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Daikin FWH-AT Serie Manual De Instalación, Uso Y Mantenimiento página 31

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3.2
MAIN COMPONENTS
Structure
Made of galvanised steel sheet with internal polyurethane foam
coating and external fl ocked PES to guarantee heat and sound
insulation. Fresh air can be introduced into the room directly
through the unit due to the provision of connections for neutral
or mixed introduction. Accessories are available for connection
to ducts. There are systems on the unit for anchoring it to the
ceiling. The electrical wiring is housed in a containment box and
is easily accessible from the side for easy connection.
Air fi lter
Honey-comb polypropylene washable air fi lter, easily removable
for maintenance operations.
Heat exchanger
Copper pipe and high effi ciency aluminium fi ns secured to the
pipe by mechanical expansion. With at least two rows in the
models for 2-pipe systems, it is available in the 2+1 confi gura-
tion in the models for 4-pipe systems. The coil comes complete
with manual air vent valves. On request, valves can be connect-
ed to the coil to regulate and balance the operation of the unit.
Fan drive assembly
Multi-speed ON/OFF electrical motor, directly connected to a
centrifugal fan with backward-curving blades with profi le opti-
mised for stable operation at all speeds.
Condensate collection system
Located under the heat exchanger, the main drip tray is made of
polystyrene and is inserted inside the profi les optimised for the
distribution of air in the room. The supply is completed by the
auxiliary water drip tray for the collection of condensate from
the regulating valves.
Condensate discharge system
The condensate drainage pump, with built-in check valve, can
lift the condensate up to 0.9 m from the exit point from the unit.
The operation of the pump is controlled by a fl oat switch with
three levels of action that activate it and stop it during normal
operation. If the critical water level inside the main drip tray is
3.3
ACCESSORIES
Electronic microprocessor control panels with display
FWTOUCH
2.8" touch screen user interface for FWECSA control
FWECSAP
Circuit board for FWECSA control
FWECSAC
User interface with display for FWECSA controller
FWEC1A
FWEC1A electronic controller with display
FWEC3A
Microprocessor control with display FWEC3A
FWEC2A
FWEC2A electronic controller with display
FWHSKA
Humidity sensor for FWEC (2A e 3A), FWECSA
FWTSKA
Water sensor for FWEC1A-2A-3A and FWECSA controllers
Electronic microprocessor control panels
FWEC2T
Electronic controller for AC fan control and one ON/OFF 230 V valve
FWEC4T
Electronic controller for AC fan control and two ON/OFF 230 V valves
Power interface and regulating louver controllers
exceeded, an alarm signal closes the control valves, stopping the
fl ow of water inside the exchanger.
FPAN grille
It is square shaped for the intake and diff usion of air in the space,
and it is made of ABS, colour RAL9003. The air intake louvre can
be opened for access to the air fi lter. Air is diff used in the space
through the 4 sides, each of which is equipped with an adjusta-
ble fi n with suitable thermal insulation.
FCND02A grille: design grille with Coandă eff ect
It is square shaped with circle intake hole,it is made in DIBOND
material. The intake grille is opened for access to the air fi lter.
Air is diff used in the space through the conveyors in 4 sides and
takes advantage of the fl uid dynamic Coandă eff ect.
Thanks to Coandă eff ect, the air is expelled parallel to the ceil-
ing, 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.
Power interface for connecting in parallel up to 4 fun coil units to
EPIMSB6
the one controller
Valves
E2C2PIC/PRP
E4C2PIC/PRP PRESSURE-INDEPENDENT 2-way valves for models with 1 or 2 coils
2-way valve, ON/OFF or MODULATING actuator, 230 V or 24 V power
E2C2
supply, hydraulic kit, for model with 1 or 2 heat exchangers
3-way valve, ON/OFF or MODULATING actuator, 230 V or 24 V power
E2C3
supply, hydraulic kit, for model with 1 or 2 heat exchangers
Plenum, air intake modules, air inlet and outlet connectors and cabinets
SPFAI1A/
Spigot for introduction of mixed renewal air
SPFAI2A
PPAI02A/6A
Air outlet plenum
31
WC66000644-05

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