APC Condenser 2 Fan Installation Manual download pdf (Page 13)

5InRow RD 10 kW Air Cooled 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 and system charging. The inspection ensures that field piping is properly installed

to promote oil return to the compressor.

Warning: 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 that the blades are not distorted or bent.



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



Piping joints are tight.



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.



Vertical, horizontal, and total run lengths of the liquid, discharge, and suction lines are recorded.



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.



Refrigerant 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 Condenser 2 Fan Installation Manual Page 13