APC ACRC500 Installation Manual download pdf (Page 12)

InRow RC Operation and Maintenance4

Mechanical inspection

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

Caution: Failure to properly install piping may result in improper cooling unit operation or

possible damage to the cooling unit or surrounding equipment.

User Interface Inspection Checklist

The user interface inspection verifies that the sensors and internal communication links are installed

properly. Check that the outdoor heat exchanger is connected to the cooling unit and to the other cooling

units in the room if you are using cooling group controls.

Ensure that the:

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

Mechanical connections are tight.

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

Pipe fittings are tight.

Air is bled from the water system. If air remains in the system, bleed it out now.

Supply chilled water temperature is recorded.

Chilled water flow is correct based on the performance requirements of the cooling unit.

Field-installed traps and piping are in accordance with the installation manual. Strainers are in place in the

chilled water supply loop. Proper piping practices have been followed.

Piping is adequately supported and isolated when necessary.

Field-installed service valves are open.

Water outlet temperature sensor is positioned correctly. For top-connected cooling units, the wire with only

a green wire tie is postioned in connector J23. For bottom-connected cooling units, the wire with both

green and white wire ties is postioned in connector J23.

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

Covers and guards are in place.

Ensure that:

An A-Link bus is connected to each cooling unit and a terminator is plugged into all unused A-Link

connectors.

The input contacts and output relays are connected correctly.

The building management system is connected correctly and a terminator is wired into the final cooling

unit.

The temperature sensors located on the front of the equipment are connected correctly.

The rack temperature sensors are installed correctly.

The network port is connected correctly and an IP address has been assigned to the cooling unit.

The optional rope water detection device is installed properly.

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APC ACRC500 Installation Manual Page 12