NuTone VX550 Installation Guide download pdf (Page 30)

Attach the tubing to the joists or ceiling with either

perforated metal or support strapping (support strapping is

available from NuTone).

Make all branch line connections in the same way you would

an attic installation. Make sure that all branch lines enter the

trunk line at an angle that is at least levelled with the trunk

line. Make sure all the fittings are oriented so the air flows

toward the power unit. Complete the trunk line to the power

unit location.

Using Flexible Tubing

The supplied 36˝ length of flexible tubing may be used to

circumvent an obstacle or to make a difficult turn. In the

example illustrated here, the flexible tubing is used in order

to run a branch line under a support beam. Attach this

tubing to the PVC tubing, cementing only the outside of the

PVC tubing as you would for a hard-fitting connection.

Whenever you use the flexible tubing, you must secure both

ends of it with support strapping.

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NuTone VX550 Installation Guide Page 30