S&P UVF ECOWATT Series Manual page 28

7.7. CONNECTING THE UNIT TO THE DUCT SYSTEM
• Never use the unit as a support or weight-bearing structure for ductwork. Ducts must have its
specifi c supports that prevents the weight of these falls on the UVF ECOWATT.
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• Connect the unit to the air ducts using fl exible connectors to prevent vibrations from being trans-
mitted to the duct system.
• Check to make sure air intake and fl ow are not being blocked and that there are no obstacles
avoiding the adequate air circulation. Failure to do so will affect the effi ciency of the system.
7.8. ELECTRICAL CONNECTION
IMPORTANT!
To avoid that the fi lters included in the unit get dirty, these fi lters are supplied in a plastic bags.
Before switching on the unit, it is necessary to remove these bags and reassemble the fi lters,
making sure that the air direction matches the one indicated in the fi lter frame.
• The installation must be carried out by qualifi ed personnel.
• Cables will be installed whose section complies with current directives and prevent a heating of
these and a voltage drop higher than that allowed by the product. The current regulations will be
complied and at all times the existing specifi cations will be followed in the installation project.
• Before connecting the cables, check that the electrical installation is disconnected and that there
is no electrical voltage in the installation.
• Once installed, the unit must meet the following Directives:
− Low Voltage Directive 2014/35/EU
− Machinery Directive 2006/42/EC
− Electromagnetic Compatibility Directive 2014/30/EU
• Once these operations have been carried out, it is necessary to verify the tightening of all the
electrical connections (a badly tightened cable can cause irreparable damage).
• Check that the connection to earth has been correctly carried out and that the thermal and
over-current protections have been regulated according to the values established on the name-
plate.
The power supply is made in the external terminal box. In no case it is necessary to open the
fan access register during electrical connection work. This register should only be opened for
maintenance tasks: Fan cleaning or replacement.
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