Section 3-3-1: Venting Layout - Montigo H38DF PRC Installation & Maintenance Manual

Installing Heat Guards over Terminations
in installations where the termination is located within 7' feet
above grade, or above a pedestrian walkway, and may be
Required by code in Public areas.
Figure 11. Installing a PTO termination heat guard.
1. Ensure that the two long mounting brackets are facing the
bottom of the termination. (See inset). This will provide more
heat protection at the top of the termination, where temperatures
are highest.
2. Attach to the faceplate of the termination using four sheet
metal screws.
Section 3-3-1:
VENTING LAYOUT
Selection of components and details of venting layout should
adhere to the following guidelines:
Vent terminations must not be recessed in walls or siding.
„
For Heat Shield requirements see Section 3-3-3 on
„
page 18.
Once the proposed venting layout has been determined
„
refer to either Figure 12, 12a, 14, or 14a to ensure the
layout is acceptable.
Notes Wall Mounted Terminations: TOP VENT
All dimension lengths for vertical or horizontal runs are
„
measured from center of the vent pipe.
Venting runs must fall within the limits set by the venting
„
graphs, see Figure 12 or 12a.
Acceptable vent run
within non-shaded area.
B
46"
42"
Unacceptable vent run
within shaded area.
Figure 12. H38PR* or HL38PR* Top Vent Venting Graph for wall mounted
terminations.
XG0211 - 151126
Installation
is recommended
MTKOG (5"/8")
A
C
If your installation does not fall with-
in the venting graph parameters,
please contact a local Montigo
dealer for Power Venting options.
H*38DF PRC Panorama Indoor Gas Fireplace
The Venting Graph
Measure the vertical height from the fireplace hearth to the centre
of the termination and the horizontal run from the fireplace flue
collar to the wall flange of the termination. Plot on the Venting
Graph Figure 12 or 12a with an 'X'.
If the 'X' falls on or above the top boundary of the shaded area, the
installation is acceptable.
Example A: (Acceptable Installation)
If the vertical dimension from the hearth is 126" and the
horizontal run to the wall flange of the vent termination is 144",
this would be an acceptable installation.
Example B: (Unacceptable Installation)
If the vertical dimension from the hearth is 48" and the horizontal
run to the wall flange of the vent termination is 72", this would
NOT be an acceptable installation.
Example C: (Unacceptable Installation)
If the vertical dimension from the floor of the fireplace is 60"
and the horizontal run to the wall flange of the vent termination
is 144", this would NOT be an acceptable installation.
Flex section
Hearth
Figure 12a. H38PR* or HL38PR* Top Vented, wall mounted installation with
one 90° bend. The vent run must comply with Venting Graph for Top vent,
wall mounted terminations, Figure 12.
42" Max.
Heat
Shield
Termination
46"
Min.
Exterior
Wall
Page 13