In the event of failure of the SA ambient sensor, the thermostat
goes into Emergency mode as indicated by the yellow LED (D)
flashing. Under these conditions the control panel operates in
the following way:
- with selector switch (A) in OFF position: la valvola acqua è
chiusa ed il fan off.
- with selector switch (A) in AUTO, V1, V2 or V3 position: la val-
vola acqua è sempre aperta ed il the fan performs on-off cycles;
in this case, the power supplied by the terminal is controlled
manually by means of the temperature selector switch (B): rota-
te the switch to right to increase cycle duration, or to the left to
reduce it.
PACKAGING
The fancoils are delivered in standard packing comprising pro-
tective 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 technician 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 opera-
tion.
Install the fancoil in a position that will facilitate routine (filter
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 forma-
tion of condensate on the unit housing with subsequent drip-
ping, or faults to the water circuit or condensate drainage 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 operation.
The position and diameter of water connectors are given in
the dimensional data.
Insulation of water lines is recommended. Install the condensa-
te water collection tray (optional accessory) to prevent drip-
ping during cooling operation.
N.B.: Use a tool to break the push-out in the drip tray (water
connection side) before connecting the condensate draina-
ge.
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 connections.
e) Fit accessories (as applicable).
f) To modify electronic thermostat settings, adjust the dip-
switches inside the panel (see section "DIPSWITCH
CONFIGURATION").
g) 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.
h) Run an Autotest to check that the fancoil operates correctly.
i) Re-install the casing.
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 con
-
duit or raceway. All cables exterior to the fancoil must be pro-
tected 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 diagrams
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-magnetic 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 plastic
plugs (supplied) in the holes left vacant by the water line con-
nections.
All trays are prearranged for condensate drainage on either side.
N.B.: 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 thermostat card on the left hand element and fit the
knobs.
- Restore the control panel electrical connections.
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