Network Settings; Electrical Wirings - AERMEC VMF-E0X Manuel D'utilisation Et D'installation

NETWORK SETTINGS

MASTER
FCX + VMF-E0X
FCX + VMF-E0
+
VMF-E2/VMF-E2H/VMF-E4
VMF-E2 VMF-E2H VMF-E4
- +
E4
VMF-E0X
VMF-E0
TTL NETWORK
- Consisting of up to 6 fan coils (one
Master and 5 Slaves)
- Maximum TTL line length 30m.
The master fan coils are equipped
with a control panel and an elec-
tronic board with microprocessor
which has outputs in order to be

ELECTRICAL WIRINGS

The essential indications to install the
device correctly are given here.
The installer's experience will be
necessary however, to perfect all the
operations in accordance with the
specific requirements.
Before beginning the installation,
carefully read the information below:
• WARNING: check that the power supply
is disconnected before carrying out any
procedures on the unit.
• WARNING: before carrying out
any work, put the proper individual
protection equipment on.
• WARNING: the device must be installed
in compliance with national plant
engineering rules.
• WARNING: the electrical wirings
and the installation of the units
and their accessories must only be
carried out by people possessing the
technical/professional skills for system
installation, transformation, extension
and maintenance, and who are able to
check these aspects in terms of safety
and good working.
In particular, the electrical wirings require
checks relating to:
- measurement of the electrical system
insulation strength.
- Continuity of the protection wires.
• WARNING: install a device, main
switch, or electric plug so you can fully
disconnect the device from the power
supply.
• WARNING: the unit is connected to
the electrical mains. Any intervention
by unqualified and untrained personnel
18 AVMFE0LJ 1704 - 6795744_00
TTL Line
Max 30m
VMF-E0X VMF-E0X
VMF-E0 VMF-E0
inserted in a TTL network.
The Slave fan coils are equipped with
an electronic board with micropro-
cessor (VMF-E0X or VMF-E1X acces-
sory) which has outputs in order to
be inserted in a TTL network.
All the fan coils of the TTL network
must have the same type of accessory.
could cause injury to the worker
and damage to the equipment and
surrounding environment.
• Check the mains voltage complies with
the one requested for the device to be
installed.
• The electrical wiring measurements
must be carried out according to the
regulations in force, taking into account
the system load.
• For the power supply, use undamaged
cables with a section suitable for the
load. You are advised to make the
connections using a single cable for
each one. Do not make connections on
the power supply cable: use a longer
cable. Junctions can cause overheating
and/or fires.
• Only use the appropriate tools for the
electrical wirings.
• Make an earth connection for the indoor
unit.
• Use twisted cables for the connections
to the wired panel.
• Do not attempt to repair the unit
yourself. An incorrect intervention can
cause electric shocks and/or fires, so
you are advised to contact your local
After Sales Service. For any installation
or technical intervention, please contact
your local After Sales Service.
• All the cables must be piped or ducted
until they are inside the fan coil. The
cables leaving the pipe or raceway must
be positioned in such a way that there
are not traction or twisting stresses and
they are anyway protected from outside
agents.
SLAVE
FCX
+
VMF-E0X
VMF-E0
VMF-E0X
VMF-E0
The settings (or set points) of the
panel on the main fan coil (Master)
are received by the other fan coils
(Slaves).
The units connected to the TTL net-
work are automatically recognised
(they require no configuration pro-
cedure).
• Stranded cables can only be used with
cable terminals. Check the cable strands
are well inserted.
• In installations with a 3-way valve, the
minimum water temperature probe must
be relocated from its standard housing
in the coil, to the delivery pipe upstream
from the valve. When relocating the
water probe, the standard sensor must
be replaced with an accessory VMF-SW
sensor, fitted with a cable of suitable
length.
• The connections must be made to the
connectors on the electronic board.
• The electronic board is protected with a
plastic box and a cover that can easily
be removed with the help of a tool.
• The wiring diagrams are subject to
continuous updates, so it is essential
to use those on the accessory as your
reference.
• Warning: the diagram showing the
connections of the electronic board to
the control board is printed inside its
box cover.
• WARNING: make an earth connection
for the system.
It is compulsory to connect the fan coil
frame to the earthing system.
It is compulsory to tighten the screw that
fixes the thermostat box on the side of
the fan coil, as this is what allows the
earth connection of the entire system.
VMF-E0X VMF-E0X
VMF-E0 VMF-E0