Lennox Hearth LSBV-4228MP-H, LSBV-4228EN Installing the Fireplace, Consult all local codes

4.Use this information and consult your local building code to determine if you need addi- tional support.

If you plan to raise the fireplace and hearth extension, build the platform assembly then position fireplace and hearth extension on top. Secure the platform to the floor to prevent possible shifting.

INSTALLING THE FIREPLACE

Step 1. Construct the Appliance Framing - Frame appliance enclosure as illustrated in Figures 4 through 7 on page 5.

Note: The framed depth, 20-1/2" (521 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 20-1/2" (521 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.

Step 2. Route Gas Supply Line - Route gas line (Figure 8 ) using techniques and materi- als prescribed by local and/or national codes. It is recommended that a gas line of 1/2" or greater diameter be used to allow full gas volume to the fireplace. Undue pressure loss will occur if the pipe is too small. The appli- ance, as set up at the factory, is best suited for use with a gas line routed from the left side. The gas line may however be alternately routed from the right side.

This unit is provided with a gas line/switch wire outlet at both sides (see Figure 2 ). The gas line may be routed through this opening at either the right or left side. Route the Millivolt switch wire through the opening opposite form the gas line. To avoid cutting the Millivolt switch wire, do not route the switch wire through the opening with the gas line.

When rigid pipe is used, an ANSI approved manual shut-off valve and union must be in- stalled upstream of the fireplace.

Ensure that a sediment trap is installed in the existing gas line, if not, install a sediment trap upstream to prevent moisture and contami- nants from passing through trap to the appli- ance controls and burners. Failure to do so could prevent the appliance from operating reliably.

An external regulator must be used on all propane (L.P.G.) heaters to reduce the supply tank pressure to 13" w.c. (maximum). Any copper tubing used to supply propane (L.P.G.) from the tank must be internally tinned.

IMPORTANT: HOLD GAS VALVE SECURELY TO PREVENT MOVEMENT WHEN CONNECT- ING TO INLET GAS LINE

WARNING: CONNECTING DIRECTLY TO AN UNREGULATED PROPANE (L.P.G.) TANK MAY CAUSE AN EXPLOSION.

All appliances are equipped with a gas flex line and shutoff valve attached directly to the gas control valve. To quickly and easily complete the gas line routing, use the gas flex line kit.

LEFT

SIDE

7-1/4" (184 mm)

3-1/2" (79 mm)

RIGHT

SIDE

10-1/2" (269 mm)

3-1/2" (79 mm)

Figure 8

Step 3. Position the Appliance - Slide the fireplace into prepared framing or position fire- place in its final position and frame later.

Refer to fireplace drawings and specifications on pages 4 and 5 for framing dimensions and details. Framing header may be positioned directly on the fireplace top spacers.

IMPORTANT: UNDER NO CIRCUMSTANCES CAN THE FIREPLACE TOP SPACERS (refer to

FIGURE 2 ) 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 DI- RECT CONTACT WITH THE TOP SPACERS BUT MAY NOT BE SUPPORTED BY THEM.

Fireplace should be secured to side framing members using the full length 1/2 inch nailing flanges that are integral to the appliance at each side. Use 6d nails or equivalent (Figure 9 ).

6d Nail or Equivalent

Figure 9

Note: The nailing flanges and the area directly behind the nailing tabs are exempt from the clearances described on the fireplace clearance label.

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NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.