Hydraulic Connections; Electrical Wirings - AERMEC VED Series Use And Installation Manual

HYDRAULIC CONNECTIONS

- Make the hydraulic connections.
WARNING: Always use a wrench and
counter-wrench to fix the pipes.
Refer to the size data for the position,
type and diameter of the hydraulic
connections.
You are advised to adequately insulate
water lines and/or fit the auxiliary
condensate drain tray (available as an
accessory), to prevent dripping during
the cooling function.
After installing, check the seal on the
connections.
Warning: Bleed the hydraulic system.
The relief valves are positioned at
the top of the coil near the hydraulic
fittings.
Warning: To discharge the unit, use the
exhaust valves located in the lower part
of the coil near the hydraulic fittings.

ELECTRICAL WIRINGS

The unit must be connected directly to
an electrical outlet or to an independ-
ent circuit.
WARNING: it is compulsory to con-
nect the power cables Phase (L) and
Neutral (N) to the respective termi-
nals, do not to reverse the connec-
tions, and observe the wiring diagram.
Install a device, main switch, or elec-
tric plug so you can fully disconnect
the device from the power supply.
To protect the unit against short cir-
cuits, fit an omnipolar thermal-mag-
netic trip 2A 250V (IG) to the power
line with a minimum contact opening
distance of 3mm.
For installations with three-phase power
supply, the following precautions
should be considered:
1. In the presence of breakers or ther-
momagnetic switches 3P + N, the trig-
gering current must be at least 170%
of the total load absorbed by the fan
coils for each phase.
2. The section of the neutral wire must
be of a dimension taking into consid-
eration the operating current equal to
170% of the total load absorbed by
the fan coils for each phase.
CHARACTERISTICS OF THE
CONNECTION CABLES
Use H05V-K or N07V-K type cables
with 300/500V with insulation, piped
or ducted.
VED is supplied with connections to terminals 5 - 4 -3.
To make use of the higher speeds (terminals 2 and 1),
disconnect the wires from the terminals of the default speeds
and connect them to the terminals of the desired speed.
The three speeds must always be adjacent.
IVEDLJ 1107 - 4880900_01
20
IN
B
H O
2
B
A
A
OUT
Use a cable with a minimum section of
2
1mm .
All the cables must be piped or ducted
until they are inside the fan coil.
The cables leaving the pipe or raceway
must be so positioned that they are not
pulled or twisted and are anyway pro-
tected from outside agents.
Stranded cables can only be used with
crimping terminals. Check the wire
strands are well inserted.
The wiring diagrams are subject to con-
tinuous updates, so it is essential to
use those on the machine as your ref-
erence.
The control panel may not be fitted on
a metal wall unless this is permanently
connected to an earthed outlet.
Before installing the control panel, read
the instructions carefully and config-
ure the panel if necessary. Some con-
trol panels require the combination
with components supplied as acces-
sories, check availability.
WARNING: Make sure the control
panel supports the load of the electric
motor, otherwise placed an SIT3 inter-
face accessory between the fan and
the control panel.
WARNING: The units that are equipped
with VMF series thermostats must be
combined with an VMF-SIT interface
accessory.
Relief valves and discharge
water from the coil
When combining to control panels,
the relative wiring diagram must be
respected.
If present, connect the valve and sensor
to the control board, in the positions
indicated in the wiring diagram.
installations with a 3-way valve, the
minimum water temperature sensor
must be relocated from its standard
mounting in the coil assembly to the
delivery hose upstream of the valve.
If the highest speeds of the motor are
required, change the connection
to the control board on the electric
motor. Follow the wiring diagram.
WARNING: check whether the instal-
lation has been carried out correctly.
FOLLOW THE CHECKING PROCE-
DURES indicated in the control panel
manuals.
Motor control board
In
The 5 speeds of the motor
(5) minimum
(4 - 3 - 2 )
intermediate
(1) maximum