Lennox Hearth LSBV-4228MN Framing Specifications, Assembly Steps, Pre-Installationnotes

FRAMING SPECIFICATIONS
			Back Wall of Chase/Enclosure
			Including Finishing Materials		FOAK-4
				if any	Combustion
					Air Kit
				D
				K	F
					G
				C
		Header		A
				E	Rough
					Framing Face
					(Unfinished Shown)
				Corner Installation
	B		Figure 7
				Framing Dimensions
	A			Fireplace Opening Width
Fireplace Framing
Figure 4				LSBV-3628	LSBV-4228
				42-1/4"	48-1/4"
			A
				(1073 mm)	(1226 mm)
Back Wall of Chase/Enclosure		FOAK	B	52-1/2"	52-1/2"
				(1344 mm)	(1344 mm)
Including Finising Materials		Combustion
if any		Air Kit	C	23-9/16"	29-9/16"
	C			(599 mm)	(751 mm)
			D	11-1/4"	14-1/4"
				(286 mm)	(362 mm)
G
				63-1/2"	69-1/2"
			E
				(1613 mm)	(1765 mm)
H	A	H	F	31-3/4"	34-3/4"
				(807 mm)	(883 mm)
Rough
Framing Face	Inside Chase			20-1/2"	20-1/2"
(Unfinished Shown)			G
				(521 mm)	(521 mm)
Figure 5
			H	4"	4"
				(102 mm)	(102 mm)
			J	7-1/2"	7-1/2"
				(190 mm)	(190 mm)
Back Wall of Chase/Enclosure
				44-3/16"	49-1/8"
Including Finishing Materials		Optional Locations	K
if any				(1122 mm)	(1248 mm)
	C
		FOAK
		Combustion
		Air Kit	Note: All framing dimensions calcu-
G		J	lated for 1/2" dry wall at the appliance
	FATO Adapter		face. If sheathing the chase or finish-
	(Optional)		ing with other thickness materials, cal-
	A
			culations will need to be made.
		Rough Framing Face
		(Unfinished Shown)
	Outside Chase
Figure 6

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

ASSEMBLY STEPS

The typical sequence of installation follows, however, each installation is unique resulting in variations to those described.

1.Construct the appliance framing.

2.Route gas supply line to appliance location.

3.Position the appliance.

4.Install the vent system and exterior termina- tion.

5.Field wire and install operating control switch.

6.Make connection to gas supply.

7.Install (optional) outside Air Kit.

8.Install the logs and rockwool.

9.Checkout appliance operation.

10.Adjust burner to ensure proper flame ap- pearance.

PRE-INSTALLATION NOTES

The fireplace may be installed directly on a combustible floor or raised on a platform of an appropriate height. Do not place fireplace on carpeting, vinyl or other soft floor coverings. It may, however, be placed on flat wood, ply- wood, particle board or other hard surfaces. Be sure fireplace rests on a solid continuous floor or platform with appropriate framing for sup- port and so that no cold air can enter the room from under the fireplace.

The fireplace may be positioned and then the framing built around it, or the framing may be constructed and the fireplace positioned into the opening.

Usually, no special floor support is needed for the fireplace, however, to be certain:

1.Estimate the total weight of the fireplace system and surround materials such as brick, stone, etc., to be installed.

2.Measure the square footage of the floor space to be occupied by the system, surrounds and hearth extensions.

3.Note the floor construction, i.e. 2 x 6’s, 2 x 8’s or 2 x 10’s, single or double joists, type and thickness of floor boards.

5