Glow-worm Ultracom2 sxi - Page 40

0020112600_02-10/12-Glow-worm
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MAINTENANCE
 
Priorto,duringservicingandafteranymaintenanceorchanged
parts,thefollowinginspectionmustbecarriedout.
• Theintegrityoftheuesystemandueseals.
• Theintegrityoftheappliancecombustioncircuitandrelevant
seals.
• Avisualinspectionoftheamequality.
• Electrical,gasandwaterconnections.
• Systempressure.
• Thecombustionperformance,refertothefollowing
procedure.
• Theoperationalgasinletpressureandgasrates,referto
thecommissioningsectionparagraph12.5.Correctanyfault
beforecontinuing.
Combustion check and setting the air/gas ratio
• Removethefrontcasingpanel,seediagramaboveand
hingedownthecontrolbox.Takingcarenottotouchany
internalcomponents,proceedasfollows:
• ConnecttheCO2combustionanalysertotherelevanttest
point,seediagramopposite.
24
2
3
1
2B
2A

 
 
 
 
 
 
i
To verify the maximum gas rate CO2 setting the
appliance must be checked at the maximum rate.
• Activatethetestmode"P.01"andsetthevalueto100in
ordertoforcetheburneratP.max.Seechapter"Specic
adjustment►Appliancetechnicalsettingsandparameterlist
►Testmodes".
• Waitapproximately5minutestoreadastabilisedCO2value.
• Checkthatthevalueiswithintherangespeciedintablein
the“check”column.

   

9.2±0.3% 9±0.2% 0.004

9.2±0.3% 9±0.2% 0.004

9.2±0.3% 9±0.2% 0.004

   

10.3±0.3% 10.1±0.2% 0.004

10.3±0.3% 10.1±0.2% 0.004
Ifthecombustionreadingisnotwithintheacceptablevalues
andtheintegrityofthecompleteuesystemandcombustion
circuitsealshavebeenveriedandtheinletgaspressure(and
gasrate)havebeenveried,then,itwillnecessarytoadjustthe
combustionrateoftheappliance.
i
Adjustment is made by turning the throttle an ⅛
of a turn, waiting 1 minute to allow the appliance
to stabilise before checking or making further
adjustments.
• Removethestickercoveringthe“throttle”adjustmentscrew,
iftted.
• Rotatethe“throttle”(1)(anti-clockwisetoincrease),tothe
requiredCO2,refertopreviousdiagramandthe“Setting”
columninthetable.
• Whenyouhavenished,presstheOn/Offbuttontoexitthe
testmodes.
• Removetheanalyserprobeandreplacethecaponthe
samplingpoint,replacethecontrolsfascia,andthefront
casingpanel.
i
Remember to replace the sample point cap on
completion of the test.
 
• Checkthegasratesasdescribedinthecommissioning
section.
 
Ifitisnotpossibletoachievetherequiredresultsforeitherthe
combustionorgasrates,itwillbenecessarytocompleteafull
serviceoftheapplianceandthenrepeatthecombustioncheck
procedure.