Venting And Chimneys; Assemble Vent Sections - Heat & Glo MEZZO-1000-AU Installation Manual

7
Venting and
A. Assemble Vent Sections
Attach Vent to the Firebox Assembly
The end of the pipe sections with the lanced
Note:
tabs will face toward the appliance.
Attach the first pipe section to the starting collar:
 Lanced pipe end of the starting collar.
 Inner pipe over inner collar.
 Push the pipe section until all lanced tabs snap in place.
 Lightly tug on pipe to confirm it has locked.
Required Commercial, Multi-family (Multi-level exceeding
two stories), or High-Rise Applications
All outer pipe joints must be sealed with 100% silicone
° °
(300 F (149 C) minimum continuous exposure rating),
including the slip section that connects directly to the
horizontal termination cap.
 Apply a bead of silicone sealant (300
mum continuous exposure rating) inside the female
outer pipe joint prior to joining sections. See Figure 7.1.
 Only outer pipes need to be sealed. All unit collar,
pipe, slip section, elbow and cap outer flues shall
be sealed in this manner, unless otherwise stated.
WARNING! Risk of Fire or Explosion! DO NOT break
silicone seals on slip sections. Use care when removing
termination cap from slip pipe. If slip section seals are
broken during removal of the termination cap, vent could
leak.
Assemble Pipe Sections
Per Figure 7.2:
 Start the inner pipe on the lanced end of section A
into the flared end of section B.
 Start the outer pipe of section A over the outer pipe
of section B.
 Once both vents sections are started, push firmly
until all lanced tabs lock into place.
 Lightly tug on the pipe to confirm the tabs have locked.
It is acceptable to use screws no longer than 1/2 in. (13
mm) to hold outer pipe sections together. If predrilling
holes, penetrate inner pipe.
DO NOT
° °
For 90 and 45 elbows that are changing the vent direction
from horizontal to vertical, one screw minimum should be
put in the outer flue at the horizontal elbow joint to prevent
the elbow from rotating. Use screws no longer than 1/2 in.
(13 mm). If predrilling screw holes,
inner pipe.
Heat & Glo • MEZZO-1000-AU, MEZZO-1300-AU, MEZZO-1300ST-AU, MEZZO-1600-AU Installation Manual • 2304-970 Rev. D • 3/15
Chimneys
° °
F (149 C) mini
penetrate
DO NOT
Figure 7.1 High Temperature Silicone Sealant
A
-
B
Figure 7.2
Note:
Make sure that the seams are not aligned to
prevent unintentional disconnection.
Figure 7.4 Seams
Lances
Figure 7.3
CORRECT
INCORRECT
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