Daikin FWN07AATN6V3 [6/52] Installation and
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Daikin FWN07AATN6V3 [6/52] Installation and

Daikin FWN04AATN6V3 [6/52] Example for installation
FWN
Ducted fan units
4PW17549-3N
Installation and operation manual
Read this manual attentively before starting up the unit. Do not throw it
away. Keep it in your files for future reference.
Improper installation or attachment of equipment or accessories
could result in electric chock, short-circuit, leaks, fire or other dama-
ge to the equipment. Be sure only to use accessories made by Daikin
which are specifically designed for the use with the equipment and
have them installed by a professional.
If unsure of installation procedures or use, always contact your Daikin
dealer for advice and information.
Before installation
Installation and maintenance should be carried out by technical personnel quali-
fied for this type of machine, in compliance with current safety regulations.
When receiving the unit please check its state, verifying if any damage occurred
during transport.
Refer to the relevant technical sheets for installation and use of possible accesso-
ries.
Identify model and version of the unit from the indications stated on the carton
package.
Use and operating limits
Daikin shall not be held liable
- if the unit has been installed by non-qualified personnel,
- if the unit has been used improperly,
- if the unit has been used under conditions that are not permitted,
- if maintenance operations specified in this manual have not been carried out,
- if non original spare parts have been used.
Keep the unit in its packaging until it is ready to be installed, to prevent dust getting
inside.
Air sucked by the unit must always be filtered. Always use the supplied air filter.
If the unit is not used during winter, drain the water from the system to prevent da-
mage caused by the formation of ice. If antifreeze solutions are used, check the
freezing point.
Do not change the internal wiring or other parts of the unit.
Operating limits are shown here below; all other uses are considered improper:
n thermal carrier: water/glycol
n water temperature: 5°C~95°C
n maximum operating pressure: 10 bar
n air temperature: –20°C~43°C
n voltage tolerance: ±10%
n ambient air humidity limit: RH < 85 % non-condensing
Selection of location:
Equipment designed for ambient air conditioning and intended for use in civil
comfort applications
n do not install the unit in rooms where inflammable gases are present
n do not let water spray directly on the unit;
n install the unit on ceilings or walls that bear its weight. Leave enough space
all around for proper operation and maintenance of the unit, taking into ac-
count all installed optional accessories.
n never place the heating unit immediately under an electric plug-socket.
description of the eqUipment
The FWN range of air conditioning and hot-air heating units has been implemented
for conditioning rooms that require the installation of ducted units.
Main components
n Load bearing structure made of galvanized steel sheet of suitable thickness,
duly insulated with noise-proof/anti-condensing material, self-extinguishing
in class 1. Complete with inspection panels.
n Fan unit with single or dual fan wheel, dual intake centrifugal type, with stati-
cally and dynamically balanced impellers, coupled directly to the permanent
magnet electric motor. The unit is equipped with an inverter board to control
the motor, that makes it possible to precisely set the maximum rotation
speed of the motor (control signal 0-10 V).
n Terminal strip.
n Heat exchanger: high efficiency, made of copper tube and aluminium fins
secured to the tubes by mechanical expansion. They are fit with brass mani-
folds and contain air valves. The heat exchanger, normally supplied with left-
hand attachments, may be turned 180°.
n System for collecting and discharging condensate, setup either for ceiling
or wall mounting. All FWN range models may be installed either in a horizon-
tal or in a vertical position.
n Air intake module with air filter
n Air intake module
Made of galvanised steel sheet. These modules permit to filter the air sucked
up by the unit and also to connect the unit to the intake channelling.
n Air filter
Made of acrylic material, self-extinguishing in class 1, with filtering class EU
2.
The filter may be inserted or removed and is fixed by means of 2 knobs with
M4 threaded stems.
The filtering material may be washed and regenerated to maintain the rated
filtering efficiency with limited charge leaks.
n The accessory kit comprises
- Load-bearing structure made of galvanised steel sheet
- Removable cassette-type filter (to be pulled out like a drawer)
- Self-tapping fixing screws
Example for installation
(See figure 1)
1 FWN unit
2
Intake module with air filter
dimensions
n Intake module with flat filter class EU 2 (See figure 2)
n Standard unit (See figure 5)
The dimensions mentioned on the left side are related to left-hand hydraulic
attachments and the dimensions mentioned on the right side are related to
right-hand hydraulic attachments.
1 6 fast-coupling slots
2
Condensate discharge - horizontal installation
3
Condensate discharge - vertical installation
4
Hydraulic connections
4 = standard heat exchanger
4 DF = additional heat exchanger
5
Air delivery
6
Air intake
6A = supply terms
6B = changeable during installation
7
Round pre-sheared element (Ø100 mm) for fresh air intake
Installation and
operation manual
Ducted fan coil unitsFWN
1

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