Airflow DUPLEXBASE PT 500 Installatie-, gebruiks- en onderhoudshandleiding - Pagina 14

Blader online of download pdf Installatie-, gebruiks- en onderhoudshandleiding voor {categorie_naam} Airflow DUPLEXBASE PT 500. Airflow DUPLEXBASE PT 500 16 pagina's. Air handling units

Pagina afdrukken

4.16.

Installing electric heater / pre-heater

During mechanical installation and electrical connection follow the manual supplied with this

optional accessory.

Electrical connections may only be made by a qualified electrician authorized to service power

supply networks.

4.17.

Installing manometers to control constant flow and constant

pressure

During mechanical installation and electrical connection follow the manual supplied with this optional

accessory.

5 .

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

The electrical equipment of the unit is designed by 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 documentation supplied along with the unit.

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 - the opening contacts of which 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.

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 a separate guide on operating the control system.

The unit is to be protected using a breaker with characteristics "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

surges 5 kA.

6 .

H y g i e n i c i n s t r u c t i o n s f o r c o m p l i a n c e w i t h V D I

6 0 2 2

6.1.

General instructions

Basic hygiene-related requirements are outlined in the Chapter 4.2.

The appliance has been manufactured in a hygienic design that complies with all requirements of

the VDI 6022 standard for the hygiene o HVAC device. 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.

If long-term high relative humidity (short-term more than 90 % or more than 80 % for three

consecutive days) is likely to occur with the subsequent moistening of filters (e.g. in areas with

frequent fogs, frequent and long rains, flying snow etc.), suitable measures must be taken to

prevent microbiologic growth. Recommended measures include more frequent hygienic checks as

per VDI 6022 or shorter filter replacement intervals. Another option is the preheating of air using

residual currents, resistant to current