Montigo H38DF ST Manual do Utilizador descarregar pdf (Página 11)

H*38DF ST Indoor Gas Fireplace

Page 11

XG0207 - 150204.1

Installation

Section 3-2: Installing a Roof Mounted Direct Vent Termination

(PVTK-1)

This section applies to installations where the direct vent termination

will be roof mounted.

Section 3-2-1: Venting Layout

Selection of components and details of venting lay out should

adhere to the following guidelines:

 The maximum termination point is 32’ above the replace (NOTE:

if the maximum termination height is used, the ame pattern

may be affected).

 The Vertical termination must be a minimum 2’ higher than where

the termination exits the roong materials, (asphalt shingles,

cedar shakes, etc). This distance should be measured from the

high side of the roof slope where the ue ashing intersects the

roong materials. (see Figures 10 to 10c).

 Termination location must be a minimum 6’ from a mechanical

air inlet.

 Termination location must be a minimum 18” from a parapet wall

 For a more detailed diagram of allowed termination locations,

see Appendix A.

 A maximum of two offsets (each offset is made up of 2-90°

bends) may be made for vertical vent runs.

 Firestops must be installed as required by National & local codes.

 Ensure all horizontal runs are supported with a minimum of 3

supports per 10’ of venting.

 Install all roof ashing and storm collars as shown.

Figure 10. Top vent, Roof mounted termination with no offset in vent run.

Figure 10a. Top vent, Roof mounted with 1 offset (1 offset= two 90° bends).

Figure 10b. Top vent, Roof mounted with 2 offsets (1 offset= two 90° bends).

Roof mounted Terminations

The following details are some possible congurations for Roof

mounted terminations.

PVTK1 Termination

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Montigo H38DF ST Manual do Utilizador Página 11