Installation Of Flexible Flanges (Optional Accessory); Installation And Connecting Of The Water Chiller To The Cooling Source (Optional Accessory); Installation And Connecting Of The Direct Chiller (Optional Accessory); Installation And Connecting Of The Electric Heater / Pre-Heater Epo-V (Optional Accessory) - Airflow Duplexvent Flexi DV1600 Installation, Use And Maintenance Manual

5.13 Installation of flexible flanges (optional accessory)

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During the mechanical installation of flexible flanges follow the manual supplied.
5.14 Installation and connecting of the water chiller to the cool source (optional accessory)
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During the mechanical installation of the water chiller follow the manual supplied.
The following rules should 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 may fall below 0°C.
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Maximum permitted operating pressure 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 connecting of the direct chiller (optional accessory)

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During the mechanical installation of the water chiller follow the manual supplied.
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During the connection of the direct chiller follow the instructions of the supplier of condensation units and connecting pipes.
5.16 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.
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Electrical connections may only be carried out 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 the EOP-V heater as they cannot be installed in
randomly selected locations! For specific conditions see the manual included.
5.17 Installation and connecting of manostats to control constant flow rates and pressure
(optional accessory)
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During mechanical installation and electrical connection follow the manual supplied.
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 networks
TN-C, TN-S and TN-C,S. The appliance may only be connected by a qualified electrician. The appliance is provided with
external connections for equipotential bonding.
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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.
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The power supply line to the equipment must be fitted with a disconnecting device - a service switch for disconnecting from the
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 standard with this unit 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.
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The controls are described in a separate document entitled "Operating the control system".
7 . H y g i e n i c i n s t r u c t i o n s f o r t h e a p p l i a n c e a s p e r V D I 6 0 2 2

7.1 General instructions


The appliance has been manufactured in a hygienic design that complies with all requirements of the VDI 6022 standard for the
hygiene of HVAC devices. In order to meet those requirements during operation it is essential to ensure for the appliance to be
operated, maintained, inspected and cleaned by sufficiently qualified personnel in accordance with instructions contained in the
operation and maintenance manual. It is also essential to ensure for the remaining components of the HVAC system (HVAC
distribution systems, distribution elements, ancillary devices, noise silencers etc.) to meet all hygienic requirements of the VDI
6022 standard and be operated in compliance with those requirements.

An HVAC duct including other accessories with its own independent operation controls must be connected to the fresh-air
suction side of the appliance in front of the inlet to the appliance to ensure in compliance with the VDI 6022 standard the
appropriate treatment of suction air to eliminate the dampening of the air filter. If no air duct is fitted or does not contain such
accessories, the appliance should be put out of operation in periods when the dampening of the air filter may occur (thick fog,
flying snow etc.)!

Operators should be familiar with the tasks and functions as well as the individual components of the appliance.

The appliance must be regularly inspected, cleaned and maintained by sufficiently qualified personnel (see the following
chapter).

Regardless of their qualifications, personnel must undergo hygiene training (see the following chapter).
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