APC ACRD101, ACRD100 manual Mechanical inspection checklist, Ensure that

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.

InRow RD 10 kW Air Cooled Operation and Maintenance 5