4)Assembly of
a) General Notes:
•
•Support horizontal piping sections at intervals of 48” or less.
•Vertical venting systems must be supported by at least one
b)Start assembly of the vent system at the boiler. Remove the hose clamp shipped on the FCM vent collar. Bend the three hose clamp tabs on this collar outward slightly.
c)Clean the exterior of the male end of the first piece of pipe and the inside of the vent collar on the boiler. Remove dirt, grease, and moisture from the surfaces to be sealed. Dry surfaces or allow to dry thoroughly.
d)On the male end of the pipe, apply a ¼” wide bead of high temperature silicone approximately ½ inch from the male end of the pipe. Apply ¼” beads of silicone along both sides of the longitudinal seam (Fig. 7.18).
e)Insert the male end of the pipe into the boiler vent collar until it bottoms out.
f)Apply an additional bead of silicone over the outside of the joint and smooth out.
g)Replace and tighten the clamp on the vent collar.
h)The female end of each
i)Align the second piece of pipe with the first and push them together as far as they will go, but not less than
j)Tighten gear clamp to a minimum torque of 40
k)Repeat Steps (h) – (j) for the remaining
l)In horizontal vent systems, a locking band or gear clamp must be used at either side of the wall penetration to prevent shifting of the vent system in and out of the wall. This applies to both combustible and
n) Allow the silicone to cure per the silicone manufacturer’s instructions before operating the boiler.
Figure 7.18: Z-Vent III Connection to Vent Collar
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