Montigo R320-ST Installation & Maintenance Manual page 15

Installing a Wall Mounted Horizontal Exterior Power Vent
This section applies to installations where the shortest possible vent
run is through an exterior wall. Refer to Appendix A - Power Vent
locations, to ensure the planned Power vent location is acceptable.
Once the vent location has been established, please refer to the
appropriate section below for installation details.
Once the vent location has been established, please refer to the
appropriate section below for installation details.
Venting Layout
Selection of components and details of venting lay out should adhere
to the following guidelines:
■ Ensure there is a minimum run of 2' of straight pipe before
the power vent.
■ Ensure the maximum vent run does not exceed 100'.
■ Ensure the number of 90° elbows does not exceed 6.
■ Ensure the number of 45° elbows does not exceed 12.
V
Venting Installation
V+H(MaximumLength)
100 Feet
Figure 4 Sec.4 Typical Venting Installations.
Min. 7 feet of pipe between replace
and power vent
Figure 5 Sec.4 PVHIN58-300 Power Vent.
Note: PVHIN58-300 cannot be installed closer than 7" feet to fireplace.
XG0774 - 150121
Installation
H
Max.#
Elbows
6
PVHIN58-300
R320-ST & R420-ST Power Vent Indoor Gas Fireplace
Multi-Elbow Installations
Multi-elbow installations are possible up to a maximum of six
at 90° elbows.
Elbow 4
V2
Elbow 2
H1
V1
Elbow 1
MultiElbow-VentingInstallation
V1 + H1 + V2 + H2 + V3 = H3
(MaximumLength)
100 Feet
Figure 6 Sec.4 Multi-elbow Venting Installations.
Downward Vertical Venting
Note: The downward vent run must not exceed 6' of vent run.
H1
V
MultiElbow-VentingInstallation
V1 + H1 + D + H2
(MaximumLength)
40 Feet
Figure 7 Sec.4 Downward Venting Installations.
Elbow 6
H3
V3
Elbow 5
H2
Elbow 3
Max.#
Elbows
6
D
H2
Max.#
Elbows
6
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