Carlin 102CRD 99FRD - Adjustment and Verification

Model 99FRD, 100CRD & 102CRD oil burners — Instruction manual
Carlin part number MN99102 Rev. 08/20/08
– 22 –
5. Adjustment and verication
Adjust burner using test instruments
1. Operateburnerfor15minutesbeforemakingnaladjustmentsusing
test equipment.
2. Checkforleaksinfuelpiping.
Inspect fuel piping system for leaks. Repair any leaks to avoid
fire hazard from oil leakage or combustion problems due to
air infiltration into oil.
3. Inspectame
• Look atame through appliance combustion chamberobservation
port.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inspecting
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.
1. Inserttestprobeintoventsampleopeningtosampleueproducts.
2. Withthe99FRD,100CRD,or102CRDburnerequippedwiththecor-
rectoilnozzle,headsettingandairbandsetting,theueproductswill
usuallycontainbetween11½%and12½%CO
2
(5.9%and3.8%O
2
)
andzero(Bacharach)smoke.
3. Usecombustiontestequipmenttoverifythatburnerisproperlysetup
foryourinstallation,withintherangelistedinTable3.Applianceswith
positivepressureinthechambermayrequireawiderairopening.See
appliance instructions for details. Verify/adjust settings by testing with
instruments.
a. Checksmoke.ItshouldbezeroontheBacharachscale.
b. Settheapplianceuedamperorbarometricdraftregulatorsothedraftor
pressureintheventcomplieswiththeappliancemanufacturer’sinstruc-
tions.
 Heatingunitsdesignedfornaturaldraftoperationarenormally
setforaslightlynegativepressure,usually–0.01to–0.02
inchesw.c.draftatthecombustionchambertestport.Ap-
pliances designed for forced draft (positive pressure in the
chamber) must be air-tight to prevent exfiltration of harmful
combustion products. Failure to properly set draft for the
appliance could result in severe personal injury or death.
c. CheckpercentofCO
2
(orO
2
). Fine tune the burner, if necessary, by slightly
adjusting the head position for more or less air.
d. Rechecksmoke(shouldbezero)andueorchamberpressure/draft(adjust
if necessary and retest).
 Allinstallationsshouldbecheckedafteronetotwoweeksof
operation to ensure the appliance/burner units are operating
correctly.
Figure 20 Maximum firing rate decreases as overfire
pressure increases
Firing against positive overfire pressure
1. Burner ratingmaximuminputs arebasedon operationwithzero to
slightlynegativepressureoverre,typically0.01to0.03inchesw.c.
2. Whenaburnerisappliedtoanappliancethatoperateswithahigher
pressure overfire, the maximum firing rate decreases because the
maximumavailableairowfromtheburnerblowerdecreases.
3. ReadthegraphbelowinFigure20tondthemaximumburnerring
rate at positive overfire pressures.
 Donotapplya99FRD,100CRDor102CRDburneratapres-
surehigherthanlistedinFigure20unlesstheapplication
has been factory pretested.