Azbil AUD300C1000 - Chapter 6. MAINTENANCE and INSPECTION; Periodic Inspection

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WARNING
Before removing, mounting, or wiring the AUD300C, be sure to turn off the AUD300C and all con-
nected devices. Failure to do so might cause electric shock.
Do not touch the AUD300C or the F or G terminals of the burner controller immediately after the
power to the burner controller has been turned OFF.
The F and G terminals are still electrically alive for 1 minute after the power has been turned OFF,
causing an electric shock hazard.
CAUTION
Only authorized personnel who have the technical skill about the combustion equipment and flame
safeguard control must carry out the mounting, wiring, inspection, adjustment, and maintenance
work.
The service life of the tube unit and shutter unit components of the AUD300C is a maximum of
3 years. To ensure operational safety, be sure to replace them with new ones within this service life
period. For replacement, use the AUD Maintenance Kit (AUD60A1000), which includes the tube and
shutter units.
Periodic inspection n
(1) Turn OFF the power to the burner controller.
(2) Clean the monitoring window and monitoring pipe periodically.
Remove this unit from the monitoring pipe, and clean the inside of the monitor-
ing pipe and/or the lens with a cloth rag.
(3) To check the function of the tube unit, perform the safety shut-off test periodi-
cally.
For details about safety shut-off test, refer to;
the user's manual for the AUR300C, No. CP-SP-1142E.
user's manual for the AUR350C, No. CP-SP-1175E.
user's manual for the AUR450C, No. CP-SP-1264E.
(4) Adjust the burner so that it is operated at its optimal operating level recom-
mended by the burner manufacturer.
Frequency of maintenance and inspection ●
Inspection contents Inspection frequency
Contamination of monitoring window and monitoring
pipe, or loose screw
Once a month or more
Safety shut-off test Once a month or more
Measurement of flame voltage Once a month or more
Pilot turn down test Once a year or more
Handling Precautions
If the burner shut-off operation may cause a serious accident, perform the •
inspection more frequently.
If the burner manufacturer provides specific instructions about the mainte-•
nance and inspection, always strictly observe them.
Chapter 6. MAINTENANCE AND INSPECTION