INSTALLATION
INSTRUCTIONS
DIRECT VENT
DT-400 & DR-400
VENTED GAS FIREPLACE HEATERS - DIRECT VENT MODELS
P/N 700,020M REV. M 11/2004
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
MODELS
This appliance may be installed in an aftermar-
ket permanently located, manufactured home
(USA only) or mobile home, where not prohib-
ited by local codes. 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.
Millivolt
Models
DT-400CMN DT-400CEN
DT-400CMP DT-400CEP
DR-400CMN DR-400CEN
DR-400CMP DR-400CEP
Electronic
Models
WARNING:IFTHEINFORMATIONINTHISMANUAL
IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLO-
SION MAY RESULT CAUSING PROPERTY DAM-
AGE, PERSONAL INJURY OR LOSS OF LIFE.
AVERTISSEMENT: ASSUREZ-VOUS DE BIEN SUIVRE
LESINSTRUCTIONSDONNÉDANSCETTENOTICEPOUR
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 flammable vapors or liquids in the vicin-
ity of this or any other appliance.
POURVOTRESÉCURITÉ: Nepasentreposerniutiliser
d'essencenid'autrevapeursouliquidesinflammables
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
• 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.
odeur de gaz:
• Ne pas tenter d'allumer d'appareil.
• Netouchezàaucuninterrupteur. Nepasvousservir
des téléphones se trouvant dans le batiment 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.
• Ifyourgassuppliercannotbereached, callthe
fire department.
Installation and service must be performed by a
qualified installer, service agency or the gas
supplier.
• Si vous ne pouvez rejoindre le fournisseur de gaz,
appelez le service dos incendies.
L'installationetservicedoitêtreexécutéparunqualifié
installeur,agencedeserviceoulefournisseurdegaz.
OTL Report No. 116-F-17-4
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Millivolt Models -
The millivolt appliances are manually controlled
andfeatureasparkignitor(piezo)thatallowsthe
appliance's pilot gas to be lit without the use of
matches or batteries. This system provides
continuedserviceintheeventofapoweroutage.
These appliances must be isolated from the gas
supplypipingsystem(byclosingtheirindividual
manualshut-offvalve)duringanypressuretest-
ing of the gas supply piping system at test
pressures equal to or less than¹⁄₂ psig (3.5 kPa).
Millivolt models come standard with the
manually-modulated gas valve; flame ap-
pearance and heat output can be con-
trolled at the gas valve. Input of millivolt
models is shown in the following table:
Donotusetheseappliancesifanyparthasbeen
under water. Immediately call a qualified, pro-
fessional service technician to inspect the ap-
pliance and to replace any parts of the control
system and any gas control which have been
under water.
These appliances and their individual shut-off
valves must be disconnected from the gas
supply piping system during any pressure test-
ing of that system at pressures in excess of ¹⁄₂
psig (3.5 kPa).
Millivolt Models with
Manually-Modulated Gas Valve
Natural and Propane Gas
Model Numbers
DT-400
Input rate (BTU/H)
13,500 to 17,500
DR-400
These appliances must not be connected to a
chimney or flue serving a separate solid fuel
burning appliance.
Ne pas se servir de cet appareil s'il a été plongé
dans l'eau, complètement ou en partie. Appeler
untechnicienqualifiépourinspecterl'appareilet
remplacertoutepartiedusystèmedecontrôleet
toute commande qui ont été plongés dans l'eau.
Electronic Models -
Electronic models have a fixed rate gas valve.
Input of electronic models is shown in the
following table:
Carbon Monoxide Poisoning: Early signs of
carbon monoxide poisoning are similar to
the flu with headaches, dizziness and/or
nausea. If you have these signs, obtain fresh
air immediately. Turn off the gas supply to
the appliance and have it serviced by a
qualified professional, as it may not be op-
erating correctly.
Electronic Models with Fixed-Rate
Gas Valve
This appliance may be installed in an af-
termarket permanently located, manufac-
tured home (USA only) or mobile home,
where not prohibited by local codes. This
appliance is only for use with the type of
gas indicated on the rating plate. This ap-
pliance is not convertible for use with
other gases, unless a certified kit is used.
Natural and Propane Gas
Model Numbers
DT-400
Input rate (BTU/H)
17,500
DR-400
WARNING: FAILURE TO COMPLY WITH
THEINSTALLATIONANDOPERATINGIN-
STRUCTIONS PROVIDED IN THIS DOCU-
MENT WILL RESULT IN AN IMPROP-
ERLY INSTALLED AND OPERATING AP-
PLIANCE,VOIDINGITSWARRANTY. ANY
CHANGE TO THIS APPLIANCE AND/OR
ITSOPERATINGCONTROLSISDANGER-
OUS. IMPROPERINSTALLATIONORUSE
OF THIS APPLIANCE CAN CAUSE SERI-
OUS INJURY OR DEATH FROM FIRE,
BURNS, EXPLOSION OR CARBON MON-
OXIDE POISONING.
All Models -
Maximum manifold pressure is 3.5 in. w.c.
(0.87 kPa) for natural gas and 10 in. w.c.
(2.49 kPa) for LP/Propane gas.
Cet appareil peut être installé dans un
maison préfabriquée (É.-U. seulement)
ou mobile déjà installée à demeure si
les réglements locaux le permettent. Cet
appareil doit être utilisé uniquement
avec les types de gaz indiqués sur la
plaque signalétique. Ne pas l'utiliser
avec d'autres gaz sauf si un kit de con-
version certifié est installé.
Installations at Altitudes of 0 to 4500 ft.-
Units are tested and approved for elevations
of 0 to 4500 feet (0 to 1372 meters).
Installations at Altitudes above 4500 ft.-
For elevations above 4500 feet (1372
meters), install the unit according to the
regulations of the local authorities having
jurisdictionand,intheUSA,thelatestedition
of the National Fuel Gas Code (ANSI Z223.1)
or, in Canada, the latest edition of the
CAN1-B149.1 and .2 codes.
Test gage connections are provided on the
front of the millivolt gas control valve (iden-
tified IN for the inlet and OUT for the mani-
fold side). A ¹⁄₈" NPT test gage connection
is provided at the inlet and outlet side of
the electronic gas control valve.
WARNING: CHILDREN AND ADULTS
SHOULD BE ALERTED TO THE HAZARDS
OFHIGHSURFACETEMPERATURES.USE
CAUTION AROUND THE APPLIANCE TO
AVOID BURNS OR CLOTHING IGNITION.
YOUNG CHILDREN SHOULD BE CARE-
FULLY SUPERVISED WHEN THEY ARE IN
THE SAME ROOM AS THE APPLIANCE.
Table 1 shows the units' gas orifice size for
the elevations indicated.
Minimum inlet gas pressure to these appli-
ances is 5.0 inches water column (1.24 kPa)
for natural gas and 11 inches water column
(2.74 kPa) for propane for the purpose of input
adjustment.
Orifice size
Model No.
Natural Propane
Maximum inlet gas supply pressure to these appli-
ances is 10.5 inches water column (2.61 kPa) for
natural gas and 13.0 inches water column (3.23
kPa) for propane.
DT-400
WARNING: DO NOT PLACE CLOTHING
OR OTHER FLAMMABLE MATERIALS
ON OR NEAR THIS APPLIANCE.
0.048
inch
#45
DR-400
AVERTISSEMENT: SURVEILLER LES
ENFANTS. GARDER LES VÊTEMENTS,
LES MEUBLES, L'ESSENCE OU AUTRES
LIQUIDES À VAPEUR INFLAMMABLES
À COTE DE L'APPAREIL.
Table 1
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
3
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REAR VENT
APPLICA
TION
TOP VENT
TION
APPLICA
APPLICATION
TOP VENT
HORIZONTAL VENT
HORIZONTAL VENT
VERTICAL VENT
(Top Vent
Application)
HORIZONTAL VENT
(Top Vent
Application)
VERTICAL VENT
(Rear Vent
Application)
(Rear Vent Application (Rear Vent Application
without a chase)
With a chase)
RECESSED
INSTALLATION
TOP VENT
APPLICATION
Typical Locations
Figure 2
LOCATION
Shelf Height inches (mm)
Top Vent - with One 90 Degree Elbow Rear Vent - Straight Out the Back
Model No.
In selecting the location, the aesthetic and
functional use of the appliance are primary
concerns. However, vent system routing to
the exterior and access to the fuel supply are
also important. Consideration should be given
to traffic ways, furniture, draperies, etc., due
to elevated surface temperatures (Figure 2 ).
The location should also be free of electrical,
plumbing or other heating/air conditioning
ducting.
Secure Vent
44 1/8 (1121)
N/A
Secure Flex
45 7/8 (1165)
N/A
Secure Vent
N/A
33 1/4 (845)
Secure Flex
N/A
33 1/4 (845)
DT-400
DR-400
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.
Thesedirectventappliancesareuniquelysuited
for installations requiring a utility shelf posi-
tioned directly above the fireplace. Utility
shelves like these are commonly used for
locating television sets and decorative plants.
Shelf Height
(
see table)
Shelf Height
(
see table)
To provide for the lowest possible shelf surface
use the alternate rear vent outlet with attached
venting routed in a way to minimize obstruc-
tions to the use of the space above the appli-
ance. Do not insulate the space between the
applianceandtheareaaboveit.SeeFigure3.
The minimum height from the base of the
appliance to the underside of combustible ma-
terials used to construct a utility shelf in this
fashion is shown in the table in Figure 3.
Shelf Above Fireplace With Top Venting
Shelf Above Fireplace With Rear Venting
Figure 3
APPLIANCE AND VENT CLEARANCES
1/2 in. (13 mm)
0 in. (0 mm) spacers
BACK
The appliance is approved with zero clearance
to combustible materials on all sides (as de-
tailed in Table 2 ), with the following excep-
tion: 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 re-
cessed, the side walls surrounding the unit
must not extend beyond the front edge of the
unit. See Figure 2.
1/2 in. (13 mm)
0 in. (0 mm) spacers
SIDES
The appliance should be mounted on a fully
supported base extending the full width and
depthoftheunit. Theappliancemaybelocated
on or near conventional construction materi-
als. However, if installed on combustible ma-
terials, such as carpeting, vinyl tile, etc., a
metal or wood barrier covering the entire bot-
tom surface must be used.
TOP SPACERS
FLOOR
0 in. (0 mm)
0 in. (0 mm)
From Bottom
of Unit to
Ceiling
64 in. (1626 mm)
1 in. (25.4 mm)*
VENT
SERVICE CLEARANCES
FRONT
3 Feet. (0.9 meters)
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
4
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Step 1. FRAMING
VENT TERMINATION CLEARANCES
Horizontal Vent Termination Clearances
Frame these appliances as illustrated in Fig-
ures 8 on page 7, unless the appliance is to be
installed in a corner. See Figure 9 on page 7
for corner framing installations. All framing
details must allow for a minimum clearance to
combustible framing members as shown in
Table 2 on page 4.
Iftheapplianceistobeelevatedabovefloorlevel,
asolidcontinuousplatformmustbeconstructed.
Headers may be in direct contact with the appli-
ance top spacers but must not be supported by
themornotchedtofitaroundthem. Allconstruc-
tionabovetheappliancemustbeselfsupporting,
DONOTusetheapplianceforstructuralsupport.
The fireplace should be secured to the side framing
members using the unit's nailing flanges - one top
and bottom on each side of the fireplace front. See
Figure 6. Use 8d nails or their equivalent.
Combustible Projection
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.
2¹⁄₂ inches or less in length
Combustible Projection
greater than 2¹⁄₂ inches in length
Ventilated
Soffit
Unventilated
Soffit
3"
Vertical Vent Termination Clearances
Terminate single vent caps relative to building
components according to Figure 4.
(76 mm)
18"
12"
(457 mm)
(305 mm)
TERMINATION HEIGHTS FOR VENTS ABOVE
FLAT OR SLOPED ROOFS
Horizontal Overhang
Termination Kit
2 FT
MIN.
Vertical
Wall
2 FT MIN.
See Figure 31 or 32 for the recess allowances,
into exterior walls, of the round and square
horizontal terminations.
Lowest
Discharge
Opening
Vent
Termination
H*
Figure 5 - Side Elevation View
Storm Collar
Flashing
X
12
Roof Pitch is X/12
Step 2. (page 5) Route gas supply line to
appliance location.
Unit Nailing Flange
1 inch (25.4 mm) Minimum
Clearance to Combustibles
Side
(No clearance to
Framing
Step 3. (page 8) Installtheventsystemand
exterior termination.
combustible
Concentric
Vent Pipe
*H = MINIMUM HEIGHT FROM ROOF TO
LOWEST DISCHARGE OPENING OF VENT
framing is required)
Step 4. (page 20) Field Wiring
Millivolt Appliances – The operating control
switch is factory installed.
Step 5. (page 20) Install blower kit (optional
equipment).
Step 6. (page 21) Make connection to gas
supply.
Step 7. (page 22) Install the logs, vermicu-
lite and glowing embers.
Step 8. (page 22) Checkoutapplianceopera-
tion.
Step 9. (page 22) Install glass door frame
assembly.
Step 10. (page 23) Adjust burner to ensure
H
(feet)
1.0
1.25
1.5
2.0
2.5
3.25
4.0
Roof Pitch
Flat to 6/12
Over 6/12 to 7/12
Over 7/12 to 8/12
Over 8/12 to 9/12
Over 9/12 to 10/12
Over10/12 to 11/12
Over 11/12 to 12/12
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.
Figure 4
Terminate multiple vent terminations accord-
ing to the installation codes listed at the top of
this page.
Figure 6
proper flame appearance.
Step 11. (page 23) Install the hoods.
Step 2. ROUTING GAS LINE
Horizontal 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 5. For
additional vent location restrictions refer to
Figure 7 on page 6.
Route a ¹⁄₂" (13 mm) gas line along the inside of
the right side framing as shown in Figure 7.
Gas lines must be routed, constructed and
made of materials that are in strict accordance
with local codes and regulations.
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
glass door. Remove the top panel. Remove
the cardboard from underneath the pressure
relief plates. Gently depress the outer top
corners of the access panel until the catches
"pop"thepanelfree, allowingittoswingoutand
down to open. Open the two latches (located
under the firebox floor) securing the glass
door. Remove the door by tilting it outward at
the bottom and lifting it up. Set the door aside
protecting it from inadvertent damage. See
Figure 50 on page 21. Remove the two card-
board pad strips from between the firebox
subfloor and the firebox sides.
All appliances are factory-equipped with a flex-
ible gas line connector and ¹⁄₂ inch shutoff
valve. (See step 6 on page 20).
TYPICAL INSTALLATION SEQUENCE
The typical sequence of installation follows,
however, each installation is unique resulting
in variations to those described.
See the page numbers references in the follow-
ing steps for detailed procedures.
Right Side
Front Corner of
Fireplace Framing
3"
Step 1. (page 5) Construct the appliance
framing. Position the appliance within the
framing and secure with nailing brackets.
(76 mm)
6 ¹⁄₂"
(152 mm)
Figure 7
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
5
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EXTERIOR HORIZONTAL VENT TERMINATION CLEARANCE REQUIREMENTS
*
See Item D in the Text Below.
Center Line
Exterior Wall
of Termination
Inside
Corner Detail
*18”
Horizontal
Termination
G
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
V
Fixed
Closed
Window
Operable
Window
L
V
3 ft.
V
F
V
J
M
C
B
B
C
V
I
A
X
V
= Air Supply Inlet
= Vent Terminal
= Area where Terminal is not Permitted
Canadian Installation*
12 inches (30cm)*
US Installation**
12 inches (30cm)**
A = Clearance above grade, veranda, porch,
deck, or balcony.
B = Clearance to window or door that may be
opened.
6 in (15cm) for appliances
< 10,000 Btuh (3kW), 12 in (30cm)
6 in (15cm) for appliances
< 10,000 Btuh (3kW), 9 in (23cm)
for appliances > 10,000 Btuh (3kW) and
< 50,000 Btuh (15kW), 12 inches (30cm)
for appliances > 50,000 Btuh (15kW)**
9" (229mm) recommended to prevent
window condensation
for appliances > 10,000 Btuh (3kW) and
< 100,000 Btuh (30kW), 36 inches (91cm)
for appliances > 100,000 Btuh (30kW)*
12" (305mm) recommended to prevent
window condensation
C = Clearance to permanently closed window
D = Vertical clearance to ventilated soffit
located above the terminal within a horizontal
distance of 18 inches (458mm) from the center
line of the terminal
18" (458mm)
18" (458mm)
E = Clearance to unventilated soffit
12" (305mm)
12" (305mm)
F = Clearance to outside corner
G = Clearance to inside corner
5" (12.7cm) minimum
6" (15.2cm) minimum
5" (12.7cm) minimum
6" (15.2cm) minimum
H = Clearance to each inside of center line
extended above meter/regulator assembly
I = Clearance to service regulator vent outlet
3 feet (91cm) within a height of 15 feet
above the meter/regulator assembly*
3 feet (91cm)*
3 feet (91cm) within a height of 15 feet
above the meter/regulator assembly**
3 feet (91cm)**
J = Clearance to nonmechanical air supply inlet 6 in (15cm) for appliances
6 in (15cm) for appliances
to building or the combustion air inlet to any
other appliance
< 10,000 Btuh (3kW), 12 in (30cm)
for appliances > 10,000 Btuh (3kW) and
< 100,000 Btuh (30kW), 36 inches (91cm)
for appliances > 100,000 Btuh (30kW)*
6 feet (1.83m)*
< 10,000 Btuh (3kW), 9 in (23cm)
for appliances > 10,000 Btuh (3kW) and
< 50,000 Btuh (15kW), 12 inches (30cm)
for appliances > 50,000 Btuh (15kW)**
3 feet (91cm) above if within 10 feet (3m)
horizontally**
K = Clearance to a mechanical air supply inlet
L = Clearance above paved sidewalk or paved
diveway located on public property
M = Clearance under veranda, porch, deck or
balcony
7 feet (2.13m)‡
7 feet (2.13m)‡
12 inches (30cm)*‡
12 inches (30cm)‡
* In accordance with the current CSA-B149.1 National Gas And Propane Installation Code.
** In accordance with the curent ANSI SZ223.1/NFPA 54 National Fuel Gas Codes.
‡ 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 8
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
6
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FIREPLACE FRAMING SPECIFICATIONS
**FRAMING WITH SQUARE HORIZONTAL TERMINATIONS (SV4.5HTSSL, SV4.5HTSS or SV4.5HTS)
AND ROUND HORIZONTAL TERMINATION (SV4.5HTR)
VENT FRAMING -
TOP VENT WITH ONE
90° ELBOW
10¹⁄₂
(267)
VENT FRAMING -
REAR VENT WITH
NO ELBOWS
7
(178)
5¹⁄₈
(130)
12¹⁄₈
(308)
Framing should be constructed of
2x4 or larger lumber.
7
*12⁷⁄₈ inches (327 mm) is the required
framing depth dimension when the finish
material (drywall) thickness is 1/2 in.
(13mm).
(178)
37¹⁄₈
(943)
5¹⁄₈
12¹⁄₈
(308)
(130)
33¹⁄₄
(845)
** See the horizontal venting Figures 35
and 36 on page 16 for restrictions on the
use of the round termination (SV4.5HTR)
19⁵⁄₈
(498)
*12⁷⁄₈
(327)
16⁵⁄₈
(422)
33¹⁄₄
(845)
Inches (mm)
Note-
Figure 9
Venting requirements for rear vent applications in corner installations -
- the round termination (SV4.5HTR) may not be used
- the horizontal vent length “a” to “b,” must not exceed 28 inches (711 mm)
SV4.5HTS Termination
b
Framing should be constructed of
2x4 or larger lumber.
SV4.5HTSS & SV4.5HTSSL
7 (178)
Termination
*These dimensions occur when one 45
degree elbow is connected directly to the
*F = 5 in.
b
appliance collar and the unit moved ¹⁄₂ in.
(127 mm)
(13 mm) into the room. This ¹⁄₂ in.
movement is required to achieve a min. of
5 in (127 mm) in the F dimension.
8³⁄₁₆ (208)
*34⁵⁄₁₆
(872)
*24¹⁄₄
(616)
*17³⁄₁₆
(437)
a
33¹⁄₈
(841)
Inches
(millimeters)
*48¹⁄₂
(1232)
Back wall of chase/enclosure (including any finishing materials)
CORNER FRAMING WITH SQUARE HORIZONTAL
TERMINATIONS (SV4.5HTSSL, SV4.5HTSS or SV4.5HTS)
Figure 10
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
7
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FIREPLACE SPECIFICATIONS
21¹⁄₂
(546)
(Louvered Front Model Shown)
FRAMING
SPACERS
(Top and Sides
and Rear)
10³⁄₄
(273)
*CONCENTRIC FLUE
FLUE - 4¹⁄₂ (114)
COMBUSTION AIR - 7¹⁄₂ (190)
Inches (millimeters)
*DR models have only a rear vent
*DT models have only a top vent
6¹³⁄₁₆
(173)
Top View
13
(330)
NOTE - Eyebrow
3 (76)
33¹⁄₈
(841)
hood shown as positioned
in louvered front model.
¹⁄₂ (13)
ELECTRICAL INLET
2³⁄₄ x 2 (70 x 51)
COVER PLATE with
KNOCKOUT)
1
(25)
1 (25)
30¹⁄₈
(765)
17
(432)
33¹⁄₈
(841)
GAS INLET
(Either Side
and bottom)
8¹¹⁄₃₂
(212)
27¹⁄₂
(699)
**19⁵⁄₈
(498)
1⁵⁄₈
(42)
3 (76)
2³⁄₄
(70)
**Rear vent models only
Front View
Right Side View
Figure 11
Step 3. INSTALL THE VENT SYSTEM
General Information
DONOTuseanyothermanufacturer's
vent components with these appli-
ances. These fireplaces must be vented
directly to the outside.
VENT RESTRICTOR INSTALLATION
(TOP VENT)
In all venting applications using the top vent of
the appliance, a vent restrictor may be
needed. Install the vent restrictor in the top
vent of the appliance outlet.
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.
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 enclos-
ing wall (such as a chase). There is no require-
ment for inspection openings in the enclosing
wall at any of the joints in the vent pipe.
If needed, install the restrictor orientated as
shown, either from inside or outside the unit,
in the inner fireplace collar.
RESTRICTOR
Thesefireplacesaredesigned,testedand
listed for operation and installation with,
and only with, Secure Vent™ (SV 4.5)
Direct Vent System Components, Secure
Flex™ Flexible Vent Components manu-
factured by Security Chimneys Interna-
tional. These approved vent system com-
ponents are labeled for identification.
Preparing the Appliance Top Vent Outlet in
All Venting Applications Using the Appliance
Top Vent Outlet
INNER
FIREPLACE
COLLAR
APPLIANCE TOP VENT OUTLET
A vent restrictor may be needed with this
appliance. Installtheventrestrictor(provided)
in the appliance top flue outlet as shown in
Figure 12. It is held in place by friction, only.
Figure 12
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Select Venting System - Horizontal or Vertical
VENT SECTION LENGTH CHART
VENT SECTION LENGTH CHART
Nominal
T
O
T
A
L
T
O
T
A
L
Nominal Section
With the appliance secured in framing, deter-
mine 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 in the tables on
pages 24 and 25.
6
12
24
36
48
Section Length
6
12
24
36
48
Length (inches)
(inches)
Net Section
4-1/2 10-1/2 22-1/2 34-1/2 46-1/2
Number of Vent Sections
Net Section
Length (inches)
4-1/2 10-1/2 22-1/2 34-1/2 46-1/2
Number of Vent Sections
Length (inches)
Height of Vent
Height of Vent
Q
T
Q
T
inches
144
ft
inches
4.5
ft
Y
Y
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
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
9
150
12.5
10.5 0.875
15 1.25
19.5 1.625
21 1.75
154.5 12.875
160.5 13.375
172.5 14.375
0
0
VERTICAL TERMINATION SYSTEMS (ROOF)
2
1
0
0
3
Figures 13, and Figures 23 through 27 on
pages 12 to 13 and their associated
Vertical Vent Tables illustrate the various ver-
tical venting configurations that are possible
for use with these appliances. Secure Vent
pipe applications are shown in these figures;
Secure Flex pipe may also be used. A Vertical
Vent Table summarizes each system’s mini-
mum and maximum vertical and horizontal
length values that can be used to design and
install the vent components in a variety of
applications. Both these vertical vent systems
terminate through the roof. The minimum
vent height above the roof and/or adjacent
walls is specified in ANSI Z223.1-(latest edi-
tion) (In Canada, the current CAN-1 B149
installation code) by major building codes.
Always consult your local codes for specific
requirements. A general guide to follow is the
Gas Vent Rule (refer to Figure 4 on page 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
177
183
186
14.75
15.25
15.5
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
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
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
0
5
55.5 4.625
237
19.75
0
6
57
66
4.75
5.25
241.5 20.125
7
7
246
252
264
276
279
20.5
21
7
8
67.5 5.625
7
8
69
72
5.75
6
22
7
8
23
8
8
73.5 6.125
79.5 6.625
Vertical (Straight) Installation
23.25
0
6
Determine the number of straight vent sections
required. 4 ¹⁄₂" (114 mm), 10 ¹⁄₂" (267 mm), 22
¹⁄₂"(572mm),34¹⁄₂"(876mm)and46¹⁄₂"(1181
mm) net section lengths are available. Plan the
ventlengthssothatajointdoesnotoccuratthe
intersection of ceiling or roof joists. Refer to
the Vent Section Length Chart.
280.5 23.375
283.5 23.625
289.5 24.125
301.5 25.125
310.5 25.875
8
9
81
90
6.75
7.5
0
7
0
7
91.5 7.625
0
7
93
96
7.75
8
9
9
315
26.5
9
10
7
97.5 8.125
102 8.5
103.5 8.625
325.5 27.125
0
2
0
1
0
0
0
0
0
0
0
3
3
2
0
0
4
3
4
330
336
345
27.5
28
0
8
SV4.5CGV-1
SV4.5FA OR
Termination
0
8
SV4.5FB Flashing
AND SV4.5SC
108
114
117
9
28.75
10
10
0
10
11
8
STORM COLLAR
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
349.5 29.125
372 31
118.5 9.875
126 10.5
130.5 10.875
376.5 31.375
379.5 31.625
418.5 34.875
0
9
1" (25.4 mm)
Minimum
Clearance to
Combustibles
11
0
11
9
135
138
11.25
11.5
423
465
35.25
38.75
0
10
*SV4.5BF
Firestop/Spacer
0
10 10
139.5 11.625
142.5 11.875
40' Max
(12.2 M)
SV4.5L6/12/24/36/48
Vent Sections
*When using Secure Flex,
use Firestop/Spacer
SF4.5BF
Figure 13
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Vertical (Offset) Installation
All of the appliances covered in this document
are fitted with collars having locking inclined
channels. The dimpled end of the vent compo-
nents fit over the appliance collar to create the
positive twist lock connection.
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,
adjusting the radial alignment until the four
locking dimples are aligned with the inlets of the
four incline channels of the previous section.
Analyze the vent routing and determine the
quantities of vent sections and number of el-
bows required. Refer to Vertical Vent Figures
andTablesonpage12and13toselectthetype
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 9 for an aid in
selectinglengthcombinations.Elbowsareavail-
able in 90° and 45° configurations. Refer to
Figure 18 for the SV4.5E45 and SV4.5E90
elbow dimensional specifications.
First Vent
Component
Align the dimple (four places)
with the opening of the locking
incline channel on appliance
collar. Twist vent component
clockwise to engage and seal.
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 16.
Dimple
Locking
Incline Channel
Appliance collar
D. Install firestop/spacer at ceiling - Use a
SV4.5BF firestop/spacer at ceiling joists. If
there is living space above the ceiling level, the
firestop/spacer must be installed on the bot-
tom side of the ceiling. If attic space is above
the ceiling, the firestop/spacer must be in-
stalled on the top side 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) clear-
ance to combustibles, framing members,
and attic or ceiling insulation when running
vertical chimney sections.
Vent / Appliance Collar
Connection
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
normal vent section component) and a plain
endwith3pilotholes.Sliptheplainendoverthe
locking channel end of a standard SV4.5 vent
component the required distance and secure
with three screws.
Figure 15
Arrow
Align the dimple (four places) of the
upper vent section with the opening of
the locking incline channel on the
lower vent section. Twist vent
component clockwise to engage and
seal until arrow and dimple align.
Dimple
Locking
Incline Channel
Connected
Vent Sections
Arrow
E. Support the vertical vent run sections -
Note - Proper venting support is very impor-
tant. The weight of the vent must not be sup-
ported by the firplace in any degree.
Vent / Vent Section
Connection
Arrow
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.
Figure 16
To attach a vent component to the appliance
collar, align the dimpled end over the collar,
adjusting the radial alignment until the four
lockingdimplesarealignedwiththeinletofthe
four inclined channels on the collar (refer to
Figure 15 ). Push the vent component against
the collar 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 the channels. The unitized
design of the Secure Vent components will
engage and seal both the inner 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 se-
curely lock when twisted.
Support the vertical portion of the venting sys-
temevery8feet(2.4m)abovethefireplacevent
outlet. One method of support is by utilizing
field provided support straps (conventional
plumber's tape). Secure the plumber's tape to
the framing members with nails or screws.
A. Frame ceiling opening - Use a plumb line
from the ceiling above the appliance to lo-
cate center of the vertical run. Cut and/or
frame an opening, 10¹⁄₂" x 10¹⁄₂" (267mm x
267mm) inside dimensions, about this cen-
ter mark (Figure 14).
10¹⁄₂” Min.
(267 mm)
Blocking
10¹⁄₂” Min.
(267 mm)
Support Straps
(Plumber’s tape)
Note: An elbow may also be attached to the
appliancecollar. Attachinthesamemanneras
you would a vent section.
8 feet (2.4 m)
Maximum
C. Attach vent components to each other -
Other vent sections may be added to the pre-
viously installed section in accordance with
the requirements of the vertical vent figures
and tables.
Figure 14
1 inch
B. Attach vent components to appliance -
Secure Vent SV4.5 direct vent system compo-
nents are unitized concentric pipe components
featuring positive twist lock connections (see
Figure 15 ).
(25.4 mm)
minimum
clearance to
combustibles
Figure 17
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Loop the tape around the vent, securing the
ends of the tape to the framing. If desired,
sheet metal screws #6 x ¹⁄₂" length may be
used to secure the support straps to the vent
pipe. Refer to Figure 17.
Storm
Collar
C
F.Changeventdirectiontohorizontal/inclined
run - At transition from or to a horizontal/
inclinedrun,installtheSV4.5E45andSV4.5E90
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 re-
quired direction of the next vent run element.
Twist elbow sections in a clockwise direction
onlysoastoavoidthepossibilityofunlocking
any of the previously connected vent sec-
tions. See Figure 18.
D
Framing Dimensions for Roof
Pitch
0/12
C
D
10¹⁄₂ in.
10¹⁄₂ in.
Figure 21
(267 mm) (267 mm)
10¹⁄₂ in. 12 in.
(267 mm) (305 mm)
10¹⁄₂ in. 17 ³⁄₄ in.
(267 mm) (451 mm)
K. Install the vertical termination - The final
step involves installation of the SV4.5CGV-1
VerticalTermination. Extendtheventsectionsto
theheightasshowninthe"Verticalventtermina-
tion section" on page 5. The SV4.5CGV-1 Verti-
cal Termination (Figure 22 ) installs in the exact
same fashion as any other Secure Vent section.
Align the termination over the end of the previ-
ouslyinstalledsection,adjustingtheradialalign-
ment until the four locking dimples of the termi-
nation are aligned with the inlets of the four
inclinechannelsofthelastventsection. Pushthe
terminationdownuntilitfullyengages,thentwist
the termination clockwise running the dimples
down and along the incline channels until they
seat at the end of the channels.
6/12
12/12
8 ¹⁄₈"
4 ¹³⁄₁₆"
(206 mm)
Figure 19
(122 mm)
Swivel Joint
Swivel Joint
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 20 ). 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.
(360° swivel)
(360° swivel)
SV4.5E45
SV4.5E90
(45° Elbow)
(90° Elbow)
Figure 18
G.Continueinstallationofhorizontal/inclined
sections - Continue with the installation of the
straight vent sections in horizontal/inclined run
as described in Step C. Install support straps
every 5' (1.52 m) along horizontal/inclined vent
runs using conventional plumber’s tape. 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. Use a carpenter’s level to measure
from a constant surface and adjust the support
straps as necessary.
Figure 20
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.
J. Install the storm collar - Install the storm
collar, supplied with the flashing, over the vent/
flashing joint. See Figure 21. Loosen the storm
collarscrew. Slidecollardownuntilitmeetsthe
topoftheflashing. Tightentheadjustingscrew.
Apply non-combustible caulking or mastic
around the circumference of the joint to pro-
vide a water tight seal.
Figure 22
If the vent system extends more than 5' (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
support on multiple joint configurations.
H. Frame roof opening - Identify location for
vent at the roof. Cut and/or frame opening per
Roof Framing Chart and Figure 19.
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VERTICAL VENT FIGURES/TABLES
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/Spacer
SF4.5BF
**When using Secure
Flex, use Firestop/Spacer
SF4.5HF
TABLE A
*Ceiling
V MINIMUM
H Maximum
Firestop/Spacer
(SV4.5BF)
feet
(m)
feet
2
(m)
(0.61)
(1.222)
(1.86)
(2.4)
WARNING:UNDERNOCIRCUMSTANCES
MAY SEPARATE SECTIONS OF CONCEN-
TRIC FLEXIBLE VENT PIPE BE JOINED
TOGETHER.
**Wall
1
2
3
4
(0.305)
(0.61)
Firestop/Spacer
(SV4.5HF)
4
(0.914)
(1.22)
6
V
8
Note: 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.
V + H = 40 feet (12.4 m) Max.
H = 8 feet (2.4 m) Max.
H
Figure 24 - Rear Vent - ONE 90 DEGREE ELBOW
Note: SV4.5BF (Secure Vent), SF4.5BF (Secure
Flex) firestop/spacer must be used anytime vent
pipe passes through a combustible floor or ceil-
ing. SV4.5HF (Secure Vent), SF4.5HF (Secure
Flex)firestop/spacer must be used anytime vent
pipe passes through a combustible wall.
TABLE B
V MINIMUM
H Maximum
feet (meters) feet (meters)
Note: 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.
H
1
2
3
4
(0.305)
(0.610)
(0.914)
(1.22)
5
(1.52)
(3.1)
10
15
20
*Ceiling
Firestop/Spacer
(SV4.5BF)
(4.65)
(6.2)
V + V1+ H = 40 feet (12.4 m)
Max.
H = 20 feet (6.2 m) Max.
*When using Secure Flex,
use Firestop/Spacer
V1
SF4.5BF
40 feet (12.2 meters)
V
*Ceiling
Firestop/Spacer
(SV4.5BF)
Maximum
**Wall
Firestop/Spacer
(SV4.5HF)
*Ceiling
Firestop/Spacer
(SV4.5BF)
**When using Secure
Flex, use Firestop/Spacer
SF4.5HF
*When using
Secure Flex, use
Firestop/Spacer
SF4.5BF
Figure 25 - Top Vent - TWO 90 DEGREE ELBOWS
Figure 23 - Top Vent - STRAIGHT
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VERTICAL VENT FIGURES/TABLES
(continued)
TABLE D
V Minimum H Maximum H+H1 Maximum
H1
*When using Secure Flex,
use Firestop/Spacer
SF4.5BF
**When using Secure
Flex, use Firestop/Spacer
SF4.5HF
feet
1
(m)
feet
2
(m)
feet
5
(m)
(1.52)
(3.1)
*Ceiling
Firestop/Spacer
(SV4.5BF)
(0.305)
(0.610)
(0.914)
(1.22)
(0.610)
(1.22)
(1.86)
(2.48)
2
4
10
15
20
A Vent Restrictor, as
shown in Figure 18,
page 10, must be used
in this application
3
6
(4.65)
(6.2)
**Wall
4
8
Firestop/Spacer
(SV4.5HF)
V+V1+H+H1 = 40 feet (12.4 m) Max.
H = 8 feet (2.48 m) Max.
H + H1 = 20 feet (6.2 m) Max.
V1
*Ceiling
Firestop/Spacer
(SV4.5BF)
V
H
Figure 26 - Rear Vent - THREE ELBOWS
TABLE E
*Ceiling
Firestop/Spacer
(SV4.5BF)
V MINIMUM
H + H1 Maximum
**Wall
V
1
Firestop/Spacer
(SV4.5HF)
feet
(m)
feet
5
(m)
(1.52)
(3.1)
1
2
3
4
(0.305)
(0.610)
(0.914)
(1.22)
H
10
15
20
(4.65)
(6.2)
H
1
H +H1= 20 feet (6.2 m) Max.
V+V1+H+H1 = 40 feet (12.4 m) Max.
V
*When using Secure Flex,
use Firestop/Spacer
SF4.5BF
**When using Secure
Flex, use Firestop/Spacer
SF4.5HF
Figure 27 - Top Vent - THREE ELBOWS
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HORIZONTAL (OUTSIDE WALL)
TERMINATION SYSTEM
TYPICAL HORIZONTAL VENT INSTALLATION
Support
Building
Support
Framing
Horizontal / Inclined Run
SV4.5HTSSL
Termination
Shown
Brackets
Figures 28, and Figures 34 to 41 on pages 16 to
18 and their associated Horizontal Vent Table
illustrate the various horizontal venting configura-
tions that are possible for use with these appli-
ances. SecureVentpipeapplicationsareshownin
these figures; Secure Flex pipe may also be used.
AHorizontalVentTablesummarizeseachsystem’s
minimum and maximum vertical and horizontal
lengthvaluesthatcanbeusedtodesignandinstall
the vent components in a variety of applications.
Both of these horizontal vent systems terminate
through an outside wall. Building Codes limit or
prohibit terminating in specific areas. Refer to
Figure 8 on page 6 for location guidelines.
SV4.5E90
Elbow
Firestop/Spacer
Exterior
Wall
SV4.5L6/12/24/36/48
Ceiling
Vent Sections
*Ceiling
Firestop/Spacer
(SV4.5BF)
SV4.5HTSSL
Termination
Shown
Vertical
Rise
Support Bracket Spacing
Every 5 ft (1.52 m)
*When using Secure Flex
use Firestop/Spacer
(SF4.5BF)
See Figure 17 on page 10
for vertical vent section
support.
Fireplace
Fireplace
Exterior
Wall
Figure 28
Secure Vent SV4.5 direct vent system compo-
nents are unitized concentric pipe components
featuring positive twist lock connection, (refer to
Figure 15 on page 10). All of the appliances
covered in this document are fitted with collars
having locking inclined channels. The dimpled
endoftheventcomponentsfitovertheappliance
collartocreatethepositivetwistlockconnection.
Sealant and securing screws are not required.
H. Change vent direction - At transition from
or to a horizontal/inclined 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
any of the previously connected vent sec-
tions. See Figure 18 on page 11.
Note: An elbow may also be attached to the
appliancecollar. Attachinthesamemanneras
you would a vent section.
E. Attach vent components to each other -
Other vent sections may be added to the previ-
ously installed section in accordance with the
requirements of the vent tables. To add another
vent component to a length of vent run, align the
dimpled end of the component over the inclined
channel end of the previously installed section,
adjusting the radial alignment until the four
locking dimples are aligned with the inlets of the
four incline channels of the previous section.
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 16 on page 10.
A. Plan the vent run -
Analyze the vent routing and determine the
types and quantities of 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" (1181 mm)
net section lengths are available. Make allow-
ances for elbows as indicated in Figure 18 on
page 10. Maintain a minimum 1" (25 mm)
clearance to combustibles on the vertical
sections. Clearances for the horizontal runs
are; 3" (76 mm) on top, 1" (25 mm) on sides,
and 1" (25 mm) at the bottom.
I. Continueinstallationofhorizontal/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/
inclinedventrunsusingconventionalplumber’s
tape. See Figure 28. 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. Use a carpenter’s
level to measure from a constant surface and
adjust the support straps as necessary.
B. Frame exterior wall opening -
Locatethecenteroftheventoutletontheexteriorwall
according to the dimensions shown in Figure 9 on
page 7. Cut and/or frame an opening, 10¹⁄₂" x 12¹⁄₈"
(267 mm x 308mm) inside dimensions, about this
center.
F. Install firestop/spacer at ceiling -
When using Secure Vent, use SV4.5BF fir-
estop/spacer at ceiling joists; when using Se-
cure Flex, use SF4.5BF firestop/spacer. If there
is living space above the ceiling level, the fir-
estop/ spacer must be installed on the bottom
side of the ceiling. If attic space is above the
ceiling, the firestop/ spacer must be installed
on the top side of the joist. Route the vent
sections through the framed opening and se-
cure the firestop/spacer with 8d nails or other
appropriate fasteners at each corner.
C. Frame ceiling opening - If the vertical
route is to penetrate a ceiling, use plumb line
to locate the center above the appliance. Cut
and/or frame an opening, 10¹⁄₂" x 10¹⁄₂" (267
mm x 267 mm) inside dimensions, about this
center (refer to Figure 14 on page 10 ).
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.
D. Attach vent components to appliance - To
attach a vent component to the appliance collar,
align the dimpled end over the collar, adjusting
theradialalignmentuntilthefourlockingdimples
are aligned with the inlets of the four incline
channels on the collar (refer to Figure 15 on
page 10). Push the vent component against the
collar until it fully engages, then twist the com-
ponent clockwise, running the dimples down
and along the incline channels until they seat at
the end of the channels. The unitized design of
the Secure Vent components will engage and
seal both the inner and outer pipe elements with
the same procedure.
Remember to maintain 1" (25 mm) clearance
to combustibles, framing members, and attic
or ceiling insulation when running vertical
chimney sections.
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
G. Support the vertical run sections -
Whenusingsquare(SV4.5HTS),shortsquare
(SV4.5 HTSS) or round (SV4.5HTR) horizon-
tal termination -
Assemble the vent system to point where the
terminus of the last section is within 6 in. (152
mm) to 10¹⁄₄ in. (260 mm) inboard of the
exterior surface to which the termination is to
be attached, see Figure 31 on page 15.
On the vertical run, support the venting system
every 8 feet (2.4m) above the fireplace vent
outlet with field provided support straps
(Plumber's tape). Attach the straps to the vent
pipe and secure to the framing members with
nails or screws. See Figure 17 on page 10.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
14
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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
31, refer to table 3 on page 16. This table lists
the additional venting components needed (in
addition to the termination and adapter) for a
particular range of wall thicknesses.
*Firestop/Spacer (SV4.5HF) shown
on the exterior side of the wall. It
may also be installed on the
interior side.
*Note - Firestop/Spacer integral
with round termination
(SV4.5HTR)
SV4.5 HTSS
Termination
Shown.
10¹⁄₂"
(267 mm)
*Note - When using Secure Flex
use Firestop/Spacer SF4.5HF
See Venting Figures for Use
Restrictions on the Horizontal
Round Termination (SV4.5HTR).
3"
(76 mm)
When using long square (SV4.5HTSSL)
horizontal termination -
Assemble the vent system to point where the
terminus of the last section is within 0 in. (0
mm) to 9³⁄₄ in. (248 mm) inboard of the
exterior surface to which the termination is to
be attached, see Figure 32.
6 to 48 inch Vent Section,
Telescopic vent section,
Elbow or Appliance Collar
1"
(25.4 mm)
7"
(178)
5¹⁄₈"
(130 mm)
Adapter
SV4.5RCH
12¹⁄₈"
(308 mm)
Note: Centerline of Vent
Piping is NOT the Same as
the Centerline of the
Framed Opening.
See Figure 9 on page
7 for Min. Distance to
Base of Appliance.
K. When using square (SV4.5HTS) or short
square (SV4.5 HTSS) horizontal termination
- attach termination adapter -
Attach the adapter (adapter - SV4.5RCH - pro-
videdwiththe termination)totheventsectionor
telescoping vent section), elbow or appliance
collarasshowninFigure29 inthesamemanner
as any SV4.5 vent component (refer to Step E).
Base of Appliance
Installing Square HorizontalTermination (SV4.5HTS) Short Square Horizontal
Termination (SV4.5HTSS) Round Horizontal Termination (SV4.5HTR)
Figure 29
*Firestop/Spacer (SV4.5HF) shown
on the exterior side of the wall. It
may also be installed on the
interior side.
SV4.5 HTSSL
Termination
Note: Centerline of Vent Piping is
NOT the Same as the Centerline of
the Framed Opening.
L. Install Firestop/Spacer at exterior wall -
When using either of the square terminations,
install SV4.5HF (Secure Vent), or SF4.5HF
(Secure Flex) firestop/spacer over the opening
at the exterior side of the framing, long side up,
with the 3 inch spacer clearance at the top as
shown in Figure 29 or 30, and nail into place.
(The Firestop/Spacer may be installed over the
opening at the interior side of the framing.)
When using the round termination, a separate
firestop/spacer is not required since this termi-
nation has integral spacers which provide the
same function as a separate firestop/spacer.
10¹⁄₂"
(267 mm)
3"
See Figure 9 on page 7
for Min. Distance to
Base of Appliance.
(76 mm)
Base of Appliance
1"
(25.4 mm)
6 to 48 inch Vent Section,
Elbow or Appliance Collar
7"
(178)
5¹⁄₈"
(130 mm)
12¹⁄₈"
(308 mm)
*When using Secure Flex, use
Firestop/Spacer (SF4.5HF)
Figure 30
Installing Long Square HorizontalTermination (SV4.5HTSSL)
Minimum wall thickness
*6 in. (152 mm)
*Note - Firestop/Spacer
(SV4.5HF) required, but
not shown for clarity.
Minimum wall thickness
*Cut termination collar
for wall thicknesses
*10³⁄₄ in. (273 mm)
less than 10³⁄₄ in. (273 mm).
Maximum wall thickness
Maximum wall thickness
20 in. (508 mm)
10¹⁄₄ in. (260 mm)
Interior Surface of Finished Wall
Interior Surface of
Finished Wall
Exterior Surface of Siding
Exterior Surface of Framing
Maximum Extent of
Vent Run Sections
Relative to Exterior
Surface of Framing
Exterior Surface of Siding
Exterior Surface of Framing
Maximum Extent of
Vent Run Sections
Relative to Exterior
Surface of Framing
6 in. to 10¹⁄₄ in.
(152 mm to 260 mm)
10³⁄₄ to 20 in.
Last Vent Section. Use
Telescopic Vent Section
(SV4.5LA), If Necessary
(273 to 508 mm)
*Cut termination collar
for wall thicknesses
less than 6 in. (152 mm).
Last Vent Section
Termination Securing
Screw
SV4.5HTSSL Long
Square Termination
Adapter
SV4.5RCH
SV4.5HTSS Short
Square Termination
Shown
Siding
Siding
1¹⁄₄" Maximum Recess of Square
Termination into Exterior Finishing
Material. Round Termination may
not be recessed at all.
1¹⁄₄" Maximum Recess of
Square Termination into
Exterior Finishing Material
*Note - Firestop/Spacer
(SV4.5HF) required, but not
shown for clarity.
*When using Secure Flex, use
Firestop/Spacer SF4.5HF
*When using Secure Flex, use
Firestop/Spacer SF4.5HF.
Connecting/Recessing
Square (SV4.5HTS)
Short Square (SV4.5HTSS)
or Round (SV4.5HTR)
Horizontal Termination
SV4.5HTSS Short Square
Termination Shown
SV4.5HTSSL Long
Connecting/Recessing
Long Square Horizontal
Termination (SV4.5HTSSL)
Square Termination
Stucco
Stucco
Figure 31
Figure 32
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
15
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M. Install the desired termination - See the
horizontal venting figures for application re-
strictionsontheroundtermination(SV4.5HTR).
Orient the housing of the termination with the
arrow pointed upwards. Secure the termina-
tion to the exterior wall. The horizontal termi-
nation must not be recessed into the exterior
wall or siding by more than the 1 ¹⁄₄" (32 mm)
as shown in Figure 32.
The SV4.5HTR Round Termination may not
be used when the appliance is vented di-
rectly out the wall from the rear as shown in
Figures 34 and 35.
1.Installthesquare(SV4.5HTS)orshortsquare
termination (SV4.5HTSS) - For the last step ,
from outside the exterior wall, slide the collars of
the termination into the adapter (see Figure 31)
untiltheterminationseatsagainsttheexteriorwall
surface to which it will be attached. Orient the
housingoftheterminationwiththearrowpointed
upwards. Secure the termination to the exterior
wall. The horizontal termination must not be
recessedintotheexteriorwallorsidingbymore
than the 1 ¹⁄₄" (32 mm) as shown in Figure 31.
Do Not recess the SV4.5HTR round termina-
tion at all.
3. Install the round termination (SV4.5HTR)
– See Figure 33 for an illustration of the round
termination. For the last step, from outside the
exterior wall, slide the collars of the termina-
tion onto the adapter (same as shown in Fig-
ure 31 for the SV4.5HTSS short square termi-
nation) until the termination seats against the
exterior wall surface to which it will be at-
tached. Orient the housing of the termination
with the arrow pointed upwards. Secure the
termination to the exterior wall.
SeeHorizontalVenting
Figures and Tables for
Use Restrictions
SV4.5HTR Horizontal
Round Termination
Figure 33
2. Install the long square termination
(SV4.5HTSSL) - For the last step , from outside
the exterior wall, slide the collars of the termi-
nationontothelastventsection(seeFigure32)
until the termination seats against the exterior
wall surface to which it will be attached.
SFHRK Snorkel Cap –The snorkel cap is de-
signed to be fitted into a basement window
box. The SFHRK cap is for use with flex vent
The vertical distance between the inlet and
outlet of the cap is 28 in. (711 mm). pipe.
Note: 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.
HORIZONTAL VENT FIGURES/TABLES
TABLE 3 - Venting Components Required for Various Exterior
Wall Thicknesses, When Using Any of These Termination Kits -
Square Termination (SV4.5HTS) Small Square Termination
(SV4.5HTSS) Round Termination (SV4.5HTR)
Note: SV4.5BF (Secure Vent), SF4.5BF (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.
Venting Components
Required
Termination Kit Only
Exterior Wall Thicknesses
inches (mm)
6 to 10 1/4 (152 to 260)
Note: Two45degreeelbowsmaybeusedinplaceofone90degreeelbow.Thesame
rise to run ratios, as shown in the venting figures for 90 elbows, must be followed if
45 degree elbows are used.
Termination Kit and 6 in. vent
section (SV4.5L6)
Termination Kit and12 in. vent
section (SV4.5L12)
10 1/4 to 14 3/4 (260 to 375)
16 3/4 to *20 3/4 (425 to *527)
Note: 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.
Termination Kit and Telescopic
section (SV4.5LA) and 6 in.
vent section (SV4.5L6)
11 3/4 to *21 3/4 (298 to *552)
*Note: See Figure 35 for wall thickness range reductions when using
SV4.5HTSandSV4.5HTSSterminations.
WARNING: UNDERNOCIRCUMSTANCESMAYSEPARATESECTIONS
OF CONCENTRIC FLEXIBLE VENT PIPE BE JOINED TOGETHER.
28 in. (711 mm)
Maximum
20 in. (508 mm)
Maximum
28 in. (711 mm)
Maximum.
10³⁄₄ to 20 in.
(273 to 508 mm)
*When using Secure Flex,
use Firestop/Spacer
(SF4.5HF)
*Wall Firestop/Spacer
(SV4.5HF)
*Wall Firestop/Spacer
(SV4.5HF)
SV4.5HTSS Termination Shown
*When using Secure flex,
12 in. Vent Section
Note - In applications where the wall thickness is less than 6 inches
(152 mm), field shortening of the termination collar may be required.
use Firestop/Spacer
(SV4.5L12)
SF4.5HF)
See Table 3 as an aid in venting component selection for a particular
range of exterior wall thicknesses.
The round horizontal termination (SV4.5HTR) may not be used.
Note - It may be necessary to cut the termination collar
in some applications.
The round horizontal termination (SV4.5HTR) may not be used.
Rear Vent - NO ELBOWS - with SV4.5HTSSL
Figure 35 -
Rear Vent - NO ELBOWS - with SV4.5HTS SQUARE OR
SV4.5HTSS SHORT SQUARE TERMINATION
Figure 34 -
LONG SQUARE TERMINATION
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
16
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HORIZONTAL VENT FIGURES/TABLES (CONTINUED)
TABLE F
V = 0ne 90 degree elbow
H = 3 feet (0.914 m) Max.
H
V
Refer to Table 3 on page 16 for an aid in venting component selection for a
particularrangeofexteriorwallthicknesseswhenusingthesquare(SV4.5HTS),
small square (SV4.5HTSS) or the round (SV4.5HTR) termination .
Short Square Termination (SV4.5HTSS) shown;
Long Square Termination (SV4.5HTSSL) may also be used;
Square Termination (SV4.5HTS) may also be used
Round Termination (SV4.5HTR) may also be used.
*Wall Firestop/Spacer
(SV4.5HF)
*When using Secure Flex, use Wall Firestop/Spacer SV4.5HF.
Figure 36 - Top Vent - ONE 90 DEGREE ELBOW - ELBOW CONNECTION AT APPLIANCE
TABLE G
TABLE H
V Minimum
H Maximum H+H1 Maximum
V Minimum
H Maximum
feet
(m)
feet
2
(m)
feet
5
(m)
(1.52)
(3.1)
feet
(m)
feet
5
(m)
(1.52)
(3.1)
1
2
3
4
(0.305)
(0.610)
(0.914)
(1.22)
(0.610)
(1.22)
(1.86)
(2.48)
1
2
3
4
(0.305)
(0.61)
4
10
15
20
10
6
(4.65)
(6.2)
(0.914) 15
(1.22) 20
(4.65)
(6.2)
8
V+H+H1 = 40 feet (12.4 m) Max.
H = 8 feet (2.48 m) Max.
H + H1 = 20 feet (6.2 m) Max.
V + H = 40 feet (12.4 m) Max.
H = 20 feet (6.2 m) Max.
RefertoTable3onpage16 foranaidinventingcomponentselection
for a particular range of exterior wall thicknesses when using the
square (SV4.5HTS), small square (SV4.5HTSS) or the round
(SV4.5HTR) termination .
Refer to Table 3 on page 16 for an aid in venting component selection for a
particularrangeofexteriorwallthicknesseswhenusingthesquare(SV4.5HTS),
small square (SV4.5HTSS) or the round (SV4.5HTR) termination .
Short Square Termination (SV4.5HTSS) shown;
Long Square Termination (SV4.5HTSSL) may also be used;
Square Termination (SV4.5HTS) may also be used
Round Termination (SV4.5HTR) may also be used.
Short Square Termination (SV4.5HTSS) shown;
Long Square Termination (SV4.5HTSSL) may also be used;
Square Termination (SV4.5HTS) may also be used
Round Termination (SV4.5HTR) may also be used.
H
H
1
*When using Secure Flex,
use Wall Firestop/Spacer
SF4.5HF.
H
*Wall
Firestop/Spacer
(SV4.5HF)
V
**Ceiling
Firestop/Spacer
(SV4.5BF)
*When using Secure
*Wall
Firestop/Spacer
(SV4.5HF)
Flex, use Wall
Firestop/Spacer
SF4.5HF.
V
*Wall Firestop/Spacer
(SV4.5HF)
**Ceiling Firestop/Spacer
(SV4.5BF)
**When using Secure
Flex, use Ceiling
Firestop/Spacer
SF4.5BF.
**When using Secure Flex, use Ceiling
Firestop/Spacer SF4.5BF.
Figure 37 - Top Vent - ONE 90 DEGREE ELBOW -
ELBOW CONNECTION NOT DIRECTLY AT APPLIANCE
Figure 38- Rear Vent - TWO 90 DEGREE ELBOWS
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
17
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HORIZONTAL VENT FIGURES/TABLE (CONTINUED)
Refer to Table 3 on page 16 for an aid in venting component selection for a particular range of exterior
wall thicknesses when using the square (SV4.5HTS), small square (SV4.5HTSS) or the round (SV4.5HTR)
TABLE J
V MINIMUM
H + H1 Maximum
termination .
*Wall Firestop/Spacer
(SV4.5HF)
feet
(m)
feet
(m)
(1.52)
(3.1)
1
2
3
4
(0.305)
(0.610)
(0.914)
(1.22)
5
H
10
15
20
(4.65)
(6.2)
H
1
V
V + H+ H1 = 40 feet (12.4 m) Max.
H + H1= 20 feet (6.2 m) Max.
*When using Secure Flex,
use Wall Firestop/Spacer
SF4.5HF.
*Wall Firestop/Spacer
(SV4.5HF)
Short Square Termination (SV4.5HTSS) shown;
Long Square Termination (SV4.5HTSSL) may also be used;
Square Termination (SV4.5HTS) may also be used
Round Termination (SV4.5HTR) may also be used.
**Ceiling
Firestop/Spacer
(SV4.5BF)
**When using Secure
Flex, use Ceiling
Firestop/Spacer
SF4.5BF.
Figure 39- Top Vent - TWO 90 DEGREE ELBOWS
TABLE K
*Wall Firestop/Spacer
(SV4.5HF)
H+H1+H2
Maximum
V Minimum
H Maximum
H
1
feet
(m)
feet
2
(m)
feet
(m)
(1.52)
(3.1)
H
2
1
2
3
4
(0.305)
(0.610)
(0.914)
(1.22)
(0.610)
(1.22)
(1.86)
(2.48)
5
4
10
15
20
*When using Secure Flex,
use Wall Firestop/Spacer
SF4.5HF.
6
(4.65)
(6.2)
**Ceiling Firestop/Spacer
(SV4.5BF)
8
V+H+H1+H2 = 40 feet (12.4 m) Max.
H = 8 feet (2.48 m) Max.
H+H1+H2= 20 feet (6.2 m) Max.
**When using Secure Flex,
use Ceiling Firestop/Spacer
SF4.5BF.
V
Refer to Table 3 on page 16 for an aid in venting component selection for a
particularrangeofexteriorwallthicknesseswhenusingthesquare(SV4.5HTS),
small square (SV4.5HTSS) or the round (SV4.5HTR) termination .
Short Square Termination (SV4.5HTSS) shown;
Long Square Termination (SV4.5HTSSL) may also be used;
Square Termination (SV4.5HTS) may also be used
Round Termination (SV4.5HTR) may also be used.
H
Figure 40 - Rear Vent - THREE 90 DEGREE ELBOWS
*When using Secure Flex,
use Wall Firestop/spacer
SF4.5HF.
TABLE L
V MINIMUM
H Maximum
H
**When using Secure flex,
use Ceiling Firestop/spacer
SF4.5BF.
1
feet
(m)
feet
5
(m)
(1.52)
(3.1)
1
2
3
4
(0.305)
(0.610)
(0.914)
(1.22)
**Ceiling Firestop/spacer
(SV4.5BF)
10
15
20
(4.65)
(6.2)
H
H +H1= 20 feet (6.2 m) Max.
V+V1+H+H1 = 40 feet (12.4 m) Max.
V
*Wall Firestop/spacer
(SV4.5HF)
1
V
Refer to Table 3 on page 16 for an aid in venting component selection for a
particularrangeofexteriorwallthicknesseswhenusingthesquare(SV4.5HTS),
small square (SV4.5HTSS) or the round (SV4.5HTR) termination .
Short Square Termination (SV4.5HTSS) shown;
Long Square Termination (SV4.5HTSSL) may also be used;
Square Termination (SV4.5HTS) may also be used
Round Termination (SV4.5HTR) may also be used.
*Wall Firestop/spacer
(SV4.5HF)
Figure 41 - Top Vent - THREE 90 DEGREE ELBOWS
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
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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
Secure Flex venting kits and components may
be used in any venting application where rigid
Secure Vent (SV4.5) direct vent components
can be used. 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. 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 re-
quirements or clearance considerations de-
tailed in this manual.
SECURING SCREW
(3 PLACES EQUIDISTANT
JUST BELOW GEAR CLAMP)
Apply ONLY MIL-PAC BLACK HIGH
TEMPERATURE SEALANT (Catalog No.
10K81) to the outside surface of both
collars of the adapter (be especially
careful to fill the grooves of the outer
collar to be covered by the flexible
pipe) and slide flexible pipe over
inner and outer adapter collars.
GEAR
CLAMPS
1³⁄₄ in. (44 mm)
Flexible Pipe and
Adapter Outer
1³⁄₄ in. (44 mm)
Flexible Pipe and
Adapter Inner
Collar Overlap
Collar Overlap
SecureFlexkitscomewithanincludedadapter
that can be fitted to the appliance collar or 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. Align the dimpled end of the adapter
over the previously installed section or appli-
ance collar, adjusting the radial alignment until
the four locking dimples of the adapter are
aligned with the inlets of the four incline chan-
nels 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.
Adapter
(SV4.5RF)
SECURING SCREW
(3 PLACES EQUIDISTANT
JUST BELOW GEAR CLAMP)
Attach Adapter to Appliance
Collar, or Secure Vent Sections
Figure 42
B. Install the Outer Flex Pipe -
1. Install the large gear clamp loosely around
the outer flexible vent pipe, push it back out of
the way.
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 BF
firestop/spacer for ceilings and the SF4.5 HF
firestop/spacer for walls. See the appropriate
sections and figures shown throughout the
ventingsectionfortheirinstallationrequirments.
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
1³⁄₈ inches from the end.
SF-12 or SF-18 Flexible Vent Section
Attach the flexible vent to the adapter as
follows (see also Figure 42):
3. Pull and extend the outer flexible vent pipe.
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.
4. Slide the outer flex pipe over the adapter
collar. 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" (127 mm)
Radius Minimum
2. Apply a bead of Mill-Pac Black (700°F)
high temperature sealant - Catalog No.
10K81) to the inner adapter collar, approxi-
mately ¹⁄₂ inch from the end.
Figure 43
5. Slide the gear clamp down and tighten it
fully to secure the flexible vent to the adapter
outer collar approximately ³⁄₄ inch from the
end of the flex.
E. Attach Flex Vent to Termination -
Secure Flex components can be purchased
separately and attached to bulk lengths of
Secure Flex flexible tubing cut to size at the
job site. Secure the flexible vent to the Secure
Flex terminations in the same manner (see
Figure 42) as it was attached to the adapter.
3. Pull and extend the inner flexible vent pipe.
4. Slide the inner flex pipe over the adapter
collar. 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.
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 connection.
Note: Secure Flex vent must be attached to
Secure Flex terminations only. DO NOT
substitute Secure Vent terminations or the
Secure Vent adapter for Secure Flex compo-
nents. The collars of Secure Flex termina-
tions and adapters have a different circum-
ference than that used with the Secure Vent
pipe. Additionally, Secure Flex components
have an extended length center tube for use
in attaching the flexible vent.
C. Route Flex Vent -
5. Slide the gear clamp down and tighten it fully to
secure the flexible vent to the adapter inner collar
approximately ³⁄₄ inch from the end of the flex.
Ensure that the flex vent is properly routed to
provide the required clearance. Do Not allow
the flexible vent to bend in a radius tighter than
5" (127 mm). Refer to Figure 43. Support
horizontal sections of flex with metal straps at
2 foot (0.61 m) intervals.
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 connection.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
19
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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 bottom
compartment.
4. Connect the ground supply wire to the
outlet's green ground screw.
Step 4. FIELD WIRING
The gas valve is set in place and pre-wired at
the factory on both models.
5. Reinstall the outlet box.
6. Insert the blower plug into the top outlet.
A. SIT and Honeywell Millivolt Wiring
(See Figure 44 ) –
B. Electronic Wiring (See Figure 45 ) –
(The bottom outlet is unused on millivolt units,
while the burner control circuit plugs into the
bottom outlet on electronic units.)
1. Select any of the following optional con-
trols: appliance-mounted (rocker switch) or
wall-mounted switch, thermostat, oroneofthe
optional remote control kits. If appliance-
mountedON/OFFcontrolisselectedmountitin
the gas valve mounting bracket.
Note: The electronic appliance must be con-
nected to the main power supply.
IMPORTANT: Ground lead must be con-
nected to the green screw located on the
outlet box. See Figure 45. 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.)
1. Route a 3-wire 120Vac 60Hz 1ph power
supply to the appliance junction box.
2. Removetheoutletboxfromthejunctionbox
by removing two screws .
2. Ifwall-mountedON/OFFcontrolorthermo-
statisselectedmountitinaconvenientlocation
on a wall near the fireplace.
3. Connect the black power supply wire to the
lower outlet's red pigtail lead and the white
power supply wire to the common terminal of
the outlet as shown in Figure 46.
3. Wire the control switch 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. Connect the ground supply wire to the
outlet's green ground screw.
Electronic Wiring Diagram (Honeywell)
Showing the Blower Wiring for the Optional
FBK-100 and FBK-200 Kits
1. If any of the original wire as supplied must be replaced,
1. it must be replaced with Type AWM 105°C – 18 GA. wire.
2. 120V, 60Hz – Less than 3 amps.
5. Locate and install a low voltage (24V) wall
switch or thermostat (not supplied) in the
desired location.
4. Alternatively, the appliance may be operated
without the use of the controls indicated in step
1, solely by manipulating the gas valve control
knob. In order to use this method, twist the free
ends of the two conductor wire (located inside
thebottomcompartmentof theunit)togetheras
shown in Figure 44.
**Leave the ON/OFF switch, which is integral
**ON/OFF Switch (Integral
with the gas valve, in the ON position.
with Gas Valve)
6. Connect the low voltage wire to this switch
or thermostat.
*OPTIONAL
ACCESSORY
SWITCH
Gas Valve
PILOT
ASSEMBLY
BK
W
G
BK
7. Insert the control circuit plug into the lower
outlet box.
120
VAC.
R
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 bottom com-
partment of the unit.
BL
Outlet Box
Green Ground
Screw
8. After wiring is complete, replace the outlet box.
OPT
BLOWER
Black
G
pigtail
Break Off
Tab
Note: The gas valve-mounted ON/OFF switch
isshowninFigure45. Itisintegralwiththegas
valve.
Red
pigtail
White Wire
to Opposite
Side
Junction Box
W
Transf.
B
120 V.
Millivolt Wiring Diagram
G
Step 5. WIRING - OPTIONAL FORCED AIR
BLOWER KIT (See Figure 45 )
Hot side of Outlet
BL
If any of the original wire as supplied must be replaced,
it must be replaced with Type AWM105°C – 18 GA. wire.
24 V
R
An electrical outlet box is provided for the instal-
lation of the FBK-100, FBK-200 forced air blower
kits (optional). Electrical power must be pro-
vided to this box to operate these blowers.
W
BK
OPTIONAL APPLIANCE-MOUNTED ON/OFF SWITCH
OR OPTIONAL WALL SWITCH
OR OPTIONAL THERMOSTAT
OR OPTIONAL REMOTE RECEIVER
1. Route a 3-wire, 120Vac 60Hz 1ph power line
with control switch to the lower right rear
corner of the appliance.
*Blower speed control switch is provided in FBK200 blower kit.
Thermopile
Factory Wired
Field Wired
Schematic Representation Only
A
B
2. Remove the outlet box by removing two
screws.
Figure 45
*OPTIONAL ON/OFF SWITCH,
WALL SWITCH, THERMOSTAT
OR REMOTE CONTROL RECEIVER
3. Connect the supply wires to the blower
controlswitch.Thenconnectthewiresfromthe
blower control switch to the outlet box' pigtail
leads as shown in Figure 45.
*TWIST WIRES “A” AND “B” TOGETHER TO OPERATE UNIT
SOLELY BY MANIPULATING THE GAS VALVE CONTROL KNOB;
OR CONNECT WIRES TO OPTIONAL ON/OFF SWITCH OR WALL
SWITCH OR THERMOSTAT TO OPERATE UNIT.
Figure 44
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
20
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FBK-250 Blower Kit (See Figure 46)
Turn on gas supply and test for gas leaks using
a soapy water solution. Never use an open
flame to check for leaks.
Step 6. CONNECTING GAS LINE
An electrical outlet box is provided for the instal-
lation of the FBK-250 forced air blower kit.
Electrical power must be provided to this box to
operate these blowers. Install the blower kit
according to the installation instructions pro-
vided with the kit.
Make gas line connections. All codes re-
quire a shut-off valve mounted in the supply
line. Figure 47 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.
Open the lower panel or louver assembly by
gently depressing the outer top corners of the
panel until the catches “pop” the panel free,
allowing it to swing out and down to open.
1. Routea3-wire, 120Vac 60Hz 1ph powerline
to the lower right rear corner of the appliance.
Control
Valve
2. Remove the outlet box by removing two
screws.
These appliances can be equipped with a gas
flex line for use (where permitted) in connect-
ing the unit to the gas line. The gas flex line
(not provided) is to aid in attaching the direct
vent appliance to the gas supply. The gas flex
line can only be used where local codes per-
mit. See Figure 47 for flex line description.
The flex line is rated for both natural and
propane gas. The optional gas flex line is
equipped with a manual shut off valve.
Lower Control
Compartment
Door
3. Connect the black supply wire to both of the
outlet box' pigtail leads and the white supply
wire to the common terminal of the outlet box
as shown in Figure 46.
Opening Control Compartment Door
Figure 48
4. Connect the ground supply wire to the
outlet's green ground screw.
A. Mix a 50% dish soap, 50% water solution.
5. Reinstall the outlet box.
B. Light the appliance (refer to the lighting
instructionsprovidedintheHomeowner'sCare
and Operation Instructions).
Open the control compartment access panel
(Figure 48) by actuating the spring-loaded
magnetic catches securing the panel, gently
depressing the outer top corners of the panel
until the catches "pop" the panel free, allowing
it to swing out and down to open.
6. Insert the kit-provided module plug into the
top outlet.
(The bottom outlet is unused on millivolt
units, while the burner control circuit plugs
into the bottom outlet on electronic units.)
C. Brush all joints and connections with the
soapy water solution to check for leaks. If
bubbles are formed, or gas odor is detected,
turn the gas control knob to the “OFF” position.
Either tighten or refasten the leaking connec-
tion and retest as described above.
The millivolt control valve has a ³⁄₈"
(10 mm) NPT thread inlet port.
7. Insert the blower plug into the module's
receptacle.
Secure all joints tightly using appropriate
tools and sealing compounds (ensure pro-
pane resistant compounds are used in pro-
pane applications).
Electronic Wiring Diagram (Honeywell)
Showing the Blower Wiring for the Optional
FBK-250 Kits
D. When the gas lines are tested and leak free,
observe the individual tongues of flame on the
burner. Make sure all ports are open and pro-
ducing flame evenly across the burner. If any
ports are blocked, or partially blocked, clean
out the ports.
1. If any of the original wire as supplied must be replaced,
1. it must be replaced with Type AWM 105°C – 18 GA. wire.
2. 120V, 60Hz – Less than 3 amps.
*Leave the ON/OFF switch, which is integral
with the gas valve, in the ON position.
*ON/OFF Switch (Integral
with Gas Valve)
Outlet Box Green
Ground Screw
Gas Valve
PILOT
ASSEMBLY
G
120
VAC.
BK
W
BK
Optional Gas Flex Line Connector
Optional FBK-250
Module
R
³ꢀ₈" NPT x ³ꢀ₈
Flare Fitting
BL
¹ꢀ₂" x ³ꢀ₈" Flare
Shut-Off Valve
Gas
Valve
OPT
BLOWER
G
White Wire
To Opposite
Side
³ꢀ₈" Flex Tubing
W
B
Transf.
120 V.
G
Gas
Stub
Hot side of Outlet
¹ꢀ₂ x ³ꢀ₈ "
Reducer
24 V
BL
³ꢀ₈" Nipple
³ꢀ₈" Union
³ꢀ₈" Close Nipple
R
WH
BK
OPTIONAL APPLIANCE-MOUNTED ON/OFF SWITCH
OR OPTIONAL WALL SWITCH
³ꢀ₈" Shut-Off Valve
OR OPTIONAL THERMOSTAT
OR OPTIONAL REMOTE RECEIVER
Factory Wired
Field Wired
Figure 47 - GAS CONNECTION
Schematic Representation Only
Figure 46
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
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Replace logs if removed for pilot inspection.
Step7. INSTALLINGLOGS ANDGLOWING
EMBERS
Step 9. INSTALLING THE GLASS DOOR
To light the burner; turn “ON” the remote wall
switch and rotate the gas valve control knob
counterclockwise to the “ON” position.
Retrieve the glass door. Visually inspect the
gasket on the backside of the frame. Gasket
surface must be clean, free of irregularities and
seated firmly.
The logs are packaged in a carton which is
shrink-wrapped to the front glass enclosure
panel. The glowing embers are packaged sepa-
rately inaplasticbaglocatedinthecontrolarea
of the fireplace.
Hood Ignitor Rod
SIT MILLIVOLT
Thermocouple
Positionthedoorinfrontofthefireboxopening
with the bottom of the door held away from the
fireplace (Figure 53 ). Hook the top flange of
thedoorframeoverthetopofthefireboxframe.
Refer to the homeowner's care and operation
instructions for detailed placement instruc-
tions for the logs and glowing embers.
Let the bottom of the door frame swing gently
in towards the fireplace ensuring that the gas-
ket seats evenly as the door frame draws shut.
Fasten the two latches located underneath the
firebox floor to the door's vee-flange. Close
both the latches securely.
³⁄₈" Min
(9 mm)
Step 8. CHECKING APPLIANCE OPERATION
Pilot
Withgaslineinstalledruninitialsystemcheckout
before closing up the front of the unit. Follow the
pilot lighting instructions provided in the
Homeowner's Care and Operation Instructions.
For piezo ignitor location see Figure 49 (SIT and
Honeywell millivolt appliances only).
Nozzels
Thermopile
Figure 50
Top Flange
Door Frame
HONEYWELL MILLIVOLT
Thermocouple
Note: Instructions are also found on the litera-
ture tag attached to the gas valve train.
Ignitor Rod
¹⁄₈" Min
(3 mm)
Hood
Glass Door
Whenfirstlightingtheappliance, itwilltakeafew
minutes for the line to purge itself of air. Once
purgingiscomplete,thepilotandburnerwilllight
andoperateasindicatedintheinstructionmanual.
Subsequent lightings of the appliance will not
require such purging. Inspect the pilot flame
(remove logs, if necessary, handling carefully).
Latch
³⁄₈" Min
(9 mm)
Pilot
Nozzels
Thermopile
Figure 51
Electronic Appliance Checkout
Bottom Vee-flange
Door Frame
Latch
SIT Gas Valve
To light the burner, turn ‘ON’ the optional
remote wall switch and turn the gas control
switch to the “ON” position. Ensure the ignitor
lights the pilot. The pilot flame should engulf
the flame rod as shown in Figure 52.
Firebox Floor
Honeywell
Gas Valve
Figure 53 - INSTALLING THE GLASS DOOR
Piezo
Ignitor
WARNING: HANDLE THIS GLASS WITH
EXTREME CARE! THE GLASS PANEL IS
SUSCEPTIBLE TO DAMAGE — DO NOT
SCRATCH WHILE HANDLING OR WHILE
RE-INSTALLINGTHEGLASSDOORFRAME.
ELECTRONIC
Sit and Honeywell Millivolt Gas Valve
Showing Piezo Ignitor Location (Each Unit is
Equipped with Only One of these Gas Valves)
3/8 To 1/2 Inch
(9 mm to 13 mm)
Proper Flame
Adjustment
Figure 49
Pilot
Nozzle
Ground
Electrode
SIT and Honeywell Millivolt Appliance Checkout
WARNING: NEVER OPERATE THE APPLI-
ANCE WITHOUT THE FRONT GLASS EN-
CLOSURE PANEL IN PLACE AND SECURE.
The pilot flame should be steady, not lifting or
floating. Flame should be blue in color with
traces of orange at the outer edge. The top ³⁄₈"
(10 mm) at the pilot generator (thermopile)
and the top ¹⁄₈" min (tip) of the quick drop out
thermocouple should be engulfed in the pilot
flame. The flame should project 1" (25 mm)
beyond the hood at all three ports (Figure 50
- SIT, Figure 51 - Honeywell )
Flame Rod
Hot Surface
Igniter
Figure 52
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
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Allow the burner to operate for at least 15 min-
utes. Observe the flame continuously. If it ap-
pears weak or sooty as previously described,
adjusttheairshutterbypushingorpullingonthe
adjustment rod until the flame appearance is as
desired.
Step 10. BURNER ADJUSTMENTS
Flame Appearance and Sooting
Step 11. HOOD INSTALLATION
All of these appliances must have hoods
installed prior to operating.
Proper flame appearance is a matter of taste.
Generally, mostpeoplepreferthewarmglowof
a yellow to orange flame. Appliances operated
with air shutter openings that are too large will
exhibit flames that are blue and transparent.
These weak, blue and transparent flames are
termed anemic. If the air shutter opening is too
small sooting may develop.
On all clean face units, slide the hood into the slots
on the lower edge of the radiant panel (Figure 55 ).
Theadjustmentrodandassociatedadjustableair
shutter is patented technology. Flame adjust-
ments can be made quickly and accurately to
taste without the need of disassembling the
appliance and waiting for 30 minutes after each
adjustment.
On louvered face units, slide the hood into the slots
on the lower edge of the cabinet top (Figure 56 ).
FINISHING REQUIREMENTS
Wall Details
Sooting is indicated by black puffs developing
at the tips of very long orange flames. Sooting
results in black deposits forming on the logs,
appliance inside surfaces and on exterior sur-
faces adjacent to the vent termination. Sooting
is caused by incomplete combustion in the
flames and lack of combustion air entering the
air shutter opening. To achieve a warm yellow
to orange flame with an orange body that does
not soot, the shutter opening must be adjusted
between these two extremes.
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 (Figures 55 and 56 ).
Note:Iftheflamestillappearsanemicwiththe
air shutter closed all the way against the stop
(usually a result of lengthy vertical runs), turn
the appliance off, turn the gas supply off, wait
for the parts to cool, remove the glass door and
logs to access the air shutter. The shutter is
prevented from actually closing all the way by
an adjustment set screw (see Figure 54). Re-
move this screw using a ¹⁄₄ inch nut driver.
Reinstall the logs and glass door, turn the gas
backonandthenrestarttheappliance.After30
minutes, reobserve the flame. Adjust the air
shutter as previously described.
Combustible
Finished Wall
This Area Must Remain
Clear of Combustible
Materials
Materials
1" Min
(25 mm)
Combustible
material
No smokeorsootshouldbepresent. Reposition
the logs if flames impinge on any of them.
If the logs are properly positioned and sooting
conditions exist, the air shutter opening on the
main burner tube should be adjusted. Normally,
the more offsets in the vent system, the greater
the need for the air shutter to be opened further.
Spacer
may touch the
appliance top.
When satisfied that the appliance operates
properly, proceed to finish the installation.
Leave the control knob in the ON position
and the remote switch OFF. Close the lower
control compartment door.
Combustible
materials not
allowed below
this point on
the face of the
appliance.
Top of Appliance
Radiant panel
Top of Door Frame
Burner Adjustment
Hood must be installed as shown.
Clean Face Models
WARNING: AIR SHUTTER ADJUST-
MENT SHOULD ONLY BE PERFORMED
BY A QUALIFIED PROFESSIONAL
SERVICE TECHNICIAN.
Adjusting Set Screw
Adjustment Rod Up
(Fully Open Position)
Figure 55
Burner Tube
Air Shutter
Combustible
IMPORTANT: ENSURE THAT THE
FRONT GLASS PANEL IS IN PLACE
AND SEALED DURING ADJUSTMENT.
Finished Wall
Materials
This Area Must Remain
Clear of Combustible
Materials
Adjustment Rod Down
(minimum air
Combustible
1" Min
material
(25 mm)
opening position)
may touch the
appliance top.
CAUTION: THE AIR SHUTTER DOOR AND
NEARBYAPPLIANCESURFACESAREHOT.
EXERCISE CAUTION TO AVOID INJURY
WHILEADJUSTINGFLAMEAPPEARANCE.
Spacer
FACTORY AIR
SHUTTER SETTING
Natural Gas Propane Gas
Combustible
materials not
allowed below
this point on
the face of the
appliance.
Models
inches
(mm)
1/32
inches
(mm)
5/16
To adjust the flame, move the adjustment rod
(located in the lower control area) up or down
to increase or reduce the air shutter opening,
respectively. Initially, always position the air
shuttertothefactorysetting(theminimumair
opening position) as shown in Figure 54. This
can be done by pulling the adjustment rod all
the way down.
Top of Appliance
Louvers
DT-400
DR-400
(0.8)
(8.0)
Top of Door Frame
Figure 54
Hood must be installed as shown.
Louver Face Models
Figure 56
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
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A hearth extension is not required with this appliance. If a hearth extension is used, do not block the lower control compartment door. Any hearth
extension used is for appearance only and does not have to conform to standard hearth extension installation requirements.
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 Figures 55 and 56 on page 23.
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 glass or louvers; they may cover any portion of the top radiant panel or the air gaps surrounding the top radiant
panel up to the installed hood.
Vertical installation clearances to combustible mantels vary according to the depth of the mantel. (See Figure 58 ). 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.
Combustible materials may project beyond the
MANTEL CLEARANCES
Inches (mm)
sides of the fireplace opening as long as they
are kept within the shaded areas illustrated in
Figure 57.
12 (305) MANTEL
10 (254) MANTEL
8 (203) MANTEL
Combustible Materials
Allowed In Shaded
Top View Of
Area “Safe Zone”
Fireplace
6 (152) MANTEL
4 (102) MANTEL
12"
14
(356)
12
(305)
10
(254)
TOP OF
APPLIANCE
5"
45°
8
2 (51) MANTEL
6
(203)
17"
(152)
4
(102)
Min. Distance
8 ¹⁄₄"
To Protected
Side Wall
Side
Wall
NOTE - Hood shown as positioned
in louvered front model. The hood
position in the flush faced front model
is lower than shown.
Side
Wall
Min. Distance To
14"
Unprotected Side Wall
Figure 57
COLD CLIMATE INSULATION
Figure 58
Ifyouliveinacoldclimate, sealallcracksaroundyourappliancewithnoncombustiblematerialandwherevercoldaircouldentertheroom. Itisespecially
important to insulate outside chase cavity between studs and under floor on which appliance rests, if floor is above ground level.
INSTALLATION ACCESSORIES
Listed Secure Vent™Components
Listed Secure Flex™Components
Cat.
No.
86L95
Cat.
No.
Model
No.
Model No. Description
Description
These termination kits include firestop/spacer, gear clamps and flex adapter.
SV4.5HTR Horizontal Round Termination
with Firestop/Spacer (96K80)
and Adapter (74L61)
86L94 SF-HTR
Horizontal Round Termination
without Flex
77L82 SFKIT12R Flex Round Term. with 12 in.
(305 mm) of *compressed Flex
98L27
SV4.5HTSSL Horizontal Long Small Square
Termination with
77L83 SFKIT18R Flex Round Term. with 18 in.
(457 mm) of *compressed Flex
Firestop/Spacer (96K80) and
12 in. (305 mm) vent section
(77L71)
77L84 SFKIT24R Flex Round Term. with 24 in.
(610 mm) of *compressed Flex
77L85 SFKIT36R Flex Round Term. with 36 in.
(914 mm) *compressed Flex
86L97
94L10
H2152
SV4.5HTS Horizontal Square Termination
with Firestop/Spacer (96K80)
and Adapter (74L61)
77L86 SFKIT48R Flex Round Term. with 48 in.
(1219 mm) of *compressed Flex
87L01 SFHRK
Snorkel Riser Kit with Flex
Adapter, a section of Flex, and
Gear Clamps
SV4.5HTSS Horizontal Short Square
Termination with
Firestop/Spacer (96K80) and
Adapter (74L61)
SV4.5CGV-1 Vertical Termination
19M40 SF4.5HF
19M41 SF4.5BF
Firestop/Spacer-
Horizontal (3-1-1 spacing)
Firestop/Spacer-
Vertical (1-1-1 spacing)
*All compressed flex vents can be expanded up to two times.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
24
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INSTALLATION ACCESSORIES (Continued)
Listed Secure Vent™Components
Listed Secure Flex™Components
Cat.
No.
Cat.
Model No. Description
Model No.
SV4.5L6
Description
No.
These termination kits include firestop/spacer, gear clamps and flex adapter.
77L70
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
94L09 SF-HTSS
Horizontal Short Small Square
Termination without Flex
SV4.5L12
SV4.5L24
SV4.5L36
SV4.5L48
SV4.5LA Telescopic Section
SV4.5E45 45 Degree Elbow
77L71
77L72
77L73
77L74
77L75
77L76
94L04 SFKIT12S- Flex Short Small Square Term.
S
with 12 in. (305 mm of
*compressed Flex
94L05 SFKIT18S- Flex Short Small Square Term.
S
with 18 in. (457 mm) of
*compressed Flex
94L06 SFKIT24S- Flex Short Small Square Term.
S
with 24 in. (610 mm) of
*compressed Flex
77L77
SV4.5E90 90 Degree Elbow
94L07 SFKIT36S- Flex Short Small Square Term.
S
with 36 in. (914 mm) of
*compressed Flex
The following flashings come packaged with a storm collar.
94L08 SFKIT48S- Flex Short Small Square Term.
SV4.5F-B
91L01
91L02
91L03
77L81
Flat Roof Flashing
SV4.5FA-B 1/12 to 7/12 Adjust. Flashing
SV4.5FB-B
S
with 48 in. (1219 mm ) of
*compressed Flex
7/12 to 12/12 Adjust. Flashing
These termination kits include firestop/spacer, gear clamps and flex adapter.
SV4.5SC6 Storm Collars (6 collars/box)
86L96 SF-HTS
Horizontal Square Termination
without Flex
96K80
96K87
96K93
SV4.5HF Firestop/Spacer -
Horizontal (3-1-1 spacing)
SV4.5BF Firestop/Spacer -
Vertical (1-1-1 spacing)
77L87 SFKIT12S
Flex Square Term. with 12 in.
(305 mm of *compressed Flex
77L88 SFKIT18S
77L89 SFKIT24S
77L90 SFKIT36S
77L91 SFKIT48S
Flex Square Term. with 18 in.
(457 mm) of *compressed
Flex
Flex Square Term. with 24 in.
(610 mm) of *compressed
Flex
Flex Square Term. with 36 in.
(914 mm) of *compressed
Flex
Flex Square Term. with 48 in.
(1219 mm ) of *compressed
Flex
Vertical Termin. for Flex (flat
to 6/12) with Flex Adapter,
section of rigid vent, roof
support collar assembly, roof
flashing and storm collar.
SV4.5SU Support Strap
96K94
SV4.5RSA Attic Insulation Shield
96K92
97K00
SV4.5SP Support Plate
SV4.5HGR Heat Guard Round
56L74 SFVT30
87L02
SV4.5HGS Heat Guard Square
56L75 SFVT45
Vertical Termin. for Flex (6/12
to 12/12) with Flex Adapter
section of rigid vent, roof
support collar assembly, roof
flashing and storm collar.
17M52
17M53
96K98
SV4.5 Heat Guard Square (1 - Pack)
HGS-1
SV4.5 Heat Guard Square (12 - Pack)
HGS-12
60L10 SF-18
98K03 SF-12
10K81 SFMP
18 ft. (5.49 m) *compressed
SV4.5HDR Heat Deflector for Round
Termination
Flex
12 ft.(3.66 m) *compressed
86L98
SV4.5RFF Adapter - Crimped Fireplace
Collar to Secure Vent
Flex
t
n
a
Mil Pac Black Hi-Temperature
Sealant
l
a
e
S
99L03 SV4.5HRK36 Horizontal Riser Kit 36"
99L02 SV4.5HRK14 Horizontal Riser Kit 14"
88J01 SF-GC4
83J00 SF-GC7
87L00 SF4.5RF
Gear Clamp 4.5in. (114 mm)
for Flex
Gear Clamp 7.5 in. (190.5
mm) for Flex
Flex Adapter
*All compressed flex vents can be expanded up to two times.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
25
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GAS CONVERSION KITS
WARNING: THIS CONVERSION KIT SHALL BE
INSTALLED BY A QUALIFIED SERVICE AGENCY IN
ACCORDANCE WITH THE MANUFACTURER'S IN-
STRUCTIONS AND ALL APPLICABLE CODES AND
REQUIREMENTS OF THE AUTHORIZED AGENCY
HAVING JURISDICTION. IF THE INFORMATION IN
THESE INSTRUCTIONS IS NOT FOLLOWED EX-
ACTLY, A FIRE, EXPLOSION OR PRODUCTION OF
CARBON MONOXIDE MAY RESULT CAUSING
PROPERTYDAMAGE,PERSONALINJURYORLOSS
OFLIFE. THEINSTALLATIONISNOTPROPERAND
COMPLETE UNTIL THE OPERATION OF THE CON-
VERTEDAPPLIANCEISCHECKEDASSPECIFIEDIN
THEOWNERINSTRUCTIONSSUPPLIEDWITHTHE
KIT.THEQUALIFIEDSERVICEAGENCYPERFORM-
ING THIS INSTALLATION ASSUMES RESPONSI-
BILITY FOR THIS CONVERSION.
AVERTISSEMENT: CET ÉQUIPEMENT DE CONVERSION
SERAINSTALLÉPARUNEAGENCEQUALIFIÉEDESERVICE
CONFORMÉMENT AUX INSTRUCTIONS DU FABRICANT ET
TOUTES EXIGENCES ET CODES APPLICABLES DE
L'AUTORISÉSAVOIRLAJURIDICTION. SIL'INFORMATION
DANS CETTE INSTRUCTION N'EST PAS SUIVIE
EXACTEMENT, UN FEU, EXPLOSION OU PRODUCTION DE
PROTOXYDEDECARBONEPEUTRÉSULTERLEDOMMAGES
CAUSER DE PROPRIÉTÉ, PERTE OU BLESSURE
PERSONNELLEDEVIE. L'AGENCEQUALIFIÉEDESERVICE
EST ESPONSABLE DE L'INSTALLATION PROPRE 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.
In Canada:
Natural To Propane Gas Conversion Kit
(SIT Systems)
Models No. Unit Type
Natural To Propane Gas Conversion Kit
(Honeywell Systems)
THE CONVERSION SHALL BE CARRIED OUT
INACCORDANCEWITHTHEREQUIREMENTS
OF THE PROVINCIAL AUTHORITIES HAVING
JURISDICTION AND IN ACCORDANCE WITH
THE REQUIREMENTS OF THE CAN1-B149.1
AND .2 INSTALLATION CODE.
Catalog No.
H1594
Models No. Unit Type
Catalog No.
26M51
26M51
99L90
DT-400
DR-400
DT-400
DR-400
millivolt
millivolt
DT-400
DR-400
DT-400
DR-400
millivolt
millivolt
H1594
electronic
electronic
99L90
electronic
electronic
LA CONVERSION DEVRA ÊTRE EFFECTUÉE
CONFORMÉMENT AUX RECOMMANDATIONS
DES AUTORITÉS PROVINCIALES AYANT
JURIDICTION ET CONFORMÉMENT AUX
EXIGENCES DU CODE D'INSTALLATION CAN1-
B149.1 ET.2.
99L90
99L90
Propane to Natural Gas Conversion Kit
(Honeywell Systems)
Propane to Natural Gas Conversion Kit
(SIT Systems)
Model No.
DT-400
DR-400
DT-400
DR-400
Unit Type Catalog No.
Model No.
DT-400
DR-400
DT-400
DR-400
Unit Type Catalog No.
millivolt
millivolt
H1595
H1595
99L91
99L91
millivolt
millivolt
26M55
26M55
99L91
99L91
Gas conversion kits are available to adapt your
appliance from the use of one type of gas to the
useofanother. Thesekitscontainalltheneces-
sary components needed to complete the task
including labeling that must be affixed to en-
sure safe operation.
electronic
electronic
electronic
electronic
Step 4. Millivolt Appliances - SIT Systems
SIT Millivolt Gas Valve
Kit part numbers are listed here and the follow-
ing steps detail the conversion procedure.
a. See Figure 59 and the instructions provided
with the kit. Using a Torx T20, remove and
discard the three pressure regulator mounting
screws. Removethepressureregulator,spring,
poppet, diaphragm and bushing. Discard all
removed components. Ensure the rubber gas-
ket 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.
Step 1. Turn off the gas supply to the appliance.
Remove the front glass door/frame from the
appliance. Access the control compartment.
Pressure
Regulator
Step 2. Carefully remove the logs. Exercise
care as not to break the logs.
Remove
These
Components
Step 3. Locate the screws securing the burner
(tray) to the appliance. Remove the burner and
retain the securing screws.
Figure 59
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
26
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Pilot for Honeywell Millivolt Gas Valve
(Loosening of Hex Fitting For Orifice Strip Tab Positioning)
Pilot for SIT Millivolt Gas Valve
Hood Alignment
Hood
7/16 in. Open End Wrench
Pilot
Orifice
Figure 60
Orifice Strip Tab
b. Attach manometer to the manifold side
pressure test fitting and verify manifold pres-
sure reads 3.5 inches water column (0.87 kPa)
for natural gas, and 10.0 inches water column
(2.49 kPa) for propane gas.
Take Care Not to Contact the Orifice Strip Tab
with the Hex Fitting Wrench - Distortion of the Tab
May Render the Pilot Inoperative.
Figure 62
Pilot for Honeywell Millivolt Gas Valve
c. Refer to Figure 60 and remove the pilot
hood assembly to access the hexed pilot ori-
fice. Remove and replace the orifice with the
one provided with the kit.
Orifice Strip Tab Position Identification
For LP/Propane and Natural Gas
LP/Propane Gas Position -
Natural Gas Position -
NAT shown on tab
1/16 in. Hole, LP and
Step 5. Millivolt Appliances -
Honeywell Systems
Red Color shown on tab
L
a.Convertthegasvalveasfollows(seeFigure61):
Removetheplasticprotectingcap. Removethe
gas type setting screw by turning it counter-
clockwise. Obtain the replacement gas type
setting screw from the kit and screw it into
place(redforpropaneandbluefornaturalgas).
Tighten the gas type setting screw by turning it
clockwise. Replace the plastic protecting cap.
NAT
Top View of Hex Fitting and Orifice Strip Tab
Figure 63
Pilot for Honeywell Millivolt Gas Valve Orifice Strip Tab Positioning
Pilot Hood Position After
Loosening Hex Fitting 1/4 Turn
Honeywell Millivolt Gas Valve
Orifice Strip Tab
Push Tab to Set
Gas Type Usage
Adjusting Knob
Regulator Cap
Conversion screw
(blue natural gas;
red LP/propane gas)
Note - Orifice Strip Tab May
Be Randomly Located On Any
Side Of The Hex Fitting
Figure 61
Figure 64
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
27
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b. Attach manometer to the manifold side
pressure test fitting and verify manifold pres-
sure reads 3.5 inches water column (0.87 kPa)
for natural gas, and 10.0 inches water column
(2.49 kPa) for propane gas.
All Models
Inlet Pressure Test Port
Step 7. Remove the orifice from the mani-
fold and replace it with the one provided with
the kit. See the following table for orifice sizes
for natural and propane models. Figure 67
illustrates the orifice.
Manifold
Pressure
Test Port
c. Convert the pilot orifice as follows (refer to
Figures 62, 63 and 64 ):
Note - Use extra care not to engage the orifice
strip with the 7/16" open end wrench (contact-
ing the orifice strip could cause strip distortion
rendering the pilot inoperative). Also avoid
wrench contact to any of the other pilot parts.
Slotted
Cap
Orifice size
Model No.
Spring
Natural Propane
Adjusting
Screw
DT-400
0.048
#45
Use a 7/16" open end wrench and turn the pilot
hex fitting counter-clockwise 1/4 turn. (refer
to Figure 62 ).
inch
Figure 65
DR-400
Removethescrewsecuringthepilotassembly
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.
Note - The orifice strip tab may be randomly
located on any side of the hex fitting.
d. Push the orifice strip tab all the way against
the hex fitting to align the appropriate gas type
orifice (refer to Figures 63 and 64). The type
of gas for which the pilot is set, is, the gas type
shown on the tab.
Remove the pilot orifice and replace it with the
one provided with the conversion kit. Reinstall
the pilot assembly by reversing the steps de-
tailed here.
Figure 67
Step 8. Reassembleallremovedcomponents
by reversing the procedures outlined in the
preceding steps. Use pipe joint compound or
Teflon tape on all pipe fittings before installing
(ensurepropaneresistantcompoundsareused
in propane applications, do not use pipe joint
compounds on flare fittings).
e. Retighten, clockwise, the pilot hex fitting
until the pilot hood aligns with the thermo-
couple and thermopile as indicated by the
arrows shown in Figure 62.
When reinstalling the ignitor assembly, use
extreme care to prevent damage and break-
age. Do not apply any leverage to the ignitor
assembly while restoring the retainer clip to
its original position.
Step 6. Electronic Appliances -
Honeywell Systems
Step 9. Attach the conversion label provided
in the conversion kit to the rating plate on the
appliance.
Pilot
Assembly
Pilot
Orifice
See Figure 65 and the instructions provided
with the kit. Remove the slotted cap screw, o-
ring, pressure-regulating adjusting screw and
spring. Retain all parts for possible later use.
Install new components from the kit. Black cap
and red spring for propane gas units. Silver cap
and stainless steel spring for natural gas units.
Before installing the cap, attach manometer to
the manifold side pressure test fitting and adjust
screw until pressure reads 3.5 inches water
column (0.87 kPa) for natural gas, and 10.0
incheswatercolumn(2.49kPa)forpropanegas.
Ignitor
Assembly
Step 10. Turn on gas supply and test for gas
leaks.
Retaining
Clip
Flare Nut
Note: If the ignitor is damaged, a replacement
kit is available - order Catalog Number 87L54.
See Figure 66 and replace the pilot orifice as
follows: Remove the ignitor assembly retainer
clip, andcarefullyremovetheignitorassembly.
Exercise extreme care to prevent damage to
or breakage of the ignitor assembly.
Figure 66
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
The manufacturer 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 distributor for fireplace code information.
Printed in U.S.A. © 2002 by Lennox Hearth Products
LHP
P/N 700,020M REV. M 11/2004
1110 West Taft Avenue • Orange, CA 92865
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