Superior Indoor Fireplace sddv 35 40 User Manual

INSTALLATION  
INSTRUCTIONS  
RETAIN THESE INSTRUCTIONS  
FOR FUTURE REFERENCE  
DIRECT VENT  
This appliance may be installed as an OEM in-  
stallation in a manufactured home (USA only) or  
Manufactured Home and must be installed in ac-  
cordance with the manufacturer's instructions and  
the manufactured home construction and safety  
standard, Title 24 CPF, Part 3280 or Standard for  
InstallationinManufacturedHomes,CAN/CSAZ240  
MH. This appliance is only for use with the type(s)  
of gas indicated on the rating plate. A conversion  
kit is supplied with the appliance.  
SDDV-35/40 SERIES  
DIRECT VENT GAS FIREPLACE HEATERS  
P/N 700,041M REV. B 11/2006  
MODELS  
Millivolt Models  
Electronic Models  
SDDV-35NM  
SDDV-35PM  
SDDV-40NM  
SDDV-40PM  
SDDV-35NE  
SDDV-40NE  
In the Commonwealth of Massachusetts:  
Installation must be performed by a licensed plumber or  
gas fitter;  
• See Table of Contents for location of additional Com-  
monwealth of Massachusetts requirements.  
A French manual is available upon request. Order P/N 700,041CF  
Ce manuel d’installation est disponible en francais, simplement en  
faire la demande. Numéro de la pièce 700,041CF.  
WARNING:IFTHEINFORMATIONINTHISMANUAL  
IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLO-  
SIONMAYRESULTCAUSINGPROPERTYDAMAGE,  
PERSONAL INJURY OR LOSS OF LIFE.  
AVERTISSEMENT: ASSUREZ-VOUS DE BIEN  
SUIVRE LES INSTRUCTIONS DONNÉ DANS CETTE  
NOTICE POUR RÉDUIRE AU MINIMUM LE RISQUE  
D'INCENDIE OU POUR ÉVITER TOUT DOMMAGE  
MATÉRIEL, TOUTE BLESSURE OU LA MORT.  
FOR YOUR SAFETY: Do not store or use gasoline  
or other flammables or liquids in the vicinity of  
this or any other appliance.  
POUR VOTRE SÉCURITÉ: Ne pas entreposer ni  
utiliser d'essence ni d'autre vapeurs ou liquides  
inflammables dans le voisinage de cet appareil ou  
de tout autre appareil.  
FOR YOUR SAFETY: What to do if you smell gas:  
• DO NOT light any appliance.  
POUR VOTRE SÉCURITÉ: Que faire si vous sentez  
une odeur de gaz:  
• DO NOT touch any electrical switches.  
• Do not use any phone in your building.  
• Immediately call your gas supplier from a  
neighbor’s phone. Follow your gas suppliers  
instructions.  
• Ne pas tenter d'allumer d'appareil.  
• Ne touchez à aucun interrupteur. Ne pas vous  
servir des téléphones se trouvant dans le bati-  
ment où vous vous trouvez.  
• Evacuez la piéce, le bâtiment ou la zone.  
• Appelez immédiatement votre fournisseur de  
gaz depuis un voisin. Suivez les instructions du  
fournisseur.  
• Si vous ne pouvez rejoindre le fournisseur de  
gaz, appelez le service dos incendies.  
• If your gas supplier cannot be reached, call  
the fire department.  
Installation and service must be performed by  
a qualified installer, service agency or the gas  
supplier.  
L'installation et service doit être exécuté par un  
qualifié installeur, agence de service ou le fournis-  
seur de gaz.  
OTL Report No. 116-F-05-5  
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Input (BTU) Manually-Modulated Gas  
Valves (millivolt models)  
Manifold Gas Supply Pressure  
(millivolt models)  
Burner Orifice Sizes  
Elevation 0-4500 feet ( 0-1372 meters)  
NATURAL GAS  
Fuel #  
Low  
High  
Natural  
Propane  
Model  
Series  
Gas  
Gas  
Models  
Input Rate (BTU / HR)  
Natural (Lo) 2.2" WC  
Gas  
(Hi) 3.5" WC  
(.87 kPa)  
drill size  
(inches)  
drill size (inches)  
(.55 kPa)  
27,000 high  
21,000 low  
SDDV-35NM  
(Lo) 6.3" WC (Hi) 10.0" WC  
(1.57 kPa) (2.49 kPa)  
#40 (.098")  
69L96 •  
#53 (.0595")  
39L10 •  
*
*
Propane  
SDDV-35  
SDDV-40  
30,000 high  
23,500 low  
SDDV-40NM  
Table 5  
#36 (.1065")  
18L40 •  
#52 (.0635")  
*
*
LB-55874D •  
Table 1  
* Standard size installed at factory  
• Part /Cat. Number  
Manifold Gas Supply Pressure  
(electronic models)  
Input (BTU) Manually-Modulated Gas  
Valves (millivolt models)  
Table 7  
Fuel #  
Max. Manifold Pressure  
(Hi) 3.5" WC (.87 kPa)  
(Hi) 10.0" WC (2.49 kPa)  
* PROPANE GAS  
Natural Gas  
Propane  
Gas Valve Diagrams  
Models  
Input Rate (BTU / HR)  
27,000 high  
20,700 low  
See Figure 1 for Millivolt models and Figure 2  
For Electronic Models.  
Table 6  
SDDV-35PM  
30,000 high  
23,500 low  
Test gauge connections are provided on the  
front of the millivolt gas control valve, identi-  
fied IN for the inlet and OUT for the manifold  
side. A 1/8" NPT Test gauge connection  
is provided at the inlet and outlet side of  
the electronic gas control valve.  
SDDV-40PM  
SIT Millivolt Gas Valve  
* If field converted - see Pages 34-36  
Table 2  
HI/LO Variable  
Flame Height  
Adjustment  
Inlet Pressure Tap  
Manifold Pressure Tap  
Electronic Models  
O U T I N  
Electronic models have a fixed rate gas valve.  
Input of electronic models is shown in Table  
These appliances must be isolated from the  
gas supply piping system (by closing their  
individual manual shut-off valve) during any  
pressure testing of the gas supply piping  
systemattestpressuresequaltoorlessthan  
1/2 psig (3.5 kPa).  
I
H
3.  
O
F
P
I
L
O
L
O
W
T
O
N
Electronic Models with Fixed Rate Gas Valve  
Natural and *Propane Gas  
P
I
L
T
Model Series  
SDDV-35  
Input Rate (BTU / HR)  
27,000  
Main Gas  
Control Knob  
OFF/PILOT/ON  
Pilot Adjustment  
Screw  
These appliances and their individual shut-off  
valves must be disconnected from the gas  
supply piping system during any pressure  
testing of that system at pressures greater  
than 1/2 psig (3.5 kPa).  
Figure 1  
SDDV-40  
30,000  
Table 3  
* if field converted  
Honeywell Electronic Gas Valve  
Gas Pressure - All Models  
Manifold Pressure  
Port  
ON / OFF Switch  
Inlet  
Orifice Sizes - Sea Level to High Altitude  
(All Models)  
Tables 4, 5 and 6 show the appliances' gas  
pressure requirements:  
Pressure  
These appliances are tested and approved for  
installation at elevations of 0-4500 feet (0-1372  
meters)abovesealevelusingthestandardburner  
orifice sizes (marked with an "*" in Table 7). For  
elevations above 4500 feet, contact your gas  
supplier or qualified service technician . Install  
the appliance according to the regulations of  
the local authorities having jurisdiction and, in  
the USA, the National Fuel Gas Code NFPA 54  
/ ANSI Z223.1 - latest edition or, in Canada, the  
CAN1-B149.1 and .2 codes - latest edition.  
Port  
Inlet Gas Supply Pressure  
(all models)  
Fuel #  
Minimum  
Maximum  
5.0" WC  
(1.24 kPa)  
10.5" WC  
(2.61 kPa)  
Natural Gas  
Electronic Gas  
Control Valve  
Figure 2  
11.0" WC  
(2.74 kPa)  
13.0" WC  
(3.23 kPa)  
Propane  
New York City, New York (MEA)  
Table 4  
Installation of these fireplaces are approved  
for installation in New York City in the US state  
of New York.  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
3
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Note: The following requirements reference various Massachusetts  
and national codes not contained in this document.  
Inspection  
The state or local gas inspector of the side wall horizontally vented gas  
fueledequipmentshallnotapprovetheinstallationunless,uponinspection,  
the inspector observes carbon monoxide detectors and signage installed  
in accordance with the provisions of 248 CMR 5.08(2)(a)1 through 4.  
Requirements for the Commonwealth of Massachusetts  
Forallsidewallhorizontallyventedgasfueledequipmentinstalledinevery  
dwelling, building or structure used in whole or in part for residential  
purposes, including those owned or operated by the Commonwealth and  
where the side wall exhaust vent termination is less than seven (7) feet  
above finished grade in the area of the venting, including but not limited  
to decks and porches, the following requirements shall be satisfied:  
Exemptions  
The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:  
• The equipment listed in Chapter 10 entitled “Equipment Not Required  
To Be Vented” in the most current edition of NFPA 54 as adopted by  
the Board; and  
Installation Of Carbon Monoxide Detectors  
• Product Approved side wall horizontally vented gas fueled equipment  
installed in a room or structure separate from the dwelling, building  
or structure used in whole or in part for residential purposes.  
At the time of installation of the side wall horizontal vented gas fueled  
equipment, the installing plumber or gasfitter shall observe that a hard  
wired carbon monoxide detector with an alarm and battery back-up is  
installed on the floor level where the gas equipment is to be installed.  
In addition, the installing plumber or gasfitter shall observe that a bat-  
tery operated or hard wired carbon monoxide detector with an alarm is  
installed on each additional level of the dwelling, building or structure  
served by the side wall horizontal vented gas fueled equipment. It shall  
be the responsibility of the property owner to secure the services of  
qualified licensed professionals for the installation of hard wired carbon  
monoxide detectors.  
MANUFACTURER REQUIREMENTS  
Gas Equipment Venting System Provided  
When the manufacturer of Product Approved side wall horizontally  
vented gas equipment provides a venting system design or venting sys-  
tem components with the equipment, the instructions provided by the  
manufacturer for installation of the equipment and the venting system  
shall include:  
In the event that the side wall horizontally vented gas fueled equipment  
is installed in a crawl space or an attic, the hard wired carbon monoxide  
detector with alarm and battery back-up may be installed on the next  
adjacent floor level.  
• Detailed instructions for the installation of the venting system design  
or the venting system components; and  
• A complete parts list for the venting system design or venting sys-  
tem.  
In the event that the requirements of this subdivision can not be met at  
the time of completion of installation, the owner shall have a period of  
thirty (30) days to comply with the above requirements; provided, how-  
ever, that during said thirty (30) day period, a battery operated carbon  
monoxide detector with an alarm shall be installed.  
Gas Equipment Venting System NOT Provided  
When the manufacturer of a Product Approved side wall horizontally  
vented gas fueled equipment does not provide the parts for venting the  
fluegases, butidentifiesspecialventingsystems”, thefollowingrequire-  
ments shall be satisfied by the manufacturer:  
Approved Carbon Monoxide Detectors  
Each carbon monoxide detector as required in accordance with the  
above provisions shall comply with NFPA 720 and be ANSI/UL 2034  
listed and IAS certified.  
• Thereferencedspecialventingsysteminstructionsshallbeincluded  
with the appliance or equipment installation instructions; and  
• The “special venting systems” shall be Product Approved by the  
Board, and the instructions for that system shall include a parts list  
and detailed installation instructions.  
Signage  
A metal or plastic identification plate shall be permanently mounted to  
the exterior of the building at a minimum height of eight (8) feet above  
grade directly in line with the exhaust vent terminal for the horizontally  
vented gas fueled heating appliance or equipment. The sign shall read, in  
print size no less than one-half (1/2) inch in size, “GAS VENT DIRECTLY  
BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS.”  
A copy of all installation instructions for all Product Approved side wall  
horizontally vented gas fueled equipment, all venting instructions, all  
parts lists for venting instructions, and/or all venting design instructions  
shall remain with the appliance or equipment at the completion of the  
installation.  
• Installation and repair must be done by a plumber or gas fitter licensed  
in the Commonwealth of Massachusetts.  
• The flexible gas line connector used shall not exceed 36 inches (92  
centimeters) in length.  
• The individual manual shut-off must be a T-handle type valve.  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
4
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SAFETY & WARNIING INFORMATION  
WARNING  
WARNING  
WARNING  
Children and adults should be  
alerted to the hazards of high  
surfacetemperatures.Use  
caution around the appliance  
to avoid burns or clothing igni-  
tion. Young children should be  
carefully supervised when they  
are in the same room as the  
appliance.  
Do not use these appliances if  
any part has been under water.  
Immediately call a qualified,  
professional service technician  
to inspect the appliances and to  
replace any parts of the control  
system and any gas controls  
which have been under water.  
If the information in this  
manual is not follwed  
exactly, a fire or explosion  
may result causing prop-  
erty damage, personal  
injury or loss of life.  
WARNING  
Note: An Optional Screen Door or  
ScreenPanel fortheglassisavail-  
able(seeHomeownersManualfor  
ordering information).  
WARNING  
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 certified  
kit is used.  
Failuretocomplywiththeinstal-  
lationandoperatinginstructions  
provided in this document will  
result in an improperly installed  
andoperatingappliance,voiding  
its warranty. Any change to this  
appliance and/or its operating  
controlsisdangerous. Improper  
installation or use of this appli-  
ance can cause serious injury or  
deathfromre,burns,explosion  
or carbon monoxide poisoning.  
AVERTISSEMENT  
Surveiller les enfants. Garder les  
vêtements, lesmeubles, l'essence  
ouautresliquidesà vapeurinflam-  
mables lin de l'appareil.  
WARNING  
These fireplaces are vented heat-  
ers. Do not burn wood or other  
material in these appliances.  
WARNING  
Do not place clothing or other  
flammable materials on or near  
this appliance.  
AVERTISSEMENT  
WARNING  
Cet appareil doit être utilisé  
uniquement avec les types de  
gaz indiqués sur la plaque sig-  
nalétique. Ne pas l'utiliser avec  
d'autres gaz sauf si un kit de con-  
version certifié est installé.  
Do not attempt to alter or modify  
the construction of the appli-  
ance or its components. Any  
modification or alteration may  
void the warranty, certification  
and listings of this unit.  
AVERTISSEMENT  
Pour utilisation uniquement avec  
les portes en verre certifiêes avec  
l'appareil.  
IMPORTANT  
AVERTISSEMENT  
It is imperative that the control  
compartment, burners and  
circulating air passage ways  
of the appliance be kept clean.  
SeeMaintenanceinstructionsin  
Homeowner's Manual.  
WARNING  
Ne pas se servir de cet appar-  
eil s'il a été plongé dans l'eau,  
complètement ou en partie.  
Appeler un technicien qualifié  
pour inspecter l'appareil et rem-  
placer toute partie du système de  
contrôle et toute commande qui  
ont été plongés dans l'lau.  
Carbon monoxide poisoning:  
early signs of carbon monoxide  
poisoning are similar to the flu  
withheadaches,dizzinessand/or  
nausea. If you have these signs,  
obtainfreshairimmediately.Turn  
offthegassupplytotheappliance  
and have it serviced by a quali-  
fied professional, as it may not  
be operating correctly.  
WARNING  
This appliance may only be fitted  
with doors certified for use with  
the appliance.  
IMPORTANT  
These appliances must not be  
connected to a chimney or flue  
serving a separate solid fuel  
burning appliance.  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
5
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COLD CLIMATE INSULATION  
For cold climate installations, seal all cracks  
around the appliance with noncombustible  
material and wherever cold air could enter  
the room. It is especially important to insulate  
outside chase cavity between studs and under  
floor on which the appliance rests, if floor is  
above ground level. Gas line holes and other  
openings should be caulked or stuffed with  
unfaced fiberglass insulation. If the fireplace  
is being installed on a cement slab, in cold  
climates, a sheet of plywood or other raised  
platform can be placed underneath to prevent  
conductingcoldupintotheroom.Italsohelpsto  
sheetrockinsidesurfacesandtapeformaximum  
air tightness and caulk firestops.  
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APPLICATION  
TOP VENT  
RECESSED  
INSTALLATION  
TOP VENT  
APPLICATION  
LOCATION  
Inselectingthelocation,theaestheticandfunc-  
tionaluseoftheapplianceareprimaryconcerns.  
However, vent system routing to the exterior  
andaccesstothefuelsupplyarealsoimportant.  
Consideration should be given to traffic ways,  
furniture,draperies,etc.,duetoelevatedsurface  
temperatures (Figure 3). The location should  
also be free of electrical, plumbing or other  
heating/air conditioning ducting.  
VERTICAL VENT  
(Rear Vent  
Application)  
HORIZONTAL VENT  
(Rear Vent Application  
without a chase)  
These direct vent appliances are uniquely  
suited for installations requiring a utility shelf  
positioned directly above the fireplace. Utility  
shelveslikethesearecommonlyusedforlocat-  
ing television sets and decorative plants. Be  
awarethatthisisaheatproducingappliance.  
Objects placed above the unit are exposed to  
elevated temperatures.  
HORIZONTAL VENT  
(Rear Vent Application  
With a chase)  
VERTICAL VENT  
(Top Vent  
Application)  
HORIZONTAL VENT  
(Top Vent  
To provide for the lowest possible shelf surface  
use the alternate rear vent outlet with attached  
ventingroutedinawaytominimizeobstructions  
to the use of the space above the appliance. Do  
not insulate the space between the appliance  
and the area above it. See Figure 8. The mini-  
mum height from the base of the appliance to  
the underside of combustible materials used to  
construct a utility shelf in this fashion is shown  
in the Table in Figure 8.  
Application)  
Figure 3 - Typical Locations  
The appliance should be mounted on a fully  
supported base extending the full width and  
depth of the unit. The appliance may be located  
onornearconventionalconstructionmaterials.  
However, if installed on combustible materials,  
such as carpeting, vinyl tile, etc., a metal or  
woodbarriercoveringtheentirebottomsurface  
must be used.  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
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Horizontal Vent Termination Clearances  
MANUFACTURED HOME  
REQUIREMENTS  
VENT TERMINATION CLEARANCES  
The horizontal vent termination must have  
a minimum of 3" (76 mm) clearance to any  
overhead combustible projection of 2-1/2" (64  
mm) or less. See Figure 5. For projections  
exceeding 2-1/2" (64 mm), see Figure 6. For  
additional vent location restrictions refer to  
Figure 6 on Page 8.  
Theseinstructionsshouldbeusedasaguide-  
line and do not supersede local codes in any  
way. Install vent according to local codes,  
these instructions, the current National Fuel  
Gas Code (ANSI-Z223.1) in the USA or the  
current standards of CAN/CGA-B149.1 and  
-B149.2 in Canada.  
This appliance may be installed in an after-  
market permanently located, manufactured  
home (USA only) or mobile home, where not  
prohibited by local codes.  
Cet appareil peut être installé dans un maison  
préfabriquée (É.-U. seulement) ou mobile déjà  
installée à demeure si les réglements locaux  
le permettent.  
Terminate multiple vent terminations according to  
the installation codes listed above.  
Horizontal Vent Termination Clearances  
Terminate single vent caps relative to building  
components according to Figure 4.  
Combustible Projection  
2-1/2 inches or less in length  
Combustible Projection greater  
than 2-1/2 inches in length  
Manufactured Home installations must be  
installed in accordance with these instructions  
and the following standards / codes:  
• Manufactured Home Construction and  
Safety Standard Title 24 CFR, Part 3280, or  
the current Standard for Fire Safety Criteria  
for Manufactured Home Installations, Sites  
and Communities ANSI / NFPA 501A in the  
USA, and CAN / CSA Z240 MH Mobile Home  
Standard in Canada  
Vertical Vent Termination Clearances  
Ventilated  
Soffit  
(Gas Vent Rule)  
Unventilated  
Soffit  
TERMINATION HEIGHTS FOR VENTS ABOVE  
FLAT OR SLOPED ROOFS  
Horizontal Overhang  
3"  
18"  
12"  
(76 mm)  
(457 mm)  
(305 mm)  
2 FT  
MIN.  
Vertical  
Wall  
2 FT MIN.  
Lowest  
Discharge  
Opening  
Note - See Figure 33 on  
Page 20 for the exterior  
wall recess allowances  
of the square horizontal  
termination.  
• (when applicable) The American National  
StandardforManufacturedHomes(NCSBCS  
/ ANSI A225.1 - latest edition).  
Vent  
Termination  
H*  
Storm Collar  
Flashing  
Termination Kit  
X
12  
Side Elevation View  
Roof Pitch is X/12  
Figure 5  
CAUTIONS  
1 inch (25.4 mm) Minimum  
Clearance to Combustibles  
Ensure that the cross members  
are not cut or weakened during  
installation.Thestructuralinteg-  
rity of the manufactured home  
floor,wall,andceiling/roofmust  
be maintained.  
Concentric  
Vent Pipe  
*H = MINIMUM HEIGHT FROM ROOF TO  
LOWEST DISCHARGE OPENING OF VENT  
The vent / air intake termination clearances  
above the high side of an angled roof is as  
shown in the following chart:  
Termination Heights For Vents  
Above Flat Or Sloped Roofs  
Thisappliancemustbegrounded  
to the chassis of the manufac-  
tured home in accordance with  
local codes or in the absence of  
local codes, with the National  
Electrical Code ANSI / NFPA 70  
- latest edition or the Canadian  
ElectricalCodeCSAC22.1-latest  
edition.  
Ref. NFPA 54 / ANSI Z223.1, 7.6  
Roof Pitch  
Flat to 6/12  
* Feet  
1.0  
*Meters  
0.3  
6/12 to 7/12  
1.25  
1.5  
0.38  
0.46  
0.61  
0.76  
0.99  
1.22  
1.52  
1.83  
2.13  
2.29  
2.44  
7/12 to 8/12  
8/12 to 9/12  
2.0  
9/12 to 10/12  
10/12 to 11/12  
11/12 to 12/12  
12/12 to 14/12  
14/12 to 16/12  
16/12 to 18/12  
18/12 to 20/12  
20/12 to 21/12  
2.5  
3.25  
4.0  
5.0  
6.0  
7.0  
7.5  
8.0  
Figure 4  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
7
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EXTERIOR HORIZONTAL VENT TERMINATION CLEARANCE REQUIREMENTS  
See Item D in the Text Below.  
Center Line  
Exterior Wall  
Inside  
Corner Detail  
of Termination  
*18”  
Horizontal  
G
Termination  
18”  
V
Ventilated Soffit  
A
Inside Corner  
= 9" in U.S.  
= 12" in Canada  
A
DETAIL D  
H
3 ft.  
X
B
B
B
E
D
C
C
A
A
V
V
Fixed  
Operable  
Window  
V
L
V
Closed  
3 ft.  
Window  
V
F
J
M
V
C
C
B
B
V
I
A
X
= Air Supply Inlet  
= Vent Terminal  
= Area where Terminal is NOT permitted  
V
Minimum Clearances  
Canadian Installation *  
US Installation **  
A = Clearance above grade, veranda, porch, deck 12 inches (30 cm) *  
or balcony.  
12 inches (30 cm) **  
B = Clearance to window or door that may be 6 in. (15.2 cm) for appliances < 10,000 BTU/hr (3kW),  
6 in. (15.2 cm) for appliances < 10,000 BTU/hr (3kW),  
opened.  
12 in. (30 cm) for appliances > 10,000 BTU/hr (3kW) and < 9 in. (23 cm) for appliances > 10,000 BTU/hr (3kW) and <  
100,000 BTU/hr (30kW), 36 inches (91 cm) for appliances 50,000 BTU/hr (15kW), 12 inches (30 cm) for appliances  
> 100,000 BTU/hr (30kW)*  
> 50,000 BTU/hr (15kW)*  
C = Clearance to permanently closed window  
12 inches (305 mm) recommended to prevent window 9 inches (229 mm) recommended to prevent window  
condensation  
condensation  
D = Vertical clearance to ventilated soffit located 18 inches (458 mm)  
abovetheterminalwithinahorizontaldistanceof18  
18 inches (458 mm)  
in. (458 mm) from the center line of the terminal  
E = Clearance to unventilated soffit  
F = Clearance to outside corner  
G = Clearance to inside corner  
12 inches (30 cm)  
5 inches (12.7 cm)  
6 in. (15 cm)  
12 inches (30 cm)  
5 inches (12.7 cm)  
6 in. (15 cm)  
H = Clearance to each inside of center line extended 3 feet (91 cm) within a height of 15 feet above the meter / 3 feet (91 cm) within a height of 15 feet above the meter  
above meter / regulator assembly  
regulator assembly *  
/ regulator assembly **  
I = Clearance to service regulator vent outlet  
3 feet (91 cm) *  
3 feet (91 cm) **  
J = Clearance to non-mechanical air supply inlet 6 in. (15.2 cm) for appliances < 10,000 BTU/hr (3kW), 12 6 in. (15.2 cm) for appliances < 10,000 BTU/hr (3kW), 9  
to building or the combustion air inlet to any other in. (30 cm) for appliances > 10,000 BTU/hr (3kW) and < in. (23 cm) for appliances > 10,000 BTU/hr (3kW) and <  
appliance  
100,000 BTU/hr (30kW), 36 inches (91 cm) for appliances 50,000 BTU/hr (15kW), 12 inches (30 cm) for appliances  
> 100,000 BTU/hr (30kW)*  
> 50,000 BTU/hr (15kW)*  
K = Clearance to mechanical air supply inlet  
6 feet (1.8 meters) *  
3 feet (91 cm) above, if within 10 feet (3 m) horizon-  
tally**  
L = Clearance above paved sidewalk or paved 7 feet (2.13 m) ‡  
driveway located on public property  
7 feet (2.13 m) ‡  
M = Clearance under veranda, porch, deck or 12 in. (30 cm) * ‡  
balcony  
12 in. (30 cm) ** ‡  
* In accordance with the current CSA-B149.1 National Gas and B149.2 Propane Installation Code - Latest Editions.  
** In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Codes - Latest Edition.  
‡ A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings.  
*‡ Only permitted if veranda, porch, deck or balcony is fully open on a minimum 2 sides beneath the floor.  
Figure 6  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
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MINIMUM CLEARANCES TO COMBUSTIBLES  
Appliance and Vent Clearances  
Hearth Extension - A hearth extension is not required with this appliance. If a hearth extension is  
used,donotblockthelowercontrolcompartmentdoor.Anyhearthextensionusedisforappearance  
only and does not have to conform to standard hearth extension installation requirements.  
Theapplianceisapprovedwithzeroclearanceto  
combustible materials on all sides (as detailed  
in Table 8), with the following exception: When  
the unit is installed with one side flush with a  
wall, the wall on the other side of the unit must  
not extend beyond the front edge of the unit.  
In addition, when the unit is recessed, the side  
walls surrounding the unit must not extend  
beyond the front edge of the unit. See Figure  
3 on Page 6.  
Wall Finishes / Surrounds / Mantels  
Note: Combustible wall finish materials and/or surround materials must not be allowed to encroach  
the area defined by the appliance front face (black sheet metal). Never allow combustible materials  
to be positioned in front of or overlapping the appliance front face. See Figure 56 on Page 31.  
Non-combustible materials, such as surrounds and other appliance trim, may be installed on the  
appliance front face with these exceptions: they must not cover any portion of the removable glass  
panel or louvers.  
MINIMUM CLEARANCES Inches (millimeters)  
Vertical installation clearances to combustible mantels vary according to the depth of the mantel.  
See Figure 7. Mantels constructed of non-combustible materials may be installed at any height  
above the appliance opening; however, do not allow anything to hang below the hood.  
Back  
1/2 (13)  
0 (0) Spacers  
Sides  
1/2 (13)  
0 (0) Spacers  
Mantel Depth  
Top Spacers  
Floor  
0 (0)  
0 (0)  
inches (millimeters)  
14 (356)  
Bottom of Appliance  
To Ceiling  
12 (305)  
10 (254)  
64 (1626)  
Vent  
3 (76) Top *  
1 (25.4) Sides & Bottom  
8 (203)  
Top of  
Appliance  
6 (152)  
4 (102)  
SERVICE CLEARANCES Feet (meters)  
Front 3 ft. (0.9 m)  
Table 8  
12 10  
8
6
4
2
(305) (254) (203) (152) (102) (51)  
*Note: 3 in. (75 mm) above any horizontal/in-  
clined vent component.  
**Note: See Page 10, Step 1 for clearance  
requirements to the nailing flange located  
at each side of the unit and any screw heads  
adjacent to it.  
Hood  
Figure 7 - Minimum Mantel Clearances  
Minimum Distance to Unprotected Side Wall  
Combustible Shelf Height - Inches (millimeters)  
Top Vent - with One 90 Degree Elbow Rear Vent - Straight Out the Back  
Model No.  
Combustible materials may project beyond the sides of the fire-  
place opening as long as they are kept within the shaded areas  
illustrated here.  
Secure Vent  
Secure Flex  
(flex elbow)  
Secure Vent  
Secure Flex  
SDDV-35  
SDDV-40  
At 14" minimum  
*53-1/2 (1359)  
*55-1/4 (1403)  
40-1/4 (1022)  
40-1/4 (1022)  
At 8-1/4" side  
side wall clearance,  
wall clearance, a  
combustible wall  
can project 12"  
a combustible wall  
can project to any  
length.  
Top View of  
Fireplace  
* Includes 3” clearance to combustibles (required above vent components)  
Do not insulate the  
space between the  
appliance and the  
area above it.  
Do not insulate the  
space between the  
appliance and the  
area above it.  
Combustible Materials  
Allowed In Shaded  
Area “Safe Zone”  
o
45  
5
(127)  
Combustible Walls  
shown in dark gray  
*Shelf Height  
12 (305)  
17 (432)  
(
see table)  
Shelf Height  
(
see table)  
Inches (millimeters)  
Shelf Above Fireplace With Top Venting  
Shelf Above Fireplace With Rear Venting  
14  
(356)  
8-1/4  
(209)  
Protected wall shown in white  
Figure 8 - Shelf Height Minimum Clearances  
Figure 9  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
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Step 4. (Page 25) Field Wiring  
a. MillivoltAppliancesTheoperatingcontrol  
switch is factory installed.  
b. Electronic Appliances – Connect 120 VAC  
electrical power to the appliance recep-  
tacle.  
Step 5. (Page 25) Install blower kit (optional  
equipment).  
Step 6. (Page 26) Make connection to gas sup-  
ply.  
Step 7. (Page 27) Checkout appliance operation.  
Step 8. (Page 28) Install the logs, volcanic stone  
and glowing embers.  
Step 9. (Page 30) Install glass door frame as-  
sembly.  
DETAILED INSTALLATION STEPS  
The appliance is shipped with all gas controls  
and components installed and pre-wired. Re-  
move the shipping carton, exposing the front  
glassdoor. Removethetopandbottomlouvered  
control panel per instructions on Page 27 (see  
Control Compartment Access / Louver Panel  
Instructions). Remove the cardboard from  
underneaththepressurereliefplates, inarea  
behindtoplouverpanel(seeFigure10). Open  
thetwolatches(locatedunderthereboxoor)  
securing the glass door. Remove the door by  
tilting it outward at the bottom and lifting it up.  
Setthedoorasideprotectingitfrominadvertent  
damage. See Figure 53 on Page 30.  
Unit Nailing Flange  
(No clearance to  
combustible  
Side  
Framing  
framing is required)  
Left Side Front Corner of Fireplace Shown  
(Right Side Requirements the Same)  
Unit Being Secured By Its Nailing Flanges  
To The Framing  
Note: The nailing flanges, combustible members  
and screw heads located in areas directly adjacent  
to the nailing flanges, are EXEMPT from the 1/2”  
clearance to combustible requirements for the  
firebox outer wrapper. Combustible framing may be  
in direct contact with the nailing flanges and may  
be located closer than 1/2” from screw heads and  
the firebox wrapper in areas adjacent to the nailing  
flanges. Frame the opening to the exact dimensions  
specified in the framing details of this manual.  
Step10.(Page30) Adjustburnertoensureproper  
flame appearance.  
Step 11. (Page 31) Install the hood.  
Pressure Relief Plates  
Step 1. FRAMING  
OVE  
REM  
OVE  
REM  
D
G
BOAR  
CARD  
D
BOAR  
CARD  
E
USIN  
BEFOR  
G
USIN  
E
BEFOR  
Figure 11  
Frame these appliances as illustrated in Figure  
13 on Page 11, unless the appliance is to be  
installed in a corner. See Figure 14 on Page  
12 for corner framing installations. All framing  
details must allow for a minimum clearance to  
combustible framing members as shown in  
Table 8 on Page 9.  
STEP 2. ROUTING GAS LINE  
Remove Cardboard Before  
Using Appliance  
Route a 1/2" (13 mm) gas line along the inside  
of the right side framing as shown in Figure  
12. Gas lines must be routed, constructed and  
made of materials that are in strict accordance  
withlocalcodesandregulations. Allappliances  
are factory-equipped with a flexible gas line  
connector and 1/2 inch shutoff valve. (See  
Step 6 on Page 26).  
See-Through Model Shown  
If the appliance is to be elevated above floor  
level, a solid continuous platform must be  
constructed.  
Figure 10  
TYPICAL INSTALLATION SEQUENCE  
Headers may be in direct contact with the  
appliance top spacers but must not be sup-  
ported by them or notched to fit around them.  
All construction above the appliance must be  
self supporting. DO NOT use the appliance for  
structural support.  
The typical sequence of installation follows,  
however, each installation is unique resulting  
in variations to those described.  
Right Side Front  
Corner of Fire-  
place Framing  
SeethePagenumbersreferencesinthefollow-  
ing steps for detailed procedures.  
Step 1. (Page 10) Construct the appliance  
framing. Position the appliance within the  
framing and secure with nailing brackets.  
Step 2. (Page 10) Route gas supply line to  
appliance location.  
Step 3. (Page 13) Install the vent system and  
exterior termination.  
Thereplaceshouldbesecuredtothesideframing  
membersusingtheunit'snailinganges-onetop  
andbottomoneachsideofthereplacefront.See  
Figure 11. Use 8d nails or their equivalent.  
3"  
6-1/2"  
(152 mm)  
(76 mm)  
Also see Figure 13.  
Left side installation is optional (see Figure 13)  
Figure 12 - ROUTE GAS LINE  
Continued on Page 12.  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
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FIREPLACE SPECIFICATIONS  
**Framing With Square Horizontal Termination SV4.5HT-2  
**Framing should be constructed  
Framing Dimensions - Inches (millimeters)  
Models  
A
B
C
C
D
E
of 2 x 4 or larger lumber.  
(rear vent)  
(top vent)  
10-1/2  
VENT FRAMING -  
TOP VENT WITH ONE  
°
(
267)  
SDDV-35 35-1/4 (895) 40-1/4 (1022) 20-7/8 (530) 23-5/8 (600) 27-1/2 (699) 46-3/4 (1188)  
SDDV-40 40-1/4 (1022) 40-1/4 (1022) 20-7/8 (530) 23-5/8 (600) 27-1/2 (699) 46-3/4 (1188)  
90 ELBOW  
VENT FRAMING -  
REAR VENT WITH  
NO ELBOWS  
Notes  
Input (BTU) - MV & Electronic  
Natural (NG) & Propane (LP) Gas  
7
(178)  
* The Steady State Efficiency numbers based on  
maximum vent configuration.  
5-1/8  
(130)  
12-1/8  
(308)  
Models  
Fuel Input Rate (BTU / HR)  
Due to Lennox' ongoing commitment to quality,  
all specifications, ratings and dimensions are  
subject to change without notice.  
High 27,000  
Low 21,000  
NG  
SDDV-35  
SDDV-40  
Unit is shipped with vent seal cap and flue cover  
plate installed on both flue outlets.  
High 27,000  
Low 20,700  
LP  
7
(178)  
5-1/8  
(130)  
High 30,000  
Low 23,500  
NG  
12-1/8  
(308)  
Vent Size  
E
B
4-1/2" Inner  
7-1/2" Outer  
High 30,000  
Low 23,500  
Co-axial DV Vent Size  
LP  
D
C
1/2  
A
A
Inches (mm)  
C is the required framing depth  
dimension when the finish material  
(drywall) thickness is 1/2 in. (13mm).  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
FRAMING  
SPACERS  
(Top and Sides  
G
Product Reference Information  
Co-Axial Direct Vent Pipe  
Collars (Top & Rear Vent)  
Flue Outlet - 4-1/2 (114),  
Cat.  
No.  
Model  
Ship.  
Wt.(lbs)  
Ship.Vol. (Cubic feet)  
H
and Rear)  
Combustion Air - 7-1/2 (190)  
H4835 SDDV-35NM 128 Lb's  
H4836 SDDV-35PM 128 Lb's  
18.3 cu. ft. - 40-1/4 x 36-7/8 x 21-7/8"  
18.3 cu. ft. - 40-1/4 x 36-7/8 x 21-7/8"  
18.3 cu. ft. - 40-1/4 x 36-7/8 x 21-7/8"  
20.9 cu. ft. - 40-1/4 x 41-5/8 x 21-7/8"  
20.9 cu. ft. - 40-1/4 x 41-5/8 x 21-7/8"  
20.9 cu. ft. - 40-1/4 x 41-5/8 x 21-7/8"  
H4837 SDDV-35NE  
128 Lb's  
H4838 SDDV-40NM 142 Lb's  
H4839 SDDV-40PM 142 Lb's  
10-7/8  
(275)  
H4840 SDDV-40NE  
142 Lb's  
Top View  
20-7/8  
(531)  
3 (76)  
E
Hood  
2 (51)  
1/2 (13)  
10-1/8  
(257)  
2-1/4  
(57)  
C
GAS INLET  
(Either Side  
and bottom)  
A
B
D
F
ELECTRICAL  
INLET  
3 (76)  
7
179)  
Front View  
Right Side View  
Fireplace Dimensions - Inches (millimeters)  
Model  
A
B
C
D
E
F
G
H
SDDV-35 40-1/8 (1019) 37-1/8 (943)  
SDDV-40 40-1/8 (1019) 37-1/8 (943)  
24 (610)  
24 (610)  
29-1/2 (749) 35-1/8 (892)  
34-1/2 (876) 40-1/8 (1019)  
27-1/2 (698)  
27-1/2 (698)  
21-1/2 (546)  
26-1/2 (675)  
10-3/4 (273)  
13-3/4 (337)  
Figure 13  
11  
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FIREPLACE FRAMING SPECIFICATIONS  
Notes:  
• Venting requirements for rear vent applications in corner installations, the horizontal vent  
length “a” to “b,” must not exceed 28 inches (711).  
b
*These dimensions occur when one 45 degree elbow is connected directly to the appliance collar.  
*F  
*In SDDV-35 corner installations, the unit has been moved 1-3/8 in. (35 mm) into the room in  
order to achieve a minimum of 5 in. (127 mm) in the F dimension.  
7 (178)  
*C  
Corner Framing With SV4.5HT-2 Termination - Inches (millimeters)  
*E  
Model  
A
B
C
D
E
F
*D  
a
35-1/8  
(892)  
65-1/2  
(1664)  
46-5/16 25-11/16  
(1176)  
32-3/4  
(832)  
5
SDDV-35  
(652)  
(127)  
40-1/8  
(1019)  
67-3/4  
(1721)  
47-7/8  
(1216)  
25-11/16  
(652)  
33-7/8  
(860)  
5-3/4  
(146)  
SDDV-40  
A
*B  
Inches  
(millimeters)  
Back wall of chase/enclosure  
(including any finishing materials)  
Corner Framing with Square Termination (SV4.5HT-2)  
Figure 14  
• A pipe joint compound rated for gas should be  
used on the threaded joints. Ensure propane  
resistant compounds are used in propane  
applications. Be very careful that the pipe  
compound does not get inside the pipe.  
• It is recommended to install a sediment trap  
in the supply line as close as possible to the  
appliance (see Figure 46). Appliances using  
Propane should have a sediment trap at the  
base of the tank.  
Proper Sizing of Gas Line  
Schedule 40 / Black Iron Pipe  
Inside Diameter (Inches)  
Properly size and route the gas supply line  
from the supply regulator to the area where  
the appliance is to be installed per require-  
ments outlined in the National Fuel Gas Code,  
NFPA 54 - latest edition (USA) or B149 - latest  
edition (Canada).  
Schedule 40 Pipe  
Length (feet)  
Natural  
Gas  
Propane  
Gas  
3/8  
1/2  
1/2  
1/2  
1/2  
0-10  
1/2  
1/2  
1/2  
3/4  
3/4  
10-40  
40-100  
100-150  
150-200  
Never use galvanized or plastic pipe. Refer to  
Table 9 for proper sizing of the gas supply line,  
if black iron pipe is being used. Gas lines must  
be routed, constructed and made of materials  
that are in strict accordance with local codes  
and regulations. We recommend that a quali-  
fied individual such as a plumber or gas fitter  
be hired to correctly size and route the gas  
supply line to the appliance. Installing a gas  
supplylinefromthefuelsupplytotheappliance  
involvesnumerousconsiderationsofmaterials,  
protection,sizing,locations,controls,pressure,  
sediment,andmore.Certainlynooneunfamiliar  
andunqualifiedshouldattemptsizingorinstall-  
ing gas piping.  
• Check with local building official for local code  
requirements(i.e.arebelowgradepenetrations  
of the gas line allowed?, etc).  
Table 9  
IMPORTANT: If propane is used, be aware that  
if tank size is too small (i.e. under 100-lbs, if  
this is the only gas appliance in the dwelling.  
Ref. NPFA 58), there may be loss of pressure,  
resulting in insufficient fuel delivery (which  
can result in sooting, severe delayed ignition  
or other malfunctions). Any damage resulting  
from an improper installation, such as this, is  
not covered under the limited warranty.  
Notes:  
• All appliances are factory-equipped with a  
flexiblegaslineconnectorand1/2inchshutoff  
valve (see Figures 46 & 48).  
• SeeMassachusettsRequirementsonPage4  
for additional requirements for installations in  
the state of Massachusetts in the USA.  
• The gas supply line should Not be connected  
to the appliance until Step 6 (Page 26).  
12  
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Preparing The Appliance Top Or Rear Vent  
Outlet  
Step 3. INSTALL THE VENT SYSTEM  
General Information  
WARNING  
When There Is 3 Feet Or More Of Vertical  
Venting, install a vent restrictor (provided) in  
the appliance top or rear flue outlet as shown  
in Figures 17a & 17b. It is held in place by  
friction, only.  
Failure to reinstall and securely  
tighten cover plate screws could  
result in leakage of flue products  
into the living space. Vent cover  
plate and vent seal plate must  
remain securely installed on  
unused vent collar. Failure to do  
so could result in leakage of flue  
products into living space.  
These instructions should be used as a guide-  
line and do not supersede local codes in any  
way. Install vent according to local codes,  
these instructions, the current National Fuel  
Gas Code (ANSI-Z223.1) in the USA or the  
current standards of CAN/CGA-B149.1 and  
-B149.2 in Canada.  
TOP VENT  
Restrictor Installation  
If3ft.ormoreofverticalventingisused,install  
a vent restrictor in the top vent of the fireplace  
outlet. It can be installed from the inside or  
outsideoftheunit, intheinnerreplacecollar.  
It is held in place by friction only.  
Useonlyapprovedventingcomponents. See  
Approved Vent Components on Page 2.  
TOP VENT SEAL CAP & COVER PLATE  
REMOVAL WHEN USING THE TOP VENT  
These fireplaces must be vented directly  
to the outside.  
(OUTSIDE UNIT)  
Restrictor  
SECURING SCREWS  
VENT SEAL CAP  
TOP VENT  
The vent system may not service multiple  
appliances, and must never be connected to a  
flue serving a solid fuel burning appliance. The  
vent pipe is tested to be run inside an enclosing  
wall (such as a chase). There is no requirement  
for inspection openings in the enclosing wall at  
any of the joints in the vent pipe.  
CABINET TOP  
Inner  
Fireplace  
Collar  
Appliance Top  
Vent Outlet  
Preparing the Appliance Vent Collar  
FIREBOX TOP  
VENT  
Figure 17a  
COVER PLATE  
Each of the unit's two vent collars are sealed  
with a cover plate and a seal cap. The cover  
plate and seal cap must be removed from the  
cent collar being used. Refer to Figure 15 for  
top vent usage and Figure 16 for rear, and  
the following steps to prepare the appropriate  
collar for use.  
LINTEL  
VENT COVER PLATE  
SECURING SCREW  
LINTEL  
COVER PLATE  
REAR VENT  
Restrictor Installation  
PUSH TO BEGIN REMOVAL  
PROCESS OF LINTEL COVER PLATE  
If 3 ft. or more of vertical venting is used, install  
a vent restrictor in the rear vent of the fireplace  
outlet. It can be installed from the inside or  
outside of the unit, in the inner fireplace collar.  
It is held in place by friction only.  
(INSIDE UNIT)  
CROSS SECTION  
From the vent collar being used, remove the  
screw securing the vent seal cap. Twist the cap  
counterclockwise to disengage it from the vent  
collar. Remove and discard the seal cap.  
Figure 15  
Inner Fireplace  
Appliance Rear  
Collar  
REAR VENT SEAL CAP & COVER PLATE REMOVAL  
WHEN USING THE REAR VENT  
Vent Outlet  
When the top vent is being used, remove the  
lintel cover plate by pushing it back towards  
the rear of the fireplace by its front flange. It  
can then be removed by pulling it forward.  
Loosen the two screws in the keyhole slots of  
the vent cover plate and remove the remaining  
two vent cover plate securing screws. Remove  
and discard the vent cover plate. Reinstall and  
securely tighten all four cover plate screws.  
Reinstall the lintel cover plate.  
SECURING SCREWS  
COVER PLATE  
Restrictor  
VENT SEAL CAP  
SECURING SCREWS  
BAFFLE  
SECURING  
SCREWS  
Figure 17b  
Select Venting System -  
Horizontal or Vertical  
When the rear vent is being used, from inside  
therebox,removethetwoscrewssecuringthe  
baffletotherearwalloftherebox,thenremove  
thebaffle. Loosenthetwoscrewsinthekeyhole  
slotsofthecoverplateandremovetheremaining  
two cover plate securing screws. Remove and  
discard the cover plate. Reinstall and securely  
tighten all four cover plate screws. Re-secure  
the baffle to the rear wall of the firebox.  
BAFFLE  
With the appliance secured in framing, de-  
termine vent routing and identify the exterior  
termination location. The following sections  
describe vertical (roof) and horizontal (exterior  
wall) vent applications. Refer to the section  
relating to your installation. A list of approved  
venting components is shown on Pages 32  
to 34.  
REAR VENT  
(INSIDE UNIT)  
(OUTSIDE UNIT)  
CABINET BACK  
CROSS SECTION  
Figure 16  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
13  
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VERTICAL TERMINATION SYSTEMS (ROOF)  
Vent Section Length Chart  
Vent Section Length Chart  
T
O
T
A
L
Nominal  
Section Length  
(inches)  
6
12  
24  
36  
48  
Nominal Section  
Length (inches)  
6
12  
24  
36  
48  
T
O
T
A
L
Figure 21 (Page 15), and Figures 26 to  
30 (Pages 17 and 18) and their associated  
Vertical Vent Tables illustrate the various verti-  
cal venting configurations that are possible for  
use with these appliances. Secure Vent pipe  
applicationsareshownintheseFigures;Secure  
Flex pipe may also be used. A Vertical Vent  
Tablesummarizeseachsystem’sminimumand  
maximum vertical and horizontal length values  
that can be used to design and install the vent  
components in a variety of applications.  
Net Section  
Length (inches)  
4 ½ 10 ½ 22 ½ 34 ½ 46 ½  
Number of Vent Sections  
Net Section  
Length (inches)  
4 ½ 10 ½ 22 ½ 34 ½  
Number of Vent Sections  
46  
½
Q
T
Y
Height of Vent  
Q
T
Height of Vent  
*inches  
feet  
Y
*inches  
feet  
144  
150  
12  
1
0
1
0
0
1
0
0
1
0
0
0
1
0
1
1
2
0
0
1
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
5
5
5
0
0
0
5
6
6
3
3
3
3
0
0
0
4
4
4
0
0
0
4
4
5
5
5
6
6
4
5
5
7
6
7
4.5  
9
0.375  
0.75  
1
2
0
1
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
1
2
1
2
12.5  
154.5 12.875  
160.5 13.375  
172.5 14.375  
10.5 0.875  
15 1.25  
19.5 1.625  
21 1.75  
0
0
Both these vertical vent systems terminate  
through the roof. The minimum vent height  
above the roof and/or adjacent walls is speci-  
fied in ANSI Z223.1-(latest edition) (In Canada,  
the current CAN-1 B149 installation code) by  
major building codes. Always consult your lo-  
cal codes for specific requirements. A general  
guide to follow is the Gas Vent Rule (refer to  
Figure 4 on Page 7).  
2
1
0
0
3
177  
183  
186  
14.75  
15.25  
15.5  
0
0
1
0
0
1
2
0
2
3
0
1
0
1
0
0
0
1
0
0
0
0
1
0
0
0
0
0
0
0
2
1
3
3
1
3
22.5 1.875  
25.5 2.125  
31.5 2.625  
34.5 2.875  
37.5 3.125  
190.5 15.875  
196.5 16.375  
205.5 17.125  
43.5 3.625  
0
0
0
1
2
0
0
0
1
2
0
2
0
0
0
0
0
0
1
0
3
2
1
3
207  
17.25  
45  
3.75  
211.5 17.625  
Vertical (Straight) Installation  
46.5 3.875  
49.5 4.125  
217.5 18.125  
229.5 19.125  
232.5 19.375  
0
0
0
1
0
1
0
0
0
0
1
1
0
0
0
1
0
1
0
0
1
0
1
0
0
1
0
1
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
6
6
0
0
5
5
0
0
0
0
0
6
0
6
6
6
0
0
7
7
7
0
0
8
8
0
9
9
7
7
Determine the number of straight vent sections  
required. 4-1/2" (114 mm), 10-1/2" (267 mm),  
22-1/2" (572 mm), 34-1/2" (876 mm) and 46-  
1/2"(1181mm)netsectionlengthsareavailable  
(see Table 11 and Page 32 - Item 3). Plan the  
vent lengths so that a joint does not occur at  
the intersection of ceiling or roof joists. Refer  
to the Vent Section Length Chart.  
0
5
51  
4.25  
1
0
0
0
0
0
1
1
0
0
0
0
0
1
1
0
1
0
2
0
0
0
0
1
0
2
0
0
0
0
0
2
1
2
3
0
3
0
0
0
1
2
0
1
0
0
0
1
0
0
2
0
2
2
1
0
0
0
2
0
1
0
0
0
0
0
0
0
0
1
1
1
2
0
2
2
3
2
4
3
2
4
3
3
2
4
3
2
4
3
237  
19.75  
0
6
55.5 4.625  
241.5 20.125  
7
7
57  
66  
4.75  
5.25  
246  
252  
264  
276  
279  
20.5  
21  
7
8
7
8
67.5 5.625  
22  
7
8
69  
72  
5.75  
6
23  
8
8
23.25  
0
6
73.5 6.125  
79.5 6.625  
SV4.5CGV-1  
280.5 23.375  
283.5 23.625  
289.5 24.125  
301.5 25.125  
310.5 25.875  
8
9
SV4.5FA OR  
Termination  
0
7
SV4.5FB Flashing  
AND SV4.5SC  
81  
90  
6.75  
7.5  
0
7
STORM COLLAR  
0
7
91.5 7.625  
9
9
93  
96  
7.75  
8
315  
26.5  
9
10  
7
325.5 27.125  
0
1" (25.4 mm)  
Minimum  
Clearance to  
Combustibles  
97.5 8.125  
102 8.5  
103.5 8.625  
330  
336  
345  
27.5  
28  
0
8
2
0
1
0
0
0
0
0
0
0
3
3
2
0
0
4
3
4
0
8
28.75  
10  
10  
0
10  
11  
8
108  
114  
117  
9
349.5 29.125  
372 31  
SV4.5VF  
9.5  
9.75  
0
1
1
0
1
0
0
0
1
2
0
1
0
0
0
0
0
0
0
5
0
1
1
6
0
0
0
0
0
3
3
3
0
4
0
4
2
0
0
0
0
0
0
3
0
4
6
5
4
5
6
4
3
5
Firestop/Spacer  
376.5 31.375  
379.5 31.625  
418.5 34.875  
0
9
118.5 9.875  
126 10.5  
130.5 10.875  
11  
0
11  
9
423  
465  
35.25  
38.75  
0
10  
135  
138  
11.25  
11.5  
0
10 10  
40' Max  
(12.2 M)  
SV4.5L6/12/24/36/48  
Vent Sections  
Table 10b  
139.5 11.625  
142.5 11.875  
Effective Vent Length  
When using Secure Flex  
use Firestop/Spacer  
Table 10a  
Model  
Effective Length  
4-1/2"  
SF4.5VF  
SV4.5L6  
SV4.5L12  
SV4.5L24  
SV4.5L36  
SV4.5L48  
* Convert inches into metric equiva-  
lent measure, as follows:  
10-1/2"  
22-1/2"  
Millimeters (mm) = Inches x 25.4  
Centimeters (cm) = Inches x 2.54  
Meters (M) = Inches x .0254  
34-1/2"  
Figure 18  
46-1/2"  
Table 11  
14  
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Vertical (Offset) Installation  
To add another vent component to a length of  
vent run, align the dimpled end over the inclined  
channel end of the previously installed section,  
adjustingtheradialalignmentuntilthefourlock-  
ing dimples are aligned with the inlets of the four  
incline channels of the previous section.  
B. Attach vent components to appliance  
-SecureVentSV4.5directventsystemcompo-  
nents are unitized concentric pipe components  
featuring positive twist lock connections (see  
Figure 20).  
Analyze the vent routing and determine the  
quantitiesofventsectionsandnumberofelbows  
required. Refer to Vertical Vent Figures and  
Tables on Pages 17 & 18 to select the type of  
vertical installation desired. Vent sections are  
available in net lengths of 4-1/2" (114 mm),  
10-1/2" (267 mm), 22-1/2" (572 mm), 34-1/2  
" (876 mm) and 46-1/2" (1181 mm). Refer to  
the Vent Section Length Chart on Page 14 for  
anaidinselectinglengthcombinations.Elbows  
areavailablein90°and45°configurations.Refer  
to Figure 22 on Page 16 for the SV4.5E45 and  
SV4.5E90 elbow dimensional specifications.  
All of the appliances covered in this document  
are fitted with collars having locking inclined  
channels. The dimpled end of the vent com-  
ponents fit over the appliance collar to create  
the positive twist lock connection.  
Push the vent component against the previous  
section until it fully engages, then twist the  
componentclockwiserunningthedimplesdown  
and along the incline channels until they seat at  
the end of the channels. This seating position  
is indicated by the alignment of the arrow and  
dimple as shown in Figure 20.  
Align the dimple (four places) of the  
upper vent section with the opening  
of the locking incline channel on the  
lower vent section or appliance col-  
lar. Twist vent component clockwise  
to engage and seal until arrow and  
D. Install firestop/spacer at ceiling - When  
usingSecureVent,useSV4.5VFrestop/spacer  
at ceiling joists; when using Secure Flex, use  
SF4.5VF firestop/spacer. If there is living space  
above the ceiling level, the firestop/spacer  
must be installed on the bottom side of the  
ceiling. If attic space is above the ceiling, the  
firestop/spacermustbeinstalledonthetopside  
of the joist. Route the vent sections through the  
framed opening and secure the firestop/spacer  
with 8d nails or other appropriate fasteners at  
each corner. Remember to maintain 1" (25  
mm) clearance to combustibles, framing  
members, and attic or ceiling insulation  
when running vertical chimney sections.  
Attic insulation shield (96K94) may be used  
to obtain the required clearances indicated  
here. See installation accessories, Pages  
32 through 34.  
Where required, a telescopic vent section  
(SV4.5LA) may be used to provide the installer  
withanoptionininstallingintightand confined  
spaces or where the vent run made up of fixed  
length pieces develops a joint in a undesirable  
location, or will not build up to the required  
length. The SV4.5LA Telescopic Vent Section  
has an effective length of from 1-1/2" (38 mm)  
to 7-1/2 " (191 mm). The SV4.5LA is fitted with  
a locking inclined channel end (identical to a  
normalventsectioncomponent)andaplainend  
with 3 pilot holes. Slip the plain end over the  
locking channel end of a standard SV4.5 vent  
component the required distance and secure  
with three screws.  
dimple align.  
Arrow  
Dimple  
Locking Incline  
Channel  
Connected Vent  
Sections  
Arrow  
Appliance Collar or  
Vent Section  
Figure 20  
Toattachaventcomponenttotheappliancecollar,  
alignthedimpledendoverthecollar,adjustingthe  
radial alignment until the four locking dimples are  
aligned with the inlet of the four inclined channels  
on the collar (refer to Figure 20). Push the  
vent component against the collar until it fully  
engages, then twist the component clockwise,  
runningthedimplesdownandalongtheincline  
channels until they seat at the end of the chan-  
nels. The unitized design of the Secure Vent  
componentswillengageandsealboththeinner  
and outer pipe without the need for sealant or  
screws. If desired, a #6 x 1/2" screw may be  
used at the joint, but is not required as the pipe  
will securely lock when twisted.  
Maintain a minimum 1" (25 mm) clearance to  
combustiblematerialsforallverticalelements.  
Clearances for all horizontal elements are 3"  
(76 mm) on top, 1" (25 mm) on sides and 1"  
(25 mm) on the bottom.  
E. Support the vertical vent run sections -  
Note-Properventingsupportisveryimportant.  
The weight of the vent must not be supported  
by the firplace in any degree.  
A. Frame ceiling opening - Use a plumb line  
from the ceiling above the appliance to locate  
center of the vertical run. Cut and/or frame an  
opening, 10-1/2" x 10-1/2" (267mm x 267mm)  
inside dimensions, about this center mark  
(Figure 19).  
Support the vertical portion of the venting  
system every 8 feet (2.4m) above the fireplace  
vent outlet.  
10-1/2" Min.  
(267 mm)  
Blocking  
Note: An elbow may also be attached to the  
appliance collar. Attach in the same manner  
as you would a vent section.  
Support Straps  
(Plumber's tape)  
10-1/2" Min.  
(267 mm)  
C. Attach vent components to each other  
- Other vent sections may be added to the  
previously installed section in accordance with  
the requirements of the vertical vent Figures  
and Tables.  
8 feet (2.4 m)  
Maximum  
1 inch (25.4  
mm) minimum  
clearance to  
combustibles  
Figure 19  
Figure 21  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
15  
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K. Install the vertical termination - The final  
step involves installation of the SV4.5CGV-1  
Vertical Termination. Extend the vent sections  
to the height as shown in the "Vertical vent ter-  
mination section" on Page 7. The SV4.5CGV-1  
VerticalTermination(Figure25)canbeinstalled  
in the exact same fashion as any other Secure  
Vent section. Align the termination over the  
end of the previously installed section, adjust-  
ing the radial alignment until the four locking  
dimples of the termination are aligned with  
the inlets of the four incline channels of the  
last vent section. Push the termination down  
until it fully engages, then twist the termination  
clockwise running the dimples down and along  
the incline channels until they are seated at the  
end of the channels.  
One method of support is by utilizing field pro-  
vided support straps (conventional plumber's  
tape). Securetheplumber'stapetotheframing  
members with nails or screws. Loop the tape  
around the vent, securing the ends of the tape  
totheframing.Ifdesired,sheetmetalscrews#6  
x 1/2" length may be used to secure the support  
straps to the vent pipe. Refer to Figure 21.  
C
D
F. Changeventdirectiontohorizontal/inclined  
run - At transition from or to a horizontal/in-  
clined run, install the SV4.5E45 and SV4.5E90  
elbows in the same manner as the straight vent  
sections. The elbows feature a twist section to  
allow them to be routed about the center axis  
of their initial collar section to align with the  
required direction of the next vent run element.  
Twist elbow sections in a clockwise direction  
only so as to avoid the possiblity of unlocking  
anyofthepreviouslyconnectedventsections.  
See Figure 22.  
Framing Dimensions for Roof  
Inches (millimeters)  
Pitch  
0/12  
C
D
10-1/2 in.  
(267 mm)  
10-1/2 in.  
(267 mm)  
6/12  
10-1/2 in.  
(267 mm)  
12 in.  
(305 mm)  
12/12  
10-1/2 in.  
(267 mm)  
17-3/4 in.  
(451 mm)  
Figure 23 - Roof Framing  
I. Install the roof flashing - Extend the vent  
sections through the roof structure. Install the  
roof flashing over the vent section and posi-  
tion such that the vent column rises vertically  
(use carpenters level) (Figure 24). Nail along  
perimeter to secure flashing or adjust roofing  
to overlap the flashing edges at top and sides  
only and trim where necessary. Seal the top  
and both sides of the flashing with waterproof  
caulking.  
8-1/8"  
4-13/16  
(206 mm)  
(122 mm)  
Swivel Joint  
(360° swivel)  
SV4.5E45  
Swivel Joint  
(360° swivel)  
SV4.5E90  
45° Elbow)  
90° Elbow)  
Figure 22  
Figure 25  
G.Continueinstallationofhorizontal/inclined  
sections - Continue with the installation of the  
straightventsectionsinhorizontal/inclinedrun  
as described in Step C. Install support straps  
every 5 ft. (1.52 m) along horizontal/inclined  
vent runs using conventional plumber’s tape.  
See Page 19, Figure 31. It is very important  
thatthehorizontal/inclinedrunbemaintained  
inastraight(nodips)andrecommendedtobe  
inaslightlyelevatedplane,inadirectionaway  
from the fireplace of 1/4 " rise per foot (20 mm  
per meter) which is ideal, though rise per foot  
run ratios that are smaller are acceptable all the  
way down to at or near level. Use a carpenter’s  
level to measure from a constant surface and  
adjust the support straps as necessary.  
J. Install the storm collar - Install the storm  
collar, supplied with the flashing, over the  
vent/flashing joint. See Figure 24. Loosen the  
storm collar screw. Slide collar down until it  
meets the top of the flashing. Tighten the ad-  
justingscrew. Applynon-combustiblecaulking  
or mastic around the circumference of the joint  
to provide a water tight seal.  
Iftheventsystemextendsmorethan5feet(1.5  
m) above the roof flashing, stabilizers may be  
necessary. Additional screws may be used at  
section joints for added stability. Guide wires  
may be attached to the joint for additional sup-  
port on multiple joint configurations.  
Storm  
Collar  
It is important to maintain the required clear-  
ancestocombustibles:1"(25mm)atallsides  
forallverticalruns;and3"(76mm)atthetop,  
1" (25 mm) at sides, and 1" (25 mm) at the  
bottom for all horizontal/inclined runs.  
Figure 24  
H. Frame roof opening - Identify location for  
vent at the roof. Cut and/or frame opening per  
Roof Framing Chart and Figure 23.  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
16  
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VERTICAL VENT FIGURES/TABLES  
Table A  
V Minimum  
Note: Secure Vent (rigid vent pipe) is shown  
in the Figures; Secure Flex (flexible vent pipe)  
may also be used.  
When using Secure Flex, use Firestop /  
H Maximum  
feet (meter)  
Spacer SF4.5VF.  
feet  
(meter)  
(0.305)  
(0.610)  
(0.914)  
(1.219)  
2
4
6
8
(0.610)  
(1.219)  
(1.829)  
(2.438)  
1
2
3
4
WARNING  
UnderNoCircumstances,MaySepa-  
rate Sections of Concentric Flexible  
Vent Pipe Be Joined Together.  
V + H = 40 feet (12.2 meters) Max.  
H = 8 feet (2.4 meters) Max.  
Ratio V to H ratio is 1:2  
Notes:  
• It is very important that the horizontal/in-  
clined run be maintained in a straight (no  
dips) and recommended to be in a slightly  
elevated plane, in a direction away from the  
fireplace of 1/4" rise per foot (20 mm per  
meter) which is ideal, though rise per foot  
run ratios that are smaller are acceptable all  
the way down to at or near level.  
Ceiling Firestop /  
Spacer (SV4.5VF)  
Example: If 8 feet of (H) horizontal vent run  
is needed, then 4 feet minimum (V) vertical  
vent will be required.  
SV4.5VF (Secure Vent), SF4.5VF (Secure  
Flex) firestop/spacer must be used anytime  
vent pipe passes through a combustible  
floor or ceiling. SV4.5HF (Secure Vent),  
SF4.5HF (Secure Flex)firestop/spacer must  
be used anytime vent pipe passes through  
a combustible wall.  
This table shows a 1(V) to 2(H) ratio. For  
every 1 foot of (V) vertical, you are allowed 2  
feet of (H) horizontal run, up to a maximum  
horizontal run of 8 feet.  
V
Two 45 degree elbows may be used in place  
of one 90 degree elbow. The same rise to  
run ratios, as shown in the venting Figures  
for90elbows, mustbefollowedif45degree  
elbows are used.  
H
• AN ELBOW IS ACCEPTABLE AS 1 FOOT OF  
VERTICALRISEEXCEPTWHEREANELBOW  
IS THE ONLY VERTICAL COMPONENT IN  
THE SYSTEM (See Figure 35).  
Figure 27 - Rear Vent - ONE 90 DEGREE ELBOW  
Table B  
H
H Maximum  
feet (meter)  
V Minimum  
feet (meter)  
Elbow Only  
5
(1.524)  
(1.524)  
(3.048)  
(4.572)  
(6.096)  
Ceiling Firestop /  
5
1
(0.305)  
(0.610)  
(0.914)  
(1.219)  
Spacer (SV4.5VF)  
10  
15  
20  
2
3
4
40 feet  
Ceiling Firestop /  
(12.2 meters)  
Spacer (SV4.5VF)  
Maximum  
V1  
V + V + H = 40 feet (12.2 m) Max.  
H = 20 feet (6.096 meters) Max.  
1
V
Example: If 20 feet of (H) horizontal vent run  
is needed, then 4 feet minimum of (V) vertical  
vent will be required.  
This table shows a 1(V) to 5(H) ratio. For  
every 1 foot of (V) vertical, you are allowed 5  
feet of (H) horizontal run, up to a maximum  
horizontal run of 20 feet.  
Wall Firestop/  
Spacer (SV4.5HF)  
An elbow is acceptable as 1 foot of vertical  
rise except where an elbow is the only vertical  
component in the system. See Figure 35.  
When using Secure Flex, use Firestop /  
SWphaecnerusSiFn4g.5SVeFc.ure Flex, use Firestop /  
WhenusingSecureFlex,useFirestop/Spacer  
SF4.5VF  
Spacer SF4.5HF.  
A Vent Restrictor, as shown in Figure 18  
Page 13, must be used in this application  
Figure 28 - Top Vent - TWO 90 DEGREE ELBOWS  
Figure 26 - Top Vent - STRAIGHT  
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VERTICAL VENT FIGURES/TABLES (CONTINUED)  
Table C  
H1  
H+H Maximum  
H Maximum  
V Minimum  
1
feet (meter) feet (meter)  
feet  
(meter)  
(0.305)  
(0.610)  
(0.914)  
(1.219)  
Ceiling  
5
(1.524)  
(3.048)  
(4.572)  
(6.096)  
2
4
6
8
(0.610)  
(1.219)  
(1.829)  
(2.438)  
1
2
3
4
Firestop / Spacer  
(SV4.5VF)  
10  
15  
20  
Wall Firestop/  
Spacer (SV4.5HF)  
V + V + H + H = 40 feet (12.2 m) Max  
H = 8 feet (2.438 meters) Max.  
1
1
V1  
Ceiling  
Firestop / Spacer  
(SV4.5VF)  
H + H = 20 feet (6.096 meters) Max.  
1
When using Secure Flex, use Firestop / Spacer SF4.5VF  
When using Secure Flex, use Firestop / Spacer SF4.5HF  
Example: If 20 feet total (H+H1) horizontal vent run is needed,  
then 4 feet minimum of (V) vertical vent will be required.  
V
This table shows a 1(V) to 5(H) ratio. For every 1 foot of (V)  
vertical, you are allowed 5 feet of (H+H1) horizontal run up to a  
maximum total horizontal run of 20 feet.  
H
Figure 29 - Rear Vent - THREE ELBOWS  
Example: If 20 feet total (H+H1)  
horizontal vent run is needed,  
then 4 feet minimum of (V) verti-  
cal vent will be required.  
Table D  
V Minimum  
(meter)  
Elbow Only  
(0.305)  
H + H Maximum  
1
Ceiling  
feet  
(meter)  
(1.524)  
(1.524)  
(3.048)  
(4.572)  
(6.096)  
feet  
Firestop / Spacer  
(SV4.5VF)  
V
1
This table shows a 1(V) to 5(H)  
ratio. For every 1 foot of (V)  
vertical run, you are allowed 5  
feet of (H) horizontal run up to a  
maximum (H+H1) horizontal run  
of 20 feet.  
Wall Firestop/  
5
Spacer (SV4.5HF)  
5
1
2
3
4
10  
15  
20  
(0.610)  
(0.914)  
(1.219)  
H
An elbow is acceptable as 1 foot  
of vertical rise except where  
an elbow is the only vertical  
component in the system. See  
Figure 35.  
V
H + H = 20 feet (6.096 m) Max.  
V + V + H + H = 40 ft. (12.192 m) Max.  
1
H
1
1
1
When using Secure Flex, use Firestop / Spacer SF4.5VF  
When using Secure Flex, use Firestop / Spacer SF4.5HF  
Figure 30 - Top Vent - THREE ELBOWS  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
18  
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Support Brackets  
Building  
Support  
Framing  
TYPICAL HORIZONTAL VENT INSTALLATION  
Horizontal / Inclined Run  
SV4.5HT-2  
Termination  
Shown  
SV4.5E90  
Elbow  
SV4.5L6/12/24/36/48  
Vent Sections  
Exterior  
Wall  
Ceiling  
Firestop / Spacer  
SV4.5VF  
Vertical  
Rise  
Support Bracket Spacing  
Every 5 ft (1.52 m)  
When Using Secure Flex,  
Use Firestop / Spacer SF4.5VF  
SV4.5HT-2  
Termination  
Shown  
See Figure 18 on Page 14 or Figure 21 on  
Page 15 for vertical vent section support.  
NOTE: DIAGRAMS & ILLUSTRA-  
TIONS ARE NOT TO SCALE.  
Fireplace  
Figure 31  
HORIZONTAL (OUTSIDE WALL)  
TERMINATION SYSTEM  
B. Frame exterior wall opening -  
adjustingtheradialalignmentuntilthefourlock-  
ing dimples are aligned with the inlets of the four  
incline channels of the previous section. Push  
theventcomponentagainsttheprevioussection  
until it fully engages, then twist the component  
clockwise running the dimples down and along  
the incline channels until they seat at the end of  
thechannels.Thisseatingpositionisindicated  
by the alignment of the arrow and dimple as  
shown in Figure 20 on Page 15.  
Locate the center of the vent outlet on  
the exterior wall according to the dimen-  
sions shown in Figure 13 on Page 10. Cut  
and/or frame an opening, 10-1/2" x 12-1/8"  
(267 mm x 308mm) inside dimensions, about  
this center.  
Figure 31, and Figures 34 to 40 on Pages  
21 to 23 and their associated Horizontal Vent  
Table illustrate the various horizontal venting  
configurations that are possible for use with  
theseappliances. SecureVentpipeapplications  
are shown in these Figures; Secure Flex pipe  
may also be used. A Horizontal Vent Table sum-  
marizeseachsystem’sminimumandmaximum  
verticalandhorizontallengthvaluesthatcanbe  
used to design and install the vent components  
in a variety of applications.  
C. Frame ceiling opening - If the vertical route  
istopenetrateaceiling,useplumblinetolocate  
thecenterabovetheappliance.Cutand/orframe  
an opening, 10-1/2" x 10-1/2" (267 mm x 267  
mm)insidedimensions,aboutthiscenter(refer  
to Figure 19 on Page 15).  
F. Install firestop/spacer at ceiling -  
WhenusingSecureVent,useSV4.5VFrestop/  
spaceratceilingjoists;whenusingSecureFlex,  
use SF4.5VF firestop/spacer. If there is living  
spaceabovetheceilinglevel,therestop/spacer  
must be installed on the bottom side of the  
ceiling. If attic space is above the ceiling, the  
firestop/spacermustbeinstalledonthetopside  
ofthejoist. Routetheventsectionsthroughthe  
framed opening and secure the firestop/spacer  
with 8d nails or other appropriate fasteners at  
each corner.  
D. Attach vent components to appliance - To  
attachaventcomponenttotheappliancecollar,  
align the dimpled end over the collar, adjust-  
ing the radial alignment until the four locking  
dimples are aligned with the inlets of the four  
incline channels on the collar (refer to Figure  
20 on Page 15).  
Bothofthesehorizontalventsystemsterminate  
throughanoutsidewall. BuildingCodeslimitor  
prohibit terminating in specific areas. Refer to  
Figure 6 on Page 8 for location guidelines.  
Secure Vent SV4.5 direct vent system compo-  
nents are unitized concentric pipe components  
featuring positive twist lock connection, (refer  
to Figure 20 on Page 15). All of the appli-  
ances covered in this document are fitted with  
collars having locking inclined channels. The  
dimpled end of the vent components fit over  
the appliance collar to create the positive twist  
lock connection.  
Push the vent component against the collar  
until it fully engages, then twist the component  
clockwise,runningthedimplesdownandalong  
the incline channels until they seat at the end  
of the channels.  
Remember to maintain 1" (25 mm) clearance  
to combustibles, framing members, and attic  
or ceiling insulation when running vertical  
chimney sections.  
The unitized design of the Secure Vent  
components will engage and seal both the  
inner and outer pipe elements with the same  
procedure. Sealant and securing screws are  
not required.  
G. Support the vertical run sections -  
See Section E on Page 15.  
A. Plan the vent run -  
Analyze the vent routing and determine the  
types and quantities of sections required  
4-1/2"(114mm),10-1/2"(267mm),22-1/2"(572  
mm), 34-1/2" (876 mm) and 46-1/2" (1181 mm)  
net section lengths are available. Plan the vent  
lengths so that a joint does not occur at the inter-  
section of ceiling or roof joists. Make allowances  
for elbows as indicated in Figure 22.  
H.Changeventdirection -Attransitionfromor  
toahorizontal/inclinedrun,installtheSV4.5E45  
and SV4.5E90 elbows in the same manner as  
thestraightventsections. Theelbowsfeaturea  
twistsectiontoallowthemtoberoutedaboutthe  
center axis of their initial collar section to align  
with the required direction of the next vent run  
element. Twist elbow sections in a clockwise  
direction only so as to avoid the possiblity of  
unlockinganyofthepreviouslyconnectedvent  
sections. See Figure 22 on Page 16.  
Note: An elbow may also be attached to the  
appliance collar. Attach in the same manner  
as you would a vent section.  
E. Attach vent components to each other - Other  
vent sections may be added to the previously in-  
stalledsectioninaccordancewiththerequirements  
oftheventtables. Toaddanotherventcomponent  
to a length of vent run, align the dimpled end of  
the component over the inclined channel end of  
the previously installed section,  
Maintain a minimum 1" (25 mm) clearance to  
combustibles on the vertical sections. Clear-  
ances for the horizontal runs are; 3" (76 mm)  
on top, 1" (25 mm) on sides, and 1" (25 mm)  
at the bottom.  
19  
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I. Continue installation of horizontal/inclined  
sections - Continue with the installation of the  
straight vent sections in horizontal/inclined run  
as described in Step E. Install support straps  
every 5 ft. (1.52 m) along horizontal/inclined  
vent runs using conventional plumber’s tape.  
See Figure 31. It is very important that the  
horizontal/inclined run be maintained in a  
straight (no dips) and recommended to be in  
a slightly elevated plane, in a direction away  
from the fireplace of 1/4" rise per foot (20 mm  
per meter) which is ideal, though rise per foot  
run ratios that are smaller are acceptable all the  
way down to at or near level.  
To help minimize water infiltration it is  
recommended that the Firestop/Spacer  
(SV4.5HF) be installed on the exterior  
side of the wall.  
SV4.5 HT-2  
Termination  
7"  
(178)  
10¹⁄₂"  
12¹⁄₈"  
(267mm)  
(308 mm)  
5¹⁄₈"  
(130 mm)  
3"  
(76 mm)  
1"  
Adapter  
SV4.5RCH  
(25.4 mm)  
It is important to maintain the required clear-  
ancestocombustibles:1"(25mm)atallsides  
for all vertical runs; and 3" (76 mm) at the top,  
1" (25 mm) at sides, and 1" (25 mm) at the  
bottom for all horizontal/inclined runs.  
Note: Centerline of Vent Piping is  
NOT the Same as the Centerline of  
the Framed Opening.  
See Figure 13 on Page 11 for Min.  
Distance to Base of Appliance.  
6 to 48 inch Vent Section,  
Telescopic vent section,  
Elbow or Appliance Collar  
J. Assemble vent run to exterior wall - If not  
previously measured, locate the center of the  
vent at the exterior wall. Prepare an opening as  
described in Step B. Assemble the vent system  
topointwheretheterminusofthelastsectionis  
located relative to the exterior surface to which  
the termination is to be attached (see Figures  
32 & 33 and Table 12 on Page 21.  
Base of Appliance  
Figure 32 - INSTALLING SQUARE HORIZONTAL TERMINATION (SV4.5HT-2)  
Maximum Wall Thickness  
10 in. (254 mm)  
Use silicone caulking to seal  
the top and sides of the  
termination, up to the  
underlayment, stucco, or  
masonry wall surface.  
If the terminus of the last section is not within  
this distance, use the telescopic vent section  
SV4.5LA, as the last vent section. For wall  
thicknesses greater than that shown in Figure  
33 and Table 12 on Page 21. This table lists  
the additional venting components needed (in  
addition to the termination and adapter) for a  
particular range of wall thicknesses.  
Exterior Surface of Siding  
Exterior Surface of  
Framing  
Interior Surface of  
Finished Wall  
Maximum Extent of  
Vent Run Sections  
Relative to Exterior  
Surface of Framing  
Siding  
6 in. to 9-1/4 in.  
(152 to 235 mm)  
Caulk  
Last Vent Section.  
Use Telescopic Vent  
Section (SV4.5LA), If  
Necessary  
K. Attach termination adapter - Attach the  
adapter(adapter-SV4.5RCH-providedwiththe  
termination) to the vent section or telescoping  
ventsection,elboworappliancecollarasshown  
in Figures 32 & 33 in the same manner as any  
SV4.5 vent component (refer to Step E).  
SV4.5 HT-2  
Termination  
Caulk  
SV4.5 HT-2  
Termination  
Adapter  
SV4.5RCH  
L. Install Firestop/Spacer at exterior wall  
- When using the square termination, install  
SV4.5HF (Secure Vent), SF4.5HF (Secure Flex)  
Firestop/Spacerovertheopeningattheexterior  
sideoftheframing, longsideup, withthe3inch  
spacer clearance at the top as shown in Figure  
32, and nail into place.  
1-1/4” Maximum Recess of  
Square Termination  
into Exterior Finishing Material  
Stucco  
For thicknesses greater  
than 10", see Table 12  
Venting Connection and Exterior Wall Recessing of the Horizontal Square  
Termination (SV4.5HT-2).  
Figure 33  
(TheFirestop/Spacermayalsobeinstalledover  
the opening at the interior side of framing).  
Horizontal terminations have been designed to perform in a wide range of weather condi-  
tions. Our terminations meet or exceed industry standards.  
IMPORTANT  
When selecting the locations of your horizontal terminations, do not place the termina-  
tion where water from eaves and adjoining rooflines may create a heavy flow of cascad-  
ing water onto the termination cap. If the cap must be placed where the possibility of  
cascading water exists, it is the responsibility of the builder to direct the water away  
from the termination cap by using gutters or other means.  
The vent termination is hot while  
in operation and for a period of  
time following the use of the fire-  
place. To prevent contact with hot  
surfaces, we recommend the use  
of a Termination Guard. See Items  
12 and 13 on Page 32. This can be  
purchased at your local dealer.  
Take care to carefully follow the installation instructions for the termination, including  
the use of silicone caulking where required.  
20  
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M. Install the Square Termination (SV4.5HT-2)  
See Table 12 as an aid in venting component selection for a particular  
range of exterior wall thicknesses.  
Install the square termination - For the last step , from outside the  
exterior wall, slide the collars of the termination onto the adapter (the  
outer inside the outer and the inner outside the inner) until the termina-  
tion seats against the exterior wall surface to which it will be attached.  
Orient the housing of the termination with the arrow pointed upwards.  
Secure the termination to the exterior wall. The horizontal termination  
must not be recessed into the exterior wall or siding by more than the  
1-1/4" (32 mm) as shown in Figure 33.  
WARNING  
Under no circumstances, may separate sections of  
concentric flexible vent pipe be joined together.  
Table F  
HORIZONTAL VENT FIGURES/TABLES  
H Maximum  
feet (meter) feet (meter)  
(.914) Elbow Only  
V Minimum  
Notes:  
• Secure Vent components (rigid vent pipe and terminal) are shown in  
the Figures; Secure Flex components (flexible vent pipe and terminal)  
may also be used.  
3
Two 45 degree elbows may be used in place of one 90 degree elbow.  
The same rise to run ratios, as shown in the venting Figures for 90  
elbows,must be followed if 45 degree elbows are used.  
SV4.5VF(SecureVent),SF4.5VF(SecureFlex)restop/spacermustbe  
used anytime vent pipe passes through a combustible floor or ceiling.  
SV4.5HF (Secure Vent), SF4.5HF (Secure Flex) firestop/spacer must  
be used anytime vent pipe passes through a combustible wall.  
• It is very important that the horizontal/inclined run be maintained  
in a straight (no dips) and recommended to be in a slightly elevated  
plane, in a direction away from the fireplace of 1/4" rise per foot (20  
mm per meter) which is ideal, though rise per foot run ratios that are  
smaller are acceptable all the way down to at or near level.  
The tables show a 1(V) to 5(H) ratio up to a maximum horizontal run  
of 20 feet except for installations where an elbow is the only vertical  
vent section in the system (see Figure 35).  
Square termination  
(SV4.5HT-2) shown.  
H
V
When using Secure Flex,  
Wall  
use Firestop/Spacer  
Firestop/Spacer  
(SV4.5HF)  
SF4.5HF  
SeeTable12asanaidinventingcomponentselectionforaparticular  
range of exterior wall thicknesses.  
• AN ELBOW IS ACCEPTABLE AS 1 FOOT OF VERTICAL RISE EXCEPT  
WHERE AN ELBOW IS THE ONLY VERTICAL COMPONENT IN THE  
SYSTEM. See Figure 35.  
Figure 35 - Top Vent -  
ONE 90 DEGREE ELBOW - ELBOW CONNECTION AT APPLIANCE  
Venting Components Required for Various Exterior Wall Thick-  
nesses, when using Square Termination Kit (SV4.5HT-2)  
Example: If20feetof(H) hori-  
Table G  
zontal vent run is needed, then  
4 feet minimum of (V) vertical  
vent will be required.  
Exterior Wall Thickness  
Vent Components Required  
V Minimum  
H Maximum  
- inches (mm)  
feet (meter) feet  
(meter)  
(0.305)  
(0.610)  
(0.914)  
(1.219)  
Termination Kit Only  
6 to 9-1/4 (152 to 235)  
This table shows a 1(V) to  
5(H) ratio. For every 1 foot  
of vertical, you are allowed 5  
feet of (H) horizontal run up to  
a maximum (H) horizontal run  
of 20 feet.  
5
(1.524)  
(3.048)  
(4.572)  
(6.096)  
1
2
3
4
Termination Kit and 6 In. Vent Section  
(SV4.5L6)  
10-1/2 to 13-3/4 (267 to 349)  
10  
15  
20  
Termination Kit and 12 in. Vent Section  
(SV4.5L12)  
16-1/2 to 19-3/4 (419 to 502)  
11 to 19-3/4 (279 to 502)  
Termination Kit & Telescopic Section (SV4.5LA  
2 to 7-1/2") & 6" vent section (SV4.5L6)  
V + H = 40 feet (12.2 m) Max.  
H = 20 ft. (6.096 m) Max.  
Note:SeeFigure33showingwallthicknessrange  
when using SV4.5HT-2 termination kit only.  
Table 12  
H
When using Secure Flex,  
use Firestop/Spacer  
H = 28 in. (711 mm) Maximum.  
SF4.5VF.  
V
When using Secure Flex,  
use Firestop/Spacer  
When using Secure Flex,  
H
SF4.5HF.  
use Firestop/Spacer  
SF4.5HF  
Wall Firestop/Spacer  
(SV4.5HF)  
Wall Firestop/Spacer  
(SV4.5HF)  
Square termination  
(SV4.5HT-2) shown.  
Ceiling  
Firestop/Spacer  
(SV4.5VF)  
7 in. (178 mm)  
SeeTable12 asanaidinventingcomponentselection  
for a particular range of exterior wall thicknesses.  
Square termination  
(SV4.5HT-2) shown.  
Figure 36 - Top Vent - ONE 90 DEGREE ELBOW -  
ELBOW CONNECTION NOT DIRECTLY AT APPLIANCE  
Figure 34 - Rear Vent - NO ELBOWS  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
21  
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HORIZONTAL VENT FIGURES/TABLES (CONTINUED)  
Table H  
H
V Minimum  
H
+H1 Maximum  
H Maximum  
H
1
feet  
5
(meter)  
(1.524)  
(3.048)  
(4.572)  
(6.096)  
feet (meter)  
feet  
(meter)  
(0.305)  
(0.610)  
(0.914)  
(1.219)  
2
4
6
8
(0.610)  
(1.219)  
(1.829)  
(2.438)  
1
2
3
4
Wall  
10  
15  
20  
Firestop/Spacer  
(SV4.5HF)  
Ceiling  
Firestop/Spacer  
(SV4.5VF)  
V + H + H = 40 feet (12.2 m) Max  
1
H = 8 feet (2.438 meters) Max.  
When using  
H + H = 20 feet (6.096 meters) Max.  
1
Secure Flex, use  
Firestop/Spacer  
SF4.5VF.  
V
Example: If 20 feet of (H + H1) horizontal vent run is needed,  
then 4 feet minimum of (V) vertical vent will be required.  
When using  
This table shows a 1(V) to 5(H) ratio. For every 1 foot of (V)  
vertical, you are allowed 5 feet of (H+ H1) horizontal run, up  
to a maximum horizontal run of 20 feet.  
Secure Flex, use  
Firestop/Spacer  
SF4.5HF.  
See Table 12 on Page 21 as an aid in venting component  
selection for a particular range of exterior wall thick-  
nesses.  
Square termination (SV4.5HT-2) shown.  
Figure 37 - Rear Vent - TWO 90 DEGREE ELBOWS  
Wall Firestop/Spacer  
(SV4.5HF)  
Table J  
V Minimum  
feet (meter)  
Elbow Only  
H + H Maximum  
1
H
feet  
(meter)  
(0.914)  
(1.524)  
(3.048)  
(4.572)  
(6.096)  
3
H
5
1
2
3
4
(0.305)  
(0.610)  
(0.914)  
(1.219)  
1
V
10  
15  
20  
Note - When using  
Secure Flex, use  
Wall Firestop/Spacer  
(SV4.5HF)  
Firestop/Spacer SF4.5VF.  
V + H + H = 40 feet (12.2 m) Max.  
H + H = 20 ft. (6.096 m) Max.  
When using Secure Flex,  
1
use Firestop/Spacer  
SF4.5HF.  
1
Ceiling  
Firestop/Spacer  
(SV4.5VF)  
Square termination (SV4.5HT-2) shown.  
Example: If 20 feet of (H + H1) horizontal vent run is needed, then 4 feet minimum of (V) vertical  
See Table 12 on Page 21 as an aid in venting  
component selection for a particular range of  
exterior wall thicknesses.  
vent will be required.  
This table shows a 1(V) to 5(H) ratio. For every 1 foot of (V) vertical, you are allowed 5 feet of (H+  
H1) horizontal run, up to a maximum horizontal run of 20 feet.  
An elbow is acceptable as 1 foot of vertical rise except where an elbow is the only vertical component  
in the system. See Figure 35.  
Figure 38 - Top Vent - TWO 90 DEGREE ELBOWS  
22  
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HORIZONTAL VENT FIGURES / TABLES (CONTINUED)  
Table K  
Wall Firestop/Spacer  
(SV4.5HF)  
V Minimum  
H + H + H Maximum  
H Maximum  
1
2
feet  
5
(meter)  
(1.524)  
(3.048)  
(4.572)  
(6.096)  
feet  
(meter)  
(0.610)  
(1.219)  
(1.829)  
(2.438)  
feet  
(meter)  
(0.305)  
(0.610)  
(0.914)  
(1.219)  
2
4
6
8
1
2
3
4
H
1
10  
15  
20  
H
2
Square termination  
(SV4.5HT-2) shown.  
V + H + H + H = 40 feet (12.2 m) Max  
1
2
H = 8 feet (2.438 meters) Max.  
H + H + H = 20 feet (6.096 meters) Max.  
1
2
Ceiling  
When using Secure Flex,  
use Firestop/Spacer  
SF4.5VF.  
Firestop/Spacer  
(SV4.5VF)  
Example: If20feettotal(H+H1+H2) horizontalvent  
run is needed, then 4 feet minimum of (V) vertical  
vent will be required.  
V
When using Secure  
Flex, use Firestop/Spacer  
SF4.5HF.  
This table shows a 1(V) to 5(H) ratio. For every  
1 foot of (V) vertical, you are allowed 5 feet of  
horizontal run up to a maximum total (H+H1+H2)  
horizontal run of 20 feet.  
See Table 12 on Page 21 as an aid in venting  
component selection for a particular range of  
exterior wall thicknesses.  
H
Figure 39 - Rear Vent - THREE 90 DEGREE ELBOWS  
Table L  
When using Secure Flex,  
use Firestop/Spacer  
SF4.5VF.  
V Minimum  
feet (meter)  
Elbow Only  
H + H Maximum  
1
When using Secure  
H
1
feet  
5
(meter)  
(1.524)  
(1.524)  
(3.048)  
(4.572)  
(6.096)  
Flex, use Firestop/Spacer  
SF4.5HF.  
5
1
2
3
4
(0.305)  
(0.610)  
(0.914)  
(1.219)  
Ceiling  
Firestop/Spacer  
10  
15  
20  
(SV4.5VF)  
H
Wall Firestop/Spacer  
(SV4.5HF)  
H + H = 20 feet (6.096 m) Max.  
V + V + H + H = 40 ft. (12.192 m) Max.  
1
V
1
1
1
V
Square termination  
(SV4.5HT-2) shown.  
Example: If 20 feet total (H+H1) horizontal  
vent run is needed, then 4 feet minimum of  
(V) vertical vent will be required.  
See Table 12 on Page  
21 as an aid in venting  
component selection for  
a particular range of exte-  
rior wall thicknesses.  
This table shows a 1(V) to 5(H) ratio. For every  
1 foot of (V) vertical, you are allowed 5 feet  
of (H+ H1) horizontal run, up to a maximum  
horizontal run of 20 feet.  
Wall Firestop/Spacer  
(SV4.5HF)  
An elbow is acceptable as 1 foot of vertical  
rise except where an elbow is the only vertical  
component in the system. See Figure 35.  
Figure 40 - Top Vent - THREE 90 DEGREE ELBOWS  
23  
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VERTICAL OR HORIZONTAL VENTING USING  
SECURE FLEX KITS AND COMPONENTS  
Flex Vent  
Note: Outer Pipe Is Pulled Away To Show  
The Detail of The Inner Pipe  
Securing Screw - 3 Places  
Equidistant (equally spaced)  
Just Below Gear Clamp)  
Secure Flex venting kits and components  
may be used in any venting application in  
place of rigid Secure Vent (SV4.5) direct vent  
components. All restrictions, clearances and  
allowances that pertain to the rigid piping apply  
to the flexible venting. Secure Flex kits may  
notbemodified;also,undernocircumstances  
may separate sections of flex pipe be joined  
together.  
APPLY ONLY MIL-PAC BLACK  
HIGH TEMPERATURE SEALANT  
(Cat. No. 10K81) to the outside  
surface of both collars of the  
adapter (be especially careful to  
fill the grooves of the outer collar  
tobecoveredbytheexiblepipe)  
and slide flexible pipe over inner  
and outer adapter collars.  
Gear Clamps  
Using adapter (SV4.5RF), Secure Flex kits  
may be added to the end of a vent run made  
up of rigid Secure Vent (SV4.5) vent sections  
provided that doing so does not violate any of  
the venting length, height, routing, horizontal  
to vertical ratio requirements or clearance  
considerations detailed in this manual.  
1-3/4 inch (44 mm) Flexible  
PipeandAdapterOuterCollar  
Overlap  
1-3/4 in. (44 mm) Flexible  
PipeandAdapterInnerCollar  
Overlap  
Secure Flex kits come with an adapter that  
can be fitted to the inclined channel end of the  
last Secure Vent (SV4.5) vent section in a rigid  
system in the exact same fashion as any other  
Secure Vent section.  
Adapter (SV4.5RF)  
Securing Screw  
- 3 Places, 120° apart  
(equally spaced) Just  
Below Gear Clamp  
Attach Adapter to Appliance  
Collar, or Secure Vent Sections  
Figure 41  
Align the dimpled end of the adapter over  
the previously installed section or appliance  
collar, adjusting the radial alignment until the  
four locking dimples of the adapter are aligned  
with the inlets of the four incline channels of  
the last vent section or collar. Push on the  
adapter until it fully engages, then twist the  
adapter clockwise running the dimples down  
and along the incline channels until they seat  
at the end of the channels.  
B. Install the Outer Flex Pipe -  
SeetheappropriatesectionsandFiguresshown  
throughout the venting section for their instal-  
lation requirements.  
1. Install the large gear clamp loosely around  
the outer flexible vent pipe, push it back out  
of the way.  
2. ApplyabeadofMill-PacBlack(700°F)high  
temperature sealant - Catalog No. 10K81)  
to the outer adapter collar; to the grooves  
of the collar which extend approximately 1  
inch from the end and to the flat surface,  
approximately 1-3/8 inches from the end.  
3. Pull and extend outer flexible vent pipe.  
4. Slidetheouterexpipeovertheadaptercol-  
lar. Ensure the flexible vent pipe completely  
engages the adapter collar to a distance of  
1³⁄₄ inches from the end, and that it is free  
from damage or tears.  
5. Slide the gear clamp down and tighten it  
fullytosecuretheexibleventtotheadapter  
outer collar approximately 3/4 inch from the  
end of the flex.  
6. Install three screws 120 degrees apart  
through the flexible vent pipe and into the  
adapter collar just below the gear clamp to  
provide additional security to the connec-  
tion.  
Flexible Vent  
Section  
Attach the flexible vent to the adapter as fol-  
lows (see Figure 41):  
A. Install the Inner Flex Pipe -  
1. Install the small gear clamp loosely around  
the inner flexible vent pipe, push it back out  
of the way.  
2. ApplyabeadofMill-PacBlack(700°F)high  
temperature sealant - Catalog No. 10K81  
to the inner adapter collar, approximately  
1/2 inch from the end.  
3. Pull and extend the inner flexible vent  
pipe.  
4. Slidetheinnerexpipeovertheadaptercol-  
lar. Ensure the flexible vent pipe completely  
engages the adapter collar to a distance of  
1-3/4 inches from the end, and that it is free  
from damage or tears.  
5. Slide the gear clamp down and tighten it  
fullytosecuretheexibleventtotheadapter  
inner collar approximately 3/4 inch from the  
end of the flex.  
5” (127 mm)  
Radius  
Minimum  
Figure 42  
E. Attach Flex Vent to Termination -  
Secure Flex components can be purchased  
separately and attached to bulk lengths of Se-  
cure Flex flexible tubing cut to size at the job  
site. SecuretheexibleventtotheSecureFlex  
terminations in the same manner (see Figure  
41) as it was attached to the adapter.  
C. Route Flex Vent -  
Ensure that the flex vent is properly routed to  
providetherequiredclearance.Donotallowthe  
flexible vent to bend in a radius tighter than 5"  
(127 mm). Refer to Figure 42. Space out the  
internalexventspacersevenly-approximately  
every 6 inches - and avoid kinking of inner pipe.  
Support horizontal sections of flex with metal  
straps at 2 foot (0.61 m) intervals.  
Note: Secure Flex vent must be attached to  
Secure Flex terminations only. DO NOT sub-  
stituteSecureVentterminationsortheSecure  
Vent adapter for Secure Flex components.  
The collars of Secure Flex terminations and  
adapters have a different diameter than that  
usedwiththeSecureVentpipe. Additionally,  
Secure Flex components have an extended  
length center tube for use in attaching the  
flexible vent.  
6. Install three screws 120 degrees apart  
through the flexible vent pipe and into the  
adapter collar just below the gear clamp to  
provide additional security to the connec-  
tion.  
D. Install Firestop / Spacers at ceilings and  
walls - When Secure Flex penetrates a wall or  
ceiling, a firestop / spacer is required: use the  
SF4.5 VF firestop / spacer for ceilings and the  
SF4.5 HF firestop / spacer for walls.  
24  
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3. Wire the control within the millivolt control  
circuit using the 15 feet of 2 conductor wire  
supplied with the unit . Caution: do not  
connect the optional wall switch to a 120V  
power supply.  
4. Alternatively, theappliancemaybeoperated  
without the use of the controls indicated in  
Step 1, solely by manipulating the gas valve  
control knob. In order to use this method,  
twistthefreeendsofthetwoconductorwire  
(which would otherwise go to the standard  
ON/OFF switch or Optional Switch) together  
as shown in Figure 43.  
Step 4. FIELD WIRING  
3. Connect the power supply wires (including  
the ground supply wire) as shown in Figures  
44 & 45. (If the field-provided J-box/outlet  
box is being used, all of the outlet box wiring  
must be field-provided).  
4. Locate and install a low voltage (24V) wall-  
mounted switch or thermostat (both field-  
provided)in the desired location.  
Refer to Section A for millivolt appliances and  
Section B for electronic appliances. The gas  
valve is set in place and pre-wired at the factory  
on both models.  
CAUTION  
Ensure that wires are positioned  
away from hot surfaces and sharp  
edges.  
5. Connect the low voltage wire, located inside  
thecontrolcompartment,tothewall-mounted  
switch or thermostat.  
Note:Thesupplied15feetof2conductorwire  
has one end of each conductor connected to  
the gas valve circuit and the other end of each  
conductor placed loose inside the control  
compartment.  
Note: Wire is located inside the control  
compartment  
CAUTION  
Note: The supplied 15 feet of 2 conductor wire  
has one end of each conductor connected to  
the gas valve circuit and the other end of each  
conductor placed loose inside the control  
compartment.  
6. Insert the control circuit plug into the un-  
switched receptacle of the outlet box.  
7. After wiring is complete, mount the outlet box  
to the J-Box.  
Labelallwirespriortodisconnection  
when servicing controls. Wiring  
errors can cause improper and dan-  
gerous appliance operation.  
Note:Thegasvalve-mountedON/OFFswitch is  
shown in Figure 48. It is integral with the gas  
valve and should be set to the ON position.  
B. Electronic Wiring (See Figure 45) –  
Note: The electronic appliance must be con-  
nected to the main power supply.  
CAUTION  
Step5.WIRING-OPTIONALFORCEDAIR  
BLOWER KIT  
Do not connect the optional wall  
switch for burner operation to a  
120 Volt AC power supply.  
The junction box is located on the right side of  
theappliance. Itcontainsafactoryinstalledand  
wired outlet box (duplex receptacle). Also, an  
optionaleld-providedjunctionboxwithrecep-  
tacle may be installed at the front of the control  
compartment on either side of the cabinet. See  
Figure 44. It will be held in place by a conduit  
fitting and locknut (field-provided).  
FBK-100, FBK-200 and FBK250 Kits  
(See Figures 44 & 45) -  
A. SIT Millivolt Wiring  
(See Figure 43) –  
An electrical outlet box (receptacle) is factory  
-provided for the installation of the FBK-100,  
FBK-200 and FBK-250 forced air blower kits.  
(An optional field-provided outletbox/J-Box  
may also be used. Electrical power must be  
connectedtoeitherofthesereceptaclesinorder  
to operate these blowers. Install the blower  
kits according to the installation instructions  
provided with the kits.  
1. Select any of the following optional controls:  
appliance-mounted (rocker switch) or wall-  
mounted switch, wall thermostat, or the  
standard or deluxe remote control kits. If ap-  
pliance-mounted ON/OFF control is selected  
mount it in the gas valve mounting bracket.  
2. If wall-mounted ON/OFF control or ther-  
mostat is selected mount it in a convenient  
location on a wall near the fireplace.  
1. Routea3-wire120Vac60Hz1phpowersupply  
to the appliance junction box.  
2. If the factory-provided outlet/junction box at  
the right rear of the fireplace is being used,  
remove the outlet box from the junction box  
by removing two screws.  
Optional J-Box/Outlet Box  
(Left Side Shown)  
See Figure 13 on Page  
11 for Optional Electrical  
Inlet Knockout Location  
Thermopile  
* Optional  
*
*Field-Provided  
Junction Box  
and Duplex  
*
Twist wires together to operate unit solely  
by manipulating the gas valve control  
knob; or connect wires to optional control  
switch (wall switch, remote control or  
wall thermostat to operate unit.  
Schematic  
Representation  
Only  
Control Switch  
Receptacle  
*Narrow (2-1/8" Wide)  
J-Box Required  
Field Wired  
* Optional Kits Installed - ON/OFF wall switch,  
unit mounted burner ON/OFF switch, wall  
thermostat or remote control receiver.  
Factory  
Wired  
Figure 44  
Note: If any of the original wire as supplied must be replaced,  
it must be replaced with Type AWM 105 C - 18 gage wire.  
SIT Millivolt Wiring Diagram  
Figure 43-  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
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Gas Flex Line Connector  
Plug blower  
into this  
receptacle  
Gas  
3/8" NPT x  
Flare Fitting  
Green  
1/2" x 3/8" Flare  
Valve  
White  
Black  
Ground - Green  
Neutral - White  
120 VAC - Black  
Shut-off Valve  
Junction Box  
Blower  
3/8" Flex Tubing  
3"  
Min  
*Sediment  
Trap  
* Wall-mounted  
ON/ OFF Blower  
Switch or Variable  
Speed Control Switch.  
Gas  
1/2" x 3/8"  
Ground  
Stub  
Reducer  
Tab  
Broken  
3/8" Nipple  
Tab Intact  
3/8" Union  
Red  
3/8" Close Nipple  
J-BOX WIRING FOR  
WALL SWITCH  
BLOWER CONTROL  
Green  
Ground  
Screw  
Neutral  
Hot  
3/8" Shut-off Valve  
Side of  
Side of  
Receptacle  
Receptacle  
*A Sediment Trap is recommended to prevent moisture  
and debris in gas line from damaging the valve.  
View A  
Note:The gas supply line must be installed in accor-  
dance with building codes by a qualified installer  
approved and/or licensed as requed by the locality.  
In the Commonwealth of Massachusetts, installa-  
tion must be performed by a licensed plumber or  
gas fitter.  
J-Box Wiring when  
using unit mounted  
relay module.  
Relay Module C/W FBK-250 only. Plug blower  
into J-Box receptacle for FBK-100 or FBK-200  
application. See View A for J-Box wiring.  
BK  
W
G
Optional Blower  
Figure 46 - GAS CONNECTION  
Junction Box  
*OFF/ON Switch  
(Integral with  
Gas Valve)  
Pilot Burner  
Assembly  
Step 6. CONNECTING GAS LINE  
Make gas line connections. All codes require a  
shut-offvalvemountedinthesupplyline.Figure  
46 illustrates two methods for connecting the  
gas supply. The flex-line method is acceptable  
in the U.S., however, Canadian requirements  
vary depending on locality. Installation must  
be in compliance with local codes.  
Honeywell  
Electronic  
Gas  
Valve  
Igniter  
*
Leave the OFF/ON switch, which is  
Connector  
integral with the gas valve, in the ON  
position.  
GROUND  
Transformer  
** Optional Control Switches: Wall  
Switch, Wall Thermostat or Remote  
Control Receiver.  
BL  
BL  
These appliances are equipped with a gas flex  
line for use (where permitted) in connecting  
the appliance to the gas line. A gas flex line  
is provided to aid in attaching the direct vent  
appliance to the gas supply. The gas flex line  
can only be used where local codes permit. See  
Figure 46 for flex line description. The flex line  
is rated for both natural gas and propane gas.  
A manual shut off valve is also provided with  
the flex line.  
BL  
BK  
R
24 V  
120 VAC  
Primary  
Secondary  
Notes:  
BK  
1. If any of the original wire as supplied  
must be replaced, use Type AWM 105°C  
- 18 gage wire ONLY.  
2. 120 VAC, 60 Hz - Less than 3 Amps.  
Caution: label all wires prior to  
disconnection when servicing controls.  
Wiring errors can cause improper and  
dangerous operation.  
BK = BLACK BL = BLUE  
BK  
Optional Control Switch  
R = RED  
G = GREEN  
W = WHITE  
W
Field Wired  
Factory  
Wired  
Schematic Representation Only  
The incoming gas line should be piped into  
the valve compartment and connected (see  
Figures 47 & 48). The millivolt control  
valve has a 3/8" (10 mm) NPT thread  
inlet port. The electronic control valve  
has a 1/2" (13 mm) NPT thread inlet port  
and is fitted with a 1/2" x 3/8" (13 mm x  
10mm) NPT fitting.  
Electronic Wiring Diagram (Honeywell) Showing Blower Wiring for Optional FBK-100, FBK-200 & FBK-250 Kits  
Figure 45  
CAUTION  
Secure all joints tightly using appropriate  
toolsandsealingcompounds(ensurepropane  
resistant compounds are used in propane  
applications).  
Ground supply lead must be connected to the wire attached to the green  
ground screw located on the outlet box. See Figure 47. Failure to do so  
will result in a potential safety hazard. The appliance must be electrically  
grounded in accordance with local codes or, in the absence of local codes,  
the National Electrical Code, ANSI/NFPA 70-latest edition. (In Canada, the  
current CSA C22-1 Canadian Electrical Code).  
Optional: Seal around the gas line to prevent  
cold air leakage.  
26  
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The top 3/8" (10 mm) at the pilot generator  
(thermopile) and the top 1/8" min (tip) of the  
quickdropoutthermocoupleshouldbeengulfed  
in the pilot flame. The flame should project 1"  
(25 mm) beyond the hood at all three ports  
(See Figure 49).  
TEST ALL CONNECTIONS FOR GAS LEAKS  
(FACTORY AND FIELD):  
On millivolt systems, the piezo igniter, HI/LO  
flame adjustment knob, and pilot and main  
gas OFF/ON control knob are located below  
the glass panel enclosure. The gas valve for  
electronic systems is also located below the  
glass enclosure panel. See Figure 48.  
WARNING  
Never use an open flame to  
check for leaks.  
To light the burner; rotate the gas valve control  
knob counterclockwise to the “ON” position  
then turn “ON” the OFF/ON switch (installed  
at Step 4).  
Reinstalling Control Compartment Door:  
To reinstall, insert the hook catches on each  
side of the door into the corresponding slots  
in the control compartment opening, then  
gently push forward and slide down until it  
locks in place.  
Turn on gas supply and test for gas leaks using a  
gas leak test solution (also referred to as bubble  
leaksolution). Note:Usingasoapywatersolution  
(50% dish soap, 50% water) is an effective leak  
test solution but it is not recommended, because  
the soap residue that is left on the pipes/fittings  
can result in corrosion over time.  
Observe the individual tongues of flame on  
the burner. Make sure all ports are open and  
producing flame evenly across the burner. If  
any ports are blocked, or partially blocked,  
clean out the ports.  
Step 7. CHECKING APPLIANCE OPERA-  
TION  
A. Light the appliance (refer to the lighting  
instructions label in control compartment or  
homeowner's manual).  
With the gas line installed, run initial system  
checkout before closing up the front of the  
appliance. Followthepilotlightinginstructions  
provided in the Homeowner's Care and Opera-  
tion Instructions. For piezo igniter location see  
Figure 48 (millivolt appliances only).  
Replace logs if removed for pilot inspection.  
B. Brush all joints and connections with the gas  
leak test solution to check for leaks. If bubbles  
are formed, or gas odor is detected, turn the  
gas control knob (off/pilot/on) to the “OFF”  
position. Either tighten or refasten the leaking  
connection, then retest as described above.  
C. Whenthegaslinesaretestedandleakfreebe  
sure to rinse off the leak testing solution,  
Sit Millivolt Pilot Assembly  
Proper Pilot Flame Appearance  
Igniter Rod  
Hood  
Note:The(pull-out)Lightinginstructionslabel  
can be found in the control compartment  
(see Figure 48).  
Thermocouple  
3/8" Min.  
(9 mm)  
When first lighting the appliance, it will take  
a few minutes for the line to purge itself of  
air. Once purging is complete, the pilot and  
burner will light and operate as indicated in  
the instruction manual. Subsequent lightings  
of the appliance will not require such purging.  
Inspect the pilot flame.  
CONTROL COMPARTMENT ACCESS /  
LOUVER PANEL INSTRUCTIONS  
(Ref. Figures 47 & 48)  
Pilot  
NOTE: The top louvered panel and the bottom  
louvered control panel door remove and install  
the same way as follows:  
Nozzels  
Thermopile  
Figure 49  
Thegascontrolscanbefoundbehindthecontrol  
compartment access door.  
SIT Millivolt Appliance Checkout  
To light the burner; turn “ON” the remote wall  
switch and rotate the gas valve control knob  
counterclockwise to the “ON” position.  
Removing Control Compartment Door:  
Openthedoorby gentlyliftingitupwarduntilthe  
hook catches on boths sides clear the locating  
slots. Then pull door out to remove.  
The pilot flame should be steady, not lifting  
or floating. Flame should be blue in color with  
traces of orange at the outer edge.  
D. Turn on burner then observe the individual  
tongues of flame on the burner. Make sure  
all ports are open and producing flame evenly  
across the burner. If any ports are blocked, or  
partially blocked, clean out the ports.  
Control Compartment  
OFF/PILOT/ON (gas control knob)  
Glass Door is Above  
Control Compartment  
HI/LO (flame height  
control knob)  
Lift the Lower Control  
Compartment Door  
up and pull out to  
remove.  
Gas Flex Line  
OPENING CONTROL  
COMPARTMENT DOOR  
Optional OFF/ON  
Switch Can be  
Installed Here  
Latch for  
Glass Door  
Hook Catch  
Out  
Gas Valve  
Piezo Igniter  
Control Valve  
'Pull-out'lightinginstructionslabel  
is located in control compartment  
Up  
Lower Control  
Compartment Door  
Figure 48  
Figure 47  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
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Electronic Appliance Checkout  
WARNING  
WARNING  
Tolighttheburner,turnONtheoptionalremote  
wall switch and turn the gas control switch to  
the “ON” position. Ensure the Igniter lights the  
pilot. The pilot flame should engulf the flame  
rod as shown in Figure 50.  
DO NOT attempt to install the  
logs until the appliance instal-  
lation has been completed, the  
gas line connected and tested  
for leaks and the initial burner  
operation has been checked  
out.  
This appliance is not designed  
to burn wood. Any attempt to  
do so could cause irrep arable  
damage to appliance and prove  
hazardous to your safety.  
Electronic Pilot Assembly  
Proper Pilot Flame Appearance  
WARNING  
3/8" to 1/2"  
(9 -13 mm)  
Proper Flame  
Adjustment  
Iflogsarenotinstalledaccording  
to the log installation instruc-  
tions, flame impingement and  
improper combustion could  
occur and result in soot and/or  
excessive production of carbon  
monoxide (CO), a colorless,  
odorless, toxic gas.  
WARNING  
Pilot  
Nozzels  
The size and position of the log  
set is critical to achieve a safe,  
reliable and attractive flame  
pattern. Any attempt to use a  
different log set in the fireplace  
will void the warranty and will  
result in incomplete combus-  
tion, sooting, and poor flame  
quality.  
Ground  
Electrode  
Flame Rod  
Hot Surface  
Igniter  
Figure 50  
Glowing Embers  
Step 8. INSTALL VOLCANIC STONE,  
GLOWING EMBERS AND LOGS  
Separate into Quarter  
Size (separate) Pieces  
REFERENCE  
1. Remove the front glass enclosure panel  
(see Removing Glass Enclosure Panels on  
Page 30).  
2. Carefully remove the log set box from  
the firebox. Next, remove embers and  
volcanic stone from the control compart-  
ment. Handle logs carefully to prevent  
breakage.  
3. Install Decorative Volcanic stone - Mound  
up a portion of the volcanic stone in front  
of the burner in a pleasing pattern.  
4. Placement of Glowing Embers -  
Separatethe Embers(rockwool)intopieces  
about the size of a quarter (see Figure 51).  
Keep the pieces fluffed up, not matted.  
Distribute these pieces over the surface of  
the burner, as shown in Figure 52. Do not  
use more than is necessary. Ensure that the  
main burner slots remain uncovered by the  
ember material.  
Firebox Accessories / Parts  
Cat. No.  
88L53  
Model No.  
Description  
Bag of Glowing Embers  
(1 oz. rockwool)  
FGE  
Bag of Glowing  
Embers (rockwool)  
Bag of Decorative  
Volcanic stone  
80L42  
FDVS  
Figure 51  
Table 13  
Note: This appliance is provided with enough  
Glowing Embers for several applications, do  
not use all that is in a new bag at one time. For  
bestglowingeffect,replacetheembermaterial  
annually.  
5. Placement of Logs -  
The logs have locating notches which cor-  
respond to locating brackets and holes which  
correspond to locating pins to help ensure  
that they are properly positioned. Proper log  
placement is critical to prevent sooting.  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
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Log Installation Instructions (refer to Figure 52)  
2. (See photo #2) Place the rear log (A) as shown. Position the 2  
notches on the bottom of the log over the 2 corresponding locating  
brackets.  
3. (See photo #3) Place the right front log (B) as shown. The right  
locating pin on burner fits into corresponding hole on the bottom of  
log. Position the notch on the bottom of the log over the right front  
locating bracket (the bracket is shown in photo #1).  
4. (See photo #4) Place the left front log (C) as shown. The left locat-  
ing pin on burner fits into corresponding hole on the bottom of log.  
Position the notch on the bottom of the log over the left front locating  
bracket (the bracket is shown in photo #1).  
Carefully position the ceramic fiber logs into the firebox as shown  
here. Logs should be placed in the order shown and per the following  
instructions.  
1. (See photo #1) Place embers on the front and sides of the burner.  
Do NOT place embers over any of the slots on the burner. Place the  
volcanic stone in front of the burner per instructions in Figures 52  
(also see Placement of Glowing Embers & Install Decorative Volcanic  
Stone on Page 28).  
MODEL SDDV-35 & SDDV-40  
Log Placement Instructions  
A
SDDV-35LogSetShown.  
LOG SET  
The 35 & 40 log sets are  
SSDV-35 Cat. # H5044  
,
SSDV-40 Cat. # H5045  
the same except for  
width of rear log.  
* Item  
Description  
Log, Rear  
Log, Right  
Log, Left  
A
B
C
C
B
* Item "letters" above correspond to photos  
Firebox Accessories / Parts  
Bag of Glowing  
Separate into  
Quarter Size  
(separate) Pieces  
Cat. No.  
88L53  
Model No.  
Description  
Embers (rockwool)  
Bag of Glowing Embers  
(1 oz. rockwool)  
FGE  
Install the Embers, Volcanic  
stone and Logs in the order  
shown here (1 through 4) and  
per the instructions on this page.  
Bag of Decorative  
Volcanic stone  
80L42  
FDVS  
Place Embers & Volcanic stone as Shown.  
Do NOT place embers over slots on burner.  
3
1
Place right  
front log (B)  
as shown  
Rear log locating  
brackets  
B
Front left log  
locating bracket  
Embers  
A
Front right log  
locating bracket  
Locating Pins  
Volcanic  
stone  
locating  
bracket  
Pin on burner fits into hole on log bottom  
The 2 notches on the bottom of log (A) rest on the  
locating brackets. Push rear log against back wall.  
4
2
C
A
A
B
Locating Brackets  
Pin on burner fits into hole on log bottom  
locating  
bracket  
Figure 52  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
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Air Shutter Adjustment Guidelines  
Step 9. INSTALLING THE GLASS DOOR  
Installing Glass Enclosure Panels  
(see Figure 53)  
• If there is smoke or soot present, first check  
the log set positioning to ensure that the  
flames are not impinging on any of the logs.  
If the log set is properly positioned and a  
sooting condition still exists, then the air  
shutter opening should be increased.  
• Themoreoffsetsintheventsystem,thelarger  
the air shutter opening will need to be.  
• An appliance operated with the air shutter  
openedtoofar, mayhaveamesthatappear  
blue and transparent. These weak, blue and  
transparent flames are termed anemic.  
• Propane models may exhibit flames which  
candle or appear stringy. If this is present  
and persists, adjust the air shutter to a more  
closed position, then operate the appliance  
for a few more minutes to ensure that the  
flame normalizes and the flames do not  
appear sooty.  
1.Visuallyinspectthegasketonthebacksideofthe  
glass panel. The gasket surface must be clean,  
free of irregularities and seated firmly.  
WARNING  
Donotoperateappliancewiththe  
glass front removed, cracked or  
broken. Replacementoftheglass  
should be done by a licensed or  
qualified service technician.  
2. Position the glass enclosure panel in front of  
the firebox opening at a 45 degree angle and  
engage the top flange over the lip at the top  
of the firebox opening. See Figure 53.  
3. Swing the glass enclosure panel down and  
back. Ensure the gasket seats evenly as the  
panel draws shut. Engage the Vee-flange at  
the bottom of the panel with the latches and  
close the latches to secure the panel.  
4. Reinstall top louver assembly and control  
compartment door see installation instruc-  
tions on Page 27, Reinstalling Control  
Compartment Door).  
WARNING  
Do not attempt to substitute the  
materials used on this door, or  
replace cracked or broken glass  
with any materials other than  
those provided by the appliance  
manufacturer.  
Top Flange on  
Glass Door  
The following chart is provided to aid you in  
achievingthecorrectairshutteradjustmentfor  
your installation.  
Glass Door  
WARNING  
Air Shutter Adjustment Guidelines:  
Handle this glass with extreme  
care! Temperedglassissuscep-  
tible to damage – do not scratch  
or handle roughly while rein-  
stalling the glass door frame.  
Amount of  
Primary Air  
Flame  
Color  
Air Shutter  
Adjustment  
If air shutter is  
closed too far  
Flame will Air shutter  
be orange gap should be  
increased  
If air shutter is  
open too far  
Flame will Air shutter  
be blue gap should be  
decreased  
WARNING  
The glass door of this appli-  
ance must only be replaced as  
a complete unit as provided by  
themanufacturer. Donotattempt  
to replace broken, cracked or  
chipped glass separately.  
Bottom Vee-flange  
WARNING  
Airshutteradjustmentshouldonly  
beperformedbyaqualifiedprofes-  
sional service technician.  
Glass Door  
Firebox Floor  
Glass Door Latch  
Figure 53 - INSTALLING GLASS DOOR  
Step 10. BURNER ADJUSTMENTS  
WARNING  
Do not attempt to touch the front  
enclosure glass with your hands  
while the fireplace is in use.  
Burner Flame Appearance and Sooting  
Proper flame appearance is a flame which is  
blueatthebaseandbecomesyellowish-orange  
in the body of the flame. When the appliance  
is first lit, the entire flame may be blue and will  
graduallyturnyellowish-orangeduringtherst  
15 minutes of operation. If after a short period  
the flame stays lowered blue, or if the flame is  
orange with evidence of sooting (black tip), the  
air shutter opening may need to be adjusted.  
WARNING  
Ensure front glass panels are in  
place and sealed during adjust-  
ment.  
Removing Glass Enclosure Panels  
(see Figure 53)  
1. Remove the top louver assembly by lifting it  
up and pulling it out.  
CAUTION  
2. Remove the control compartment access  
door (see removal instructions on Page 27  
- Removing Control Compartment Door).  
3. Locate the two (2) latches at the top of the  
control compartment. To disengage the two  
latches from the bottom vee-flange of the  
glassenclosurepanel, reachforthehandles  
located towards the back of the latches and  
pull the handles down toward the front of  
the appliance.  
Carbonwillbeproducediftheair  
shutter is closed too much. Any  
damageduetocarboningresult-  
ing from improperly setting the  
air shutter is not covered under  
the warranty.  
Iftheairshutteropeningsclosedtoofar,sooting  
maydevelop.Sootingisindicatedbyblackpuffs  
developingatthetipsofverylongorangeames.  
Sootingresultsinblackdepositsformingonthe  
logs, appliance inside surfaces and on exterior  
surfacesadjacenttotheventtermination. Soot-  
ing is caused by incomplete combustion in the  
flames and lack of combustion air entering the  
air shutter opening. To achieve a warm yellow-  
ish-orangeamewithanorangebodythatdoes  
not soot, the shutter opening must be adjusted  
between these two extremes.  
4. Swing the bottom of the door out and raise  
it slightly to lift the top flange of the door  
frame away from the appliance.  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
30  
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Burner Air Shutter Adjustment Procedure  
Burner  
Venturi  
Tube  
CAUTION  
Air Shutter  
Opening  
Theairshutterdoorandnearbyappliancesurfacesare  
hot. Exercise caution to avoid injury while adjusting  
flame appearance.  
Air  
Shutter  
Door  
Decrease  
Increase  
Air Shutter  
Opening  
Air Shutter  
Opening  
Ref. Air shutter Patent:  
U.S. Pat. 5,553,603  
Burner Air Shutter Adjustment Procedure  
1. Locate adjustment rod and adjust air shutter to the standard setting  
as shown in Figure 55 (adjustment rod is located in the lower control  
compartment).To adjust the flame, move the adjustment rod back or  
forward to increase or reduce the air shutter opening, respectively.  
Orifice  
2. Light appliance (follow lighting procedure on lighting label in control  
Air Shutter  
Adjusting  
Arm  
compartment or see homeowners manual).  
3. Allow the burner to operate for at least 15 minutes while observing the  
flame continuously to ensure that the proper flame appearance has  
beenachieved(seeFigure54). Ifthefollowingconditionsarepresent,  
adjust accordingly.  
Main Burner Factory Air Shutter  
Opening Setting - Inches (millimeter)  
Model  
SDDV-35  
SDDV-40  
Natural Gas  
1/8" (3.2 mm)  
1/8" (3.2 mm)  
Propane Gas  
• Ifameappearsweakorsooty, adjust airshutter, incrementally,  
to a more open position until the proper flame appearance is  
achieved.  
3/8" (9.5 mm)  
3/8" (9.5 mm)  
Figure 55 - Burner Air Shutter Adjustment  
• If flame stays lowered blue, adjust air shutter, incrementally,  
to a more closed position until the proper flame appearance is  
achieved.  
Step 11. HOOD INSTALLATION  
(Refer to Figure 56)  
4. Leave the control knob (off/pilot/on) in the ON position and the burner  
All of these appliances must have hoods installed prior to operating.  
OFF/ON switch OFF (& remote switches, if applicable).  
Slide the hood into the slots on the lower edge of the cabinet top.  
5. When satisfied that the burner flame appearance is normal, re-install  
the lower control compartment door then proceed to finish the instal-  
lation.  
FINISHING REQUIREMENTS - Wall Details  
Complete finished interior wall. To install the appliance facing flush  
with the finished wall, position framework to accommodate the thick-  
ness of the finished wall (Figure 56).  
Burner Flame Appearance Models -  
SDDV-35 & SDDV-40 Series  
See Page 6 for Cold Climate Insulation  
and Page 9 for Clearances  
Combustible  
Wall Framing  
This Area Must  
3"  
Remain Clear of  
Combustible  
Materials  
(76 mm)  
Combustible Finished  
1 in. Min.  
(25 mm)  
Wall Materials  
Top Spacers  
Combustible material may  
touch the appliance top  
Combustible materials  
not allowed below this  
point on the face of the  
appliance.  
Top of Appliance  
Louvers  
Top of Door Frame  
Hood must be installed  
as shown.  
Figure 54  
Figure 56  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
31  
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INSTALLATION ACCESSORIES  
Item  
Cat. No.  
Model  
Description  
1
1
H1968  
SV4.5HT-2  
Horizontal Square Termination With Firestop / spacer  
(H2246) & Adapter (74L61)  
2a  
2b  
2b  
2b  
3
H2152  
H4687  
H4716  
H4717  
77L70  
77L71  
77L72  
77L73  
77L74  
77L75  
77L76  
77L77  
SV4.5CGV-1  
SV4.5CTS  
SV4.5CTS-B  
SV4.5CTS-TC  
SV4.5L6  
Vertical Termination Cap  
Chase Top Termination Square  
Chase Top Termination Square, Black  
Chase Top Termination Square, Terra Cotta  
6 Inch (152 mm) Vent Section  
12 Inch (305 mm) Vent Section  
24 Inch (610 mm) Vent Section  
36 Inch (914 mm) Vent Section  
48 Inch (1219 mm) Vent Section  
Telescopic Section (1-1/2" to 7-1/2" effective length)  
45 Degree Elbow  
3
SV4.5L12  
SV4.5L24  
SV4.5L36  
SV4.5L48  
SV4.5LA  
3
3
3
3
3
4
SV4.5E45  
SV4.5E90  
5
90 Degree Elbow  
4
5
The following flashings come packaged with a storm collar:  
6
6
6
77L78  
77L79  
77L80  
SV4.5F  
Flat Roof Flashing  
SV4.5FA  
SV4.5FB  
1/2 to 7/12 Adjustable Flashing  
7/2 to 12/12 Adjustable Flashing  
6
7
8
77L81  
H2246  
SV4.5SC6  
SV4.5HF  
Storm Collar (6 per box)  
Firestop / Spacer-Horizontal (3-1-1 spacing), 10 Pack  
8
H2247  
96K93  
96K94  
96K92  
17M52  
SV4.5VF  
Firestop / Spacer-Vertical (1-1-1 spacing), 10 Pack  
Support Strap  
9
SV4.5SU  
SV4.5RSA  
SV4.5SP  
10  
11  
12  
Attic Insulation Shield  
Support Plate  
7
SV4.5HGS-1  
Termination Guard, Square (1 pack)  
(for square termination)  
12  
13  
17M53  
87L02  
SV4.5HGS-12  
SV4.5HGS  
Termination Guard, Square (12 pack)  
(for square termination)  
Termination Guard for Square Termination (Deluxe)  
(1 pack) (for square termination)  
12  
11  
8
10  
9
Ref. 750,109M  
13  
2a  
2b  
Ref. 750,055M  
Ref. 750,207M  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
32  
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Item Cat. No.  
Model  
Description  
19  
18  
18  
18  
18  
18  
18  
19  
H1969  
77L87  
77L88  
77L89  
77L90  
77L91  
56L74  
SF4.5HT-2 Horizontal Square Termination (without flex)  
SFKIT12S Flex Square Term. (with 12 inch [305 mm] * compressed flex)  
SFKIT18S Flex Square Term. (with 18 inch [457 mm] * compressed flex)  
SFKIT24S Flex Square Term. (with 24 inch [610 mm] * compressed flex)  
SFKIT36S Flex Square Term. (with 36 inch [914 mm] * compressed flex)  
SFKIT48S Flex Square Term. (with 48 inch [1219 mm] * compressed flex)  
SFVT30  
VerticalTerminationforex (flatto6/12)withexadapter, sectionofrigidvent,  
roof support collar assembly, roof flashing and storm collar.  
19  
56L75  
SFVT45  
Vertical Termination for flex (6/12 to 12/12) with flex adapter, section of rigid  
vent, roof support collar assembly, roof flashing and storm collar.  
*20  
*20  
22  
22  
23  
23  
24  
24  
25  
26  
26  
26  
8
60L10  
98K03  
10K81  
89L40  
91L66  
91L67  
SF-18  
SF-12  
18 ft. (5.49 m) * compressed flex  
12 ft. (3.66 m) * compressed flex  
SFMP  
Mill-Pac, Black, High Temperature Sealant  
Mill-Pac, Black, High Temperature Sealant - Bulk 12 pack  
Gear Clamp 4.5 in. (114 mm) for flex (6 pieces)  
Gear Clamp 7.5 in. (190.5 mm) for flex (6 pieces)  
SFMP-12  
SF-GC4-6  
SF-GC7-6  
99L02 SV4.5HRK14 Horizontal Riser Kit, 14"  
99L03 SV4.5HRK36 Horizontal Riser Kit, 36"  
H1988  
H1985  
H1987  
H1986  
H2248  
H2249  
CTSA-33  
CTSO-33  
CTSO-44  
CTSO-46  
SF4.5HF  
SF4.5VF  
Chase Top Shroud Kit, Arch Top 3 X 3  
Chase Top Shroud Kit, Open Top 3 X 3  
Chase Top Shroud Kit, Open Top 4 X 4  
Chase Top Shroud Kit, Open Top 4 X 6  
Firestop / Spacer - Horizontal (flex) (3-1-1 spacing), 10 Pack  
Firestop / Spacer - Vertical (1-1-1 spacing), 10 Pack  
8
1
typ.  
CTSO-46 Shroud  
26  
E
for double  
All compressed flex vents can be  
expanded up to two times.  
terminations  
*
25  
2a  
2b  
C
2a  
2b  
2b  
18  
2a  
D
A
2a  
B
B
A
Ref. Form #750,193M  
D
C
C
1
typ.  
Ref. Form #750,194M  
typ.  
2
Closed Top Shroud Termination Kits  
Inches (millimeters)  
E
D
Model  
A
B
C
D
34"  
5"  
34"  
34"  
CTSA-33  
B
(864) (127) (864) (864)  
A
CTSO-33/44 Shrouds  
20  
23  
for Single terminations  
Open Top Shroud Kits  
Inches (millimeters)  
24  
Model  
A
B
C
D
*E  
37-5/8 37-5/8 7-1/2 24-1/2  
(955) (955) (191) (622)  
3
CTSO-33  
(76)  
22  
S
e
a
l
a
n
t
48-5/8 48-5/8 7-1/2 24-1/2  
(1235) (1235) (191) (622)  
3
(76)  
CTSO-44  
CTSO-46  
48-5/8 73 1/4 7-1/2 24-1/2  
(1235) (1860) (191) (622)  
3
(76)  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
33  
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GAS CONVERSION KITS  
WARNING  
Electronic HONEYWELL Systems  
Natural Gas To Propane Gas  
Conversion Kits  
Millivolt SIT Systems  
Natural Gas To Propane Gas  
Conversion Kits  
This conversion kit shall be installed  
by a qualified service agency in  
accordance with the manufacturer's  
instructions and all applicable codes  
and requirements of the authorized  
havingjurisdiction. Iftheinformation  
in these instructions is not followed  
exactly, a fire, explosion or produc-  
tion of carbon monoxide may result  
causing property damage, personal  
injury or loss of life. The installation  
is not proper and complete until the  
operation of the converted appliance  
is checked as specified in the owner  
instructionssuppliedwiththekit.The  
qualified service agency performing  
thisinstallationassumesresponsibil-  
ity for this conversion.  
Models  
SDDV-35  
SDDV-40  
Cat. No.  
85L76  
Models  
SDDV-35  
SDDV-40  
Cat. No.  
85L62  
85L77  
85L63  
Electronic HONEYWELL Systems  
Propane Gas To Natural Gas  
Conversion Kits  
Millivolt SIT Systems  
Propane to Natural Gas  
Conversion Kits  
Models  
SDDV-35  
SDDV-40  
Cat. No.  
85L83  
Models  
Cat. No.  
85L69  
SDDV-35  
SDDV-40  
85L84  
85L70  
IMPORTANT  
CANADA  
The conversion shall be carried out  
inaccordancewiththerequirements  
of the provincial authorities having  
jurisdiction and in accordance with  
therequirementsoftheCAN1-B149.1  
And B149.2 Installation code.  
IMPORTANT  
LE CANADA SEULEMENT  
La conversion devra être effectuée  
conformément aux recommanda-  
tions des autorités provinciales  
ayant juridiction et conformément  
auxexigencesducoded'installation  
CAN1-B149.1 ET.2.  
AVERTISSEMENT  
Cet équipement de conversion sera  
installé par une agence qualifiée de  
service conformément aux instruc-  
tions du fabricant et toutes exigences  
et codes applicables de l'autorisés  
avoir la juridiction. Si l'information  
danscetteinstructionn'estpassuivie  
exactement,unfeu,explosionoupro-  
ductiondeprotoxydedecarbonepeut  
résulter le dommages causer de pro-  
priété, perteoublessurepersonnelle  
de vie. L'agence qualifiée de service  
estesponsabledel'installationpropre  
de cet équipment. L'installation  
n'est pas propre et compléte jusqu'à  
l'opération de l'appareil converti est  
chéque suivant les critères établis  
dans les instructions de propriétaire  
provisionnées avec l'équipement.  
Gas conversion kits are available to adapt your appliance from the use of one type of gas to  
the use of another. These kits contain all the necessary components needed to complete the  
task including labeling that must be affixed to ensure safe operation.  
Kit part numbers are listed here and the following steps detail the conversion procedure.  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
34  
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Step 1. Turn off the gas supply to the appli-  
ance.  
Millivolt Appliances  
Electronic Appliances  
Step 7. Honeywell Electronic Valves - See  
Figure 60 and the instructions pro-  
vided with the kit. Remove the slotted  
capscrew,o-ring,pressure-regulating  
adjusting screw and spring. Retain all  
partsforpossiblelateruse. Installnew  
components from the kit. Black cap  
and red spring for propane gas units.  
Silvercapandstainlesssteelspringfor  
natural gas units. Before installing the  
cap,attachmanometertothemanifold  
side pressure test fitting and adjust  
screw until pressure reads 3.5 inches  
water column (0.87 kPa) for natural  
gas, and 10.0 inches water column  
(2.49 kPa) for propane gas.  
Step 4. SIT Systems - Refer to Figure 58  
on Page 35 and the instructions  
provided with the kit. Using a Torx  
T20 or a flat screwdrive, remove and  
discard the three pressure regula-  
tor mounting screws. Remove the  
pressure regulator, spring, poppet,  
diaphragm and bushing. Discard all  
removed components. Ensure the  
rubber gasket installed on the back of  
the replacement pressure regulator  
is properly positioned and install the  
new pressure regulator using the new  
screws supplied with the kit. Tighten  
screws to 25 In. lb. torque.  
Removethecontrolcompartmentdoor  
(see Figure 47on Page 27).  
Remove the front glass doorframe  
from the appliance (see Figure 53on  
Page 30).  
Step 2. Carefully remove the logs. Exercise  
care so as not to break the logs.  
Step 3. Refer to Figure 57.  
.25  
.25  
.25  
a. Above the burner, remove the two  
baffle securing screws. Remove the  
baffle.  
b. Remove the two screws securing  
the trapezoidal plate to the burner.  
Remove the plate.  
SIT Millivolt Gas Valve  
Inlet Pressure Test Port  
c. Remove the burner assembly with  
attached venturi tube.  
Pressure  
Regulator  
Manifold  
Pressure  
Test Port  
Burner Assembly  
Remove  
These  
Components  
Slotted  
Cap  
Spring  
Figure 58  
Adjusting  
Screw  
Step 5. Attach manometer to the manifold  
side pressure test fitting and verify  
manifold pressure reads 3.5 inches  
water column (0.87 kPa) for natural  
gas, and 10.0 inches water column  
(2.49 kPa) for propane gas.  
Figure 60  
Gas Valve  
Assembly  
See Figure 62 and replace the pilot  
orifice as follows: Remove the igniter  
assembly retainer clip, and carefully  
remove the igniter assembly.  
Step 6. RefertoFigure59 andremovethepilot  
hood assembly to access the hexed  
pilot orifice. Remove and replace the  
orifice with the one provided with the  
kit.  
Exercise extreme care to prevent  
damage to or breakage of the igniter  
assembly. Remove the screw secur-  
ing the pilot assembly to its mounting  
bracket. Back off the flare nut at the  
end of the pilot gas line to free the pilot  
assembly from the gas line. Remove  
the pilot orifice and replace it with the  
one provided with the conversion kit.  
Reinstall the pilot assembly by revers-  
ing the steps detailed here.  
Orifice  
Pilot for SIT Millivolt  
Gas Valve  
Figure 57  
Whenreinstallingtheigniterassembly,  
use extreme care to prevent damage  
and breakage. Do not apply any le-  
verage to the igniter assembly while  
restoringtheretainercliptoitsoriginal  
position.  
Pilot  
Orifice  
Figure 59  
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.  
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All Models  
Burner Orifice Sizes  
Elevation 0-4500 feet ( 0-1372 meters)  
Step 8. (Refer to Figure 57 on Page 35)  
Natural  
Propane  
Model  
Series  
Gas  
Gas  
a. Remove the orifice from the manifold  
and replace it with the one provided in  
the kit. See Table 14 for orifice sizes  
fornaturalandpropanemodels.Figure  
61 illustrates the orifice.  
drill size  
(inches)  
drill size (inches)  
#40 (.098")  
69L96 •  
#53 (.0595")  
39L10 •  
*
*
SDDV-35  
SDDV-40  
#36 (.1065")  
18L40 •  
#52 (.0635")  
*
*
LB-55874D •  
b. Retrievetheburnerandholdtheventuri  
tube abovetheorifice. Placetheshut-  
ter adjusting rod in the propane slot  
of the shutter arm (see Figure 55 on  
Page31). Settheburnerassemblyinto  
its position and secure the trapezoidal  
plate with the two screws previously  
removed.  
* Standard size installed at factory  
• Part /Cat. Number  
Figure 61 - Burner Orifice  
Table 14  
Pilot Assembly  
c. Reinstall the baffle with the two baffle  
securing screws.  
Pilot Orifice  
Step 9. Reassemble all removed components  
by reversing the procedures outlined  
in the preceding steps. Use pipe joint  
compound or Teflon tape on all pipe  
fittings before installing (ensure pro-  
pane resistant compounds are used in  
propane applications, do not use pipe  
joint compounds on flare fittings).  
Igniter Assembly  
Retaining Clip  
Flare Nut  
Step 10. Attachtheconversionlabelprovidedin  
theconversionkittotheratingplateon  
the appliance.  
Note: If the Igniter is damaged, a replacement kit is available - order Catalog Number 87L54.  
Figure 62  
Step 11.Turn on gas supply and test for gas  
leaks.  
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.  
LHP reserves the right to make changes at any time, without notice, in design, materials, specifications, prices and also to discontinue colors, styles and products. Consult your local distribu-  
tor for fireplace code information.  
Printed in U.S.A. © 2006 by LHP  
LHP  
P/N 700,041M REV. B 11/2006  
1110 West Taft Avenue • Orange, CA 92865  
36  
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