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Installation, Operation and Maintenance Manual
ONLY unvented gas log sets which have been found to comply with the Standard for Unvented
Room Heaters, ANSI/IAS/AGA Z21.11.2, are to be installed in this fireplace.
When an approved ANSI/ISA/AGA Z21.11.2 unvented room heater is installed in this fireplace, an
WARNING: DO NOT operate an unvented gas log set in this fireplace with the chimney re-
This fireplace is U.L. listed for use with the
"L" Series Chimney System components.
SB4800/SB4800HB Models
Woodburning Fireplaces
For Residential Installation
H2853 canopy must also be installed.
moved.
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Underwriter's Laboratories, Inc.®
53D9025
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Summary of Contents for Majestic SB4800
- Page 1 SB4800/SB4800HB Models Woodburning Fireplaces Installation, Operation and Maintenance Manual For Residential Installation ONLY unvented gas log sets which have been found to comply with the Standard for Unvented Room Heaters, ANSI/IAS/AGA Z21.11.2, are to be installed in this fireplace. When an approved ANSI/ISA/AGA Z21.11.2 unvented room heater is installed in this fireplace, an H2853 canopy must also be installed.
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Page 2: Table Of Contents
CONTENTS Congratulations! You have chosen the finest wood burning fireplace available. Your fireplace has been designed for years of heating and viewing enjoyment. Please take time to read this entire manual before installing or operating your fireplace. Table of Contents Listing and Code Approvals .......................... -
Page 3: Important Safety Information
IMPORTANT SAFETY INFORMATION Installer Owner Please leave these instructions with the owner. Please retain these instructions for future reference. 1. Read these instructions entirely before beginning any part of the installation. Save these instructions for any future repairs. 2. Use these instructions as a guide during the installation of the fireplace. 3. -
Page 4: Operation Guidelines
OPERATION GUIDELINES When a AK4 combustion air assembly and a combustion air duct are attached to the con- necting point on the left of the fireplace, combustion air may enter the firebox through a dampered opening behind the left side panel. This feature is designed for your benefit to reduce the room air used for combustion and to prevent excessive loss of heat from the room. -
Page 5: Clearances
Top Spacer 48” Fireplace Model 52” SB4800 (Floor Line) Flexible Duct Type FP-4-U CAUTION: Do Not Restrict Side Air Inlet Vents with Surround or Trim Materials Galvanized Metal Strip Combustion Air Assembly Nail to Framing Members FP1875 SB4800 features 8/08 53D9025... -
Page 6: Fireplace Dimensions
Gas Line 27” Opening 35���” Outside Air Opening 10����” 8����” 8���” 11���” Front 15�����” Right Side 53D9025 SB4800 dims 8/08 70 Linear Gain 52 Linear Gain 34 Linear Gain 70��� 52��� 34��� SCALE: 1/2" = 1'0" 11��� 17��� 35��� 47���... - Page 7 CHIMNEY SECTION DIMENSIONS 46���” 56���” 61����” 76�����” 21�����” 27�����” 30�����” 39�����” 16����” 25����” 30���” SCALE: 1/2" = 1'0" 4����” 9�����” 12�����” NOTE: Dimensions May Vary Slightly De to Manufacturing Tolerances. SCALE: 1/4" = 1'0" 46���” 61����” 56���” 76�����” 21�����” 27�����” 30�����”...
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Page 8: Fireplace Location
FIREPLACE LOCATION This fireplace does not weigh more than large pieces of furniture and can normally be located near a load bearing wall without requiring additional foundations or sup- ports. If however, the fireplace is to be trimmed with a heavy stone or brick facing Do not install fireplace and hearth extension, be sure the supporting structure is adequate. -
Page 9: Installation Preparation
INSTALLATION PREPARATION Survey the planned location for the fireplace for overhead plumbing or electrical wires, etc., that might complicate the installation or endanger persons installing or cleaning the chimney. Avoid a location where the chimney cap will be near abrupt changes in the roof shape, nearby wall or embankments, under or near trees or above the roof of a single story wing of a two story building as shown by Figure 7. - Page 10 INSTALLATION PREPARATION Figure 6 Single Story Installation with Attic Space LC Chimney Cap Flue Outlet Height 3’ Min. or 2’ Above Storm Collar Any Point Within 10’ Flashing (612 or 1212) Attic Space See Table 1 for Roof Open- ing Size 18 ft.
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Page 11: Floor Protection
1/2” covering provided by the H2068. Figure 9 12” Alternate brick or stone hearth Min. extension for use with the SB4800 fireplace when placed over a combustible floor without insulation board protection. 20” Min. 12”... -
Page 12: Floor Protection
FLOOR PROTECTION The ability of insulating material to retard the transfer of heat may be expressed as either Thermal Con- ductance (C), Thermal Conductivity (K), or Thermal Resistance (R). The mathematical relationship of these values and the formulas for converting one value to another is as follows: C=K divided by the material thickness Figure 11 (Example C = .43 divided by 1/2 (.50) -
Page 13: Fireplace Components
FIREPLACE COMPONENTS WSB48 Glass Doors Chimney Support LE30 30° Elbow Set SB4800 SB4800HB Telescoping Chimney Cap Combustion H2068 Air Assembly Chimney Cap Hearth Extension Kit LF-FS-2 612-1212 Firestop Spacer LCLF Flat flashing Flashing L18 L12 36"x72" (13.5" Diameter Hole) Chimney Sections... -
Page 14: Fireplace Installation
Before beginning the installation, be sure you have the proper parts in sufficient quantity. Refer to Figure 26 for proper identification of parts.Do not substitute parts. Use only parts listed for use with the Model SB4800/SB4800HB fireplaces. Fireplace Installation 1. -
Page 15: Chimney Installation
CHIMNEY INSTALLATION Figure 14 24” MIN. 36” 24” MIN. 36” NOTE: Flue outlet should be two feet above all portions of the building within ten feet as shown in the illustration. The chimney must not extend more than 90 inches above the roof without ad- ditional support. -
Page 16: Chimney Installation
CHIMNEY INSTALLATION Figure 15 Centerline of Actual Center Point Chimney Minimum Required Roof Opening Minimum Framed Opening “L” Series Roof Pitch Doublewall Chimney 0/12 17” x 17” Plumb Line 1/12 17” x 17” 1/8” 2/12 17” x 17” 1/4” 3/12 17”... -
Page 17: Chimney Offset Installation
CHIMNEY OFFSET INSTALLATION Elbow Installation The following are important points that should be observed when installing elbows on the fireplace: 1. The support straps of all elbows not installed directly on top of the fireplace should be nailed se- curely to the surrounding structure. This allows the support strap to carry the weight of the chim- ney above the elbow and prevents this weight from breaking the elbow or chimney sections apart. -
Page 18: Chimney Offset And Cap Installation
CHIMNEY OFFSET AND CAP INSTALLATION Continue chimney to proper Figure 19 height and install round chmney cap or chimney housing 17” 22����” Storm Collar Flashing Roof Firestop Spacer as Required 7���” 7����” Centerline of Fasten Suport Straps 2” Minimum Air 30°... -
Page 19: Chimney Cap Installation
CHIMNEY CAP INSTALLATION Model LC Chimney Cap SPECIAL NOTE: The proper height as previously explained is important to assure proper draft and safety. The chimney cap extends the flue outlet four inches above the top of the last section of chim- ney. - Page 20 CHIMNEY HEIGHT AND OFFSET CHARTS Intermediate Elbow Chimney Sections Total In. Height Sections 1’ 1¹⁄₂’ 3’ 4’ Offset (Inches) 1” 1¹⁄₂’ 3’ 4’ 4¹⁄₂ 26¹⁄₂ 31³⁄₄ 15¹⁄₂ 18¹⁄₂ 41¹⁄₄ 47¹⁄₄ 50³⁄₄ 57³⁄₄ 30¹⁄₂ 33¹⁄₂ 67³⁄₄ 36¹⁄₂ 72¹⁄₂ 39¹⁄₂ 77¹⁄₂ 45¹⁄₂ 92¹⁄₄...
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Page 21: Chimney Cap Chase Installation
CHIMNEY CAP CHASE INSTALLATION The preinstalled chimney sections should be no more than 13 inches below the top of the chase. The installation should be planned so that either a two-foot or three-foot chimney sec- tion will be used for the top section. This is necessary to ensure complete engagement of the inlet air telescope and chimney cap into the top section. -
Page 22: Outside Combustion Air Precautions And Recommendations
OUTSIDE COMBUSTION AIR PRECAUTIONS & RECOMMENDATIONS NOTE: The use of outside air for combustion is optional unless required by building codes. It is only necessary to supply outside combustion air to one side of the fireplace. Use the Model AK4 combustion air kit. -
Page 23: Outside Combustion Air Precautions And Recommendations
OUTSIDE COMBUSTION AIR PRECAUTIONS & RECOMMENDATIONS Outside Combustion Air Recommendations (continued) 1. Extremely long runs and numerous turns in the duct leading from the fireplace to the combustion air assembly should be avoided. These conditions will increase the resistance to the free flow of air through the duct. -
Page 24: Combustion Air Assembly
COMBUSTION AIR ASSEMBLY Model AK-4 Combustion Air Assembly 1. Remove the cover plate from the 4-inch outlet opening location on the left outside of the fire- place. DO NOT remove the cover if the outside air will not be connected. 2. -
Page 25: Gas Appliance Installation
GAS APPLIANCE INSTALLATION WARNING: Improper installation or operation of a gas appliance in this fireplace can allow unburned gas to leak out which will cause a fire or explosion hazard, or the release of poisonous carbon monox- ide into the dwelling which can cause serious injury or death to its inhabitants. To reduce these risks to a minimum, the following important notices and instructions should be read and followed carefully. - Page 26 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.
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Page 27: Trim And Door Installation
TRIM AND DOOR INSTALLATION Installation of Noncombustible Trim Materials to the Front Face of the Fireplace Figure 24 Noncombustible Facing Use Only Noncombustible Materials Material Below Top of Spacers Combustible Framing Members Facing Material to Top of Spacers Fireplace Face WARNING: The space between the face of the fireplace and the noncombustible facing material must be sealed. -
Page 28: Fireplace Operation
FIREPLACE OPERATION WARNING: If a decorative gas appliance is used in the fireplace the fireplace damper must be fixed in an open position. (See additional operation information in section titled “Operation Guide- lines”.) Advantages Of A Wood Burning Fireplace These are the practical, ecological advantages of wood as a fuel. Also to be considered is the aesthetic appeal. -
Page 29: A Few Words Of Caution
FIREPLACE OPERATION You’ll need a minimum of three logs, preferably four, to make a good fire. Add kindling and new logs as needed to rekindle a dying fire. New logs should be added at the rear grate after raking the coals toward the front. -
Page 30: Maintenance And Safety
MAINTENANCE & SAFETY Fuel Storage Wood can be dried sufficiently for burning within a few weeks if protected form rain in a low hu- midity area. It is far better to cut wood and allow it to dry for a year. In all cases, the wood should be stacked so that both ends of the sticks are exposed to the air and protected from rain. -
Page 31: Fireplace Maintenance
MAINTENANCE & SAFETY Fireplace Maintenance At the end of each heating season or when the fireplace will not be in use for an extended time, the ashes should be removed and the hearth area should be swept as clean as is practical. The slow absorption of moisture into the ashes over a long period of time could cause a condition which would be corrosive to the metal fireplace parts. - Page 32 MAINTENANCE & SAFETY 18. Do store your fuel supply at a distance equal to or greater than the spacing recommended for com- bustible materials from the fireplace. 19. Do build fires of moderate intensity in the fireplace for the first three fires to allow materials to adjust and cure before being subjected to the intense heat of a large fire.
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Page 33: Repair Parts Diagram And List
Part Name (Noun first) Qty. Part No. Weldment Damper Weight 053127 Handle Damper 037391 9025 Firebrick Back Assy. 052857 SB4800 parts Firebrick, Rt. Side Assy. 050447 8/08 Hearth Refractory 052779 Grate Painted Assy. 052874 Panel Firescreen w/ull 052736 Firebrick, Lt. Side Assy. - Page 34 PARTS DIAGRAM AND LIST All repair part orders should be placed through your local dealer. To ensure prompt and accurate ser- vice, please provide the following information when placing a repair part order: Model number of your Appliance, Part Name, Part Number, and Quantity of parts needed. Technical Service Department MHSC 149 Cleveland Drive...
- Page 35 NOTES 53D9025...
- Page 36 NOTES 53D9025...
- Page 37 NOTES 53D9025...
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Page 38: Limited Warranty
LIMITED WARRANTY FACTORY-BUILT FIREPLACE AND COMPONENTS (except blowers) What is Covered and For How Long • Five-Year Coverage - For five years from the date this fireplace and components are first purchased for use, MHSC will, at its option, repair or replace any defective part of this fireplace or components, or refund to you a sum not to exceed the factory retail price in effect at the time of purchase. - Page 39 ATTENTION APPLIANCE INSTALLER PLEASE RETURN THESE OPERATING AND INSTALLATION INSTRUCTIONS TO THE APPLIANCE FOR CONSUMER USE. 53D9025...
- Page 40 MHSC 149 Cleveland Drive • Paris, Kentucky 40361 www.mhsc.com AUGUST 2008 53D9025 • Rev. 3...
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