Daikin FWI-AT Serie Manual Del Usuario página 30

Ū The manufacturer assumes no responsibility if safety and ac-
cident prevention regulations are not observed.
Note: the diffusion of air will not be as efficient if the room is
more than 3 metres high.
» Installation FWI-A 02-03-04
1
1
Electric box
2 Water connections
3 UNIT DESCRIPTION
Comfort, low noise, and efficiency in perfect harmony!
The new series of hydronic cassette units FWI-A, with invert-
er-controlled permanent magnet EC motor, consists of six mod-
els (02-03-04-06-07-08) for 2-pipe systems and four models (02-
04-06-08) for 4-pipe systems.
The engineering of the unit makes it possible to develop up to 5
kW in the cooling mode in a standard 600x600 mm modular sus-
pended ceiling and over 10 kW in the 860x860 mm modularity,
with exceptionally low noise levels in the phases for maintaining
interior comfort.
The well-known advantages of EC motors are combined with
GreenTech technology (in models 10, 20, and 30), which inte-
grates the inverter directly into the fan drive assembly.
FWI-A leverages the entire FWEC3A, FWECSA and FWEC10 mi-
croprocessor controller platform that incorporate sophisticated
adjustment logics based on air temperature, air humidity, and
water temperature.
These benefits translate into greater accuracy in achieving and
maintaining the desired comfort conditions through appropri-
ate modulation of the fan speed as well as the reduction of noise
emissions, which adapt to the actual thermal load.
Lastly, electricity consumption is reduced by up to 75% in com-
parison to conventional fixed-speed AC motors.
The suspended ceiling unit houses all the components, heat ex-
change coil, fan drive assembly, and condensate collection and
drainage system. Its structure is designed for introducing fresh
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FWI-AT/AF
» Installation FWI-A 06-07-08
1
2
1
Electric box
2
Water connections
OPERATING LIMITS
Thermal carrier fluid: water
Water temperature: 5°C ÷ 80°C
Air temperature: 5°C ÷ 43°C
Supply voltage: 230 V - 50 Hz
Maximum water pressure during operation: 10 bar
Relative humidity limit of the ambient air:RH < 75% not
condensing
air into the space, mixing it with recovered air, and distributing
the treated air from the cassette unit to adjacent rooms.
Two tipes of intake and oulet air grilles:
FPAN Grill: ABS material, available in RAL9003 guarantee opti-
mal integration into the suspended ceiling panels.
With easy access to air filter for cleaning operations.
The unit can be supplied complete with valves, including pres-
sure-independent balancing and control valves, the use of
which significantly reduces commissioning time.
FCND02A gille : design grille with Coandă effect: DIBOND ma-
terial, thanks to Coandă effect, the air is expelled parallel to the
ceiling, cooling the walls before mixing with the ambient air at
the ground. In this way the operation will be optimized during
the summer, ensuring more comfort for the occupants.
AVAILABLE VERSIONS
FWI0*ATN - Unit with one coil for 2-pipe systems
FWI0*AFN - Unit with one coil for 4-pipe systems
Accessories supplied with the unit
Ū Auxiliary water drip tray;
Ū Installation and use manual;
Ū Brackets for securing the unit.
2