Desa Tech Indoor Fireplace CHDV34NA CHDV34PA User Manual

DIRECT-VENT FIREPLACE

OWNER’S OPERATION AND INSTALLATION MANUAL

NATURAL GAS MODEL CHDV34NA

PROPANE/LP GAS MODEL CHDV34PA

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.

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 assis-

tanceoradditionalinformationcon-

sult a qualified installer, service

agency, or the gas supplier.

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

— Installation and service must be

performed by a qualified installer,

service agency, or the gas supplier.

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.

— 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.

• If you cannot reach your gas supplier, call

the fire department.

This appliance may be installed in an aftermarket* manufactured (mobile) home, where

not prohibited by state or local codes.

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

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OWNER’S MANUAL

PRODUCT

LOCAL CODES

Install and use fireplace with care. Follow

alllocalcodes. Intheabsencetolocalcodes,

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).

IDENTIFICATION

Top Louver

Panel

Vent Opening

Standoff

*Available from:

American National Standards Institute, Inc.

Nailing

Flange

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

Glass Door

Assembly

PRODUCT

FEATURES

Log Set

OPERATION

This direct-vent fireplace 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 fireplace requires

no electricity making it ideal for emergency

backup heat.

Piezo Ignitor

Valve

Lava Rock

Lower Louver Panel

Glowing Embers

Grate

Assembly

Blower Adjustment

(Optional Installation)

PIEZO IGNITOR

This fireplace has a piezo ignitor. This sys-

tem requires no matches, batteries, or other

sources to light fireplace.

ON/OFF/REMOTE Switch

(Optional Installation)

Figure 1 - Comfort Glow Direct-Vent Fireplace CHDV Series

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 -Apliablesealantforusearoundthe

vent terminal.

SnorkelTermination -Aboxthatraisesthe

horizontal termination above ground level

clearances.

Vent Terminal - Mounted on an outside

wallorrooftoseparatetheinletandoutletof

the vent system and protect it from weather.

Vinyl Siding Standoff - A metal box that

separates the vent cap from vinyl siding.

WallThimble/Firestop -Ametalplateused

tosecuretheventpipewhenitpassesthrough

a wall or ceiling.

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CHDV34NA, PA

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

CLEARANCES

Minimum clearances to combustibles for

the fireplace are as follows:

Back, and sides

Perpendicular walls

Floor

Ceiling to louver opening 42" (1067mm)

Front

PRE-INSTALLATION

Must maintain a minimum

1" clearance to combustibles

PREPARATION

0"/mm

6" (152mm)

0"/mm

LOCATION AND SPACE

REQUIREMENTS

Determine the safest and most efficient loca-

tion for your Comfort Glow direct-vent fire-

place. 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 infor-

mation in this manual. Be aware of all re-

strictions and precautions before deciding

the exact location for your fireplace.

36" (914mm)

0"/mm

Top of Standoffs

See General Venting on page 5 for specific

venting clearances.

34"

FRAMING AND FINISHING

Figures 4 and 5 show typical framing of this

fireplace. Figure 6 on page 5 shows framing

for corner installation. All minimum clear-

ances must be met. Do not install fireplace

directly on carpeting, vinyl tile, or any com-

bustible material other than wood. The fire-

place must set on a metal or wood panel

extending the full width and depth of the

fireplace.

When deciding the location of your fire-

place, follow these rules:

1. Do not connect this fireplace to a chim-

ney flue serving a separate solid-fuel

burning fireplace or appliance.

20"

5/8" for drywall facing

2. Due to high temperatures, do not lo-

cate this fireplace in high traffic areas

or near furniture or draperies.

Figure5-FramingClearancesforTypical

Fireplace Installation

See Accessories on page 34 for mantel kits

available for this fireplace. If you are using

a separate combustible mantel piece, refer

to Figure 7 on page 5 for proper installation

height. You can install noncombustible

mantels at any height above the fireplace.

Note:Noncombustiblemantelsmaydiscolor!

3. Proper clearances must be maintained.

4. If your fireplace is to be installed di-

rectly 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 fireplace. See Figure 3.

Flush with a wall

Through exterior wall

enclosed in a chase

Corner

installation

34 ¹/4

Figure 2 - Common Fireplace Locations

34 ³/4

20" Vertical Termination

19" Horizontal Termination

Fireplace size

34"

x FW x RW

18 ¹/2" 34 ³/8

14"

Figure 4 - Framing Clearances for Installation Against an Exterior Wall

Figure 3 - Fireplace Bottom Dimensions

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OWNER’S MANUAL

PRE-INSTALLATION

GENERAL VENTING

PREPARATION

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 Comfort Glow vent

components.

Continued

Yourfireplaceisapprovedtobeventedeither

through the side wall, or vertically using the

following guidelines:

13"

9 /4

41"

• Only use Comfort Glow or Simpson Dura-

Vent GS venting components or kits spe-

cifically approved for this fireplace.

29"

• 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 maxi-

mum thickness of 3/4".

12 /8

34 /8

• Do not recess venting terminals into a

Nailing Tabs

35 /16"

wall or siding.

• Install horizontal venting with a 1/4" rise

for every 12" of run toward the termination.

58"

Figure 6 - Framing Clearances for Corner Installation

• You may paint the vent terminal with

450ºF (232ºC) heat-resistant paint to co-

ordinate 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.

Note: There must be

a minimum clear-

ance of 18" above

top of louver

Wall

• Do not locate termination cap where ex-

cessive snow or ice build up may occur.

Be sure to clear vent termination area af-

ter snow falls to prevent accidental block-

age of venting system. When using snow

blowers, do not direct snow towards vent

termination area.

opening when

installing a television

or entertainment

center above the

fireplace.

Location of Vent Termination

When locating vent termination, it is impor-

tant to observe the minimum clearances

shown in Figure 8, page 6. You will avoid

extra framing by positioning your fireplace

against an already existing framing mem-

ber. The sides of the fireplace may be posi-

tioned directly against combustible walls.

Top of Louver Opening

Ref. Mantel Depth Ref. Mantel from Top

of Louver Opening

14" (356mm)

12" (305mm)

10" (254mm)

8" (203mm)

6" (152mm)

4" (101mm)

2" (51mm)

16" (406mm)

14" (356mm)

12" (305mm)

10" (254mm)

8" (203mm)

6" (152mm)

4" (101mm)

*Check with local codes or with the current

CAN/CGAB149[.1or.2]InstallationCodes

for Canada or the USA Installations follow

the current National Fuel Gas Code, ANS

Z223.1, also known as NFPA 54.

Continued

Figure 7 - Clearances for Combustible Mantels

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CHDV34NA, PA

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

Continued

GENERAL VENTING

Fixed

Closed

Fixed

Closed

Openable

TERMINATION CAP

GAS METER

RESTRICTED AREA

(TERMINATION PROHIBITED)

AIR SUPPLY INLET

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

[*12 inches (305mm) minimum]

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

minimum]

B = clearance to window or door that may be opened

[12 inches (305mm) 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)

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 National Fuel Gas Code, ANS Z223.1

Note: Local codes or regulations may require different clearances

Termination Clearances for Buildings with Combustible and Noncombustible Exteriors

Inside Corner

Outside Corner

Recessed Location

A = 6" (152mm)

B = 6" (152mm)

Balcony with No Side Wall

Balcony with Perpendicular Side Wall

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 location-

Combustible &

Noncombustible

H = 24" (610mm)

J = 20" (508mm)

Combustible - 6" (152mm)

Noncombustible - 2" (51mm)

G = Combustible 24" (610mm)

Noncombustible 18" (457mm)

Figure 8 - Minimum Clearances for Vent Terminations

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OWNER’S MANUAL

• Installation of any component part not You may use one or two 90° elbows in this

manufactured or approved by DESA ventconfiguration.SeeVerticalTermination

VENTING

INSTALLATION

International

Configurations on pages 13 and 14.

• Installation other than as instructed by

these instructions

Note:You may use two 45° elbows in place

of a 90° elbow. You must follow rise to run

ratios when using 45° elbows.

WARNING: Read all instruc-

tions completely and thoroughly

before attempting installation.

Failure to do so could result in

serious injury, property damage

or loss of life. Operation of im-

properlyinstalledandmaintained

venting system could result in

serious injury, property damage

or loss of life.

WARNING: This gas fireplace

and vent assembly must be

vented directly to the outside.

TheventingsystemmustNEVER

be attached to a chimney serving

a separate solid fuel burning ap-

pliance.Eachgasappliancemust

use a separate vent system. Do

not use common vent systems.

For two-story applications, firestops are re-

quired at each floor level. If an offset is

needed in the attic, additional pipe and el-

bows will be required.

Youmayuseachasewithaventtermination

with exposed pipe on the exterior of the

house.SeeInstallingVentSysteminaChase,

below.

WARNING: Seal all vent con-

nections. Seal only the outer pipe

connectionswithhightemperature

silicone(600°F/316°C).Beforejoin-

ingelbowsandpipes,applyabead

of high temperature silicone seal-

ant(GERTV106/LoctiteRTV81585)

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.

Your Comfort Glow direct-vent fireplace

has been tested for a minimum 3' rise with a

maximum 10" wall thickness. The maxi-

mum horizontal run is 20' with 8' vertical

rise (see Installation for Horizontal Termi-

nation, page 8). The maximum vertical run

is30'(seeInstallationforVerticalTermina-

tion, page 12).

WARNING: Horizontal sec-

tions of this vent system require

a minimum clearance of 2" from

the top of the pipe and 1" mini-

mum to the sides and bottom.

Vertical sections of this system

require a minimum of 1" clear-

ancetocombustiblematerialson

all sides of the pipe.

It is very important that the venting system

maintain its balance between the combus-

tion air intake and the flue gas exhaust.

Certain limitations apply to vent configura-

tions and must be strictly followed.

INSTALLATION PLANNING

NOTICE: Failure to follow these

instructionswillvoidthewarranty.

There are two basic types of direct-vent

installation:

Installing Vent System in a Chase

INSTALLATION

PRECAUTIONS

• Horizontal Termination

• Vertical Termination

A chase is a vertical boxlike structure built

to enclose venting that runs along the out-

sideofabuilding.Achaseisnotrequiredfor

such venting.

Consultlocalbuildingcodesbeforebeginning

the installation. The installer must make sure

to select the proper vent system for installa-

tion. Before installing vent kit, the installer

must read this fireplace manual and vent kit

instructions.

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.

NOTICE: Treatment of firestops

and construction of the chase

may vary from building type to

buildingtype.Theseinstructions

are not substitutes for the re-

quirements of local building

codes. You must follow all local

building codes .

For Horizontal Termination: Select the

amount of vertical rise desired. The horizon-

tal run of venting must have 1/4" rise for

every 12" of run towards the termination.

Only a qualified service person should in-

stall venting system. The installer must fol-

low these safety rules:

• Wear gloves and safety glasses for

protection

WARNING:Neverrunthevent

downward as this may cause ex-

cessive temperatures which

could cause a fire.

Note:Wheninstallinginachase,youshould

insulate the chase as you would the outside

walls of your home. This is especially im-

portant in cold climates. Minimum clear-

ance between vent pipes and combustible

materials such as insulation is 1".

• Use extreme caution when using ladders

or when on roof tops

• Be aware of electrical wiring locations

in walls and ceilings

You may use one or two 90° elbows in this

ventconfiguration. SeeHorizontalTermina-

tion Configurations on pages 10 and 11.

The following actions will void the war-

ranty on your venting system:

For Vertical Termination: Measure the dis-

tance from the fireplace flue outlet to the

ceiling. Add the ceiling thickness, the verti-

cal rise in an attic or second story, and allow

for sufficient vent height above the roofline.

After framing the chase (see Framing and

Finishing on page 4) install the vent system

by following the installation instructions.

• Installation of any damaged venting

component

• Unauthorized modification of the vent-

ing system

Continued

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CHDV34NA, PA

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

Snorkel

VENTING

INSTALLATION

Continued

INSTALLATION FOR

HORIZONTAL TERMINATION

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

easily blocked or obstructed.

12" Minimum

WARNING:Donotrecessvent

terminal into a wall or siding.

Snorkel terminations are available for

terminations requiring a vertical rise on

the exterior of the building (see Figures

9 and 10). Snorkel kit CSVK is also

available (see page 15). Follow the

same installation procedures as used for

standard horizontal terminations. If in-

stalling the snorkel termination below

grade (basement applications), you must

provide proper drainage to prevent wa-

ter from entering the snorkel termina-

tion (see Figure 10). Do not back fill

around the snorkel termination.

Figure 9 - Snorkel Termination

Snorkel

2. Rigid vent pipes and fittings have spe-

cial twist-lock connections. Assemble

the desired combination of pipe and el-

bows 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 fit-

tings. (All connections must be sealed

with high temperature silicone sealant

as specified in the second warning state-

ment on page 7.) Push the pipe sections

together and twist one section clockwise

approximately one-quarter turn until the

sections are fully locked. See Figure 11,

page 9. Note: Horizontal runs of vent

must be supported every three feet. Use

wall straps for this purpose.

12" Minimum

Adequate

Drainage

Flexible vent pipe must be installed with

spacer springs every 12". See Figure 11,

page 9.All connections must be clamped

tightly and sealed with high temperature

silicone sealant as specified in the sec-

ond warning statement on page 7.

Figure 10 - Snorkel Termination with Drainage Pipe

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OWNER’S MANUAL

4. Apply a bead of non-hardening mastic 6. Carefully move the fireplace with vent

VENTING

around the outside edge of the vent cap.

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". Apply silicone

to the outer pipe connection. Fasten all

vent connections with screws provided.

Refer to Fireplace Installation on page

16 for instructions on securing unit to

framing or floor.

INSTALLATION

Position the vent cap in the center of

the 7 /2" or 10" hole on the exterior

Continued

wall with the arrow on the vent cap

pointing up. Insure proper clearance of

1" to combustibles is maintained. At-

tach the vent cap with four wood screws

supplied (see Figure 13). Note: Re-

place the wood screws with appropri-

ate fasteners for stucco, brick, concrete,

or other types of siding.

3. Attach vent pipe assembly to the fire-

place. Set fireplace in front of it’s per-

manent location to insure minimum

clearances. Mark the wall for a 10"

square hole (for noncombustible ma-

terial such as masonry block or con-

crete, a 7 ¹/2" diameter hole is accept-

able). See Figure 12. The center of the

hole should line up with the center-

line of the horizontal rigid vent pipe.

Cut a 10"x10" (254mm x 254mm)

square hole through combustible ex-

7. Slide the wall thimble against the inte-

rior wall surface and attach with screws

provided (see Figure 15).

WARNING:Donotrecessvent

termination in to any wall. This

will cause a fire hazard.

Cut Vinyl Siding

Away to Fit

Standoff

For vinyl siding, stucco, or wood ex-

terior use vinyl siding standoffs be-

tween vent cap and exterior wall. The

vinyl siding standoff prevents exces-

sive heat from melting the vinyl sid-

ing material. Bolt the vent cap to the

standoff. Apply non-hardening mastic

around outside edge of the standoff in-

stead of the vent cap assembly. Use

wood screws provided to attach the

standoff. See Figure 14.

terior wall (7 /2" [190mm] diameter

hole if noncombustible). Frame as nec-

essary (see Figure 12).

Wood Screw

4" Clamp

Female

Locking

Lugs

7" Clamp

Standoff

Spacer

Spring

Nut

4" Flex

Bolt

5. Slide the wall thimble over the vent pipe

before connecting the horizontal run to

the vent cap (see Figure 15).

Male

Pipe

Apply Mastic

to All Four Sides

Slots

7" Flex

Pipe

Vent Cap

Figure14-InstallingVinylSidingStandoff

Interior Wall

Surface

Rigid Vent Pipe Flexible Vent Pipe

Apply Mastic

to All Four

Sides

Figure 11 - Vent Pipe Connections

Wall

Vent Opening

Thimble

Combustible Wall

10"

(254mm)

10"

(254mm)

Wood

Screw

Vent Cap

(Framing

Detail)

Figure 13 - Installing Horizontal Vent Cap

Screw

Vent Opening

Noncombustible Wall

Vent Cap

Horizontal

(Horizontal

Vent Pipe

Termination)

7 ¹/2

(190mm)

Figure 15 - Connecting Vent Cap with

Horizontal Vent Pipe

Figure 12 - Vent Opening Requirements

Continued

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CHDV34NA, PA

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

VENTING

INSTALLATION

Continued

Horizontal Venting

Horizontal Termination

Vertical (V)

44" min.

(30° and 90° only, no vertical pipe)

55" min. 41" max.

(30° elbow, 1' vertical pipe, 90° elbow)

Horizontal (H)

29" max.

Configurations

Figures 16 through 20 show different con-

figurations for venting with horizontal ter-

mination. Each figure includes a chart with

vertical minimum/maximum and horizon-

tal maximum dimensions which must be

met. Seal all connections with high tem-

peraturesiliconesealant(outerpipeonly)as

specified in the second warning statement

on page 7. All horizontal terminations re-

quire 1/4" rise per 12" of horizontal run.

67" min.

79" min.

96" min.

60" max.

84" max.

20' max.

CBVK Vent Kit Shown

Note: This configuration for use with

corner installation.

Figure 17 - Horizontal Termination Configuration for Rigid Venting Using One

90° Elbow

Horizontal Venting

See information in

Figure 17 for

Vertical(V) and

Horizontal(H)

maximums and

CBGFVK Vent Kit

Shown (recommended

for use with cabinet

mantel)

minimums. The

Horizontal Venting

same amounts apply

for flexible venting.

Vertical (V)

37" min.

Horizontal (H)

10" max.

Note: Figure 16

applies to rigid

venting only.

Figure 16 - Horizontal Termination

Configuration for Rigid Venting

Figure 18 - Horizontal Termination Using Flexible Venting

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OWNER’S MANUAL

VENTING

INSTALLATION

Continued

Venting with Two 90° Elbows

Vertical (V)

Horizontal (H₁)

Horizontal (H₁) +

Horizontal (H₂)

5' min.

6' min.

7' min.

8' min.

2' max.

4' max.

6' max.

8' min.

6' max.

12' max.

18' max.

20' max.

8' max.

20' max.

Figure 19 - Horizontal Termination Configuration for Rigid Venting Using Two 90° Elbows

Venting with Two 90° Elbows

Vertical (V)

Horizontal (H₁) +

Horizontal (H₂)

5' min.

6' min.

7' min.

8' min.

6' max.

12' max.

18' max.

20' max.

Figure 20 - Horizontal Termination Configuration for Rigid Venting Using Two 90° Elbows with Termination at 90° with Fireplace

Continued

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CHDV34NA, PA

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

4. Connect a section of pipe and extend

up through the hole.

Flat Ceiling Installation

VENTING

1. Cut a 10" square hole in the ceiling us-

ing the locating hole as a center point.

The opening should be framed to

10"x10" (254mm x 254mm) inside di-

mensions, as shown in Figure 12 on

page 9 using framing lumber the same

size as the ceiling joists. If the area

above the ceiling is an insulated ceil-

ing or a room, nail firestop from the

top side. This prevents loose insulation

from falling into the required clearance

space. Otherwise, install firestop below

the framed hole. The firestop should be

installed with no less than three nails

per side (see Figure 22).

INSTALLATION

Note: If an offset is needed to avoid

obstructions, you must support the vent

pipe every 3 feet. Use wall straps for

this purpose (see Figure 21). Whenever

possible, use 45° elbows instead of 90°

elbows. The 45° elbow offers less re-

striction to the flow of the flue gases

and intake air.

Continued

INSTALLATION FOR

VERTICAL TERMINATION

Note: Vertical restrictors must be installed

in all vertical installations.

1. Determine the route your vertical vent-

ing will take. If ceiling joists, roof

rafters, or other framing will obstruct

the venting system, consider an offset

(see Figure 21) to avoid cutting load

bearing members. Note: Pay special

attention to these installation instruc-

5. Place the flashing over the pipe

section(s) extending through the roof.

Secure the base of the flashing to the

roof and framing with roofing nails. Be

sure roofing material overlaps the top

edge of the flashing as shown in Figure

21. There must be a 1" clearance from

the vent pipe to combustible materials.

tions for required clearances (air space) 2. Assemble the desired lengths of pipe

to combustibles when passing through

ceilings, walls, roofs, enclosures, attic

rafters, etc. Do not pack air spaces with

insulation. Also note maximum verti-

cal rise of the venting system and any

maximum horizontal offset limitations.

Offsets must fall within the parameters

shown in Figure 8 on page 6.

and elbows necessary to reach from the

fireplace flue up through the firestop.

All connections must be sealed with

high temperature silicone sealant as

specified in the second warning state-

ment on page 7. Be sure all pipe and

elbow connections are fully twist-

locked (see Figure 11, page 9).

6. Continue to add pipe sections until the

height of the vent cap meets the mini-

mum building code requirements de-

scribed in Figure 8 on page 6. Note:You

must increase vent height for steep roof

pitches. Nearby trees, adjoining rooflines,

steep pitched roofs, and other similar fac-

tors may cause poor draft or down-draft-

ing in high winds. Increasing the vent

height may solve this problem.

2. Set the fireplace in desired location. 3. Cut a hole in the roof using the locating

Drop a plumb line down from the ceil-

ing to the position of the fireplace exit

flue. Mark the center point where the

vent will penetrate the ceiling. Drill a

small locating hole at this point.

hole as a center point. (Cover any ex-

posed open vent pipes before cutting

hole in roof.) The 10"x10" hole must

be measured on the horizontal; actual

length may be larger depending on the

pitch of the roof. There must be a 1"

clearance from the vent pipe to combus-

tible materials. Frame the opening as

shown in Figure 12, page 9.

7. Twist-lock the vent cap onto the last

section of vent pipe and seal outer pipe

connection with high temperature sili-

cone sealant as specified in the second

warning statement on page 7.

Note: If the vent pipe passes through any

occupied areas above the first floor, including

storage spaces and closets, you must enclose

pipe. Youmayframeandsheetrocktheenclo-

surewithstandardconstructionmaterial.Make

sure and meet the minimum allowable clear-

ances to combustibles. Do not fill any of the

required air spaces with insulation.

Drop a plumb line from the inside of

the roof to the locating hole in the ceil-

ing. Mark the center point where the

vent will penetrate the roof. Drill a

small locating hole at this point.

If area above is a room, install firestop

above framed hole.

Roof Flashing

Cathedral Ceiling Installation

Wall Strap

1. Remove shingles or other roof cover-

ing as necessary to cut the rectangular

hole for the support box. Mark the out-

line of the cathedral ceiling support box

on the roof sheathing using the locat-

ing hole as a center point.

If area above is not a room, install

firestop below framed hole.

45° Elbow

2. Cut the hole 1/8" larger than the sup-

port box outline (see Figure 23, page 13).

Ceiling Firestop

Figure 21 - Offset with Wall Strap and

45° Elbows

Figure 22 - Installing Firestop

105983

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OWNER’S MANUAL

Vertical Termination Configurations

VENTING

Figures 25 through 28 show four different configurations for vertical termination. All

connectionsmustbesealedwithhightemperaturesiliconesealantasspecifiedinthesecond

warning statement on page 7.

INSTALLATION

Continued

3. Lower the support box through the hole

in the roof until the bottom of the box

extends at least 2" below the ceiling

(see Figure 23). Align the support box

vertically and horizontally using a

level. Temporarily tack the support box

in place through the inside walls and

into the roof sheathing.

Venting with Two 90° Elbows

Vertical (V)

Horizontal (H₁) +

Horizontal (H₂)

5' min.

6' min.

7' min.

8' min.

2' max.

4' max.

6' max.

8' max.

4. Using tin snips, cut the support box from

the top corners down to the roofline and

fold the resulting flaps over the roof

sheathing (see Figure 24). Apply a bead

of non-hardening mastic around the top

edges of the support box to make a seal

between the box and the roof. Nail in

place with roofing nails. Remove any

combustible material that might be in-

side of the support box.

20' max.

8' max.

Note: Install restrictor

into 4" collar of stove

as shown.

5. Complete the cathedral ceiling instal-

lation by following the same proce-

dures outlined in steps 2 through 7 for

Flat Ceiling Installation, page 12.

Level

Cathedral ceiling

support box

Figure 25 - Vertical Rigid Venting Configuration Using Two 90° Elbows with Two

Horizontal Runs

2" minimum below

finished ceiling

Note: Install restrictor

into 4" collar of stove

Venting with One 90° Elbow

as shown.

Vertical (V)

Horizontal (H)

Cut hole 1/8" larger than support

box when projected onto roofline

5' min.

6' min.

7' min.

8' min.

2' max.

4' max.

6' max.

8' max.

Figure 23 - Cathedral Ceiling Support

Box Installation

20' max.

8' max.

Non-hardening Mastic under all

edges of support box before nailing

Figure 24 - Installed Cathedral Ceiling

Support Box

Figure 26 - Vertical Rigid Venting Configuration Using One 90° Elbow

Continued

105983

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CHDV34NA, PA

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

HIGH ALTITUDE

INSTALLATION

VENTING

INSTALLATION

Your Comfort Glow direct-vent fireplace

Continued

has been AGA tested and approved for

elevations from 0-2000 feet and CGA certi-

fied for elevations from 0-4500 feet.

When installing this fireplace at an elevation

above 2000 feet (in the USA), you may need

to decrease the input rating by changing the

existing burner orifice to a smaller size. Re-

duce input 4% for each 1000 feet above sea

level.Checkwithyour localgascompanyfor

proper orifice size identification.

When installing this fireplace at an eleva-

tion above 4500 feet (in Canada), check

with local authorities.

Note: Install

Consult your local gas company to help de-

termine the proper orifice for your location.

restrictor into

4" collar of

stove as

For assistance with any high altitude instal-

lation contact DESA International’s Tech-

nical Services Department at 1-800-DESA-

LOG (1-800-337-2564).

shown.

Note: Install

restrictor into

4" collar of

stove as

shown.

PARTS LISTS FOR VENTING

KITS AND COMPONENTS

Comfort Glow Rigid Venting

Number Description

CBGFVK Basic Ground Floor Rigid

Vent Kit

Includes: 7" x 60° Elbow,

Extended Adjustable Horizon-

tal Termination, Wall Thimble

and 14 Screws

Venting with Two 90° Elbows

Vertical (V₁)

Horizontal (H)

5' min.

6' min.

7' min.

8' min.

6' max.

12' max.

18' max.

20' max.

CCVK

CBVK

Corner Vent Kit

Includes:7"x30°Elbow,7"x90°

Elbow, 7"AdjustableGalvanized

Pipe (7"-12"), Wall Thimble,

Horizontal Termination, 6" Pipe,

RTV Silicone and 20 Screws

CRVF Kit Shown

Vertical Venting

V = 40' max.

Note: Vertical (V₁) + Vertical (V₂) = 20'

max.

Basement Rigid Vent Kit

Figure 28 - Vertical Rigid Venting

Configuration With No Horizontal Run

Figure 27 - Vertical Rigid Venting

Configuration Using Two 90° Elbows

Includes: 7" x 30° Elbow, 7" x 4'

Galvanized Pipe, 7" x 90° El-

bow, 7" Adjustable Galvanized

Pipe (7-12"), Wall Thimble,

Horizontal Termination, RTV

Silicone and 20 Screws

CBVKA Basement Rigid Vent Kit

Includes: 7" x 30° Elbow, 7" x 4'

GalvanizedPipe,7"x90°Elbow,7"

AdjustableGalvanizedPipe(7-12"),

RTV Silicone and 20 Screws

105983

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OWNER’S MANUAL

Comfort Glow Flexible Venting

Number Description

Simpson Dura-Vent GS 4" x 6 ⁵/8

Number Description

VENTING

INSTALLATION

CBFGFVK BasicFlexGroundFloorVentKit

Includes: Flex Adapter, 7" x 2'

Flexible Pipe, 4" x 2' Flexible

Pipe, Wall Thimble, Horizontal

Termination,(2)SpacerSprings,

(2) 4" Hose Clamps, (2) 7" Hose

Clamps, and 10 Screws

CFGFVK Flex Ground Floor Vent Kit

Includes: Flex Adapter, 7" x 4'

Flexible Pipe, 4" x 4' Flexible

Pipe, Wall Thimble, Horizontal

Termination,(4)SpacerSprings,

(2) 4" Hose Clamps, (2) 7" Hose

Clamps, RTV Silicone, and

10 Screws

Available from Simpson

Dura-Vent Only (Cont.)

Continued

981

36" Snorkel Termination

Comfort Glow Rigid Venting (Cont.)

Number Description

984 Horizontal Termination Vent Cap

988 Wall Strap

CSVK

CRVF

Snorkel Rigid Vent Kit

990 7" x 90° Elbow

Includes: 7" x 30° Elbow, 7" x 4'

GalvanizedPipe,7"x90°Elbow,7"

AdjustableGalvanizedPipe(7-12"),

Wall Thimble, 36" Snorkel Termi-

nation,RTVSiliconeand28Screws

991 Vertical High Wind Termination

Roof Rigid Vent Kit

Includes: Flue Restrictor, Storm

Collar, 7" x 30° Elbow, 7" x 4'

GalvanizedPipe, 7"x2'Galvanized

Pipe,7"AdjustableGalvanizedPipe

(7-12"), Firestop Support, Roof

Flashing, RTV Silicone, Vertical

Termination, and 26 screws.

CD1040 7" x 25' Coaxial Flex Pipe with

Spacer Springs

CD3080 Rectangular Horizontal Flex

Termination Cap

CD1000 7" x 12" Galvanized Coaxial

Pipe (Qty 1)

CD4020 Flex Connector (Qty 1)

CD4030 Flex Wall Thimble (Qty 1)

CD4040 4" Hose Clamp (Qty 1)

CD4050 7" Hose Clamp (Qty 1)

CD1010 7" x 24" Galvanized Coaxial

Pipe (Qty 1)

CD1020 7" x 48" Galvanized Coaxial

Pipe (Qty 1)

Simpson Dura-Vent GS 4" x 6 ⁵/8

Number Description

CD1030 7"Adjustable(7-12")Galvanized

Coaxial Pipe (Qty 1)

Available from DESA International:

CD1050 7" x 6" Galvanized Coaxial Pipe

(Qty 1)

CSD2040 Simpson Dura-Vent GS

30° Elbow (6 pcs.)

CD2000 7" x 90° Elbow (Qty 1)

CD2010 7" x 45° Elbow (Qty 1)

CD2020 7" x 30° Elbow (Qty 1)

CD2030 7" x 60° Elbow (Qty 1)

CD3000 Wall Strap/Offset Support (Qty 1)

CD3010 Storm Collar (Qty 1)

CSD2050 Simpson Dura-Vent GS

60° Elbow (6 pcs.)

Available from Simpson

Dura-Vent Only:

902 7" x 48" Pipe

903 7" x 36" Pipe

CD3020 Wall Thimble (Qty 1)

904 7" x 24" Pipe

CD3040 Vertical Termination Cap (Qty 1)

CD3050 Vertical Restrictor (Qty 1)

CD3060 Ceiling Firestop/Support (Qty1)

906 7" x 12" Pipe

907 7" x 9" Pipe

908 7" x 6" Pipe

911 7" Adjustable (11"-14 ⁵/8") Pipe

CD3070 Rectangular Horizontal Rigid

Vent Termination Cap

940 Wall Thimble

CD3090 Cathedral Ceiling Support Box

CD4000 Roof Flashing 6/12-9/12

CD4010 Roof Flashing 9/12-12/12

941 Cathedral Ceiling Support Box

943 Roof Flashing 0/12-6/12

943S Roof Flashing 7/12-12/12

945 7" x 45° Elbow

CD5000 Wood/Vinyl Siding Standoff

(Qty 1)

950 Vinyl Siding Standoff

953 Storm Collar

963 Ceiling Firestop

105983

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CHDV34NA, PA

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

Installing GA3750/CDA3620T

Blowers

CHECK GAS TYPE

FIREPLACE

Use proper gas type for the fireplace unit

you are installing. If you have conflicting

gas types, do not install fireplace. See re-

tailer where you purchased the fireplace for

proper fireplace according to your gas type.

INSTALLATION

IMPORTANT:Forclarity, gasvalveassem-

bly and grate/burner assembly are not shown

in Figures 30 through 33, page 17. They will,

however, be in your fireplace when you are

installing the blower. Also for clarity the

firebox is shown with dotted lines.

NOTICE: This fireplace is in-

tended for use as supplemental

heat.Usethisfireplacealongwith

your primary heating system. Do

not install this fireplace as your

primary heat source. If you have

acentralheatingsystem,youmay

run system's circulating blower

while using fireplace. This will

help circulate the heat through-

out the house. In the event of a

power outage, you can use this

fireplace as a heat source.

INSTALLING OPTIONAL

BLOWER ACCESSORY

1. Open lower louver panel or remove for

easier access.

NOTICE: If installing blower in an

existing fireplace with gas con-

nections,shutoffgassupplyand

disconnect heater from gas sup-

ply. Contact a qualified service

person to do this.

2. Place the blower against the lower rear

wall of firebox outer wrapper with the

exhaust port directed upward.Align the

holes in the top mounting tabs of

blower with holes in wall of wrapper

(see Figure 30, page 17). Using the two

screws provided, mount blower and

tighten screws securely.

Attaching Thermal Switch to

CDA3620T Thermostatically-

Controlled Blower

WARNING: A qualified ser-

vicepersonmustinstallfireplace.

Follow all local codes.

Note: For CDA3620T, make sure the

thermal switch is comfortably between

the back of the firebox and the blower

as shown in Figure 31, page 17.

When installing the CDA3620T thermo-

statically-controlled blower accessory, you

must first secure the thermal switch to the

blower.

3. Be sure to securely attach all wire ter-

minals to terminals on blower motor

(and thermal switch where applicable)

and that the screw retaining the green

ground wire is tight.

CAUTION: This fireplace cre-

ateswarmaircurrents.Thesecur-

rents move heat to wall surfaces

next to fireplace. Installing fire-

place next to vinyl or cloth wall

coverings or operating fireplace

where impurities (such as to-

bacco smoke, aromatic candles,

cleaning fluids, oil or kerosene

lamps, etc.) in the air exist, may

discolor walls.

1. Remove the two hex head screws on the

blower assembly as shown in Figure 29.

2. Place the green wire between the bot-

tom hole on the thermal switch bracket

and the bottom hole on the blower as-

sembly. Insert one of the hex screws

into all three pieces and tighten.

4. Remove screws securing the switch

plate to the bottom of the firebox and

set aside.

5. Place speed control against back of this

plate and push the plastic control shaft

through opening (see Figure 32, page 17).

3. Insert the top screw through the ther-

mal switch bracket and into the blower

assembly. Tighten screw.

6. Whilesupportingspeedcontrol,securecon-

trolshaftwithlocknutbypushingandturn-

inglocknutwithpliersclockwiseuntiltight

against the plate. Place control knob pro-

vided onto shaft (see Figure 32, page 17).

Note: Your fireplace is designed to be used

inzeroclearanceinstallations.Wallorfram-

ing material can be placed directly against

any exterior surface on the rear, sides, or top

of your fireplace, except where standoff

spacers are integrally attached. If standoff

spacers are attached to your fireplace, these

spacers can be placed directly against wall

or framing material. See framing details on

page 4.

4. Connect the blue wire on the blower

assembly to the right side of the ther-

mal switch.

5. Connect the black wire to the left side

of the thermal switch.

7. Replace plate containing the switch and

tighten screws securely.

White Wire

Thermal Switch

with Bracket

Blower Assembly

Place the fireplace into position and shim

with noncombustible material if needed.

Nailthesideflangestotheframingtosecure

the unit in place. There are two floor brack-

ets included with each unit. Use these as an

alternativemethodofsecuringthefireplace.

Black Wire

Green Wire

Blue Wire

Hex Head

Screws

IMPORTANT: Make sure fireplace is level

before securing. If fireplace is not level it

will not work properly.

Figure29-AttachingThermalSwitchtoCDA3620TThermostatically-Controlled

Blower Accessory

105983

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OWNER’S MANUAL

9. Check to make sure that the power cord

FIREPLACE

WARNING: Failure to position

the parts in accordance with sup-

plied diagrams or failure to use

only parts specifically approved

withthisheatermayresultindam-

age or personal injury.

is completely clear of the blower wheel

and that there are no other foreign ob-

jects in blower wheel. Turn blower on

and check for operation. Turn blower

off by rotating knob fully counterclock-

wise before continuing.

INSTALLATION

Continued

8. Plug in blower power cord.

a. If your fireplace system is installed

as a freestanding unit with an ac-

cessory mantel, determine whether

the power cord will exit the left side

or the right side of the firebox. In-

stall one plastic bushing provided

into the 1 ¹/2" hole in the outer cas-

ing through which the power cord

will exit. Install the second plastic

bushing provided into the floor sup-

port bracket if exiting through the

right side (see Figure 33). Route

power cord through (both) plastic

bushing(s) and plug the power cord

into a properly grounded 3-prong

wall receptacle near the firebox.

b. If your fireplace system installation

is recessed and/or pre-wired, a

qualified installer must make all elec-

trical connections for the outlet kit

included with the fireplace.

11. Connect or reconnect gas supply to fire-

place per Connecting Fireplace to Gas

Supply on page 19 of this manual.

WARNING: Never touch the

blower wheel while in operation.

10. Peel off the backing paper and stick the

supplied wiring diagram decal on the

firebox bottom approximately 3" to the

right of the blower speed control

bracket (Figure 33).

WARNING: A qualified ser-

vice person must connect fire-

place to gas supply. Follow all

local codes.

Firebox Bottom

Firebox Back

Firebox Flange

Blower

Thermal

Switch

Thermal

Switch

Bracket

Thermal Switch

Side View

Figure 31 - Locating Thermal Switch Against Back of Firebox

Lower Rear

Wall of

Firebox

Wrapper

Speed

Control

Knob

Control Shaft

Locknut

Lower Louver

Blower

Panel

Screws

Figure 32 - Attaching Speed Control to

Firebox

Exhaust Port

Top

Mounting

Tab

Wiring

Diagram

Blower Speed

Control Bracket

Plastic Bushing

Figure 33 - Installing Plastic Bushing and

Wiring Diagram Sticker

Figure 30 - Mounting Blower to Firebox

Continued

105983

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CHDV34NA, PA

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

IMPORTANT: Install main gas valve

FIREPLACE

CAUTION: Use only new,

black iron or steel pipe. Inter-

nally-tinned copper tubing may

be used in certain areas. Check

yourlocalcodes. Usepipeof1/2"

diameter or greater to allow

proper gas volume to fireplace. If

pipe is too small, undue loss of

pressure will occur.

(manual shutoff valve) in an accessible lo-

cation. The main gas valve is for turning on

or shutting off the gas to the appliance.

INSTALLATION

Continued

Check your building codes for any special

requirements for locating manual shutoff

valve to fireplaces.

INSTALLING GAS PIPING TO

FIREPLACE LOCATION

Apply pipe joint sealant lightly to male

threads. This will prevent excess sealant

from going into pipe. Excess sealant in pipe

could result in clogged fireplace valves.

WARNING: A qualified ser-

vice person must connect fire-

place to gas supply. Follow all

local codes.

Installation must include a manual shutoff

valve, union, and plugged 1/8" NPT tap.

Locate NPT tap within reach for test gauge

hook up. NPT tap must be upstream from

fireplace (see Figure 35).

CAUTION:Usepipejointseal-

ant that is resistant to liquid pe-

troleum (LP) gas.

CAUTION: For propane/LP

units, never connect heater di-

rectly to the propane/LP supply.

This heater requires an external

regulator(notsupplied).Installthe

external regulator between the

heater and propane/LP supply.

Propane/LP

Supply Tank

We recommend that you install a sediment

trap/drip leg in supply line as shown in

Figure 35. Locate sediment trap/drip leg

where it is within reach for cleaning. Install

in piping system between fuel supply and

heater. Locate sediment trap/drip leg where

trapped matter is not likely to freeze. A

sediment trap traps moisture and contami-

nants. This keeps them from going into

fireplace gas controls. If sediment trap/drip

leg is not installed or is installed wrong,

fireplace may not run properly.

External

Regulator

Installation Items Needed

Before installing fireplace, make sure you

have the items listed below.

• external regulator (supplied by installer)

• piping (check local codes)

• sealant (resistant to propane/LP gas)

• manual shutoff valve *

• test gauge connection *

• sediment trap

Vent

Pointing

Down

Figure 34 - External Regulator with Vent

Pointing Down (Propane/LP Only)

• tee joint

A.G.A. Design-Certified

Manual Shutoff Valve with

1/8" NPT Tap*

• pipe wrench

• approved flexible gas line with gas con-

nector (if allowed by local codes) (not

provided)

* AnA.G.A.design-certifiedmanualshutoff

valve with 1/8" NPT tap is an acceptable

alternative to test gauge connection. Pur-

chase the A.G.A. design-certified manual

shutoff valve from your retailer.

Approved Flexible

Gas Line

Natural - From Gas

Meter (5" W.C. to 10.5"

W.C. Pressure )

For propane/LP connection only, the in-

staller must supply an external regulator.

Theexternalregulatorwillreduceincoming

gas pressure. You must reduce incoming

gas pressure to between 11 and 14 inches of

water. If you do not reduce incoming gas

pressure, heater regulator damage could

occur. Install external regulator with the

vent pointing down as shown in Figure 34.

Pointing the vent down protects it from

freezing rain or sleet.

Propane/LP - From External

Regulator (11" W.C. to 14"

W.C. Pressure)

3" Minimum

Cap Pipe Nipple Tee Joint

Sediment Trap/Drip Leg

Figure 35 - Gas Connection

* The A.G.A. design-certified manual shutoff valve may be supplied with the appliance

or you can purchase it from your retailer.

105983

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OWNER’S MANUAL

3. Pressurize supply piping system by ei-

ther opening propane/LP supply tank

valve for propane/LP gas fireplace or

opening main gas valve located on or near

CHECKING GAS

CONNECTIONS

FIREPLACE

INSTALLATION

Continued

WARNING: Test all gas pip-

gas meter for natural gas fireplace, or

using compressed air.

ing and connections for leaks

after installing or servicing. Cor-

rect all leaks at once.

CONNECTING FIREPLACE

TO GAS SUPPLY

4. Check all joints of gas supply piping

system. Apply commercial leak test

solution to all gas joints. Bubbles form-

ing show a leak. Correct all leaks at

once.

5. Reconnect fireplace and manual shutoff

valve to gas supply. Check reconnected

fittings for leaks.

Installation Items Needed

WARNING:Neveruseanopen

flame to check for a leak. Apply

commercial leak test solution to

all gas joints. Bubbles forming

show a leak. Correct all leaks at

once.

• 5/16" hex socket wrench or nut-driver

• sealant (resistant to propane/LP gas, not

provided)

1. Open lower louver door panel by gen-

tly pulling forward.

2. Route flexible gas line (provided by

installer) from manual shutoff valve to

fireplace. Route flexible gas supply line

through one of the access holes on side

of fireplace.

Pressure Testing Gas Supply

Piping System

Test Pressures In Excess Of 1/2 PSIG

(3.5 kPa)

3. Attach flexible gas line from gas sup-

ply to control valve (see Figure 36).

1. Disconnect fireplace and its individual

manual shutoff valve from gas supply

piping system. Pressures in excess of 1/2

psig (3.5 kPa) will damage fireplace gas

regulator.

4. Check all gas connections for leaks. See

Checking Gas Connections.

2. Cap off open end of gas pipe where

manual shutoff valve was connected.

Manual Shutoff Valve

To Gas Supply

(Natural)

To External Regulator

(Propane/LP)

Control Valve

Flexible Gas Line from

Manual Shutoff Valve

Provided by Installer

Figure 36 - Attaching Flexible Gas Line to Control Valve

Continued

105983

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CHDV34NA, PA

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

Open

POSITION

FIREPLACE

Manual

Shutoff

Valve

INSTALLATION

Continued

Test Pressures Equal To or Less Than

1/2 PSIG (3.5 kPa)

OFF

POSITION

Closed

1. Close manual shutoff valve (see Fig-

Figure 37 - Manual Shutoff Valve

ure 37).

2. Pressurize supply piping system by ei-

ther opening propane/LP supply tank

valve for propane/LP gas fireplace or

opening main gas valve located on or near

gas meter for natural gas fireplace, or

using compressed air.

Propane/LP Supply

Tank

3. Check all joints from propane/LP sup-

Manual

ply tank or gas meter to manual shutoff

valve (see Figure 38 for propane/LP or

Figure 39 for natural). Apply commer-

cial leak test solution to all gas joints.

Bubbles forming show a leak. Correct

all leaks at once.

Shutoff Valve

Pressure Testing Fireplace Gas

Connections

Gas Valve

Figure 38 - Checking Gas Joints for Propane/LP Gas Fireplace

1. Open manual shutoff valve (see Fig-

ure 37).

2. Open propane/LP supply tank valve for

propane/LPfireplace or main gas valve

located on or near gas meter for natu-

ral gas fireplace.

3. Make sure control knob of fireplace is

in the OFF position.

Manual

Shutoff Valve

Gas Meter

4. Check all joints from manual shutoff

valve to thermostat gas valve (see Fig-

ure 38 for propane/LP or Figure 39 for

natural).Apply commercial leak test so-

lution to all gas joints. Bubbles forming

show a leak. Correct all leaks at once.

5. Light fireplace (see Operating Fire-

place, pages 24 through 26). Check all

other internal joints for leaks.

Gas Valve

6. Turn off fireplace (see To Turn Off Gas

to Appliance, page 24).

Figure 39 - Checking Gas Joints for Natural Gas Fireplace

105983

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OWNER’S MANUAL

1. Remove the upper louver panel by lift-

ing upward and out (see Figure 44).

FIREPLACE

Receiver

INSTALLATION

2. Remove the screws from the three tabs

at the top of the glass door while hold-

Continued

ing door securely keeping it from fall-

ing forward.

Terminal

Wires

Battery Clip

INSTALLING OPTIONAL

WIRELESS HAND-HELD

REMOTE CONTROL - CGHRC

SERIES/CGHRCT SERIES

3. Grasp door by both sides and ease it

upward off of the lower bracket (see

Figure 45).

9-Volt Alkaline

Battery

4. To replace glass door, follow the above

instructions in reverse.

Figure 42 - Attaching Alkaline Battery to

Receiver

NOTICE: Use only alkaline bat-

teries (not included).

Installing 9-Volt Alkaline Battery

in Hand-Held Remote Control

Unit

1. Remove battery cover on back of re-

mote control unit.

Attaching Magnetic Decorative

Brass Strips

(Optional Installation)

Installing Remote Receiver

1. Open bottom louver and locate the

switch bracket on the left.

Before attaching strips to fireplace, remove

plastic film from brass pieces. After install-

ing door, attach these strips to the top and

bottom of glass door frame.

2. Unscrew the switch bracket. Lean

bracket forward so you are able to ac-

cess the back of the remote receiver.

2. Attach terminal wires to a 9-volt alka-

line battery (not included). Place bat-

tery into the battery housing.

3. Locate the battery clip mounted on the

back of the receiver. Slide a 9-volt al-

kaline battery (not included) through

the clip.

3. Replace battery cover onto remote con-

trol unit.

Top Louver

Panel

Battery

Cover

4. Attach the terminal wires to the battery.

5. Remove wire from TH to TPTH on

control valve (see Figure 40).

Terminal

Wires

Remote

Control Unit

9-Volt

6. Connect wires from receiver to TH and

TPTH to control valve (see Figure 41).

Alkaline

Battery

7. Replace the switch bracket.

Battery

Housing

Figure 44 - Removing Top Louver Panel

Figure 43 - Installing Alkaline Battery in

Hand-Held Remote Control Unit

Screw

REMOVING/REPLACING

GLASS DOOR

Figure 40 - Disconnecting TH to TPTH

Wire

You must remove glass door to install op-

tional brick liners, logs, lava rock, and em-

ber material.

Glass

Door

Assembly

Optional

Remote

Accessory

CAUTION:Donotoperatethis

fireplacewithabrokenglassdoor

panel or without the glass door

panel securely in place. For re-

placement part information see

Replacement Parts, page 31.

Lower Bracket for

Glass Door Assembly

Figure 41 - Control Valve Terminals

Figure45-Removing/ReplacingGlassDoor

Continued

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CHDV34NA, PA

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

FIREPLACE

INSTALLATION

Continued

INSTALLING OPTIONAL

Rear Brick Panel

BRICK LINER CD8037A

WARNING: If fireplace has

been running, turn off and un-

plug fireplace. Let cool before

installing brick liner.

This brick liner kit is optional. You may

purchase brick liner from your local retailer

or see Accessories, page 34.

CAUTION: Always handle

brick panels with two hands. Do

Retaining Brackets

not force brick panels into place.

Excessive force will break brick

Figure 46 - Installing Rear Brick Panel and Retainer Brackets

panels.

1. Remove glass door. See Removing/Re-

placing Glass Door, page 21.

2. If installing brick liner in new fireplace,

go to step 3. If installing brick liner in

an existing fireplace, carefully remove

logs, lava rock, and ember material.

Left Side

Brick Panel

3. Install rear brick panel first. Rest bot-

tom edge of panel on back edge of grate

(see Figure 46).

4. Loosely secure retainer brackets to

grate. Brackets are adjustable left to

right to allow proper placement of

panel. These will hold rear panel in

place while installing side panels.

5. Install left side brick panel by sliding

it between the grate and the side of the

firebox (see Figure 47).

Retainer

Brackets

6. Slide the left retainer bracket against

the left side brick panel. Tighten the

bracket screw. This secures both the left

side and rear brick panels.

Figure47-InstallingLeftSideBrickPanel

7. Install the right brick panel using the

same method described in step 5.

8. Slide the right retainer bracket against

the right side brick panel. Tighten the

bracket screw. This secures both the

right side and rear brick panels.

9. Follow instructions on page 23 to install

logs, lava rock, and ember material.

10. Replace glass door (see page 21).

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OWNER’S MANUAL

6. Pull ember material apart into pieces

FIREPLACE

no larger than a dime. Place these

pieces loosely and sparingly directly

onto the exposed section of the front

burner and along the space between the

burner and grate prongs (see Figure 52).

This will create the glowing ember ap-

pearance as the flame touches the em-

ber material. Do not block air slots by

using too much ember material in one

area. It is not necessary to use all of the

ember material provided.

INSTALLATION

Continued

INSTALLING LOGS, LAVA

ROCK AND GLOWING

EMBERS

WARNING: Failure to position

thepartsinaccordancewiththese

diagrams or failure to use only

parts specifically approved with

this heater may result in property

damage or personal injury.

7. Replace the glass door. See Removing/

Replacing Glass Door, page 21.

Figure 50 - Installing Log No. 3

WARNING: The glass door

must be securely in place before

running this fireplace. Do not run

this fireplace if glass is missing

or broken.

Each log is marked with a number. These

numberswillhelpyouidentifythelogwhen

installing. It is very important to install

these logs exactly as instructed. Do not

modify logs. Only use logs supplied with

fireplace.

Removeglassdoor. SeeRemoving/Replacing

Glass Door, page 21. Install logs according to

the following instructions.

1. Place log #1 (back log) on top of grate.

Make sure the notches in the bottom of

the log fit over the grate (see Figure 48).

2. Rest log #2 (large front log) on the pins on

the front part of the grate (see Figure 49).

Figure 51 - Installing Log No. 4

3. Place log #3 (left log) onto the rear and

front logs. Make sure it is seated prop-

erly into the notch on the front log and

over the raised triangular portion of the

rear log as shown in Figure 50.

Figure 48 - Installing Log No. 1

4. Place log #4 (right log) onto the front

left part of the grate making sure the

notches fits over the prong of the grate

(see Figure 51).

5. Place lava rock along sides and front

of firebox bottom in areas that are vis-

ible only. It is not necessary to use all

of the lava rock provided.

Ember Material

Figure 52 - Placing Ember Material on

Burner

NOTICE: Do not put lava rock on

burner or under burner. Placing

lava rock on burner could cause

performance problems.

Figure 49 - Installing Log No. 2

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CHDV34NA, PA

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

10. Reconnect the wire that runs from

OPERATING

LIGHTING

TH to TPTH to the control valve.

11. Turn on all electric power to the

INSTRUCTIONS

FIREPLACE

fireplace.

1. STOP! Read the safety information

FOR YOUR SAFETY

12. Turn gas control knob counterclock-

in column one.

READ BEFORE

LIGHTING

wise

to “ON”.

2. Open lower louver panel.

3. Disconnect the wire that runs from

TH to TPTH from the control valve.

13. This valve is equipped with a HI/LO

feature. Set fireplace input as desired.

14. Close lower louver panel.

WARNING: If you do not fol-

low these instructions exactly, a

fireorexplosionmayresultcaus-

ing property damage, personal

injury or loss of life.

4. Turn off all electric power to the

fireplace.

5. Push in gas control knob slightly and

TO TURN OFF GAS

TO APPLIANCE

1. Open lower louver panel.

2a. Disconnect wire that runs from TH

to TPTH.

2b. Set selector switch in the OFF position

to prevent draining battery.

3. Turn off all electrical power to the

appliance if service is to be performed.

4. Push in gas control knob slightly and

turn clockwise

to “OFF”.

6. Wait five (5) minutes to clear out any

gas. Then smell for gas, including

near the floor. If you smell gas,

STOP! Follow “B” in the safety in-

formation in column one. If you don't

smell gas, go to the next step.

7. The pilot is located by the main

burner and should not require ac-

cessing for lighting.

A. This appliance has a pilot which must

be lighted by hand. When lighting the

pilot, follow these instructions exactly.

B. BEFORE LIGHTING smell all

around the appliance area for gas. Be

sure to smell next to the floor because

some gas is heavier than air and will

settle on the floor.

turn clockwise

to “OFF”.

5. Close lower louver panel.

8. Turn gas control knob counterclock-

wise

to “PILOT”.

WHATTO DO IFYOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electric 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.

Shutting Off Burners Only (pilot

stays lit)

9. Push in gas control knob all the way

and hold. Immediately light the pi-

lot by repeatedly depressing the piezo

spark ignitor until a flame appears.

Continue to hold for about one (1)

minute after the pilot is lit. Release

gas control knob and it will pop back.

Pilot should remain lit. If it goes out,

repeat steps 5 through 8.

You may shut off the burners and keep

the pilot lit by doing one of the following:

1. Turn gas control knob clockwise

to the PILOT position.

C. Use only your hand to push in or turn

the gas control knob. Never use tools.

If the knob will not push in or turn

by hand, don't try to repair it, call a

qualified service technician. Force or

attempted repair may result in a fire

or explosion.

2. Set selector switch in the OFF position.

• If gas control knob does not pop

up when released, stop and

immediately call your service

technician or gas supplier.

• If the pilot will not stay lit after sev-

eral tries, turn the gas control knob

to “OFF” and call your service

technician or gas supplier.

MANUAL LIGHTING

PROCEDURE

1. Remove glass door (see Removing/

Replacing Glass Door, page 21).

D. Do not use this appliance if any part

has been under water. Immediately call

a qualified service technician to inspect

the appliance and to replace any part

of the control system and any gas con-

trol which has been under water.

2. Follow steps 1 through 8 under Light-

ing Instructions.

3. Depress gas control knob and light

pilot with match.

Variable Control Knob

Gas Control Knob

4. Keep gas control knob pressed in for

30 seconds after lighting pilot. After

30 seconds, release gas control knob.

Follow steps 10 through 14 under

Lighting Instructions.

Piezo

Ignitor

Figure 53 - Control Valve

5. Replace glass door (see Removing/

Replacing Glass Door, page 21).

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OWNER’S MANUAL

IMPORTANT:This remote control

has been specially engineered to

take an air temperature sample ev-

ery 5.5 minutes in the auto mode.

It will not respond immediately to

the temperature setting being

turned up or down.

IMPORTANT: The hand-held re-

mote control unit must be near the

heater. Do not keep the hand-held

remote control unit too close to the

heater. The thermostat on the

hand-held remote control unit will

heat up too quickly and turn the

heater off.

CGHRC Series Operation:

OPERATING

2a. Press the ON/OFF button to turn the

burners on and off. When turning

burners off, the pilot will remain lit.

FIREPLACE

Continued

CGHRCT Series Operation:

OPTIONAL REMOTE

OPERATION

2b. Select the MAN (manual) or AUTO

button on the hand-held remote con-

trol unit (see Figure 55).

Note:Allremotecontrolaccessoriesmust

be purchased separately (see Accessories,

page 36). Follow instructions included

with the remote control.

• In manual mode, turn burners on

or off by pressing the ON or OFF

buttons on the hand-held remote

control unit.

• In auto mode, the room tempera-

ture is controlled by the thermo-

stat in the hand-held remote con-

trol unit. To increase the room tem-

perature, press the top arrow of the

TEMP button. To lower the room

temperature, press the bottom ar-

row of theTEMP button.At higher

settings the heater will run more.

Thermostat Control Operation

(Optional CGHRCT Only) The thermo-

stat control setting on the remote control

unit can be set to any comfort level be-

tween HI and LO. The burners will turn

on and off automatically to maintain the

comfort level you select. The ideal com-

fort setting will vary by household de-

pending upon the amount of space to be

heated, the output of the central heating

system, etc.

3. Use the STATUS button on the hand-

held remote control unit to see the

operation mode being used and the

temperature setting selected. A red

light will come on beside the opera-

tion mode being used when the sta-

tus button is pressed.

4. To turn the burners off when operat-

ing in the manual mode, press the OFF

button. If operating in the auto mode,

press the MAN button, then press the

OFF button. The pilot will remain lit.

IMPORTANT: To turn the pilot off,

manually turn the gas control knob on

the heater to the OFF position.

Blower Control Knob

(Optional Accessory)

Variable

Control Knob

NOTICE: You must light the pilot

before using the hand-held re-

mote control unit. See Lighting

Instructions on page 24.

OFF

1. After lighting, let pilot flame burn for

about one minute. Turn gas control

knob to ON position.Adjust variable

control knob anywhere between HI

and LO. Slide the selector switch to

the REMOTE position (see Figure

54). Note: The burners may light if

hand-held remote ON button was on

when selector switch was last turned

off.You can now turn the burners on

and off with the hand-held remote

control unit.

Gas Control

Knob in ON

Position

Selector Switch in

Remote Position

Figure 54 - Setting the Selector Switch,

Gas Control Knob, and Variable Control

Knob for Remote Operation

Shows Temperature

Setting

Increases Room

Temperature

IMPORTANT: Do not leave the selec-

tor switch in the REMOTE position

when the pilot is not lit. This will

drain the battery.

IMPORTANT: Be sure to press the

ON/OFF buttons on the hand-held

remote control unit for up to 3 sec-

onds to assure proper operation.

Allows Burners to be

Turned On and Off

TEMP

Decreases Room

Temperature

with the Hand-Held

Remote Unit.

MAN

Turns Burners

On and Off

AUTO

OFF

The Heater will

Automatically Cycle

between Pilot and the

Heat Setting that has

been Selected.

STATUS

Shows Current

Operation Mode

Figure 55 - Hand-Held Thermostat Remote Control Unit Selections (CGHRCT)

Continued

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CHDV34NA, PA

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

Note for DA3620T Only: If you are If you pilot assembly does not meet these

usingDA3620Tblowerwithoptionalther- requirements:

OPERATING

FIREPLACE

mostat (wall mounted or remote control)

for the fireplace, your fireplace and

blower will not turn on and off at the

same time. The fireplace may run for

several minutes before the blower turns

on.Aftertheheatermodulatestothepilot

position, the blower will continue to run.

The blower will shut off after the firebox

temperature decreases.

• turn fireplace off (see To Turn Off Gas to

Appliance, page 24)

Continued

• see Troubleshooting, pages 28 through 30

OPERATING

Thermopile

OPTIONAL GWMT1

WALL MOUNTED

THERMOSTAT

3/8" to 1/2"

Pilot Burner

The blower helps distribute heated air

fromthefireplace. Periodicallycheckthe

louvers of the firebox and remove any

dust, dirt, or other obstructions that will

hinder the flow of air.

WARNING: Do not connect

thethermostattoapowersource.

Electricalshockand/orafirehaz-

ard will occur.

1/8"

Thermocouple

Light the fireplace as instructed in Light-

ing Instructions on page 24. Set wall ther-

mostat to desired temperature.

INSPECTING

BURNERS

Check pilot flame pattern and burner flame

patterns often.

Piezo

Ignitor

This thermostat has been electronically

calibrated at the factory and requires no

adjustment or leveling.

Figure 56 - Pilot Assembly

Upon installation, the thermostat must

be allowed to stabilize at room tempera-

ture for a minimum of 30 minutes for

proper operation.

BURNER FLAME PATTERN

PILOT ASSEMBLY

Burner flames will be steady; not lifting or

floating. Flame patterns will be different

from unit to unit and will vary depending on

installation type and weather conditions.

The pilot assembly is factory preset for the

proper flame height. Alterations may have

occurredduringshippingandhandling.Call

a qualified service person to readjust the

pilot if necessary.

To turn the fireplace off, adjust thermo-

stat to the lowest setting and turn the gas

control knob back to PILOT. The pilot

will remain lit.

If the vent configuration is installed incor-

rectly, the flames will lift or "ghost". This

can be dangerous. Inspect the flames after

installationtoensureproperinstallationand

performance.

The height of the thermopile must be 3/8" to

1/2" abovethepilotflameasshowninFigure

56. The thermocouple must be at a height of

about 1/8" above the pilot flame. The flame

from the pilot burner must extend beyond

both the thermocouple and thermopile.

IMPORTANT: To turn the pilot off, turn

the gas control knob on the heater to the

OFF position.

Figure 57 shows a typical flame pattern for

CHDV34(N/P)(A) models.

OPERATING

OPTIONAL BLOWER

ACCESSORY

If burner flame pattern differs from that

described:

• turn fireplace off (see To Turn Off Gas to

Appliance, page 24)

Locate the blower controls by opening

the lower louver panel on the fireplace.

Blower controls are located on the left

side of the switch bracket to the left just

inside the louver panel.

• see Troubleshooting, pages 28 through 30

Both the GA3750 manual blower and the

CDA3620T thermostatically-controlled

blower have an ON setting and an OFF

setting. The blower will only run when the

switch is in the ON position. In the OFF

position, the blower will not operate.

Figure 57 - Typical Flame Pattern for

CHDV34NA, PA

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OWNER’S MANUAL

Glass must be cleaned periodically. During

CLEANING AND

MAINTENANCE

WARNING: Do not operate

fireplace with the glass door re-

moved, cracked, or broken.

start-up it is normal for condensation to

form on the inside of the glass causing lint,

dust, and other airborne particles to cling to

the glass surface. During initial start-up a

slight film may form on the glass due to

paint curing. The glass should be cleaned

several times with a non-ammonia, non-

abrasive household cleaner and warm water

afterthefirsttwoweeksofoperation.There-

after, clean the glass two or three times

during each heating season, depending on

the usage and circumstances present. Refer

toRemoving/ReplacingGlassDooronpage

21ofthismanualwhenremovingglassdoor

for cleaning.

WARNING: Turn off fireplace

and let cool before cleaning.

PILOT AND BURNERS

• Remove ember material before cleaning

burners and replace when cleaning is

complete.

• Burner and controls should be cleaned

with compressed air to remove dust, dirt,

or lint.

• Use a vacuum cleaner or small, soft

bristled brush to remove excess dust, dirt,

or lint.

CAUTION:Youmustkeepcon-

trol areas, burners, and circulat-

ing air passageways of fireplace

clean. Inspect these areas of fire-

place before each use. Have fire-

place inspected yearly by a quali-

fiedserviceperson.Fireplacemay

need more frequent cleaning due

to excessive lint from carpeting,

bedding material, pet hair, etc.

LOGS

WARNING: Only parts sup-

pliedbythemanufacturershould

be used when replacing broken

ordamagedglassdoorpanel(see

ReplacementParts,page31).This

glass door panel is a complete

unit. Nosubstitutematerialsmay

be used.

• If you remove logs for cleaning, refer to

Installing Logs, Lava Rock, and Glowing

Embers, page 23, to properly replace logs.

• Use a vacuum cleaner to remove any car-

bon buildup on logs.

• Replace log(s) if broken. See Replace-

ment Parts on page 31.

• Replace ember material periodically as

GLASS DOOR

WARNING:Handleglassdoor

panel with care. Do not strike,

slam, or otherwise abuse glass.

Do not operate fireplace with the

glass door removed, cracked, or

broken.

needed. See Replacement Parts on page 31.

CAUTION: Wear gloves and

safety glasses while handling or

removing broken glass. Do not

remove if glass is hot. Keep chil-

dren and pets away from glass.

VENTING SYSTEM

Conduct annual inspection of the venting

system following these guidelines:

1. Check areas of venting system that are

exposed to the weather for corrosion (rust

spots or streaks and, in extreme cases,

holes). Have these items replaced imme-

diately by a qualified service person.

WARNING: Do not use abra-

sivecleanersasthismaydamage

glass. Use a nonabrasive house-

hold glass cleaner to clean glass.

Do not clean glass when hot.

If glass has been broken, carefully remove

glass door (see Removing/Replacing Glass

Door, page 21). Vacuum all glass pieces

with a shop vac.

2. Remove the vent cap and shine a flash-

light into the vent. Remove any foreign

material.

CAUTION: Do not vacuum if

pieces are hot.

3. Check for evidence of excessive con-

densation. Continuous condensation

can cause corrosion of caps, pipes, and

fittings and can be caused by having

excessive lateral runs, too many el-

bows, or exterior portions of the sys-

tem being exposed to cold weather.

Use only the ceramic glass door replace-

ment intended for this fireplace (see Re-

placement Parts, page 31 for detail on or-

dering). No substitutions may be made. See

Removing/Replacing Glass Door, page 21

for instructions for replacing glass door.

4. Inspect joints to verify that no pipe sec-

tion or fitting has been disturbed and

loosened. Check mechanical supports

such as wall straps for rigidity.

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CHDV34NA, PA

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

TROUBLESHOOTING

Note: For additional help, visit DESA

International’s technical service web

site at www.desatech.com.

WARNING: Turn off heater

andletcoolbeforeservicing.Only

aqualifiedservicepersonshould

service and repair heater.

CAUTION: Never use a wire,

needle, or similar object to clean

pilot. This can damage pilot unit.

Note:Alltroubleshootingitemsarelistedin

order of operation.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

When ignitor button is pressed, there is no

spark at pilot

1. Ignitor electrode not connected to igni- 1. Reconnect ignitor cable

tor cable

2. Ignitor cable pinched or wet

2. Free ignitor cable if pinched by any

metal or tubing. Keep ignitor cable dry

3. Tighten nut holding piezo ignitor. Nut

is located behind the mounting bracket

4. Replace ignitor cable

3. Piezo ignitor nut is loose

4. Broken ignitor cable

5. Bad piezo ignitor

5. Replace piezo ignitor

6. Ignitor electrode broken

7. Ignitor electrode positioned wrong

6. Replace pilot assembly

7. Replace pilot assembly

When ignitor button is pressed, there is

spark at pilot but no ignition

1. Gas supply turned off or manual shutoff 1. Turn on gas supply or open manual

valve closed shutoff valve

2. Gas control knob not in PILOT position 2. Turn gas control knob to PILOT position

3. Gas control knob not pressed in while 3. Press in gas control knob while in PILOT

in PILOT position

position

4. Air in gas lines when installed

4. Continue holding down control knob.

Repeat igniting operation until air is re-

moved

5. Depleted gas supply (propane/LP models 5. Contact local propane/LP gas company

only)

6. Pilot is clogged

6. Clean pilot (see Cleaning and Mainte-

nance, page 27) or replace pilot assembly

7. Replace gas control

7. Gas regulator setting is not correct

1. Gas control knob not fully pressed in

Pilot lights but flame goes out when control

knob is released

1. Press in gas control knob fully

2. Gas control knob not pressed in long 2. After pilot lights, keep gas control knob

enough

pressed in 30 seconds

3. Manual shutoff valve not fully open

3. Fully open manual shutoff valve

4. Pilot flame not touching thermocouple, 4. A) Contact local gas company

which allows thermocouple to cool,

causing pilot flame to go out. This prob-

lem could be caused by one or both of

the following:

B) Clean pilot (see Cleaning and

Maintenance, page 27) or replace pi-

lot assembly

A) Low gas pressure

B) Dirty or partially clogged pilot

5. Thermocouple connection loose at con- 5. Hand tighten until snug, then tighten

trol valve

1/4 turn more

6. Thermocouple damaged

7. Control valve damaged

6. Replace thermocouple

7. Replace control valve

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OWNER’S MANUAL

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Burner does not light after pilot is lit

1. Burner orifice clogged

1. Clean burner (see Cleaning and Mainte-

nance, page 27) or replace burner orifice

2. Contact local propane/LP or natural gas

company

2. Inlet gas pressure is too low

3. Thermopile leads disconnected or im- 3. Reconnect leads (see Wiring Diagram,

properly connected

page 31)

4. Thermopile is defective

4. Replace thermopile

Delayed ignition burner

1. Manifold pressure is too low

1. Contact local propane/LP or natural gas

company

2. Burner porting or orifice clogged

2. Clean burner (see Cleaning and Main-

tenance, page 27) or replace burner orifice

Burner backfiring during combustion

1. Burner orifice is clogged or damaged

1. Clean burner (see Cleaning and Mainte-

nance, page 27) or replace burner orifice

2. Replace damaged burner

2. Damaged burner

3. Gas regulator defective

3. Replace gas control

Slightsmokeorodorduringinitialoperation 1. Residues from manufacturing processes 1. Problem will stop after a few hours of

and logs curing operation

Heater produces a whistling noise when 1. Turning gas control knob to HI position 1. Turn gas control knob to LO position and

burner is lit

when burner is cold

2. Air in gas line

let warm up for a minute

2. Operate burner until air is removed from

line. Have gas line checked by local pro-

pane/LP or natural gas company

3. Dirty or partially clogged burner orifice 3. Clean burner (see Cleaning and Mainte-

nance, page 27) or replace burner orifice

Glass soots

1. Flame impingement on logs

2. Debris around burner air mixer

1. Adjust the log set so that the flame does

not excessively impinge on it

2. Inspect the opening at the base of the

burner to see that it is NOT packed with

any type of material

Fireplace produces a clicking/ticking noise 1. Metal expanding while heating or con- 1. This is common. If noise is excessive,

just after burners are lit or shut off

tracting while cooling

contact qualified service person

Remote does not function

1. Battery is not installed or battery power 1. Replace 9-volt batteries in receiver and

is low remote control

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Continued

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CHDV34NA, PA

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

TROUBLESHOOTING

Continued

WARNING: 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 your gas supplier, call the fire department.

IMPORTANT: Operating fireplace where impurities in air exist may create odors. Cleaning supplies,

paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes. These

fumes may mix with combustion air and create odors. These odors will disappear over time.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Fireplace produces unwanted odors

1. Gas leak. See Warning statement 1. Locate and correct all leaks (see Check-

above

ing Gas Connections, pages 19 and 20)

Fireplace shuts off in use

1. High or gusting winds

1. Fireplace has been tested for up to

40mph winds. However, extreme con-

ditions may occur. See Lighting Instruc-

tions on page 24

2. Low line pressure

2. Contact local propane/LP or natural gas

company

3. Pilot is partially clogged

3. Clean pilot (see Cleaning and Mainte-

nance, page 27)

4. Inner vent pipe leaking exhaust gasses 4. Locate and correct all leaks (see Check-

into system

5. Horizontal vent improperly pitched

ing Gas Connections, pages 19 and 20)

5. Horizontal vent termination should slope

down only enough to prevent any water

from entering the unit. The maximum

downward slope of the vent termination

is 1/4" for any horizontal run

6. Glass too loose and air tight gasket leaks 6. Tighten glass

in corners after usage

7. Bad thermopile or thermocouple

7. Replace faulty component

8. Improper vent cap installation

8. Check for proper installation and free-

dom from debris or blockage

Gas odor even when control knob is in OFF 1. Gas leak. See Warning statement 1. Locate and correct all leaks (see Check-

position

above

ing Gas Connections, pages 19 and 20)

2. Control valve defective

2. Replace control valve

Gas odor during combustion

Dark residue on logs or inside of fireplace

1. Gas leak. See Warning statement 1. Locate and correct all leaks (see Check-

above

ing Gas Connections, pages 19 and 20)

1. Improper log placement

2. Air holes at burner inlet blocked

3. Burner flame holes blocked

1. Properly locate logs (see Installing Logs,

Lava Rock, and Glowing Embers, page 23)

2. Clean out air holes at burner inlets. Pe-

riodically repeat as needed

3. Remove blockage or replace burner

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OWNER’S MANUAL

REPLACEMENT

PARTS

WIRING DIAGRAM

CAUTION: Label all wires prior to disconnection when servicing

controls. Wiring errors can cause improper and dangerous operation.

Verify proper operation after servicing.

Note: Use only original replacement parts.

Thiswillprotectyourwarrantycoveragefor

parts replaced under warranty.

Variable

PARTS UNDER WARRANTY

Fan Switch

(N.O.)

Fan Switch

Contact authorized retailers of this product.

If they can not supply original replacement

part(s), call DESA International’s Technical

Service Department at 1-800-DESA LOG

(1-800-337-2564).

Off

Black

Blue

WhencallingDESAInternational,haveready

• your name

• your address

• model and serial numbers of your fireplace

• how fireplace was malfunctioning

• type of gas used (propane/LP or natural gas)

• purchase date

110/115

V.A.C.

Black

White

Green

Blower

Motor

Figure 58 - Blower Wiring Diagram for Thermostat-Controlled Models

TECHNICAL

SERVICE

You may have further questions about in-

stallation, operation, or troubleshooting. If

Usually, we will ask you to return the defec-

tive part to the factory.

PARTS NOT UNDER

WARRANTY

Contact authorized retailers of this product. so, contact DESA International’s Technical

If they can not supply original replacement Service Department at 1-800-DESA LOG

part(s), call DESA International’s Parts (1-800-337-2564).

Department at 1-800-972-7879 for referral

You can also visit DESA International’s

information.

technical service web site at

www.desatech.com.

WhencallingDESAInternational,haveready

• model number of your fireplace

• the replacement part number

SPECIFICATIONS

CHDV34NA

17,000/24,000 Btu/hr

Natural

CHDV34PA

17,000/22,000 Btu/hr

Propane/LP

Piezo

SERVICE HINTS

Btu

When Gas Pressure Is Too Low

• pilot will not stay lit

Gas Type

Ignition

Piezo

• burners will have delayed ignition

• fireplace will not produce specified heat

Manifold Pressure

Minimum Inlet Supply Pressure

Thermal Efficiency

3.5" w.c.

10.0" w.c.

4.5" w.c.

11.0" w.c.

• propane/LP gas supply might be low

(propane/LP units only)

70%

Dimension, Inches/mm (HxWxD)

Fireplace (Actual size of

When Gas Quality Is Bad

• pilot will not stay lit

firebox. Measurements do not 32 ³/16" x 34 ³/8" x 18 ¹/2" 32 ³/16" x 34 ³/8" x 18 ¹/2"

• burners will produce flames and soot

• fireplace will backfire when lit

include nailing flanges or

stand-offs).

817 x 873 x 470mm

Carton

34" x 40" x 21"

940 x 1016 x 533mm

34" x 40" x 21"

940 x 1016 x 533mm

Ifyoufeelyourgaspressureistooloworgas

quality is bad, contact your local natural or

propane/LP gas supplier.

Weight, lbs/kg

Fireplace

Shipping

123 lbs/56 kg

126 lbs/57 kg

123 lbs/56 kg

126 lbs/57 kg

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CHDV34NA, PA

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

ILLUSTRATED

PARTS

BREAKDOWN

CHDV34NA

CHDV34PA

11 (Included in

Hardware Pack)

34-1

34-2

34-3

34-4

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OWNER’S MANUAL

This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions

listed under Replacement Parts on page 31 of this manual.

PARTS LIST

DIRECT-VENT FIREPLACE

CHDV34NA

CHDV34PA

KEY

NO.

KEY

NO.

PART NUMBER

DESCRIPTION

QTY.

PART NUMBER

DESCRIPTION

QTY.

34-1

34-2

34-3

34-4

104507-01

104508-01

104509-01

104510-01

104954-01

104963-01

104955-01

105457-01

105772-01

105772-02

105772-03

105772-04

M10908-2

M12461-73

H5C4-20B

NTC-4C

M12461-26

104555-02CJ

105775-16

104490-02CJ

105450-01CK

104615-02

104313-01

104313-02

105325-01

105575-01

Brass Elbow

Brass Fitting

Aluminum Tubing Assy

Pilot Tubing Assy

Screw

Washer

Nut

Log Set

Rear Log

Front Log

Left Log

Right Log

Screw

Bolt

Locknut

Screw

Grate Assembly

Glass Door Assy

Baffle

Front Assembly

Insulation

Hinge, Pin - Left

Hinge, Pin - Right

Burner Baffle

Wire Harness

104445-01

105278-01

105297-01

104479-10BR

M11084-26

M11084-46

105394-01

104443-01

104486-01

104482-01

104483-01

104491-01

104518-01

104527-01

104528-01

104537-01

104496-01

104496-02

104497-01

104497-02

104498-01

104499-01

104500-01

104501-01

104502-01

104503-01

104504-01

104504-02

104506-01

104506-02

Top Outer Casing

Outer Casing

Bottom Outer Casing

Firebox Assembly

Screw, Hex

Louver, Extruded

Firebox Support, Right

Firebox Support, Left

Switch Bracket

Floor Mounting Bracket

Relief Cover

Relief Cover Gasket

Relief Spring

Relief Washer

Valve Bracket

SIT Valve, Natural

SIT Valve, Propane/LP

SIT Pilot, Natural

SIT Pilot, Propane/LP

Thermocouple

Thermopile

Ignitor

Ignitor Bracket

Ignitor Screw

Ignitor Wire

Burner, Natural

Burner, Propane/LP

Orifice, Natural

Orifice, Propane/LP

PARTS AVAILABLE - NOT SHOWN

GA6060

104529-01

Lava Rock

Ember Material

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CHDV34NA, PA

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

ACCESSORIES

TEMP

MAN

AUT

OFF

Purchase these fireplace accessories from

your local retailer. If they can not supply

theseaccessories,callDESAInternational’s

Sales Department at 1-800-432-2382. for

information. You can also write to the ad-

dress listed on the back page of this manual.

TUS

RECEIVER AND HAND-HELD

THERMOSTAT REMOTE

CONTROL KIT - CGHRCT

SERIES

MANUAL BLOWER KIT

GA3750

BRICK LINER - CD8037A

(Not Shown)

Manualvariablecontrolbloweraccessorypro-

vides better heat distribution. Complete in-

stallationandoperationinstructionsincluded

in this manual.

Allows the fireplace to be operated in a manu-

allyorthermostatically-controlledmode.You

can adjust your heat settings and turn the

heateronoroffwithoutleavingthecomfortof

your easy chair. (Requires part no. 103284-04

wire harness included with fireplace).

This brick liner adds a touch of style to your

direct-vent fireplace. Complete installation

and operation instructions included in this

manual.

FLEXIBLE GAS LINE

CONNECTOR - GA5081

(Not Shown)

For all models.

TWO PIECE BRASS ACCENT

TRIM - CD7034

(Not Shown)

THERMOSTATICALLY-

CONTROLLED BLOWER KIT

CDA3620T

RECEIVER AND HAND-HELD

ON/OFF REMOTE CONTROL

KIT - CGHRC SERIES

For all models. Add a touch of class to your

fireplace.

Provides better heat distribution. Blower

turns off and on automatically, as needed.

Completeinstallationandoperationinstruc-

tions included in this manual.

For all models. Allows the heater to be

turned on and off conveniently.

DUPLEX OUTLET KIT

GA3555 (Not Shown)

WALL MOUNTED

THERMOSTAT CONTROL KIT

GWMT1 (Not Shown)

Use for recessed installations when hard

wiring a blower.

Allows easy wall access to the operation of

your fireplace. This will allow you thermo-

static control with the convenience of a wall

switch.

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OWNER’S MANUAL

CORNER MANTEL

ACCESSORY (Not Shown)

ACCESSORIES

Continued

GMC36FB - Walnut Finished

Hardwood Veneer

BRASS TRIM ACCESSORY

GA7090 (Not Shown)

GMC37UB - Unfinished

Hardwood Veneer

Optional with built-in installation. Provides a

finished appearance covering rough and/or

unfinished mantel or wall opening, edges, etc.

Mantel features moldings, fluted sides, and

medallion. Available in walnut finished or

unfinishedhardwood,readytostainorpaint.

CABINET MANTEL

ACCESSORY WITH

FIREPLACE PERIMETER

BRASS TRIM (Not Shown)

Dimensions (H x W x D):

48 ³/4" x 60 ⁷/8" x 34 ³/4"

GMC11F Series - Walnut

Finished Hardwood Veneer

GMC12U Series - Unfinished

Hardwood Veneer

HEARTH BASE

GMC13F Series - Stained Oak

Veneer

GC3333F Series - Walnut

Finished Hardwood Veneer

Mantel features moldings, fluted sides, and GC3334U Series - Unfinished

medallion. Available in oak or walnut fin-

ished and unfinished hardwood, ready to

stain or paint.

Hardwood Veneer

GC3335F Series - Stained Oak

Veneer

Dimensions (H x W x D):

48 ³/4" x 56 ³/4" x 22 ³/4"

Thehearthbasecreatesahandsomeriserfor

the fireplace .

Dimensions (H xW xD): 6 ¹/2" x 58" x 28⁹/16"

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WARRANTY INFORMATION

KEEP THIS WARRANTY

Model

Serial No.

Date Purchased

Always specify model and serial numbers when communicating with the factory.

We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written

warranty. We make no other warranty, expressed or implied.

LIMITED WARRANTY

DIRECT-VENT FIREPLACE

DESA International warrants this product to be free from defects in materials and components for two (2) years from the date of first

purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions.

To make a claim under this warranty the Bill of Sale or cancelled check must be presented.

This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required to restore this heater

toproperoperatingconditionandanallowanceforlaborwhenprovidedbyaDESAAuthorizedServiceCenter. Warrantypart(s)MUST

be obtained through authorized retailers of this product and/or DESA International who will provide original factory replacement parts.

Failure to use original factory replacement parts voids this warranty. The heater MUST be installed by a qualified installer inaccordance

with all local codes and instructions furnished with the unit.

This warranty does not apply to parts that are not in original condition because of normal wear and tear, or parts that fail or become

damaged as a result of misuse, accidents, lack of proper maintenance or defects caused by improper installation. Travel, diagnostic cost,

labor, transportation and any and all such other costs related to repairing a defective heater will be the responsibility of the owner.

TOTHEFULLEXTENTALLOWEDBYTHELAWOFTHEJURISDICTIONTHATGOVERNSTHESALEOFTHEPRODUCT;

THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURA-

TION OF ANY AND ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS

FOR A PARTICULAR PURPOSE TO TWO (2) YEARS ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE;

AND DESA INTERNATIONAL’S LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND

DESA INTERNATIONAL SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT,

INCIDENTAL OR CONSEQUENTIAL DAMAGES.

Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or consequential

damages, so the above limitation on implied warranties, or exclusion or limitation on damages may not apply to you.

This warranty gives you specific legal rights, and you may also have other rights that vary from state to state.

For information about this warranty write:

INTERNATIONAL

2701 Industrial Drive

P.O. Box 90004

Bowling Green, KY 42102-9004

www.desatech.com

105983-01

55774

105983 01

Rev. C

02/00

NOT A UPC

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