Desa GA9050A-1 Owner's manual

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GA9050A-1 SERIES

MANUAL ON/OFF SAFETY VALVE/PILOT KIT

For All Single, Dual and Triple Burner

Natural and Propane/LP Gas Logs

WARNING: If the information in this manual is not

-



—       

 



-



-







The GA9050A-1 Series Manual On/Off Safety Valve/Pilot kit contains the following:

• PiezoIgnitor 097159-04

• ManualValve 901068-02

• PilotBurner(withnatural

 gasorice) 901069-01

• PiezoIgnitorElectrode 901072-01

• SteelShroud-PilotKit 901139-01

• PilotKitIncidentals 901152-01

• ControlDialInstructions 901042-01

• Brass3/8FLRx3/8MPTElbow 14264

• 18"Propane/LPBrassOrice 901065-02

• 24"Propane/LPBrassOrice 901065-03

• 30"Propane/LPBrassOrice 901065-04

• Propane/LPBrassAirMixer 901066-02

• Propane/LPPilotBurnerOrice901070-01

• Screw1/4"#8“B”pt(4ea.) 901075-01

• PilotValveControlDial 901079-01

• PilotValveDialExtension3" 901080-01

• PropaneConversionDecal 901691-01

www.desatech.com

901054-01M2

MODEL DESCRIPTION 

Natural Gas

B



Minimum Vent



(C,V,F,B)VSR18 18"SingleBurner 50,000 40,000 8"dia.

(C,V,F,B)VSR24 24"SingleBurner 60,000 50,000 8"dia.

CPVSR18 18"SingleBurner 50,000 40,000 8"dia.

CPVSR24 24"SingleBurner 60,000 50,000 8"dia.

(C,HC,V,F,B)VDR18 18"DualBurner 55,000 45,000 8"dia.

(C,HC,V,F,B)VDR24 24"DualBurner 65,000 55,000 8"dia.

(C,V,F,B)VDR30 30"DualBurner 70,000 60,000 8"dia.

(C)BFL(T,R)18 18"TripleBurner 65,000 55,000 8"dia.

(C)BFL(T,R)24 24"TripleBurner 70,000 60,000 8"dia.

*Add6"ifsafetyvalve/pilotisused

**Atdepthindicated





Gas Min. Max.

NG 5.5" 10.5"

LP 11" 13"



 PROPANE/LP

LOG SIZE      

18SR/DR 0.120 31 Blue 0.073 49 Red

24SR/DR/BFL18 0.129 30 Green 0.086 44

Orange

30DR/BFL24 0.1405 28 Yellow 0.089 43 Black

INSTALLATION



MODEL 

WIDTH*

BACK

WIDTH**

DEPTH HEIGHT

18DR/SR 28" 16" 14" 18"

24DR/SR 29

3

/

4

" 17" 15

1

/

2

" 18"

30DR 36" 27" 18" 18"

BFL18 28" 16" 15

1

/

2

" 18"

BFL24 30" 22" 15

1

/

2

" 18"

Figure 1 - Technical Information Charts

www.desatech.com

901054-01M 3

CHECK GAS TYPE

YoumustinstallthisON/OFFSafetyValve/

PilotKitifyourgastypeispropane/LP.Forad-

ditionalconvenienceandsafety,thisON/OFF

SafetyValve/PilotKitcanbeusedwithnatural

gas.Ifyouareunsureoftheproperapplica-

tion,calldealerwhereyouboughtlogset.

Ifthereplacedoesnothaveagassupply

shutoffvalve,onemustbeinstalled.



   

    





-

    

     



   

  

    

   

   

the external regulator between the



Installation Items Needed

Beforeinstallinglogset,makesureyouhave

theitemslistedbelow.

• piping(checklocalcodes)

• sealant(resistanttopropane/LPgas)

• equipmentshutoffvalve*

• testgaugeconnection*

• adjustable(crescent)wrenchorpliers

• sedimenttrap

• teejoint

• pipewrench

• exiblegasline

• 10mmDeepSocket

*A CSA design-certied equipment shutoff

valvewith1/8"NPTtapisanacceptableal-

ternativetotestgaugeconnection.Purchase

theoptionalCSAdesign-certiedequipment

shutoffvalvefromyourdealer.

INSTALLATION

Continued

Forpropane/LPunits,theinstallermustsupply

anexternalregulator.Theexternalregulator

willreduceincominggaspressure.Youmust

reduceincominggaspressuretobetween11"

and14"ofwater.Ifyoudonotreduceincom-

inggaspressure, heater regulator damage

could occur. Install external regulator with

theventpointingdownasshowninFigure2.

Pointingtheventdownprotectsitfromfreez-

ingrainorsleet.

WARNING: Never connect



   

gas is commonly known as



    

     -





     

1/2" diameter or greater to allow







Installationmustincludeanequipmentshut-

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

LocateNPTtapwithinreachfortestgauge

hookup.NPTtapmustbeupstreamfromlog

set(seeFigure3,page4).

IMPORTANT:Installequipmentshutoffvalve

in an accessible location.Theequipment

shutoff valve is for turning on or shutting off

thegastotheappliance.

Figure 2 - External Regulator on

Propane/LP Supply Tank with Vent

Pointing Down

ExternalRegulator

VentPointingDown

Propane/LP

SupplyTank

www.desatech.com

901054-01M4

Checkyour building codesfor any special

requirementsforlocatingequipmentshutoff

valvetoappliance.

ApplypipejointsealantlightlytomaleNPT

threads.Thiswillpreventexcesssealantfrom

goingintopipe.Excesssealantinpipecould

resultinacloggedburnerorice.

    

sealant that is resistant to liquid



Werecommendthatyou installa sediment

trapin supply line as shown in Figure 3.

Locatesedimenttrapwhereitiswithinreach

forcleaning.Installinpipingsystembetween

fuelsupplyandheater.Locatesedimenttrap

wheretrappedmatterisnotlikelytofreeze.

Asedimenttraptrapsmoistureandcontami-

nants.Thiskeepsthemfromgoingintologset

controls.Ifsedimenttrapisnotinstalledoris

installedwrong,logsetmaynotrunproperly.

INSTALLATION

Continued

Natural Gas

FromGasMeter

(5"W.C.**to10.5"

W.C.Pressure)



FromExternal

Regulator

(11"W.C.**to14"

W.C.Pressure)

Figure 3 - Gas Connection

*PurchasetheoptionalCSAdesign-certied

equipmentshutoffvalvefromyourdealer.

**Minimuminletpressureforpurposeofinput

adjustment.

3"Minimum

SedimentTrap(Optionalfor

Propane/LPInstallation)

CSADesign-Certied

EquipmentShutoffValve*

ApprovedFlexibleGasHose

(ifallowedbylocalcodes)

Tee Joint

PipeNipple

Cap

Figure 4 - Equipment Shutoff Valve

Open

Closed

Equipment

Shutoff Valve

CHECKING GAS CONNECTIONS



and connections for leaks after





WARNING: Never use an



-









PIPING SYSTEM

Test Pressures In Excess Of 1/2 PSIG



1. Disconnectlogsetanditsindividualequip-

mentshutoffvalvefromgassupplypiping

system.

2. Capoffopenendofgaspipewhereequip-

mentshutoffvalvewasconnected.

3. Pressurizesupplypipingsystembyeither

opening propane/LP supply tank valve

forpropane/LPgasoropeningmaingas

valve located onor neargas meterfor

naturalgas,orusingcompressedair.

4. Checkalljointsofgassupplypipingsystem.

Applynoncorrosiveleakdetectionuidto

alljoints.Bubblesformingshowaleak.

5. Correctallleaksatonce.

6. Reconnectlogsetandequipmentshutoff

valvetogassupply.Checkreconnected

ttingsforleaks.

Test Pressures Equal To or Less Than



1. Closeequipmentshutoffvalve(seeFig-

ure4).

2. Pressurizesupplypipingsystembyeither

opening propane/LPsupplytankvalve

forpropane/LPgasoropeningmaingas

valve located onor neargas meterfor

naturalgas,orusingcompressedair.

www.desatech.com

901054-01M 5

INSTALLATION

Continued

Figure 5 - Checking Gas Joints

(Natural Gas Only)

Gas Meter

EquipmentShutoffValve

Propane/LP

SupplyTank

EquipmentShutoffValve

Figure 6 - Checking Gas Joints

(Propane/LP Gas Only)



VALVE/PILOT KIT ASSEMBLY

Natural Gas Installation

1. Thread the gas control valveonto the

burner inlet tting(see Figure7). Use

threadsealantonthemalethreadsofthe

burnerinlettting.Holdthe burnerinlet

ttingwithawrenchtopreventovertight-

eningtheconnectiontotheburner.Make

surethecontrolrodisfacingthefront(see

Figure7).

BurnerInletFitting

(containingorice)

GasControl

Valve

Burner

Pan

Assembly

Figure 7 - Installing Gas Control Valve

Control

Rod

Figure 8 - Gas Control Valve with

Thermocouple and Pilot

Thermocouple

andLine

Pilotand

Line

GasControlValve

PilotFlow

Adjustment

Screw

Figure 9 - Installing Inlet Fitting and Gas

Connector Tube

GasControlValve

GasInlet

Fitting

Gas

Connector

Tube

InletOpening

3. Checkalljointsfromgasmeterfornatu-

ralgas(Figure5)orpropane/LPsupply

(Figure6)toequipmentshutoff valve.

Applynoncorrosiveleakdetectionuidto

alljoints.Bubblesformingshowaleak.

4. Correctallleaksatonce.

2. Attachthepilotgaslinetothepilotoutlet

ofthegascontrolvalveandtighten.Con-

nectthethermocoupletotherearofthe

gascontrolvalve.SeeFigure8.Donot

overtighten.Ifusingpropane/LPgas,see

Changing Pilot Orice,page6.

3. Installtheinletttingintotheinletopen-

ingofthegascontrolvalve(seeFigure

9).Usethreadsealantonthemalepipe

threads.

4. Place the burner pan assemblyin the

center of the replaceoor. Make sure

thefrontofpanfacesforward.

www.desatech.com

901054-01M6

5. Thread the gas supplyadaptor to the

replacegassupplypipe.Adjusttomost

convenientposition.

6. Installthegasconnectortubetothegas

supply adaptor. Carefullyshape tube

andattachtogasinlettting(seeFigure

9,page5).Becarefulnottocausekinks

intube.

7. Testforleaksfollowinginstructionsinyour

hearthkitowner’smanualunderthesec-

tion Testing Burner for Leaks.

8. Retightenandadjustthelocationofthegas

controlasnecessary.Thegascontrolshould

belevel,withthecontrolrodtothefront.

9. Installcovertoburnerpanusingscrews

provided.

10.Installthermocouple,pilot,andignitoronto

valvecoverasshowninFigure10.Use

theprovidedscrews.

11.Pushthecontrolrodextensionontothe

“D”shapedcontrolrodthroughthecenter

holeinthecover.

12.Installthepositiondecalandcontrolknob

making sure to align the marks with the

correctstoppositionsofthegascontrol.

Pilotpositionwillallowtheknobtopush

inabout1/2".Alignthedecalsinthepilot

position.

INSTALLATION

Continued

Piezo

Ignitor

Control

Rod

Extension

Screw

Valve

Cover

Control

Knob

Figure 10 - Installing Cover, Control

Knob, and Piezo Ignitor

Thermocouple

Ignitor

Pilot

Figure 12 - Burner Inlet Fittings with

Injectors



GAS



PROPANE/LP



Injectorfor

Natural Gas

Injectorfor

Propane/LP

Gas

Figure 11 - Remove Burner Inlet Fitting

BurnerInlet

Fittingfor

Natural Gas

WARNING: You must use a





PROPANE/LP GAS CONVERSION

Toconvert topropane/LP gas, the burner

inletttingandpilotoricemustbereplaced.

Thepropane/LPburnerinletttingissupplied

alongwiththreecolorcodedoricespre-sized

foreach sizelogset.The propane/LPpilot

oriceis also includedand can beused to

convertallsizelogsets.Youmustinstallthe

correctsizeoriceintothepropane/LPburner

ttingusinga10mmdeepsocketdriver.



1. Removethenaturalgasburnerinlettting

fromtheburnerpanassembly(seeFigure

11).DONOTremovetheoricefromthis

tting.Thepropane/LPburnerinlettting

includedinthehardwarekithas6holes

andmustbeusedtoreplacethenatural

gasinlettting(seeFigure12).

2. Besuretousethecorrectoriceforyour

appliance. The hardware kit included

withthisappliancecontainsoriceswith

acone-likeshape.Theoricesarecolor

codedforeachrespectivesizelogsetas

indicatedbymodelnumber(see Figure

1,page2).

3. Usea10mmdeepsocketornutdriver

tothreadthenewpropane/LPoriceinto

the propane/LPburnerinlettting(see

Figure12).

www.desatech.com

901054-01M 7

4. Usingthreadsealant(resistanttotheac-

tionofpropane/LPgas)onlargerendof

tting,screwtheburnerinletttingthrough

holeand intoburner manifold.Tighten

usingawrench.

5. Followsteps1through12underNatural

Gas Installation,page5.



Thepilotisprovidedwithanaturalgasorice

installed.Forpropane/LPgasyoumustremove

itandreplaceitwithanpropane/LPorice.The

hardwarekitcontainsanpropane/LPorice

witharedstripeforconvertingthepilot.

1. Gentlyloosenandremovethepilotlinecon-

nectionfromthebracket(seeFigure13).

2. Replacetheinjector(seeFigure13)with

thepropane/LPpilotinjectorwiththered

stripe.

3. Replaceandtightenthepilotlinetothe

bracket.

4. Continuewithstep3underNatural Gas

Installation, page5.

Note:Followtheinstructionsinyourhearth

kitowner’smanualunderthesection,Testing

Burner for Leaks.



Afterinstallation is complete and the unit

hasbeen ignited, itmaybe necessary to

adjustthepilot.Useasmallat-headscrew-

drivertoturntheowadjustmentscrewon

themanual controlvalve(see Figure14).

Turn the screw counterclockwise to allow

moregastooworclockwisetorestrictgas

ow.Becarefultolimittheturnsto2

1

/

2

from

thefullyclosedposition.Furtherturningcan

resultingasleakingattheadjustmentscrew

andthepilotamesizewilldiminish.The

properpilotowwillresultinastrongblue

amebetween1/2"and1"long.

INSTALLATION

Continued

Figure 13 - Installing Propane/LP Pilot

Orice

O

F

P

I

L

O

T

O

N

PilotInjector

PilotFlow

Adjustment

Screw

Figure 14 - Pilot Flow Adjustment Screw

www.desatech.com

901054-01M8

Pilot

Thermocouple

Figure 16 - Thermocouple and Pilot



TO APPLIANCE

1. Turncontrolknobclockwise to the

PILOTposition.

2. Pressinandturncontrolclockwise

totheOFFposition.

3. Closeequipmentshutoffvalve(seeFigure

4,page4).

OPERATING APPLIANCE





1.

STOP!Read the safety information, in

theowner’smanual includedwithyour

hearthkit.

2. Makesureequipmentshutoffvalveisfully

open.

3. Pressinandturncontrolknobclockwise

totheOFFposition.

4. Waitve(5)minutestoclearoutanygas.

Then smellfor gas aroundlogset and

nearoor.Ifyousmellgas,STOP!See

SafetyinformationandAir For Combus-

tion and Ventilation, inyour hearth kit

owner’smanual.Ifyoudon’t smellgas,

gotothenextstep.

5.

Turn control knob counterclockwise

tothePILOTpositionandpress

in.Keepcontrolknobpressedinforve

(5)seconds.

Note: You may be running this log set

for the rst time after hooking up to gas

supply. If so, control knob may need to be

pressed in for 30 seconds or more. This

will allow air to bleed from gas system.

6. Withcontrolknobpressedin,pushdown

andreleaseignitorbutton.Thiswilllight

pilot.Thepilotisattachedtotherearof

thefrontburner.Ifneeded,keeppressing

ignitorbuttonuntilpilotlights.

Note: If pilot does not stay lit, contact a

qualied service person or gas supplier

for repairs. Until repairs are made, light

pilot with match.

7. Keepcontrolknobpressedinfor30sec-

ondsafterlightingpilot.After30seconds,

releasecontrolknob.

Note: If pilot goes out, repeat steps 3

through 7.

 Ifcontrolknobdoesnotpopupwhenre-

leased,contactaqualiedserviceperson

orgassupplierforrepairs.

8. Turncontrolknobcounterclockwise

totheONposition.Burner shouldlight.

If burner does not light, call a qualied

serviceperson.

9. Toleavepilotlitandshutoffburnersonly,

turncontrolknobclockwise

to the

PILOTposition.

Note: Follow the Troubleshooting section

in the owner’s manual included with your

hearth kit.

Ignitor

Pilot

FROM"PILOT"POSITION

SLIGHTPUSHTO

TURNOFF

PULLPUSH

TOLIGHT

ON

FROM"PILOT"POSITION

SLIGHTPUSHTO

TURNOFF

PULLPUSH

TOLIGHT

FROM"PILOT"POSITION

SLIGHTPUSHTO

TURNOFF

PULLPUSH

TOLIGHT

ON OFF

On

Off

OFF

Figure 15 - Ignitor and Control Knob

ControlKnob

www.desatech.com

901054-01M 9

NOTES

_____________________________________________________

______________________________________________________

_____________________________________________________

______________________________________________________

_____________________________________________________

______________________________________________________

901054-01

Rev.M

08/08

DESAHeating,LLC

2701IndustrialDrive

BowlingGreen,KY42101

www.desatech.com

1-866-672-6040

WARRANTY

KEEP THIS WARRANTY

DESA HEATING, LLC LIMITED WARRANTIES

New Products

Standard Warranty:DESAHeating,LLCwarrantsthisnewproductandanypartsthereoftobefreefrom

defectsinmaterialandworkmanshipforaperiodofone(1)yearfromthedateofrstpurchasefroman

authorizeddealerprovidedtheproducthasbeeninstalled,maintainedandoperatedinaccordancewith

DESAHeating,LLC’swarningsandinstructions.

Forproductspurchasedforcommercial,industrialorrentalusage,thiswarrantyislimitedto90daysfrom

thedateofrstpurchase.



Limited Warranty:DESAHeating, LLCwarrantsfactoryreconditionedproductsandanypartsthereof

tobefreefromdefectsinmaterialandworkmanshipfor30daysfromthedateofrstpurchasefroman

authorizeddealerprovidedtheproducthasbeeninstalled,maintainedandoperatedinaccordancewith

DESAHeating,LLC’swarningsandinstructions.

Terms Common to All Warranties

Thefollowingtermsapplytoalloftheabovewarranties:

Alwaysspecifymodelnumberandserialnumberwhencontactingthemanufacturer.Tomakeaclaimunder

thiswarrantythebillofsaleorotherproofofpurchasemustbepresented.

Thiswarrantyisextendedonlytotheoriginalretailpurchaserwhenpurchasedfromanauthorizeddealer,

andonlywheninstalledbyaqualiedinstallerinaccordancewithalllocalcodesandinstructionsfurnished

withthisproduct.

Thiswarrantycoversthecostofpart(s)requiredtorestorethisproducttoproperoperatingconditionand

anallowanceforlaborwhenprovidedbyaDESAHeating,LLCAuthorizedServiceCenteroraprovider

approvedbyDESAHeating,LLC.Warrantypartsmustbeobtainedthroughauthorizeddealersofthisprod-

uctand/orDESAHeating,LLCwhowillprovideoriginalfactoryreplacementparts.Failuretouseoriginal

factoryreplacementpartsvoidsthiswarranty.

Travel,handling,transportation,diagnostic,material,laborandincidentalcostsassociatedwithwarranty

repairs,unlessexpresslycoveredbythiswarranty,arenotreimbursableunderthiswarrantyandarethe

responsibilityoftheowner.

Excludedfromthiswarrantyareproductsorpartsthatfailorbecomedamagedduetomisuse,accidents,

improperinstallation,lackofpropermaintenance,tampering,oralteration(s).

ThisisDESAHeating,LLC’sexclusivewarranty,andtothefullextentallowedbylaw;thisexpresswarranty

excludesanyandallotherwarranties,expressorimplied,writtenorverbalandlimitsthedurationofany

andallimpliedwarranties,includingwarrantiesofmerchantabilityandtnessforaparticularpurposetoone

(1)yearonnewproductsand30daysonfactoryreconditionedproductsfromthedateofrstpurchase.

DESAHeating,LLCmakesnootherwarrantiesregardingthisproduct.

DESAHeating,LLC’sliabilityislimitedtothepurchasepriceoftheproduct,andDESAHeating,LLCshall

notbeliableforanyotherdamageswhatsoeverunderanycircumstancesincludingindirect,incidental,or

consequentialdamages.

Somestatesdonotallowlimitationsonhowlonganimpliedwarrantylastsortheexclusionorlimitationof

incidentalorconsequentialdamages,sotheabovelimitationorexclusionmaynotapplytoyou.

Thiswarrantygivesyouspeciclegalrights,andyoumayalsohaveotherrightswhichvaryfromstatetostate.

Forinformationaboutthiswarrantycontact:

Model(

locatedonproductoridenticationtag

) _____________________________

SerialNo.(

locatedonproductoridenticationtag

) __________________________

DatePurchased __________________________

Keepreceiptforwarrantyverication.

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Desa GA9050A-1 Owner's manual

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