UNVENTED (VENT-FREE) GAS FIREPLACE OWNER’S OPERATION...

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WARNING: If the information in this manual is notfollowed exactly, a fire or explosion may result causingproperty damage, personal injury, or loss of life.

— Do not store or use gasoline or other flammablevapors and liquids in the vicinity of this or any otherappliance.

— WHAT TO DO IF YOU SMELL GAS• Do not try to light any appliance.• Do not touch any electrical switch; do not use any

phone in your building.• Immediately call your gas supplier from a neighbor’s

phone. Follow the gas supplier’s instructions.• If you cannot reach your gas supplier, call the fire

department.— Installation and service must be performed by a quali-

fied installer, service agency, or the gas supplier.

UNVENTED (VENT-FREE) GAS FIREPLACEOWNER’S OPERATION AND INSTALLATION MANUAL

Shown with optional cabinet mantel, hearth base, and trim accessories.

CGEFP33PR, CGEFP33NR, EFP33PR, AND EFP33NRGAS FIREPLACE WITH TOTAL CONTROL SYSTEM (TCS)

www.desatech.com 108117-01K2

WARNING: Improper installation, adjustment, altera-tion, service, or maintenance can cause injury or prop-erty damage. Refer to this manual for correct installationand operational procedures. For assistance or addi-tional information consult a qualified installer, serviceagency, or the gas supplier.

WARNING: This is an unvented gas-fired heater. It usesair (oxygen) from the room in which it is installed.Provisions for adequate combustion and ventilation airmust be provided. Refer to Air for Combustion andVentilation section on page 5 of this manual.

This appliance may be installed in an aftermarket,*permanently located, manufactured (mobile) home,where not prohibited by local codes.This appliance is only for use with the type of gasindicated on the rating plate. This appliance is notconvertible for use with other gases.

* Aftermarket: Completion of sale, not for purpose of resale, from themanufacturer

TABLE OF CONTENTSSafety Information ............................................... 3Product Identification .......................................... 4Local Codes ........................................................ 5Unpacking ........................................................... 5Product Features ................................................ 5Air For Combustion And Ventilation .................... 5Installation ........................................................... 8Operating Fireplace .......................................... 26Inspecting Burners ............................................ 28Cleaning and Maintenance ............................... 29

Troubleshooting ................................................. 30Wiring Diagram ................................................. 33Illustrated Parts Breakdown and Parts List ....... 34Specifications .................................................... 38Service Hints ..................................................... 38Technical Service .............................................. 38Replacement Parts ........................................... 38Templates .......................................................... 39Accessories ....................................................... 41

www.desatech.com108117-01K 3

SAFETY INFORMATION

WARNING: This product con-tains and/or generates chemicalsknown to the State of Californiato cause cancer or birth defects,or other reproductive harm.

IMPORTANT: Read this owner’smanual carefully and completelybefore trying to assemble, oper-ate, or service this fireplace. Im-proper use of this fireplace cancause serious injury or deathfrom burns, fire, explosion, elec-trical shock, and carbon mon-oxide poisoning.

DANGER: Carbon monoxidepoisoning may lead to death!

Carbon Monoxide Poisoning: Early signs of car-bon monoxide poisoning resemble the flu, with head-aches, dizziness, or nausea. If you have these signs,the fireplace may not be working properly. Get freshair at once! Have fireplace serviced. Some peopleare more affected by carbon monoxide than others.These include pregnant women, people with heartor lung disease or anemia, those under the influenceof alcohol, and those at high altitudes.Natural and Propane/LP Gas: Natural and Propane/LP gases are odorless. An odor-making agent is addedto these gases. The odor helps you detect a gas leak.However, the odor added to the gas can fade. Gasmay be present even though no odor exists.Make certain you read and understand all warn-ings. Keep this manual for reference. It is yourguide to safe and proper operation of this fireplace.

WARNING: Any change tothis heater or its controls can bedangerous.

WARNING: Do not allow fansto blow directly into the fireplace.Avoid any drafts that alter burnerflame patterns. Ceiling fans cancreate drafts that alter burnerflame patterns. Altered burnerpatterns can cause sooting.

WARNING: Do not use ablower insert, heat exchangerinsert, or other accessory notapproved for use with this fire-place.

Due to high temperatures, theappliance should be located outof traffic and away from furni-ture and draperies.

Do not place clothing or otherflammable material on or nearthe appliance. Never place anyobjects on the heater.

Fireplace front and screen be-come very hot when running fire-place. Keep children and adultsaway from hot surfaces to avoidburns or clothing ignition. Fire-place will remain hot for a timeafter shutdown. Allow surfacesto cool before touching.

Carefully supervise young chil-dren when they are in the roomwith fireplace. When using thehand-held remote accessory,keep selector switch in the OFFposition to prevent children fromturning on burners with remote.

You must operate this fireplacewith the fireplace screen andhood in place. Make sure fire-place screen and hood are inplace before running fireplace.

Keep the appliance area clearand free from combustible ma-terials, gasoline, and other flam-mable vapors and liquids.


1. This appliance is only for use with the type ofgas indicated on the rating plate. This appli-ance is not convertible for use with other gases.

2. Do not place propane/LP supply tank(s) in-side any structure. Locate propane/LP supplytank(s) outdoors (propane/LP units only).

3. If you smell gas

• shut off gas supply• do not try to light any appliance• do not touch any electrical switch; do not

use any phone in your building• immediately call your gas supplier from a

neighbor’s phone. Follow the gas supplier’sinstructions

• if you cannot reach your gas supplier, callthe fire department

4. This fireplace shall not be installed in a bed-room or bathroom.

5. Do not use this fireplace as a wood-burningfireplace. Use only the logs provided with thefireplace.

6. Do not add extra logs or ornaments such aspine cones, vermiculite, or rock wool. Usingthese added items can cause sooting. Do notadd lava rock around base. Rock and debriscould fall into the control area of fireplace.

7. To prevent the creation of soot, follow theinstructions in Cleaning and Maintenance,page 29.

8. Before using furniture polish, wax, carpetcleaner, or similar products, turn heater off. Ifheated, the vapors from these products maycreate a white powder residue within burnerbox or on adjacent walls or furniture.

9. This fireplace needs fresh air ventilation torun properly. This fireplace has an OxygenDepletion Sensing (ODS) safety shutoff sys-tem. The ODS shuts down the fireplace if notenough fresh air is available. See Air for Com-bustion and Ventilation, pages 5 through 7. Iffireplace keeps shutting off, see Troubleshoot-ing, pages 30 through 33.

10. Do not run fireplace• where flammable liquids or vapors are used

or stored• under dusty conditions

11. Do not use this fireplace to cook food or burnpaper or other objects.

SAFETY INFORMATIONContinued

12. Do not use fireplace if any part has been ex-posed to or under water. Immediately call aqualified service technician to inspect the fire-place and to replace any part of the controlsystem and any gas control which has beenunder water.

13. Do not operate fireplace if any log is broken.Do not operate fireplace if a log is chipped(dime-sized or larger).

14. Turn fireplace off and let cool before servic-ing. Only a qualified service person shouldservice and repair fireplace.

15. Operating fireplace above elevations of 4,500feet could cause pilot outage.

16. To prevent performance problems with propane/LP units, do not use propane/LP fuel tanks ofless than 100 lb. capacity (propane/LP units only).

17. Provide adequate clearances around air openings.

PRODUCTIDENTIFICATION

Figure 2 - Fireplace (EFP33PR Shown)

Top LouverAssembly

FireboxHood

Bottom LouverAssembly

ScreenAssembly

Top OuterCasing

Firebox Support

BlowerAssembly(Optional)

Log Set

Wall Switch/Plate

PiezoIgnitor

RemoteControl

ManualOverrideHandle

Manual IgnitionBypass Switch

Figure 1 - Fireplace Floor Assembly(EFP33PR Shown)


LOCAL CODESInstall and use fireplace with care. Follow all lo-cal codes. In the absence of local codes, use thelatest edition of The National Fuel Gas Code, ANSIZ223.1/NFPA 54*.*Available from:

American National Standards Institute, Inc.1430 Broadway

New York, NY 10018National Fire Protection Association, Inc.

Batterymarch ParkQuincy, MA 02269

UNPACKING

CAUTION: Do not removethe data plates attached to theheater base assembly. The dataplates contain important war-ranty and safety information.

1. With utility knife, cut the carton all the wayaround above the staples on the bottom tray.Lift the carton off the heater. Remove pack-ing. Note: The hood is located in the packingon the right hand side of the heater front. Liftthe heater off the bottom tray.

2. Locate two screws above top corners of thefireplace screen. Remove and discard thesescrews. Lift fireplace screen up and pull outto remove.

3. Remove protective packaging applied to logs,log base assembly, and fireplace.

4. Remove fireplace hood from carton insert.5. Check all items for any shipping damage. If

damaged, promptly inform dealer where youbought fireplace.

PRODUCT FEATURESOPERATIONThis vent-free fireplace is clean burning. It requiresno outside venting. There is no heat loss out a ventor up a chimney. Heat is generated by both realisticflames and glowing embers. When used withoutthe optional blower, the fireplace requires no elec-tricity making it ideal for emergency backup heat.

SAFETY DEVICEThis fireplace has a pilot with an Oxygen Deple-tion Sensing (ODS) safety shutoff system. TheODS/pilot is a required feature for vent-free roomheaters. The ODS/pilot system shuts off the fire-place if there is not enough fresh air.

PIEZO IGNITION SYSTEMThis fireplace has a piezo ignitor. This system re-quires no matches, batteries, or other sources tolight fireplace.

WIRELESS REMOTE CONTROLThis fireplace features an infrared wireless remotecontrol. This control system can be used to auto-matically light the pilot and adjust the burner flameheight at the push of a button.

WIRED WALL-MOUNTED REMOTECONTROLThis fireplace features a two-button wall switch andwall plate with glowing LED’s. The wall switchperforms the same functions as the wireless hand-held remote control with the added feature of LED’sfor visual feedback of operation and status.

OPTIONAL BLOWER ASSEMBLYACCESSORYThis fireplace accepts an optional blower assem-bly (not included). The GA3650T/GA3700T Se-ries blower operates thermostatically and featuresa variable speed control. The GA3700/GA3750Series operates manually and also features a vari-able speed control. The blower circulates heatedair from the fireplace into the room. Use of bloweris optional. See Accessories, page 41.

AIR FOR COMBUSTIONAND VENTILATION

WARNING: This fireplace shallnot be installed in a confined spaceor unusually tight constructionunless provisions are providedfor adequate combustion and ven-tilation air. Read the following in-structions to insure proper freshair for this and other fuel-burningappliances in your home.

Today’s homes are built more energy efficient thanever. New materials, increased insulation, and newconstruction methods help reduce heat loss inhomes. Home owners weather strip and caulkaround windows and doors to keep the cold air outand the warm air in. During heating months, homeowners want their homes as airtight as possible.While it is good to make your home energy effi-cient, your home needs to breathe. Fresh air mustenter your home. All fuel-burning appliances needfresh air for proper combustion and ventilation.


Exhaust fans, fireplaces, clothes dryers, and fuelburning appliances draw air from the house tooperate. You must provide adequate fresh air forthese appliances. This will insure proper ventingof vented fuel-burning appliances.

PROVIDING ADEQUATEVENTILATIONThe following are excerpts from National FuelGas Code, ANSI Z223.1/NFPA 54, Section 5.3, Airfor Combustion and Ventilation.

All spaces in homes fall into one of the three fol-lowing ventilation classifications:1. Unusually Tight Construction2. Unconfined Space3. Confined Space

The information on pages 5 through 7 will helpyou classify your space and provide adequate ven-tilation.

Unusually Tight ConstructionThe air that leaks around doors and windows mayprovide enough fresh air for combustion and ven-tilation. However, in buildings of unusually tightconstruction, you must provide additional fresh air.Unusually tight construction is defined asconstruction where:a. walls and ceilings exposed to the out-

side atmosphere have a continuouswater vapor retarder with a rating ofone perm (6 x 10-11 kg per pa-sec-m2)or less with openings gasketed orsealed and

b. weather stripping has been added onopenable windows and doors and

c. caulking or sealants are applied to ar-eas such as joints around window anddoor frames, between sole plates andfloors, between wall-ceiling joints, be-tween wall panels, at penetrations forplumbing, electrical, and gas lines, andat other openings.

If your home meets all of these three crite-ria, you must provide additional fresh air.See Ventilation Air From Outdoors, page 7.If your home does not meet all of the threecriteria above, proceed to DeterminingFresh-Air Flow For Fireplace Location,column 2.


Continued

Confined and Unconfined SpaceThe National Fuel Gas Code, ANSI Z223.1/NFPA54 defines a confined space as a space whose vol-ume is less than 50 cubic feet per 1,000 Btu perhour (4.8 m3 per kw) of the aggregate input ratingof all appliances installed in that space and an un-confined space as a space whose volume is notless than 50 cubic feet per 1,000 Btu per hour (4.8m3 per kw) of the aggregate input rating of all ap-pliances installed in that space. Rooms communi-cating directly with the space in which the appli-ances are installed*, through openings not fur-nished with doors, are considered a part of the un-confined space.* Adjoining rooms are communicating only if thereare doorless passageways or ventilation grills be-tween them.

DETERMINING FRESH-AIR FLOWFOR FIREPLACE LOCATION

Determining if You Have a Confined orUnconfined SpaceUse this work sheet to determine if you have aconfined or unconfined space.Space: Includes the room in which you will installfireplace plus any adjoining rooms with doorless pas-sageways or ventilation grills between the rooms.1. Determine the volume of the space (length x

width x height).Length x Width x Height =__________cu. ft.(volume of space)

Example: Space size 20 ft. (length) x 18 ft.(width) x 8 ft. (ceiling height) = 2880 cu. ft. (vol-ume of space)If additional ventilation to adjoining room is sup-plied with grills or openings, add the volume ofthese rooms to the total volume of the space.

2. Multiply the space volume by 20 to determinethe maximum Btu/Hr the space can support.__________ (volume of space) x 20 = (Maxi-mum Btu/Hr the space can support)Example: 2880 cu. ft. (volume of space) x 20 =57,600 (maximum Btu/Hr the space can support)

3. Add the Btu/Hr of all fuel burning appliances inthe space.Vent-free fireplace __________ Btu/HrGas water heater* __________ Btu/HrGas furnace __________ Btu/HrVented gas heater __________ Btu/HrGas fireplace logs __________ Btu/HrOther gas appliances* + __________ Btu/Hr

Total = __________ Btu/Hr* Do not include direct-vent gas appliances. Di-rect-vent draws combustion air from the outdoorsand vents to the outdoors.


Example:Gas water heater ______________ Btu/HrVent-free fireplace ______________ Btu/HrTotal ______________ Btu/Hr

4. Compare the maximum Btu/Hr the space cansupport with the actual amount of Btu/Hr used.________ Btu/Hr (maximum the space can support)________ Btu/Hr (actual amount of Btu/Hr used)Example: 57,600 Btu/Hr (maximum the space

can support)73,000 Btu/Hr (actual amount ofBtu/Hr used)

The space in the above example is a confined spacebecause the actual Btu/Hr used is more than the maxi-mum Btu/Hr the space can support. You must pro-vide additional fresh air. Your options are as follows:

A. Rework worksheet, adding the space of an adjoin-ing room. If the extra space provides an uncon-fined space, remove door to adjoining room or addventilation grills between rooms. See VentilationAir From Inside Building.

B. Vent room directly to the outdoors. See Ventila-tion Air From Outdoors.

C. Install a lower Btu/Hr fireplace, if lower Btu/Hrsize makes room unconfined.

If the actual Btu/Hr used is less than the maximumBtu/Hr the space can support, the space is an uncon-fined space. You will need no additional fresh air ven-tilation.

WARNING: If the area inwhich the fireplace may be op-erated is smaller than that de-fined as an unconfined space orif the building is of unusuallytight construction, provide ad-equate combustion and ventila-tion air by one of the methodsdescribed in the National FuelGas Code, ANSI Z223.1/NFPA54 Section 5.3 or applicable lo-cal codes.

VENTILATION AIR

Ventilation Air From Inside BuildingThis fresh air would come from an adjoining un-confined space. When ventilating to an adjoiningunconfined space, you must provide two perma-nent openings: one within 12" of the ceiling andone within 12" of the floor on the wall connectingthe two spaces (see options 1 and 2, Figure 3).You can also remove door into adjoining room (seeoption 3, Figure 3). Follow the National Fuel GasCode, ANSI Z223.1/NFPA 54, Section 5.3, Air forCombustion and Ventilation for required size ofventilation grills or ducts.

Ventilation Air From OutdoorsProvide extra fresh air by using ventilation grillsor ducts. You must provide two permanent open-ings: one within 12" of the ceiling and one within12" of the floor. Connect these items directly tothe outdoors or spaces open to the outdoors. Thesespaces include attics and crawl spaces. Follow theNational Fuel Gas Code, ANSI Z223.1/NFPA 54,Section 5.3, Air for Combustion and Ventilationfor required size of ventilation grills or ducts.IMPORTANT: Do not provide openings for inletor outlet air into attic if attic has a thermostat-con-trolled power vent. Heated air entering the atticwill activate the power vent.

40,000+ 33,000= 73,000


Continued

Figure 4 - Ventilation Air from Outdoors(EFP33PR Shown)

Figure 3 - Ventilation Air from InsideBuilding (EFP33PR Shown)

OutletAir

VentilatedAttic

OutletAir

InletAir

Inlet Air Ventilated Crawl Space

To CrawlSpace

To Attic

OrRemoveDoor intoAdjoining

Room,Option

3

Ventilation Grills Into Adjoining Room,

Option 2

VentilationGrills

Into Adjoining Room,

Option 1

12"

12"


INSTALLATION

NOTICE: This heater is intendedfor use as supplemental heat.Use this heater along with yourprimary heating system. Do notinstall this heater as your pri-mary heat source. If you have acentral heating system, you mayrun system’s circulating blowerwhile using heater. This will helpcirculate the heat throughout thehouse. In the event of a poweroutage, you can use this heateras your primary heat source.

WARNING: A qualified ser-vice person must install fire-place. Follow all local codes.

WARNING: Never install thefireplace• in a bedroom or bathroom• in a recreational vehicle• where curtains, furniture,

clothing, or other flammableobjects are less than 42 inchesfrom the front, top, or sides ofthe fireplace

• in high traffic areas• in windy or drafty areas

CAUTION: This fireplace cre-ates warm air currents. Thesecurrents move heat to wall sur-faces next to fireplace. Install-ing fireplace next to vinyl or clothwall coverings or operating fire-place where impurities (such as,but not limited to, tobaccosmoke, aromatic candles, clean-ing fluids, oil or kerosene lamps,etc.) in the air exist, may dis-color walls or cause odors.

Note: Your fireplace is designed to be used in zeroclearance installations. Wall or framing materialcan be placed directly against any exterior surfaceon the rear, sides, or top of your fireplace, exceptwhere standoff spacers are integrally attached. Ifstandoff spacers are attached to your fireplace,these spacers can be placed directly against wallor framing materials.Use the dimensions shown for rough openings tocreate the easiest installation (see Built-In Fire-place Installation, pages 21 and 22).

IMPORTANT: Vent-free heaters add moisture tothe air. Although this is beneficial, installing fire-place in rooms without enough ventilation air maycause mildew to form from too much moisture.See Air for Combustion and Ventilation, pages 5through 7.IMPORTANT: Make sure the fireplace is level. Iffireplace is not level, log set will not work properly.

CHECK GAS TYPEUse the correct gas type (natural or propane/LP)for your unit. If your gas supply is not correct, donot install fireplace. Call dealer where you boughtfireplace for proper type fireplace.

ELECTRICAL HOOKUPThis fireplace normally operates under 120 VAC/60 Hz line voltage. The electrical cord suppliedwith your fireplace is five feet in length. You mustlocate fireplace within reach of a 120 volt groundedelectrical outlet. If not, you must install an electri-cal outlet within reach of the fireplace power cord.The GA3555 outlet accessory may be used forbuilt-in applications.

INSTALLATION CLEARANCES

WARNING: Maintain theminimum clearances. If you can,provide greater clearances fromfloor, ceiling, and adjoining wall.

Carefully follow the instructions below. This willensure safe installation.

Minimum Clearances For SideCombustible Material, Side Wall, andCeilingA. Clearances from the side of the fireplace cabi-

net to any combustible material and wallshould follow diagram in Figure 5, page 9.Example: The face of a mantel, bookshelf, etc.is made of combustible material and protrudes3 1/2" from the wall. This combustible mate-rial must be 4" from the side of the fireplacecabinet (see Figure 5, page 9).


B. Clearances from the top of the fireplace open-ing to the ceiling should not be less than 42inches.

INSTALLATIONContinued

1. Remove fireplace screen. Remove two screwsthat hold fireplace screen in place for ship-ping. These screws are located near top ofscreen. Discard screws. Lift fireplace screenup and pull out to remove.

2. If logs are installed, carefully remove the logsand set aside, noting the properly mountedlocation of each.

3. Remove screws that attach fireplace floor as-sembly to fireplace. Open lower louver door.Carefully lift up fireplace floor assembly andremove from fireplace, taking care to pull flex-ible gas line through the access holes (see Fig-ure 6). Note: Be careful of all wires on under-side of log base.

CAUTION: Do not pick upfireplace floor assembly by burn-ers. This could damage burn-ers. Only handle base by grates.

Figure 5 - Minimum Clearance forCombustible to Wall

*Minimum 16 inches from Side Wall

*

Example

INSTALLATION SEQUENCEAfter unpacking fireplace (see Unpacking, page5), we suggest that you install your fireplace sys-tem in the following sequence:1. Removal of fireplace floor assembly (re-

quired)2. Electrical connections for power cord (re-

quired)3. Relocating wall switch (optional)4. Installing blower accessory (optional)5. Connecting fireplace to gas supply (required)6. Checking gas connections (required)7. Firebox installation, conventional or built-in

(required)8. Installing brass perimeter trim (optional)9. Installing fireplace hood (required)10. Installing logs (required)11. Installing fireplace screen (required)Use the following instructions to complete each step.

REMOVING FIREPLACE SCREENAND FLOOR ASSEMBLY

NOTICE: Shutoff gas supply anddisconnect heater from gas sup-ply if installing blower into pre-viously installed fireplace. Con-tact a qualified service personto do this.

Figure 6 - Removing Fireplace FloorAssembly

Screws

Fireplace Floor Assembly

Flexible Gas Line

ELECTRICAL CONNECTIONS FORPOWER CORDThis fireplace operates on 120 VAC, 60 Hz power.An electrical power cord is supplied with this unit.For Mantel Installation1. Determine from which side of the fireplace

the power cord will exit. Locate the 1.5" di-ameter hole near the center of floor supportbracket on appropriate side of lower cavity(see Figure 7).

Figure 7 - Routing Power Cord

PowerCord

Bushings

Hole in Floor Support Bracket

Hole inOuterCasing


2. Locate power cord. Remove wire tie or tapeholding plug end of power cord.

3. Power cord has 2 plastic hole bushingsthreaded onto it. Route cord's 3-prong plugthrough the 1.5" diameter hole in appropriatefloor support bracket.

4. Push first plastic bushing completely throughhole. Squeeze bushing as needed to do this.

5. Install the second plastic bushing into the holein the floor support bracket by snapping intoplace.

6. Route the 3-prong plug through the 1.5" holein fireplace outer casing.

7. Install the first plastic bushing into this holeby snapping into place.

8. After you have connected to gas supply andchecked your gas connections (see pages 17through 19), plug power cord into any conve-nient 3-prong grounded wall receptacle nearfireplace.

For Recessed InstallationIf an outlet is not installed in fireplace, installmodel GA3555 - Outlet Kit with Cover. This kitwill supply a convenient 3-prong grounded elec-trical outlet for power. Refer to installation manualprovided with this optional accessory for instruc-tions on wiring. Note: A qualified installer mustmake all electrical connections.

RELOCATING WALL SWITCHNote: The decorative wall switch plate suppliedis white. The wall switch plate may be painted tomatch your decor.The push-button switch and decorative wall plateassembly supplied with your fireplace is pre-mounted at the factory in the lower cavity of thefireplace. You may relocate this switch/plate as-sembly to a more convenient location such as theside of your mantel or directly onto the wall nearthe fireplace. To mount the wall switch/plate as-sembly, you must first cut openings in the mantelor wall where the switch will be located.Note: If you choose to relocate the wall switch,do so before final installation into a mantel or re-cessing into a wall. If you are installing an op-tional blower accessory, install it at the same timeyou relocate the wall switch.

INSTALLATIONContinued CAUTION: The wall switch

must never be mounted directlyabove the fireplace where heatmay damage it. If you relocatewall switch from lower fireplacecavity, it must be mounted ei-ther on side wall of mantel or onwall to side of fireplace.

For Recessed InstallationIf fireplace is to be recessed into a wall (see Built-In Fireplace Installation, pages 21 and 22), werecommend mounting wall switch to left side offireplace. The wall switch should be mounted ap-proximately 12" from left edge of fireplace, andless than 60" from the floor. IMPORTANT: Donot locate wall switch directly in front of wall stud- there must be room behind wall board for wiresfrom switch. If you choose to locate wall switchto right side of fireplace, the length of the cordrestricts you to less than 6" from right edge of fire-place and less than 48" from floor.For Mantel InstallationIf fireplace is to be installed into a mantel, (seeConventional Fireplace Installation, page 20) thewall switch may be mounted on either side of themantel, facing to the side. Do not locate wall switchanywhere on the front face of the mantel.

CAUTION: Be careful of gaslines and wiring when moving floor.

1. Determine the new location for the wallswitch. The wires attached to switch are sixfeet long.

2. Remove 2 screws securing plastic wall plate tobracket in fireplace lower cavity. Save screws.

3. Remove wire tie holding coiled wire attachedto wall switch (see Figure 8).

4. Remove wall switch/plate assembly frombracket.

WireTie

BurnerOutletTube

FireboxBottom

Figure 8 - Relocating Switch and WallPlate

Switch withWall Plate

Gas ControlValve



5. Carefully pass wall plate and cord throughlarge elongated hole in rear of either left orright floor support bracket, depending on de-sired location of switch. Pass wall plate andcord through 1.5" diameter hole in side of fire-place outer casing (see Figure 9).

6. Pull wall plate and cord from fireplace mak-ing sure wall switch/plate assembly will reachdesired mounting location without strainingcord assembly.

If you are mounting wall switch to a wall, con-tinue reading. If you are mounting your wall switchto the side of the mantel, see page 12.

CAUTION: Do not apply ex-cessive pull on cord.

Figure 9 - Routing Wall Switch/PlateThrough Fireplace for Relocation

Wall Switch/Plate Assy

Hole inOuterCasing

Hole inFloorSupportBracket

Mounting Wall Switch to Wall for RecessedFireplace7. Create three openings on wall according to Tem-

plate 1, page 39. This is best done by making apattern to work with on your wall. Carefullycut page 41/42 from manual and tape papertemplate vertically onto wall at preferred loca-tion. Pierce the paper at the centers of the 2holes with a nail or sharp pencil, leaving a markon the wall. Do the same at centers of the fourcircles near the corners of the rectangle.

8. Remove paper template from wall.9. Drill 3/8" holes at each mark.10. Using a straight edge and pencil, connect the

outer edges of the 4 holes for the rectangle(see Figure 10). This will give you cuttinglines for the rectangle you will cut in the wall.

11. Using a keyhole saw, hack saw blade, drill, file,or other suitable tool, carefully cut out the rect-angular opening. Note: The corners of the rect-angle may be round. IMPORTANT: Do not ex-ceed the size of the rectangle on template.

12. From inside the recessed opening for the fire-place, carefully pass switch/plate assemblythrough the rectangular opening to the out-side of the wall.

13. Using wall anchors supplied in hardware pack-age, fold wall anchor as shown in Figure 11.

14. Insert wall anchor, wings first, into hole. Tapanchor flush to wall.

15. For thin walls (1/2" or less), insert red key intowall anchor. Push red key to “pop” open an-chor wings. See Figure 12. IMPORTANT: Donot hammer key! For thick walls (over 1/2"thick), do not pop open wings.

16. Position switch/plate assembly vertically overwall openings with decal lettering upright (seeFigure 13).

17. Insert mounting screws, removed in step 2 ofRelocating Wall Switch on page 10, throughholes in wall plate and into wall anchors.

18. Tighten screws until wall plate is firmly at-tached to wall. Do not overtighten.

Figure 11 - FoldingAnchor

Figure 10 - Using Template for WallSwitch Installation

Templatefrom ThisManual

MakeMarks atCentersof Holes

Figure 12 - PoppingOpen Anchor Wings

for Thin Walls

4 3/4"

3 3/4"

3/8"

3/16"

3/4"

3/8"Diameter2 Holes

CuttingLines

Tape

Screws

Wall Plate/Switch

Opening in Wallor Mantel Wall

Figure 13 - Securing Wall Switch


Mounting Wall Switch to Side of Mantel7. Create three openings in the mantel wall ac-

cording to Template 2, page 39. This is bestdone by making a pattern to work with on themantel. Carefully cut page 41/42 from manualand tape paper template vertically onto man-tel wall at preferred location. Pierce the paperat the centers of the 2 holes with a nail or sharppencil, leaving a mark on the wall. Do thesame at centers of the four circles near the cor-ners of the rectangle.

8. Remove paper template from mantel wall.9. Drill 1/8" pilot holes at each mark for top and

bottom screw holes. Drill 3/8" holes at eachmark for centers of four circles near cornersof rectangle.

10. Using a straight edge and pencil, connect theouter edges of the 4 holes for the rectangle(see Figure 10, page 11). This will give youcutting lines for the rectangle you will cut inthe mantel wall.

11. Using a keyhole saw, hack saw blade, drill, file,or other suitable tool, carefully cut out the rect-angular opening. Note: The corners of the rect-angle may be round. IMPORTANT: Do not ex-ceed the size of the rectangle on template.

12. Carefully pass switch/plate assembly throughrectangular opening from inside mantel (seeFigure 13, page 11).

13. Position switch/plate assembly vertically overopening with decal lettering upright. Makesure wires freely pass through wall withoutbinding. Align holes in wall plate with 1/8"pilot holes in mantel wall.

14. Drive mounting screws, removed in step 2 ofRelocating Wall Switch on page 10, through wallplate holes and into pilot holes in mantel wall.

15. Tighten screws until wall plate is firmly at-tached to mantel. Do not overtighten.

INSTALLING VARIABLE SPEEDBLOWER ACCESSORY

NOTICE: Shut off gas supplyand disconnect heater from gassupply if installing blower intopreviously installed fireplace.Contact a qualified service per-son to do this.


1. If fireplace screen and floor are still installed,see Removing Fireplace Screen and FloorAssembly, page 9.

2. Attach the power cord to the blower motor byfirmly pushing the two female terminals at theend of the power cord onto the two spade ter-minals on the blower motor.

3. Attach green ground wire from power cord toblower housing using screw provided (see Fig-ure 14). Tighten screws securely.

4. Place the blower against lower rear wall offirebox outer wrapper with the exhaust portdirected upward. Align the holes in top mount-ing tabs of blower with holes in wall of wrap-per (see Figure 14). Using 2 screws provided,mount blower and tighten screws securely.

5. Be certain that all wire terminals are securelyattached to terminals on blower motor and thatthe screw retaining the green ground wire is tight.

6. Place control knob provided on plastic con-trol shaft of speed control.

7. Mount the speed control on the front leg ofthe left floor support bracket using 2 screwsprovided (see Figure 15).

Figure 14 - Mounting Blower to Firebox

Lower RearWall ofFirebox

Blower

TopMountingTab

ExhaustPort

ScrewGreen Ground Wire

Screws

Figure 15 - Attaching Speed Control toFirebox

Screws

SpeedControl

ControlKnob

Left FloorSupportBracket

ControlShaft


Variable

Fan Switch

White

White

Black

Green

On

110/115

V.A.C.

Blower

Motor

Black

Black

Black Off


8. Plug in blower power cord.a. If your fireplace system is installed as a free-

standing unit with an accessory mantel, de-termine whether the power cord will exit theleft side or the right side of the firebox. In-stall 1 plastic bushing provided into the 1.5"hole in the floor support bracket on the exitside (see Figure 16). Install the second plas-tic bushing provided into the 1.5" hole in theouter casing through which the power cordwill exit. Route power cord through bothplastic bushings and plug the power cord intoa properly grounded 3-prong wall receptaclenear the firebox.

b. If your fireplace system installation is re-cessed and if an outlet is not installed inyour fireplace, you must install the GA3555Outlet kit with cover in your fireplace whichwill supply a convenient 3-prong groundedelectrical outlet for your blower. Refer to theinstallation manual provided with the modelGA3555 accessory for instructions on wir-ing the duplex outlet.Note: A qualified installer must make allelectrical connections.

9. Check to make sure that all electrical cordsare completely clear of the blower wheel andthat there are no other foreign objects inblower wheel. Turn blower on and check foroperation. Turn blower off by rotating knobfully counterclockwise before continuing.

CAUTION: Never touch theblower wheel while in operation.

10. Peel off backing paper and stick supplied wir-ing diagram decal near center of firebox bot-tom (Figure 17).

11. If gas connections have been made andchecked, replace fireplace floor assembly.Feed flexible gas supply line into fireplacebase area while replacing fireplace floor as-sembly. Make sure the entire flexible gas lineis in fireplace base area.IMPORTANT: Do not pick up fireplace floorassembly by burners. This could damage burn-ers. Only handle base by grates. Note: Becareful of all wires and components on un-derside of floor assembly.

Figure 16 - Installing Plastic Bushing forPower Cord

PlasticBushing

Right FloorSupport Bracket

WARNING: Never attempt to serviceheater while it is plugged in, operating, orhot. Burns and electrical shock could result.Only a qualified service person should ser-vice or repair heater.If any of the original wire as supplied with the appli-ance must be replaced, it must be replaced with105°C wire or it’s equivalent.

WARNING: Label all wires prior to discon-nection when servicing controls. Wiring errorscan cause improper and dangerous operation.Verify proper operation after servicing.

VariableFan Switch

WhiteWhite

Black

Green

On

110/115 V.A.C.

BlowerMotor

Black Bla

ck

Bla

ck

Off

101584-05120 Vac. 60 Hz. . 78 AmpsDESA Heating Products, Bowling Green, KY

Figure 17 - Location of Wiring DiagramDecal 3" from Blower

WiringDiagram


12. Reattach fireplace floor assembly with screwsremoved in step 3 of Removing FireplaceScreen and Floor Assembly, page 9. Note: Dis-card the remaining hardware items. After as-sembly, make sure all wires are completelyclear of blower wheel.

13. Install logs (see Installing Logs, pages 23through 25) and fireplace screen (see Install-ing Screen, page 25).

WARNING: Failure to positionthe parts in accordance with sup-plied diagrams or failure to useonly parts specifically approvedwith this heater may result in dam-age or personal injury.

WARNING: A qualified ser-vice person must connect fire-place to gas supply. Follow alllocal codes.

Operating the BlowerLight your gas appliance with the blower off. Af-ter about 15 minutes, turn the blower on to deliverheated air at the top louvers. The blower featuresa variable control which allows you to select thespeed you desire. Note: Periodically check the lou-vers of the firebox and remove any dust, dirt, orother obstructions.

INSTALLING THERMOSTATICBLOWER ACCESSORY

NOTICE: Shut off gas supplyand disconnect heater from gassupply if installing blower in pre-viously installed fireplace. Con-tact a qualified service personto do this.

1. If fireplace screen and floor are still installed,see Removing Fireplace Screen and FloorAssembly, page 9.

2. Using screw provided, attach green groundwire from speed control cord to blower hous-ing. Tighten screw securely (see Figure 18).


3. Place the blower against lower rear wall offirebox outer wrapper with the exhaust portdirected upward. Align the holes in top mount-ing tabs of blower with holes in wall of wrap-per (see Figure 19, page 15). Using two #8screws provided, mount blower and tightenscrews firmly.

4. Remove the three screws (do not discard) andcover plate from center of firebox wrapper rearwall. Discard this cover plate (see Figure 18).

5. Mount the supplied thermostatic switch andcover assembly into firebox wrapper wall. Dothis by feeding terminal ends of wire harnessinto the hole. Allow wires to fall to bottom offirebox cavity (see Figure 18).

6. Using three screws from step 7, attach switchand cover assembly to firebox wrapper rearwall. Tighten screws firmly (see Figure 18).

7. Firmly attach red wire from the thermostaticswitch and cover assembly to either of the ter-minals on the blower motor (see Figure 18).

8. Firmly attach black wire from speed controlcord to blue wire from thermostatic switch andcover assembly (see Figure 18).

9. Firmly attach white wire from speed controlcord to remaining terminal on blower motor(see Figure 18).

Figure 18 - Installing Switch and CoverAssembly, and Speed Control

Thermostatic Switchand Cover Assembly

BlueWire

BlackWire

GreenWire

WhiteWire

Speed Control

RedWire



Blower

#8 Screws

Lower Rear Wall of Firebox

ExhaustPort

TopMountingTab

Figure 19 - Mounting Blower to Firebox

10. Place control knob provided on plastic con-trol shaft of speed control (see Figure 20).

11. Mount the speed control onto the front leg ofthe left floor support bracket using 2 screwsprovided (see Figure 20).

WARNING: Failure to connectall wires properly as indicatedmay cause electrical short circuitor personal injury. A qualified elec-trician should check that all con-nections are made properly.

12. Plug in blower power cord.a. If your firebox is installed as a freestand-

ing unit with an accessory mantel, deter-mine whether the power cord will exit theleft side or the right side of the firebox. In-stall one plastic bushing provided into the 11/2" hole in the floor support on the exit side.Install the second bushing provided into the1 1/2" hole in the outer casing through whichthe power cord will exit (see Figures 21 and22). Route power cord through plastic bush-ings and plug the power cord into a properlygrounded three-prong wall receptacle nearthe firebox.

b. If your fireplace system installation is re-cessed and if an outlet is not installed inyour fireplace, you must install the GA3555Outlet kit with cover in your fireplace whichwill supply a convenient 3-prong groundedelectrical outlet for your blower. Refer to theinstallation manual provided with the modelGA3555 accessory for instructions on wir-ing the duplex outlet.Note: A qualified installer must make allelectrical connections.

13. Check to make sure that the power cord andall wires are completely clear of the blowerwheel and that there are no other foreign ob-jects in blower wheel.

CAUTION: Never touch theblower wheel while in operation.

Figure 20 - Attaching Speed Control

Figure 21 - Installing Plastic Bushing forPower Cord (Right Side Exit Shown)

Control Knob

Screws

Speed Control

FloorSupportBracket

Right Floor SupportBracket

Bushing Locationfor RecessedInstallation

Bushing Locationfor FreestandingInstallation

Figure 22 - Installing Bushings (Left SideExit shown)

PlasticBushing

PlasticBushing


14. Peel off backing paper and stick supplied wir-ing diagram decal near center of firebox bot-tom (see Figure 23).

15. If gas connections have been made andchecked, replace fireplace floor assembly infireplace. Feed flexible gas supply line intofireplace base area while replacing fireplacefloor assembly. Make sure the entire flexiblegas line is in fireplace base area. IMPOR-TANT: Do not pick up fireplace floor assem-bly by burners. This could damage burners.Only handle base by grates. Note: Be carefulof all wires and components on underside offloor assembly.

16. Reattach fireplace floor assembly with screwsremoved in step 3 of Removing FireplaceScreen and Floor Assembly, page 9. Note: Dis-card the remaining hardware items. After as-sembly, make sure all wires are completelyclear of blower wheel.

17. Install logs (see Installing Logs, pages 23through 25) and fireplace screen (see Install-ing Screen, page 25).

WARNING: Failure to positionthe parts in accordance with sup-plied diagrams or failure to useonly parts specifically approvedwith this heater may result in dam-age or personal injury.


Red

VariableFan Switch Fan Switch

(N.O.)

GreenWhite

On

110/115 V.A.C.

BlowerMotor

Black

Off1

2 Black

Blue

Figure 23 - Location of Wiring Diagram Decal 3" from Blower (actualheater may vary from illustration)

120 Vac. 60 Hz. .90 AmpsDESA Heating Products, Bowling Green, KY

Variable

Fan Switch

White

White

Black

Green

On

110/115

V.A.C.

Blower

Motor

Black

Black

Black Off

WARNING: Never attempt to service heater while it isplugged in, operating, or hot. Burns and electrical shockcould result. Only a qualified service person should ser-vice or repair heater.If any of the original wire as supplied with the appliance must bereplaced, it must be replaced with 105°C wire or it’s equivalent.

WARNING: Label all wires prior to disconnection whenservicing controls. Wiring errors can cause improper and dan-gerous operation. Verify proper operation after servicing.

WiringDiagram

If any of the original wire as supplied with theappliance must be replaced, it must be replacedwith 105˚C wire or it's equivalent.

Operating the BlowerAfter final installation of your fireplace, light yourgas appliance with the blower off. After about 15minutes, turn the blower on to deliver heated air atthe top louvers. The blower features a variable con-trol which allows you to select the speed you de-sire. In the OFF position, the blower will not oper-ate. In the ON position, the blower will start whenthe thermostat senses a sufficient increase in fire-box temperature (approximately 10 to 20 minutesdepending on heat setting).Your gas logs and thermostat blower will not turnon and off at the same time. The fireplace may runfor several minutes before the blower turns on. Af-ter the heater modulates to the pilot position, theblower will continue to run. The blower will shutoff after the firebox temperature decreases.It is safe to operate fireplace with blower turnedoff. However, the blower helps distribute heatedair from the fireplace.Note: Periodically check the louvers of the fireboxand remove any dust, dirt, or other obstructions.



INSTALLING GAS PIPING TOFIREPLACE LOCATION


WARNING: For propane/LPunits, never connect fireplace di-rectly to propane/LP supply. Thisfireplace requires an externalregulator (not supplied). Installthe external regulator between theheater and propane/LP supply.

WARNING: For natural gasunits, never connect fireplaceto private (non-utility) gas wells.This gas is commonly known aswellhead gas.

Installation Items NeededBefore installing fireplace, make sure you havethe items listed below.• external regulator (supplied by installer, for

propane/LP units only)• piping (check local codes)

• sealant (resistant to propane/LP gas)• equipment shutoff valve *• test gauge connection *• sediment trap• tee joint• pipe wrench• approved flexible gas line with gas connector

(if allowed by local codes) (not provided)* A CSA design-certified equipment shutoff valvewith 1/8" NPT tap is an acceptable alternative totest gauge connection. Purchase the optional CSAdesign-certified equipment shutoff valve from yourdealer. See Accessories, page 41.For propane/LP connections only, the installermust supply an external regulator. The externalregulator will reduce incoming gas pressure. Youmust reduce incoming gas pressure to between 11


and 14 inches of water. If you do not reduce in-coming gas pressure, heater regulator damagecould occur. Install external regulator with the ventpointing down as shown in Figure 24. Pointing thevent down protects it from freezing rain or sleet.

CAUTION: Use only new,black iron or steel pipe. Inter-nally-tinned copper tubing maybe used in certain areas. Checkyour local codes. Use pipe of 1/2"diameter or greater to allowproper gas volume to fireplace.If pipe is too small, undue lossof volume will occur.

Installation must include an equipment shutoff valve,union, and plugged 1/8" NPT tap. Locate NPT tapwithin reach for test gauge hook up. NPT tap mustbe upstream from fireplace (see Figure 24).IMPORTANT: Install equipment shutoff valve inan accessible location. The equipment shutoffvalve is for turning on or shutting off the gas tothe appliance.Check your building codes for any special require-ments for locating equipment shutoff valve to fire-places.Apply pipe joint sealant lightly to male NPTthreads. This will prevent excess sealant from go-ing into pipe. Excess sealant in pipe could resultin clogged fireplace valves. Never use sealant onflare threads.

WARNING: Use pipe jointsealant that is resistant to liquidpetroleum (LP) gas.

Figure 24 - External Regulator with VentPointing Down

Propane/LPSupply Tank

ExternalRegulator

VentPointingDown



Figure 25 - Gas Connection* Purchase the optional CSA design-certifiedequipment shutoff valve from your dealer. SeeAccessories, page 41.

NaturalFrom Gas Meter(5" W.C. to 10.5"W.C. Pressure)

Propane/LPFrom ExternalRegulator (11"W.C. to 14 "W.C. Pressure

CSA Design-CertifiedEquipment Shutoff ValveWith 1/8" NPT Tap*

3" Minimum

Sediment Trap

Pipe Cap TeeNipple Joint

CONNECTING FIREPLACE TO GASSUPPLY

Installation Items Needed• 5/16" hex socket wrench or nut-driver• Phillips screwdriver• sealant (resistant to propane/LP gas, not pro-

vided)1. If fireplace screen and floor are still installed,

see Removing Fireplace Screen and FloorAssembly, page 9.

2. Route gas line (provided by installer) fromequipment shutoff valve to fireplace. Routeflexible gas supply line through one of theaccess holes.

Figure 26 - Attaching Gas Lines Together

From Gas Meter (Natural)From External Regulator(Propane/LP)

Flexible Gas Linefrom FireplaceGas Regulator

To FireplaceGas Regulator

EquipmentShutoff ValveProvided byInstaller

CHECKING GAS CONNECTIONS

WARNING: Test all gas pip-ing and connections, internaland external to unit, for leaksafter installing or servicing. Cor-rect all leaks at once.

WARNING: Never use anopen flame to check for a leak.Apply a noncorrosive leak de-tection fluid to all joints. Bubblesforming show a leak. Correct allleaks at once.

We recommend that you install a sediment trap insupply line as shown in Figure 25. Locate sedi-ment trap where it is within reach for cleaning.Install in piping system between fuel supply andfireplace. Locate sediment trap where trapped mat-ter is not likely to freeze. A sediment trap trapsmoisture and contaminants. This keeps them fromgoing into fireplace gas controls. If sediment trapis not installed or is installed wrong, fireplace maynot run properly.

NOTICE: Most building codes donot permit concealed gas con-nections. A flexible gas line isprovided to allow accessibilityfrom the fireplace (see Figure 26).The flexible gas supply line con-nection to the equipment shutoffvalve should be accessible.

3. Attach the flexible gas line to gas supply (seeFigure 26). Check tightness of flexible gasline attached to gas regulator of fireplace (seeFigure 26).

4. Check all gas connections for leaks. SeeChecking Gas Connections.

5. Replace fireplace floor assembly. Feed flexiblegas line into fireplace base area while replac-ing fireplace floor assembly. Make sure the en-tire flexible gas line is in fireplace base area.Note: Be careful of wires and components onunderside of fireplace floor. Reattach fireplacefloor assembly with screws removed in step 3of Removing Fireplace Screen and Floor As-sembly, page 9.



WARNING: For propane/LPunits, make sure external regu-lator has been installed betweenpropane/LP supply and heater.See guidelines under InstallingGas Piping to Fireplace Loca-tion, page 17.

Pressure Testing Gas Supply PipingSystemTest Pressures In Excess Of 1/2 PSIG (3.5 kPa)1. Disconnect appliance with its appliance main

gas valve (control valve) and equipmentshutoff valve from gas supply piping system.Pressures in excess of 1/2 psig will damagefireplace gas regulator.

2. Cap off open end of gas pipe where equip-ment shutoff valve was connected.

3. Pressurize supply piping system by eitheropening propane/LP supply tank valve forpropane/LP gas or opening main gas valve lo-cated on or near gas meter for natural gas, orusing compressed air.

4. Check all joints of gas supply piping system.Apply noncorrosive leak detection fluid to alljoints. Bubbles forming show a leak.

5. Correct all leaks at once.6. Reconnect fireplace and equipment shutoff

valve to gas supply. Check reconnected fit-tings for leaks.

Test Pressures Equal To or Less Than 1/2PSIG (3.5 kPa)1. Close equipment shutoff valve (see Figure 27).2. Pressurize supply piping system by either

opening propane/LP supply tank valve forpropane/LP gas or opening main gas valve lo-cated on or near gas meter for natural gas, orusing compressed air.

3. Check all joints from gas meter for natural orpropane/LP supply to equipment shutoff valve(see Figures 28 or 29). Apply noncorrosiveleak detection fluid to all joints. Bubbles form-ing show a leak.

4. Correct all leaks at once.

Figure 28 - Checking Gas Joints forNatural Gas Fireplace

Figure 29 - Checking Gas Joints forPropane/LP Gas Fireplace

Figure 27 - Equipment Shutoff Valve

OPOS

PO

Open

Closed

EquipmentShutoffValve

EquipmentShutoff Valve

Manual Gas Valve

Gas Meter

Equipment Shutoff Valve

Manual Gas Valve

Propane/LPSupply Tank

Pressure Testing Fireplace GasConnections1. Open equipment shutoff valve (see Figure 27).2. Open main gas valve located on or near gas

meter for natural gas or open propane/LP sup-ply tank valve.

3. Place manual ignition switch in the OFF po-sition.

4. Check all joints from equipment shutoff valveto gas valve (see Figure 28 or 29). Apply non-corrosive leak detection fluid to all joints.Bubbles forming show a leak.

5. Correct all leaks at once.6. Light fireplace (see Operating Fireplace,

pages 26 through 28). Check all other inter-nal joints for leaks.

7. Turn off fireplace (see To Turn Off Gas toAppliance, page 27 or 28).


CONVENTIONAL FIREPLACEINSTALLATIONConventional installation of fireplace involvesinstalling fireplace along with corner, face, or cabi-net mantel with hearth base accessories against awall in your home. Follow instructions below toinstall fireplace in this manner.Note: The instructions below show installationusing the cabinet mantel and hearth base accesso-ries (see Accessories, page 41. The hearth baseaccessory shown is optional for this installation.You can install fireplace and cabinet mantel di-rectly on the floor. The corner mantel accessorycannot be installed with the hearth bases. You mustinstall corner mantel directly on the floor.1. Assemble cabinet mantel, hearth base, and

trim accessories. Assembly instructions are in-cluded with each accessory.

2. When installing blower, install a properlygrounded, 120 volt three-prong electrical out-let at fireplace location if an outlet is not there.If possible, locate outlet so cabinet mantel willcover it when installed (see Figure 30).

3. If not already completed, install gas piping tofireplace location. This installation includesan approved flexible gas line (if allowed bylocal codes) after the equipment shutoff valve.The flexible gas line must be the last item in-stalled on the gas piping. See Installing GasPiping to Fireplace Location, page 17.

4. Place hearth base accessory against wall at in-stallation location. Cut an access hole in hearthtop to run flexible gas line to fireplace (see Fig-ure 30). Make sure to locate access hole so cabi-net mantel will cover it when installed. Note: Youcan secure base to floor using wood screws. Coun-tersink screw heads and putty over.

5. Route flexible gas line through access hole inhearth base.

6. Center cabinet mantel on hearth base (see Fig-ure 31). Make sure mantel is flush against wall.

7. Break off nailing flanges (see Figure 32) withhammer or pliers.

8. Place cardboard or other protective materialon top of hearth base. Carefully set fireplaceon protective material, with back of fireplaceinside mantel opening.

9. Attach flexible gas line to fireplace gas regulator.See Connecting Fireplace to Gas Supply, page 18.

10. Route electrical cord(s) through access holesin either side of fireplace with bushing. Plugelectrical cord(s) into electrical outlet.


11. Carefully insert fireplace into cabinet mantel(see Figure 33, page 21). Be careful not toscratch or damage hearth base, cabinet man-tel, or any laminate trim on hearth base. Re-move protective material from top of hearthbase and from front of fireplace (if any). Note:You can secure fireplace to hearth or floor.Open lower louver. Locate screw holes in bot-tom of base. Tighten wood screws throughthese holes and into hearth or floor.

Figure 30 - Placing Hearth BaseAccessory Against Wall

Electrical Outlet

HearthBase

Rigid Pipeand GasShutoff Valve

Gas Line Access Hole

Figure 31 - Installing Cabinet Mantel

CabinetMantel

Figure 32 - Location of Nailing Flanges(EFP33PR Shown)

NailingFlanges



Figure 33 - Inserting Fireplace IntoCabinet Mantel (EFP33PR Shown)

BUILT-IN FIREPLACEINSTALLATIONBuilt-in installation of this fireplace involves in-stalling fireplace into a framed-in enclosure. Thismakes the front of fireplace flush with wall. If in-stalling a mantel above the fireplace, you mustfollow the clearances shown in Figure 37, page22. Follow the instructions below to install the fire-place in this manner.

Actual Framing

Height 32 3/8" 33"

Front Width 34 5/16" 35 1/8"

Depth 16 11/16" 17 3/4"

1. Frame in rough opening. Use dimensionsshown in Figure 34 for the rough opening. Ifinstalling in a corner, use dimensions shownin Figure 35 for the rough opening. The heightis 33" which is the same as the wall openingabove.

2. Install and properly ground GA3555, three-prong 120 volt electrical outlet, in fireplace.Follow instructions included in kit (see Ac-cessories, page 41).

3. If not already completed, install gas piping tofireplace location. This installation includesan approved flexible gas line (if allowed bylocal codes) after the equipment shutoff valve.The flexible gas line must be the last item in-stalled on the gas piping. See Installing GasPiping to Fireplace Location, page 17.

35 1/8"

17 3/4"

33"

39 3/8"27 7/8"

55 5/8" 35 1/8"

Figure 34 - Rough Opening for Installingin Wall

Figure 35 - Rough Opening for Installingin Corner

12. Check all gas connections for leaks. SeeChecking Gas Connections, pages 18 and 19.

4. Carefully set fireplace in front of rough open-ing with back of fireplace inside wall opening.

5. Attach flexible gas line to gas supply. SeeConnecting Fireplace to Gas Supply, page 18.

6. Plug electrical cord(s) into electrical outletinstalled in step 2.

7. Carefully insert fireplace into rough opening.8. Attach fireplace to wall studs using nails or

wood screws through holes in nailing flange(see Figure 36).

9. Check all gas connections for leaks. SeeChecking Gas Connections, pages 18 and 19.

10. Install brass trim. See Assembling and Attach-ing Optional Brass Trim, page 22.

Figure 36 - Attaching Fireplace to WallStuds (EFP33PR Shown)

NailingFlanges

Nails orWoodScrews



Mantel Clearances for Built-InInstallationIf placing mantel above built-in fireplace, you mustmeet minimum clearance between mantel shelfand top of fireplace opening.

NOTICE: Surface temperaturesof adjacent walls and mantelsbecome hot during operation.Walls and mantels above the fire-box may become hot to the touch.If installed properly, these tem-peratures meet the requirementof the national product standard.Follow all minimum clearancesshown in this manual.

NOTICE: If your installation doesnot meet the minimum clear-ances shown, you must do oneof the following:• raise the mantel shelf to an

acceptable height• remove the mantel shelf

Figure 37 - Minimum Mantel Clearancesfor Built-In Installation

SuppliedFireboxHoodMust BeUsed atAll Times

Wire-meshScreen

Firebox

NoncombustibleMaterial MayProject Off thisSurface abovethe FireboxHood

Mantel Shelf

13" 16" 19" 21"

2 1/2"

6"

8"

10"

Note: All verticalmeasurements arefrom top of fireplacehood opening tobottom of mantelshelf. These minimumclearances replace anyother recommendedclearances suppliedwith your ANSI Z21.11.2approved gas logs.

Wall board or facingmaterial (abovefirebox) may be ofcombustible material,including decorativemantel ornaments orother similar projec-tions off of the facingmaterial.

FramingMaterial

ASSEMBLING AND ATTACHINGOPTIONAL BRASS TRIM(Included with Mantel Accessory)Note: The instructions below show assembling andattaching brass trim to fireplace.1. Remove packaging from three pieces of brass trim.2. Locate four brass screws, two adjusting plates

with set screws, and two shims in the hard-ware packet.

3. Align shim under adjusting plate as shown inFigure 38.

4. Slide one end of adjusting plate/shim in slot onmitered edge of top brass trim (see Figure 38).

5. Slide other end of adjusting plate/shim in slot onmitered edge of side brass trim (see Figure 38).

6. While firmly holding edges of brass trim to-gether, tighten both set screws on the adjust-ing plate with slotted screwdriver.

7. Repeat steps 1 through 6 for other side.8. Tighten trim hanging screws (#10 x 6.25

shoulder) into holes in cabinets. Place the as-sembled trim onto fireplace cabinet. Alignhanging notches on trim with hanging screwson side of fireplace (see Figure 39). Push trimfirmly into place, sliding hanging notches overhanging screws.

Figure 39 - Attaching Brass Trim toFireplace (EFP33PR Shown)

AssembledBrass Trim

Figure 38 - Assembling Brass Trim

SlotMitered EdgeSlot

Shim

Set Screws

AdjustingPlate

SideBrassTrim

Trim HangingScrews

HangingNotcheson Trim

TopBrassTrim



Figure 40 - Installing Hood to Firebox(EFP33PR Shown)

INSTALLING HOODInstall hood to top of firebox as shown in Figure40. Use 3 Phillips screws provided.

INSTALLING LOGS (CGEFP33PR/CGEFP33NR)

WARNING: Failure to positionthe parts in accordance with thesediagrams or failure to use onlyparts specifically approved withthis heater may result in propertydamage or personal injury.

CAUTION: Do not remove thewarning and instruction labelsattached to the heater base as-sembly. These markings containimportant warranty information.

CAUTION: After installationand periodically thereafter,check to ensure that no flamecomes in contact with any log.With the heater set to HI, checkto see if flames contact any log.If so, reposition logs accordingto the log installation instruc-tions in this manual. Flames con-tacting logs will create soot.

Each log is marked with a number. These num-bers will help you identify the log when install-ing. It is very important to install these logs ex-

Figure 41 - Installing Back Log (#1)

Hole inGrate Base

BackLog (#1)

Burner

actly as instructed. Do not modify logs. Only uselogs supplied with heater.1. Locate pegs on the bottom of back log (#1).

Slide these pegs into the holes in the grate basebehind the burner (see Figure 41).

2. Place the base of the middle log (#2) in the U-shaped slots of the grate base in front of theback log. The cutout on the right of the middlelog should fit over the burner (see Figure 42).Make sure the front of the middle log is rest-ing on the tabs of the grate base and the cut-out area is centered over the burner “U” bend.

3. Locate the recesses on the back of the frontlog (#3). Fit these recesses between the postsof the grate base (see Figure 43, page 24).

4. Locate the notches in the bottom of the cross-over log (#4). Place the crossover log on topof the middle log and front log. Make sure thenotches of the crossover log lines up with rect-angular knobs on top of the middle and frontlogs (see Figure 44, page 24).

Figure 42 - Installing Middle Log (#2)

BurnerTab

MiddleLog (#2)

Cutout

U-Shaped Slot “U” Bend



Figure 44 - Installing Crossover Log (#4)

CrossoverLog (#4)

RectangularKnobs

INSTALLING LOGS (EFP33PR/EFP33NR)

WARNING: Failure to positionthe parts in accordance with thesediagrams or failure to use onlyparts specifically approved withthis heater may result in propertydamage or personal injury.

CAUTION: Do not remove thewarning and instruction labelsattached to the heater base as-sembly. These markings containimportant warranty information.

Figure 46 - Installing Back Log (#2)

Figure 45 - Installing Middle Log (#1)

MiddleLog (#1)

"U"-shapedCutout inBase

Burner

Back Log(#2)

Peg

Peg

CAUTION: After installationand periodically thereafter, checkto ensure that no flame comes incontact with any log. With theheater set to HIGH, check to seeif flames contact any log. If so,reposition logs according to thelog installation instructions inthis manual. Flames contactinglogs will create soot.

Each log is marked with a number. These num-bers will help you identify the log when install-ing. It is very important to install these logs ex-actly as instructed. Do not modify logs. Only uselogs supplied with heater.1. Place the base of the middle log (#1) in the U-

shaped slots of the grate base. The cutout on theright of the middle log should fit over the burner(see Figure 45). Make sure the front of the middlelog is resting on the tabs of the grate base and thecutout area is centered over the burner “U” bend.

2. Locate pegs on the bottom of back log (#2).Slide these pegs into the holes in the grate basebehind the burner (see Figure 46).

Figure 43 - Installing Front Log (#3)

Front Log (#3)

Post

Recess

Post



Figure 48 - Installing Crossover Log (#4)

Figure 47 - Installing Front Log (#3)

GrateFingers

Notches

Front Log(#3)

CrossoverLog (#4)

Peg

Recess

INSTALLING BATTERY INTOREMOTE1. Locate slot at bottom of remote control (see

Figure 49). Firmly insert tool such as a smallscrewdriver, butter knife, or dime into the slotand lift up to remove cover.

2. Insert supplied battery into remote control.Positive and negative are marked inside re-mote control casing. Note: Remote will notfunction if battery is not installed correctly.

3. Slide tab on cover into remote housing andsnap cover back into place.

IMPORTANT: Use only A23 12 volt battery inremote. DO NOT use AAA battery.

Positive

Figure 49 - Installing BatteryNegative

Tab

Cover

RemoteControl

Slot

A23 12VoltBattery

3. Locate the notches in the bottom of the frontlog (#3). Place the front log on the grate fin-gers. Make sure the notches of the front logline up with the grate fingers (see Figure 47).

4. Place crossover log (#4) onto the peg (right)on back log (#2) and into the recess of themiddle log (#1) (see Figure 48).

Figure 50 - Installing Fireplace Screen(EFP33PR Shown)

INSTALLING SCREENInstall fireplace screen by slipping notches of fire-place screen over screws on front of fireplace (seeFigure 50).

Notches

Screws forMounting Screen


OPERATING FIREPLACEFOR YOUR SAFETY READ

BEFORE LIGHTING

WARNING: If you do not fol-low these instructions exactly,a fire or explosion may resultcausing property damage, per-sonal injury or loss of life.

A. This appliance has a pilot which lights au-tomatically when using the supplied wallswitch or remote control. If you have apower outage, the pilot may be lighted byhand with push-button piezo ignitor. Whenlighting the pilot, the following warningsmust be followed.

B. BEFORE LIGHTING smell all around theappliance area for gas. Be sure to smell nextto the floor because some gas is heavier thanair and will settle on the floor.WHAT TO DO IF YOU 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 gassupplier’s instructions.

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

C. Electric Power Outage Only: Use onlyyour hand to turn the manual overridehandle on the gas control knob. Never usetools. If the knob will not turn by hand, don’ttry to repair it, call a qualified service tech-nician or gas supplier. Force or attemptedrepair may result in a fire or explosion.

D. Do not use this appliance if any part hasbeen under water. Immediately call a quali-fied service technician to inspect the appli-ance and to replace any part of the controlsystem and any gas control which has beenunder water.

NORMAL LIGHTINGINSTRUCTIONS

WARNING: You must oper-ate this heater with the fireplacescreen in place. Make sure fire-place screen is in place beforerunning heater.

ON

OF

F

HI

LO

MANUALIGNITION

Figure 51 - Control Locations

Manual IgnitionBypass Switch(Up is forRemote Control)

ON/OFF Button

HI/LOButton

WallSwitchLED

NOTICE: During initial operation ofnew heater, burning logs will giveoff a paper-burning smell. Opendamper or window to vent smell.This will only last a few hours.

1. STOP! Read the safety information, col-umn 1.

2. Make sure equipment shutoff valve is fullyopen.

3. Wait five (5) minutes to clear out any gas.Smell for gas around heater and near floor.If you smell gas, STOP! Follow “B” in thesafety information on warnings plate. If youdon’t smell gas, go to the next step.

A. Using Supplied Wall Switch1. Set manual ignition bypass switch on the

control panel to the OFF position (auto-matic ignition position).

2. Press ON/OFF button. Hold for 6 seconds.Gas valve will open and electronic ignitionwill begin sparking to light pilot. LED willlight. Note: You may be running this heaterfor the first time after connecting to gas sup-ply or at the start of your heating season. Ifso, the ON/OFF button may need to bepressed again. This will allow air to bleedfrom gas system. If several attempts to lightpilot fail, contact a qualified service per-son or gas supplier for repairs. Until repairsare made, light and operate manually (seeManual Lighting Instructions for ElectricPower Outage, page 27).

3. When pilot flame is lit, the thermocoupleis heated by the flame. When thermocouplebecomes hot (5 to 15 seconds), main burnerwill automatically light on high flame.

4. To lower flame, push HI/LO button on wallswitch once. Note: This fireplace does nothave a pilot-only mode.

CAUTION: Do not try to ad-just heating levels by using theequipment shutoff valve.


OPERATING FIREPLACEContinued

AutomaticIgnitorElectrode

PilotBurner

Figure 52 - Pilot (Natural Gas)

Manual IgnitorElectrode

Figure 53 - Pilot (Propane/LP Gas)

AutomaticIgnitorElectrode

PilotBurner

Manual IgnitorElectrode

B. Using Hand-Held Wireless RemoteControl1. Set manual ignition bypass switch on con-

trol panel to OFF position (automatic igni-tion position).

2. Wait five (5) minutes to clear out any gas.Smell for gas around heater and near floor.If you smell gas, STOP! Follow “B” in thesafety information on warnings plate. If youdon’t smell gas, go to the next step.

3. Point remote control toward the lower frontof fireplace and push both buttons at thesame time. Hold for 6 seconds. The gasvalve will open and electronic ignition willbegin sparking to light the pilot. Note: Youwill be able to hear a clicking sound duringthis process. LED on wall switch will light.Note: You may be running this heater forthe first time after connecting to gas supplyor at the start of your heating season. If so,the ON button may need to be pressed again.This will allow air to bleed from gas system.If several attempts to light pilot fail, contacta qualified service person or gas supplier forrepairs. Until repairs are made, light and op-erate manually (see Manual Lighting In-structions for Electrical Power Outage).

4. When pilot flame is lit, the thermocoupleis heated by the flame. When thermocouplebecomes hot (5 to 15 seconds), main burnerwill automatically light on high flame.

5. To lower flame, point remote control to-ward lower front of fireplace and push HI/LO button once.Note: This fireplace does not have a pilot-only mode.

TO TURN OFF GASTO APPLIANCE

Shutting Off Heater - Wall SwitchPush ON/OFF button on wall switch once.

Shutting Off Heater - Wireless RemoteControlPoint remote control toward lower front of fire-place and push both buttons at the same time.

MANUAL LIGHTINGINSTRUCTIONS FOR

ELECTRICAL POWER OUTAGE

WARNING: You must oper-ate this heater with the fireplacescreen in place. Make sure fire-place screen is in place beforerunning heater.

NOTICE: During initial operation ofnew heater, burning logs will giveoff a paper-burning smell. Opendamper or window to vent smell.This will only last a few hours.

Because this fireplace has an electronic ignitionsystem, in the event there is a loss of power, itwill be necessary to manually light the pilot withthe piezo ignitor. After the pilot is lit, the mainburner will light automatically.1. Follow steps 1 through 3 under Normal

Lighting Instructions, pages 26.2. Set manual ignition bypass switch on con-

trol panel to ON position (manual ignitionposition). See Figure 54.

3. The pilot is attached to the rear of the frontburner. You will be able to see the pilot andspark electrode without removing thescreen or logs.

ON

OF

F

HI

LO

MANUALIGNITION

Figure 54 - Control Locations

Manual IgnitionBypass Switch(Down is ON)

MagneticManualOverrideHandle ON/OFF

Button

HI/LOButton

Piezo Ignitor

Wall Switch

Gas Valve

LEDLED


OPERATING FIREPLACEContinued

Figure 55 - Correct Pilot Flame Pattern(Natural Gas Pilot Assy Shown)

Figure 56 - Incorrect Pilot Flame Pattern(Natural Gas Pilot Assy Shown)

Thermocouple

Pilot Burner Thermocouple

Pilot Burner

Note: It is safe to operate fireplace with blowerturned off. However, the blower helps distrib-ute heated air from the fireplace.Follow installation instructions included withthe blower accessory.

INSPECTING BURNERSCheck pilot flame pattern and burner flame pat-terns often.

PILOT FLAME PATTERNFigure 55 shows a correct pilot flame pattern. Fig-ure 56 shows an incorrect pilot flame pattern. Theincorrect pilot flame is not properly heating thethermocouple. When the thermocouple cools, theheater will shut down.If pilot flame pattern is incorrect, as shown in Fig-ure 56• turn heater off (see To Turn Off Gas to Appli-

ance, page 27 or 28)• see Troubleshooting, pages 30 through 33Note: The pilot flame on natural gas units willhave a slight curve, but flame should be blue andhave no yellow or orange color.

4. Place the magnetic manual override handle,provided with this unit, on the end of thegas valve stem (see Figure 54, page 27).

5. Turn the override handle fully counter-clockwise to the PILOT position.The handle will not stop but will begin toslip when you have fully turned to the PI-LOT position.

6. While holding the valve handle in the PI-LOT position, press and release piezo igni-tor button (see Figure 54, page 27). This willlight the pilot. If needed, keep pressing ig-nitor button until pilot lights.

7. When pilot flame is lit, hold manual over-ride handle until thermocouple heats (ap-proximately 5 to 15 seconds). If pilot goesout, repeat process. If several attempts tolight the pilot fail, contact a qualified ser-vice person or gas supplier for repairs.

8. When thermocouple is heated, release over-ride handle. The main burner will imme-diately light on high flame. Adjust flamesize by turning override handle.

TO TURN OFF GASTO APPLIANCE

Shutting Off Heater When Manually LitSet manual ignition bypass switch on controlpanel to OFF (automatic ignition position). Thiswill cause the controls to shut down the fireplace.

OPTIONAL BLOWEROPERATION

Locate the blower switch by opening lower lou-ver on fireplace. Blower switch is located atlower right inside louver door.The GA3650T/GA3700T Series thermostat-con-trolled blower has a variable speed control withan ON/OFF switch. The blower will start whenthe thermostat senses a sufficient increase in fire-box temperature. The GA3700/GA3750 Seriesvariable speed blower also has an ON/OFFswitch built into the variable speed control.Note for GA3650T/GA3700T Series Only:If you are using this series blower, your fire-place and blower will not turn on and off at thesame time. The fireplace may run for severalminutes before the blower turns on. After theheater modulates to the pilot position, theblower will continue to run. The blower willshut off after the firebox temperature decreases.

MAIN BURNERPeriodically inspect all burner flame holes with theheater running. All slotted burner flame holes shouldbe open with flame present. All round burner flameholes should be open with a small blue flamepresent. Some burner flame holes may becomeblocked by debris or rust, with no flame present. Ifso, turn off heater and let cool. Remove blockage,blocked burner flame holes may create soot.


CLEANING ANDMAINTENANCE

WARNING: Turn off fireplaceand let cool before cleaning.

CAUTION: You must keepcontrol areas, burners, and cir-culating air passageways of fire-place clean. Inspect these areasof fireplace before each use.Have fireplace inspected yearlyby a qualified service person.Fireplace may need more fre-quent cleaning due to exces-sive lint from carpeting, bed-ding material, pet hair, etc.

WARNING: Failure to keepthe primary air opening(s) of theburner(s) clean may result insooting and property damage.

BURNER INJECTOR HOLDERThe primary air inlet holes allow the proper amountof air to mix with the gas. This provides a cleanburning flame. Keep these holes clear of dust, dirt,lint, and pet hair. Clean these air inlet holes prior toeach heating season. Blocked air holes will createsoot. We recommend that you clean the unit everythree months during operation and have heater in-spected yearly by a qualified service person.We also recommend that you keep the burner tubeand pilot assembly clean and free of dust and dirt.To clean these parts we recommend using com-pressed air no greater than 30 PSI. Your local com-puter store, hardware store, or home center maycarry compressed air in a can. You can use avacuum cleaner in the blow position. If using com-pressed air in a can, please follow the directionson the can. If you don't follow directions on thecan, you could damage the pilot assembly.1. Shut off the unit, including the pilot. Allow

the unit to cool for at least thirty minutes.2. Inspect burner, pilot, and primary air inlet

holes on injector holder for dust and dirt (seeFigure 57).

3. Blow air through the ports/slots and holes inthe burner.

4. Check the injector holder located at the endof the burner tube again. Remove any largeparticles of dust, dirt, lint, or pet hair with asoft cloth or vacuum cleaner nozzle.

5. Blow air into the primary air holes on the in-jector holder.

6. In case any large clumps of dust have now beenpushed into the burner repeat steps 3 and 4.

Figure 57 - Injector Holder On OutletBurner Tube

BurnerTube Injector

Holder

PILOT AIR INLET HOLEClean the pilot assembly also. A yellow tip on thepilot flame indicates dust and dirt in the pilot as-sembly. There is a small pilot air inlet hole abouttwo inches from where the pilot flame comes outof the pilot assembly (see Figure 58). With theunit off, lightly blow air through the air inlet hole.You may blow through a drinking straw if com-pressed air is not available. You may also cleanthe pilot air inlet hole by pushing a common pipecleaner completely through the air inlet hole once.

Figure 58 - Pilot Inlet Air Hole (NaturalGas Model Shown)

BurnerTube

PilotAssembly

Pilot AirInlet Hole

Ports/Slots

LOGS• If you remove logs for cleaning, refer to In-

stalling Logs, pages 23 through 25, to properlyreplace logs.

• Replace log(s) if broken or chipped (dime-sizedor larger).


TROUBLESHOOTINGNote: All troubleshooting items are listed in order of operation.

WARNING: Turn off heater and let cool before servicing. Only aqualified service person should service and repair heater.

CAUTION: Never use a wire, needle, or similar object to cleanODS/pilot. This can damage ODS/pilot unit.

POSSIBLE CAUSE

1. Battery in remote control is ei-ther missing or has low power

2. Remote control is not pointedtoward fireplace

3. Manual ignition bypass switchnot in OFF position

4. No power available to fire-place

5. Ignitor electrode not con-nected to ignitor cable

6. Broken ignitor cable7. Ignitor electrode broken8. Ignitor electrode positioned

wrong

1. No power available to fire-place

2. Manual ignition bypass switchnot in OFF position

3. Wall switch wire harness isdisconnected

1. Burner orifice clogged

2. Inlet gas pressure is too low

1. Manifold pressure is too low2. Burner orifice clogged

1. Burner orifice is clogged ordamaged

2. Damaged burner3. Gas regulator defective

REMEDY

1. Replace battery in remotecontrol

2. Point remote control towardlower front panel of fireplacewhen operating

3. Place manual ignition bypassswitch in OFF position

4. Make sure power cord isplugged into electrical outletand outlet has power

5. Reconnect ignitor cable

6. Replace ignitor cable7. Replace pilot assembly8. Replace pilot assembly

1. Make sure power cord isplugged into an electrical out-let and outlet has power

2. Place manual ignition bypassswitch in OFF position

3. Check continuity of wallswitch wire harness. Makesure plug on wall switch wireharness is fully inserted intosocket on circuit board in fire-place. Replace if necessary

1. Clean burner (see Cleaning andMaintenance, page 29) or re-place burner orifice

2. Contact local gas company

1. Contact local gas company2. Clean burner (see Cleaning and

Maintenance, page 29) or re-place burner orifice


2. Replace damaged burner3. Replace regulator

OBSERVED PROBLEM

When buttons on remote con-trol are pressed, there is no re-sponse from fireplace

When wall switch button ispressed, there is no responsefrom fireplace

Burner does not light after ODS/pilot is lit

Delayed ignition burner

Burner backfiring during com-bustion


POSSIBLE CAUSE

1. Not enough air

2. Gas regulator defective3. Residues from manufacturing

processes and logs curing

1. Not enough combustion/ven-tilation air

1. Turning control knob to HI po-sition when burner is cold

2. Air in gas line

3. Air passageways on heaterblocked

4. Dirty or partially cloggedburner orifice

1. Ignitor electrode not con-nected to ignitor cable

2. Ignitor cable pinched or wet

3. Piezo ignitor nut is loose

4. Broken ignitor cable5. Bad piezo ignitor6. Ignitor electrode broken7. Ignitor electrode positioned

wrong

1. Gas supply turned off or equip-ment shutoff valve closed

2. Control knob not in PILOTposition

3. Air in gas lines when installed

4. Depleted gas supply (pro-pane/LP only)

5. ODS/pilot is clogged

6. Gas regulator setting is notcorrect

REMEDY

1. Check burner for dirt and de-bris. If found, clean burner(see Cleaning and Mainte-nance, page 29)

2. Replace regulator3. Problem will stop after a few

hours of operation

1. Refer to Air for Combustion andVentilation requirements (page 5)

1. Turn control knob to LO posi-tion and let warm up for a minute

2. Operate burner until air is re-moved from line. Have gasline checked by local naturalgas company

3. Observe minimum installationclearances (see page 8)


1. Reconnect ignitor cable

2. Free ignitor cable if pinchedby any metal or tubing. Keepignitor cable dry

3. Tighten nut holding piezo igni-tor to base panel of log set. Nutis located behind base panel

4. Replace ignitor cable5. Replace piezo ignitor6. Replace pilot assembly7. Replace pilot assembly

1. Turn on gas supply or openequipment shutoff valve

2. Turn control knob to PILOTposition full counterclockwise

3. Continue holding control knobin full counterclockwise posi-tion. Repeat igniting operationuntil air is removed

4. Contact local propane/LP gascompany

5. Clean ODS/pilot (see Clean-ing and Maintenance, page 29)or replace ODS/pilot assembly

6. Replace gas regulator

OBSERVED PROBLEM

Slight smoke or odor during ini-tial operation

Moisture/condensation noticedon windows

Heater produces a whistlingnoise when burner is lit

When ignitor button is pressed,there is no spark at ODS/pilot(manual ignition mode)

When ignitor button is pressed,there is spark at ODS/pilot butno ignition (manual ignitionmode)

TROUBLESHOOTINGContinued


POSSIBLE CAUSE

1. Control knob not fully turnedcounterclockwise

2. Control knob not held longenough

3. Equipment shutoff valve notfully open

4. Pilot flame not touching ther-mocouple, which allows ther-mocouple to cool, causing pi-lot flame to go out. This prob-lem could be caused by one orboth of the following:A) Low gas pressureB) Dirty or partially cloggedOD S/pilot

5. Thermocouple connectionloose at control valve

6. Thermocouple damaged7. Control valve damaged

1. Metal expanding while heatingor contracting while cooling

REMEDY

1. Turn control knob fully coun-terclockwise

2. After ODS/pilot lights, holdcontrol knob for 30 seconds

3. Fully open equipment shutoffvalve

4. A) Contact local natural orpropane/LP gas companyB) Clean ODS/pilot (seeCleaning and Maintenance,page 29) or replace ODS/pi-lot assembly

5. Hand tighten until snug, thentighten 1/4 turn more

6. Replace pilot assembly7. Replace control valve

1. This is common with most fire-places. If noise is excessive,contact qualified service person

OBSERVED PROBLEM

ODS/pilot lights but flame goesout when control knob is re-leased (manual ignition mode)

Fireplace produces a clicking/ticking noise just after burnersare lit or shut off


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.

Fireplace produces unwantedodors

Fireplace shuts off in use (ODSoperates)

1. Fireplace burning vapors frompaint, hair spray, glues, cleaners,chemicals, new carpet, etc. (seeIMPORTANT statement above)

2. Gas leak. See Warningstatement above

1. Not enough fresh air is avail-able

2. Low line pressure3. ODS/pilot is partially clogged

1. Open window and ventilateroom. Stop using odor caus-ing products while fireplace isrunning

2. Locate and correct all leaks(see Checking Gas Connec-tions, pages 18 and 19)

1. Open window and/or door forventilation

2. Contact local gas company3. Clean ODS/pilot (see Cleaning

and Maintenance, page 29)


POSSIBLE CAUSE

1. Gas leak. See Warningstatement on page 33

2. Control valve defective

1. Foreign matter between con-trol valve and burner

2. Gas leak. See Warningstatement on page 33

1. Improper log placement

2. Drafts or other air currents af-fecting flame pattern

3. Air holes at burner inletblocked

4. Burner flame holes blocked

1. When heated, vapors from fur-niture polish, wax, carpetcleaners, etc. may turn intowhite powder residue

REMEDY


2. Replace control valve

1. Take apart gas tubing and re-move foreign matter


1. Properly locate logs (see Install-ing Logs, pages 23 through 25)

2. Eliminate source of draftsaround heater

3. Clean out air holes at burnerinlet. Periodically repeat asneeded

4. Remove blockage

1. Turn heater off when usingfurniture polish, wax, carpetcleaners, or similar products

OBSERVED PROBLEM

Gas odor even when wall switchand remote control buttons andswitches are in OFF position

Gas odor during combustion

Dark residue on logs or inside offireplaceNote: After removng all causesof residue deposits, completelyclean fireplace and appliancesof all residue before reusing ap-pliance.

White powder residue formingwithin burner box or on adja-cent walls or furniture


WIRING DIAGRAMNote: For proper operation, the wires must beconnected exactly as shown in wiring diagram. Seepage 35 for number key.

31 18 30 37

43

17 36

35

527

3940

20


12

2341

42

2443

39

13

3130

11

10

7

38

5

2726

6

13

15

32

14

1837

28

33

20

2119

35

36

9

17

29

34

22

25

16

8

12

4

3

40

44

ILLUSTRATED PARTS BREAKDOWNREMOTE CONTROL LOG BASE ASSEMBLY MODELSEFP33PR/NR AND CGEFP33PR/NR(CGEFP33PR SHOWN)


PARTS LISTThis list contains replaceable parts used in your fireplace. When ordering parts, follow the instructionslisted under Replacement Parts on page 38 of this manual.

KEY PART NUMBERNO. EFP33 CGEFP33 DESCRIPTION QTY.

1 109072-01 110346-02 Middle Log (#1) 12 109073-01 110346-03 Back Log (#2) 13 109074-01 110346-01 Front Log (#3) 14 109075-01 110346-04 Crossover Log (#4) 15 104286-02 104286-02 ODS Pilot (Propane/LP) 1

104285-02 104285-02 ODS Pilot (Natural) 16 098249-01 098249-01 ODS Nut 27 099387-05 099387-05 Pilot Tube 18 101973-02 101973-02 Inlet Tube 19 107572-01 107572-01 Burner Outlet Tube 110 111124-01 111124-01 Burner Retainer Spring 111 099056-19 099056-19 Burner Orifice Injector (Propane/LP) 1

099056-26 099056-26 Burner Orifice Injector (Natural) 112 102772-01 102772-01 Burner 113 M10908-2 M10908-2 Screw, Self-Tapping 214 104236-01CK 104236-01CK Painted Base Assy 115 ** ** Firebox Bottom 116 107573-01 107573-01 Valve Bracket 117 107559-02 107559-02 Gas Control Valve (Propane/LP) 1

107559-01 107559-01 Gas Control Valve (Natural) 118 102445-01 102445-01 Piezo Ignitor 119 102334-01 102334-01 Palnut Fastener 120 107562-01 107562-01 Switch and Wire Assembly 121 107685-01 107685-01 Bracket, Switch and Piezo 122 101628-03 101628-03 Flexible Connector 123 098544-01 098544-01 Wire Support Clip 124 099415-18 099415-18 Pressure Regulator (Propane/LP) 1

099415-12 099415-12 Pressure Regulator (Natural) 125 097809-03 097809-03 Fitting 3/8" Flare to 1/2" NPT 126 107687-01 107687-01 Electrode Bracket 127 103904-02 103904-02 Electrode 128 100694-01 100694-01 Screw, #6 x 1 1/4" PH 229 107560-01 107560-01 Magnetic Manual Override Handle 130 107563-01 107563-01 Wall Switch and Cord 131 107558-01 107558-01 Wall Switch Decorative Plate 132 102349-02 102349-02 Support, PCB 433 107561-01 107561-01 Wall Plate Decal 134 107564-01 107564-01 Remote Control 135 107565-01 107565-01 Receiver Assembly 136 107565-02 107565-02 Sensor Assembly 137 107566-01 107566-01 Module, Control Board 138 098271-08 098271-08 Ignitor Cable 139 107568-01 107568-01 Main Power Cable 140 098219-37 098219-37 Power Cord 141 101629-01 101629-01 1.5" Bushing 242 098303-02 098303-02 Screw, #6 243 107743-01 107743-01 Thermocouple Wire 144 107847-01 107847-01 Screw, #6019 x 1/4" 2

PARTS AVAILABLE — NOT SHOWN

19724000 19724000 Cable Tie 4901056-01 901056-01 Fitting, 3/8" NPT 1107736-01 107736-01 Wall Plate Assembly Kit 1

(Contains Items 31, 33, 44)107737-01 107737-01 Wall Switch Assembly Kit 1

(Contains Items 28, 30, 31, 33, 44)107766-01 107766-01 Battery, 12V/23A Remote 1

** Not a field replaceable part.


ILLUSTRATED PARTS BREAKDOWNFIREBOX MODELSEFP33PR/NR AND CGEFP33PR/NR

1

2

3

4

10

16

8

11

14

14

14

6

7

12

14

14

13

5

149

9

19

5

15


PARTS LISTFIREBOX MODELSEFP33PR/NR AND CGEFP33PR/NRThis list contains replaceable parts used in your fireplace. When ordering parts, follow the instructionslisted under Replacement Parts on page 38 of this manual.

KEYNO. PART NUMBER DESCRIPTION QTY.

1 101357-03 Top Outer Casing 12 ** Outer Casing 13 ** Right Front Side 14 ** Left Front Side 15 098304-01 Phillips Pan Head Screw, #10 96 104239-01CK Top Front Louver 17 101712-02 Firebox Hood 18 ** Firebox Support 29 099230-02 Shoulder Screw 410 ** Firebox Top 111 101346-01 Outer Base 112 ** Firebox Wrapper 113 101514-01 Cover 114 M11084-26 Hex Screw, #10 4515 110466-01 Bottom Louvered Door 116 101727-02 Screen Assembly 1

PARTS AVAILABLE — NOT SHOWN

101386-02 Louvered Door Hinge 2101784-01 Magnet Catch 2102307-01 Strike Plate 2

** Not a field replaceable part.


SPECIFICATIONSBtu (Variable) 20,000/33,000Type Gas Natural: (CG)EFP33NR

Propane/LP: (CG)EFP33PRIgnition Electronic (Automatic)/

Piezo (Manual)Natural Gas Propane/LP Gas

Manifold Pressure 3.5" W.C. 8.0" W.C.Inlet Gas Pressure (in. of water) Maximum 10.5" 14" Minimum* 5" 11"Shipping Weight 122 lbs. 122 lbs.* For input adjustment

SERVICE HINTSWhen Gas Pressure Is Too Low• pilot will not stay lit

• burners will have delayed ignition• heater will not produce specified heat• for propane/LP units, propane/LP gas supply

may be lowYou may feel your gas pressure is too low. If so, con-tact your local natural or propane/LP gas supplier.

TECHNICAL SERVICEYou may have further questions about installation,operation, or troubleshooting. If so, contact DESAHeating Products’ Technical Service Departmentat 1-866-672-6040. When calling please have yourmodel and serial numbers of your heater ready.You can also visit DESA Heating Products’ tech-nical service web site at www.desatech.com.

REPLACEMENT PARTSNote: Use only original replacement parts. Thiswill protect your warranty coverage for parts re-placed under warranty.

PARTS UNDER WARRANTYContact authorized dealers of this product. If theycan’t supply original replacement part(s), callDESA Heating Products’ Technical Service De-partment at 1-866-672-6040.When calling DESA Heating Products, have ready• 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 dateUsually, we will ask you to return the part to thefactory.

PARTS NOT UNDER WARRANTYContact authorized dealers of this product. If theycan’t supply original replacement part(s), callDESA Heating Products at 1-866-672-6040 for re-ferral information.When calling DESA Heating Products, have ready• model number of your fireplace

• the replacement part number


Template 1 - Relocating Wall Switch toHollow Room Wall

Template 2 - Relocating Wall Switch toSide Wall of Mantel

CU

T H

ER

E

TEMPLATES

4 3/4"4 3/4"

3 3/4"

3/8"

3 3/4"

3/8"

3/16"

3/4" 3/4"

3/8" Diameter2 Holes 1/8" Diameter

2 Holes


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ACCESSORIES

NOTICE: All accessories may notbe available for all fireplace models.

Purchase these fireplace accessories from your lo-cal dealer. If they can not supply these accessories,call DESA Heating Products at 1-866-672-6040 forinformation. You can also write to the addresslisted on the back page of this manual.

EQUIPMENT SHUTOFF VALVEGA5010For all models. Equipment shutoff valve with 1/8"NPT tap. Fits 1/2" NPT pipe.

BLOWER ACCESSORIESGA3750 & GA3650T SERIESFor all models. Manual variable control and au-tomatic thermostat variable control. A blower willincrease air flow to maximize heat distribution.

DUPLEX OUTLET KIT - GA3555(Not Shown)For all models. Use for built-in installations whenhard wiring your fireplace.

BRASS TRIM ACCESSORY(Not Shown)GA7090 - Polished BrassPT32PB - Polished BrassPT32 - BlackPT32P - PlatinumPT32B - Brushed BrassFor all models. Optional with built-in installation.Provides a finished appearance covering roughand/or unfinished mantel or wall opening, edges,etc. (Included with mantel accessory.)

INFORMATION VIDEO - 108917-01For all models. A care and maintenance video isavailable by calling 1-866-672-6040. You may alsoemail your request to [email protected].

CLEANING KIT - CCK/GCK(Not Shown)For all models. Your vent-free gas appliance re-quires regular cleaning and maintenance to pre-vent performance problems. This kit gives you thetools and instructions to make it easy to clean allcritical areas of your appliance.

CABINET MANTEL AND BASEACCESSORY WITH FIREPLACEPERIMETER TRIM

CMA300F Series - Medium Stained Oak

CMA302F Series - Cherry Stained Birch

CMA305U Series - Unfinished Birch,Ready to Stain or Paint

GMC10CF Series - Stained OakFor all models. Mantel and base feature mold-ings, fluted sides, and medallion.

CORNER MANTEL AND BASEACCESSORY WITH FIREPLACEPERIMETER TRIM(Not Shown)

CMA303U Series - Unfinished BirchFor all models. Mantel and base feature mold-ings, fluted sides, and medallion.

FIREBOX BRICK LINER - G8005SERIES (Not Shown)For all models. Ceramic fiber firebox liner addsthe look of real brick.


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NOTES

2701 Industrial DriveP.O. Box 90004Bowling Green, KY 42102-9004www.desatech.com

108117-01Rev. K03/04

NOT A UPC

108117 01

UNVENTED (VENT-FREE) GAS FIREPLACE OWNER’S OPERATION...

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