Monessen Hearth HBDV400N/PV7, HBDV300N/PV7 manual Twist Lock Pipes, How to Use the Vent Graph

HBDV7 Series Direct Vent Gas Fireplace Venting INFORMATION

Twist Lock Pipes

When using twist lock pipe it is not necessary to use sealant on the joints. The only areas of the venting system that need to be sealed with high temperature silicone sealant are the sliding joints of any telescopic vent section used in the system.

To join twist lock pipes together, simply align the beads of the male end with the grooves of the fe- male end, twisting the pipe until the flange on the female end contacts external flange on the male end. It is recommended that you secure the joints with three (3) sheet metal screws, however, this is not mandatory with twist lock pipe. Figure 14

To make it easier to assembly the joints, we suggest putting a lubricant (Vaseline or similar) on the male end of the twist lock pipe prior to assembly.

Male End Female End

TWL100

Screw Holes

Figure 14 -

Twist-lock Pipe Joints

How to Use the Vent Graph

The Vent Graph should be read in conjunction with the following vent installation instructions to determine the re- lationship between the vertical and horizontal dimensions of the vent system.

1.Determine the height of the center of the horizontal vent pipe exiting through the outer wall. Using this di- mension on the Sidewall Vent Graph, Figure 15, locate the point intersecting with the slanted graph line.

2.From the point of this intersection, draw a vertical line to the bottom of the graph.

3.Select the indicated dimension, and position the fire- place in accordance with same.

EXAMPLE A:

If the vertical dimension from the floor of the unit is 11’ (3.4

m)the horizontal run to the face of the outer wall must not exceed 14’ (4.3 m).

EXAMPLE B:

If the vertical dimension from the floor of the unit is 7’ (2.1 m), the horizontal run to the face of the outer wall must not exceed 6’ (1.8 m).

Refer to Page 21 for requirements for snorkels.

			40
			38
of			36
Center			34
			32
the			30
to			28
Unit	Pipe
			26
Dimension from the Floor of	the Horizontal Vent		24
			22
			20
			18
			16
			14			eg: A
			12
			10
Vertical
		X	8
			6
			4
			2
			2	4	6	8 10 1214 16 1820

Horizontal Dimension From the Outside of Termination to

the Back of the Fireplace

X = 29B\,” (753 mm) for 300 Models

X = 33Z\,” (841 mm) for 400 Models

Figure 15 -

Side Wall Venting Graph

14 54D8000