Introduction; Intended Use; Occupational Safety; Installing The Unit And Understanding Its Functions - DÜPERTHAL TEA-18 II ATEX H Manuel De L'utilisateur

D Ü P E R T H A L S i c h e r h e i t s t e c h n i k G m b H & C o . K G
Frankenstr. 3
63791 Karlstein, Germany
1

Introduction

Dear Customer:
Thank you very much for purchasing our product. We are confident that
it will meet your expectations and perform satisfactorily in your daily
routines.
The development, manufacture, and check of the ATEX-compliant ex-
haust airflow unit with fan has been guided by our concern to offer a
device characterized by superior operation safety and user-friendliness.
The blower was manufactured and checked according to state-of-the-art
technology and widely recognized safety regulations. It is approved for
use in explosible atmospheres.
1.1

Intended Use

The exhaust air extractor with fan has to be used in EX-free areas and is
intended exclusively for the positive extraction of exhaust air from safety
cabinets for storage installed indoors, zone 2 for gases belonging to
temperature classes T1 - T4, gas type IIA or gas type IIB. The product is
suitable only for fluid flows not transporting any particles or foreign bodies.
The maximum temperature of extracted medium is 50°C (122°F).
Only such substances are acceptable for extraction that do not com-
promise the PPs connector sleeve, the PVC suction hose, and the fan.
The relevant list of substances can be provided by the manufacturer in
a digital format.
Any and all uses other than the above-described is prohibited
and may cause hazardous situations, potentially danger of
death, damage to the system and material property, and will
cancel any and all warranty and liability for the product on the
Caution
part of its manufacturer and distributor.
1.2

Occupational Safety

The installation and operation of the product must be performed in
compliance with Germany's technical rules for the storage of flammable
liquids, TRbF 20, Appendix L, the EN 294 standard, and all applicable
international and national codes and standards. The design of the product
is such that the fan blades are off-touch. Modifications to the enclosure or
the suction and exhaust hoses that may make the fan blades accessible
to the touch when the unit is in normal use are prohibited.
The product must never be used if not totally installed, with
properly set suction and exhaust hoses.
Electrical work on the product must only be performed when
the exhaust air extractor was previously disconnected from
Caution
power and/or locked against unwanted reapplication of power.
This also holds for electrical work on the extraction system of
which the exractor may be a part.
2

Installing the Unit and Understanding its Functions

2.1

Installing and Checking out

1. Connect the extractor to the air extraction system on site or the
safety cabinet to be served:
Connect the external ventilation system or the exhaust outlet of the
cabinet to the unit, e.g., with a flexible sleeve fitting, making sure
the connection is under no strain, and make a tight connection using
Version January 2011 2.00.339, 2.00.340 User's Manual 5
EN