Majestic MER42N Installation Manual page 32

Measuring Standards:
Vertical and horizontal measurements listed in the vent
diagrams and clearances for termination were made
using the following standards:
• Pipe measurements are shown using the effective length
of pipe. See Vent Components document, included in
manual bag assembly, for information on effective length
of pipe components.
• Horizontal terminations are measured to the outside
mounting surface (flange of termination
Figure 4.9.
• Vertical terminations are measured to top of last section
of pipe. See Figure 4.10.
• Horizontal pipe installed level with no rise.
MEASURE TO SHADED SURFACE
(OUTSIDE MOUNTING SURFACE)
Figure 4.9 Measure to Outside Mounting Surface
Figure 4.10 Measure to Top of Last Section of Pipe
Majestic • MER36N, MER36L, MER42N, MER42L Installation Manual • 2595-980 Rev. B • 5/23
32
Top Vent - Horizontal Termination
cap). See
Top Vent—Horizontal Termination—Two 45º Elbows
Installation requirements to replace the first 90º elbow
with two 45º elbows:
Figure 4.11
4 ft min.
(1.22 m)
20 ft max.
(6.10 m)