Majestic B-Vent Series Manual

B-Vent Series
Natural Vent Gas Fireplace
Installation & Operating Instructions

""63"6COVER

WARNING
IF THE INFORMATION IN THESE INSTRUCTIONS IS
NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION
MAY RESULT CAUSING PROPERTY DAMAGE, PER-
SONAL INJURY OR LOSS OF LIFE.
— Do not store or use gasoline or other flam-
mable vapors and liquids in the vicinity of
this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not
use any phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas suppli-
er’s instructions.
• If you cannot reach your gas supplier, call
the fire department.
— Installation and service must be performed
by a qualified installer, service agency or the
gas supplier.
WARNING: Improper installation, adjustment,
alteration, services or maintenance can cause
injury or property damage. Refer to this man-
ual. For assistance or additional information
consult a qualified installer, service agency or
the gas supplier.
DUE TO HIGH TEMPERATURES, THE APPLI-
ANCE SHOULD BE LOCATED OUT OF TRAF-
FIC AND AWAY FROM FURNITURE AND DRAP-
ERIES.
CHILDREN AND ADULTS SHOULD BE ALERT-
ED TO THE HAZARDS OF HIGH SURFACE
TEMPERATURE AND SHOULD STAY AWAY TO
AVOID BURNS OR CLOTHING IGNITION.
YOUNG CHILDREN SHOULD BE SUPERVISED
WHEN THEY ARE IN THE SAME ROOM AS THE
APPLIANCE.
CLOTHING OR OTHER FLAMMABLE MATE-
RIAL SHOULD NOT BE PLACED ON OR NEAR
THE APPLIANCE.
KEEP THE ROOM AREA CLEAR AND FREE
FROM COMBUSTIBLE MATERIALS, GASO-
LINE AND OTHER FLAMMABLE VAPORS AND
LIQUIDS.
Models:
400BBV, 400SBV, 500SBV
62D4037 5/09 Rev. 11
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future refer-
ence.

62D4037
2
BBV, SBV Series Natural Vent Gas Fireplaces TABLE OF CONTENTS
Thank you and congratulations on your purchase of an MHSC Fireplace
Please read the Installation and Operation Instructions before using the appliance!
IMPORTANT: Read all instructions and warnings carefully before starting installation.
Failure to follow these instructions may result in a possible fire hazard and will void the warranty.
Important Safety Information ...........................3
Code Approval ...................................................4
Product Specifications
High Elevations ...............................................5
Gas Pressures ................................................5
Gas Specifications, Orifice Sizes ....................5
Pre-Installation Information
Before You Start ..............................................5
Fireplace Framing ...........................................6
Fireplace Location ...........................................8
Clearances .........................................................8
Secure Fireplace .................................................9
Finish Material .................................................9
Venting Installation ..........................................10
Installation Precautions .................................10
Installation Planning ......................................10
Firestops .......................................................11
Termination ...................................................11
Outside Combustion Air ................................12
Combustion Air Assembly .............................13
Fireplace Installation .......................................14
Check Gas Type ............................................14
Installing Gas Piping to Fireplace/Burner Sys-
tem Location .................................................14
Checking Gas Pressure ..................................16
Electrical Installation.......................................17
Electrical Wiring ............................................17
Remote Wall Mounted Switch .......................17
Electronic Pilot Ignition Wiring ......................18
Final Installation ..............................................19
Rock Wool Placement ...................................19
Log Placement .............................................19
Lava Rock and Ember Placement ................19
Operating Instructions ....................................20
What To Do If You Smell Gas ........................20
Lighting Pilot for the First Time .....................20
Lighting Pilot .................................................21
Lighting Burner ..............................................22
Lighting Electronic IGN .................................23
To Turn Off Gas .............................................23
Cleaning and Maintenance .............................24
Burner, Pilot and Control Compartment ........24
Pilot Flame ....................................................24
Burner ...........................................................24
Burner Flame ................................................24
Vent System ..................................................25
Logs ..............................................................25
Rock Wool .....................................................25
Replacement Parts ..........................................26
Firebox Components .....................................26
Logs ..............................................................26
Standing Pilot - Millivolt Control ....................28
Electronic Ignition ..........................................30
Troubleshooting ..............................................32
Warranty ...........................................................39

62D4037 3
BBV, SBV Series Natural Vent Gas Fireplaces
IMPORTANT SAFETY INFORMATION
INSTALLER
Please leave these instructions with the appliance.
OWNER
Please retain these instructions for future reference.
This fireplace is a decorative gas appliance. This fire-
place must be properly installed by a qualified service
person.
CARBON MONOXIDE POISONING: Early signs of
carbon monoxide poisoning are similar to the flue with
headaches, dizziness and/or nausea. If you have these
signs, the fireplace may not have been installed properly.
Get fresh air at once! Have the fireplace inspected and
serviced by a qualified service person. Some people are
more affected by carbon monoxide than others. These
include pregnant women, people with heart or lung dis-
ease or anemia, those under the influence of alcohol,
and those at high altitudes.
Propane/LP gas and natural gas are both odorless. An
odor-making agent is added to each of these gases. The
odor helps you detect a gas leak. However, the odor
added to these gases can fade. Gas may be present
even though no odor exists.
Make certain you read and understand all warnings.
Keep this manual for reference. It is your guide to safe
and proper operation of this fireplace.
1. This appliance is only for use with the type of gas
indicated on the rating plate. This appliance is not
convertible for use with other gases unless a certi-
fied kit is used.
2. For propane/LP fireplace, do not place propane/LP
supply tank(s) inside any structure. Locate propane/
LP supply tank(s) outdoors. To prevent performance
problems, do not use propane/LP fuel tank of less
than 100 lbs. capacity.
3. If you smell gas:
• shut off gas supply
• do not try to light any appliance
• do not touch any electrical switch; do not use
any phone in your building
• immediately call your gas supplier from a neigh-
bor’s phone. Follow the gas supplier’s instruc-
tions.
4. Never install the fireplace:
• in a recreational vehicle
• where curtains, furniture, clothing, or other flam-
mable objects are less than 42” from the front,
top or sides of the fireplace
• in high traffic areas
• in windy or drafty areas
5. This fireplace reaches high temperatures. Keep
children and adults away form hot surfaces to avoid
burns or clothing ignition. Fireplace will remain hot
for a time after shutdown. Allow surfaces to cool be-
fore touching.
6. Carefully supervise young children when they are in
the room with fireplace.
7. Do not modify fireplace under any circumstances.
Any parts removed for servicing must be replaced
prior to operating fireplace.
8. Turn fireplace off and allow to cool before servic-
ing, installing or repairing. Only a qualified service
person should install, service or repair the fireplace.
Have burner system inspected annually by a quali-
fied service person.
9. You must keep control compartments, burners and
circulating air passages clean. More frequent clean-
ing may be needed due to excessive lint and dust
form carpeting, bedding material, pet hair, etc. turn
off the gas valve and pilot light before cleaning fire-
place.
10. Have venting system inspected annually by a quali-
fied service person. If needed, have venting system
cleaned or repaired. Refer to Cleaning and Mainte-
nance, Page 24.
11. Keep the area around your fireplace clear of com-
bustible materials, gasoline and other flammable va-
por and liquids. Do not run fireplace where these are
used or stored. Do not place items such as clothing
or decorations on or around fireplace.
12. Do not use this fireplace to cook food or burn paper
or other objects.
13. Never place anything on top of fireplace.
Continued on Page 4
• Read this owner’s manual carefully and completely before trying to assemble, operate,
or service this fireplace.
• Any change to this fireplace or its controls can be dangerous.
• Improper installation or use of this fireplace can cause serious injury or death from
fire, burns, explosions, electrical shock and carbon monoxide poisoning.
WARNING

62D4037
4
BBV, SBV Series Natural Vent Gas Fireplaces
CODE APPROVAL
These appliances have been tested by CSA and found to comply with the established standards
for VENTED GAS FIREPACES in the US and Canada as follows:
LISTED VENTED GAS FIREPLACE
TESTED TO: ANSI Z21.50a-2008 CSA2.22a-2008
14. Do not use any solid fuels (wood, coal, paper, card-
board, etc.) in this fireplace. Use only the gas type
indicated on rating plate.
15. This appliance, when installed, must be electrically
grounded in accordance with local codes or in the
absence of local codes, with the National Electri-
cal Code, ANSI/NFPA 70 or the Canadian Electrical
Code, CSA C22.1.
16. Do not obstruct the flow of combustion and ventilation
air in any way. Provide adequate clearances around
air openings into the combustion chamber along with
adequate accessibility clearance for servicing and
proper operation.
17. When the appliance is installed directly on carpeting,
tile or other combustible material other than wood
flooring, you must set appliance on a metal or wood
panel or hearth pad extending the full width and depth
of the appliance.
18. Do not use fireplace if any part has been exposed to
or has been under water. Immediately call a quali-
fied service person to arrange for replacement of the
unit.
19. Do not operate fireplace if any log is broken.
20. Do not use a blower fireplace, heat exchanger fire-
place or any other accessory not approved for use
with this fireplace.
21. The fireplace is not intended for use with a thermo-
stat.
22. This appliance must be installed with draft hood in
same atmospheric pressure zone as the combustion
air inlet to the appliance.
23. For Massachusetts Residents Only: This product
must be installed by a licensed plumber or gas fitter
when installed within the Commonwealth of Massa-
chusetts. Flexline installation must not exceed 36”.
IMPORTANT SAFETY INFORMATION
Continued on Page 4
IMPORTANT:
PLEASE READ THE FOLLOWING CAREFULLY
It is normal for fireplaces fabricated of steel to give off
some expansion and/or contraction noises during the
start up or cool down cycle. Similar noises are found
with your furnace heat exchanger or car engine.
IMPORTANT:
PLEASE READ THE FOLLOWING CAREFULLY
It is not unusual for gas fireplace to give off some odor
the first time it is burned. This is due to the manufactur-
ing process.
Please ensure that your room is well ventilated dur-
ing burn off - open all windows.
It is recommended that you burn your fireplace for at
least en (10) hours the first time you use it.
Never connect unit to private
(non-utility) gas wells. This gas is com-
monly known as wellhead gas.
WARNING
WARNING
Proposition 65 Warning: Fuels listed in gas, wood burning or oil fired appliances,
and the products of combustion of such fuels, contain chemicals known to the State
of California to cause cancer, birth defects and other reproductive harm.
California Health and Safety Code Sec. 25249.6

62D4037 5
BBV, SBV Series Natural Vent Gas Fireplaces
PRODUCT FEATURES
PRODUCT SPECIFICATIONS
• This appliance has been certified for use with either
natural or propane gas. See appropriate data plates.
• This appliance is not for use with solid fuels.
• The appliance must be installed in accordance with
local codes if any. If none exist use the current instal-
lation code, ANSI Z223.1/NFPA 54 in the US and
CSA B149 in Canada.
• The appliance must be properly connected to a vent-
ing system.
• The appliance is not approved for closet or recessed
installations.
FP1920
BBV SBV parts
9/08
Gas Control
(not shown)
1/2”
Nailing
Flange
5/8”
Nailing
Flanges
1/2”
Nailing
Flange
Figure 1 -
BBV/SBV Fireplace
FP1920
HIGH ELEVATIONS
Input ratings are shown in BTU per hour and are cer-
tified without deration for elevations up to 4,500 feet
(1,370 m) above sea level.
For elevations above 4,500 feet (1,370 m) in USA, in-
stallation must be in accordance with the current ANSI
Z223.1/NFPA 54 and/or local codes having jurisdic-
tion.
In Canada, please consult provincial and/or local au-
thorities having jurisdiciton for installation at elevations
above 4,500 feet (1,370 m).
GAS PRESSURES
Natural Propane (LP)
Inlet Minimum 4.5” w.c. 11.0” w.c.
Inlet Maximum 10.5” w.c. 13.0” w.c.
Manifold Pressure 3.5” w.c. 10.0” w.c.
GAS SPECIFICATIONS & ORIFICE SIZE
Max.Input Min. Input Orifice
Model Fuel BTU/h BTU/h Size
400BBVNV Nat. 22,000 16,000 #43
400BBVPV LP 22,000 14,500 #55
400SBVNV Nat. 29,000 16,500 #41
400SBVPV LP 29,000 16,300 #53
500SBVNV Nat. 31,500 19,000 #37
500SBVPV LP 31,500 20,000 #52
BEFORE YOU START
Read this homeowner manual thoroughly and follow all
instructions carefully. Inspect all contents for shipping
damage and immediately inform your dealer if any dam-
age is found. Do not install any unit with damaged, incom-
plete, or substitute parts. Check your packing list to verify
that all listed parts have been received. You should have
the following:
• Fireplace (Firebox and Burner System)
• Log Set • Volcanic Rock
• Rock Wool • White Toggle Switch
• Switch Cover Plate • Plastic Bag (1)
• Ziplock Bag 2” x 3” x 3”
ITEMS REQUIRED FOR INSTALLATION
• Phillips Screwdriver • Framing Materials
• Hammer • Wall Finishing Materials
• Saw and/or saber saw • Level
• Electric Drill and Bits • Tee Joint
• Pliers • Measuring Tape
• Square • Pipe Wrench
• Caulking Material (Noncombustible)
• Fireplace Surround Material (Noncombustible)
• Piping Complying with Local Codes
• Pipe Sealant Approved for use with Propane/LPG
(Resistant to Sulfur Compounds)

62D4037
6
BBV, SBV Series Natural Vent Gas Fireplaces FIREPLACE DIMENSIONS & FRAMING
Do not fill spaces around firebox with
insulation or other materials. This could
cause a fire.
WARNING
316” (797 mm)
8”
(203 mm)
14”
(356 mm)
1456O”
(368 mm)
Min. Rough
Opening
Depth
4056O” (1029 mm)
Min. Rough Opening Width
4”
B-Vent
1/2” or 5/8”
Drywall
Spacers
40"
(1016 mm)
34”
(864 mm)
2156O”
(546 mm)
36” (914 mm)
40” (1016 mm)
4056O”
(1029 mm)
Min. Rough
Opening
Height
1/2" or 5/8"
Drywall
Spacers
166M”
(426 mm)
756M”
(184 mm)
26QE”
(56 mm)
96”
(244 mm)
436" (1102 mm)
6156M” (1556 mm)
306”
(778 mm)
436" (1102 mm)
624037
400BBV dims
6”
(152 mm)
Figure 2 -
400BBV Fireplace
Dimensions and
Framing
FIREPLACE FRAMING
Firebox framing can be built before or after the appliance is set in place. Construct firebox framing
following Figures 2 or 3 for your specific installation requirements. Refer to Figures 2 & 3 for firebox
dimensions. The framing headers may rest on the top of the firebox standoffs.
The firebox may be installed directly on a combustible floor or raised on a platform of an appropri-
ate height. When the firebox is installed directly on carpeting, tile or other combustible material,
other than wood flooring, the firebox shall be installed on a metal or wood panel extending the full
width and depth of the enclosure.

62D4037 7
BBV, SBV Series Natural Vent Gas Fireplaces
FIREPLACE DIMENSIONS & FRAMING
21”
(533 mm)
2156O”
(546 mm)
Min. Rough
Opening
Depth 4”
B-Vent
1/2” or 5/8”
Drywall
Spacers
40"
(1016 mm)
34”
(864 mm)
2156O”
(546 mm)
B
A
4056O”
(1029 mm)
Min. Rough
Opening
Height
1/2" or 5/8"
Drywall
Spacers
166M”
(426 mm)
756M”
(184 mm)
26QE”
(56 mm)
96”
(244 mm)
624037
400BBV dims
D - Min. Rough Opening Width
656O”
(165 mm)
13(6QE”
(341 mm)
C
E
F
G
G
6”
(152 mm)
Figure 3 -
400SBV, 500SBV Fireplace
Dimensions and Framing
Ref. 400SBV 500SBV
A 40” (1016 mm) 46” (1168 mm)
B 36” (914 mm) 42” (1067 mm)
C 24ZC\zn” (630 mm) 30ZC\zn” (783 mm)
D 40Z\x” (1029 mm) 46Z\x” (1181 mm)
Framing Dimensions
E 67M\,” (1724 mm) 73M\,” (1876 mm)
F 34” (864 mm) 37” (940 mm)
G 48” (1219 mm) 52Z\v” (1327 mm)
For easier installation on 400SBV and 500SBV
units, place gas supply pipe 6” to 8” inside
unit. Measure from the center of the gas
knock-out hole located at the bottom of the
left side.
NOTE

62D4037
8
BBV, SBV Series Natural Vent Gas Fireplaces PRE-INSTALLATION INFORMATION
FIREPLACE LOCATION
Plan for the installation of your appliance. This includes determining where the unit is to be installed,
the vent configuration to be used, framing and finishing details, and whether any optional acces-
sories (i.e. wall switch, or remote control) are desired. Consult your local building code agency to
ensure compliance with local codes, including permits and inspections.
The following factors should be taken into consideration:
• Clearance to side-wall, ceiling, woodwork and windows. Minimum clearances to combustibles
must be maintained.
• This fireplace may be installed along a wall, across a corner or use an exterior chase.
• Location should be out of high traffic areas and away form furniture and draperies due to heat
from appliance.
• Never obstruct the front opening of the fireplace.
• Do not install in the vicinity where gasoline or other flammable liquids may be stored.
• Vent pipe routing. Refer to Venting section found in this manual for allowable venting configura-
tions.
• These units can be installed in a bedroom. Refer to the National Fuel Gas Code ANSI Z233.1/
NFPA 54 - (current edition), the Uniform Mechanical Code - (current edition), and Local Building
Codes for specific installation requirements.
CLEARANCES TO COMBUSTIBLES
WARNING
Follow these instructions carefully
to ensure safe installation. Failure to
follow instructions exactly can cre-
ate a fire hazard.
The appliance cannot be installed on
a carpet, tile or other combustible
material other than wood flooring. If
installed on carpet or vinyl flooring,
the appliance shall be installed on a
metal, wood or noncombustible ma-
terial panel extending full width and
depth of the appliance.
&0
CLEARANCES

Combustible Mantel
Side Wall
Ceiling
72” Minimum
8” Minimum
Minimum 3”
From Both Side
Walls to
Opening
12” Maximum
Depth
FP2018
Figure 4 -
Clearances

62D4037 9
BBV, SBV Series Natural Vent Gas Fireplaces
SECURE FIREPLACE TO FLOOR OR FRAMING
The fireplace must be secured to
the floor and/or to framing studs
as shown in Figure 5. Use two (2)
wood screws or masonry/con-
crete screws to secure fireplace
to the floor. Use four (4) screws
to attach fireplace to framing.
The side brackets are adjust-
able from 1/2” to 5/8” to accom-
modate different thicknesses of
material.
&0
SECURETOFRAMING

Framing
1/2” Nail
Flange
Screws
Screws
Screws
Framing
1/2” Nail
Flange
1/2” Nail
Flange
1/2” Nail
Flange
5/8” Nail Flange
5/8” Nail
Flange
FP2019
Figure 6 -
Secure Fireplace to Floor and Framing Studs
FINISHING MATERIAL
NOTE: Any remote wiring (i.e. remote control and wall switch) must be done prior to final fin-
ishing to avoid costly reconstruction.
WARNING
Never obstruct or modify
the air inlet. This may create
a fire hazard.
Only noncombustible materials (i.e. brick, tile, slate, steel or other materials with a UL fire rating of Zero)
may be used to cover the black surface of the appliance. A 300° F minimum adhesive may be used to
attach facing materials to the black surface. If joints between the finished wall and the fireplace sur-
round are sealed, a 300° F minimum sealant material (General Electric RTV 103 or equivalent) must
be used.

62D4037
10
BBV, SBV Series Natural Vent Gas Fireplaces VENTING INSTALLATION
INSTALLATION PLANNING
“B” VENT PIPE
See venting installation instructions provided by the B-
Vent manufacturer.
NOTE: This APPLIANCE MUST BE INSTALLED using
“B” vent type pipe that has been listed by a nationally rec-
ognized testing agency.
Refer to B-Vent Pipe Sizing chart for proper elbow offset
runs.
Chimney centerline dimensions are referenced on Pages
6 & 7, Figures 2 & 3.
• Minimum vertical chimney height - 8’ as measured
from top of unit to top of termination.
• Minimum vertical height - 40’ as measured from top
of unit to top of termination.
• Minimum chimney height with two (2) 90° elbows
- 8’.
• Elbow requirements: Allow a maximum of two (2)
90° elbows or four (4) 45° elbows per installation.
NOTE: Two (2) 45° elbows = one (1) 90° elbow
• Horizontal run must never exceed 50% of the height
of the vent system. Horizontal runs are measured
center pipe to center pipe.
• Horizontal runs must have a minimum 1/4” rise per
foot and may not run level or down hill.
Attaching 4” Flue to BBV:
• The first section of B-vent flue should overlap
the appliance collar. The appliance collar may be
crimped to ease the installation of the first section
of flue.
• Do not penetrate the pipe inner liner with sheet met-
al screws. Attach the initial flue section to the top
of the firebox chassis with 1/4” self-tapping screws
and plumbers strap. Attach the strap toward the
bottom of the flue section and pull taut for proper
tension to the firebox.
Attaching 6” Flue to SBV:
• The 6” appliance collar is slightly larger that the in-
ner wall of most B-vent 6” pipe sections. Install the
first section of B-vent by slipping the flue’s inner
wall tot he inside of the appliance collar. The B-vent
outer wall will slip to the outside of the appliance
collar.
• Do not penetrate the pipe inner line with sheet met-
al screws. Attach the initial flue section tot he top
of the firebox chassis with 1/4” self-tapping screws
and plumber’s strap. Attach the strap toward the
bottom of the flue section and pull taut for proper
tension to the firebox.
Support the Pipe
• Support horizontal runs a minimum of every five (5)
feet. Refer to vent manufacturer’s instructions for
proper support on vertical runs (45° or less).
• Support offsets so the weight of the pipe is not bear-
ing down on the elbows.
WARNING
Read all instructions completely and thoroughly before attempting installation.
Failure to do so could result in serious injury, property damage or loss of life.
Operation of improperly installed and maintained venting system could result in
serious injury, property damage or loss of life.
NOTICE
Failure to follow these in-
structions will void the war-
ranty.
INSTALLATION PRECAUTIONS
Consult local building codes before beginning the instal-
lation. The installer must make sure to select the proper
vent system for installation. Before installing vent kit, the
installer must read this fireplace manual and vent kit in-
structions.
Only a qualified installer/service person should install
venting system. The installer must follow these safety
rules:
• Wear gloves and safety glasses for protection.
• Use extreme caution when using ladders or when
on rooftops.
• Be aware of electrical wiring locations in walls and
ceilings.
The following actions will void the warranty on your vent-
ing system:
• Installation of any damaged venting component.
• Unauthorized modification of the venting system.
• Installation of any component part not manufac-
tured or approved by MHSC.
• Installation other than permitted by these instruc-
tions.
B-Vent Pipe Sizing
400BBV 400SBV 500SBV
4” 6” 6”

62D4037 11
BBV, SBV Series Natural Vent Gas Fireplaces
VENTING INSTALLATION
FIRESTOPS
• Locate chimney centerline dimension from a com-
bustible back wall. Figures 2 & 3. Minimum firestop
dimensions are found in the vent manufacturer’s in-
structions. Clearances to combustibles may also be
found on the sides of the flue sections.
• Avoid cutting any load-bearing framing members.
Figures 6 & 7
To position firestop refer to Figures 6 & 7. Only one firestop
is required per frame.
FP2020
firestop
10/08
Nails
Firestop
Spacer
Joist
FP2020
Nails
Firestop
Spacer
Joist
Figure 6 -
Install Firestop in Attic
Figure 7 -
Install Firestop
in Ceiling
NOTICE: When installing in a chase, you should insu-
late the chase as you would the outside walls of your
home. This is especially important in cold climates.
Insulation should be considered a combustible ma-
terial. Maintain proper clearances to all combustible
materials.
NOTICE: Treatment of firestops and construction of
the chase may vary from building type to building
type. These instructions are not substitutes for the
requirements of local building codes. You must fol-
low all local building codes.
TERMINATE THE PIPE
• Maintain proper clearance to the roof using the
chart below.
• Vents shall terminate at least 8’ from a vertical
wall.
• Maintain 2’ minimum clearance to any other gas
terminations or plumbing vents, as measured from
the outside edge of the terminations or vents.
H
X
12”
FP2405
min chimney ht
Figure 8 -
Minimum Chimney Height
FP2405
Termination Height Table
Use this table to determine the minimum height avove
the roof
Minimum Height
Roof Pitch Feet Meters
Flat to 7/12 1 0.3
Over 7/12 to 8/12 1.5 0.46
Over 8/12 to 9/12 2 0.61
Over 9/12 to 10/12 2.5 0.76
Over 10/12 to 11/12 3.25 0.99
Over 11/2 to 12/12 4 1.22
Over 12/12 to 14/12 5 1.52

62D4037
12
BBV, SBV Series Natural Vent Gas Fireplaces OUTSIDE COMBUSTION AIR
NOTE: The use of outside air for combus-
tion is optional unless required by building
codes. It is only necessary to supply outside
combustion air to one side of fireplace. Use
model OAC4 combustion air kit (refer to Page
17).
1. Avoid extremely long runs and numer-
ous turns in duct leading from fireplace
to combustion air assembly. These condi-
tions increase the resistance to free flow
of air through duct. Figures 9 and 10
2. Locate combustion air assembly at an
exterior location. Make sure the location
cannot be accidentally blocked. Locate
assembly above snow line to prevent
snow from blocking assembly.
3. Never mount combustion air inlet assem-
bly in garage or storage area where com-
bustible fumes (gasoline) might be drawn
into fireplace.
4. Combustion air may be drawn from crawl
space under house when adequate sup-
ply of air is provided by open ventilation.
Figure 9
NOTE: Never take combustion air from attic
space or garage space.
NOTE: Install outside combustion air ONLY
ON LEFT-HAND SIDE of fireplace.
&0
/!BASEMENT

Duct Extend-
ed to Miss
Joist
To Outside
Wall
FP2021
Figure 9 -
Install Unit Above Basement or Crawl Space
&0
/!SOFFIT

Inlet Grille
in Soffit
(Overhang)
8” Maximum
Figure 10 -
Install Unit on Concrete Slab with Optional Outside Air Runs
FP2022

62D4037 13
BBV, SBV Series Natural Vent Gas Fireplaces
COMBUSTION AIR ASSEMBLY
MODEL OAC-4 COMBUSTION AIR ASSEM-
BLY
1. Remove the cover plate from the 4” outlet opening
location on the left outside of the fireplace.
2. Place starting collar (4”) into hole on left side of fire-
place. Fireplace shortest side of air starting collar
through fireplace outer wrap. Fasten starting collar in
place with four (4) sheet metal screws provided. Fig-
ure 11
NOTE: The air starting collar extends through the
fireplace outer wrap. When the air starting collar is
securely attached, it will form a seal against the fire-
place wall.
3. Cut a 6” diameter opening for model OAC-4 in the
outside wall covering where the outside vent is to be
located. Figure 13
4. Select and cut a piece of duct long enough to attach
to the fireplace and stick out at least 3” beyond the
face of the wall to which the OAC-4 inlet air vent will
be attached. Cut duct with a standard pocket knife.
Figure 12
WARNING
DO NOT remove the cover
if the outside air will not be
connected.
WARNING
Do not use a combustible duct. Always use
UL Listed Class 0 or 1 duct material. If nec-
essary to splice duct, use Model 403 duct
connector to splice duct sections.
&0
ATTACHSTARTCOLLAR

Left Side of
Fireplace OAC-4
Starting
Collar
Sheet Metal
Screws
Shorter End of Air
Starting Collar
FP2023
Figure 11 -
Attach Outside Air Starting Collar to Left Side of
Fireplace
&0
ATTACHOUTSIDEAIRDUCT

Air Starting Collar
Screws
Screws
Duct
Left Side of
Fireplace
FP2024
Figure 12 -
Attach Outside duct to Starting Collar
&0
COMBAIRASSY

6” Diameter
Hole
Duct Ex-
tending 3”
Min.
AK-4 Inlet Air
Vent
Nail
Hole
Screws
FP2025
Figure 13 -
Combustion Air Assembly for Model No. OAC-4
5. If using insulating duct, push the insulation back from
one end of the duct approximately 2”. Figure 13
6. Slip the exposed end of the duct over the starting col-
lar on the fireplace.
7. Using the sheet metal screws provided, secure the
duct end to the collar attached to the fireplace.
8. Nail or screw the combustion air assembly to the sur-
face of the wall.

62D4037
14
BBV, SBV Series Natural Vent Gas Fireplaces FIREPLACE INSTALLATION
CHECK GAS TYPE
Use proper gas type for the fireplace you are installing. If you have conflicting gas types, do not
install fireplace. See dealer where you purchased the fireplace for proper fireplace for your gas
type.
INSTALLING GAS PIPING TO FIREPLACE LOCATION
INSTALLATION ITEMS NEEDED
Before installing, make sure you have the items listed below:
• External regulator (supplied by installer) • Tee Joint
• Piping (check local codes) • Pipe wrench
• Sealant (resistant to propane/LP gas)
• Test gauge connection*
• Sediment trap (optional but recommended)
• Approved flexible gas line with gas connector (if allowed by
local codes - not provided)
*A CSA design-certified equipment shutoff valve with 1/8”
NPT tap is an acceptable alternative to test gauge connec-
tion. Purchase the CSA design-certified equipment shutoff
valve from your dealer.
For propane/LP connections only, the installer must supply an external regulator. The external
regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between
11 and 13 inches of water. If you do not reduce incoming gas pressure, burner system regulator
damage could occur. Install external regulator with the vent pointing down as shown in Figure 14.
Pointing the vent down protects it from freezing rain or sleet.
WARNING
A qualified installer or service person
must connect appliance to gas supply.
Follow all local codes.
CAUTION
For propane/LP units, never connect
fireplace directly to the propane/LP
supply. This burner system requires an
external regulator (not supplied). Install
the external regulator between the burn-
er system and propane/LP supply.
CAUTION
Use only new black iron or steel pipe. In-
ternally tinned copper or copper tubing
can be used per National Fuel Code, sec-
tion 2.6.3, providing gas meets hydrogen
sulfide limits, and where permitted by
local codes. Gas piping system must be
sized to provide minimum inlet pressure
(listed on data plate) at the maximum
flow rate (BTU/hr). Undue pressure loss
will occur if the pipe is too small.
WARNING
External regulators may be necessary
for natural gas. One- or two-pound sys-
tems will damage this appliance and
may cause fire hazard.
&0
EXTERNALREGULATOR
External
Regulator
100 gal.
(min) Pro-
pane/LP
Supply
Tank
Vent
Pointing
Down
FP1977
Figure 14 -
External Regulator with Vent Pointing Down (Pro-
pane/LP Only)
When using copper or flex connectors use only fittings approved for gas connections. The
gas control inlet is 3/8” NPT.

62D4037 15
BBV, SBV Series Natural Vent Gas Fireplaces
FIREPLACE INSTALLATION
WARNING
Only persons licensed to work with gas
piping may make the necessary gas
connections to this appliance.
CAUTION
A manual shut-off valve must be installed
upstream of the appliance. Union tee and
plugged 1/8” NPT pressure tapping point
should be installed upstream of the ap-
pliance. Figure 17
NOTE: The gas line connection may be made using 1/2” rigid tubing or an approved flex con-
nector. Since some municipalities have additional local codes, it is always best to consult your
local authorities and the current edition of the National Fuel Gas Code ANSI Z223.1/NFPA 54. In
Canada CSA-B149 (1 or 2) Installation Code.
A listed manual shut-off valve must be installed upstream of the appliance. Union tee and plugged 1/8”
NPT pressure tapping point should be installed upstream of the appliance. Figure 15
IMPORTANT: Install main gas valve (equipment shut-off valve) in an accessible locations. The main
gas valve is for turning on or shutting off the gas to the fireplace.
Check your building codes for any special requirements for
locating equipment shut-off valve to fireplaces.
Apply pipe joint sealant lightly to male threads. This will pre-
vent excess sealant form going into pipe. Excess sealant in
pipe could result in clogged burner system valves.
We recommend that you install a sediment trap/drip leg in
supply line as shown in Figure 15. Locate sediment trap/drip
leg where it is within reach for cleaning. Install in piping system between fuel supply and burner system.
Locate sediment trap/drip leg where trapped matter is not likely to freeze. A sediment trap traps mois-
ture and contaminants. This keeps them from going into the burner system gas controls. If sediment
trap/drip leg is not installed or is installed wrong, burner system may not run properly.
CAUTION
Use pipe joint sealant that is resistant to
liquid petroleum (LP) gas.
m
u
m
i
n
i
M
"
3
&0
GASCONNECTION
Approved Flexible
Gas LIne
UL/CSA Design-Certified
Equipment Shut-off Valve
with 1/8” NPT Tap*
Tee Joint
Pipe Nipple
Cap
Natural Gas
From Gas Meter
(5” w.c. to 10.5” w.c. Pressure)
Propane/LP
From External Regulator
(11” w.c. to 13” w.c. Pressure)
Sediment Trap/Drip Leg
Figure 15 -
Gas Connection
FP1978

62D4037
16
BBV, SBV Series Natural Vent Gas Fireplaces CHECKING GAS PRESSURE
1. Check gas type. The gas supply must be the same as stated on the appliance’s rating decal. If
the gas supply is different from the fireplace, STOP! Do not install the appliance. Contact your
dealer immediately.
2. To ease installation, a 30” (762 mm) flex line with manual shut-off valve has been provided with
this appliance. Install and attach 1/2” gas line onto shut-off valve.
3. After completing gas line connection, purge air from gas line and test all gas joints from the gas
meter to the fireplace for leaks. Use a solution of 50/50 water and soap or a gas sniffer.
4. To adjust flame height, turn HI/LO knob to HI to get maximum pressure to burner. Turn HI/LO
knob to LO to get minimum pressure.
5. To check gas pressures at valve, turn captured screw counterclockwise 2 or 3 turns and then
place tubing to pressure gauge over test point. Turn unit to high. Figure 16. After taking pressure
reading, be sure and turn captured screw clockwise firmly to reseal. Do not over torque. Check
test points for gas leaks.
WARNING
Do not use open flame to check for gas
leaks.
&0
-ILLIVOLTGASVALVE
Pressure
Test “IN”
Pressure Test
“OUT”
HI/LO Knob
Pilot Adjustment Screw
FP1979
Figure 16 -
Gas Pressure Check at Gas Valve

62D4037 17
BBV, SBV Series Natural Vent Gas Fireplaces
ELECTRICAL INSTALLATION
Verify proper operation after servicing.
REMOTE WALL MOUNTED SWITCH
A remote wall switch and up to fifteen (15) feet of 18 Ga. wire may be used with this appliance. Attach
the wall switch in a junction box at the desired location on the wall. Figure 16. Do not extend beyond
the wall switch wire length provided.
NOTE: Extended lengths of wire may cause the fireplace not to function properly. Longer length
of wire is permitted if the wire is made out of larger gauge (diameter) wire. Always check with
local codes.
WARNING
Electrical connections should only be performed by a qualified, licensed
electrician. Main power must be off when connecting to main electrical
power supply or performing service. All wiring shall be in compliance
with all local, city and state codes. The appliance, when installed, just be
electrically grounded in accordance with local codes, or in the absence
of local codes, with the National Electrical Code ANSI/NFPA 70 (latest edi-
tion) and Canadian Electrical Code, CSA C22.1.
CAUTION
Label all wires before disconnecting
when servicing controls. Wiring errors
can cause improper and dangerous op-
eration.
ON
OFF
OPTIONAL REMOTE
WALL SWITCH
ON
OFF
OPTIONAL REMOTE
WALL SWITCH
PILOT HI
O
L
NO
FF
O
TH
TP
TH/TP
ON
OFF
SPILL
SWITCH
RS
&0
""63"6WIRING

WARNING
Do not connect wall switch to AC
(110 V) circuit.
ELECTRICAL WIRING
Figure 16 -
Wall Switch Wiring Diagram

62D4037
18
BBV, SBV Series Natural Vent Gas Fireplaces ELECTRICAL INSTALLATION
ELECTRONIC PILOT IGNITION WIRING
WARNING
Do not connect 110-120V AC to the Re-
mote Wall Switch. The appliance will
malfunction or destroyed.
&0
ELECTRONICIGNITIONWIRING

Figure 17 -
Electronic Ignition System Wiring Diagram FP2027
REMOTE WALL SWITCH
Position the wall switch. Do not extend beyond the 15’ of wire.
OPTIONAL DC REMOTE SYSTEMS
These instructions replace the section entitled Hearth Mount in the Millivolt hand held remote in-
structions supplied with the remote.
1. Plug in remote connector wire to remote receiver.
2. Connect the wire terminal from the remote receiver. This replaces the 15’ wall switch connection
to the switch. Figure 17
3. Mount remote control receiver at junction box (for your wall switch).

62D4037 19
BBV, SBV Series Natural Vent Gas Fireplaces
FINAL INSTALLATION
ROCK WOOL PLACEMENT
1. Place rock wool on burner to provide glowing
embers. For best results, pull the rock wool
apart into pieces the size of a nickel or dime.
2. Distribute one layer of rock wool to cover the
entire burner. Figure 18
3. Place the logs on the burner. Refer to Log Place-
ment Section.
If the flame is blue and only in the center, turn off unit
and allow to cool. After unit cools, remove logs. If the
back holes are clear, add more rock wool to the cen-
ter of the burner. Replace logs and check flame again.
Save left over rock wool to refresh when cleaning later.
Too much rock wool can disturb the flame and cause
sooting on the glass or logs.
&0
ROCKWOOL

Cover with
Rock Wool
Burner
FP2028
Figure 18 -
Place Rock Wool on Burner
WARNING
Do not use the entire bag of rock wool
to cover the burner. This could cause
the flame to burn poorly and may lead
to sooting.
LOG PLACEMENT
Figure 19
1. Place rear log (#1) on grate assembly. Log should rest
firmly on the two log mounting pins on the horizontal
bars.
2. Place bottom left log (#2) on grate. Rest the back side
of the log in the flat area of the rear log.
3. Place bottom right log (#3) on grate. Rest the back
side of the log in the flat area of the rear log.
4. Place the top log (#4) on the rear log. Nest the forked
end of the top left log into the fork of the rear log. Rest
the narrow end of the top on the vertical grate bar.
LAVA ROCK AND EMBER PLACEMENT
Sprinkle lava rock on the floor of the inner combustion
chamber. Evenly distribute the rock. Do not pile the lava
rock up in front of grate. Do not place lava rock on the
burner. If desired, purchase optional embers to decorate
the floor of the fireplace.
,'
""V3"6LOGPLACEMENT

Top Log
(#4)
Right Log
(#3)
Flat
Areas
Rear
Log (#1)
Right Vertical
Grate Bar
Center Vertical
Grate Bar
Left Vertical
Grate Bar
Log
Mounting
Pins
Left Log
(#2)
LG557
Figure 19 -
Log Placement
WARNING
Do not sprinkle the lava rock or ember
chunks on top of the burner. This may
cause potential sooting, glass breakage
and a fire hazard.

62D4037
20
BBV, SBV Series Natural Vent Gas Fireplaces OPERATING INSTRUCTIONS
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING
If you do not follow these instructions
exactly, a fire or explosion may result
causing property damage, personal in-
jury or loss of life.
A. This appliance is equipped with a pilot which must be lit with an ignitor while following these instructions exactly.
B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the floor because
some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS:
• Turn off all gas to the appliance.
• Open windows.
• Do not attempt to light any appliance.
• Do not touch any electric switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
C. Use only your hand to push in, or turn the gas control knob. Never use tools. If the knob will not push in or turn
by hand, don’t try to repair it. Call a qualified service technician. Force or attempted repair may result in a fire or
explosion.
D. Do not use this appliance if any part of it has been under water. Immediately call a qualified service technician
to inspect the appliance and to replace any pat of the control system and any gas control that has been under
water.
LIGHTING PILOT FOR THE FIRST TIME
INITIAL LIGHTING
Purge air from the supply line as follows:
• Open main shut-off valve.
• Unscrew main pressure test point.
• Leave inlet test screw open until gas comes in.
• When gas is flowing, tighten inlet screw immediately.
LEAK TESTING
1. Follow the pipe from the gas supply line connection to the gas valve. Check connection for leaks with soap and
water mixture.
2. Next check for gas leaks at the burner with soap and water mixture.
3. Check the pilot for gas leaks with soap and water mixture.
WARNING
Never use an open flame to check for
gas leaks.