Page 18
July 12, 2006
Heat & Glo · Mission Bay · 250-7512F
Figure 5.18
Step 6.
Complete the cathedral ceiling installation by following the
same procedures outlined in steps 7 through 9 for vertical
installations, pages 16-17.
Step 7.
Place the support clamp (provided with the support box)
inside the support box (at the bottom), and secure to the pipe
section. The clamp allows the support box to support the
weight of the pipe sections. Continue to add pipe sections
until you are above the roofline.
CATHEDRAL
CEILING
SUPPORT
BOX
TRIM COLLAR
SCREWS
Step 8.
Install the black trim collar around the outside of the cathedral
ceiling support box (
Figure 5.19
). The two pieces of the trim
collar slide over one another to allow for easy adjustment
around the support box. Using the six screws provided,
secure the four corners and the overlapping sections of the
trim collar to the ceiling. You may want to predrill the holes for
the overlapped sections for ease of installation.
Figure 5.19
3. Class A Metal Chimney
Figure 5.20
TERMINATION
CAP PART #SLK-991DA
EXISTING METAL
CHIMNEY SYSTEM
TOP ADAPTER
FLASHING
4 in. (102mm) FLEX PIPE
RETRO CONNECTOR
DIRECT VENT PIPE
Top Adapter
Sheet Metal Screws
Flex
Pipe
Figure 5.21
Step 1.
Remove existing chimney cap.
Step 2.
Measure the distance from the top of the chimney to the
bottom of the ceiling support box, add 3 in. (76mm) to this
measurement, and cut a section of 4 in. (101mm) flex pipe
to that length (the flex should be fully extended).
Step 3.
Connect the end of the flex pipe section to the underside
of the top adapter, using four sheet metal screws
(Figure
5.21)
.
CAUTION
Ensure that existing chimney is functionally sound and clean.
• Have inspection done by qualified chimney sweep or
professional installer BEFORE converting to direct vent
appliance.