26
53D9025
GAS APPLIANCE INSTALLATION
7. Pack the insulation removed in step 4 around the pipe to prevent air flowing through the tube
either into or out of the firebox.
8. Be sure the gas is turned off at the appliance, then turn the gas on at the cut off valve and test
the gas line connections for leaks with soapy water solution or a liquid leak detector. DO NOT
USE A MATCH OR OTHER FLAME SOURCE TO CHECK FOR GAS LEAKS. If a gas leak is
detected, turn the gas off immediately and fix the leak.
9. Proceed with testing the appliance for leaks and adjusting it as required by the manufacturer
instructions.
CAUTION:
When using a gas appli-
ance, the fireplace damper must be
set in fully open position.
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Figure 23
Outer Fireplace Wrap
Inner Fireplace Wrap
Side Brick
24” Max.
Fireplace Firebrick
Hearth Brick
Gas Line Access Tube
Repack Insulation Around
Gas Line Where it Passes
Through Gas Line Access
Tube for Proper Seal
Maintain 1/2” Minimum Air Space
Clearance to Combustibles for
Gas Line Out to 4” From Side of
the Fireplace
Combustible Materials May Be Located
at Zero Clearance to Gas Line Beyond
4” From Fireplace Side.
Back
Refractory
Brick
Side Refractory
Brick
Knockout
Gas Line Plumbing Detail
Applying Decorative Trim To The Fireplace
Do not allow the trim materials to extend closer than 3/8 inch to the vertical edges of the firebox
opening if you plan to equip the fireplace with glass doors.
The face of your fireplace may be left exposed or trimmed with any noncombustible material
such as brick, stone or marble. If a trim is installed, be sure it is fastened snugly to the face of the
fireplace. A crack between the material and the face of the fireplace could pose a fire hazard and
impair the proper operation of the fireplace. Blocking the fireplace with framing and attaching the
base to the supporting floor will further reduce the possibility of such a crack developing.
Wall ties should be fastened to the face of the fireplace with sheet metal screws and placed in the
mortar joints of masonry trim.
Combustible material must not be installed below the top spacers of the fireplace or overlap the
sides of the fireplace face. Seal the face of the fireplace to the surrounding wall with non-com-
bustible caulk or trim materials to prevent cold air leakage around the fireplace.
The trim should not block or restrict in any way the flow of air into the side air inlets in the face of
the fireplace.
Be sure to provide the required floor protection as described in a preceding section of this manu-
al.
Combustible mantles and trim must be installed in accordance with the National Fire Protection
Association - ANSI NFPA 211 Standard - Section 7-2.3.3.
Содержание SB4800
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