Venting Fireplace - Rear - Empire Comfort Systems MILLIVOLT DVCD FP3-4 Series Installation Instructions Manual

Direct-vent zero clearance gas fireplace heater

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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 inches (457 mm). This does not apply if the

45 degree elbows are installed on the vertical part of the vent

system. Reduce three feet for every 90° elbow.

Example: According to the chart the maximum horizontal vent

length is 20 feet and if two 45 degree elbows are required in the

horizontal vent it must be reduced to 17 feet.

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.

NOTICE: When rear venting unit, adjust air shutter according

to the table below.

Acceptable vertical and horizontal vent run.

Unacceptable vertical and horizontal vent run.

AIR SHUTTER OPENINGS

(DIMENSIONS IN INCHES)

Model

Top Venting

DVCD32

1/16

DVCD36

1/16

DVCD42

3/16

DVCD32

1/4

DVCD36

5/16

DVCD42

5/16

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