Venting Fireplace - Rear - Empire Comfort Systems DVD32FP33N-4 Installation Instructions Manual

Direct-vent zero clearance gas fireplace

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Table Of Contents

Table of Contents

To Use the Vent Graph

Determine the height of the center of the horizontal vent pipe.

Using this dimension on the Sidewall Vent Graph, locate the

point it intersects with the slanted graph line.

From the point of this intersection, draw a vertical line to the

bottom of the graph.

Select the indicated dimension, and position the unit in

accordance with same.

EXAMPLE A:

If the vertical dimension from the floor of the unit is 12 feet, 4 inches

the horizontal run to the outer wall flange must not exceed 12 feet,

3 inches.

EXAMPLE B:

If the vertical dimension from the floor of the unit is 6 feet, 9 inches,

the horizontal run to the outer wall flange must not exceed 6 feet,

6 inches.

SPECIAL NOTE: For each 45 degree elbow installed in the

horizontal run, the length of the horizontal run MUST be reduced

by 18" (457 mm). This does not apply if the 45-degree elbows

are installed on the vertical part of the vent system. Reduce 3'

for every 90° elbow.

Example: According to the chart the maximum horizontal vent length

is 20' and if two 45 degree elbows are required in the horizontal

vent it must be reduced to 17'.

The maximum number of 45 degree elbows permitted per side

wall installation is two. These elbows can be installed in either the

vertical or horizontal run.

Acceptable vertical and horizontal vent run.

Unacceptable vertical and horizontal vent run.

NOTICE: When rear venting unit, adjust air shutter from 1/16"

open up to between 1/8" and 3/16" for Natural Gas.

Adjust air shutter from 1/4" open to between 5/16" and to 3/8"

for Propane Gas.

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