relevant professionals, can maintain the burners. All valves, especially ball valves, must be
slowly open or close when switching in order to prevent pressure shock in pipe.
11. Burner Maintenance
Preventive maintenance is the key to a reliable, safe and efficient combustion system. The
core of any preventive maintenance system is a list of periodic tasks. These are guidelines
only. The customer should make the final determination on maintenance intervals and
tasks to be performed while considering the working environment.
System regular safety audit must be taken out, including gas leakage check no longer than
every half a year. If necessary, the frequency of audit should be increased. Leak detection,
control functions of the equipment must be included in the scope of audit. Only Anderson
technicians or those who are been trained and qualified by Anderson, as well as other
relevant professionals, can maintain the burners. All valves, especially ball valves, must be
slowly open or close when switching in order to prevent pressure shock in pipe.
11.1 Half-year checklist
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Inspect the flame sensing devices for good condition and cleanliness.
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Check for proper air and gas pressures.
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Test all the system alarms for proper response signals.
–
Check and clean ignite electrodes.
–
Check valve motors and control valves for free, smooth action and adjustment.
–
Check for the proper operation of ventilation equipment.
–
Test the interlock sequence on all safety equipment. Manually force each interlock
to intentionally fail while at the same time check if related equipment closes or
stops as specified by the manufacturer. Test the flame safeguard by manually
shutting off the gas to the burner.
–
Test the manual gas shut off valves for proper operation.
–
Inspect and clean the combustion air blower rotor. Clean and/or replace the
combustion air blower filter if applicable.
11.2 Annual checklist
–
Leak test the safety shut-off valves and pipe for tightness of closure to make sure
no leakage.
–
Test the pressure switch settings by checking the switch movements against
pressure settings and comparing these with the actual impulse pressure.
–
Visually check ignition cable and connectors.
Be sure the burner bodies and combustor, nozzles, the ignitor and the flame sensors
are not damaged or distorted.
Anderson Thermal Soluions(Suzhou)Co. Ltd.
Anderson Thermal Solutions – ANX70 Burner Operation Manual
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