Vermont Casting H33BDVRRN General Information on Assembling DV Components, Crimped End Pipes

Pyromaster© H33BDVRRN/P

Termination Clearances

Termination clearances for buildings with combustible and noncombustible exteriors.

Inside Corner Outside Corner Recessed Location

			B =
	A =		Combustible
A	Combustible		6"(152mm)
	6"(152mm)	V	Noncombustible
			2"(50mm)
	Noncombustible
V	2"(50mm)	B
Balcony -		Balcony -
with no side wall		with perpendicular side wall
	G	H
	V		V
		Combustible &	J
G =
		Noncombustible
Combustible&
Noncombustible		H = 24"(610mm)
12"(305mm)		J = 20"(508mm)

D

CC

E

V

C = Maximum depth of 48" (1219mm) for recessed location.

D = Minimum width for back wall of a recessed location. Combustible 38"(965mm) Noncombustible 24"(610mm)

E = Clearance from corner in recessed location. Combustible 6"(152mm) Noncombustible 2"(50mm)

584-15

Fig. 8 Termination clearances.

General Information on Assembling DV Components

Crimped End Pipes

Before joining elbows and pipes apply a bead of high temperature sealant to the crimped end of the elbow or pipe. Join the pipes using a 2” (50mm) overlap and secure the joints with three sheet metal screws. (Fig. 9) Wipe off excess sealant.

Canadian Installations:

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

USA Installations:

The venting system must conform with local codes and/or the current National Fuel Gas code ANSI Z223.1.

Only venting components manufactured by CFM Corporation can be used in Direct Vent systems.

	Sealant	1" (25mm)
		Screw Holes
		FP1175
Fig. 9	Apply a bead of high temperature sealant.

It is possible to use CFM Corporation 4” & 7” direct vent crimped pipe and elbows with CFM Corporation 4” & 7” twist-lock pipe. NOTE: The crimped pipe must be used first.

10004798 9