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I
NSTALLATION
The FWB air conditioning and hot-air heating units, the
circuit breaker (IL) and/or the remote control must be
installed out of reach of persons who may be taking a bath
or shower.
Exploded view of the unit
(See figure 3)
1
Water drip tray
2
Heat exchanger module
3
Switch box
4
Terminal strip
5
Anti-vibration isolator
6
7-speed electric motor
7
Fan drive assembly
8
Straight duct connector
Configuration of the unit
The heat exchanger connections can be switched over to the
opposite side by carrying out the following procedure. (See figure 4)
1
Remove the straight duct connector.
2
Remove the drip tray.
3
Remove the heat exchanger module by unscrewing the holding
screws (2 on each side + 3 on the upper side and 2 on the lower
part).
4
Turn the heat exchanger module over 180° (vertical axis) and screw
the module back onto the fan module.
5
Adjust the position of the drip tray so that the sticking-out part
extends below the hydraulic connections and fix it in place again.
6
Screw the straight duct connector back to the heat exchanger
module.
Installing the unit
Insert the supplied anti-vibration isolators in the 4 slots indicated for
ceiling installation. Fix the standard unit to the ceiling or wall using at
least 4 of the 8 slots;
For installation it is advised to use M8 threaded bars, screw
anchors suitable for the unit's weight and to arrange for the
positioning of the unit using 3 M8 bolts (2 in the lower part, and 1
in the upper part as shown in figure 5) and 2 washers the
diameter of which is suitable for inserting the slot and for then
fixing the unit.
Before tightening the lock nut, adjust the closing of the main nut
so that the unit will slant correctly, i.e. for facilitating the
discharging of the condensate (see figure 6).
The correct slant is achieved by tilting the inlet downwards as
compared to the outlet until a difference in level of about 10 mm
is obtained from one end to the other. Make the hydraulic
connections with the heat exchanger and, for cooling operations,
with the condensate discharge. Use one of the 2 drains of the
drip tray, visible on the outside of the unit's side panels.
To connect the unit to the condensate discharge line, use a
flexible rubber tube and fix it to the chosen discharge tube (Ø3/8")
by means of a metal clamp (use the discharge that is located on the
hydraulic attachments side).
To assist the draining of the condensate, slant the discharge
tube downwards by at least 30 mm/m making sure that its entire
route is clear and free from bendsor blockages.
FWB
Ducted fan coil units
4PW24344-1
A few rules to follow
Purge the air from the heat exchanger, with pumps stopped,
by means of the air valves located adjacent to the
attachments of the heat exchanger itself.
The ducting, especially the outlet duct, must be insulated
with anti-condensation material.
Provide an inspection panel adjacent to the equipment for
the maintenance and cleaning operations.
Install the control panel on the wall. Choose a position that is
easy to access for the setting of the functions and for
detecting of the temperature. Try to avoid positions that are
directly exposed to sun rays, or positions subject to direct hot
or cold air currents. Do not place obstacles in the way that
would prevent the correct reading of the temperature.
F
IELD WIRING
All field wiring and components must be installed by a
licensed electrician and must comply with relevant local
and national regulations.
Carry out the electrical wiring after having turned the power off. For
options, refer to the appropriate manual.
Check that the power supply corresponds to the nominal power
supply stated on the unit nameplate.
Each unit requires a switch (IL) on the power supply with a distance
of at least 3 mm between the opening contacts and a suitable safety
fuse (F).
Power consumption is shown on the data plate fixed to the unit.
Make sure to carefully execute the wiring in function of the
combination unit/controller and this according to the correct wiring
diagram delivered with every accessory.
In order to make the electrical connections you must remove the
panel covering the switch box (see figure 3) to access the terminal
strip.
The power cables (power supply and control) must be routed to the
terminal strip through the pwer supply cable intake holders on the
side of the switch box.
Wiring diagrams
figure 8
FWB + controller ECFWER6 (FWB02~07)
figure 9
FWB + controller ECFWER6 + power interface EPIA6
(FWB08~10)
figure 10
FWB + controller ECFWER6 + master/slave interface EPIMSA6
The motors of the units run at 7 speeds.
The common wire of the motor is the white one (WH).
If the common wire is not connected correctly, the motor
would be damaged irreparably.
Installation and operation manual
2
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