Profroid QUIETCO2OL MC Notice D'instruction page 54

MAINTENANCE
The device must be checked and inspected into service, regularly, by a qualified and approved personal, following rules.
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The device will be subject to preventive maintenance (EN 378) :
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- external visual inspection of device,
- checks of device during running,
- checks of device corrosion.
Before working on pressurized components, shut down the facility and wait until the equipment is at the ambient (room)

temperature.
Before removing the guards and panelling, turn off the device. Set it aside and make sure that no power is present.
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Do not use piping to access on the equipment or to store something on theequipment.
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The replacement of a safety valve must be made by the same brand of the original one.
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If there is modification of type and /or brand, then the professional in charge of the replacement will do a calculation sheet
following EN 13136 and /or ask Profroid some elements.
Handle regularly the device valves in view to avoid theirs blocking on.
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If a personal in charge of maintenance closed a blocked valve, this personal will must avoid the possible increase of pressure in the

part of device which is isolated.
The periodic technical checks must be made following frequencies determined by standards, sound engineering practice, end user

and installer.
Report periodic checks and analyze the data. In case of abnormalities or inconsistencies, determine the cause and correct it.
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In case of hanged units (evaporator as an example), it is necessary to define an exclusion zone on the ground, to avoid the

presence of persona under the equipment.
It is important to ensure that the hinge mechanisms of moving parts are operational before all manipulations (drain pan, door, fans

mounted on hinges,...).
In general, when opening any moving parts it is necessary to accompany them or slow their opening speed to avoid casing

deformations.
Lockable fan switch aren't safety accessories.
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