Desa Tech MSTDVN, MSTDVP Owner's Manual

CAST IRON STOVE AND DIRECT-VENT (FREESTANDING FIREPLACE HEATER)

BURNER SYSTEM

OWNER’S OPERATION AND INSTALLATION MANUAL

NATURAL GAS BURNER SYSTEM MODEL MSTDVN

PROPANE/LP GAS BURNER SYSTEM MODEL MSTDVP

REMOTE READY

IMPORTANT: This direct-vent burner system must be installed into approved Sun Valley cast iron stove bodies, models MC(*) series ONLY. See page 3 of this manual.

QUALIFIED INSTALLER: If you encounter problems during installation of this product, please contact DESA International’s Technical Service Department at 1-800-337-2564.

* Indicates Color Suffix Designation

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

FOR YOUR SAFETY

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.

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

WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause injury or property damage. Refer to this manual for correct installation and operational procedures. For assistance or additional information consult a qualified installer, service agency, or the gas supplier.

— Installation and service must be performed by 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.

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

Save this manual for future reference.

SUN VALLEY STOVE COMPANY

CAST IRON STOVE AND BURNER SYSTEM

SAFETY INFORMATION

WARNINGS

IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, operate, or service this stove and burner system. Improper use of this stove and burner system can cause serious injury or death from burns, fire, explosions, electrical shock, and carbon monoxide poisoning.

DANGER: Carbon monoxide

poisoning may lead to death!

This stove with burner system is a vented product. This stove with burner system will not produce any gas leakage into your home if properly installed. This stove with burner system must be properly installed by a qualified service person. The glass door must be properly seated and sealed. If this unit is not properly installed by a qualified service person with glass door properly seated and sealed, gas leakage can occur.

Carbon Monoxide Poisoning: Early signs of

carbon monoxide poisoning resemble the flu, with headaches, dizziness, or nausea. If you have these signs, the stove with burner system may not have been installed properly. Get fresh air at once! Have stove with burner system inspected and serviced by a qualified service person. Some people are more affected by carbon monoxide than others. These include pregnant women, people with heart or lung disease or anemia, those under the influence of alcohol, and those at high altitudes.

Propane/LP gas and natural gas are both odorless. An odor-making agent is added to each of these gases. The odor helps you detect a gas leak. However, the odor added to these gases can fade. Gas may be present even though no odor exists.

Make certain you read and understand all warnings. Keep this manual for reference. It is your guide to safe and proper operation of this stove and burner system.

WARNING: Any change to this stove or burner system or its controls can be dangerous.

1. This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases unless a certified kit is used.

2. For propane/LP burner system, do not place propane/LP supply tank(s) inside any structure. Locate propane/LP supply tank(s) outdoors. T o prevent performance problems, do not use propane/LP fuel tank of less than 100 lbs. capacity.

3. If you smell gas

• shut off gas supply

• do not try to light any appliance

• do not touch any electrical switch; do

not use any phone in your building

• immediately call your gas supplier

from a neighbor’s phone. Follow the gas supplier’s instructions

• if you cannot reach you gas supplier ,

call the fire department.

4. Never install the stove

• in a recreational vehicle

• where curtains, furniture, clothing, or

other flammable objects are less than 42" from the front, top, or sides of the stove

• in high traffic areas

• in windy or drafty areas

5. This stove reaches high temperatures. Keep children and adults away from hot surfaces to avoid burns or clothing ignition. Stove will remain hot for a time after shutdown. Allow surfaces to cool before touching.

6. Carefully supervise young children when they are in the room with stove.

7. Do not modify the burner or stove under any circumstances. Any parts removed for servicing must be replaced prior to operating stove or burner system.

8. Turn burner system off and let cool before servicing, installing, or repairing. Only a qualified service person should install, service, or repair the stove or burner system. Have burner system inspected annually by a qualified service person.

9. You must keep control compartments, burners, and circulating air passages clean. More frequent cleaning may be needed due to excessive lint and dust from carpeting, bedding material, pet hair, etc. Turn off the gas valve and pilot light before cleaning stove or burner system.

10. Have venting system inspected annually by a qualified service person. If needed, have venting system cleaned or repaired. See Cleaning and Mainte- nance, page 28.

11. Keep the area around your stove clear of combustible materials, gasoline, and other flammable vapor and liquids. Do not run burner system where these are used or stored. Do not place items such as clothing or decorations on or around stove.

12. Do not use this stove to cook food or burn paper or other objects.

13. Never place anything on top of stove.

14. Do not use any solid fuels (wood, coal, paper, cardboard, etc.) in this stove. Use only the gas type indicated on burner system nameplate.

15. This appliance, when installed, must be electrically grounded in accordance with local codes or, in the absence of local codes, with the National Electri-

cal Code, ANS/NFPA 70, or the Canadian Electrical Code, CSA C22.1.

16. Do not obstruct the flow of combustion and ventilation air in any way . Provide adequate clearances around air openings into the combustion chamber along with adequate accessibility clearance for servicing and proper operation.

17. Do not install stove directly on carpeting, vinyl tile, or any combustible material other than wood. The stove must set on a metal or wood panel extending the full width and depth of the stove.

18. Do not use stove or burner if any part has been exposed to or under water. Immediately call a qualified service person to arrange for replacement of the unit.

19. Do not operate burner system if any log is broken.

20. Do not use a blower insert, heat exchanger insert, or other accessory not approved for use with this stove.

21. Do not operate burner system with glass door removed, cracked, or broken.

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OWNER’S MANUAL

PRODUCT IDENTIFICATION

Cast Iron Stove Body

Log Set

Vent Opening

Piezo Ignitor

OFF

Control Valve

Cast Iron Stove Body

LOCAL CODES

Install and use stove and burner system with care. Follow all local codes. In the absence to local codes, use the current National Fuel Gas Code, ANS Z223.1, also known as NFPA 54* (USA) or the current CAN/CGA-B149[.1 or .2] Installation Codes (Canada).

*Available from:

American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

PRODUCT FEATURES

OPERATION

This cast iron stove with burner system is clean burning and vents easily through outside walls or vertically using outside air for combustion. Heat is generated by both realistic flames and glowing embers. When used without the blower accessory, the stove with burner system requires no electricity making it ideal for emergency backup heat.

ON/OFF Switch (Opposite Side)

Rear Cover

Burner

Pilot Assy

Glass Door Assy

Lava Rock

Blower with Adjustment Knob (Optional Installation)

Figure 1 - Sun Valley Direct-Vent Burner System Shown Installed in Approved Sun Valley Cast Iron Stove Body Models MC Series Only

Glowing Embers

Grate Assembly

PIEZO IGNITOR

This burner system has a piezo ignitor. This system requires no matches, batteries, or other sources to light burner system.

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.

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SUN VALLEY STOVE COMPANY

Front

CAST IRON STOVE AND BURNER SYSTEM

PRE-INSTALLATION PREPARATION

WARNING: A qualified installer or service person must install stove and burner system. Follow all local codes.

CAUTION: This stove creates warm air currents. These currents move heat to wall surfaces next to stove. Installing stove next to vinyl or cloth wall coverings or operating stove where impurities (such as tobacco smoke, aromatic candles, cleaning fluids, oil or kerosene lamps, etc.) in the air exist, may discolor walls.

LOCATION AND SPACE REQUIREMENTS

Determine the safest and most efficient location for your Sun Valley cast iron stove. Make sure that rafters and wall studs are not in the way of the venting system. Choose a location where the heat output is not affected by drafts, air conditioning ducts, windows, or doors. Figure 2 shows some common locations. Read all venting information in this manual. Be aware of all restrictions and precautions before deciding the exact location for your stove.

When deciding the location of your stove, follow these rules:

1. Do not connect this stove and burner system to a chimney flue serving a separate solid-fuel burning fireplace or appliance.

2. Due to high temperatures, do not locate this stove in high traffic areas or near furniture or draperies.

3. Proper clearances must be maintained, see Figures 3 and 4.

4. This stove is a freestanding unit designed to set directly on the floor. If your stove is to be installed directly on carpeting, vinyl tile, or any combustible material other than wood, it must be installed on a metal or wood panel extending the full width and depth of the stove. See Figure 5.

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On Wall with Vertical Termination Through Ceiling

Figure 2 - Common Stove Locations

Figure 3 - Minimum Clearances for Standard Installation

Figure 4 - Minimum Clearance for Corner Installation

On Wall with Horizontal Termination

Ceiling

42"

36"

from

Front

Floor

Corner Installation

from

Back

Wall

29"

27 1/2"

Front

Figure 5 - Stove with Burner System Bottom Dimensions

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CAST IRON STOVE

OWNER’S MANUAL

AND DIRECT-VENT BURNER SYSTEM ASSEMBLY

STOVE BODY ASSEMBLY

1. Lift off corrugated box enclosing stove body crating.

2. Remove all screws fastening the wood frame enclosure. Spread wood frame open and lift away from plastic-bagged stove body. The bottom pieces of pallet wood will remain bolted to the stove body.

3. Remove plastic bag from stove body.

4. Remove back panel from stove (see Figure 6). Use an adjustable wrench or a 10 mm socket. Remove six (6) bolts and washers. Keep bolts and washers to attach rear cover.

5. Remove all contents from inside stove cavity. Contents include:

(1) - Stove bottom (Discard - Not used

with this application) (4) - Legs with leg leveler bolts (1) - Bottom door (3) - Top grates (2) - Brackets (1) - Hardware kit bag with fasteners

6. Carefully lay stove body on back to attach bottom components to stove body (see Figure 7). Rest stove on drop cloth or blanket to avoid scratching stove edges.

7. Remove remaining pallet wood attached to bottom of stove body (see Figure 8). Use an adjustable wrench to remove bolts.

8. Fasten each leg to stove with four (4) M8 x 1.25 - 20mm bolts. Use a flat washer and lock washer with each bolt. Tighten bolts into threaded holes on stove body (see Figure 9 and Figure 10 on page 6). Use an adjustable wrench or a 12mm socket.

Bolt

Back Stove Panel

Figure 6 - Removing Back Panel

Front of Stove Unit

Drop Cloth/ Blanket

Figure 7 - Laying Down Stove On Side

Pallet Wood

Figure 8 - Removing Pallet Wood From The Bottom of The Stove

Product Identification Label

Bolt

Door Hinge Step Bolt Hole

Leg Hole

Top of Stove Unit

Pallet Wood Bolted to Bottom of Stove Body

Front

Front of Stove Unit

Pallet Wood

Bottom Of Stove Unit

Door Catch Bolt With Adjustable Hex Nuts Hole

Top of Stove Unit

Leg Hole

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Bottom Of Stove Unit

Figure 9 - Locating Threaded Holes for Legs, and Door Attachment

Leg Hole

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Continued

SUN VALLEY STOVE COMPANY

CAST IRON STOVE AND BURNER SYSTEM

CAST IRON STOVE AND DIRECT-VENT BURNER SYSTEM ASSEMBLY

Continued

9. Attach stove door by inserting step bolt through door hinge pivot hole and into threaded hole in stove body (see Figure 11 and Figure 9, page 5). Use an adjustable wrench or a 12mm socket to fasten step bolt. Tighten step bolt until snug. Make sure door moves freely.

Washers

Bolt

Figure 10 - Attaching Stove Legs

Stove Door Panel

Door Hinge

Step Bolt

Bolt Shoulder

Figure 11 - Attaching Lower Stove Door Panel

Bottom Of Stove Unit

Leg

Threaded Hole

10. Install door catch bolt (M8 x 1.25-55mm with two M8 hex nuts) into threaded hole on stove body (see Figure 9, page

5). Use an adjustable wrench or a 12mm socket. The catch bolt has two hex nuts attached to it (see Figure 12). The top nut is a bolt stop and the bottom nut is for door leveling adjustment.

11. Check general catch bolt alignment with door claw. Make final adjustment and door leveling after stove is in normal standing position.

12. Carefully lift stove back up on its four attached legs.

13. Remove 2 bolts from bottom of stove and discard. Remove bolt from the top of the stove to remove the front panel assembly (see Figure 13). If not removing screen, proceed to step 17.

14. Optional Screen Removal: Lay the front panel assembly face down on a protected surface. Remove the two screws that hold the front plate onto the front surround plate (see Figure 14). Save these screws.

15. Remove the seven screws and washers that hold the screen onto the front surround plate. Discard these screws, washers, and screen. They are required for vent-free use only (see Figure 14).

16. Replace the two screws from step 15 to reassemble the front plate and the front surround plate. Set this assembly aside until burner system has been installed, logs have been placed inside of burner system, and glass door to burner system insert has been replaced.

17. Remove the four screws that secure the metal plate located across the front section at the top of the stove body (see Figure 15). Discard these screws and metal plate. They are for vent-free use only.

Bolt Stop

Adjusting

Door Claw

Door

Nut

Catch Bolt

Stove Body

Front Assembly

Figure 13 - Removing Front Assembly

Front Surround Plate

Screw with Washer

Screen

Front Plate

Figure 14 - Removing Screen from Front Assembly

Screw

Metal Plate

Bolt

Screws

Stove Body

Figure 12 - Catch Bolt and Door Claw Orientation

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Figure 15 - Removing Metal Plate from Stove Body

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OWNER’S MANUAL

CAST IRON STOVE AND DIRECT-VENT BURNER SYSTEM ASSEMBLY

Continued

INSTALLING DIRECT-VENT BURNER SYSTEM INTO STOVE BODY

1. Carefully lift burner system and place into stove body from the rear of stove (see Figure 16).

2. Carefully insert small gasket into top vent hole of burner system box and align holes (see Figure 17).

3. Place 4" vent collar inside hole and align with gasket. Secure with hex screws provided (see Figure 17).

4. Place large gasket on outside of burner system box over vent hole and align (see Figure 17).

5. Place 7" vent collar over gasket and align holes. Secure with hex screws provided (see Figure 17).

IMPORTANT:

must not be installed until after burner system has been inserted into stove body.

6. Place the left and right grate top into top of stove body. Discard center grate top and replace with center cast top provided with burner system.

These gaskets and collars

Cast Iron Stove Body

Burner System

Figure 16 - Installing Burner System into Cast Iron Stove Body

Center Top Grate (Included with Burner System)

Hex Screw

7" Collar

Hex

Large Gasket

Screw

Left Top

4" Collar

Grate

Small Gasket

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Right Top Grate

Figure 17 - Installing Gaskets, Vent Collars, and Top Grates

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Continued

SUN VALLEY STOVE COMPANY

CAST IRON STOVE AND BURNER SYSTEM

CAST IRON STOVE AND DIRECT-VENT BURNER SYSTEM ASSEMBLY

Continued

INSTALLING OPTIONAL BLOWER ACCESSORY

NOTICE: If installing blower in an existing stove burner system with gas connections, shut off gas supply and disconnect heater from gas supply. Contact a qualified service person to do this.

1. Remove 4 hex screws securing rear cover to back of stove body (see Figure 18).

2. Separate bottom cover from rear cover by loosening the 8 mounting screws (see Figure 18).

3. Align the holes in the top mounting tabs of blower with the holes in wall of rear cover. Using the 4 screws provided, mount blower and tighten screws securely (see Figure 19).

4. Attach thermal switch and bracket to inside rear cover wall with two hex head screws provided as shown. After secur ing bracket to rear cover, carefully bend along existing bend line on bracket to almost a 90° angle (see Figure 19). This will allow thermal switch to be positioned against stove rear wall and sense temperature when in operating mode.

5. Place speed control on left inside of rear cover and push the plastic control shaft through opening (see Figure 19).

6. While supporting speed control, secure control shaft with lock nut by pushing and turning lock nut with pliers clockwise until tight against the side of rear cover. Place control knob provided onto shaft.

7. Place the green wire between the bottom hole on the blower assembly and the hex screw and tighten (see Figure 20, page 9).

8. Connect the blue wire to the blower assembly and to one side of the thermal switch (see Figure 20, page 9).

9. Connect the black wire to the other side of the thermal switch (see Figure 20, page 9).

10. Connect the white wire to the other terminal on the blower motor assembly (see Figure 20, page 9). Make sure the thermal switch has been properly installed to fit against back of fireplace insert after the rear cover assembly has been reinstalled.

11. Make sure all wire connections to terminals on blower motor and thermal switch are securely attached and that the screw retaining the green ground wire is tight.

12. Check to make sure that the power cord is completely clear of the blower wheel and that there are no foreign objects in blower wheel.

WARNING: Never touch the

blower wheel while in operation.

13. Peel off the backing paper and stick the supplied wiring diagram decal on the inside of rear cover as shown (see Figure 20, page 9).

14. Connect or reconnect gas supply following instructions in Connecting Stove/Burner System to Gas Supply, page 20.

Hex Screws

Stove Body

Bottom Cover

Figure 18 - Removing Rear Cover and Bottom Cover from Stove Body

Rear Cover

Mounting Screws

Hex Screw

Locknut

Blower Control Knob

Thermal Switch and Bracket

Mounting Holes

Blower Assembly

Figure 19 - Blower Assembly, Speed Control, and Thermal Switch Locations

Control Shaft

TOP VIEW

Speed Control

Screws

Mounting Holes

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OWNER’S MANUAL

CAST IRON STOVE AND DIRECT-VENT BURNER SYSTEM ASSEMBLY

Continued

WARNING: A qualified installer or service person must connect fireplace to gas supply. Follow all local codes.

15. Reattach bottom cover to rear cover with 8 screws (see Figure 18, page 8). Make sure that you don’t pinch any wires during reassembly.

WARNING: Failure to position the parts in accordance with supplied diagrams or failure to use only parts specifically approved with this heater may result in damage or personal injury.

Power Cord

Speed Control Box

Black Wire

Thermal Switch

Blue Wire

Screw

Green Ground Wire

Figure 20 - Blower Wiring Layout

(Route Through Plastic Bushing in Bottom Cover When Assembled)

White Wire

Wiring Diagram Decal

INSTALLING REAR COVER

1. Place rear cover behind stove body. Rear cover will rest on the bottom ledge of the stove body.

2. Place wire harness from ON/OFF switch under the cast of stove body.

3. Using hex screws provided, attach rear cover to back of stove body . See Figure 21.

IMPORTANT:

securely in place before venting pipes are installed.

4. Open lower door panel. The valve is attached to the underside of the burner system assembly.

5. Connect one terminal of the wire from ON/OFF switch to the THTP terminal on the valve. Connect remaining wire terminal to the TH terminal on the valve. Make sure that the wire terminals are in the positions on the unit as pictured in Figure 22. If wires are not connected as shown, the ON/OFF switch will not work.

Hex Screws

Figure 21 - Installing Rear Cover (Shown with Optional Blower Accessory)

Figure 22 - Control Valve Terminals

This rear cover must be

Rear Cover (Shown with Optional Blower)

ON/OFF Switch

ON/OFF Switch Wire Harness

Blower Power Cord

To Control Switch

GENERAL VENTING

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

Your stove with burner system is approved to be vented either through the side wall, or vertically using the following guidelines:

• Only use Sun Valley or Simpson DuraV ent GS venting components or kits specifically approved for this stove and burner system.

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

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

• If your house is covered with vinyl siding, you will need to use a vinyl siding standoff (see Figure 29, page 13).

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

• You may paint the vent termination with 450ºF (232ºC) 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.

• You must maintain minimum wall and ceiling clearances shown in Figures 3 and 4, page 4.

LOCATION OF VENT TERMINATION

When locating vent termination, it is important to observe the minimum clearances shown in Figure 23, page 10.

*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, ANS

Z223.1, also known as NFPA 54.

Continued

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SUN VALLEY STOVE COMPANY

CAST IRON STOVE AND BURNER SYSTEM

GENERAL VENTING

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

[*12 inches (305mm) minimum]

B = clearance to window or door that may be opened

[12 inches (305mm) minimum]

C = clearance to permanently closed window [minimum 12 inches

(305mm) recommended to prevent condensation on window]

D = vertical clearance to ventilated soffit located above the terminal

within a horizontal distance of 24 inches (610mm) from the

center-line of the terminal [18 inches (457mm) minimum] E = clearance to unventilated soffit [12 inches (305mm) 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 (914mm) 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

TERMINATION CAP

National Fuel Gas Code, ANS Z223.1

Continued

Fixed

Closed

Openable

AIR SUPPLY INLET

Fixed

Closed

I = clearance to service regulator vent outlet [*72 inches (1829mm)

minimum]

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

combustion air inlet to any other fireplace [*12 inches (305mm) minimum]

K = clearance to a mechanical air supply inlet [*72 inches (1829mm)

minimum]

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

public property [*84 inches (2133mm) minimum] M = clearance under veranda, porch, deck [*12 inches (305mm) minimum ‡] N = clearance above a roof shall extend a minimum of 24 inches (610mm)

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

any other obstruction within a horizontal distance of 18 inches (457mm)

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" (610mm)

Noncombustible 18" (457mm)

A = 6" (152mm)

Balcony with Perpendicular Side Wall

Combustible & Noncombustible H = 24" (610mm) J = 20" (508mm)

Figure 23 - Minimum Clearances for Vent Terminations

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B = 6" (152mm)

C = Maximum depth of 48" (1219mm) for

recessed location

D = Minimum width for back wall of

recessed location Combustible - 38" (965mm) Noncombustible - 24" (610mm)

E = Clearance from corner in

recessed locationCombustible - 6" (152mm) Noncombustible - 2" (51mm)

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OWNER’S MANUAL

VENTING INSTALLATION

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 vent connections. Seal only the outer pipe connections with high temperature silicone (600°F/316° C). 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 re-seal any connections after maintenance to venting 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 stove and burner system manual and vent kit instructions.

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

• Wear gloves and safety glasses for protection

• Use extreme caution when using ladders or when on 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 stove with burner system 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 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 pipe.

INSTALLATION PLANNING

There are two basic types of direct-vent installation:

• Horizontal Termination

• 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 pipe 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 Termina- tion Configurations on page 14.

For Vertical Termination: Measure the dis-

tance from the burner system 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 Ter- mination Configurations on pages 16 and 17.

Note:

When using Simpson Duravent pipe, you must order the vertical restrictor (shown in Figures 38 through 41 on pages 16 and

17) separately.

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, below.

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.

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 required for such venting.

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".

Continued

107280

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SUN VALLEY STOVE COMPANY

CAST IRON STOVE AND BURNER SYSTEM

VENTING INSTALLATION

Continued

INSTALLATION FOR HORIZONTAL TERMINATION

1. Determine the route your horizontal venting will take. of the horizontal vent termination on the exterior wall must meet all local and national building codes and must not be easily 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 24 and 25). Snorkel kit NSVKBK is also available (see page 18). 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 25). 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 pipes and fittings have 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 warning statement on page

11.) Push the pipe sections together and twist one section clockwise approximately one-quarter turn until the sections are fully locked. See Figure 26, page 13. must be supported every three feet. Use wall straps for this purpose.

Note:

The location

The female ends of

Horizontal runs of vent

Snorkel

12" Minimum

Figure 24 - Snorkel Termination

Snorkel

12" Minimum

Adequate drainage

Figure 25 - Snorkel Termination with Drainage Pipe

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