Desa VDDVF36STN-STP, VDDVF36PN-PP User Manual

DIRECT-VENT GAS FIREPLACE

OWNER’S OPERATION AND

INSTALLATION MANUAL

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(Peninsula Shown)

VDDVF36PN/PP (PENINSULA) AND VDDVF36STN/STP (SEE-THRU)

WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury, or loss of life.

— Do not store or use gasoline or other flammable

vapors and liquids in the vicinity of this or any other appliance.

— WHAT TO DO IF YOU SMELL GAS :

• Do not try to light any appliance.

• Do not touch any electrical switch;

• Do not use any phone in your building.

• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

• If you cannot reach your gas supplier, call the fire department.

— Installation and service must be performed by a quali-

fied installer, service agency, or the gas supplier.

SAVE THIS BOOK

This book is valuable. In addition to instructing you on how to install and maintain your appliance, it also contains information that will enable you to obtain replacement parts or optional accessory items when needed. Keep it with your other important papers.

WARNING: Improper installation, adjustment, alteration, service, or maintenance to this appliance 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.

WARNING: This Direct-Vent Gas Fireplace series is intended for use with Natural or Propane/LP gas only. Do not attempt to burn any solid fuels in these appliances.

CHECK LOCAL CODES PRIOR TO INSTALLATION

This appliance may be installed in an aftermarket* permanently located, manufactured (mobile) home, where not prohibited by state or 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.

* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer.

Save this manual for future reference.

TABLE OF CONTENTS

PRODUCT DIMENSIONS

TABLE OF CONTENTS

PRODUCT DIMENSIONS........................................................... 2

GLOSSARY OF TERMS............................................................. 3

INTRODUCTION......................................................................... 3

SELECTING LOCATION............................................................. 4

PRE-INSTALLATION PREPARATION ........................................ 5

GENERAL VENTING .................................................................. 7

VENTING INSTALLATION .......................................................... 9

INSTALLATION ......................................................................... 16

PILOT ASSEMBL Y ADJUSTMENT........................................... 20

BURNER FLAME ADJUSTMENT............................................. 20

OPERATING GUIDELINES AND MAINTENANCE

INSTRUCTIONS ....................................................................... 21

PRODUCT DIMENSIONS

Back of Surround

Right Side Surround

Left Side Surround

(Back)

23 5/8"

(60cm)

(30cm)

(Left Side)

/16"

1.5"ø

(4cm)

(Right Side)

/2"

(27cm)

Alternate Gas Supply Inlets

(Front)

1.5"ø

(4cm)

10 1/2"

(27cm)

CLEANING AND MAINTENANCE ............................................ 21

OPERATING FIREPLACE ........................................................ 22

TROUBLESHOOTING .............................................................. 24

WIRING DIAGRAM ................................................................... 28

ACCESSORIES ........................................................................ 28

SERVICE HINTS....................................................................... 28

TECHNICAL SERVICE ............................................................. 28

REPLACEMENT PARTS .......................................................... 29

REPLACEMENT PARTS LIST.................................................. 29

OWNER’S REGISTRATION FORM.......................................... 31

WARRANTY INFORMATION...................................... Back Cover

BA CK VIEWTOP VIEW

39 3/4"

(101cm)

3" (8cm)

/8"

(67cm)

1" (3cm)

(88cm)

/8"

(57cm)

3" (8cm)

2" (5cm)

/4"

1 1/4" (3cm)

RIGHT SIDE

/8"

(57cm)

32" (81cm) (Opening) 1

/8" (104cm)

Figure 1 - VDDVF36PN/PP (Peninsula) Dimensions

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Rating Plate Location

/8" (5cm)

FRONT VIEW

/8" (50cm)

(Opening)

25" (64cm)

30"

(76cm)

(Opening)

106918-01B

FIREBOX DIMENSIONS

Continued

PRODUCT DIMENSIONS

GLOSSARY OF TERMS

INTRODUCTION

Back of Surround

(Back)

Right Side Surround

Left Side Surround

23 5/8"

(60cm)

/4" (3cm)

22 5/8" (57cm)

(30cm)

/16"

10 1/2"

(27cm)

TOP VIEW

RIGHT SIDE

(Left Side)

1.5"ø (4cm)

(Right Side)

32" (81cm) (Opening)

/8" (110cm)

Alternate Gas Supply Inlets

11 1/8"

(28cm)

(Front)

/8" (5cm)

1.5"ø (4cm)

39 3/4"

(101cm)

Rating Plate Location

/8"

(67cm)

3" (8cm)

BA CK VIEW

1" (3cm)

FRONT VIEW

/8" (60cm)

25" (64cm)

(88cm)

/8"

22 (57cm)

3" (8cm)

2" (5cm)

30"

(76cm)

(Opening)

/4"

Figure 2 - VDDVF36STN/STP (See-thru) Dimensions

GLOSSARY OF TERMS

Chase - A boxlike enclosure to protect venting from the elements

when the venting run is on the outside of a structure.

Mastic - A pliable sealant for use around the vent terminal. Snorkel Termination - A box that raises the horizontal termination

above ground level clearances.

Vent Terminal - Mounted on an outside wall or roof to separate the

inlet and outlet of the vent system and protect it from weather.

Vinyl Siding Standoff - A metal box that separates the vent cap from

vinyl siding.

Wall Thimble/Firestop - A metal plate used to secure the vent pipe

when it passes through a wall or ceiling.

INTRODUCTION

WARNING: This product contains and/or generates chemicals known to the State of California to cause cancer or birth defects, or other reproductive harm.

Models VDDVF36PN/PP series are three-sided direct-vent gas fireplace with a sealed combustion chamber. Models VDDVF36STN/STP series are two-sided direct-vent gas fireplace with a sealed combustion chamber. All models use a millivolt gas control and a millivolt ignition system. All models have a manual HI/LO valve to control the flame height. A fan kit is available for these models as an option (see Accessories on page 28).

NOTICE: Check local building codes for area requirements before installing this appliance.

• Models VDDVF36PN and VDDVF36STN use NATURAL GAS ONLY.

• Models VDDVF36PP and VDDVF36STP use PROPANE/LP GAS ONLY.

106918-01B

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INTRODUCTION

Before You Begin

SELECTING LOCATION

INTRODUCTION

Continued

If you have any doubts as to which gas your particular appliance is approved and tested for, please check the CSA rating plate located at the interior of the appliance opening or consult your local distributor (see Figure 1, page 2 and Figure 2, page 3).

BEFORE YOU BEGIN

Before beginning the installation of your appliance, read these instructions through completely.

This DESA appliance and its approved components are safe when installed according to this installation manual and operated as recommended by DESA. Unless you use DESA approved components tested for this appliance, YOU MAY CAUSE A SAFETY

HAZARD!

The DESA warranty will be voided by, and DESA disclaims any responsibility for the following actions:

A) Modification of the appliance or any of the components manu-

factured by DESA unless otherwise permitted in writing by DESA.

B) The use of any components part not approved by DESA in

combination with this DESA appliance.

C) Installation and/or operation in a manner other than instructed

in this manual.

D) The burning of anything other than the type of gas approved

for use in this gas appliance.

This appliance, when installed, must be electrically grounded in accordance with local codes, or in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70 or the Canadian

Electrical Code, CSA C22.1.

The installation must conform with local codes or, in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.1 or the

Canadian Installation Code, CAN/CGA B149.

This appliance complies with ANSI Z21.50-1998/CSA 2.22-M48 as a VENTED GAS FIREPLACE. It is listed and tested by International Approval Services.

SELECTING LOCATION

To determine the safest and most efficient location for your appliance, consider the following guidelines:

1. The location must allow for proper clearances (see Clearances,

page 5).

2. Consider a location where heat output would not be affected

by drafts, air conditioning ducts, windows, or doors.

3. A location that avoids the cutting of joists or roof rafters makes

installation easier.

In selecting a location, the following precautions must be observed:

1. A projection may be ideal for a new addition on an existing fin-

ished wall. See Horizontal Termination Configuration, page 12, or Vertical Termination Configuration, pages 14 and 15.

2. Do not locate appliance close to where gasoline or other flam-

mable liquids may be stored. The appliance must be kept clear and free from combustible materials.

3. Do not connect this appliance to a chimney system used for

solid fuel burning fireplace.

4. Due to high temperatures, do not locate this appliance in high

traffic areas or near furniture and draperies.

5. This fireplace may be installed in bedrooms or bathrooms in

accordance with local codes.

6. Never obstruct the openings of the appliance or flow of venti-

lation air. Keep the control compartments accessible.

7. Do not use this appliance if any part has been under water. Im-

mediately contact a local service technician to examine the appliance and to replace any part(s) of the control ignition system and other related components that have submerged under water .

NOTICE: This appliance is intended to be used only for supplemental heat.

WARNING: Installation and repair should be done by a qualified installer/service person. The appliance should be inspected before use, and at least annually thereafter by a qualified service person. More frequent cleaning may be required due to excessive lint from carpeting, bedding, pet hair, etc. It is imperative that the control compartments, burners, and circulating air systems be kept clean.

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Figure 3 - Possible Installation of Peninsula Fireplace

106918-01B

PRE-INSTALLATION PREPARATION

Clearances

Mantel Clearances

Framing

CLEARANCES

Minimum clearances to combustibles are:

• Back and Sides of Surround: .................................. 0" min.

• Vent Surfaces: ............................................1" (2.5cm) min.

• Ceiling to Opening: ..................................36" (91cm) min.

• Floor: ...................................................................... 0" min.

• Wall to Front of Glass: .............................36" (91cm) min.

• Perpendicular Wall to Opening of Unit: .......2" (5cm) min.

• Top Spacer:............................................................. 0" min.

CAUTION: Do not block required air spaces with insulation or any other material. Do not obstruct the effective opening of the appliance with any type of facing material.

CEILING

36"

(91cm)

Min.

WALL

MANTEL CLEARANCES

Woodwork, such as wood trims, mantels, and other combustible materials projecting no more than 1 placed within 7 inches (17.8cm) from the opening of the unit. Combustible material above and projecting more than 1 1/2 inches (3.8cm) from the appliance’s face must not be placed less than 15 inches (38.1cm) from the louver opening (see Figure 6).

Combustible Material May Be Used

21"

(53.3cm)

Min.

15"

(38.1cm)

Min.

Top of Louver Opening

Figure 6 - Mantel Clearances for Peninsula and See-thru Fireplaces (Peninsula Shown)

12"

(30.5cm)

Min.

(10.2cm)

Min.

7" (17.8cm) Min.

/2 inches (3.8cm) shall not be

Drywall (Gypsum Board, Sheetrock, Etc.)

Safe Zone for Projection of Combustible Material

2 x 4

Spacer

/2" (3.8cm)

Min.

UNIT

36"

(91cm)

Min.

0" Floor

Figure 4 - Minimum Clearances (Peninsula Shown)

Left Side Surround

TOP VIEW

(0" Min.)

Combustible Material

Minimum 1"(2.5cm) Clearance from Side (Only for See-thru)

Right Side Surround (0" Min.)

Perpendicular Wall 2" (5cm)

2" (5cm)

Wall In Front Of Glass

36" (91cm) Min.

36"

(91cm)

Min. From Opening

Figure 5 - Minimum Clearances (See-thru Shown)

Drywall

2 x 4 Stud

FRAMING

Once the final location has been determined, observing height clearances for vent termination, you may construct framing using dimensions shown in Figure 7 and Figures 8 and 9, page 6, depending on your installation.

If the appliance is to be installed directly on carpeting, tile (other than ceramic), or any combustible material other than wood flooring, the appliance must be installed on a metal or wood panel extending the full width and depth of the appliance. There are three holes on each side of the bottom of the unit where screws can be used to secure the unit to the floor.

)

(60cm

(102.9cm

Figure 7 - Rough Opening for Installing Peninsula Fireplace

39 3/4"

(101cm)

)

Min.

106918-01B

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PRE-INSTALLATION PREPARATION

Framing (Cont.)

PRE-INSTALLATION PREPARATION

Continued

The gas supply line may be connected through the side framing or alternately through the lower sub-flooring or a platform base if provided (see Figures 10 and 11). Depending on the installation, refer to the appropriate illustration.

)

(60cm

39 3/4"

(101cm)

Min.

Platform Must Be Solid, Flat, and Fully Supported

(102.9cm

)

1" (2.5cm)

Dia. Hole

(2.5cm)

2" (5.1cm)

Dia. Hole

(7.6cm)

(5.1cm)

3" (7.6cm)

Figure 10 - Hole Locations For Gas Line and Electric Wires for Peninsula and See-thru Fireplaces

10"

(25.4cm)

Square Min.

Figure 8 - Rough Opening for Installing Peninsula Fireplace on Platform

* As required by design as long as ceiling clearance is maintained.

)

(60cm

39 3/4"

(101cm)

Min.

(109.8cm

/4"

)

Figure 9 - Rough Opening for Installing See-thru Fireplace

Height

Depends On

Installation

Figure 11 - Rough Opening for Installing Exterior Vent Terminal

Refer to Pages 10 through 16 for Horizontal and Vertical Installation Details

Vertical Height

Depends on

Installation

Elbow

/8"

(67cm)

Horizontal

Length Depends

on Installation

Figure 12 - Vent Opening Height

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106918-01B

GENERAL VENTING

These models are approved for use with Simpson Dura-Vent 6 5/8" direct-vent pipe components and terminations as well as both flex and rigid Vanguard vent components.

Your fireplace is approved to be vented either through the side wall, or vertically using the following guidelines:

• Only use Vanguard or Simpson Dura-Vent GS venting components or kits specifically approved for this fireplace.

• Minimum clearance between vent pipes and combustible materials is 1" (25 mm), except where stated otherwise.

• Combustible material may be flush with the top front of fireplace with a maximum thickness of 3/4".

• Do not recess venting terminals into a wall or siding.

• Install horizontal venting with a 1/4" rise for every 12" of run toward the termination.

• You may paint the vent terminal with 450°F (232°C) heat-resistant paint to coordinate with the exterior finish.

• There must not be any obstruction such as bushes, garden sheds, fences, decks, or utility buildings within 24" from the front of the termination cap.

• Do not locate termination cap where excessive snow or ice build up may occur. Be sure to clear vent termination area after snow falls to prevent accidental blockage of venting system. When using snow blowers, do not direct snow towards vent termination area.

Location Of Vent Termination

GENERAL VENTING

LOCATION OF VENT TERMINATION

When locating vent termination, it is important to observe the minimum clearances shown in Figure 13, page 8. You will avoid extra framing by positioning your fireplace against an already existing framing member. The sides of the fireplace may be positioned directly against combustible walls.

*Check with local codes or with the current CAN/CGA B149[.1 or .2] Installation Codes for Canada or the USA installations follow the current National Fuel Gas Code, ANSI Z223.1/NFPA 54.

106918-01B

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GENERAL VENTING

Location Of Vent Termination (Cont.)

GENERAL VENTING

TERMINATION CAP

A = clearance above grade, veranda, porch, deck, or balcony

[*12 inches (30.5cm) minimum]

B = clearance to window or door that may be opened

[12 inches (30.5cm) minimum]

C = clearance to permanently closed window [minimum 12 inches

(30.5cm) recommended to prevent condensation on window]

D = vertical clearance to ventilated soffit located above the terminal

within a horizontal distance of 24 inches (61cm) from the

center-line of the terminal [18 inches (45.7cm) minimum] E = clearance to unventilated soffit [12 inches (30.5cm) minimum] F = clearance to outside corner (see below) G = clearance to inside corner (see below) H = *not to be installed above a meter/regulator assembly within

36 inches (91.4cm) horizontally from the center-line of the regulator

vent shall not terminate directly above a side-walk or paved driveway which is located between two single family dwellings and serves both dwellings* only permitted if veranda, porch, deck or balconey is fully open on a minimum of 2 sides beneath the floor*

* as specified in CAN/SGA B149 (.1 or .2) Installation Codes (1991) for Canada or for U.S.A. installation follow

the current

Note: Local codes or regulations may require different clearances

National Fuel Gas Code, ANSI Z223.1

Fixed

Closed

Openable

Continued

Openable

AIR SUPPLY INLET

Fixed

Closed

V A

I = clearance to service regulator vent outlet [*72 inches (182.9cm)

minimum]

J = clearance to non-mechanical air supply inlet to building or the

combustion air inlet to any other fireplace [*12 inches (30.5cm) minimum]

K = clearance to a mechanical air supply inlet [*72 inches (182.9cm)

minimum]

L = clearance above paved side-walk or a paved driveway located on

public property [*84 inches (213.4cm) minimum] M = clearance under veranda, porch, deck [*12 inches (30.5cm) minimum ] N = clearance above a roof shall extend a minimum of 24 inches (61cm)

above the highest point when it passes through the roof surface and

any other obstruction within a horizontal distance of 18 inches (45.7cm)

Termination Clearances for Buildings with Combustible and Noncombustible Exteriors

Inside Corner

Outside Corner Recessed Location

GAS METER RESTRICTED AREA

(TERMINATION PROHIBITED)

Balcony with No Side Wall

G = Combustible 24" (61cm)

Noncombustible 18" (45.7cm)

A = 6" (15.2cm)

Balcony with Perpendicular Side Wall

Combustible & Noncombustible H = 24" (61cm) J = 20" (50.8cm)

Figure 13 - Minimum Clearances for Vent Terminations

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B = 6" (15.2cm)

C = Maximum depth of 48" (121.9cm) for

recessed location

D = Minimum width for back wall of

recessed location Combustible - 38" (96.5cm) Noncombustible - 24" (61cm)

E = Clearance from corner in

recessed locationCombustible - 6" (15.2cm) Noncombustible - 2" (5.1cm)

106918-01B

VENTING INSTALLATION

Installation Precautions

Installation Planning

WARNING: Read all instructions completely and thoroughly before attempting installation. Failure to do so could result in serious injury, property damage or loss of life. Operation of improperly installed and maintained venting system could result in serious injury, property damage or loss of life.

WARNING: Seal all pipe to pipe connections with high temperature silicone (600°F/316° C) every time a vent connection is made. Before joining elbows and pipes, apply a bead of high temperature silicone sealant (GE RTV 106/Loctite RTV 81585) to the male end of the elbow or pipe. High temperature silicone must also be used to reseal any connections after maintenance to venting system.

NOTICE: Do not seal termination cap to pipe. Cap must be removable for servicing vent system.

NOTICE: Failure to follow these instructions will void the warranty.

INSTALLATION PRECAUTIONS

Consult local building codes before beginning the installation. The installer must make sure to select the proper vent system for installation. Before installing vent kit, the installer must read this fireplace manual and vent kit instructions.

Only a qualified installer or service person should install venting system. The installer must follow these safety rules:

• Wear gloves and safety glasses for protection

• Use extreme caution when using ladders or when on roof tops

• Be aware of electrical wiring locations in walls and ceilings The following actions will void the warranty on your venting

system:

• Installation of any damaged venting component

• Unauthorized modification of the venting system

• Installation of any component part not manufactured or approved by DESA International

• Installation other than as instructed by these instructions

WARNING: This gas fireplace and vent assembly must be vented directly to the outside. The venting system must NEVER be attached to a chimney serving a separate solid fuel burning appliance. Each gas appliance must use a separate vent system. Do not use common vent systems.

WARNING: Horizontal sections of this vent system require a minimum clearance of 2" from the top of the vent pipe and 1" minimum to the sides and bottom. Vertical sections of this system require a minimum of 1" clearance to combustible materials on all sides of the vent pipe.

INSTALLATION PLANNING

There are two basic types of direct-vent installation:

• Horizontal T ermination

• Vertical Termination It is important to select the proper length of vent pipe for the type of

termination you choose. It is also important to note the wall thickness.

For Horizontal Termination: Select the amount of vertical rise

desired. The horizontal run of venting must have 1/4" rise for every 12" of run towards the termination.

WARNING: Never run the vent downward as this

may cause excessive temperatures which could cause a fire.

You may use one or two 90° elbows in this vent configuration. See Horizontal Termination Configurations on page 12.

For Vertical Termination: Measure the distance from the fireplace

flue outlet to the ceiling. Add the ceiling thickness, the vertical rise in an attic or second story, and allow for sufficient vent height above the roofline. You may use one or two 90° elbows in this vent configuration. See Vertical Termination Configurations on pages 14 and 15.

Note:

You may use two 45° elbows in place of a 90° elbow. You

must follow rise to run ratios when using 45° elbows. For two-story applications, firestops are required at each floor

level. If an offset is needed in the attic, additional pipe and elbows will be required.

You may use a chase with a vent termination with exposed pipe on the exterior of the house. See Installing Vent System in a Chase, page 10.

Your Vanguard direct-vent fireplace has been tested for a minimum 3' rise with a maximum 10" wall thickness. The maximum horizontal run is 20' with 8' vertical rise (see Installation for Horizontal Termination, pages 10 through 12). The maximum vertical run is 30' (see Installation for Vertical Termination, pages 12 through 15).

It is very important that the venting system maintain its balance between the combustion air intake and the flue gas exhaust. Certain limitations apply to vent configurations and must be strictly followed.

106918-01B

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VENTING INSTALLATION

Installation Planning (Cont.) Installation For Horizontal Termination

VENTING INSTALLATION

Continued

Installing Vent System in a Chase

A chase is a vertical boxlike structure built to enclose venting that runs along the outside of a building. A chase is not required for such venting.

Snorkel

NOTICE: Treatment of firestops and construction of the chase may vary from building type to building type. These instructions are not substitutes for the requirements of local building codes. You must follow all local building codes.

Note:

When installing in a chase, you should insulate the chase as you would the outside walls of your home. This is especially important in cold climates. Minimum clearance between vent pipes and combustible materials such as insulation is 1" (2.5cm).

After framing the chase (see Framing on pages 5 and 6) install the vent system by following the installation instructions.

INSTALLATION FOR HORIZONTAL TERMINATION

CAUTION: Horizontally terminated venting con-

figurations require one foot of vertical rise from the 45° elbow before any horizontal run can be made. Failure to meet venting requirements may cause performance problems and possible damage to the fireplace.

1. Determine the route your horizontal venting will take. Note:

The location of the horizontal vent termination on the exterior wall must meet all local and national building codes and must not be blocked or obstructed.

WARNING: Do not recess vent terminal into a wall

or siding.

Snorkel terminations are available for terminations requiring a vertical rise on the exterior of the building (see Figures 14 and

15). Snorkel kit SVK is also available (see page 15). Follow the same installation procedures used for standard horizontal terminations. If installing the snorkel termination below grade (basement applications), you must provide proper drainage to prevent water from entering the snorkel termination (see Figure

15). Do not back fill around the snorkel termination.

2. Rigid vent pipes and fittings have special twist-lock connections.

Assemble the desired combination of pipe and elbows to the appliance adaptor with pipe seams oriented towards the wall or floor.

Twist-lock Procedure: The female ends of the pipes and fittings have four locking lugs (indentations). These lugs will slide straight into matching slots on the male ends of adjacent pipes and fittings. (All connections must be sealed with high temperature silicone sealant as specified in the second warn-

90º

1' Minimum

45º

Figure 14 - Snorkel Termination

90º

1' Minimum

45°

Figure 15 - Snorkel Termination with Drainage Pipe

Female Locking Lugs

Male Slots

Rigid Vent Pipe Flexible Vent Pipe

Figure 16 - Vent Pipe Connections

Spacer Spring

12" Minimum

Snorkel

12" Minimum

4" Clamp

4" Flex Pipe

Adequate Drainage

7" Clamp

7" Flex Pipe

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106918-01B

VENTING INSTALLATION

Continued

Installation For Horizontal Termination (Cont.)

VENTING INSTALLATION

ing statement on page 9.) Push the pipe sections together and twist one section clockwise approximately one-quarter turn until the sections are fully locked. See Figure 16.

Note:

Horizontal runs of vent must be supported every three feet. Use wall straps for this purpose.

Flexible vent pipe must be installed with spacer springs every 12" (30.5cm). See Figure 16, page 10. All connections must be clamped tightly and sealed with high temperature silicone sealant as specified in the second warning statement on page 9.

3. Attach vent pipe assembly to the fireplace. Set fireplace in front of it’s permanent location to insure minimum clearances. Mark the wall for a 10" square hole (for noncombustible material such as masonry block or concrete, a 7

/2" (19.1cm) diameter hole is acceptable). See Figure 17. The center of the hole should line up with the center-line of the horizontal rigid vent pipe. Cut a 10"x10" (25.4cm x 25.4cm) square hole through combustible exterior wall (7 1/2" [19.1cm] diameter hole if noncombustible). Frame as necessary (see Figure 17).

4. Noncombustible Exterior Wall: Apply a bead of non-harden- ing mastic around the outside edge of the vent cap. Position the vent cap in the center of the 7 1/2" (19.1cm) hole on the exterior wall with the arrow on the vent cap pointing up. Attach the vent cap with four wood screws provided (see Figure 18).

Note

: Replace the wood screws with appropriate fasteners for stucco, brick, concrete, or other types of siding.

WARNING: Do not recess vent termination in to

any wall. This will cause a fire hazard.

Combustible Exterior W all: For vinyl siding, stucco, or wood

exteriors, a siding standoff must be installed between the vent cap and exterior wall. The siding standoff prevents excessive heat from damaging siding materials. Siding materials must be cut to accommodate standoff. Bolt the vent cap to the standoff. Apply non-hardening mastic around outside edge of the standoff. Position the standoff/cap assembly in the center of the 10" (25.4cm)square hole and attach to exterior wall with wood screws provided (see Figure 19). The siding standoff must sit flush against the exterior fascia material.

Combustible Exterior Wall Only: Slide the interior wall

firestop over the vent pipe before connecting the horizontal run to the vent cap (see Figure 20).

6. Carefully move the fireplace with vent assembly attached toward the wall and insert the vent pipe into the horizontal termination. The pipe overlap should be a minimum of 1 1/4" (3.2cm). Fasten all vent pipe connections (except vent cap) with screws provided. Refer to Framing on pages 5 and 6 for instructions on securing unit to framing or floor.

7. Combustible Exterior Wall Only: Slide the wall firestop against the interior wall surface and attach with screws provided (see Figure 20).

Cut Vinyl Siding Away to Fit Standoff

Standoff

Wood Screw

Figure 17 - Vent Opening Requirements

Figure 18 - Installing Horizontal Vent Cap

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106918-01B

Vent Cap

Wood Screw

Vent Cap

Apply Mastic to All Four Sides

Figure 19 - Installing Vinyl Siding Standoff (Combustible Exterior Wall)

Interior Wall Surface

Vent Cap (Horizontal Termination)

Figure 20 - Connecting Vent Cap with Horizontal Vent Pipe

Bolt

Interior Wall Firestop (Combustible Exterior Wall Only)

Horizontal Vent Pipe

Screw

+ 23 hidden pages