Empire Comfort Systems BF28(B,C,G)M(N,P)-5 Installation Instructions Manual page 19

DIRECT VENT COLINEAR VENT EXAMPLES
In direct vent applications, the 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 13, 14, 15, 19 and 20. The Verti-
cal Termination Cap shown on page 13 (Part number PVVTC) can
also be used.
30259-6-0314
Figure 17
In both vertical and horizontal colinear direct vent applications,
a colinear transition plate model PVCT can be used to minimize
clearances between intake and exhaust pipes.
For exhaust and intake air, cap pipes with any of the following:
Vertical termination cap (model #PVVTC), PTrap, or two 90º el-
bows. When transition plate (model PVCT) is used, two termina-
tion caps (model PVVTC) may NOT be used.
Note: If transition plate (model PVCT) is used, the measurement
for center to center of the pipes will be 2.5". If the transition plate
(model PVCT) is not used, the measurement for center to center
of the pipes can be 3" to 24" maximum.
Figure 18
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