Airflow Duplexvent Flexi DV 2600 Manuale di installazione, uso e manutenzione - Pagina 11
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The following rules must be adhered to during the installation of the water chiller:
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The water chiller in all versions must be filled with an antifreeze solution with sufficient thermal resistance, or it must be drained
for the period during which outdoor temperature might fall below 0°C.
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Maximum permitted operating positive is 1.0 MPa!
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The inlet of the chilled water system into the unit must be equipped with a sludge filter.
5.15 Installation and connection of the control manifold of the water-cooled chiller (optional
accessory)
During the mechanical installation and connection of the control manifold of the hot water heater. Follow the instructions supplied
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with those optional accessories.
5.16 Installation and connecting of the direct chiller (optional accessory)
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During the mechanical installation of the direct chiller follow the manual supplied with this optional accessory.
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During the connection of the direct chiller follow the instructions of the supplier of condensation units and connecting pipes.
5.17 Installation and connecting of the electric heater / pre-heater EPO-V (optional
accessory)
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During mechanical installation and electrical connection follow the manual supplied with this optional accessory.
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Electrical connections may only be made by a qualified electrician authorized to service power supply networks.
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Attention - extra care should be taken regarding the installation conditions of EOP-V heater as they cannot be installed at
randomly selected locations! For specific conditions see the manual included with this optional accessory.
5.18 Installation and connecting of manostats to control constant flow rates and pressure
(optional accessory)
●
During mechanical installation and electrical connection follow the manual supplied with this optional accessory.
6 . E l e c t r i c a l c o n n e c t i o n , c o m m i s s i o n i n g , d e s c r i p t i o n o f
c o n t r o l s
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The electrical equipment of the unit is designed following standards in effect for electrical connections to power supply network
TN-C, TN-S, TN-C,S. The appliance may only be connected by a qualified electrician. The appliance is provided with external
connections for equipotential bonding.
●
The wiring diagram of the equipment is shown in the appendix that forms an integral part of this set of documentation.
Instructions for and the diagrams of electrical connections of optional accessories are included in the documentation sets of
these accessories.
●
The power supply line to the equipment must be provided with a disconnecting device - a service switch for disconnecting from
power supply - whose opening contacts are at least 3 mm apart at all poles. This disconnecting device must be installed within
an appropriate distance from the appliance. The protection device included as a standard with delivery may act as such a
disconnecting device provided that the switchboard is located within reach of the appliance.
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Commissioning may vary depending on the type of control system. Commissioning is carried out by a trained technician
following the separate documentation set included.
●
The controls are described in the separate document titled "Operating the control system".
ATTENTION:
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The unit shall be protected using a breaker with characteristic "C"
●
In case of using additional overcurrent protection against accidental direct or indirect contact, it is necessary to use a special
circuit breaker designed for frequency inverters and switching sources. It is a protector sensitive to alternating pulsed DC
residual currents, resistant to current surges 5 kA.
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