Liebert DCD User Manual page 31

Pull the flexible piping slightly to elongate it. This makes the piping long enough to connect the union
nuts. Only a slight elongation is necessary. Pulling too hard will overextend the pipe, making it hard to fit
and possibly causing leaks.
Figure 4.12 Aligning pipes
15. Insert the sealing ring in the door's lower piping (see Figure 4.13 below).
Figure 4.13 Inserting sealing ring
16. With the door fully open, use a torque wrench tighten the union nuts to 64 ft-lb (85Nm). If a
torque wrench is not available, use two wrenches to reduce the stress on the pipes (see Figure
4.14 on the next page).
• Open-end wrench 1-5/8" (41mm) or an adjustable wrench with maximum size of 2" (51mm)
• Open-end wrench 1-7/16" (36mm) or an adjustable wrench with maximum size of 2"
(51mm)
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