Monessen Hearth Flex Vent Pipes, Termination Clearances, CDVSC7 & CDV7 Series Gas Fireplace

Figure 9 -

Termination Clearances

Venting INSTALLATION INFORMATION CDVSC7 & CDV7 Series Gas Fireplace

Termination Clearances

Termination clearances for buildings with combustible and noncombustible exteriors.

Inside Corner

	G =
G	Combustible
	6" (152 mm)

V Noncombustible 2" (51 mm)

Outside Corner

	F =
	Combustible
	6"	(152 mm)
V	Noncombustible
	2"	(51 mm)
	F

Alcove Applications*

D

C C

V

E

O

Balcony -

with no side wall

M

V

M =

Combustible &

Noncombustible

12" (305 mm)

Balcony -

with perpendicular side wall

M

V

P

Combustible &

Noncombustible

M = 24" (610 mm)

P = 20” (508 mm)

E = Min. 6” (152 mm) for non-vinyl sidewalls Min. 12” (305 mm) for vinyl sidewalls

O = 8’ (2.4 m) Min.

No.
of Caps	DMin.	CMax.
1	3’ (914 mm)	2 x DActual
2	6’ (1.8 m)	1 x DActual
3	9’ (2.7 m)	2/3 x DActual
4	12’ (3.7 m)	1/2 x DActual
DMin. = # of Termination caps x 3
CMax. = (2 / # termination caps) x DActual			584-15

*NOTE: Termination in an alcove space (spaces open only on one side and with an overhang) is permitted with the dimensions specified for vinyl or non-vinyl siding and soffits. 1. There must be a 3’ (914 mm) minimum between termination caps. 2. All mechanical air intakes within 10’ (1 m) of a termination cap must be a minimum of 3’ (914 mm) below the termination cap. 3. All gravity air intakes within 3’ (914 mm) of a termination cap must be a minimum of 1’ (305 mm) below the termination cap.

General Information Assembling Vent Pipes

USA Installations

The venting system must conform to local codes and/or the current National Fuel Code ANSI Z223.1/NFPA 54.

Only venting components manufactured by MHSC may be used in Direct Vent systems.

Canadian Installations

The venting system must be installed in accordance with the current CSA-B149.1 installation code.

Flex Vent Pipes

Before joining the flex vent pipe to the unit, apply a bead of high temperature sealant* (provided) to the 4” pipe exiting the fireplace. Secure flex vent pipe in place with a hose clamp (provided).

*Be sure the flex pipe overlaps at least 1” (25 mm) onto the collars of the fireplace and termination. If the termi- nation has an internal bead, be sure to overlap and se- cure 1” (25 mm) past the bead.

*Be sure the vent is actually crushed before proceeding. Apply a tug to be sure the vent will not slip off the collars. Repeat process with 7” flex vent pipe. The same proce- dure must be performed on the vent side.

Apply High Temperature

Sealant

FP2290 Hose Clamp

Figure 10 -

Apply high temperature sealant to 4” and 7” pipes.

69D3011 15