Instructions / Assembly

Joining Straight Lengths of Tubing

Both branch lines and the trunk lines may require lengths

of tubing longer than those 8´ sections supplied. Use

stop couplings to join two straight lengths of tubing. Insert

one end of the tubing into the stop coupling; join the

second length of tubing into the other end of the stop

coupling. Stop couplings are also used to join long

vertical branches which run from one level to another

level of a house.

Connecting a Branch Line

A branch line connects the inlet line to the trunk line.

Follow the methods previously described for aligning,

marking and cutting the inlet tubing. Attach a 90° elbow

and run tubing from the inlet line to the trunk line.

To align and measure the branch line, attach a 90° tee

fitting to the trunk line. Make sure the tee connects with the

air flow going toward the power unit. Align, measure, and

mark the branch line for inserting it into the tee fitting.

Then, cut the branch line to length and insert it into the tee.

Check to make sure the cut is straight and even. Connect

the next section of tubing to the out-take side of the tee

fitting. Continue the trunk line until you come to another

branch line junction point.

Branch Line

Make sure

air flows

toward

Power Unit

To Power Unit