Empire Comfort Systems DVCC32BP30N-3 Installation Instructions Manual page 31

VENTING FIREPLACE - TOP (CONT'D)
Example of venting system using one 90-degree elbow
Eight feet is minimum vertical vent run with 20 feet of maximum
horizontal vent run. Vertical dimensions are based on center-line
to center-line of pipe. Horizontal dimensions are based on center
line of pipe to end of termination.
FIRESTOP AT
CEILING LEVEL
SEE GRAPH FOR PERMISSIBLE "H" AND "V" DIMENSIONS
Examples of venting systems using two 90-degree elbows.
V is the minimum vertical dimension and total of H1 + H2. V is
also the maximum horizontal dimension. The maximum vertical
and horizontal distances for the two 90-degree elbows as shown
in (Figure 55) is 20 feet (6.1 meters).
FIRESTOP AT
CEILING LEVEL
SEE GRAPH FOR PERMISSIBLE "H" AND "V" DIMENSIONS
NOTE: H1 AND H2 MUST BE ADDED TOGETHER TO USE CHART
37606-4-0718
Figure 54
Figure 55
HARD ELBOW DIMENSIONS (in inches)
FIREPLACE
SERIES
A
DVCC32 50-13/16
DVCC36 50-13/16
DVCC42 52-13/16
FLEX PIPE 90 DEGREE BEND (in inches)
FIREPLACE
SERIES
A
DVCC32 51-11/16
DVCC36 51-11/16
DVCC42 53-11/16
Minimum hole location dimensions for through-the-wall horizontal
installations with 90-degree elbow and 12 inch rise off top of
fireplace.
(See Figure 49) on Page 29 for permissible horizontal and vertical
dimensions.
D
C
B
V
H
C
B
A
CENTER OF ELBOW
STRAIGHT OUT
(MINIMUM)
B C
4-5/16 6-5/16
4 6
4 6
B C
4-1/2 6-1/2
4-1/2 6-1/2
4-1/2 6-1/2
Figure 56
D
9-1/8
9-1/8
9-1/8
D
9-1/8
9-1/8
9-1/8
Page 31