6.7 Serviceandmaintenanceschedule
(28000–48000hours)
Servicelevel A B A B A D
Operatingtimeinhours 28000 32000 36000 40000 44000 48000Servicework
Calendar time in months 42 48 54 60 66 72
Filter inspection,filter replacementif necessary, operational checks XXXXXX
Preventiveinspection,safetychecks XXX
Capacitymonitoring,rotor inspection XXX
ReplacementofHTCO Thermostats
1)
X
Inspectionofelectricheater/ steamheater X
Replacementof drive beltandbeltlock X
Replacementofrotordrivemotor X
Inspectionoffans(impellers,motors,bearings) X
Operational checkof electricpanel andcontrol system XXX
Calibrationofhumidity control equipment, sensors,valves, SSR XXX
Calibrationoftemperature controlequipmentandsensors XXX
Replacementofrotorseals X
1)
Notrequiredforunits with steam reactivation heater.
Table 6.2 Service and maintenance schedule (28000–48000 hours)
NOTE!
Maintenance schedule restartsagainaftermaintenancetypeD.
40
Serviceandmaintenance
190TEN–1089–G1412