Technical data

InRow RD Technical Data Manual30

Piping and Mechanical Connections

Refrigeration Piping Diagram (ACRD100 and ACRD500 series)

Note: Shutoff valves shown nearest to the condensers are not supplied by APC.

ACRD500 series: The shutoff valves nearest to the cooling unit are supplied by APC.

ACRD100 series: The shutoff valves are not supplied and must be ordered.

Note: Route piping through the top or bottom of the InRow RD.

Note: All lines are Type L ACR copper tubing.

Note: Trap the vertical discharge line every 6 m (20 ft) to ensure proper oil return.

Note: Pipe size should change after the P-trap based on the recommended piping charts

provided with the installation manual. See the piping diagram created for your site.

Note: The maximum piping run is 61 m (200 ft) equivalent length. Size the piping pursuant

to accepted refrigeration practice.

Note: ACRD100 series only: any equivalent length greater than 46 m (150 ft) will result in a

5% decrease in capacity.

Warning: Do not install the air-cooled condenser below the InRow RD. The condenser

must be positioned above or at the same level as the InRow RD to ensure proper

function.



Pitch in direction of refrigerant flow; 4 mm per m

(1/2 in per 10 ft)

P-trap

Shutoff valves S-trap

Head pressure control valve Inverted P-trap

Check valve Pressure relief valve

na2543a

Receiver Receiver

Bottom piping

Top piping

Condenser Condenser