Reznor ULSA 035(EC) - Maintenance

1701ULSA(EC)--EN, p. 23/30
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12.MAINTENANCE
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Attention
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Itisrecommendedthatmaintenanceiscarriedoutatleastonceayear.Morefrequentservicing
mayberequireddependentupontheenvironmentalcircumstanceswheretheairheateris
installed.Regularinspectionisnecessary,especiallyindirtyareas,toassesstheservicing
frequency.
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Removalofservicepanel
1. Removedoorlockatupperandunderside.
2. Liftthepanelholdingitatthebottom.
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Substitutionofcombustionairfan
1. Turnoffthemaingassupply.
2. Settheroomthermostatsothereisnoheatdemand.
3. Waituntiltheaircirculationfanhasstoppedrunning.
4. Checkthattheelectricalsupplyisturnedoff.
5. Removetheservicepanel(see‘removalofservicepanel’).
6. Disconnecttheplugs
fromthecombustionairfan.
7. Removetheboltsbetweenthecombustionairfanandthe(bent)gassupplytube.Removethegasket.
8. Removethefixingscrews(ortheassemblyincaseofaULSA075/100EC)connectingtheairintakerestriction
andthecombustionairfan.
9. The
combustionairfancannowberemoved.
10. Removeallthedustfromthecombustionairfanwithasoftclothorbrush.
11. Checkthatthemotorandtheturbineareundamaged.
12. Replaceallpartsinreverseorder.
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SubstitutionofbulbthermostatLC3
1. Waituntiltheaircirculationfanhasstoppedrunning.
2. Beforestarting,ensurethattheelectricalsupplyisturnedoffandlocked.
3. Removetheservicepanel(see‘removalofservicepanel’).
4. RemovethebracketbyusingtheLC3.
5. Disconnecttheelectricalconnectionsonthebulbthermostat.
6.
Removethefixingscrewsconnectingthebulbthermostattotheelectricalwiringpanel.
7. Thewholebulbthermostatisnowlooseandcanberemoved.
8. Replaceallpartsinreverseorder.
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SubstitutionofbulbthermostatLC1
1. Removethethermocoupleviatheairoutletsideoftheairheater.
2. FollowtheaboveinstructionsNo6to8forthebulbthermostatLC3.
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Cleaning&substitutionofburner
Whencleaningandre‐installingtheburner,itisnecessarytomakeuseofakitspeciallydesignedforULSA/ULSAEC
units.Useonlykitswhichareapprovedbythemanufacturerandwhichareappropriatefo ryourappliance.
Usekitnumber3625192025forunitULSA(EC)type025–
Forallothertypes,usekitnumber3625192035.
Alwaysconsultyourdistributorattheslightestdoubt.
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