AERMEC FMT21 Manual De Uso E Instalación página 12

INSTALLATION
WARNING: before carrying out any work, make sure the power
supply is disconnected.
WARNING: electrical wiring, installation of the fan coils and
relevant accessories should be performed by a technician who
has the necessary technical and professional expertise to install,
modify, extend and maintain systems, and who is able to check
the systems for the purposes of safety and correct operation.
In the specific case of electrical wirings, the following must be
checked:
- measurement of the electrical system insulation strength
- continuity test of the protection wires.
Instructions essential for the proper installation of the equip-
ment are shown here.
The completion of all the operations in accordance with the spe-
cific requirements is, however, left to the experience of the instal-
lation engineer.
The command device is made up of an electronic control panel, to
be flush-mounted in the wall in a standardised, 3-module rectan-
gular box (type 503).
The control panel is fitted with two covering plates, a white one
and a black one.
Avoid installing the control panel in places directly exposed to sun
rays, draughts, heat sources and fan coil flow. Install the unit at
about 150cm from the floor, on an internal, air-conditioned wall.
Connect the wires to the control board as indicated in the wiring
diagrams.
Use wires with a maximum length of 6 metres.
PROBE INSTALLATION (SWA ACCESSORY)
If the system configuration allows it, the FMT21 panel can be
connected simultaneously to 2 SWA probes.
WATER TEMPERATURE CONTROL
The SWA probe detects the temperature of the water in the
system if connected to the connector (W).
It must be positioned on the inlet pipe downstream from any
valve.
The SWA probe for water temperature control can only be used on
2-pipe systems without electric resistance.
The maximum/minimum water temperature control is only
active with the thermostat ventilation
deactivated if continuous ventilation
The control will also be deactivated if the
"ventilation only" functioning mode is selected.
This control allows to prevent the ventilation if the
system water temperature is not suitable for the
functioning mode.
The control is only activated at the moment
when functioning in heating or cooling mode is
requested by the thermostat.
The probe-holder and bands for fixing to the water
pipe are also supplied with the accessory (see
diagram).
12
; the control will be
is selected.
The probe connection cable measures 6 metres.
The probe is connected to the connectors (A) and (W) positioned
on the back of the control panel (see wiring diagrams).
AIR TEMPERATURE CONTROL
The SWA probe detects the temperature of the room air if
connected to the connector (A). The air temperature probe,
incorporated in the panel, is automatically disabled.
The SWA probe must be positioned in a point such that it can
correctly detect the
room temperature.
The vicinity to heat
sources, lights and
windows or the direct
exposure to the sun's
rays and to currents of
air prevent the correct
detection of the room
temperature.
The SWA accessory
is also supplied with
band for fixing the
fancoil intake probe
(see diagram).
F C X / F C S
A I R