Empire Comfort Systems BF28BMN-4 Installation Instructions Manual page 14

DIRECT VENT AND COLINEAR VENT EXAMPLES
REAR SHROUD
SINGLE FLUE ADAPTER
In direct vent applications, a minimum distance between
the two pipes is 3 inches and the maximum distance is 24
inches. The flue exhaust and air inlet can be terminated with
either a PTrap or two 90° elbows as shown in Figures 9,12
and 13. The Vertical Termination Cap (Part number PVVTC)
can also be used.
3" - 24"
H
FLASHING
REQUIRED
Page 14
12" MINIMUM TO GRADE
RECOMMENDED 12" MINIMUM TO
MAXIMUM EXPECTED SNOW LEVEL
COLINEAR ADAPTER
Figure 8
AIR INTAKE
PTRAP, 2 90 EBLOWS
(SUPPLIED BY INSTALLER).
PTRAP TO FACE AWAY FROM ROOF.
H
REQUIRED HEIGHT IS 12"
MINIMUM. IT IS RECOMMENDED
TO BE 12" ABOVE THE
EXPECTED SNOW LEVEL.
Figure 9
Figure 10 - PVVTC Vertical Termination Cap
Vertical termination cap used with 1-1/2 inch
o
Cap also used with colinear transition plate.
Figure 11
PVC pipe installation.
PVC CEMENT
27297-5-0511