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3.5.
Prepare the electrical wiring work
The unit must be connected to the power supply. All field wiring and
components must be installed by an installer and must comply with the
applicable legislation.
Warning
A main switch or other means for disconnection, having a
contact separation in all poles, must be incorporated in the
fixed wiring in accordance with the applicable legislation.
Before connecting the electrical wiring, check the following points:
use copper wires only,
all field wiring must be carried out in accordance with the wiring
diagram delivered with the unit,
never squeeze bundled cables and be sure that cables do not
come in contact with the piping and sharp edges. Be sure no
external pressure is applied to the terminal connections,
be sure to establish an earth. Do not earth the unit to a utility pipe,
surge absorber, or telephone earth. Incomplete earth may cause
electrical shock,
be sure to install an earth leakage detector in accordance with the
applicable legislation. Failure to do so may cause electric shock
or fire. The earth leakage detector is a field supplied part,
be sure to install the required fuses or circuit breakers. The fuse
or circuit breakers are field supplied parts.
Information
The equipment described in this manual may cause
electronic noise generated from radio-frequency energy.
The equipment complies to specifications that are designed
to provide reasonable protection against such interference.
However, there is no guarantee that interference will not
occur in a particular installation.
It is therefore recommended to install the equipment and
electric wires keeping proper distances away from stereo
equipment, personal computers, etc.
In extreme circumstances a distance of 3 m or more is
required.
Electrical characteristics
Model
Phase
Frequency (Hz)
Voltage range (V)
Voltage tolerance (V)
Maximum running current (A)
Overcurrent fuse (A) (field
supply)
Table 3.2: Electrical characteristics
(a)
In case of common power supply to more than one unit (as illustrated in figure 13: "Group
control or use with 2 remote controllers"), keep total current of interconnection wiring
between units less than 12 A. Branch the line outside the terminal block of the unit in
accordance with electrical equipment standards, when using two power wires of a gauge
greater than 2 mm². The branch must be sheathed in order to provide an equal or greater
degree of insulation as power supply wiring itself.
FWC
Fan coil units
4PW64525-1B – 2014.03
FWC
1N~
50
220-240
±10%
0.9
(a)
16
Prepare the installation of the fan coil unit
Specifications for field wiring
Wire
Power supply
H05VV-U3G
wiring
Remote
Sheathed wire
controller and
2 conductors
unit
transmission
wiring
Table 3.3: Field wiring specifications
(a)
Only in case of protected pipes. Use H07RN-F in case of no protection.
(b)
Run electrical wiring through a conduit to protect against external forces.
(c)
Use double insulation wire for remote controller (sheath thickness: ≥1 mm) or run wires
through a wall or conduit so that the user cannot come in contact with them.
(d)
This length is the total extended length in the system in case of group control. See figure
13: "Group control or use with 2 remote controllers".
Prepare the installation of the fan coil unit
3.6.
Prepare the installation of optional
equipment
Air flow directions
For this unit you can select different air flow directions. It is necessary
to purchase an optional blocking pad kit to limit the air discharge to 2,
3 or 4 (closed corners) directions.
Select the air flow directions best suited for the room and point of
installation. For air discharge in 2 or 3 directions, it is necessary to
make field settings by means of the remote controller and to close the
air outlet(s) as illustrated in figure 1: "Airflow directions". (
direction)
a
All-round air discharge
b
Air discharge in 4 directions
c
Air discharge in 3 directions
d
Air discharge in 2 directions
Information
Air flow directions as shown merely serve as examples of
possible air flow directions.
For other preparations related to the installation of optional equipment
refer to
"Install optional equipment" on page
Install the fan coil unit
Install the fan coil unit
4
Install the fan coil unit
Install the fan coil unit
4.1.
Unpack the unit
When receiving the unit, please check its state. Verify if any damage
occurred during transport. If the unit and/or packing are damaged at
delivery, report this immediately to the carrier's claims agent.
Identify model and version of the unit from the indications stated on
the carton packing.
Leave the unit inside its packing until you reach the installation site.
Where unpacking is unavoidable, use a sling of soft material or
protective plates together with a rope when lifting, this to avoid
damage or scratches to the unit.
Warning
Tear apart and throw away plastic packaging bags so that
children will not play with them. Children playing with plastic
bags face danger of death by suffocation.
When unpacking the unit or when moving the unit after unpacking, be
sure to lift the unit by holding on to the hanger bracket without exerting
any pressure on other parts.
Size (mm²)
Length
(a),(b)
According to
—
the applicable
legislation.
Max. 4.0
0.75-1.25
Max. 500 m
(c)
9.
Installation manual
(d)
air flow
4
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