Main Components - AERMEC FCXI 20 AS Manuel D'utilisation Et D'installation

MAIN COMPONENTS

1 Air delivery
2 Heat exchange coil
3 Plumbing connections
4 Air vents on the coil
5 Condensate discharge
FCXI 40 U
4
3
4
3
5
11
DESCRIPTION
System types
The fan coils are designed for systems
with 2 and 4 pipes, in the versions:
- 3R: without valve;
- 3R: with water valve (VCF);
- 3R: with 1-row hot water coil (BV) and
2 valves (VCF).
Ventilation
Variable speed ventilation can be com-
manded either manually or automati-
cally from the control panel.
HEAT EXCHANGE COIL
Coil with copper pipe and aluminium fins
blocked by means of the mechanical
expansion of the pipes. The collectors
are fitted with female connections and
air vents in the upper part of the coil.
FILTERING SECTION
Filter in filtering class G2, self-extin-
guishing B1 (DIN 4102). Easily remov-
able and made from regenerable mate-
rials. May be cleaned by washing.
FANS
This consists of double suction cen-
trifugal fans with lengthways blades
to obtain a high air flow with a low
number of revs. The fans are connect-
ed directly to the "brushless" electric
motor cushioned with elastic supports.
BRUSHLESS ELECTRIC MOTOR WITH
INVERTER CONTROL
The "brushless electric motor with
Hall sensors" and the control system
6 Tray
7 Air filter (suction)
8 Fan
9 Electric motor with control Inverter device
10 Electrical wiring
1
2
6 8
used in the AERMEC FCXI fan coils
is a combination of sophisticated
technologies in the field of mechanics
and electronics entirely developed
within the industrial group. This
i s a p e r m a n e n t m a g n e t m o t o r
with low starting current and easy
speed adjustment. Not affected by
electromagnetic interference. Th e
fact that it is brushless allows lower
friction and less wear. With the
special inverter device, it is possible
to control the speed and torque of the
rotor continuously, just by means of
the stator currents.
is cushioned with elastic supports and
the steel shaft is mounted on
and resistance to salt fog is tested in
accordance with ASTM B117/64.
The "brushless electric motor with Hall
sensors" used in AERMEC FCXI mod-
ulating fan coils has huge advantages
over conventional AC motors and hybrid
inverter motors (without Hall sensor) nor-
mally used on other modulating fan coils:
- Reduced wear and tear
- The possibility to regulate the rotation
speed in a precise, continuous manner
(0-100%)
- Higher energy yields
- Longer life and greater reliability
- Low magnetic noise
- Continuous monitoring of the rotor
position implies greater efficiency, and
11 Load-bearing structure
12 Head with adjustable fins (RAL7044)
13 Covering cabinet (RAL9002)
14 Intake grille (RAL7044)
15 Lower closure (RAL7044)
12
9 8
guaranteed and controlled starting
- Guaranteed minimum speed 90 rpm
(for thermodynamic reasons, this limit
was raised to 200 rpm).
LOAD-BEARING STRUCTURE
Made of galvanised sheet iron of a suit-
able thickness. There are holes on the
back for fixing the device to the wall.
The fan unit is closed at the front with
a metal panel. Every device is equipped
with condensate collection trays (for
both vertical and horizontal installation).
CONDENSATE DRAIN
Every device is equipped with conden-
The electric motor sate collection trays, with a connection
for draining the condensate produced
bushings by the unit in cooling mode.
WATER CONNECTIONS
The connections, located on the left
hand side, are female. The coil may
also be rotated.
CABINET
Casing in RAL9002
Grey colour RAL7044
The casing is made of galvanised steel,
varnished with polyester powders to
guarantee high resistance to rust and
corrosion. The feet (accessory for FCXI_
AS) are in plastic, colour RAL7044.
CONTROL PANEL
Use a control panel with thermostat and
ventilation speed control, with 0-10V
outputs. Refer to the manual of the
accessory for installation.
IFCXIUASLJ 1210 - 5383600_04
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