Liebert DS User Manual

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

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 36. Be sure 

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

Upflow rear return configurations use a filter box that attaches to the back of the Liebert DS. Refer to 

rear return installation sheet, 187230P1, located inside rear-return filter box package.

Welded Tab