Connections; Electrical Connections; Protective Earth And Earth Bonding Connections; Connection To The Water Supply - LIBRETTO EM E6/11-D Instalación, Uso, Mantenimiento

7. CONNECTIONS

The position and dimensions of connections are given in the installation diagram at the end of this
manual.

ELECTRICAL CONNECTIONS

Check if the appliance is designed to operate at the voltage and frequency of the power supply present
on site. Check the details given on the appliance dataplate and plaque near the terminal board.
Install upstream of the equipment in an easily accessible place, an all-pole disconnecting device with a
contact gap of allowing full disconnection under the conditions of overvoltage category III.
A flexible rubber cable with insulation specifications not lower than type H05 RN-F must be used for
connection.
Connect the power supply cable to the terminal board as shown in the wiring diagram supplied with the
appliance.
Secure the power supply cable with the cable clamp.
Protect the power supply cable on the outside of the appliance with a rigid plastic or metal pipe.
If the power supply cable is damaged, it must be replaced by the manufacturer or his service centre or
by a person with similar qualifications to prevent any risk.
THE SYMBOL " HIGH VOLTAGE" IS PLACED ON A PANEL THAT GIVES ACCESS TO A PART
WITH HIGH VOLTAGE.

PROTECTIVE EARTH AND EARTH BONDING CONNECTIONS

Connect the appliance to an efficient ground circuit. Connect the earth conductor to the
terminal with the symbol next to the main terminal board.
Connect the metal structure of the appliance to the equipotential node. Connect the
conductor to the terminal with the symbol on the outside part of the bottom.

CONNECTION TO THE WATER SUPPLY

Install a mechanical filter and a shut-off valve upstream of the appliance in an easily accessible point.
Make sure the water circuit is free of ferrous particles before connecting the filter and the appliance.
Seal any unused connectors with a plug.
Once the appliance has been installed, check for gas leaks at the connection points.

WATER FEATURES

The appliance must be connected to a potable water supply. The water inlet pressure must be between
150 kPa and 300 kPa. Use a pressure reducer if the inlet pressure is above the maximum permitted
level.
Water features should definitely be within the limits set out below.
In order to prevent corrosion, which is extremely damaging for the equipment, the water features must
absolutely be within the values indicated below.
Hardness: between 6 ° and 9 ° TH
PH: higher than 7.5
Chlorides: lower than 30 ppm
These values are important for the realization of a proper water treatment system!
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