B-VENT DECORATIVE GAS FIREPLACE€¦ · the current National Fuel Gas Code, ANS Z223.1 or with the current CAN/CGA B149 Installation Codes. This appliance complies with ANS Z21.50-1998

Save this manual for future reference.

OWNER’S OPERATION AND INSTALLATION MANUALB-VENT DECORATIVE GAS FIREPLACE

®

EVGL850N (NATURAL) ELECTRONIC IGNITION

This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited by stateor local codes.This appliance is only for use with the type of gas indicated on the rating plate.This appliance is not convertible for use with other gases, unless a certified kit is used.*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer.

FOR YOUR SAFETY— Do not store or use gasoline or any other flam-

mable vapors or liquids in the vicinity of this orany other appliance.

— WHAT TO DO IF YOU SMELL GAS :• Do not try to light any appliance.• Do not touch any electrical switch;• Do not use any phone in your building.• Immediately call your gas supplier from a

neighbor’s phone. Follow the gas supplier’sinstructions.

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

— Installation and service must be performed by aqualified installer, service agency, or the gassupplier.

SAVE THIS BOOKThis book is valuable. In addition to instructingyou on how to install and maintain your appli-ance, it also contains information that willenable you to obtain replacement parts oroptional accessory items when needed. Keepit with your other important papers.

WARNING: Improper installation,adjustment, alteration, service ormaintenance can cause injury orproperty damage. Refer to thismanual. For assistance or additionalinformation consult a qualified in-staller, service agency, or the gassupplier.

NOT FOR USE WITH SOLID FUEL

CHECK LOCAL CODES PRIOR TOINSTALLATION

WARNING: If the information in these instruc-tions is not followed exactly, a fire or explosionmay result causing property damage, personalinjury or death.

2 107050

VENTED TYPE DECORATIVE APPLIANCEEVGL850N®

29"(737mm)

5/8"(16mm)

15 3/8"(391mm)

9"(229mm)

36"(914mm)

38 1/8"(968mm)

21 3/4"(552mm)

4 7/8"(124mm)

33 3/8"(848mm)

34 1/4"(870mm)

22 1/2"(572mm)

9 5/8"(244mm)

27"(686mm)

10 3/4"(273mm)Left Side

9 3/4"(248mm)

Right Side

13"(330mm)

2 3/8"(60mm)

32"(813mm)

33 13/16"(859mm)

HEARTH AREADIMENSIONS

TOP VIEW

FRONT VIEW

RIGHT SIDE VIEW

FRONT INSIDE VIEW

Figure 1 - Appliance Dimensions

Control Access Door

Outside AirKit Location(Optional)

For Use With5" ø Type B-1Vent PipeOnly

Glass Door

Control Valve (BehindControl Access Door)

3107050

OWNER’S MANUAL

Model EVGL850N is a radiant heat decora-tive gas appliance that use an electronic gascontrol valve with electronic ignition sys-tem. A 5” B-Type venting system and alisted type vent cap are not supplied but arerequired for proper operation. See ventinginstructions on pages 6 and 7.

This appliance, when installed, must beelectrically grounded in accordance withlocal codes or, in the absence of local codes,with the National Electrical Code, ANS/NFPA 70 or the Canadian Electrical Code,CSA C22.1.

The installation must conform with localcodes or, in the absence of local codes, withthe current National Fuel Gas Code, ANSZ223.1 or with the current CAN/CGA B149Installation Codes.

This appliance complies with ANS Z21.50-1998 and CSA 2.22-M98 as Vented GasFireplaces and is listed and tested by theCanadian Standards Association to theabove test standards.

INTRODUCTION

WARNING: This gas appli-ance must not be connected to achimney flue servicing a solidfuel burning appliance.

• Model EVGL850N uses NATURALGAS ONLY.

If you have any doubts as to which gas yourparticular unit is approved and tested for usewith, please check the rating plate locatedbehind the control access door (Figure 1,page 2).

BEFORE YOU BEGINBefore beginning the installation of yourappliance, read these instructions throughcompletely.

This DESA appliance and its approved com-ponents are safe when installed according tothis installation manual and are operated asrecommended by DESA. Unless you useDESA approved components tested for thisappliance, YOU MAY CAUSE A FIREHAZARD!

The DESA warranty will be voided by, andDESA disclaims any responsibility for thefollowing actions :

A) Modification of the appliance or any ofthe components.

B) Use of any component part not ap-proved by DESA in combination withthis appliance.

C) Installation and/or operation in a man-ner other than instructed in this manual.

D) The burning of anything other than thetype of gas approved for use in this gasappliance.

WARNING: Installation of thisappliance must be done by a quali-fied service person well trainedin the installation of such appli-ances. You will also need a build-ing permit from your local Build-ing and Safety Commissionerbefore installing this appliance;otherwise your insurance co. maynot cover this appliance.

This appliance is not intended tobe used as a primary source ofheat.

CAUTION: Do not connectappliance before pressure test-ing gas piping. Damage to gasvalve may result and an unsafecondition may be caused.

The appliance and it’s individual equipmentshutoff valve must be disconnected from thegas supply piping system during any pres-sure testing of that system at test pressuresin excess of 1/2 psig (3.5 kPa).

The appliance must be isolated from the gassupply piping system by closing its indi-vidual equipment shutoff valve during anypressure testing of the gas supply pipingsystem at test pressures equal to or less than1/2 psig (3.5 kPa).

For the purpose of input adjustment twopressure taps (for IN and OUT pressures)are provided on the gas control valve for testgauge connections to the appliance.

GAS RATING

Type of Gas Natural

Max. Input Rating: 21,000 Btu/hr

Manifold Pressure: 3.5 in. WC (.87 kPa)

Minimum Supply Pressure: 4.5 in. WC (1.12 kPa)

Maximum Supply Pressure: 10.5 in. WC (2.66 kPa)

Orifice Size: # 45

4 107050


CLEARANCESMinimum clearances to combustibles are:

• Back and Sidesof Outer Surround: ................ 1/2" min.

• Drywall to Sides of

Front Face (Nailing Flanges): .. 0" min.

• "B" Vent Surfaces: .................... 1" min.

• Ceiling to Opening: ........... 41 1/2" min.

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

Figure 3 - Minimum Clearances (Top View)

Figure 4 - Minimum Clearances (FrontView)

CAUTION: Do not block re-quired air spaces with insula-tion or any other material. Do notobstruct effective opening of ap-pliance with any type of facingmaterial.

1/2" MIN.(13mm)

1/2" MIN.(13mm)

0"

NailingFlange

Front Face

Left SideSurround

Back

41 1/2"(1054mm)

Min. ClearanceFrom Opening

To Ceiling

1" (25mm) Min.Clearance to “B”Vent’s Outer Pipe

0" Clearance

0" ClearanceTo Floor (On

NoncombustibleSurface)

Do Not BlockOr Obstruct

Opening

PRE-INSTALLATIONPREPARATION

To determine the safest and most efficientlocation for your appliance, you must takeinto consideration the following guidelines:

1. The location must allow for properclearances (see Clearances).

2. Consider a location where heat outputwould not be affected by drafts, air con-ditioning ducts, windows, or doors.

3. A location that avoids the cutting ofjoists or roof rafters will make installa-tion easier. Figure 2 shows a plan viewof a few common locations.

4. Do not use this appliance if any parthas been under water. Immediately calla qualified service technician to inspectthe appliance and to replace any partof the control system and any gas con-trol that has been under water.

Flush installations are recommendedwhere living space is limited or at a pre-mium, and since the space required to en-close the appliance would be located be-yond an outside wall, this would also reducethe cutting of joists, roof rafters, and such.Check local codes for any restrictions.

Projected installations can extend anydistance into the room. A projection may beideal for a new addition on an existing,finished wall.

Corner installations make use of spacethat may not normally be used and providesa wider and more efficient range for radiantheat transference.

Internal wall installations provide a dis-creet option for room separation and can alsobe ideal as an addition to an existing wall.

SELECTINGLOCATION

Figure 2 - Possible Locations for InstallingAppliance

INTERNAL WALLINSTALLATION

CORNERINSTALLATION

FULLPROJECTIONINSTALLATION

FLUSHINSTALLATION

Also, in selecting a location, the followingprecautions must be observed:

1. Do not connect this appliance to achimney system used for a solid fuelburning fireplace.

2. Install in an area providing ventilationand adequate combustion air.

3. Due to high temperatures, the applianceshould be located out of traffic andaway from furniture and draperies.

4. NEVER obstruct the front opening ofthe appliance or the flow of combus-tion and ventilation air. Keep controlcompartments accessible.

5. Do not locate in the vicinity wheregasoline or other flammable liquidsmay be stored. The appliance area mustbe kept clear and free from these com-bustible materials.

6. A hearth extension is not required withthis appliance. If one is installed, it isfor aesthetic purposes only and does nothave to meet the standard requirements.

7. If the appliance is installed on a sur-face other than wood flooring (such ascarpeting, tiles, etc.) a metal or woodpanel should be added, extending thefull width and depth of the appliance.

Drywall

2 x 4 Stud

Ceiling

Areas Indicated withan “✳” are RequiredAir Spaces. Do NotPack with Insulationor any Other Material.

5107050

OWNER’S MANUALMANTEL CLEARANCES ANDWALL DETAILSA combustible mantel shelf maybe installed amaximum 9" (229mm) from the wall andmust have a minimum distance of 18" (457mm)above the fireplace opening. Figures 5 and 6show the minimum allowable distances fromvarious combustible mantle components inrelation to the fireplace opening.

Figure 5 - Mantel Clearances - Side View(Cross Section)

Figure 6 - Side Clearances - Top View(Cross Section)

FRAMING1. Frame appliance enclosure as illus-

trated in Figures 7 and 8.

Note: If a wall covering is used to linethe enclosure, then all measurementsmust be from the surface of the covering.

2. Place the appliance into the framing andsecure it.

Note: If appliance is to be raised abovefloor level, a platform must be built tosupport the appliance.

3. Install the supply line to the applianceusing a 1/2" NPT black iron gas line ter-minating 2 5/16" above the bottom of theappliance. The gas line may be installedfrom either side or from the rear of theappliance (see Figure 15, page 9).

Figure 7 - Rough Opening for Installing inWall

Figure 8 - Rough Opening for CornerInstallation

41 7/8"(1061mm)

15"(381mm)

36 1/4"(921mm)

59 1/4"(1505mm)

29 5/8"(752mm)

21 3/16"(538mm)

CORNER INSTALLATION

15 5/8" Min.(397mm)

36 1/4"(921mm) Min.

38 1/8"(968mm) Min.

29.5°

9"(229mm)

6"(152mm)

12"(305mm)

6" Min.(152mm)

3" (76mm)

1 1/2"(38mm) Max.

1 1/2"(38mm) Max.

3" (76mm) Max.

6" (152mm) Min.

Within 12"(305mm)

18" (457mm)Min.

33°

TOP VIEW

SafeZone

CombustibleMaterials

Spacer

Header

CombustibleMaterial MayBe Used

WARNING: When finishing ap-pliance, Do not overlap combus-tible material onto the black frontface. Brick, tile, or other noncom-bustible materials may be appliedto the face provided that any gapis between the material used andthe face is caulked with a non-combustible caulking.

4. Feed flexible gas line through one of threegas line conduit sleeve and repack insu-lation to cover any openings. Prepare theincoming gas line with teflon tape or pipejoint compound and hook-up incominggas line to the flexible gas line.

Note: If 1/2" NPT black iron pipe doesnot mate with fitting at the end of flex-ible gas line, remove fitting and replacewith a 37 degree flare 3/4"-12, 1/2" NPT(female) fitting.

Outer Surround

6 107050


VENTINGINSTALLATIONA B-type venting system must be connectedto the appliance for venting to the outside ofthe building.

The following section is provided as a guideto a standard B-type vent installation.

Standing codes requirements concerning B-type vent installations may vary within yourstate, province or local codes jurisdiction.Therefore, it is recommended that you checkwith your local building codes for specificrequirements or in absence of local codes,follow Section 7.0 of the current NationalFuel Gas Code NFPA No. 54/ANS Z223.1and in Canada with CAN/CGA B149 forCategory I systems using double wall B-1vent pipe.

This gas appliance must be vertically ventedto the outdoors only and may not be termi-nated into an attic space or into a chimneyflue servicing a solid-fuel burning appliance.

This appliance may be vented through amanufactured chimney system or a masonrychimney using a B-vent adapter or a chim-ney liner system if all are listed, inspectedand approved by local codes and/or buildingauthorities.

The examples shown in Figure 9 are typicalof most B-vent installations and codes prac-tices.

Example 1: Shows the minimum allowablesystem height and lateral offset for a 60°degree or greater inclination. Code specifiesthat offsets at 60° degrees or greater areconsidered horizontal and must follow the75% percent rule for lateral to total verticalsystem height. Codes also allows only oneoffset in the total system when at 60° de-grees or greater. The total vertical height inthis example represents the minimum heightof 8 feet and therefore the allowable lateralis 6 feet when the 75% percent rule applies.If the lateral length must exceed 75% thenthe system must be sized in accordance withthe Category I venting tables.

MaintainListedClearance

12' Min.

12' Min.45°

45°6'

8'

12' Min.

60° 45°

PositionFirestopPosition

FirestopPositionFirestop

ListedVent Cap

ListedVent Cap

ListedVent Cap






Support EachLateral AtLeast EverySix (6) Feet


10'

EXAMPLE 3EXAMPLE 2EXAMPLE 1

Example 2: Shows a multiple offset eachat 45° degrees of inclination. Multiple off-sets are permitted if they do not exceed 60°degrees of inclination. The total lengths ofthe two offsets are not required to meet the75% percent allowable rule.

Example 3: Shows a single offset at 45°degrees of inclination and therefore thelateral length at 10 feet of offset does nothave to meet the 75% percent rule.

In each case the offsets must be supportedand firestops must be positioned whereverthe vent must pass through a sub-floor,ceiling joist or an attic overhang. The ventpipe must terminate vertically into a listedtype vent cap and extend a sufficient heightthrough an approved roof flashing, roofjack or a roof thimble. At all points the listedclearances must be maintained.

Figure 9 - Typical B-Vent Configuration

7107050

OWNER’S MANUALCHECKING FOR PROPERVENTINGAfter completing and checking the electrical,gas and vent connections, follow the lightinginstructions and allow the main burner to runfor approximately 5 minutes. Hold a lightedmatch or cigarette near the top edge of thewindow frame and play it along the entirelength of the window (see Figure 11). Properventing should tend to draw the flame orsmoke into the appliance. Improper ventingor escaping of spillage of burned gas, isindicated when the match flickers or goesout. Smoke from a cigarette will also tend todisperse away from the appliance.

If the appliance is found to be improperlyventing, shut it off and notify your installeror a qualified service agency to inspect theventing system.

WARNING: This appliancemust be properly connected to aB-Vent system and must not beconnected to a chimney flue ser-vicing a separate solid fuel burn-ing appliance.

NOTICE: This appliance isequipped with a vent safetyshutoff switch which will shutdown the appliance in the case ofa venting problem. Do not by-pass the vent safety switch. If theappliance should shut down, con-tact a qualified installer, serviceagency, or your gas supplier tohave the vent inspected beforeoperating.

Vent terminations must be located in accor-dance with height and proximity rules ofNFPA No. 54 or CAN/CGA B149. Theserules apply to vents at 12 in. diameter or lessand require a minimum height in accor-dance with the roof pitch and a minimum of8 ft. distance from a vertical wall or obstruc-tion (see Figure 10).

VENTINGINSTALLATIONContinued

If venting horizontally through a side wallbecomes necessary, a listed thimble ap-proved for use with B-type vent must beused. Check with your local codes beforeventing through a side wall.

Some codes areas allow the use of existingB-type vent systems if the system is at orabove the recommended diameter of theflue; in this case 5".

The flue connection must be made usinglisted B-type connectors and the existingsystem must be code inspected for damageand proper installation.

It is not recommended that this appliance becommon vented with an existing gas burn-ing appliance. However, if it becomes nec-essary to common vent this appliance, theventing system must be sized and config-ured in accordance with the common vent-ing guides Appendix G of the current Na-tional Fuel Gas Code NFPA No. 54/ANSZ223.1 and in Canada with CAN/CGA B149.

Note: Before connecting this appliance toan existing vent system or a common vent-ing system consult with your local architect,planner, or building official.

LowestDischargeOpening

ListedVent Cap

8 Ft. Min.

Roof Pitch x/12Listed Clearance

12

xListed GasVent

H (Min)HeightFrom Roof

H (Min.)Roof Pitch Ft. m

Flat to 6/12 1.0 0.306/12 to 7/12 1.25 0.38Over 7/12 to 8/12 1.5 0.46Over 8/12 to 9/12 2.0 0.61Over 9/12 to 10/12 2.5 0.76Over 10/12 to 11/12 3.25 0.99Over 11/12 to 12/12 4.0 1.22Over 12/12 to 14/12 5.0 1.52Over 14/12 to 16/12 6.0 1.83Over 16/12 to 18/12 7.0 2.13Over 18/12 to 20/12 7.5 2.27Over 20/12 to 21/12 8.0 2.44

Figure 10 - B-Vent Terminations

Check this area along the entire top edgeof the glass frame. Smoke or flame shouldbe drawn into the appliance opening.

Figure 11 - Checking for Spillage

8 107050


INSTALLATION

OPTIONAL REMOTECONTROL INSTALLATION(Model WRC)Note: If using optional wireless hand-heldremote control, the wall switch must be inthe ON position to be operational. The re-mote control then becomes the switchingmechanism for fireplace operation.

1. The WRC model receiver does not re-quire a battery. The receiver can be in-stalled by first plugging the short ex-tension cord into the fireplace recep-tacle. Then plug the receiver unit intothe extension cord. Finally plug the ig-nition module plug into the receiver unit(see Figure 12).

2. Activate the remote handset battery byremoving the insulating tab on the backof the handset (see Figure 13). The bat-tery is included pre-installed.

3. Once the battery is activated the unit isready to use.

WALL SWITCHINSTALLATION (EVGL850N)The installation of a wall switch allows youto activate the gas control valve and turn thefireplace on and off. The wall switch is to beconnected to the incoming 120 volt regularhousehold wiring that supplies the electric-ity to the fireplace. Refer to wiring diagramin this manual on page 14.

Figure 13 - Installing Battery into Back of Handset

Pull to RemoveInsulation Tab

Battery Cover

12 Volt Battery

Figure 12 - Installing the WRC Remote Receiver

FireplaceReceptacle

Remote ControlReceiver

Extension Cord

Ignition Module Plug

Back of Handset

9107050

OWNER’S MANUAL

INSTALLATIONContinued

Continued

WARNING: All gas pipingand connections must be testedfor leaks after the installation iscompleted.After ensuring that the gas valveis on, apply a soap and watersolution to all connections andjoints. If bubbles appear, leakscan be detected and corrected.

Do not use an open flame for leaktesting and do not operate anyappliance if a leak is detected.

Complete your gas installation by connect-ing incoming gas line with flexible gas line.Secure tightly with wrench but Do NOTOvertighten.

CAUTION: Compounds usedon threaded joints of gas pipingshall be resistant to the action ofLiquefied Petroleum (LP or pro-pane), and should be appliedlightly to ensure excess sealantdoes not enter the gas line.

GAS LINE HOOK-UP

Figure 14 - Equipment Shutoff ValveInstallation

Figure 15 - Routing Incoming Gas Line

WARNING: Gas line hookupshould be done by your gas sup-plier or a qualified service person.

WARNING: Before you pro-ceed, make sure your gas supplyis OFF.

11"(279mm)

4 5/8"(117mm)

5 5/8"(143mm)

1/2" NPT IncomingBlack Iron GasLine

Flexible Gas Line (1 Provided) Can BeExtended Out from 3 Sides

Typical Exterior Wall GasShutoff Installation

CAUTION: Do not kink flex-ible gas line.

DESA recommends that a black iron gasline be routed from the gas source, througha sediment trap (shown in Figure 16), andinto the appliance, Once connected throughthe appliance, a flexible gas line may beused for ease of installation to gas controlvalve (see Figure 17).

Before connecting the black iron gas line to theinside of the appliance a sediment trap must beincluded outside the appliance between thegas line and the equipment shutoff valve. Itmust extend down three (3) inches beyond thecenter of the pipe. Prepare incoming blackiron gas line with teflon tape or pipe jointcompound (Check with local building codes).

An equipment shutoff valve has been in-cluded in the appliance’s gas supply system.You may consider installing an extra gasshutoff valve outside the appliance’s enclo-sure (check with local codes) where it can beaccessed more conveniently with a keythrough a wall as shown in Figure 14.

In conformance with local codes, route a 1/2”NPT gas line towards the appliance comingin from any of the 3 directions shown inFigure 15.

KeyExtension

EquipmentShutoff Valve 3" Min.

(76mm)Side Wall

Of Appliance

Incoming 1/2" Gas LinePermitted by Local Codes

Sediment Trap(Not Supplied)

Figure 16 - Sediment Trap

EquipmentShutoffValve

Flexible Gas LineDo NOT Kink

1/2" NPTIncomingGas Line

InletPressureTap

OutletPressureTap

Note:1) Wire ConnectionsNot Shown for Clarity2) * 1/8" NPT PluggedTapping

Figure 17 - Connecting Flexible Gas Line to Electronic Valve

Red Surface IndicatesFor Propane/LP Use Only

10 107050


4

3

2

1


GAS BURNER SUPPLYHOOK-UP1. Disconnect the burner form the burner

mounting flange by removing twoscrews (see Figure 18).

2. Disconnect the pilot from the burner byremoving three screws holding the pi-lot mounting bracket (see Figure 18).

3. Rotate the back of the burner forwardand lift out of the firebox. Note: Donot damage pilot and gas line.

4. Remove the bottom refractory by lift-ing and sliding out the front (see Fig-ure 19). Note: Do not kink or damagethe flex line connector.

5. Remove the hearth pan with controlsintact by removing two screws at ei-ther side of the pan.

6. Follow steps 1,2,3,4, and 5 in reverseorder to reinstall burner assembly.

LOG & EMBER PLACEMENT1. Center the rear log on the support

bracket welded to the back of theburner. Press the log down onto thebracket (see Figure 20).

2. Align the groove cut into the bottom ofthe front log over the metal strip on theburner. Make sure the metal strip iscompletely in the groove. Also makesure the notches in the bottom of thelog align over the burner holes as shownin Figure 21.

3. Place the straight, left log piece into thenotches on the left side of the front andrear logs (see Figure 22).

4. Place the “T”-shaped, right log pieceinto the notches on the right side of thefront and rear logs (see Figure 23).

NOTICE: Do not put lava rock onburner or under burner. Placinglava rock on burner could causeperformance problems.

Figure 18 - Removing Burner Assembly

Figure 19 - Removing Bottom Refractory

Burner MountingScrews (2)

Pilot AttachingScrews (3)

1. RemoveFront ofBurner

2. Lift Refractory OverFront Edge of BurnerMounting Pan andRemove from Firebox

Next remove the ember material from thebag and flatten small amounts into piecesabout the size of a dime. Place the piecesloosely onto the exposed section of theburner ember tray, which is located on thevery front of the burner grate. This willcreate the glowing appearance as the flametouches the ember material. Do not blockburner ports by using too much ember ma-terial in one area. Sprinkle a small amount ofvermiculite provided in the separate bagover the embers to complete the effect. It isnot necessary to use all of the ember orvermiculite materials provided.

To enhance the look of the hearth you mayoptionally place the lava rock provided aroundthe front and sides of the burner. When fin-ished replace the glass door, see Glass DoorRemoval and Replacement on page 11.

Figure 20 - Installing Rear Log

Figure 21 - Installing Front Log

Figure 22 - Installing Left Log Piece

Figure 23 - Installing Right Log Piece

Rear Log

Burner Bracket

Front Log

Metal AlignmentStrip

Left LogPiece

Notches

Right LogPiece

Notches

Notches

EmberMaterial

11107050

OWNER’S MANUAL

COMBUSTION AIR KITMODEL AKGL (OPTIONAL)The outside air kit may be installed on theright side of the fireplace only. The vent canbe installed through the outside wall or aventilated crawl space. The handle to oper-ate the damper door for the outside air inletwill be located behind the burner valveaccess door when the kit is installed (seeFigure 24). Pull the handle to open or pushto close.

APPLIANCE ENCLOSUREBefore finishing the enclosure around theappliance, inspect all joints around the outersurround. Any gaps between the nailingflanges and the framing should be sealed withnoncombustible insulation or caulking.

If the appliance is mounted on a raisedplatform, it must be a continuous surfaceand not on blocks without a solid surface.This will prevent the entry of cold air bymeans of conduction through the total bot-tom of the appliance. (see Figure 25).

CAUTION: Air inlet ducts arenot to terminate in attic space.

To replace, insert top door pins into springclips located on the top face. Make sure pinsare properly secured to the clips. As youhold top portion in place, swing bottom ofdoor towards bottom face until the bottomdoor pins clear the flange and then insert thelower pins into the locating slots until seated(see Figure 26).

Note: some adjustment maybe required inorder to align door pins to clip (top) andlocating slots (bottom).

This can be done by loosening the screwsecuring both spring clip and pivot plate andsliding it to the proper location.

GLASS DOOR REMOVALAND REPLACEMENTTo remove, hold the glass door firmly athandles and evenly push straight up untilbottom pins are free from location slots(see Figure 26). Slightly swing door to-wards you. At this point, while maintain-ing glass door secured at one handle, graspthe side of glass panel for better grip andslightly pull glass door down to free toppins from spring clips.

Note: Glass door may be heavy for someindividuals. If this is the case, please requesthelp from someone else.

CAUTION: For use with glassdoors certified with the applianceonly.

CAUTION: Do not operatethe appliance with the glass doorremoved.

WARNING: Children andadults should be alerted to thehazards of high surface tempera-tures and should stay away toavoid burns or clothing ignition.Young children should be super-vised when they are in the sameroom as the appliance.

• When ordering replacement or accessoryitems please have your appliance’s modelname or number and the part number ofthe item (s) you are ordering ready. Themodel name or number for your particu-lar appliance may be found on the ratingplate located inside the appliance.

• Refer to Replacement Parts, page 17when ordering replacement parts foryour appliance.

• Repair parts or accessory items may bebought from your local representative.

• All product specifications are subject tochange without notice.

WARNING: Installation andrepair should be done by a quali-fied service person. The applianceshould be inspected before eachuse and at least annually by a quali-fied service person. More frequentcleaning may be required due toexcessive lint from carpeting, bed-ding material, pet hair, etc. It isimperative that the control com-partments, burners, and circulat-ing air system be kept clean.

Figure 24 - Air Kit Handle Location

Air Kit Handle

SideFraming

SideFraming

Caulk Here Pack Insulation

Figure 25 - Sealing Between Applianceand Framing


Spring Clip

Locating Slot

Figure 26 - Removing Glass Door

Instructions for the installation of the gas kitare included with the glass door package.Use of any other glass door assembly nottested with the EVGL850N model may con-stitute a fire hazard and will void the DESAInternational warranty. Please read and fol-low the maintenance instructions for yourglass doors as outlined below.• Never use an abrasive material to clean

the glass. Use a rag and a liquid cleaner.• Never clean the glass while they are hot.• Always operate the appliance with the

glass door in place. (If the glass is leftoff the unit while operating hot combus-tion gas may enter the room)

12 107050


TO TURN OFF GASTO APPLIANCE

1. Turn off the wall switch.2. Turn off all electric power to the ap-

pliance if service is to be performed.3. Remove the glass door.4. Open control access panel.5. Turn equipment shutoff valve clock-

wise Clockwise to “OFF”. Do not force.6. Close control access panel.7. Replace the glass door.

Figure 28 - Pilot

OPTIONAL REMOTEOPERATION

Note: The WRC receiver and hand-heldremote control kit must be purchased sepa-rately (see Accessories, page 17). Followinstallation instructions on page 8.1. Turn equipment shutoff valve to ON

position. You can now turn theburner on and off with the hand-heldremote control unit.IMPORTANT: Be sure to press theON/OFF buttons on the hand-heldremote control unit for up to 3 sec-onds to assure proper operation.

2. Press the ON/OFF button to turn theburner on and off.

OPERATINGFIREPLACE

FOR YOUR SAFETYREAD BEFORE

LIGHTING

WARNING: If you do not fol-low these instructions exactly, afire or explosion may result caus-ing property damage, personalinjury or loss of life.

A. This appliance is equipped with anignition device which automaticallylights the pilot. Do not try to light thepilot by hand.

B. BEFORE LIGHTING smell allaround the appliance area for gas. Besure to smell next to the floor becausesome gas is heavier than air and willsettle on the floor.WHAT TO DO IF YOU SMELLGAS• 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. Followthe gas supplier’s instructions.

• If you cannot reach your gas sup-plier, call the fire department.

C. Do not use this appliance if any parthas been under water. Immediatelycall a qualified service technician toinspect the appliance and to replaceany part of the control system andany gas control which has been un-der water.

LIGHTINGINSTRUCTIONS

1. STOP! Read the safety information,column 1.

2. Turn off all electric power to theappliance.

3. Turn wall switch to the OFF position.4. Remove the glass door.5. Open control access panel.6. Turn the equipment shutoff valve

clockwise Clockwise to the OFF posi-tion (see Figure 27). Do not force.

7. Wait five (5) minutes to clear out anygas. Then smell for gas, includingnear the floor. If you smell gas, STOP!Follow “B” in the safety information,column 1. If you don’t smell gas, go tothe next step.

8. Turn the equipment shutoff valvecounterclockwise C-clockwise to the ONposition. Do not force.

9. Close control access panel.10. Replace the glass door.11. Turn on all electric power to the ap-

pliance.12. Turn the wall switch to the ON posi-

tion.13. Visually locate the pilot. The ignitor

should begin to spark and the mainburner should ignite once flame ap-pears at pilot.• If lighting the appliance for the

first time each season, it may takeseveral attempts before the supplygas can reach the pilot and mainburners.

• If the appliance will not stay lit af-ter several attempts, follow the in-structions To Turn Off Gas To Ap-pliance, column 3, and call yourservice technician or gas supplier.

Figure 27 - Turning the Equipment ShutoffValve to the OFF position

Equipment Shutoff Valve

Control Valve

PilotAssembly Ignitor/Sensor

13107050

OWNER’S MANUAL

OPERATINGGUIDELINES ANDMAINTENANCEINSTRUCTIONS

WARNING: The logs can behot. Handle only when cool.

PILOT ASSEMBLYADJUSTMENTTurn the adjustment screw marked pilotclockwise to decrease or counterclockwiseto increase the flame to proper size (seeFigure 29).

Do not remove the adjustment screw.

BURNER FLAMEADJUSTMENT

Figure 29 - Correct Pilot Flame Pattern

The main burner flame should be a blue flamesomewhere between a long blue flame and ashort, sharp flame that tends to blow off theports. If flame is short, very sharp or blowing,the burner air shutter should be closed enoughto obtain a long blue flame (see Figure 30).Long yellow flame produce excess carbonmonoxide and could cause sooting.

TO SHUT OFF1. For temporary shutoff, turn off electri-

cal power to unit either by wall switchor remote control.

2. For long term shutoff, depress the gasvalve cock valve, located under the fire-box, turn clockwise to the OFF position.

Figure 30 - Burner Flame Patterns

CORRECT

INCORRECTCLOSESHUTTER

INCORRECTOPENSHUTTER

Short, Sharp,Blowing Flame

Long, Blue Flamewith Yellow Tips

Long, Uneven,Yellow Flame

3/8" Min. Thermopile

Pilot Burner

1. Upon completing your gas line connec-tion, a small amount of air will be inthe lines. When first lighting the appli-ance it will take the appliance a fewminutes to purge the air. Once purgingis complete, the pilot and burner willlight and operate as indicated in theinstruction manual. Subsequent light-ing of the appliance will not requiresuch purging.

1. When lit for the first time, the appli-ance will emit a slight odor for an houror two. This is due to the “curing” ofthe logs and “burn-in” of internal paintsand lubricants used in the manufactur-ing process.

2. Keep control compartment, logs burn-ers, and area surrounding the logsclean by vacuuming or brushing atleast twice a year. Do not vacuum themineral wool located in the front ofthe burner assembly.

3. Always turn off gas to pilot beforecleaning. For example relighting, referto the lighting instructions.

4. A qualified field service technician shouldinspect the appliance and venting systembefore use or at least annually.

5. Always keep the appliance area clearand free from combustible materials,gasoline and other flammable vaporsand liquids.

6. Never obstruct the flow of combustionand ventilation air. Keep the front ofthe appliance clear of all obstacles andmaterials.

7. Never leave children unattended whenthe appliance is operating.

WARNING: Turn off gas andelectrical power before servicingappliance. It is recommended thata qualified serviceman performthese checkups at the beginningof each heating season.

In order to properly clean the burner andpilot assembly remove the logs exposing theburner and pilot assembly.

CLEANING BURNER ANDPILOTClean all foreign materials from the top ofburner and from bottom panel below. Checkto make sure that burner orifice is clean.Visually inspect pilot. Brush or blow awayany dust and lint accumulations. If pilotorifice is plugged, disassembly maybe re-quired to remove any foreign materials fromorifice and/or tubing. When appliance is putback in service, check pilot flame patterns(see Figure 29).

MAINTENANCE

14 107050


TECHNICALSERVICEYou may have further questions about in-stallation, operation, or troubleshooting.

If so, contact DESA International’s Techni-cal Service Department at 1-800-323-5190.

You can also visit DESA International’stechnical services web site atwww.desatech.com.

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

• burner will have delayed ignition

• fireplace will not produce specified heat

• propane/LP gas supply may be low

When Gas Quality Is Bad• pilot will not stay lit

• burner will produce flames and soot

• fireplace will backfire when lit

You may feel your gas pressure is too low orgas quality is bad. If so, contact your localpropane/LP gas supplier.

WIRING DIAGRAM

ControlValve

Pilot

RobertshawM

OD

EL S

P745 IG

NIT

ION

CO

NT

RO

L

STEP DOWNTRANSFORMER

PV

GN

DP

V/M

VT

RM

VT

H

HEATLIMIT

SWITCHIG

N

EV2

SUPPLY

INCOMINGMAIN GAS

EV1

TO GAS LINE

BURNER

24V AC

120V AC

120V ACINCOMING

OR BREAKER)(FUSE BOX

OF

F

ON

(SUPPLIED)WALL SWITCH

GR

EE

N

BLA

CK

WH

ITE

120v, 60Hz, 0.7AELECTRICAL RATING:

BLACK

WHITE

GREEN

OPTIONALREMOTECONTROL

Ignitor

Hearth Pan

Connectors(Not Supplied)

Field Wire

15107050

OWNER’S MANUAL

TROUBLESHOOTING The two most common causes of a malfunctioning gas appliance are:

1. Loose wiring connections

2. Construction debris clogging the pilot and/or gas control valve filter

OBSERVED PROBLEM

Ignitor will not spark or pilot will not light

Pilot lights but will not stay lit

No gas to main burner, although wall switchand valve are set to the ON position

Frequent main burner outage

POSSIBLE CAUSE

1. No gas supply, or equipment shutoffvalve is OFF

2. Air in gas line

3. Construction debris clogging pilot orifice

4. Low gas pressure

5. Kinked pilot line

6. Control valve knob is not opening

7. No power to unit or the ignition moduleor power transformer is bad

1. Loose wiring on ignitor wire to ignitionmodule and/or poor ground to ignitionmodule

2. Pilot flame too low to sense

1. Wall switch wires defective or too long2. Sensor, valve, or ignition module is not

operating

1. Pilot flame may be too low, causingsafety pilot to “drop out”

2. Vent may be blocked or restricted

REMEDY

1. Check to see if you have gas supply andthat the equipment shutoff valve isopened

2. Repeat lighting procedure several timesto purge all air out of lines. If after re-peated attempts appliance does not lightcall for qualified service and repair

3. Remove debris and dirt, inspect andclean any other possible obstructions

4. Contact your gas supplier to check pres-sure

5. Have a qualified technician replace pi-lot line

6. Replace control valve (Refer to Replace-ment Parts, page 17)

7. Check that main power is on and that allwire connections are made correctly tothe ignition model (see Wiring Diagram,page 14). Check for 24 VAC at the sec-ondary side of the transformer. If 24 VACis present and the module does not op-erate, have the module replaced other-wise have the transformer replaced

1. Check ignitor wire connection. Refer towiring diagram (see Wiring Diagram,page 14) and/or check ground wire toignition module

2. Clean and adjust pilot burner and checkgas supply and inlet pressure to unit

Note: Have a qualified technician replacepilot assembly if broken or corroded

1. Check electrical connections2. Recheck problems 1 and 2

1. Clean and adjust pilot flame for maximumflame impingement on sensor

2. Have vent inspected for blockage ordamage

Note: For additional help, visit DESAInternational’s technical service website at www.desatech.com .

www.desatech.com

Note: Before troubleshooting the system,make sure the equipment shutoff valve is ON.

Continued

16 107050


TROUBLESHOOTINGContinued

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. Cleaningsupplies, 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.

POSSIBLE CAUSE

1. Metal expanding while heating or con-tracting while cooling

1. Fireplace burning vapors from paint, hairspray, glues, etc. (See IMPORTANTstatement above)

2. Gas leak. See Warning statement attop of page


2. Control valve defective

1. Foreign matter between control valveand burner


1. Improper log placement2. Air holes at burner inlet blocked

3. Burner flame holes blocked

OBSERVED PROBLEM

Fireplace produces a clicking/ticking noisejust after burner is lit or shut off

Fireplace produces unwanted odors

Gas odor even when control knob is in OFFposition

Gas odor during combustion

Dark residue on logs or inside of fireplace

REMEDY

1. This is common with most fireplaces. Ifnoise is excessive, contact qualified ser-vice person

1. Ventilate room. Stop using odor caus-ing products while fireplace is running

2. Locate and correct all leaks (see GasLine Hook-Up, page 9)


2. Replace control valve

1. Take apart gas tubing and remove for-eign matter


1. Properly locate logs (see Log & EmberPlacement, page 10)

2. Clean out air holes at burner inlets. Pe-riodically repeat as needed

3. Remove blockage or replace burner

www.desatech.com

17107050

OWNER’S MANUAL

ACCESSORIES

RECEIVER AND HAND-HELDREMOTE CONTROL KIT00710 (WRC)For all models. Allows the gas log heater tobe turned on and off by using a hand-heldremote control.

LOG SET - 14586 (105855-01)Top Left Log - 105856-01Top Right Log - 105857-01Bottom Rear Log - 105858-01Bottom Front Log - 105859-01

AIR KIT - 90325 (AKGL)Optional kit helps offset the negative pres-sure often existing in today's tightly con-structed homes.

ORIFICENatural - 23099 (105862-01)

REFRACTORY PIECESBack - 20938 (105864-01)Left/Right Side - 20939 (105865-01)Bottom - 20937 (105866-01)

BURNER ASSEMBLY27109 (107223-01)

Rear Log Front Log

Left LogPiece

Right Log Piece

ReceiverTransmitter

Note: Use only original replacement parts.This will protect your warranty coverage forparts replaced under warranty.

PARTS UNDER WARRANTYContact authorized dealers of this product. Ifthey can’t supply original replacement part(s)call DESA International’s Technical Ser-vice Department at 1-800-323-5190 for re-ferral information.

When calling DESA International, haveready

• your name

• your address

• model and serial numbers of your fire-place

• how fireplace was malfunctioning

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

• purchase date

Usually, we will ask you to return the defec-tive part to the factory.

PARTS NOT UNDERWARRANTYContact authorized dealers of this product. Ifthey can’t supply original replacement part(s)call DESA International’s Parts Departmentat 1-800-972-7879 for referral information.

When calling DESA International, haveready

• model number of your fireplace

• the replacement part number

REPLACEMENTPARTS

18 107050


REPLACEMENTPARTSContinued

HEAT LIMIT SWITCH14519 (105911-01)Should the limit switch need replacing, havea qualified technician replace it (see WiringDiagram, page 14). The limit switch islocated under the top door track on the righthand side.

FIXED GLASS DOORS01605 (105863-01)

IGNITION MODULE14301 (107221-01)

TRANSFORMER14129 (107222-01)

PILOT ASSEMBLYNatural (Electronic) - 27197(107220-01)

If in need of replacing, have a qualifiedtechnician replace it.

GAS CONTROL VALVENatural - 14569 (107219-01)

If in need of replacing, have a qualifiedtechnician replace it.

WALL SWITCH22180 (105742-01)Wall switch, cover plate, and wires aresupplied with the appliance. If wires needreplacing, use proper gauge.

MillivoltWires

Wall Switchand CoverPlate

19107050

OWNER’S MANUAL

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LIMITED WARRANTYB-VENT FIREPLACE

DESA International warrants this product to be free from defects in materials and components for four (4) years from the date of first purchase,provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions. To make a claimunder this warranty the Bill of Sale or cancelled check must be presented.

This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required to restore this heater to properoperating condition and an allowance for labor when provided by a DESA Authorized Service Center. Warranty part(s) MUST be obtainedthrough authorized dealers of this product and/or DESA International who will provide original factory replacement parts. Failure to useoriginal factory replacement parts voids this warranty. The heater MUST be installed by a qualified installer in accordance with all local codesand instructions furnished with the unit.

This warranty does not apply to parts that are not in original condition because of normal wear and tear, or parts that fail or become damagedas a result of misuse, accidents, lack of proper maintenance or defects caused by improper installation. Travel, diagnostic cost, labor,transportation and any and all such other costs related to repairing a defective heater will be the responsibility of the owner.

TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT;THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURATIONOF ANY AND ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR APARTICULAR PURPOSE TO FOUR (4) YEARS ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE; AND DESAINTERNATIONAL’S LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA INTERNA-TIONAL SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT, INCIDENTAL ORCONSEQUENTIAL DAMAGES.

Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or consequentialdamages, so the above limitation on implied warranties, or exclusion or limitation on damages may not apply to you.

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

For information about this warranty write:

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

www.desatech.com

INTERNATIONAL

KEEP THIS WARRANTY

WARRANTY INFORMATION

Model

Serial No.

Date Purchased

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

We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard writtenwarranty. We make no other warranty, expressed or implied.

107050-01Rev. A02/00NOT A UPC

107050 01

Documents

B-VENT DECORATIVE GAS FIREPLACE€¦ · the current National Fuel Gas Code, ANS Z223.1 or with the current CAN/CGA B149 Installation Codes. This appliance complies with ANS Z21.50-1998