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8.
Opening of the housing
The unit contains no components that need direct access in normal operation. The following
warning is marked: "The air conditioning unit is modified to explosion-safe meeting ATEX
requirements II 3G. No serviceable parts inside. Refer to qualified personnel as substitution
of parts may impair the suitability for use in hazardous areas."
The housing may only be opened under non-hazardous safe conditions. To do this follow the
instructions as described under the following heading 'Repair'.
9.
Maintenance
For the maintenance of the AR-053 air conditioning units the requirements as stated in EN
60079-17 apply.
If the air conditioning unit and the connection cable are no longer in good condition or are
very dirty or damaged they must be repaired or cleaned immediately.
The power supply to the air conditioning units must be switched off and may only be restored
after the maintenance has been carried out and approved.
For the advised maintenance cycles of the air conditioning unit we refer to the operation
manual provided by the original equipment manufacturer.
10.
Repair
Repairs to the AR-053 air conditioning unit may only be executed by applying original parts
that are assessed, converted and marked by Artidor. Repairs may only be carried out by
qualified skilled workers who have been trained in accordance with EN 60079-19. Applying of
non-assessed, non-converted, non-marked parts may lead to injury to persons and damage
to equipment.
If non-original parts are used or repairs are carried out in an incompetent manner, the
explosion-safety of the air conditioning unit can no longer be guaranteed. Therefore it is
preferred that the air conditioning unit will be returned to the manufacturer or its
representative for repair.
If the housing is opened care must be taken of the following:
•
The housing must not be opened unless power is switched off prior to repair.
•
The housing must not be opened unless the area has been known to be non-hazardous.
•
If opened, the AR-053 air conditioning unit shall be dismantled in a logical sequence.
11.
Removal / re-use
For processing regarding disposal or reuse of the product and its packaging, national
disposal and environmental laws and legislation must be taken into consideration.
Installation manual AR-053 explosion-safe rooftop air conditioning system
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