User manual

Equipment Inspection and Handling

43 Liebert

™

5.3 Semi-Hermetic Compressor Spring Isolation System

Shipping blocks under all semi-hermetic compressors must be removed and the springs must be

adjusted before startup.

1. Loosen nuts at each of the four compressor feet and remove the two shipping blocks.

2. Beginning with one compressor foot, retighten nut until the washer under the nut can no longer

be rotated by finger.

3. Loosen the nut half a turn. The washer will be slightly loose.

4. Repeat for remaining feet and recheck all when done

5.4 Placing the Unit on a Floor Stand

Liebert Floor Stand—Ensure that the optional turning vane is installed in the floor stand (if

included) prior to placing the unit. Refer to the floor stand installation sheet, 182278P1, located inside

the floor stand package. Lower the unit onto the floor stand. Refer to Detail A in Figure 38. Be sure

to align the welded tabs on top of the floor stand with the inside of the unit frame base.

Figure 38 Setting the unit on a floor stand

NOTE

The floor stand for Liebert DS units equipped with EC fans is not symmetrical. Its orientation

to the Liebert DS unit is critical for lowering the EC fans. Unless the floor stand is installed in

the correct position, shown in Figures 24 and 26, the fans will not lower into the floor stand.

DETAIL A

Welded Tab

Liebert Floor Stand

(front discharge shown)