Installation - AERMEC VMF-E19 Manual Del Usuario

INSTALLATION

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
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.
• Follow the wiring diagrams supplied
with the device and shown in this
documentation when making the
connections.
• The wiring diagrams are subject to
continuous updates, so it is essential
to use those on the machine as your
reference.
• 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
143
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.
• 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.
• Warning: the diagram showing the
connections of the electronic board to
the control board is printed inside its box
cover.
• Make an earth connection for the indoor
unit.
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