Emerson Liebert Xtreme Density Specifications download pdf (Page 27)

Designing a Liebert XD Solution

3.14 Liebert XDC DX R-407c Circuit Volume—Air Cooled Units

Weigh in the calculated charge based on Tables 7, 8 and 9.

3.15 Chilled Water Piping

The XDP is offered only with a two-way chilled water control valve. Some applications may require

the use of a pressure activated bypass valve, to prevent dead-heading of the chilled water pump. This

bypass valve must be specified by the engineer responsible for design of the chilled water field piping

system.

Chilled water connections to the XDP are near the bottom of the unit. Refer to the XDP user manual

(SL-16641) for further information. Piping is routed downward from the unit to chilled water piping

under the raised floor. Connections are made using standard practices for copper chilled water piping.

Victaulic

connections may be used to simplify installation in existing facilities. Refer to Table 15 for

additional information.

3.16 Electrical

Make all wiring and electrical connections in accordance with local and national codes. Refer to equip-

ment nameplate regarding wire size and circuit protection requirements. Refer to electrical schematic

when making connections.

Table 7 Indoor unit refrigerant charge—R-407C

Model 60 Hz Charge/Circuit lb. (kg)

XDC160 4.5 (2.0)

Table 8 Outdoor condenser charge—R-407C

Model Charge / Circuit, lb (kg)

CDL830 182 (82.6)

CSL616 254 (115.2)

CSL415 182 (82.6)

Table 9 Liquid line charge - R-407C refrigerant per 100 ft (30 m) of Type “L” copper tube

O.D.,

inches

Liquid Line,

lb (kg)

Hot Gas Line,

lb (kg)

3/8 3.7 (1.7) -

1/2 6.9 (3.1) -

5/8 11.0 (5.0 2.2 (1.0)

3/4 15.7 (7.1) 3.1 (1.4)

7/8 23.0 (10.4) 4.5 (2.0)

1-1/8 39.3 (17.8) 7.8 (3.5)

1-3/8 59.8 (27.1 11.8 (5.4)

1-5/8 - 16.7 (7.6)

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Emerson Liebert Xtreme Density Specifications Page 27