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Top Vent - Horizontal Termination - (continued)
Two Elbows
WARNING! Risk of Fire! Elbow heat shield required
when V
= 2 ft. or less. Clearances to combustibles
1
must be maintained. See Section 5.A.
V
Elbow only
6 in.
1 ft.
1-1/2 ft.
2 ft.
2-1/2 ft.
V
1
Figure 4.12
MER36MN
Minimum
H
+ H
Maximum
1
1
2
Not Allowed
152 mm
Not Allowed
305 mm
4 ft.
457 mm
11 ft.
610 mm
17 ft.
762 mm
20 ft.
+ H
+ H
= 40 ft. (12.2 m) Maximum
1
2
H
+ H
= 20 ft. (6.1 m) Maximum
1
2
V
= 1 ft. (305 mm) Minimum
1
H
2
Majestic • MER36MN, MER42MN Installation Manual • 2599-980 Rev. B • 5/23
V
Minimum
1
Elbow only
6 in.
1.2 m
1 ft.
3.4 m
2 ft.
5.2 m
3 ft.
6.1 m
4 ft.
6 ft.
10 ft.
V
+ H
1
1
H
+ H
1
V
1
INSTALLED
HORIZONTALLY
MER42MN
H
+ H
Maximum
1
2
Not Allowed
152 mm
Not Allowed
305 mm
2 ft.
610 mm
610 mm
4 ft.
1.2 m
914 mm
6 ft.
1.8 m
1.2 m
8 ft.
2.4 m
1.8 m
12 ft.
3.6 m
3.0 m
20 ft.
6.1 m
+ H
= 40 ft. (12.2 m) Maximum
2
= 20 ft. (6.0 m) Maximum
2
= 1 ft. (305 mm) Minimum
H
1
V
1
33
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