Owner's manual

Model 702G/O Advanced gas/oil burners — Instruction manual
Carlin part number MN702GO Rev. 06/23/14
– 20 –
Where appliance instructions differ from this manual, follow the appliance instructions.
Adjustment procedure, summary
Step 1: Sethigh-reoilairowby adjustingthecombustion head.See
detailsfollowing.
Step 2: Adjusttheairdamperforlow-reoil.Seedetailsfollowing.
Step 3: Adjustthedampermotorendswitch(onlyifnecessary).Seedetails
following.
Step 4: Setgaspilotoperation.Seedetailsfollowing.
Step 5: Sethigh-regasowtomatchhigh-reair.Seedetailsfollowing.
Step 6: Adjustthebutteryvalvelinkagetomatchlow-regastolow-re
air.Seedetailsfollowing.
Step 7: Verifyoperationofburner,appliance,andcontrols.
Use test instruments
1. Use combustiontestequipment andanaccurate manometeror draft
gaugetocorrectlysettheburnerasrequired.
2. Overrepressuremustnotexceedtheappliancemanufacturer’srecom-
mendations.Theburnermustneverberedatanoverrepressuremore
than0.60inchesw.c.
 Whentheoverrepressureispositive,themaximumburner
ringrateisreduced.Theringrateis also reduced for
altitudeshigherthan2000feetabovesealevel.Seepage3
forratinginformation.Ensurethattheoilnozzleselectedis
correcttherequiredringrate.
3. Adjusttheburnerfuelandairsettingsusingthefollowingprocedures.
Whenadjustmenthasbeencompleted,theCO
2
(orO
2
)shouldbewithin
therangesinTable6,atbothlowreandhighre.
Table 6 Allowable values of CO
2
and O
2
Fuel
CO2 O2
Minimum Maximum Maximum Minimum
#2 Fuel Oil 10.5 % 12.5 % 6.6 % 3.9 %
Natural Gas 8.5 % 10.0 % 6.2 % 3.6 %
Propane 9.5 % 11. 2 % 6.0 % 3.5 %
8. Adjust the burner using test instruments
 ThesettingsgiveninSection7areinitialsettings
only. You must use test instrumentstocheck
combustion,andadjusttheburnerasnecessary,
followingtheproceduresgiveninthefollowing
pagesofthismanual.Failuretoproperlyadjustthe
burnercanresultinseverepersonalinjury,death
orsubstantialpropertydamage.
Start the burner (ringonoil)
 Donotstarttheburnerifthecombustionchambercontains
oiloroilvapor.
1. TurnserviceswitchOFF.
2. Performinspectionsandcheckoutsonpage18.
3. Verifyburnerissetaccordingtopage19.
4. Sliponeendofa3/16-inchI.D.clearplastichoseovertheendofthefuel
unitbleedvalve,theotherendintoacontainer.Thenopenbleedvalve.
5. SetburnerfuelselectorswitchtoOIL.
6. Setthermostat(operatingcontrols)tocallforheat.
7. TurnserviceswitchON.
8. Burnermotor,fuelunitandblowershouldturnon.
9. Bleedtheoillineuntiltheplasticlineisfreeofbubbles;thenanother15
secondslonger.(Shouldtheprimarycontroltimingcausealockoutdur-
ingpurging,restarttheburnerfollowingtheprimarycontroldatasheet
instructions.)
10.
Closethebleedvalve.Theburnershouldcyclethroughthesequence
givenintheprimarycontroldatasheet.
11.Shouldcontrol/burnerfailtooperatecorrectly,shutburneroffimmediately
andcheckburnersettingsandfuelsupplies.
12.Operateburnerfor15minutesbeforemakingnaladjustmentsusing
testequipment.
13.Checkforleaksinfuelpiping.
 Inspectfuelpipingsystemforleaks.Repairanyleaksto
avoidrehazardfromoilleakageorcombustionproblems
duetoairinltrationintooil.
14.Inspecttheame
• Lookattheamethroughtheappliancecombustionchamberobserva-
tionport,ifavailable.Theameshouldbewell-denedandshouldnot
impingeonanyappliancesurface.(Ifyoumakeairchangeslater,inspect
theameagain.)
Do not attempt to conrm combustion simply by inspect-
ing the ame visually. You must use combustion test
instruments.Failuretoproperlyverify/adjustcombustion
couldallowunsafeoperationoftheburner,resultinginsevere
personalinjury,deathorsubstantialpropertydamage.
15.Insertthecombustionequipmenttestprobeintoaventsampleopening
tosampleueproducts.
 Allinstallationsshouldbecheckedafteronetotwoweeksof
operationtoensuretheappliance/burnerunitsareoperating
correctly.