F Ield Wiring - Daikin FWECSA Manual De Instalación Y Operación

Exploded view of the unit
1 Water drip tray
2
Heat exchanger module
3
Switch box
4 Terminal strip
5 Anti-vibration isolator
6
BLDC 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.
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.
Installation and operation manual
8
(See figure 3)
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
1figure 8 FWP + controller FWEC3 (integrated inverter)
2figure 9 FWP + controller FWECSA
The motors of the units have 0-10V signal
The common wire of the motor is the blue one (BU).
If the common wire is not connected correctly, the motor would be
damaged irreparably.
Wiring parts table
(See figure 8, 9)
BK .......................Black = GND inverter
BU .......................Blue = neutral inverter motor
BN .......................Brown = inverter motor phase
RD .......................Red = 0-10V inverter signal
L ..........................Phase
PE .......................Ground
N .........................Neutral
- - - - ....................Field wiring
F ..........................Fuse (field supply)
IL .........................Line switch (field supply)
M .........................Motor
COM ....................0-10V Output Common
GYNE ...................Yellow/green = ground (PE)
t
est rUn
Check that the equipment has been installed so that it guarantees the required
slant.
Check that the condensate discharge is not clogged (by rubble deposits, etc.).
Check the seal of the hydraulic connections.
Check that the electrical wiring is perfectly tight (perform this check with voltage
OFF).
Be sure that the air purge of the heat exchanger has been carried out correctly.
Turn on the power supply and check the unit running.
U
se
To use the unit, refer to the instructions in the installation and operation manual of
the controller. Dedicated controllers are available as accessory.
FWP
Ducted fan coil units
UT66002382