Crown Bermuda Installation Manual

XII Service and Maintenance

On a continuous basis:

1) Keeptheareaaroundtheboilerfreeandclearfromcombustiblematerials,gasoline,andotherammablevaporsand

liquids.

2) Keeptheareaaroundtheboilerandboilerroomventilationopeningsclearofobjectswhichmightobstructtheowof

combustionandventilationair.

On at least a weekly basis:

Forboilersequippedwitha#67lowwatercut-off,blowdownthelowwatercut-offfollowingtheinstructionsontheyel-

lowstickeradjacenttothelowwatercut-off.Duringthisblowdown,thelowwatercutoffshouldshutdowntheburners.Ifit

doesnotthelowwatercut-offshouldbereplacedimmediately.

On an annual basis:

1) Turnoffelectricalpowerandgassupplytotheboiler

2) Inspecttheuepassagesforsignsofblockage.Ifthereisanycarboninthecombustionchamberortheuepassages,

cleantheheatexchangerbeforeproceedingfurther.Seethecleaningprocedurebelow.

3) Removeanydebrisfoundinthecombustionchamber,beingcarefulnottodisturbcombustionchamberinsulation.

4) Removeallburners,notingthelocationofthepilotmainburner.Ifburnersshowsignsofdeterioration,theyshouldbe

replaced(somediscolorationaroundtheburnerportsisnormal).Cleantheburnersbyrstbrushingtheportswithasoft

bristlebrushandthenvacuumingoutanydebristhroughtheventuriopening.

5) Inspectthepilotassembly. Cleananydepositsfoundontheelectrodeandgroundingstrap.Theidealgapbetweenthe

electrodeandthegroundstrapis1/8”.Inspecttheporcelainforcracksorotherdeterioration.Replacepilotassemblyifdete-

riorationisfound.

6) Inspectthecombustionchamberinsulationfordeterioration.

7) Inspecttheignitioncableinsulationforcracksorotherdeterioration.Ifdeteriorationisfound,replacecable.

CAUTION

LABELALLWIRESPRIORTODISCONNECTIONWHENSERVICINGCONTROLS.WIRINGERRORS

CANCAUSEIMPROPERANDDANGEROUSOPERATION.VERIFYPROPEROPERATIONAFTER

SERVICING.

8) Reinstallburners,beingcarefultoputthepilotburnerbackinitsoriginallocation.

9) Inspectallboilerwiringforlooseconnectionsordeterioration.

10) Inspecttheventsystem:

• Makesurethattheventsystemisfreeofobstructions.

• Makesurethatallventsystemsupportsareintact.

• Inspectjointsforsignsofcondensateoruegasleakage.

• Inspectventingcomponentsforcorrosionorotherdeterioration.Replaceanydefectiveventcomponents.

11) Inspecttheboilerandsystemforleaks.

12) Inspectthelowwatercut-off:

• ForHydrolevelCG400Alowwatercut-offs-Removeandinspecttheprobeforscaleandsedimentbuildup.Clean

anysedimentorscalefromtheprobewithascouringpadorsteelwool.ConsulttheHydrolevelCG400manualfor

anyadditionalmaintenanceinformation.Testthelowwatercut-offbeforeplacingtheboilerbackintoservice.