TOA Electronics SSDV-3328 User Manual

US

This appliance may be installed in an aftermarket
permanently located, manufactured 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
appliance is not convertible for use with other
gases, unless a certified kit is used.

INSTALLATION
INSTRUCTIONS

DIRECT VENT

SSDV-3328 SERIES

DIRECT VENT GAS FIREPLACE HEATERS

P/N 700,043M REV. A 06/2008

MODELS

Millivolt Models Electronic Models

In the Commonwealth of Massachusetts:

• Installation must be performed by a licensed plumber or

gas fitter;

• See Table of Contents for location of additional Com­monwealth of Massachusetts requirements.

WARNING: IF THE INFORMATION IN THIS MANUAL
IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLO­SION MAY RESULT CAUSING PROPERTY DAMAGE,
PERSONAL INJURY OR LOSS OF LIFE.

FOR YOUR SAFETY: Do not store or use gasoline
or other flammables or liquids in the vicinity of
this or any other appliance.

FOR YOUR SAFETY: What to do if you smell gas:

• DO NOT light any appliance.

• 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.

• If your gas supplier cannot be reached, call
the fire department.

Installation and service must be performed by
a qualified installer, service agency or the gas
supplier.

OTL Report No. 116-F-29-5

SSDVT-3328CNM
SSDVR-3328CNM

INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.

AVERTISSEMENT: ASSUREZ-VOUS DE BIEN
SUIVRE LES INSTRUCTIONS DONNÉ DANS CETTE
NOTICE POUR RÉDUIRE AU MINIMUM LE RISQUE
D'INCENDIE OU POUR ÉVITER TOUT DOMMAGE
MATÉRIEL, TOUTE BLESSURE OU LA MORT.

POUR VOTRE SÉCURITÉ: Ne pas entreposer ni
utiliser d'essence ni d'autre vapeurs ou liquides
inflammables dans le voisinage de cet appareil ou

de tout autre appareil.
POUR VOTRE SÉCURITÉ: Que faire si vous sentez

une odeur de gaz:

• Ne pas tenter d'allumer d'appareil.

• Ne touchez à aucun interrupteur. Ne pas vous
servir 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.

• Si vous ne pouvez rejoindre le fournisseur de
gaz, appelez le service dos incendies.

SSDVT-3328CNE
SSDVR-3328CNE

A French manual is available upon request. Order P/N 700,043CF

Ce manuel d’installation est disponible en francais, simplement en
faire la demande. Numéro de la pièce 700,043CF.

L'installation et service doit être exécuté par un
qualifié installeur, agence de service ou le fournis­seur de gaz.

TABLE OF CONTENTS

Packaging .........................................Page 2

Introduction ......................................Page 2

General Information ..........................Page 2

Requirements for the
Commonwealth of Massachusetts .Page 4

New York City Approval .....................Page 4

Cold Climate Insulation .....................Page 5

Location ............................................Page 5

Manufactured Home Requirements ..Page 6

Vent Termination Clearances ............Page 7

Minimum Clearances to Combustibles ..Page 9

Detailed Installation Steps .................Page 10

Typical Installation Sequence ...........Page 10

Step 1. Framing .................................Page 10

Step 2. Routing Gas Line ..................Page 10

Fireplace Specifications .....................Page 11

Step 3. Install the Venting System ....Page 13

Vertical Termination Systems ............Page 14

Vent Section Length Chart ................Page 14

Vertical Vent Tables and Figures ........Page 17

Horizontal Termination System .........Page 19

Horizontal Vent Tables and Figures ...Page 21

Venting Using Flexible Vent Pipe .......Page 24

Step 4. Field Wiring ...........................Page 25

Step 5. Optional Blower Kit Wiring ....Page 25

Step 6. Connecting Gas Line .............Page 26

Step 7. Checking Unit Operation .......Page 27

Step 8. Installing Logs .....................Page 28

Step 9. Installing Glass Door ............Page 30

Step 10. Burner Adjustments ............Page 31

Step 11. Hood Installation .................Page 31

Finishing Requirements ....................Page 31

Installation Accessories ....................Page 32

Gas Conversion Kits ..........................Page 34

This installation manual will help you obtain
a safe, efficient, dependable installation for
your appliance and vent system.

Please read and understand these
instructions before beginning your

installation.

2

The Millivolt appliances have a millivolt
gas control valve with piezo ignition system
which provides safe, efficient operation. If any
optional accessories that will require electrical
power are to be installed, the electrical power
must be provided at the time of appliance
installation.

The Electronic appliances have an electronic
intermittent pilot ignition system which
provides safe, efficient operation. External
electrical power is required to operate these
appliances.

PACKAGING

The assembled vented gas fireplace heater is
packaged with:
1 - One log set located in firebox area.
2 - One envelope containing the literature pack-

age which consists of the homeowner's
manual, installation instructions, and war­ranty; envelope is located in the control
compartment.

3 - One vent restrictor to be applied as shown on

Page 13; restrictor is taped to the envelope.
4 - One hood located behind the top panel.
5 - One bag of decorative volcanic stone located

in the control compartment.
6 - One bag of glowing embers located in the

control compartment.

INTRODUCTION

These vented gas fireplace heaters are sealed
combustion, air circulating gas fireplaces de­signed for residential applications.

Approved Vent Components - These fireplaces
are designed, tested and listed for operation
and installation with, the following vent com­ponents only:

• Secure Vent™ Direct Vent System Compo-

nents,

• Secure Flex™ Flexible Vent Components

manufactured by Security Chimneys Inter-

national and

• Z-FLEX™ Model GA Venting Systems listed

to UL1777 and ULCS635 manufactured by

Flexmaster Canada Limited.
These approved vent system components are
labeled for identification. DO NOT use any other
manufacturer’s vent components with these
appliances. Use only the correct size venting
(4-1/2" inner & 7-1/2" outer).

These appliances comply with National Safety
Standards and are tested and listed by OMNI­Test Laboratories, Inc. (Report No. 116-F-29-5)
to ANSI Z21.88 (in Canada, CSA-2.33), and
CAN/CGA-2.17-M91 in both USA and Canada,
as vented gas fireplace heaters.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

Both millivolt and electronic versions of
these appliances are listed by OMNI-Test
Laboratories for installation in bedrooms
and Manufactured Homes.

Manufactured Homes -

See Manufactured Home Requirements on
Page 6 for additional information.

WARNING

Improper installation, adjust­ment, alteration, service or
maintenance can cause injury
or property damage. Refer to
this manual. For assistance or
additional information consult
a qualified installer, service

agency or the gas supplier.

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.

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 conversion certifié est installé.

Misc. Codes / Standards -

Installation must conform to local codes. In the
absence of local codes, installation must comply
with the current National Fuel Gas Code, ANSI
Z223.1. (In Canada, the current CAN-1 B149
installation code).

The appliance, when installed, must be electri­cally grounded & wired in accordance with local
codes or, in the absence of local codes, with the
National Electrical Code, ANSI / NFPA 70-latest
edition, or the Canadian Electrical Code, CSA
C22.1 - latest edition.

GENERAL INFORMATION

Note: Installation and repair should be per­formed by a qualified service person. The
appliance should be inspected annually by
a qualified professional service technician.
More frequent inspections and cleanings may
be required due to excessive from carpeting,
bedding material, etc.

S'assurer que le brùleur et le compartiment des
commandes sont propres. Voir les instructions
d'installation et d'utilisation qui accompagnent
l'appareil.

Provide adequate clearances around air open­ings and adequate accessibility clearance for
service and proper operation. Never obstruct
the front openings of the appliance.

These appliances are designed to operate on
natural or propane gas only. To operate on
Propane Gas a field converion is necessary
(see Pages 34 to 36). Do not use any other
fuels. The use of other fuels, or combination
of fuels, will degrade the performance of this
system and may be dangerous.

These fireplaces are designed as supplemen­tal heaters. Therefore, it is advisable to have
an alternate heat source when installed in a
dwelling.

Millivolt Models - The millivolt appliances are
manually controlled and feature a spark igniter
(piezo) that allows the appliance's pilot gas to
be lit without the use of matches or batteries.
This system provides continued service in the
event of a power outage.

Millivolt models come standard with a manu­ally-modulated gas valve; flame appearance and
heat output can be controlled at the gas valve.
The BTU Input for these appliances is shown
in Table 1.

Input (BTU) Manually-Modulated Gas

Valves (millivolt models)

NATURAL & PROPANE GAS

Models Input Rate (BTU / HR)

SSDVT/R-3328

17,500 high

13,500 low

Table 1

Electronic Models

Electronic models have a fixed rate gas valve.
Input of electronic models is shown in Table 2.

Electronic Models with Fixed Rate Gas Valve

Natural and Propane Gas

Model Series Input Rate (BTU / HR)

SSDVT/R-3328 17,500

Table 2

Gas Pressure - All Models

Tables 3, 4 and 5 show the appliances' gas
pressure requirements:

Inlet Gas Supply Pressure

(all models)

Fuel # Minimum Maximum

Natural Gas

Propane

5.0" WC

(1.24 kPa)

11.0" WC

(2.74 kPa)

10.5" WC

(2.61 kPa)

13.0" WC

(3.23 kPa)

Table 3

Manifold Gas Supply Pressure

(millivolt models)

Fuel # Low High

Natural

Gas

Propane

(Lo) 2.2" WC

(.55 kPa)

(Lo) 6.3" WC

(1.57 kPa)

(Hi) 3.5" WC

(.87 kPa)

(Hi) 10.0" WC

(2.49 kPa)

Table 4

Manifold Gas Supply Pressure

(electronic models)

Fuel # Manifold Pressure

Natural Gas 3.5" WC (.87 kPa)

Propane 10.0" WC (2.49 kPa)

Table 5

Test gauge connections are provided on the
front of the millivolt gas control valve, identi­fied IN for the inlet and OUT for the manifold
side. A 1/8" NPT Test gauge connection
is provided at the inlet and outlet side of
the electronic gas control valve.

These appliances must be isolated from the
gas supply piping system (by closing their
individual manual shut-off valve) during any
pressure testing of the gas supply piping
system at test pressures equal to or less than
1/2 psig (3.5 kPa).

These appliances and their individual shut-off
valves must be disconnected from the gas
supply piping system during any pressure
testing of that system at pressures greater

than 1/2 psig (3.5 kPa).

Orifice Sizes - Sea Level to High Altitude
(All Models)

These appliances are tested and approved for
installation at elevations of 0-4500 feet (0-1372
meters) above sea level using the standard
burner orifice sizes (marked with an "*" in
Table 6 ). For elevations above 4500 feet,
contact your gas supplier or qualified service
technician . Install the appliance according to
the regulations of the local authorities having
jurisdiction and, in the USA, the National Fuel
Gas Code NFPA 54 / ANSI Z223.1 - latest edition
or, in Canada, the CAN1-B149.1 and .2 codes

- latest edition.

Burner Orifice Sizes

Elevation 0-4500 feet ( 0-1372 meters)

Model
Series

SSDVT/R-3328

* Standard size installed at factory

Natural

Gas

drill size (inches)

#45

*

Propane

Gas

drill size (inches)

(0.048")

*

Table 6

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

3

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TPT

HT

P

T

P

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O

T

P

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L

O

T

O

N

it

O

F

F

IN

OUT

SIT Millivolt Gas Valve

F

F

O

N
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NO

L

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ER

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I

Honeywell Electronic Gas Valve

Massachusetts Horizontal Vent Re­quirements

HI/LO Variable
Flame Height
Adjustment

Pilot Adjustment
Screw

Manifold Pressure Tap

Inlet Pressure Tap

Main Gas

Control Knob

OFF/PILOT/ON

Figure 1

Honeywell Millivolt Gas Valve

PIEZO

PILOT
ADJUSTMENT
SCREW

TP/TH

TP

TH

WIRING
TERM­INALS

IGNITER

GAS CONTROL
KNOB

INLET
PRESSURE
TAP

Figure 2

CONVERTIBLE
HI/LO REGULATOR
(adjusts flame height
and heat output)

OUTLET
PRESSURE
TAP

Manifold Pressure
Port

ON / OFF Switch

Inlet
Pressure
Port

Electronic Gas
Control Valve

Figure 3

NEW YORK CITY, NY AND MASSA­CHUSETTS REQUIREMENTS

These appliances are approved for instal­lation in the following USA locations listed
in the following:

Massachusetts -

Installation of these fireplaces are ap­proved for installation in the US state of
Massachusetts if the following additional
requirements are met -

• Installation and repair must be done by
a plumber or gas fitter licensed in the
Commonwealth of Massachusetts.

• The flexible gas line connector used shall
not exceed 36 inches (92 centimeters)
in length.

• The individual manual shut-off must be
a T-handle type valve.

In the Commonwealth of Massachusetts,
horizontal terminations installed less than
seven (7) feet above the finished grade
must comply with the following additional
requirements:

• A hard wired carbon monoxide detector
with an alarm and battery back-up must
be installed on the floor level where the
gas fireplace is installed. The carbon
monoxide detector must comply with
NFPA 720, be ANSI/UL 2034 listed and
be IAS certified.

• A metal or plastic identification plate
must be permanently mounted to the
exterior of the building at a minimum
height of eight (8) feet above grade and
be directly in line with the horizontal
termination. The sign must read, in
print size no less than one-half (1/2)
inch in size, “GAS VENT DIRECTLY BE­LOW. KEEP CLEAR OF ALL OBSTRUC­TIONS.”

New York City, New York

These fireplaces are approved for instal­lation in New York City in the US state of
New York.

4

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

COLD CLIMATE INSULATION

For cold climate installations, seal all cracks
around the appliance with noncombustible
material and wherever cold air could enter
the room. It is especially important to insulate
outside chase cavity between studs and under
floor on which the appliance rests, if floor is
above ground level.

Gas line holes and other openings should be
caulked or stuffed with unfaced fiberglass
insulation. If the fireplace is being installed
on a cement slab, in cold climates, a sheet of
plywood or other raised platform can be placed
underneath to prevent conducting cold up into
the room. It also helps to
surfaces and tape for maximum air tightness
and caulk firestops.

sheetrock inside

LOCATION

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 (see
Figure 4 ). The location should also be free
of electrical, plumbing or other heating/air
conditioning ducting.

These direct vent appliances are uniquely
suited for installations requiring a utility shelf
positioned directly above the fireplace. Utility
shelves like these are commonly used for locat­ing television sets and decorative plants. Be

aware that this is a heat producing appliance.
Objects placed above the unit are exposed to
elevated temperatures.

To provide for the lowest possible shelf surface
use the alternate rear vent outlet with attached
venting routed in a way to minimize obstructions
to the use of the space above the appliance. Do

not insulate the space between the appliance
and the area above it. See Figure 9. The mini-

mum height from the base of the appliance to
the underside of combustible materials used to
construct a utility shelf in this fashion is shown
in the Table in Figure 9.

The appliance should be mounted on a fully
supported base extending the full width and
depth of the unit. The appliance may be located
on or near conventional construction materials.
However, if installed on combustible materials,
such as carpeting, vinyl tile, etc., a metal or
wood barrier covering the entire bottom surface
must be used.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

5

MANUFACTURED HOME

(Rear Vent

VERTICAL VENT

Application)

(Rear Vent Application

HORIZONTAL VENT

without a chase)

HORIZONTAL VENT
(Top Vent
Application)

HORIZONTAL VENT
(Rear Vent Application
With a chase)

VERTICAL VENT
(Top Vent
Application)

N

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APPLICATION

TOP VENT

TNEV RAE

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RECESSED

INSTALLATION

TOP VENT

APPLICATION

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TNEV POT

REQUIREMENTS

This appliance may be installed in an after­market permanently located, manufactured
home (USA only) or mobile home, where not
prohibited by local codes.

Cet appareil peut être installé dans un maison
préfabriquée (É.-U. seulement) ou mobile déjà
installée à demeure si les réglements locaux
le permettent.

Manufactured Home installations must be
installed in accordance with these instructions
and the following standards / codes:

• Manufactured Home Construction and
Safety Standard Title 24 CFR, Part 3280, or
the current Standard for Fire Safety Criteria
for Manufactured Home Installations, Sites
and Communities ANSI / NFPA 501A in the
USA, and CAN / CSA Z240 MH Mobile Home
Standard in Canada

• (when applicable) The American National
Standard for Manufactured Homes (NCSBCS
/ ANSI A225.1 - latest edition).

Figure 4 - Typical Locations

6

CAUTIONS

Ensure that the cross members
are not cut or weakened during
installation. The structural integ­rity of the manufactured home
floor, wall, and ceiling / roof must
be maintained.

This appliance must be grounded
to the chassis of the manufac­tured home in accordance with
local codes or in the absence of
local codes, with the National
Electrical Code ANSI / NFPA 70

- latest edition or the Canadian
Electrical Code CSA C22.1 - latest
edition.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

12

X

Roof Pitch is X/12

2 FT
MIN.

2 FT MIN.

Lowest

Discharge

Opening

H*

*H = MINIMUM HEIGHT FROM ROOF TO

LOWEST DISCHARGE OPENING OF VENT

TERMINATION HEIGHTS FOR VENTS ABOVE

FLAT OR SLOPED ROOFS

Horizontal Overhang

Vertical

Wall

Vent

Termination

Storm Collar

Concentric

Vent Pipe

Flashing

1 inch (25.4 mm) Minimum
Clearance to Combustibles

VENT TERMINATION CLEARANCES

3"

(76 mm)

12"

(305 mm)

Termination Kit

Combustible Projection

greater than inches in length

Combustible Projection

2-1/2 inches or less in length

18"

(457 mm)

Ventilated

Soffit

Unventilated

Soffit

Horizontal Vent Termination Clearances

2-1/2

Termination Kit

All horizontal terminations

may be located as close

as 6” (152mm) to any
(non-combustible and

combustible) exterior

sidewall. This distance

may be decreased to

2” (51mm) for non­combustible exterior
sidewalls only, if the

SV4.5HT-2 or SF4.5HT-2

termination

is used.

Horizontal Vent Termination Clearances

These instructions should be used as a guide­line 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.

Terminate multiple vent terminations according to
the installation codes listed above.

Terminate single vent caps relative to building
components according to Figure 5.

Vertical 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. For projections exceeding 2 1/2" (64 mm), see
Figure 6. All horizontal terminations may be located as close as 6" (152mm) to any combustible
exterior sidewall. This distance may be decreased to 2" (51mm) if the SV4.5HT-2 or SF4.5HT-2
termination is used and the exterior sidewall is non-combustible only. For additional vent location
restrictions refer to Figure 7 on Page 8.

Note - See Figure 33 on Page 20 for the exterior wall recess allowances of the square horizontal termination.

The vent / air intake termination clearances
above the high side of an angled roof is as
shown in the following chart:

Termination Heights For Vents

Above Flat Or Sloped Roofs

Ref. NFPA 54 / ANSI Z223.1, 7.6

Roof Pitch * Feet * Meters

Flat to 6/12 1.0 0.3
6/12 to 7/12 1.25 0.38
7/12 to 8/12 1.5 0.46
8/12 to 9/12 2.0 0.61

9/12 to 10/12 2.5 0.76
10/12 to 11/12 3.25 0.99
11/12 to 12/12 4.0 1.22
12/12 to 14/12 5.0 1.52
14/12 to 16/12 6.0 1.83
16/12 to 18/12 7.0 2.13
18/12 to 20/12 7.5 2.29
20/12 to 21/12 8.0 2.44

Figure 5

Figure 6

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

Side Elevation View

7

V

V

V

V

V

F

C

Fixed

Closed

Window

Operable

Window

B

B

A

B

H

M

I

= Area where Termination is not Permitted

= Air Supply Inlet

X

= Vent Termination

V

D

V

3 ft.

3 ft.

A

A

A

= 9 in U.S.
= 12 in Canada

V

L

B

J

X

V

A

G

Inside

Corner Detail

B

C

C

C

*18

Ventilated Soffit

Horizontal
Termination

Detail D

Exterior Wall

Center Line

of Termination

18

Inside Corner

*

See Item D in the Text Below.

V

P

V

O

N

N

Q

NOTE: Local Codes Or Regulations
May Require Different Clearances.

NOTE: Location Of The Vent Termination
Must Not Interfere With Access To The
Electrical Service.

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EXTERIOR HORIZONTAL VENT TERMINATION CLEARANCE REQUIREMENTS

8

Figure 7

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

MINIMUM CLEARANCES TO COMBUSTIBLES

4 (102)

2

(51)

4

(102)

6

(152)

8

(203)

10

(254)

12

(305)

6 (152)

10 (254)

14 (356)

12 (305)

8 (203)

5 (127)

8-1/4
(209)

14

(356)

12 (305)

19

(483)

Shelf Above Fireplace With Rear Venting

Do not insulate the
space between the

appliance and the

area above it.

Shelf Height

(see table)

*Shelf Height

(see table)

Do not insulate the
space between the

appliance and the

area above it.

Shelf Above Fireplace With Top Venting

Appliance and Vent Clearances

Hearth Extension - 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.

Wall Finishes / Surrounds / Mantels

Note: Combustible wall finish materials and/or surround materials must not be allowed to encroach
the area defined by the appliance front face (black sheet metal). Never allow combustible materials
to be positioned in front of or overlapping the appliance front face. See Figure 57 on Page 31.

Non-combustible materials, such as surrounds and other appliance trim, may be installed on the
appliance front face with these exceptions: they must not cover any portion of the removable glass
panel or louvers.

Vertical installation clearances to combustible mantels vary according to the depth of the mantel.
See Figure 8. 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.

Mantel Depth

Top of
Appliance

inches (millimeters)

The appliance is approved with zero clearance to
combustible materials on all sides (as detailed
in Table 8), with the following exception: When
the unit is installed with one side flush with a
wall, the wall on the other side of the unit must
not extend beyond the front edge of the unit.
Refer to Figure 4.

MINIMUM CLEARANCES Inches (millimeters)

Back 1/2 (13)

0 (0) Spacers

Sides 1/2 (13)

0 (0) Spacers

Top Spacers 0 (0)

Floor 0 (0)

Bottom of Appliance

To Ceiling

64 (1626)

Vent 3 (76) Top *

1 (25.4) Sides & Bottom

SERVICE CLEARANCES Feet (meters)

Front 3 ft. (0.9 m)

Table 8

Figure 8 - Minimum Mantel Clearances

Model No.

SSDVT-3328
SSDVR-3328 N/A N/A 33 1/4 (845) 33 1/4 (845)

* Includes 3” clearance to combustibles (required above vent components)

Figure 9 -

Top Vent - with One 90 Degree Elbow Rear Vent - Straight Out the Back

Secure Vent Secure Flex

*

44-1/8

Shelf Height Minimum Clearances

Hood

Combustible Shelf Height - Inches (millimeters)

Secure Vent Secure Flex

N/A N/A

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

(1121)

(flex elbow)

*45-7/8 (1165)

*Note: 3 in. (75 mm) above any horizontal/in­clined vent component.

**Note: See Page 10, Step 1 for clearance
requirements to the nailing flange located
at each side of the unit and any screw heads
adjacent to it.

Minimum Distance to Unprotected Side Wall

Combustible materials may project beyond the sides of the fire­place opening as long as they are kept within the shaded areas
illustrated here.

At 14" minimum
side wall clearance,
a combustible wall
can project to any
length.

At 8-1/4" side
wall clearance, a
combustible wall
can project 12"

o

45

Top View of

Fireplace

Combustible Materials
Allowed In Shaded
Area “Safe Zone”

Combustible Walls
shown in dark gray

Inches (millimeters)

Protected wall shown in white

Figure 10

9

DETAILED INSTALLATION STEPS

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.

Side

Framing

Unit Nailing Flange

(No clearance to

combustible

framing is required)

Left Side Front Corner of Fireplace Shown

(Right Side Requirements the Same)

Unit Being Secured By Its Nailing Flanges

To The Framing

The appliance is shipped with all gas controls
and components installed and pre-wired. Re­move the shipping carton, exposing the front
glass door. Remove the top and bottom louvered
control panel per instructions on Page 27 (see

Control Compartment Access / Louver Panel
Instructions). Remove the cardboard from

underneath the pressure relief plates, in area
behind top louver panel (see Figure 11). 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 54 on Page 30.

Pressure Relief Plates

Step 4. (Page 25) Field Wiring

a. Millivolt Appliances – Install the operating

control switch (not factory provided) and
bring in electrical service line for forced air
circulating blower (optional equipment).

b. Electronic Appliances – Field wire and install

operating control switch.

Step 5. (Page 25) Install blower kit (optional

equipment).

Step 6. (Page 26) Make connection to gas sup-

ply.

Step 7. (Page 27) Checkout appliance operation.
Step 8. (Page 28) Install the logs, decorative

volcanic stone and glowing embers.

Step 9. (Page 30) Install glass door frame as-

sembly.

Step 10. (Page 30) Adjust burner to ensure proper

flame appearance.

Step 11. (Page 31) Install the hoods.

REMOVE

CARDBOARD
BEFORE USING

Remove Cardboard Before
Using Appliance

REMOVE

CARDBOARD
BEFORE USING

Figure 11

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 follow­ing steps for detailed procedures.

Step 1. (Page 10) Construct the appliance

framing. Position the appliance within the
framing and secure with nailing brackets.

Step 2. (Page 10) Route gas supply line to

appliance location.

Step 3. (Page 13) Install the vent system and

exterior termination.

Step 1. FRAMING

Frame these appliances as illustrated in Figure
14 on Page 11, unless the appliance is to be
installed in a corner. See Figure 15 on Page
12 for corner framing installations. All framing

details must allow for a minimum clearance to
combustible framing members as shown in
Table 8 on Page 9.

If the appliance is to be elevated above floor
level, a solid continuous platform must be
constructed.

Headers may be in direct contact with the
appliance top spacers but must not be sup­ported by them or notched to fit around them.
All construction above the appliance must be
self supporting. DO NOT use the appliance for
structural support.

The 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 12. Use 8d nails or their equivalent.

Figure 12

STEP 2. ROUTING GAS LINE

Route a 1/2" (13 mm) gas line along the inside
of the right side framing as shown in Tables.
Gas lines must be routed, constructed and made
of materials that are in strict accordance with
local codes and regulations. All appliances are
factory-equipped with a flexible gas line con­nector and 1/2 inch shutoff valve. (See Step 6

on Page 26).

Right Side Front
Corner of Fire­place Framing

6 1/2"

(152 mm)

Also see Figure 14.

3"

(76 mm)

10

Figure 13 - ROUTE GAS LINE

Continued on Page 12.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

FIREPLACE SPECIFICATIONS

21-1/2

(546)

13

(330)

1/2 (13)

1-5/8
(42)

8-11/32

(212)

3 (76)

Top View

NOTE - Eyebrow
hood shown as positioned
in louvered front model.

*CONCENTRIC FLUE

FLUE - 4-1/2 (114)
COMBUSTION AIR - 7-1/2

FRAMING
SPACERS

(Top and Sides

and Rear)

GAS INLET
(Either Side
and bottom)

Front View

3 (76)

**Rear vent models only

ELECTRICAL INLET
2-3/4 x 2 (70 x 51)
COVER PLATE with
KNOCKOUT)

Right Side View

*SSDVR models have only a rear vent
*SSDVT models have only a top vent

6-13/16

(173)

2-3/4

(70)

33-1/8

(841)

30-1/8

(765)

27-1/2

(699)

17

(432)

**19-5/8

(498)

10-3/4

(273)

33-1/8

(841)

Inches (millimeters)

1 (25)

1

(25)

7

(178)

5-1/8

12-1/8

(308)

10-1/2

(267)

VENT FRAMING ­TOP VENT WITH ONE
90¡ ELBOW

VENT FRAMING ­REAR VENT WITH
NO ELBOWS

Framing should be constructed
of 2 x 4 or larger lumber.

Inches (mm)

(130)

7

(178)

*12-7/8 inches (327 mm) is the
required framing depth dimension
when the finish material (drywall)

thickness is 1/2 in. (13mm).

*12-7/8

(327)

33-1/4

(845)

33-1/4

(845)

16-5/8

(422)

37-1/8

(943)

19-5/8

(498)

FRAMING WITH SQUARE HORIZONTAL TERMINATION (SV4.5HT-2)

5-1/8

(130)

12-1/8

(308)

Notes

Due to Lennox' ongoing commitment to quality,
all specifications, ratings and dimensions are
subject to change without notice.

Vent Size

Co-axial DV Vent Size

Vertical Venting Through the Ceiling:

Frame ceiling opening - Use a plumb
line from the ceiling above the appli­ance to locate center of the vertical run.
Cut and/or frame an opening, 10-1/2"
x 10-1/2" (267 mm x 267 mm) inside
dimensions, about this center mark (see
Figure 19).

4-1/2" Inner
7-1/2" Outer

Figure 14

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

11

*34-5/16

(872)

Back wall of chase/enclosure (including any finishing materials)

a

8-3/16 (208)

b

Note­Venting requirements for rear vent applications in corner installations -

- the horizontal vent length a to b, must not exceed 28 inches (711 mm)

*17-3/16

(437)

Inches

(millimeters)

*These dimensions occur when one 45

degree elbow is connected directly to the

appliance collar and the unit moved 1/2

in. (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.

*F = 5 in.
(127 mm)

*24-1/4

(616)

33-1/8

(841)

*48-1/2

(1232)

SV4.5HTSS & SV4.5HTSSL

Termination

Framing should be constructed of
2x4 or larger lumber.

7 (178)

b

SV4.5HT-2 Termination

FIREPLACE FRAMING SPECIFICATIONS

Figure 15

Corner Framing with Square Termination (SV4.5HT-2)

Proper Sizing of Gas Line

Properly size and route the gas supply line
from the supply regulator to the area where
the appliance is to be installed per require­ments outlined in the National Fuel Gas Code,
NFPA 54 - latest edition (USA) or B149 - latest
edition (Canada).

Never use galvanized or plastic pipe. Refer to
Table 9 for proper sizing of the gas supply line,
if black iron pipe is being used. Gas lines must
be routed, constructed and made of materials
that are in strict accordance with local codes
and regulations. We recommend that a quali­fied individual such as a plumber or gas fitter
be hired to correctly size and route the gas
supply line to the appliance. Installing a gas
supply line from the fuel supply to the appliance
involves numerous considerations of materials,
protection, sizing, locations, controls, pressure,
sediment, and more. Certainly no one unfamiliar
and unqualified should attempt sizing or install­ing gas piping.

Schedule 40 Pipe

Table 9

Notes:

• All appliances are factory-equipped with a

• See

• The gas supply line should Not be connected

Schedule 40 / Black Iron Pipe

Inside Diameter (Inches)

Natural

Length (feet)

0-10 1/2 3/8

Gas

10-40 1/2 1/2

Propane

Gas

40-100 1/2 1/2
100-150 3/4 1/2
150-200 3/4 1/2

flexible gas line connector and 1/2 inch shutoff
valve (see Figure 46 on Page 26 ).

Massachusetts Requirements on Page

4 for additional requirements for installations

in the state of Massachusetts in the USA.

to the appliance until Step 6 (Page 26).

• A pipe joint compound rated for gas should be

used on the threaded joints. Ensure propane
resistant compounds are used in propane
applications. Be very careful that the pipe
compound does not get inside the pipe.

• It is recommended to install a sediment trap
in the supply line as close as possible to the
appliance (see Figure 46). Appliances using
Propane should have a sediment trap at the
base of the tank.

• Check with local building official for local code
requirements (i.e. are below grade penetrations
of the gas line allowed, etc).

IMPORTANT: If propane is used, be aware that
if tank size is too small (i.e. under 100-lbs, if
this is the only gas appliance in the dwelling.
Ref. NPFA 58), there may be loss of pressure,
resulting in insufficient fuel delivery (which
can result in sooting, severe delayed ignition
or other malfunctions). Any damage resulting
from an improper installation, such as this, is
not covered under the limited warranty.

12

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

Step 3. INSTALL THE VENT SYSTEM

General Information

These instructions should be used as a guide­line 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.

Use only approved venting components. See
Approved Vent Components on Page 2.

These fireplaces must be vented directly
to the outside.

The vent system may not service multiple
appliances, and must never be connected to a
flue serving a solid fuel burning appliance. The
vent pipe is tested to be run inside an enclosing
wall (such as a chase). There is no requirement
for inspection openings in the enclosing wall at
any of the joints in the vent pipe.

WARNING

Failure to reinstall and securely
tighten cover plate screws could
result in leakage of flue products
into the living space. Vent cover
plate and vent seal plate must
remain securely installed on
unused vent collar. Failure to do
so could result in leakage of flue
products into living space.

Installation of Vent Restrictor

A vent restrictor may be needed with this appliance,
install vent restrictor (provided) in the appliance top
flue outlet as shown in Figure 16 (SSDVT-3328 )
or rear flue outlet as shown in Figure 17 (SSDVR-
3328 ). It is held in place by friction, only.

Vent Restrictor Installation

(Top Vent)

A vent restrictor may be needed when verti­cally terminating the vent system above the roof
(when using the appliance top vent), install vent
restrictor in the top vent of the fireplace outlet on
SSDV-3328 series models. If needed, install the
restrictor orientated as shown, either from inside
or outside the unit,in the inner fireplace collar.

Restrictor

Inner
Fireplace
Collar

Appliance Top

Vent Outlet

Figure 16

VENT RESTRICTOR INSTALLATION

A vent restrictor may be needed when horzon­tally terminating the vent system from the rear
of the appliance (when using the appliance rear
vent), install vent restrictor in the rear vent of
the fireplace outlet on SSDV-3328 series mod­els, in any installation that has a vertical vent
run in excess of three feet (0.914 meters).

If needed, install the restrictor orientated as
shown, either from inside or outside the unit,
in the inner fireplace collar

Inner Fireplace

Collar

(REAR VENT)

Appliance Rear
Vent Outlet

Restrictor

Figure 17

Select Venting System - Horizontal or Vertical

With the appliance secured in framing, de­termine vent routing and identify the exterior
termination location. The following sections
describe vertical (roof) and horizontal (exterior
wall) vent applications. Refer to the section
relating to your installation. A list of approved

venting components is shown on Pages 32
through 34.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

13

SV4.5CG

V-

1

T

ermination

SV4.5F

A OR
SV4.5FB Flashing
AND SV4.5S

C

STORM COLLA

R

�

SV4.5VF

Firestop/Sp

a

ce

r

SV

4

.5L6/12/24/36/4

8

V

ent Sections

40' Ma

x

(12.2 M)

1" (25.4 mm

)
Minimum
Clearance to
Combustibles

�

W

hen using Secure

F

le

x

use

Firestop/Spacer

SF4.5V

F

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VERTICAL TERMINATION SYSTEMS (ROOF)

Figure 21 (Page 15), and Figures 26 to
30 (Pages 17 and 18) and their associated

Vertical Vent Tables illustrate the various verti­cal 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 minimum 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 edition) (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 5 on Page 7).

14

Vertical (Straight) Installation

Determine the number of straight vent sections
required. 4-1/2" (114 mm), 10-1/2" (267 mm),
22-1/2" (572 mm), 34-1/2" (876 mm) and 46­1/2" (1181 mm) net section lengths are available
(see Table 11 and Page 32 - Item 3). Plan the
vent lengths so that a joint does not occur at
the intersection of ceiling or roof joists. Refer
to the Vent Section Length Chart.

Figure 18

VENT SECTION LENGTH CHART

Nominal

Section Length

(inches)

Net Section

Length (inches)

Height of Vent Number of Vent Sections

*inches feet

6 12 24 36 48

4 ½ 10 ½ 22 ½ 34 ½ 46

T
O
T
A
L

½

Q
T
Y

VENT SECTION LENGTH CHART

Nominal Section

Length (inches)

Net Section

Length (inches)

Height of Vent Number of Vent Sections

*inches feet

6 12 24 36 48

4 ½ 10 ½ 22 ½ 34 ½ 46 ½

Table 10b

T
O
T
A
L

Q
T
Y

Effective Vent Length

Table 10a

* Convert inches into metric equiva­lent measure, as follows:

Millimeters (mm) = Inches x 25.4
Centimeters (cm) = Inches x 2.54
Meters (M) = Inches x .0254

Model Effective Length

SV4.5L6 4-1/2"
SV4.5L12 10-1/2"
SV4.5L24 22-1/2"
SV4.5L36 34-1/2"
SV4.5L48 46-1/2"

Table 11

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

Vertical (Offset) Installation

Analyze the vent routing and determine the
quantities of vent sections and number of elbows
required. Refer to Vertical Vent Figures and
Tables on Pages 17 and 18 to select the type
of vertical installation desired. Vent sections
are available in net lengths of 4-1/2" (114 mm),
10-1/2" (267 mm), 22-1/2" (572 mm), 34-1/2 "
(876 mm) and 46-1/2" (1181 mm). Refer to the
Vent Section Length Chart on Page 14 for an
aid in selecting length combinations. Elbows are
available in 90° and 45° configurations. Refer
to Figure 22 on Page 16 for the SV4.5E45 and
SV4.5E90 elbow dimensional specifications.

Where required, a telescopic vent section
(SV4.5LA) may be used to provide the installer
with an option in installing in tight and 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 end
with 3 pilot holes. Slip the plain end over the
locking channel end of a standard SV4.5 vent
component the required distance and secure
with three screws.

Maintain a minimum 1" (25 mm) clearance to
combustible materials for all vertical elements.
Clearances for all horizontal elements are 3"
(76 mm) on top, 1" (25 mm) on sides and 1"
(25 mm) on the bottom.

A. Frame ceiling opening - Use a plumb line

from the ceiling above the appliance to locate
center of the vertical run. Cut and/or frame an
opening, 10-1/2" x 10-1/2" (267mm x 267mm)
inside dimensions, about this center mark
(Figure 19 ).

10-1/2" Min.

(267 mm)

10-1/2" Min.

(267 mm)

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 20).

All of the appliances covered in this document
are fitted with collars having locking inclined
channels. The dimpled end of the vent com­ponents fit over the appliance collar to create
the positive twist lock connection.

Align the dimple (four places) of the
upper vent section with the opening
of the locking incline channel on the
lower vent section or appliance col­lar. Twist vent component clockwise
to engage and seal until arrow and

Arrow

Appliance Collar or
Vent Section

dimple align.

Dimple

Locking Incline
Channel

Connected Vent
Sections

Arrow

Figure 20

To attach a vent component to the appliance collar,
align the dimpled end over the collar, adjusting the
radial alignment until the four locking dimples are
aligned with the inlet of the four inclined channels
on the collar (refer to Figure 20). Push the
vent component against the collar until it fully
engages, then twist the component clockwise,
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 securely lock when twisted.

Note: An elbow may also be attached to the
appliance collar. Attach in the same manner
as you would a vent section.

C. Attach vent components to each other

- Other vent sections may be added to the

previously installed section in accordance with
the requirements of the vertical vent Figures
and Tables.

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.

Push the vent component against the previous
section 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. This seating position

is indicated by the alignment of the arrow and
dimple as shown in Figure 20.

D. Install firestop/spacer at ceiling - When

using Secure Vent, use SV4.5VF firestop/spacer
at ceiling joists; when using Secure Flex, use
SF4.5VF firestop/spacer. If there is living space
above the ceiling level, the firestop/spacer
must be installed on the bottom side of the
ceiling. If attic space is above the ceiling, the
firestop/spacer must be installed 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) clearance to combustibles, framing
members, and attic or ceiling insulation
when running vertical chimney sections.
Attic insulation shield (96K94) may be used
to obtain the required clearances indicated
here. See installation accessories, Pages

32 through 34.

E. Support the vertical vent run sections -

Note - Proper venting support is very important.
The weight of the vent must not be supported
by the firplace in any degree.

Support the vertical portion of the venting
system every 8 feet (2.4m) above the fireplace
vent outlet.

Blocking

Support Straps
(Plumber's tape)

8 feet (2.4 m)

Maximum

Figure 19

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

1 inch (25.4
mm) minimum
clearance to
combustibles

Figure 21

15

One method of support is by utilizing field pro-

7-5/8”

(194 mm)

4-13/16

(122 mm)

C

D

vided support straps (conventional plumber's
tape). Secure the plumber's tape to the framing
members with nails or screws. 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 21.

F. Change vent direction to horizontal/inclined
run - At transition from or to a horizontal/in-

clined run, install the SV4.5E45 and SV4.5E90
elbows in the same manner as the straight vent
sections. The elbows feature a twist section to
allow them to be routed about the center axis
of their initial collar section to align with the
required direction of the next vent run element.

Twist elbow sections in a clockwise direction
only so as to avoid the possiblity of unlocking
any of the previously connected vent sections.

See Figure 22.

8-1/8"

(206 mm)

Swivel Joint

(360° swivel)

SV4.5E45

45° Elbow)

Swivel Joint

(360° swivel)

SV4.5E90

90° Elbow)

Figure 22

G. Continue installation of horizontal/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 ft. (1.52 m) along horizontal/inclined
vent runs using conventional plumber’s tape.

See Page 19, Figure 31. It is very important
that the horizontal/inclined run be maintained
in a straight (no dips) and recommended to be
in a slightly elevated plane, in a direction away
from the fireplace of 1/4 " rise per foot (20 mm

per meter) which is ideal, though rise per foot
run ratios that are smaller are acceptable all the
way down to at or near level. Use a carpenter’s
level to measure from a constant surface and
adjust the support straps as necessary.

Framing Dimensions for Roof

Inches (millimeters)
Pitch C D
0/12 10-1/2 in.

(267 mm)

6/12 10-1/2 in.

(267 mm)

12/12 10-1/2 in.

(267 mm)

10-1/2 in.
(267 mm)

12 in.

(305 mm)
17 3/4 in.

(451 mm)

Figure 23 - Roof Framing

I. Install the roof flashing - Extend the vent
sections through the roof structure. Install the
roof flashing over the vent section and posi­tion such that the vent column rises vertically
(use carpenters level) (Figure 24 ). Nail along
perimeter to secure flashing or adjust roofing
to overlap the flashing edges at top and sides
only and trim where necessary. Seal the top
and both sides of the flashing with waterproof
caulking.

J. Install the storm collar - Install the storm
collar, supplied with the flashing, over the
vent/flashing joint. See Figure 24. Loosen the
storm collar screw. Slide collar down until it
meets the top of the flashing. Tighten the ad­justing screw. Apply non-combustible caulking
or mastic around the circumference of the joint
to provide a water tight seal.

Storm
Collar

K. Install the vertical termination - The final
step involves installation of the SV4.5CGV-1
Vertical Termination. Extend the vent sections
to the height as shown in the "Vertical vent ter­mination section" on Page 7. The SV4.5CGV-1
Vertical Termination (Figure 25) can be installed
in the exact same fashion as any other Secure
Vent section. Align the termination over the
end of the previously installed section, adjust­ing the radial alignment until the four locking
dimples of the termination are aligned with
the inlets of the four incline channels of the
last vent section. Push the termination down
until it fully engages, then twist the termination
clockwise running the dimples down and along
the incline channels until they are seated at the
end of the channels.

Figure 25

If the vent system extends more than 5 feet (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.

It is important to maintain the required clear­ances to combustibles: 1" (25 mm) at all sides
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.

H. Frame roof opening - Identify location for
vent at the roof. Cut and/or frame opening per
Roof Framing Chart and Figure 23.

16

Figure 24

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

V

H

H

V

V1

VERTICAL VENT FIGURES/TABLES

Note: Secure Vent (rigid vent pipe) is shown
in the Figures; Secure Flex (flexible vent pipe)
may also be used.

WARNING

Under no circumstances, may sepa­rate sections of concentric flexible
vent pipe be joined together.

Notes:

• It is very important that the horizontal/in
clined run be maintained in a straight (no
dips) and recommended to be in a slightly

elevated plane, in a direction away from the
fireplace of 1/4" rise per foot (20 mm per
meter) which is ideal, though rise per foot
run ratios that are smaller are acceptable all
the way down to at or near level.
SV4.5VF (Secure Vent), SF4.5VF (Secure

•

Flex) firestop/spacer must be used anytime
vent pipe passes through a combustible
floor or ceiling. SV4.5HF (Secure Vent),
SF4.5HF (Secure Flex)firestop/spacer must
be used anytime vent pipe passes through
a combustible wall.
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.

• AN ELBOW IS ACCEPTABLE AS 1 FOOT OF
VERTICAL RISE EXCEPT WHERE AN ELBOW
IS THE ONLY VERTICAL COMPONENT IN
THE SYSTEM (See Figure 35).

u Ceiling Firestop /

Spacer (SV4.5VF)

40 feet

(12.2 meters)

Maximum

Table A

H Maximum

feet (meter) feet (meter)

2 (0.610) 1 (0.305)
4 (1.219) 2 (0.610)
6 (1.829) 3 (0.914)
8 (2.438) 4 (1.219)

V + H = 40 feet (12.2 meters) Max.

-

H = 8 feet (2.4 meters) Max.

Ratio V to H ratio is 1:2

Example: If 8 feet of (H) horizontal vent run

is needed, then 4 feet minimum (V) vertical
vent will be required.

This table shows a 1(V) to 2(H) ratio. For
every 1 foot of (V) vertical, you are allowed 2
feet of (H) horizontal run, up to a maximum
horizontal run of 8 feet.

Figure 27 - Rear Vent - ONE 90 DEGREE ELBOW

u Ceiling Firestop /

Spacer (SV4.5VF)

V Minimum

u When using Secure Flex, use Firestop /

Spacer SF4.5VF.

Ceiling Firestop /

u

Spacer (SV4.5VF)

Table B

H Maximum V Minimum

feet (meter) feet (meter)

5 (1.524) Elbow Only

5 (1.524) 1 (0.305)
10 (3.048) 2 (0.610)
15 (4.572) 3 (0.914)
20 (6.096) 4 (1.219)

V + V

+ H = 40 feet (12.2 m) Max.

1

H = 20 feet (6.096 meters) Max.

Example: If 20 feet of (H) horizontal vent run
is needed, then 4 feet minimum of (V) vertical
vent will be required.

vWall Firestop/

When using Secure Flex, use Firestop / Spacer

u

SF4.5VF

A Vent Restrictor, as shown in Figure 18
Page 13, must be used in this application

u When using Secure Flex, use Firestop /
v When using Secure Flex, use Firestop /

Figure 28 - Top Vent - TWO 90 DEGREE ELBOWS

Spacer (SV4.5HF)

Spacer SF4.5VF.

Spacer SF4.5HF.

This table shows a 1(V) to 5(H) ratio. For
every 1 foot of (V) vertical, you are allowed 5
feet of (H) horizontal run, up to a maximum
horizontal run of 20 feet.

An elbow is acceptable as 1 foot of vertical
rise except where an elbow is the only vertical
component in the system. See Figure 35.

Figure 26 - Top Vent - STRAIGHT

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

17

H1

V

V1

H

V

H

1

H

V

1

VERTICAL VENT FIGURES/TABLES (CONTINUED)

Table C

H+H

Maximum H Maximum V Minimum

1

feet (meter) feet (meter) feet (meter)

5 (1.524) 2 (0.610) 1 (0.305)
10 (3.048) 4 (1.219) 2 (0.610)
15 (4.572) 6 (1.829) 3 (0.914)
20 (6.096) 8 (2.438) 4 (1.219)

V + V1 + H + H1 = 40 feet (12.2 m) Max

H = 8 feet (2.438 meters) Max.

H + H

= 20 feet (6.096 meters) Max.

1

u When using Secure Flex, use Firestop / Spacer SF4.5VF
v When using Secure Flex, use Firestop / Spacer SF4.5HF

Example: If 20 feet total (H+H1) horizontal vent run is needed,
then 4 feet minimum of (V) vertical vent will be required.

This table shows a 1(V) to 5(H) ratio. For every 1 foot of (V)
vertical, you are allowed 5 feet of (H+H1) horizontal run up to a
maximum total horizontal run of 20 feet.

Figure 29 - Rear Vent - THREE ELBOWS

Ceiling

u

Firestop / Spacer
(SV4.5VF)

Wall Firestop/

v

Spacer (SV4.5HF)

Ceiling

u

Firestop / Spacer
(SV4.5VF)

Table D

H + H

Maximum

1

V Minimum

feet (meter) feet (meter)

5 (1.524) Elbow Only

5 (1.524) 1 (0.305)
10 (3.048) 2 (0.610)
15 (4.572) 3 (0.914)
20 (6.096) 4 (1.219)

H + H1 = 20 feet (6.096 m) Max.

V + V1 + H + H1 = 40 ft. (12.192 m) Max.

Example: If 20 feet total (H+H1)
horizontal vent run is needed,
then 4 feet minimum of (V) verti­cal vent will be required.

This table shows a 1(V) to 5(H)
ratio. For every 1 foot of (V)
vertical, you are allowed 5 feet
of (H+H1) horizontal run up to
a maximum total horizontal run
of 20 feet.

An elbow is acceptable as 1 foot
of vertical rise except where
an elbow is the only vertical
component in the system. See
Figure 35.

Ceiling

u

Firestop / Spacer
(SV4.5VF)

Wall Firestop/

v

Spacer (SV4.5HF)

u When using Secure Flex, use Firestop / Spacer SF4.5VF
v When using Secure Flex, use Firestop / Spacer SF4.5HF

Figure 30 - Top Vent - THREE ELBOWS

HORIZONTAL (OUTSIDE WALL)
TERMINATION SYSTEM

Figure 31, and Figures 34 to 40 on Pages
21 to 23 and their associated Horizontal Vent

Table illustrate the various horizontal venting
configurations that are possible for use with
these appliances. Secure Vent pipe applications
are shown in these Figures; Secure Flex pipe
may also be used. A Horizontal Vent Table sum­marizes each system’s minimum and maximum
vertical and horizontal length values that can be
used to design and install the vent components
in a variety of applications.

18

Both of these horizontal vent systems terminate
through an outside wall. Building Codes limit or
prohibit terminating in specific areas. Refer to

Figure 7 on Page 8 for location guidelines.

Secure Vent SV4.5 direct vent system compo-

nents are unitized concentric pipe components
featuring positive twist lock connection, (refer
to Figure 20 on Page 15). All of the appli-
ances covered in this document are fitted with
collars having locking inclined channels. The
dimpled end of the vent components fit over
the appliance collar to create the positive twist
lock connection.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

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. Plan the
vent lengths so that a joint does not occur at the
intersection of ceiling or roof joists. Make allow­ances for elbows as indicated in Figure 22.

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.

Building

Support

Framing

SV4.5E90

Elbow

Ceiling

Vertical

Rise

Support Brackets

u Firestop / Spacer

SV4.5VF

u When Using Secure Flex,

Use Firestop / Spacer SF4.5VF

See Figure 18 on Page 14 or Figure 21 on

Page 15 for vertical vent section support.

Figure 31 - TYPICAL HORIZONTAL VENT INSTALLATION

Horizontal / Inclined Run

Support Bracket Spacing

Every 5 ft (1.52 m)

Fireplace

SV4.5L6/12/24/36/48

Vent Sections

SV4.5HT-2

Termination

Shown

Exterior

Wall

SV4.5HT-2

Termination

Shown

B. Frame exterior wall opening -

Locate the center of the vent outlet on
the exterior wall according to the dimen­sions shown in Figure 14 on Page 11. Cut
and/or frame an opening, 10-1/2" x 12-1/8"
(267 mm x 308mm) inside dimensions, about
this center.

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, 10-1/2" x 10-1/2" (267 mm x 267
mm) inside dimensions, about this center (refer
to Figure 19 on Page 15).

D. Attach vent components to appliance - To
attach a vent component to the appliance collar,
align the dimpled end over the collar, adjust­ing the radial alignment until the four locking
dimples are aligned with the inlets of the four
incline channels on the collar (refer to Figure
20 on Page 15).

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 elements with the same
procedure. Sealant and securing screws are
not required.

Note: An elbow may also be attached to the
appliance collar. Attach in the same manner
as you would a vent section.

E. Attach vent components to each other

- Other vent sections may be added to the pre-

viously 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
component clockwise running the dimples down
and along the incline channels until they seat at
the end of the channels.This seating position

is indicated by the alignment of the arrow and
dimple as shown in Figure 20 on Page 15.

F. Install firestop/spacer at ceiling -

When using Secure Vent, use SV4.5VF firestop/
spacer at ceiling joists; when using Secure Flex,
use SF4.5VF firestop/spacer.

If there is living space above the ceiling level,
the firestop/ spacer must be installed on the
bottom side of the ceiling. If attic space is
above the ceiling, the firestop/ spacer must be
installed 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) clearance
to combustibles, framing members, and attic
or ceiling insulation when running vertical
chimney sections.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

G. Support the vertical run sections ­See Section E on Page 15.

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
sections. See Figure 22 on Page 16.

I. Continue installation of horizontal/inclined
sections - Continue with the installation of the

straight vent sections in horizontal/inclined run
as described in Step E. Install support straps
every 5 ft. (1.52 m) along horizontal/inclined
vent runs using conventional plumber’s tape.
See Figure 31. It is very important that the

horizontal/inclined run be maintained in a
straight (no dips) and recommended to be in

a slightly elevated plane, in a direction away
from the fireplace of 1/4" rise per foot (20 mm
per meter) which is ideal, though rise per foot
run ratios that are smaller are acceptable all
the way down to at or near level.

It is important to maintain the required clear­ances to combustibles: 1" (25 mm) at all sides
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.

19

Siding

Stucco

1-1/4” Maximum Recess of
Square Termination
into Exterior Finishing Material

Exterior Surface of
Framing

Exterior Surface of Siding

Maximum Extent of
Vent Run Sections
Relative to Exterior
Surface of Framing

Interior Surface of
Finished Wall

Last Vent Section.
Use Telescopic Vent
Section (SV4.5LA), If
Necessary

Adapter

SV4.5RCH



Use silicone caulking to seal
the top and sides of the
termination, up to the

underlayment, stucco, or
masonry wall surface.



Caulk



Caulk

Maximum Wall Thickness
10 in. (254 mm)

6 in. to 9-1/4 in.
(152 to 235 mm)





10¹⁄₂"

(267mm)

7"

(178)

5¹⁄₈"

(130 mm)

12¹⁄₈"

(308 mm)

Note: Centerline of Vent Piping is

NOT the Same as the Centerline of

the Framed Opening.

6 to 48 inch Vent Section,

Telescopic vent section,

Elbow or Appliance Collar

Base of Appliance

3"

(76 mm)

1"

(25.4 mm)

Adapter

SV4.5RCH

To help minimize water infiltration it is
recommended that the Firestop/Spacer

(SV4.5HF) be installed on the exterior

side of the wall.

J. Assemble vent run to exterior wall - If not
previously measured, locate the center of the
vent at the exterior wall. Prepare an opening as
described in Step B. Assemble the vent system
to point where the terminus of the last section is
located relative to the exterior surface to which
the termination is to be attached (see Figures
32 & 33 and Table 12 on Page 21.

If the terminus of the last section is not within
this distance, use the telescopic vent section
SV4.5LA, as the last vent section. For wall thick­nesses greater than that shown in Figure 33 on
Page 20 and Table 12 on Page 21. This table
lists the additional venting components needed
(in addition to the termination and adapter) for
a particular range of wall thicknesses.

K. Attach termination adapter - Attach the
adapter (adapter - SV4.5RCH - provided with the
termination) to the vent section or telescoping
vent section, elbow or appliance collar as shown
in Figures 32 & 33 in the same manner as any
SV4.5 vent component (refer to Step E).

L. Install Firestop/Spacer at exterior wall

- When using the square termination, install

SV4.5HF (Secure Vent), 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
32, and nail into place.

SV4.5 HT-2
Termination

See Figure 14 on Page 11 for Min.
Distance to Base of Appliance.

Figure 32 - INSTALLING SQUARE HORIZONTAL TERMINATION (SV4.5HT-2 or SF4.5HT-2)

(The Firestop/Spacer may also be installed over
the opening at the interior side of framing).

M. Install the Square Termination (SV4.5HT-2
or SF4.5HT-2)

Install the square termination - For the last step

, from outside the exterior wall, slide the collars
of the termination onto the adapter (the outer
inside the outer and the inner outside the inner)
until the termination seats against the exterior
wall surface to which it will be attached. Orient
the housing of the termination with the arrow
pointed upwards. Secure the termination to
the exterior wall. The horizontal termination

must not be recessed into the exterior wall
or siding by more than the 1-1/4" (32 mm) as

shown in Figure 33.

IMPORTANT

The vent termination is hot while
in operation and for a period of
time following the use of the fire­place. To prevent contact with hot
surfaces, we recommend the use
of a Termination Guard. See Items

12 and 13 on Page 32. This can be
purchased at your local dealer.

20

SV4.5 HT-2

Termination

SV4.5 HT-2

Termination

For thicknesses greater

v

than 10", see Table 12

Figure 33

Horizontal terminations have been designed to perform in a wide range of
weather conditions. Our terminations meet or exceed industry standards.

When selecting the locations of your horizontal terminations, do not place the
termination where water from eaves and adjoining rooflines may create a heavy

Venting Connection and Exterior Wall Recessing of the Horizontal Square
Termination (SV4.5HT-2 or SF4.5HT-2).

flow of cascading water onto the termination cap. If the cap must be placed
where the possibility of cascading water exists, it is the responsibility of the
builder to direct the water away from the termination cap by using gutters or
other means.

Take care to carefully follow the installation instructions for the termination,
including the use of silicone caulking where required.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

H

H = 28 in. (711 mm) Maximum.

7 in. (178 mm)

�

When using Secure Flex,
use Firestop/Spacer

SF4.5HF

�

Wall Firestop/Spacer

(SV4.5HF)

H

V



Wall Firestop/Spacer

(SV4.5HF)



When using Secure Flex,
use Firestop/Spacer

SF4.5VF.



C

eiling

Firestop/S

p

acer

(SV4.5

VF

)



When using Secure Flex

,

use Firestop/Spacer

SF4.5HF.

H

�

Wall

Firestop/Spacer

(SV4.5HF)

V

�

When using Secure Flex,
use Firestop/Spacer

SF4.5HF

HORIZONTAL VENT FIGURES/TABLES

Notes:

• Secure Vent

the Figures; Secure Flex components (flexible vent pipe and terminal)
may also be used.
Two 45 degree elbows may be used in place of one 90 degree elbow.

•

The same rise to run ratios, as shown in the venting Figures for 90
elbows,must be followed if 45 degree elbows are used.
SV4.5VF (Secure Vent), SF4.5VF (Secure Flex) firestop/spacer must

•

be used anytime vent pipe passes through a combustible floor or ceil­ing. SV4.5HF (Secure Vent), SF4.5HF (Secure Flex) firestop/spacer
must be used anytime vent pipe passes through a combustible wall.

• It is very important that the horizontal/inclined run be maintained
in a straight (no dips) and recommended to be in a slightly elevated

plane, in a direction away from the fireplace of 1/4" rise per foot (20
mm per meter) which is ideal, though rise per foot run ratios that are
smaller are acceptable all the way down to at or near level.
The tables show a 1(V) to 5(H) ratio up to a maximum horizontal run

•

of 20 feet except for installations where an elbow is the only vertical
vent section in the system (see Figure 35).

• AN ELBOW IS ACCEPTABLE AS 1 FOOT OF VERTICAL RISE EXCEPT
WHERE AN ELBOW IS THE ONLY VERTICAL COMPONENT IN THE
SYSTEM. See Figure 35.

components (rigid vent pipe and terminal) are shown in

WARNING

Under no circumstances, may separate sections of
concentric flexible vent pipe be joined together.

Table F

H Maximum V Minimum

feet (meter) feet (meter)

3 (0.914) Elbow Only

Square termination
(SV4.5HT-2) shown.

Venting Components Required for Various Exterior Wall Thick-

nesses, when using Square Termination Kit (SV4.5HT-2)

Vent Components Required Exterior Wall Thickness - inches (mm)

Termination Kit Only 6 to 9-1/4 (152 to 235)
Termination Kit and 6 In. Vent

Section (SV4.5L6)
Termination Kit and 12 in.

Vent Section (SV4.5L12)
Termination Kit and Tele-

scopic Section (SV4.5L12)

Table 12

10-3/4 to 14 (273 to 356)

16-3/4 to 20 (426 to 508)

11-3/4 to 20 (299 to 508)

Note: See Figure 33 showing wall thickness range
when using SV4.5HT-2 termination kit only.

See Table 12 as an aid in venting component selection for a particular
range of exterior wall thicknesses.

See Table 12 as an aid in venting component selection for a particular
range of exterior wall thicknesses.

Figure 35 - Top Vent -

ONE 90 DEGREE ELBOW - ELBOW CONNECTION AT APPLIANCE

Table G

H Maximum

V Minimum

feet (meter) feet (meter)

5 (1.524) 1 (0.305)
10 (3.048) 2 (0.610)
15 (4.572) 3 (0.914)
20 (6.096) 4 (1.219)

V + H = 40 feet (12.2 m) Max.

H = 20 ft. (6.096 m) Max.

Square termination
(SV4.5HT-2) shown.

Example: If 20 feet of (H) hori-

zontal vent run is needed, then
4 feet minimum of (V) vertical
vent will be required.

This table shows a 1(V) to
5(H) ratio. For every 1 foot of
vertical, you are allowed 5 feet
of (H) horizontal run up to a
maximum (H) horizontal run
of 20 feet.

See Table 12 as an aid in venting component selection for a particular
range of exterior wall thicknesses.

Figure 34 - Rear Vent - NO ELBOWS - Square Horizontal

Termination (SV4.5HT-2)

Square termination
(SV4.5HT-2) shown.

See Table 12 as an aid in venting
component selection for a particular
range of exterior wall thicknesses.

Figure 36 - Top Vent - ONE 90 DEGREE ELBOW -

ELBOW CONNECTION NOT DIRECTLY AT APPLIANCE

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

21

H

1

V

H



Wall

Firestop/Spacer

(SV4.5HF)



Ceiling

Firestop/Spacer

(SV4.5VF)



Wh

en using

Secure Flex, use

Firestop/Spacer

SF4.5HF.



When using

Secure Flex, use

Firestop/Spac

er

SF4.5VF.

V

H

H

1



Wall Firestop/Spacer

(SV4.5HF)



Wall Firestop/Spacer

(SV4.5HF)



When

using

Secure Flex

,

us

e

Firestop/Spacer

SF4.5HF.



Ceiling

Firestop/Spacer

(SV4.5VF)



Note - When usin

g

Secure Fle

x, us

e

Firesto

p

/Spacer SF4.5VF.

HORIZONTAL VENT FIGURES / TABLES (CONTINUED)

Table H

H

+H

Maximum H Maximum

1

V Minimum

feet (meter) feet (meter) feet (meter)

5 (1.524) 2 (0.610) 1 (0.305)
10 (3.048) 4 (1.219) 2 (0.610)
15 (4.572) 6 (1.829) 3 (0.914)
20 (6.096) 8 (2.438) 4 (1.219)

V + H + H1 = 40 feet (12.2 m) Max

H = 8 feet (2.438 meters) Max.

H + H

= 20 feet (6.096 meters) Max.

1

Example: If 20 feet of (H + H1) horizontal vent run is needed,
then 4 feet minimum of (V) vertical vent will be required.

This table shows a 1(V) to 5(H) ratio. For every 1 foot of (V)
vertical, you are allowed 5 feet of (H+ H1) horizontal run, up
to a maximum horizontal run of 20 feet.

See Table 12 on Page 21 as an aid in venting component
selection for a particular range of exterior wall thick­nesses.

Figure 37 - Rear Vent - TWO 90 DEGREE ELBOWS

Figure 38 - Top Vent - TWO 90 DEGREE ELBOWS

Square termination (SV4.5HT-2) shown.

Square termination (SV4.5HT-2) shown.

See Table 12 on Page 21 as an aid in venting
component selection for a particular range of
exterior wall thicknesses.

Table J

H + H1 Maximum

V Minimum

feet (meter) feet (meter)

3 (0.914) Elbow Only

5 (1.524) 1 (0.305)
10 (3.048) 2 (0.610)
15 (4.572) 3 (0.914)
20 (6.096) 4 (1.219)

V + H + H1 = 40 feet (12.2 m) Max.

H + H

= 20 ft. (6.096 m) Max.

1

Example: If 20 feet of (H + H1) horizontal vent run is needed,
then 4 feet minimum of (V) vertical vent will be required.

This table shows a 1(V) to 5(H) ratio. For every 1 foot of (V)
vertical, you are allowed 5 feet of (H+ H1) horizontal run, up
to a maximum horizontal run of 20 feet.

An elbow is acceptable as 1 foot of vertical rise except where
an elbow is the only vertical component in the system. See
Figure 35.

22

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

V

H

2

H

1

H



Wall Firestop/Spacer

(SV4.5HF)



Ceiling

Firestop/Spacer

(SV4.5VF)



When using Secure Flex,

use Firestop/S

pacer

SF4.5VF.



When using Secure

Flex, use Firestop/Spacer

SF4.5HF.

V

H

H

1

V

1



Wall Firestop/Spacer

(SV4.5HF)



Ceiling

Firestop/Spacer

(SV4.5VF)



When using Secure Flex

,

use Firestop/Spacer

SF4.5VF

.



When using Secure

Flex, use Firestop/Spacer

SF4.5HF.



Wall Firestop/Spacer

(SV4.5HF)

HORIZONTAL VENT FIGURES / TABLES (CONTINUED)

Square termination
(SV4.5HT-2) shown.

Table K

H + H

+ H

Maximum H Maximum

1

2

V Minimum

feet (meter) feet (meter) feet (meter)

5 (1.524) 2 (0.610) 1 (0.305)
10 (3.048) 4 (1.219) 2 (0.610)
15 (4.572) 6 (1.829) 3 (0.914)
20 (6.096) 8 (2.438) 4 (1.219)

V + H + H1 + H2 = 40 feet (12.2 m) Max

H = 8 feet (2.438 meters) Max.

H + H1+ H

= 20 feet (6.096 meters) Max.

2

Example: If 20 feet total (H+H1+H2) horizontal vent
run is needed, then 4 feet minimum of (V) vertical
vent will be required.

This table shows a 1(V) to 5(H) ratio. For every
1 foot of (V) vertical, you are allowed 5 feet of
horizontal run up to a maximum total (H+H1+H2)
horizontal run of 20 feet.

See Table 12 on Page 21 as an aid in venting
component selection for a particular range of
exterior wall thicknesses.

Figure 39 - Rear Vent - THREE 90 DEGREE ELBOWS

See Table 12 on Page
21 as an aid in venting
component selection for
a particular range of exte­rior wall thicknesses.

Figure 40 - Top Vent - THREE 90 DEGREE ELBOWS

Table L

H + H1 Maximum

V Minimum

feet (meter) feet (meter)

5 (1.524)

Elbow Only

5 (1.524) 1 (0.305)
10 (3.048) 2 (0.610)
15 (4.572) 3 (0.914)
20 (6.096) 4 (1.219)

H + H

= 20 feet (6.096 m) Max.

1

V + V

+ H + H1 = 40 ft. (12.192 m) Max.

1

Example: If 20 feet total (H+H1) horizontal vent
run is needed, then 4 feet minimum of (V) vertical
vent will be required.

This table shows a 1(V) to 5(H) ratio. For every 1
foot of (V) vertical, you are allowed 5 feet of (H+
H1) horizontal run, up to a maximum horizontal
run of 20 feet.

An elbow is acceptable as 1 foot of vertical rise
except where an elbow is the only vertical com­ponent in the system. See Figure 35.

Square termination (SV4.5HT-2) shown.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

23

VERTICAL OR HORIZONTAL VENTING USING

SECURE FLEX KITS AND COMPONENTS

Secure Flex venting kits and components
may be used in any venting application in
place of rigid Secure Vent (SV4.5) direct vent
components. All restrictions, clearances and
allowances that pertain to the rigid piping apply
to the flexible venting. Secure Flex kits may

not be modified; also, under no circumstances
may separate sections of flex pipe be joined
together.

Using adapter (SV4.5RF), Secure Flex kits
may be added to the end of a vent run made
up of rigid Secure Vent (SV4.5) vent sections
provided that doing so does not violate any of
the venting length, height, routing, horizontal
to vertical ratio requirements or clearance
considerations detailed in this manual.

Secure Flex kits come with an adapter that
can be fitted to the inclined channel end of the
last Secure Vent (SV4.5) vent section in a rigid
system in the exact same fashion as any other
Secure Vent section.

Align the dimpled end of the adapter over
the previously installed section or appliance
collar, adjusting the radial alignment until the
four locking dimples of the adapter are aligned
with the inlets of the four incline channels of
the last vent section or collar. Push on the
adapter until it fully engages, then twist the
adapter clockwise running the dimples down
and along the incline channels until they seat
at the end of the channels.

Attach the flexible vent to the adapter as fol­lows (see also Figure 41):
A. Install the Inner Flex Pipe -

1. Install the small gear clamp loosely around

the inner flexible vent pipe, push it back out
of the way.

2. Apply a bead of Mill-Pac Black (700° F) high
temperature sealant - Catalog No. 10K81

to the inner adapter collar, approximately
1/2 inch from the end.

3. Pull and extend the inner flexible vent pipe.

4. Slide the inner flex pipe over the adapter col-

lar. Ensure the flexible vent pipe completely
engages the adapter collar to a distance of 1
3/4 inches from the end, and that it is free
from damage or tears.

5. Slide the gear clamp down and tighten it
fully to secure the flexible vent to the adapter
inner collar approximately 3/4 inch from the
end of the flex.

6. Install three screws 120 degrees apart through
the flexible vent pipe and into the adapter collar
just below the gear clamp to provide additional
security to the connection.

24

Note: Outer Pipe Is Pulled Away To
Show The Detail of The Inner Pipe

APPLY ONLY MIL-PAC BLACK
HIGH TEMPERATURE SEALANT
(Cat. No. 10K81) to the outside
surface of both collars of the
adapter (be especially careful to
fill the grooves of the outer collar
to be covered by the flexible pipe)
and slide flexible pipe over inner
and outer adapter collars.

1-3/4 inch (44 mm) Flexible
Pipe and Adapter Outer Collar
Overlap

Adapter (SV4.5RF)

Figure 41

Attach Adapter to Appliance

Collar, or Secure Vent Sections

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.

2. Apply a bead of Mill-Pac Black (700° F) high
temperature sealant - Catalog No. 10K81)

to the outer adapter collar; to the grooves
of the collar which extend approximately 1
inch from the end and to the flat surface,
approximately 1 3/4 inches from the end.

3. Pull and extend outer flexible vent pipe.

4. Slide the outer flex pipe over the adapter col-

lar. Ensure the flexible vent pipe completely
engages the adapter collar to a distance of
1-3/4 inches from the end, and that it is free
from damage or tears.

5. Slide the gear clamp down and tighten it
fully to secure the flexible vent to the adapter
outer collar approximately 3/4 inch from the
end of the flex.

6. Install three screws 120 degrees apart
through the flexible vent pipe and into the
adapter collar just below the gear clamp to
provide additional security to the connec­tion.

C. Route Flex Vent -

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 42. Space out the
internal flex vent spacers evenly - approximately
every 6 inches - and avoid kinking of inner pipe.
Support horizontal sections of flex with metal
straps at 2 foot (0.61 m) intervals.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

Flex Vent

Securing Screw - 3 Places
Equidistant (equally spaced)
Just Below Gear Clamp)

Gear Clamps

1 3/4 in. (44 mm) Flexible
Pipe and Adapter Inner Collar
Overlap

Securing Screw

- 3 Places, 120° apart
(equally spaced) Just
Below Gear Clamp

D. Install Firestop / Spacers at ceilings and walls

- When Secure Flex penetrates a wall or ceiling,

a firestop / spacer is required: use the SF4.5 VF
firestop / spacer for ceilings and the SF4.5 HF
firestop / spacer for walls. See the appropriate
sections and Figures shown throughout the vent­ing section for their installation requirements.

Flexible Vent
Section

5” (127 mm)

Radius

Figure 42

Minimum

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

41) as it was attached to the adapter.

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 components. The collars
of Secure Flex terminations and adapters have a
different diameter 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.

Step 4. FIELD WIRING

TH

TP

TH

TP

HT

P

T

HT

P

T

*

Refer to Section A for millivolt appliances and
Section B for electronic appliances. The gas
valve is set in place and pre-wired at the factory
on both models.

CAUTION

Ensure that wires are positioned
away from hot surfaces and sharp
edges.

CAUTION

Label all wires prior to disconnection
when servicing controls. Wiring
errors can cause improper and dan­gerous appliance operation.

CAUTION

Do not connect the optional wall
switch for burner operation to a
120 Volt AC power supply.

A. SIT and Honeywell Millivolt Wiring
(See Figure 43) –

1. Select any of the following optional controls:

appliance-mounted (rocker switch) or wall­mounted switch, wall thermostat, or the
standard or deluxe remote control kits. If ap­pliance-mounted ON/OFF control is selected
mount it in the gas valve mounting bracket.

2. If wall-mounted ON/OFF control or ther-

mostat is selected mount it in a convenient
location on a wall near the fireplace.

3. Wire the control within the millivolt control
circuit using the 15 feet of 2 conductor wire
supplied with the unit . Caution: do not

connect the optional wall switch to a 120V
power supply.

4. Alternatively, 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
(which would otherwise go to the standard
ON/OFF switch or Optional Switch) together
as shown in Figure 43.

Note: Wire is located inside the control

compartment

Note: The supplied 15 feet of 2 conductor wire
has one end of each conductor connected to
the gas valve circuit and the other end of each
conductor placed loose inside the control
compartment.

B. Electronic Wiring (See Figure 45) –
Note: The electronic appliance must be con-

nected to the main power supply.

The junction box is located on the right side of
the appliance. It contains a factory installed and
wired outlet box (duplex receptacle). Also, an
optional field-provided junction box with recep­tacle may be installed at the front of the control
compartment on either side of the cabinet. See
Figure 44. It will be held in place by a conduit
fitting and locknut (field-provided).

1. Route a 3-wire 120Vac 60Hz 1ph power supply
to the appliance junction box.
If the factory-provided outlet/junction box at

2.

the right rear of the fireplace is being used,
remove the outlet box from the junction box
by removing two screws.

3. Connect the power supply wires (including the

ground supply wire) as shown in Figures 44
& 45. (If the field-provided J-box/outlet box
is being used, all of the outlet box wiring must
be field-provided).

4. Locate and install a low voltage (24V) wall-

mounted switch or thermostat (both field­provided)in the desired location.

5. Connect the low voltage wire, located inside

the control compartment, to the wall-mounted
switch or thermostat.

Note: The supplied 15 feet of 2 conductor wire

has one end of each conductor connected to
the gas valve circuit and the other end of each
conductor placed loose inside the control
compartment.

6. Insert the control circuit plug into the un-

switched receptacle of the outlet box.

7. After wiring is complete, mount the outlet box

to the J-Box.

Note: The gas valve-mounted ON/OFF switch is
shown in Figure 45. It is integral with the gas
valve and should be set to the ON position.

Step 5. WIRING - OPTIONAL FORCED AIR
BLOWER KIT

FBK-100, FBK-200 and FBK250 Kits

(See Figure 45) -

An electrical outlet box (receptacle) is factory

-provided for the installation of the FBK-100,
FBK-200 and FBK-250 forced air blower kits.
(An optional field-provided outletbox/J-Box
may also be used. Electrical power must be
connected to either of these receptacles in order
to operate these blowers. Install the blower
kits according to the installation instructions
provided with the kits.

See Figure 14 on Page 11
for Optional Electrical
Inlet Knockout Location

*Field-Provided

Thermopile

*Narrow (2 1/8" Wide)
J-Box Required

* Twist wires together to operate unit
solely by manipulating the gas valve
control knob; or connect wires to
optional control switch (wall switch,
remote control or wall thermostat to
operate unit.

• If any of the original wire as supplied must
be replaced, it must be replaced with Type AWM
105 C - 18 gage wire.
* Optional Kits Installed - ON/OFF wall switch, unit mounted burner ON/OFF switch, wall thermostat or
remote control.receiver.

Figure 43 -

SIT & HONEYWELL Millivolt Wiring Diagram

* Optional
Control Switch

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

Schematic
Representation
Only

Field Wired

Factory
Wired

Figure 44

Junction Box and

Duplex Receptacle

Optional J-Box/Outlet
Box (Left Side Shown)

25

Relay Module C/W FBK-250 only. Plug blower
into J-Box receptacle for FBK-100 or FBK-200
application. See View A for J-Box wiring.

Optional Blower

*OFF/ON Switch
(Integral with
Gas Valve)

Honeywell
Electronic
Gas
Valve

120 VAC
Primary

Secondary

Optional Control Switch

Junction Box

Pilot Burner
Assembly

BL

BL

Field Wired
Factory

Wired

BK = BLACK BL = BLUE
R = RED W = WHITE
G = GREEN

BK

W

BK

BK

BL

R

GROUND

24 V

Transformer

View A
J-Box Wiring when
using unit mounted
relay module.

BK
W

G

C
AV

02
1

Igniter
Connector

* Leave the OFF/ON switch, which is
integral with the gas valve, in the ON
position.
**Optional Control Switches: Wall
Switch, Wall Thermostat or Remote
Control Receiver.

Notes:

1. If any of the original wire as supplied
must be replaced, use Type AWM 105°C

- 18 gage wire ONLY.

2. 120 VAC, 60 Hz - Less than 3 Amps.
Caution: label all wires prior to
disconnection when servicing controls.
Wiring errors can cause improper and
dangerous operation.

Junction Box

Tab Intact

Tab
Broken

Plug blower
into this
receptacle

neerG - dnuo

r

G

* Wall-mounted
ON/ OFF Blower
Switch or Variable
Speed Control Switch.

Blower

Ground

e

tihW

-

lartueN

120 VAC - Black

Green
Ground
Screw

White

Green

Neutral
Side of
Receptacle

Hot
Side of
Receptacle

Red

Black

J-BOX WIRING FOR
WALL SWITCH
BLOWER CONTROL

Gas
Valve

3/8" NPT x

Flare Fitting

3/8" Flex Tubing

3/8" Nipple

3/8" Union

3/8" Close Nipple

3/8" Shut-off Valve

1/2" x 3/8"

Reducer

Gas

Stub

1/2" x 3/8" Flare

Shut-off Valve

Gas Flex Line Connector

*Sediment
Trap

3"

Min

26

Schematic Representation Only

Electronic Wiring Diagram (Honeywell) Showing Blower Wiring for Optional FBK-100, FBK-200 & FBK-250 Kits

Figure 45

Ground supply lead must be connected to the wire attached to the green
ground 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).

CAUTION

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

*A Sediment Trap is recommended to prevent moisture
and debris in gas line from damaging the valve.

Note:The gas supply line must be installed in accor­dance with building codes by a qualified installer
approved and/or licensed as requed by the locality.
In the Commonwealth of Massachusetts, installa­tion must be performed by a licensed plumber or
gas fitter.

Figure 46 - GAS CONNECTION

Step 6. CONNECTING GAS LINE

Make gas line connections. All codes require a
shut-off valve mounted in the supply line. Figure
46 illustrates two methods for connecting the
gas supply. The flex-line method is acceptable
in the U.S., however, Canadian requirements
vary depending on locality. Installation must
be in compliance with local codes.

These appliances are equipped with a gas flex
line for use (where permitted) in connecting
the appliance to the gas line. A gas flex line
is provided to aid in attaching the direct vent
appliance to the gas supply. The gas flex line
can only be used where local codes permit.
See Figure 46 for flex line description. The flex
line is rated for both natural gas and propane
gas. A manual shut off valve is also provided
with the flex line.

The incoming gas line should be piped into the
valve compartment and connected (see Figures
46 & 47). The millivolt control valve has a 3/8"
(10 mm) NPT thread inlet port. The electronic
control valve has a 1/2" (13 mm) NPT thread
inlet port and is fitted with a 1/2" x 3/8" (13 mm x
10 mm) NPT fitting.

Secure all joints tightly using appropriate
tools and sealing compounds (ensure propane
resistant compounds are used in propane
applications).

Optional: Seal around the gas line to pre­vent cold air leakage.

TEST ALL CONNECTIONS FOR GAS LEAKS

Piezo

Igniter

SIT Gas Valve

Honeywell
Gas Valve

(FACTORY AND FIELD):

WARNING

Never use an open flame to
check for leaks.

Turn on gas supply and test for gas leaks using a
gas leak test solution (also referred to as bubble
leak solution). Note: Using a soapy water solution
(50% dish soap, 50% water) is an effective leak
test solution but it is not recommended, because
the soap residue that is left on the pipes/fittings
can result in corrosion over time.

A. Light the appliance (refer to the lighting

instructions label in control compartment or
homeowner's manual).

B. Brush all joints and connections with the gas

leak test solution to check for leaks. If bubbles
are formed, or gas odor is detected, turn the
gas control knob (off/pilot/on) to the “OFF”
position. Either tighten or refasten the leaking
connection, then retest as described above.

C. When the gas lines are tested and leak free be

sure to rinse off the leak testing solution,

D. Turn on burner then observe the individual

tongues of flame on the burner. Make sure
all ports are open and producing flame evenly
across the burner. If any ports are blocked, or
partially blocked, clean out the ports.

CONTROL COMPARTMENT ACCESS/
LOUVER PANEL INSTRUCTIONS
(Ref. Figure 47)

NOTE: The top louvered panel and the bottom
louvered control panel door remove and install
the same way as follows:

The gas controls can be found behind the control
compartment access door.

Removing Control Compartment Door:

Open the door by gently lifting it upward until the
hook catches on boths sides clear the locating
slots. Then pull door out to remove.

On millivolt systems, the piezo igniter, HI/LO
flame adjustment knob, and pilot and main
gas OFF/ON control knob are located below
the glass panel enclosure. The gas valve for
electronic systems is also located below the
glass enclosure panel. See Figure 47.

Reinstalling Control Compartment Door:

To reinstall, insert the hook catches on each
side of the door into the corresponding slots
in the control compartment opening, then
gently push forward and slide down until it
locks in place.

Lift the Lower Control
Compartment Door

OPENING CONTROL
COMPARTMENT DOOR

Control Valve

up and pull out to
remove.

Hook Catch

Out

Up

Lower Control
Compartment Door

Figure 47

Step 7. CHECKING APPLIANCE OPERA­TION

With the gas line installed, run initial system
checkout before closing up the front of the
appliance. Follow the pilot lighting instructions
provided in the Homeowner's Care and Opera­tion Instructions. For piezo igniter location see

Figure 48 (millivolt appliances only).

Note: The (pull-out) Lighting instructions label
can be found in the control compartment
(see Figure 47).

When first lighting the appliance, it will take
a few minutes for the line to purge itself of
air. Once purging is complete, the pilot and
burner will light and operate as indicated in
the instruction manual. Subsequent lightings
of the appliance will not require such purging.
Inspect the pilot flame.

SIT and Honeywell Millivolt Appliance
Checkout

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

49 - SIT, Figure 50 - Honeywell).

To light the burner; rotate the gas valve control
knob counterclockwise to the “ON” position
then turn “ON” the OFF/ON switch (installed
at Step 4).

Observe the individual tongues of flame on
the burner. Make sure all ports are open and
producing flame evenly across the burner. If
any ports are blocked, or partially blocked,
clean out the ports.

Sit and Honeywell Millivolt Gas Valve
Showing Piezo Igniter Location (Each Unit is
Equipped with Only One of these Gas Valves)

Figure 48

SIT MILLIVOLT PILOT ASSEMBLY

Proper Pilot Flame Appearance

Hood

Thermocouple

Pilot
Nozzels

Thermopile

Igniter Rod

3/8" Min.

(9 mm)

Figure 49

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

27

Replace logs if removed for pilot inspection.
To light the burner; turn “ON” the remote wall

switch and rotate the gas valve control knob
counterclockwise to the “ON” position.

HONEYWELL MILLIVOLT PILOT ASSEMBLY

Proper Pilot Flame Appearance

Thermocouple

1/8" Min.

(3 mm)

Igniter Rod

Hood

3/8" Min.

(9 mm)

Pilot
Nozzels

Thermopile

Figure 50

Electronic Appliance Checkout

To light the burner, turn ‘ON’ the optional remote
wall switch and turn the gas control switch to
the “ON” position. Ensure the Igniter lights the
pilot. The pilot flame should engulf the flame
rod as shown in Figure 51.

INSTALL LOGS, VOLCANIC STONE AND
GLOWING EMBERS

Carefully position the ceramic fiber logs and
twigs over the burner according to the following
steps, while referring to Figure 52.

1. Set the rear log on the raised log support

brackets at the rear of the firebox, fitting
the slots in the log over the brackets.

2. Position the front log with the pins for the

two side twigs in the up position, and the
two vertical burner tabs recessed into the
two notches at the rear of the log. Check
for recessing of brackets into log notches
(by touch) to verify correct log placement.

3. Insert the alignment hole of the left twig over

the front log's left pin. Rotate the left twig
until it just touches the edge of the ember
bracket.

4. Insert the alignment hole of the right twig

over the front log's right pin. Rotate the
right twig until it almost touches the front
panel glass.

Note: Proper twig placement is critical in the

gaps between the flame peaks and should be
positioned so that at no time they impinge
the flames.

Glowing Ember/Volcanic Stone Placement

Remove the replacement rockwool (Glowing
Embers) from the packaging and tear into
quarter size pieces (see Figure 53 ).

Spread rockwool (quarter-sized pieces) on and
along the length of the burner screen. Do not
use more than is necessary. To many quarter­sized pieces on the front burner section will
cause poor combustion.

When properly positioned, the rockwool will
unevenly cover approximately 85% of the
burner screen, with no appreciable gaps or
openings.

To install Decorative Volcanic Stone, mound up
a portion of the volcanic stone in front of the
burner in a pattern to suite individual taste.

ELECTRONIC PILOT ASSEMBLY

Proper Pilot Flame Appearance

Proper Flame

Adjustment

Pilot
Nozzels

Figure 51

3/8" to 1/2"
(9 -13 mm)

Hot Surface

Igniter

Figure 52 - Log Set (Shown With Optional Log Rack)

28

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

WARNING

Logs get very hot and will remain
hot up to one hour after gas
supply is turned off. Handle
only when logs are cool. Turn
off all electricity to the appli­ance before you install grate
and logs.

WARNING

WARNING

The size and position of the log set
was engineered to give the appli­ance a safe, reliable and attrac­tive flame pattern. Any attempt
to use a different log set in the
fireplace will void the warranty
and will result in incomplete
combustion, sooting, and poor
flame quality.

Separate into Quarter

Size (separate) Pieces

Bag of Glowing

Embers (rockwool)

Figure 53 - Glowing Embers

DO NOT attempt to install the logs
until the appliance installation
has been completed, the gas line
connected and tested for leaks
and the initial burner operation
has been checked out.

WARNING

This appliance is not designed
to burn wood. Any attempt to
do so could cause irreparable
damage to appliance and prove
hazardous to your safety.

REFERENCE

Firebox Accessories / Parts

Cat. No. Model No. Description

88L53 FGE Bag of Glowing Embers

80L42 FDVS

Table 13

(1 oz. rockwool)

Bag of Decorative
Volcanic Stone

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

29

Step 9. INSTALLING THE GLASS DOOR

WARNING

Do not operate appliance with the
glass front removed, cracked or
broken. Replacement of the glass
should be done by a licensed or
qualified service technician.

WARNING

Do not attempt to substitute the
materials used on this door, or
replace cracked or broken glass
with any materials other than
those provided by the appliance
manufacturer.

WARNING

Handle this glass with extreme
care! Tempered glass is suscep­tible to damage – do not scratch
or handle roughly while rein­stalling the glass door frame.

WARNING

The glass door of this appli­ance must only be replaced as
a complete unit as provided by
the manufacturer. Do not attempt
to replace broken, cracked or
chipped glass separately.

WARNING

Do not attempt to touch the front
enclosure glass with your hands
while the fireplace is in use.

Removing Glass Enclosure Panels
(see Figure 54)

1. Remove the top louver assembly by lifting it

up and pulling it out.

2. Remove the control compartment access

door (see removal instructions on Page 27

- Removing Control Compartment Door).

3. Locate the two (2) latches at the top of the

control compartment. To disengage the two
latches from the bottom vee-flange of the
glass enclosure panel, reach for the handles
located towards the back of the latches and
pull the handles down toward the front of
the appliance.
Swing the bottom of the door out and raise

4.

it slightly to lift the top flange of the door
frame away from the appliance.

Installing Glass Enclosure Panels
(see Figure 54)

1. Visually inspect the gasket on the backside of the

glass panel. The gasket surface must be clean,
free of irregularities and seated firmly.

2. Position the glass enclosure panel in front of

the firebox opening at a 45 degree angle and
engage the top flange over the lip at the top
of the firebox opening. See Figure 54.

3. Swing the glass enclosure panel down and

back. Ensure the gasket seats evenly as the
panel draws shut. Engage the Vee-flange at
the bottom of the panel with the latches and
close the latches to secure the panel.

4. Reinstall top louver assembly and control

compartment door see installation instruc­tions on Page 27 , Reinstalling Control

Compartment Door).

Top Flange on

Glass Door

Glass Door

Bottom Vee-flange

Glass Door

Glass Door Latch

Firebox Floor

Figure 54 - INSTALLING GLASS DOOR

Step 10. BURNER ADJUSTMENTS
Flame Appearance and sooting

Proper flame appearance is a flame which is
blue at the base and becomes yellowish-orange
in the body of the flame. When the appliance
is first lit, the entire flame may be blue and will
gradually turn yellowish-orange during the first
15 minutes of operation. If after a short period
the flame stays lowered blue, or if the flame is
orange with evidence of sooting (black tip), the
air shutter opening may need to be adjusted.

If the air shutter openings closed too far, sooting
may develop. 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
surfaces 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 yellow­ish-orange flame with an orange body that does
not soot, the shutter opening must be adjusted
between these two extremes.

Air Shutter Adjustment Guidelines

• If there is smoke or soot present, first check
the log set positioning to ensure that the
flames are not impinging on any of the logs.
If the log set is properly positioned and a
sooting condition still exists, then the air
shutter opening should be increased.

• The more offsets in the vent system, the larger
the air shutter opening will need to be.

• An appliance operated with the air shutter
opened too far, may have flames that appear
blue and transparent. These weak, blue and
transparent flames are termed anemic.

• Propane models may exhibit flames which
candle or appear stringy. If this is present
and persists, adjust the air shutter to a more
closed position, then operate the appliance
for a few more minutes to ensure that the
flame normalizes and the flames do not
appear sooty.

The following chart is provided to aid you in
achieving the correct air shutter adjustment for
your installation.

Air Shutter Adjustment Guidelines:

Amount of

Primary Air

If air shutter is
closed too far

If air shutter is
open too far

Flame

Color

Flame will
be orange

Flame will
be blue

Air shutter
gap should be
increased

Air shutter
gap should be
decreased

WARNING

Air Shutter

Adjustment

Air shutter adjustment should only
be performed by a qualified profes­sional service technician.

WARNING

Ensure front glass panels are in
place and sealed during adjust­ment.

CAUTION

Carbon will be produced if the air
shutter is closed too much. Any
damage due to carboning result­ing from improperly setting the
air shutter is not covered under
the warranty.

30

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

Burner Air Shutter Adjustment Procedure

CAUTION

The air shutter door and nearby appliance surfaces are
hot. Exercise caution to avoid injury while adjusting
flame appearance.

Burner Air Shutter Adjustment Procedure

1. Locate adjustment rod and adjust air shutter to the standard setting

as shown in Figure 56 (adjustment rod is located in the lower control
compartment).

Note: Move the adjustment rod down to decreases air and up to

increases.

2. Light appliance (follow lighting procedure on lighting label in control

compartment or see Care and Operations manual).

3.

Allow the burner to operate for at least 15 minutes while observing
the flame continuously to ensure that the proper flame appearance
has been achieved (see Figure 55). If the following conditions are
present, adjust accordingly.

• If flame appears weak or sooty, adjust air shutter, incrementally, to a
more open position until the proper flame appearance is achieved.

• If flame stays lowered blue, adjust air shutter, incrementally, to a more
closed position until the proper flame appearance is achieved.

4. Leave the control knob (off/pilot/on) in the ON position and the burner

OFF/ON switch OFF (& remote switches, if applicable).

5.

When satisfied that the burner flame appearance is normal, re-install the
lower control compartment door then proceed to finish the installation.

Burner Air Shutter Adjustment

Adjustment Setscrew

Adjustment Rod Up
(Fully Open Position)

Burner Tube

Air Shutter

Adjustment Rod Down
(minimum air opening
position)

Figure 56

Ref. Air shutter Patent:
U.S. Pat. 5,553,603

Main Burner Factory Air Shutter

Opening Setting - Inches (millimeter)

Model Natural

Gas

SSDVT-3328
SSDVR-3328

1/32

(0.826 mm)

Propane

Gas

5/16

(7.94 mm)

Step 11. HOOD INSTALLATION

(Refer to Figure 57)
All of these appliances must have hoods installed prior to operat­ing.

Slide the hood into the slots on the lower edge of the cabinet top.

Figure 55

Burner Flame Appearance Models -

SSDV-3328 Series

FINISHING REQUIREMENTS - Wall Details

Complete finished interior wall. To install the appliance facing flush
with the finished wall, position framework to accommodate the thick­ness of the finished wall (Figure 57 ).

See Page 6 for Cold Climate Insulation

and Page 9 for Clearances

Combustible Finished

Wall Materials

Drywall Bracket / Spacer

Combustible material may
touch the appliance top

Hood must be installed as shown.

This Area Must
Remain Clear of
Combustible
Materials

Top Spacers

Top of Appliance

Louvers

Top of Door Frame

1 in. Min.

(25 mm)

3"

(76 mm)

Figure 57 - Combustible Wall Framing

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

31

INSTALLATION ACCESSORIES

Item Cat. No. Model Description

1 H1968 SV4.5HT-2 Horizontal Square Termination With Firestop/spacer

(H2246) & Adapter (74L61)
2a H2152 SV4.5CGV-1 Vertical Termination Cap
2b H4687 SV4.5CTS Chase Top Termination Square
2b H4716 SV4.5CTS-B Chase Top Termination Square, Black
2b H4717 SV4.5CTS-TC Chase Top Termination Square, Terra Cotta
3 77L70 SV4.5L6 6 Inch (152 mm) Vent Section
3 77L71 SV4.5L12 12 Inch (305 mm) Vent Section
3 77L72 SV4.5L24 24 Inch (610 mm) Vent Section
3 77L73 SV4.5L36 36 Inch (914 mm) Vent Section
3 77L74 SV4.5L48 48 Inch (1219 mm) Vent Section
3 77L75 SV4.5LA Telescopic Section (1-1/2" to 7-1/2" effective length)
4 77L76 SV4.5E45 45 Degree Elbow
5 77L77 SV4.5E90 90 Degree Elbow
The following flashings come packaged with a storm collar:
6 77L78 SV4.5F Flat Roof Flashing
6 77L79 SV4.5FA 1/2 to 7/12 Adjustable Flashing
6 77L80 SV4.5FB 7/2 to 12/12 Adjustable Flashing
7 77L81 SV4.5SC6 Storm Collar (6 per box)
8 H2246 SV4.5HF Firestop / Spacer-Horizontal (3-1-1 spacing), 10 Pack

1

3

4

6

5

8 H2247 SV4.5VF Firestop / Spacer-Vertical (1-1-1 spacing), 10 Pack
9 96K93 SV4.5SU Support Strap
10 96K94 SV4.5RSA Attic Insulation Shield
11 96K92 SV4.5SP Support Plate
12 17M52 SV4.5HGS-1 Termination Guard, Square (1 pack)

(for square termination)
12 17M53 SV4.5HGS-12 Termination Guard, Square (12 pack)

(for square termination)
13 H5820 4.5HTSK Termination Shroud (Guard) for Horizontal Square

Termination (1 pack)

9

2a

10

8

2b

11

7

12

13

32

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

INSTALLATION ACCESSORIES

S

e

a

l

a

n

t

12typ.

typ.

1 typ.

2a

2a

2a

2a

2b

2b

2b

Item Cat. No. Model Description

18 H1969 SF4.5HT-2 Horizontal Square Termination (without flex)
18 77L87 SFKIT12S Flex Square Term. (with 12 inch [305 mm] * compressed flex)
18 77L88 SFKIT18S Flex Square Term. (with 18 inch [457 mm] * compressed flex)
18 77L89 SFKIT24S Flex Square Term. (with 24 inch [610 mm] * compressed flex)
18 77L90 SFKIT36S Flex Square Term. (with 36 inch [914 mm] * compressed flex)
18 77L91 SFKIT48S Flex Square Term. (with 48 inch [1219 mm] * compressed flex)
19 56L74 SFVT30 Vertical Termination for flex (flat to 6/12) with flex adapter, section of rigid vent,

19

56L75 SFVT45 Vertical Termination for flex (6/12 to 12/12) with flex adapter, section of rigid

*20 60L10 SF-18 18 ft. (5.49 m) * compressed flex
*20 98K03 SF-12 12 ft. (3.66 m) * compressed flex
22 10K81 SFMP Mill-Pac, Black, High Temperature Sealant
22 89L40 SFMP-12 Mill-Pac, Black, High Temperature Sealant - Bulk 12 pack
23 91L66 SF-GC4-6 Gear Clamp 4.5 in. (114 mm) for flex (6 pieces)
23 91L67 SF-GC7-6 Gear Clamp 7.5 in. (190.5 mm) for flex (6 pieces)
24 99L02 SV4.5HRK14 Horizontal Riser Kit, 14"
24 99L03 SV4.5HRK36 Horizontal Riser Kit, 36"
25
26
26
26

H1988 CTSA-33
H1985 CTSO-33
H1987 CTSO-44
H1986 CTSO-46

8 H2248 SF4.5HF
8 H2249 SF4.5VF

All compressed flex vents can be

*

expanded up to two times.

roof support collar assembly, roof flashing and storm collar.

vent, roof support collar assembly, roof flashing and storm collar.

Chase Top Shroud Kit, Arch Top 3 X 3
Chase Top Shroud Kit, Open Top 3 X 3
Chase Top Shroud Kit, Open Top 4 X 4
Chase Top Shroud Kit, Open Top 4 X 6
Firestop / Spacer - Horizontal (flex) (3-1-1 spacing)
Firestop / Spacer - Vertical (1-1-1 spacing)

18

A

B

, 10 Pack

, 10 Pack

25

D

19

CTSO-46 Shroud
for double
terminations

C

A

26

E

B

C

Closed Top Shroud Termination Kits

Inches (millimeters)

D

C

D

E

Model A B C D

CTSA-33

23

20

34"

(864)5"(127)

24

22

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

34"

(864)

34"

(864)

CTSO-33/44 Shrouds
for Single terminations

Open Top Shroud Kits

Inches (millimeters)

Model A B C D *E

37-5/8

37-5/8

7-1/2

A

CTSO-33

CTSO-44

CTSO-46

(955)

48-5/8
(1235)

48-5/8
(1235)

(955)

48-5/8
(1235)

73 1/4

(1860)

(191)
7-1/2

(191)
7-1/2

(191)

24-1/2

(622)3 (76)

24-1/2

(622)3(76)

24-1/2

(622)3(76)

B

33

INSTALLATION ACCESSORIES

Listed Secure Flex™ Components

Cat. No. Model Description

94L04 SFKIT12SS Flex - Small Square Termination with 12 in.

94L05 SFKIT18SS Flex - Small Square Termination with 18 in.

94L06 SFKIT24SS Flex - Small Square Termination with 24 in.

94L07 SFKIT36SS Flex - Small Square Termination with 36 in.

94L08 SFKIT48SS Flex - Small Square Termination with 48 in.

94L09 SF-HTSS Horizontal Small Square Termination

Listed Secure Vent™ Components

94L10 SV4.5HTSS Horizontal - Small Square Termination with

H5817 SV4.520SSWSK Small Square 20" Termination

* All compressed flex vents can be expanded up to two times.

(305 mm) of *compressed flex vent

(457 mm) of *compressed flex vent

(610 mm) of *compressed flex vent

(914 mm) of *compressed flex vent

(1219 mm) of *compressed flex vent

without flex vent

Firestop/Spacer (H2246) & Adapter (74L61).

WARNING

This conversion kit shall be installed
by a qualified service agency in
accordance with the manufacturer's
instructions and all applicable codes
and requirements of the authorized
having jurisdiction. If the information
in these instructions is not followed
exactly, a fire, explosion or produc­tion of carbon monoxide may result
causing property damage, personal
injury or loss of life. The installation
is not proper and complete until the
operation of the converted appliance
is checked as specified in the owner
instructions supplied with the kit. The
qualified service agency performing
this installation assumes responsibil­ity for this conversion.

AVERTISSEMENT

GAS CONVERSION KITS

Millivolt SIT Systems

Natural Gas To Propane Gas

Conversion Kits

Models Cat. No.

SSDVT/R-3328 H1594

Millivolt SIT Systems

Propane to Natural Gas

Conversion Kits

Models Cat. No.

SSDVT/R-3328 H1595

Millivolt HONEYWELL Systems

Natural Gas To Propane Gas

Conversion Kits

Models Cat. No.

SSDVT/R-3328 26M51

Millivolt HONEYWELL Systems

Propane Gas To Natural Gas

Conversion Kits

Models Cat. No.

SSDVT/R-3328 26M55

Electronic HONEYWELL Systems

Natural Gas To Propane Gas

Conversion Kits

Models Cat. No.

SSDVT/R-3328 99L90

Electronic HONEYWELL Systems

Propane Gas To Natural Gas

Conversion Kits

Models Cat. No.

SSDVT/R-3328 99L91

Cet équipement de conversion sera
installé par une agence qualifiée de
service conformément aux instruc­tions du fabricant et toutes exigences
et codes applicables de l'autorisés
avoir la juridiction. Si l'information
dans cette instruction n'est pas suivie
exactement, un feu, explosion ou pro­duction de protoxyde de carbone peut
résulter le dommages causer de pro­priété, perte ou blessure personnelle
de vie. L'agence qualifiée de service
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.

IMPORTANT/CANADA

The conversion shall be carried out
in accordance with the requirements
of the provincial authorities having
jurisdiction and in accordance with
the requirements of the CAN1-B149.1
And B149.2 Installation code.

34

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

Adjusting Knob

Conversion screw
(blue natural gas;
red LP/propane gas)

Regulator Cap

Honeywell Millivolt Gas Valve

P

L

NA

T

IMPORTANT

LE CANADA SEULEMENT

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.

Gas conversion kits are available to adapt the
appliance from the use of one type of gas to
the use of another. These kits contain all the
necessary components needed to complete the
task including labeling that must be affixed to
ensure safe operation.

Kit part numbers are listed here and the following
steps detail the conversion procedure.

Step 1. Turn off the gas supply to the appliance.
Remove the front glass door/frame from the
appliance. Access the control compartment.

Step 2. Carefully remove the logs. Exercise care
so as not to break the logs.

Step 3. Locate the screws securing the burner

assembly to the appliance. Remove the burner
assembly and retain the securing screws.

Step 4. Millivolt Appliances - SIT Systems

a. See Figure 58 and the instructions
provided with the kit. Using a Torx T20,
tool or or standard flat screwdriver remove
and discard the three pressure regulator
mounting screws. Remove the pressure
regulator, spring, poppet, diaphragm and
bushing. Discard all removed components.
Ensure the rubber gasket installed on the
back of the replacement pressure regulator
is properly positioned and install the new
pressure regulator using the new screws
supplied with the kit. Tighten screws to 25
In. lb. torque.

Pilot for SIT Millivolt

Gas Valve

Pilot
Orifice

Figure 59

b. Attach manometer to the manifold side
pressure test fitting and verify manifold
pressure reads 3.5 inches water column (0.87
kPa) for natural gas, and 10.0 inches water
column (2.49 kPa) for propane gas.
c. Refer to Figure 59 and remove the pilot
hood assembly to access the hexed pilot orifice.
Remove and replace the orifice with the one
provided with the kit.

Step 5. Millivolt Appliances

Honeywell Systems -

a. Convert the gas valve as follows
(see Figure 60): Remove the plastic protecting
cap. Remove the gas type setting screw by
turning it counterclockwise. Obtain the replace­ment gas type setting screw from the kit and
screw it into place (red for propane and blue
for natural gas). Tighten the gas type setting
screw by turning it clockwise. Replace the
plastic protecting cap.

Note - Use extra care not to engage the
orifice strip with the 7/16" open end wrench
(contacting the orifice strip could cause strip
distortion rendering the pilot inoperative).
Also avoid wrench contact to any of the
other pilot parts.

Use a 7/16" open end wrench and turn the
pilot hex fitting counter-clockwise 1/4 turn.
(See Figure 62 ).

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 (see Figures 61 & 62 ).
The type of gas for which the pilot is set,
is, the gas type shown on the tab.

e. Retighten, clockwise, the pilot hex
fitting until the pilot hood aligns with the
thermocouple and thermopile as indicated
by the arrows shown in Figure 62.

Pilot for Honeywell Millivolt Gas Valve

Orifice Strip Tab Position Identification

For LP (propane gas) and Natural Gas

LP (propane) Gas Posi­tion - 1/16 inch hole,
LP and red color shown
on tab.

Natural Gas Position

- NAT shown on tab.

Top View of Hex Fiting and Orifice Strip Tab

Figure 61

Pilot for Honeywell Millivolt Gas Valve

(Loosening of Hex Fitting For
Orifice Strip Tab Positioning)

Hood

Hood
Alignment

SIT Millivolt Gas Valve

Pressure

Regulator

Figure 58

Remove
These
Components

Figure 60

b. Attach manometer to the manifold side
pressure test fitting and verify manifold
pressure reads 3.5 inches water column
(0.87 kPa) for natural gas, and 10.0
inches water column (2.49 kPa) for pro­pane gas.

c. Convert the pilot orifice as follows (see

Figures 61 & 62):

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

7/16 in. Open
End Wrench

Orifice
Strip Tab

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

35

Retaining
Clip

Ignitor
Assembly

Pilot
Assembly

Pilot

Orifice

Flare Nut

Step 6. Electronic Appliances -

Spring

Adjusting
Screw

Slotted
Cap

P

S

I

OFFION

CONTROL

I

G
N
I

T
E

Manifold
Pressure
Test Port

Inlet Pressure Test Port

Honeywell Systems

See Figure 63 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 inches water
column (2.49 kPa) for propane gas.

See Figure 64 and replace the pilot orifice
as follows: Remove the Igniter assembly
retainer clip, and carefully remove the Igniter
assembly.

Exercise extreme care to prevent damage to or
breakage of the Igniter assembly. Remove the
screw securing the pilot assembly to its mount­ing bracket. Back off the flare nut at the end
of the pilot gas line to free the pilot assembly
from the gas line. Remove the pilot orifice
and replace it with the one provided with the
conversion kit. Reinstall the pilot assembly
by reversing the steps detailed here.

When reinstalling the Igniter assembly, use
extreme care to prevent damage and break­age. Do not apply any leverage to the Igniter
assembly while restoring the retainer clip to
its original position.

Burner Orifice Sizes

Elevation 0-4500 feet ( 0-1372 meters)

Model
Series

SSDV-3328T/R

* Standard size installed at factory

• Part /Cat. Number

Natural

Gas

#45

Table 14

Figure 65

Propane

Gas

0.048
inch

Figure 63

All Models

Step 7. Remove the burner orifice from the

manifold and replace it with the one
provided with the kit. See Table 14
for orifice sizes required for use with
natural gas or propane gas. Figure 65
illustrated the orifice.

Step 9. Reassemble all removed components

by reversing the procedures outlined
in the preceding steps. Use pipe joint
compound or Teflon tape on all pipe
fittings before installing (ensure pro­pane resistant compounds are used in
propane applications, do not use pipe
joint compounds on flare fittings).

Step 10. Attach the conversion label provided

in the conversion kit to the rating plate
on the appliance.

Step 11.Turn on gas supply and test for gas

leaks.

36

Note: If the Igniter is damaged, a replacement kit is available - order Catalog Number
87L54.

Figure 64

Lennox Hearth Products 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. © 2007 by LHP

P/N 700,043M REV. A 06/2008

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

LHP
1110 West Taft Avenue • Orange, CA 92865