Daikin FWB Series, Installation And Operation Manual

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Installation and operation manual
6
FWB - FWP
Ducted fan coil units
4PW24344-1C
i
nstallation
The FWB-FWP air conditioning and hot-air heating units,
the cir
cuit 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;
n
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.
n
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
n
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.
n
The ducting, especially the outlet duct, must be insulated with
anti-condensation material.
n
Provide an inspection panel adjacent to the equipment for the
maintenance and cleaning operations.
n
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
1figure 8 FWP + controller FWEC3A
2figure 9
FWB + controller FWEC*A + power interface EPIA6 (FWB08~10)
3figure 10
FWB + controller FWEC*A + 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.
Wiring parts table
(See figure 8, 9, 10)
BK .................... Black = maximum speed
BU .................... Blue
BN.................... Brown
GY ................... Grey
GN ................... Green
YE .................... Yellow
RD ................... Red = minimum speed
WH ................... White = common wire
- - - - ................. Field wiring
F ......................
Fuse (field supply)
IL...................... Line switch (field supply)
M ...................... Motor
3/7.................... 3 out of 7 speeds
EPIMSA6 ......... Master/Slave interface for control of up to 4 FWB and
FWP units in parallel
EPIA6 .............. Power interface
EXT.................. External auxiliary contact
RHC .................
Remote cooling/heating selector switch (centralised)
VC.................... Cold water valve (230 V ON-OFF)
VH.................... Hot water valve (230 V ON-OFF)