APC ACRD500 Installationshandbuch PDF herunterladen (Seite 13)

5InRow RD Operation and Maintenance

Mechanical Inspection Checklist

The mechanical inspection verifies that all mechanical components and connections are secure and tight

and ready for start-up. The inspection ensures that field piping is properly installed to promote oil return

to the compressor.

Caution: The equipment is shipped from the factory with a nitrogen holding charge. Remove

the nitrogen holding charge using the Schrader valves located on the internal refrigerant

piping.

Caution: Improperly installed piping may result in improper operation and possible damage

to the cooling unit or surrounding equipment.

Ensure that the:



Fans are turning freely and the blades are not distorted or bent.



Condensate drain line is at least the size of the drain connection.



Piping has been leak tested and held a vacuum prior to intorduction to refrigerant into the system..



Mechanical connections are tight, including compressor and receiver rotolock connections.



Refrigerant piping size is correct according to the line size table in the installation manual.



The vertical, horizontal, and total run lengths of the liquid, dischanrge, and suction lines are recorded.



The number of 45- and 90-degree bends in the refrigerant piping are recorded.



Field-installed traps and piping are in accordance with the installation manual and follow proper piping

practices.



Piping is adequately supported and isolated when necessary.



Field-installed service valves are open.



Pressure relief valve is installed in accordance with the installation manual as well as local and national

codes and regulations.



Piping in the building and on the roof is properly insulated.



Covers and guards are in place.

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APC ACRD500 Installationshandbuch Seite 13