Installing A Wall Mounted Vertical Exterior Power Vent; Venting Layout; Multi-Elbow Installations; Downward Vertical Venting - Montigo R320-ST Installation & Maintenance Manual

R320-ST & 420 ST Power Vent Indoor Gas Fireplace

Installing a Wall Mounted Vertical Exterior Power Vent

(EDVWSPV58)
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 (Maximum Length)
100 Feet
Figure 6. Typical Venting Installations.
XW2024
Page 14
Installation
H
Max. #
Elbows
6
WARNING
All venting material must be sealed with high heat
silicone sealant RV230. All venting material to be
Montigo flex pipe, with as few joints as possible.
All joints use MVA vent splice, sealed thoroughly
with silicone. Montigo will not be held responsible
for any water damage that may occur from not
installing the equipment as specified by this
document.

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
Multi Elbow - Venting Installation
V1 + H1 + V2 + H2 + V3 = H3
(Maximum Length)
100 Feet
Figure 6a. Multi-elbow Venting Installations.

Downward Vertical Venting

Note: The downward vent run must not exceed 6' of vent run.
H1
V
Multi Elbow - Venting Installation
V1 + H1 + D + H2
(Maximum Length)
40 Feet
Figure 6b. Downward Venting Installations.
Elbow 6
H3
V3
Elbow 5
H2
Elbow 3
Max. #
Elbows
6
D
H2
Max. #
Elbows
6
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