Lennox Hearth MP-36OD 11

Note: Install the hearth extension only as illustrated (see Figures 21 & 22).

The safety strips should extend from front of the ﬁreplace at least 1 1/2" and should extend to be at least ﬂush with the sides. In the event a wooden support is used to elevate the ﬁreplace above the ﬂoor, a “Z” type safety strip should be fabricated and used to protect the front surface of the wood support as well as the ﬂoor beneath the hearth extension (Figures 23 & 24). The safety strips should be tacked down to prevent possible movement.

Note: The “Z” type safety strip is not sup- plied.

Note: Safety strips are not required when ﬁre- place rests on a noncombustible surface.

1 ¹⁄₂"

Metal Safety Strips

Figure 23

Blocking

Metal Safety Strips

Figure 24

Step 3. Refer to ﬁreplace drawings and speci- ﬁcations (see Figures 18, 19 & 20) for framing dimensions and details. Frame appliance enclosure as illustrated in Figure 18.

Note: The framed depth, 20 5/8" (524 mm) from a framed wall, must always be measured from a ﬁnished surface. If a wall covering such as drywall is to be attached to the rear wall, then the 20 5/8" (524 mm) must be measured from the drywall surface. It is important that this dimension be exact.

If the appliance is to be elevated above ﬂoor level, a solid continuous platform must be constructed.

The header may rest on the top metal spacers, but must not be notched to ﬁt around them.

Consult all local codes.

WARNING

Under no circumstances can the ﬁreplace top spacers (see Figure

18)be removed or modiﬁed, nor may you notch the header to ﬁt around or be installed lower than the spacers. The header may be in direct contact with the top spacers but may not be supported by them.

AVERTISSEMENT

Sous aucune circonstance les espaceurs du dessus du foyer (voir le schéma 13) ne peuvent être retirées ou modifiées, vous ne pouvez pas entaillez le colombage pour ajuster autour ou être installé plus bas que les espaceurs. Le colombage peut être en contact direct avec les espaceurs du dessus mais ne peut être soutenu par eux.

Step 4. The ﬁreplace should be secured to the side framing members through the nailing tab at the top and bottom on each side of the ﬁreplace front face. Use 8d nails(Figure 25).

Nailing Tab

8d Nail

1/2”

Min.

Note: The nailing tab and the area directly behind the nailing tab is exempt from the clearances described on Page5. Maintain at least 1/2” clearance from the ﬁrebox wrapper to the framing at the closest point of contact, directly adjacent to the ﬂange.

Figure 25

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

For Canadian Installations - A Cold Climate Kit, FTF8-CCK3-LD, must be installed in all indoor installations.

Step 5. Attach the cold climate kit, Model FTF8- CCK1-LD, around the chimney collar with the screws provided (see Figure 26).

Note: CCK1-LD model requires a 6" diameter Class 0 metallic air duct, acquired locally by installer.

Figure 26

Cold Climate Kit Installation Instructions:

1.Connect the 6" (152 mm) Class 0 metallic air duct to the collar on the chimney collar enclosure with the screws provided in the hardware kit. See Figure 27.

2.Route the Class 0 metallic air duct out the back wall or side wall, up through the ceil- ing or ﬂoor joists to an outside wall. The air duct’s inlet should be located above any anticipated snow level.

Note: If the ﬁreplace is installed against an inside wall, the Class 0 metallic air duct may be extended into a ventilated attic space at least 18" (457 mm) above the attic ﬂoor. Secure the duct hood to a vertical post with the inlet positioned downward. Ensure that nothing blocks the hood opening. This air duct must never terminate higher than the ﬁreplace chimney.

Install As Shown With

Opening In Downward

Position Do Not Block

Entrance

5 Foot Min. Height

From Outside

Ground Level

Figure 27