The main control unit and the EPV vent are the only parts that have been evaluated for the certifications of the system.
For dust environments, the non-metallic membrane touchpad and display may pose an electrostatic discharge hazard. Use only water damp cloth and allow to air dry for cleaning device. Do not use or install in high charge areas. See IEC 60079-32-1 for further information.
When mounting the 5500 purge control unit, the unit shall not have the membrane keypad exposed to direct UV light sources and direct sunlight. Example methods of protection include, but are not limited to, indoor applications away from UV sources and outdoor locations under shading. As part of regular inspections, if damage to or deterioration of the membrane keypad is detected the unit is to be taken out of service for repair or replacement.
When the 5500 purge system is mounted to an enclosure, the complete installation shall be evaluated to the appropriate standards and regulations applicable for the final installation location.
The purge control unit has a temperature class (T6 or T4) that is dependent on ambient temperature. This temperature shall be considered when mounted to an enclosure, or inside of an enclosure.
All un-used entry points to the 5500 control unit shall be closed with a properly certified IECEx device suitable for the area of installation with the necessary ingress protection.
The bypass function shall only be enabled during setup or maintenance and only when the area is known to be non-hazardous.
The device shall be installed in an area of not more than pollution degree 2 as defined in IEC 60664-1.
The device must be installed in accordance with the manufacturer’s installation drawing number 116-B026.