2204 - 6887212_02
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.
Coil connections
OMNIA
Omnia HL
CONNECTIONS
OUT = Water outlet coil connection
D
IN = Water inlet coil connection
AIR = Coil air drain valve
SC
D = Coil drainage valve
SC
= Condensate discharge (male Ø 16mm)
knock out the diaphragm of the tray
on the water connections side.
Seal the unused drainage hole.
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
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.
Stranded cables can only be used with
crimping terminals. Check the wire
strands are well inserted.
The wiring diagrams are subject to
continuous updates, so it is essential
to use those on the machine as your
reference.
For all the connections, follow the wiring
diagrams supplied with the device and
shown in this documentation.
In installations with a 3-way valve, the
minimum water temperature sensor
must be relocated from its standard
mounting in the coil assembly to the
delivery hose upstream of the valve.
If you need to relocate the water
temperature probe, the standard
probe must be replaced with an SW3N,
accessory probe, fitted with a cable of
suitable length.
The connections must be made with the
connectors on the electronic card on
the side of the fan coil (protected by a
11 N 16 N 26 N
Ø 1/2" 1/2" 1/2"
Te s t t h e s e a l o n t h e wate r
connections.
36 N
1/2"
the sewage system, install a siphon
to prevent the return of unpleasant
odours into the room.
Test the condensate discharge
seal.
plastic box).
WARNING: the diagram showing
the connections of the electronic
card to the control board is printed
inside its box cover.
- Connect the power cables.
- Connect the earth cable.
- Connect the electric cables of the valve
accessory (if installed).
- Connec t the net work cables (if
connected to a network).
- Connect the cables for an external
contact (if envisaged).
- Check all the connections and relative
cables are well fixed.