Section 3-2: Installing A Roof Mounted Vent System - Montigo RP620 Series Installation & Maintenance Manual

Section 3-2: Installing a Roof Mounted Vent System

This section applies to installations where the most efficient vent run is
through the roof. Refer to Appendix A - Power Vent locations, to ensure
the planned Power vent location is acceptable. Refer to the table below
for vent run requirements
Vent Configuration
Straight Vertical Top or
Rear Vent
Multi-Elbow Top or
Figure 6.b
Rear Vent
Multi-Elbow with 6'
downward vent run Figure 6.c
Top or Rear Vent
† One 90° elbow is equal to two 45° elbows.
** For every additional 1 foot downward vent run subtract 10 feet from
the maximum vent run.
Figure 6. Straight Vertical, Top or Rear Vent, Roof mounted power vent.
XG0777 - 180525
Maximum
Refer to Vent Run Maximum
Figure (Horizontal Elbows†
+ Vertical)
Figure 6
100 Feet
Six 90° or
equivalent
70 Feet**
†
Figure 6.b Multi-Elbow, Top or Rear Vent, Roof mounted power vent.
Figure 6.c Multi-Elbow with downward vent run, Top or Rear Vent, Roof mounted power vent.
Installation
D**
D**
13