Technical Specifications

Heat Rejection

108

6.5 Calculating Refrigerant Volume

Using Tables 41, 42 and 43 or 44, calculate the refrigerant charge of the individual sections of the

heat rejection system. Add the calculated charge amounts to determine the amount of R-407C

refrigerant required for one system.

Table 41 Indoor unit refrigerant charge—R-407C

Model 50/60 Hz Charge/Circuit, lb. (kg)

Liebert XDC160 17.5 (8.0)

Table 42 Outdoor air condenser charge—R-407C

Outdoor Ambient, °F (°C Model 50/60 Hz Receiver Part # Charge / Circuit, lb. (kg)

-30 to 100 (-34 to 38) DCSL415 185010G2

/ G4

200 (91)

-30 to 105 (-34 to 41) DCSL616 179713G1

/ G2

254 (115)

35 to 105 (2 to 41) DCSL616 181610G2

/ G4

164 (75)

1. 120V

2. 230V

Table 43 Air-cooled systems - liquid line charge - R-407C refrigerant per 100ft (30m) of Type ACR

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)

Table 44 Indoor water/glycol-cooled module – R-407C refrigerant charge

Model 60 Hz Charge / Circuit, lb. (kg)

Liebert XDC 160 30.0 (13.2) per circuit