Main Components; Component Description - AERMEC VED I Serie Manual De Uso E Instalación

6.

MAIN COMPONENTS

1 Right side (load bearing)
2 Discharge air flange
3 Heat exchanger coil
4 Condensate drain tray / Front panel
enclosure (upper)
5 Left side (load bearing)
6 Coil vent/drain
Example:
VED532I
5
6
7
9
7
6
8
9
6.1.

COMPONENT DESCRIPTION

SYSTEM TYPES
The fan coil units are designed for 2 and
4 pipe systems with constant or variable
flow
For 2 pipe systems versions are available
with:
- standard main coil
- oversized main coil.
For 4 pipe systems versions are available
with:
- standard and oversized main coil for hot
water heating only
- standard and oversized main coil for cool-
ing only
- hot water heating only coil supplied as an
accessory for the sizes VED030I, VED130I,
VED230I and VED330I.
AIRFLOW
The variable airflow must be controlled
from a device with a 0-10V output compat-
ible with the unit (not included). Aermec
provides the control devices as an acces-
sory.
HEAT EXCHANGER COIL
Low pressure drop coils with copper tubes
mechanically expanded into wavy alumini-
um fins. The headers are fitted with female
connections and air vents at high points.
7 Hydraulic connections
8 Condensate discharge
9 Mounting slot
10 Air filter (intake)
11 Filter lock
12 Centrifugal fan
13 Brushless inverter motor
4 3 2
10 11
12
FILTER SECTION
Air intake filter, easily extracted for period-
ic cleaning. Manufactured from cleanable
materials and can be vacuum cleaned.
Filtration class G3. Flame retardant to M1
NF F 16-101.
BRUSHLESS ELECTRIC MOTOR WITH
INVERTER CONTROL
The electric motor "brushless with Hall
effect sensors" and the control system
used by the AERMEC VED fan coil units
provide the most sophisticated mechani-
cal and electronic technology developed
internally within the company. This is a
permanent magnet motor with low start-
ing current and easy speed control. It does
not create electromagnetic disturbances.
By not having brushes there is less friction
and wear.
Through the dedicated inverter device it is
possible to continuously control the speed
and torque on the rotor by simply acting
on the current of the stator.
The motor is isolated with elastic supports
and the steel shaft is mounted on bush-
ings, salt spray test is in accordance with
ASTM B117/64.
The electric motor "brushless with Hall
14 Front panel enclosure (lower)
15 Electrical connections
11
13 12 14
effect sensors" from AERMEC offer many
advantages over traditional alternating
current motors and hybrid motors with
inverter (without Hall effect sensors) nor-
mally used on other variable flow fan coil
units:
- Reduced wear
- Possibility to control rotational speed
precisely (0-100%)
- Higher energy efficiency
- Higher reliability and lifetime
- Low magnetic noise
- Continuous position control of the rotor
meaning higher efficiency and guaranteed
and controlled starting
- Guaranteed minimum speed of 90 rpm
(for thermodynamic reasons with limit is
raised to 200 rpm).
The electric motor is isolated with elastic
supports.
STRUCTURE
Manufactured in galvanised sheet steel of
adequate thickness. Class 1 internal insula-
tion.
Posterior part has fixing holes for installa-
tion.
Intake and discharge openings are
designed to connect the fan coil unit to
1
8
15
25
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