SystemAir EX 140A, Operation And Maintenance Instructions

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Installation |
7
5 Installation
Always read the safety information before installation. The fan is intended for permanent installation. Installation re-
quires an inspection of the hazardous area to be done according the regulations and classification standards (within the
EU, EN 60079-10).
Installation according EN 60079-14 deemed to meet the installation requirements in the EU. Compliance with the Direc-
tive 2014/30/EU "Electromagnetic Compatibility" applies only when the product is directly connected. Integrated into
an electrical system or combined with other components (e.g. controls/control equipment) the installer/plantholders
are responsible for compliance.
The installation must be set up at a safe distance to transmitter units or protected with suitable screens.
Before starting installation check for any transport damage and that the impeller do not touch parts of the fan housing.
Ambient temperature and the conveyed air temperature should be between -20°C and +60°C for all versions. EX
140A/180A are intended for operation within the specified temperature range. The motor is cooled by a integrated
cooling fan which openings must not be covered, min. distance to the air intake is 40 mm (see figure 1). Avoid heat
sources near the motor and the motor air intake.
The fan can be mounted in any direction. When the motor air intake is mounted upwards the intake must be protected
against falling objects/liquid. Install EX 140A/180A in the correct air direction (arrow on housing), see figure 2. The fan
must be installed so that service and maintenance can be performed easily and safely. Make sure the fan is firmly fixed
and securely anchored. EX 140A/180A must be installed so that vibrations can not be transmitted to the duct system
or building structure.
Fig. 2
Disturbing noise can be avoided by installing silencers (accessory).
Duct installations must be carried out so that enclosure class IP20 (mesh width below 12 mm) is fulfilled on the inlet
side and outlet side. Parts that ensure the IP rating must be properly designed with regards to strength and material.
Rust particles must not occur in the airflow.
Components mounted before and after the fan or those that are in the direct air stream, may not have unprotected alu-
minium or steel surfaces. It requires a surface coating that meets minimum scratch test level 2 according to EN ISO
2409.
Mains circuit breaker must precede the fan. Electrical connections are made according to the wiring diagram, chapter
4.2. All fans for 3-phase (Δ/Y) are supplied from factory wired for 400V 3-phase (Y). If electrical connections are made
inside the explosive environment then the used components must be intended for the relevant Ex environment.
If the distance to moving parts is such that one can touch the rotating part then a protective grille has to be installed,
use an appropriate screw or rivet. Fan may not be mounted in direct sunlight.
Connection cable to the fan should be installed so that it is mechanically protected and suitable for use in the surround-
ing environment. Connection cable for the EX 140A/180A should have a diameter of 6.5 to 12 mm and a cross section
of 1.5-2.5 mm
2 . The junction box on the motor is designed for the same environment as the fan. For external grounding
of the chassis ground cable should be mounted on the grounding screw on the motor (figure 1).
Cleaning the fan is to be done after completion of assembly.
135371 | A007