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5.
Technical Data
Explosion safety category:
European directives:
E
Protection against ignition:
Standards applied:
Certification document:
Ambient temperature:
Sealed against moisture and dust: IP54 according to EN 60529
Material housing outdoor unit:
Material housing indoor unit:
Connection terminals:
Earth connection:
6.
Marking
With regard to explosion safety the air conditioning unit has been assessed, modified,
certified and marked on the basis of the essential health and safety requirements of
European Directive 2014/34/EU (ATEX 114) relating to Group II Category 3 G. Compliance
with the Essential Health and Safety Requirements of the ATEX Directive is achieved
through application of the latest harmonized technical standards. The modification of the
equipment to explosion-safe does not affect the conformity to the European Directives as
declared by the original equipment manufacturer.
The specific marking of the air conditioning units depends on the applicable model of the air
conditioning system and will be created during the assessment and certification process of
the specific unit:
outdoor unit:
indoor unit:
remote control:
This marking means that the AR-051 air conditioners have been designed for industrial
applications and comply with the requirements for Category 3 equipment used in potentially
hazardous areas due to the presence of gas, mist or vapor. This makes them suitable for use
in Zone 2.
The protection techniques used are Increased Safety (ec), Constructional Safety (h), Intrinsic
Safety (ic) and Molding (mc). Gas group IIC applies. The temperature class for the ignition of
Installation manual AR-051 explosion-safe air conditioning systems
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ATEX II 3 G
2014/30/EU (EMC) and 2014/34/EU (ATEX 114)
Ex ec h ic mc IIC T3 Gc (outdoor unit)
Ex ec h ic IIC T4 Gc (indoor unit)
Ex ic IIC T6 Gc (remote control)
EN 60079-0:2018, EN 60079-7:2015 / A1:2018,
EN 60079-11:2012, EN 60079-18:2015 / A1:2017,
EN 80079-36:2016 and EN 80079-37:2016
Unit assessment certificate
-27 ˚C to +52 ˚C
Sheet steel plating
Sheet steel frame and non-metallic cover
Phoenix UK5N and USLKG5 4 mm² Ex e terminals
External, M6, stainless steel
II 3 G Ex ec h ic mc IIC T3 Gc
II 3 G Ex ec h ic IIC T4 Gc
II 3 G Ex ic IIC T6 Gc
01-2020