Monessen Hearth HDV500NV/PV manual Vertical through-the-roof applica- tions

Figure 28 -

Snorkel Installation, Recessed Foundation

Foundation Recess

Watertight Seal Around Pipe

HDV Series Direct Vent Gas Fireplace

venting installation

If the foundation is recessed, use recess brackets (not supplied) for securing lower portion of the snorkel. Fasten brackets

to wall first, then secure to snorkel with self drilling #8 x 1/2 sheet metal screws. It will be necessary to extend vent pipes out as far as the protrud- ing wall face.

Figure 28

Snorkel

Wall Screws

Sheet Metal

Screws

FP1966

This Gas Fireplace has been approved for,

•Vertical installations up to 40' (12 m) in height. Up to a 10' (3 m) horizontal vent run can be installed within the vent system using a maximum of two 90° elbows. See Figure 30

•Up to two 45° elbows may be used within the horizontal run. For each 45° elbow used on the horizontal plane, the maximum horizontal length must be reduced by 18" (450 mm).

Example: Maximum horizontal length

No elbows	= 10’ (3 m)
1 x 45° elbows	= 8.5’ (2.6 m)
2 x 45° elbows	= 7’ (2.1 m)

•	A minimum of an 8' (2.5 m) vertical rise is required.
•	Two sets of 45°elbows offsets may be used within the
	vertical sections. From 0 to a maximum of 8' (2.5 m) of
	vent pipe can be used between elbows. Figure 31

WARNING	•	Do not back fill around snorkel.
	•	A clearance of at least 4" must be
		maintained between the snorkel and
		the soil.

vertical through-the-roof applica- tions

WARNING	A restrictor disc must be installed on any
	Cap cannot be used with this fireplace.
	vertical termination that is higher than
	12'.
	Simpson Duravent 58DVA-VC/1280 Vertical

Install restrictor disc as shown in Figure 30 for vertically vented applications.

Up to three (3) restrictor discs may be needed for 40' installation.

The two (2) restrictor discs suppled will work for most instal- lations. If a third disc is needed order Part No. 56D3027.

You may use a reducer to 4" x 6B\," in vertically vented applications.

Restrictor Disc

Stove Collar

• Determine the roof pitch and use the appropriate starter

kit for offset installation.

40'

Maximum

Height

8' 10' Maximum Minimum

Height

Support Straps Every 3'

				Support
40'			10' Maximum	Straps
Maximum				Every 5'
Height				Vertical
8'
Minimum
Height
		Support Straps Every 3'
	FP1183

Figure 29 -

FP2467

Figure 30 -

Support Straps for Horizontal Runs

Install Restrictor Disc into Stove Collar

22 56D3048