Anderson VFC86 Посібник з експлуатації - Сторінка 9

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– Be sure all components of the spark ignition system are installed and functioning

properly.

– Be sure all valves are installed in the proper location and correctly oriented relative

to the flow direction.

9.6 Prepare for adjustment

After installation of the burner system components is complete, the following steps

should be followed in order to prepare for adjustment:

– Set the air flow switch so that it drops out at 50% below the maximum pressure of

the process air.

– Set the low gas pressure switch at 50% below the gas pressure measured at the

inlet to the main gas valve train.

– Set the high gas pressure switch at 50% above the gas pressure measured at the

inlet to the main gas valve train.

– Try to ignite the burner before the purge and other timers have finished their

cycles. Make sure that the flame monitoring system indicates a flame failure.

– Trip out the pressure switches and other limit interlocks. Make sure that the main

gas valve train closes.

– If the simulated limit condition or the simulated flame fault cannot be responded at

the specified fault response time, the fuel system needs to be turned off to correct

the existing problems.

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.

– Inspect the flame sensing devices for good condition and cleanliness.

– Check for proper air and gas pressures.

– Test all the system alarms for proper response signals.

– Check and clean igniter electrodes.

– Check valve motors and control valves for free, smooth action and adjustment.

– Check for the proper operation of ventilating equipment.

– Test the interlock sequence on all safety equipment. Manually force each interlock

to intentionally fail while at the same time noting if related equipment closes or

stops as specified by the manufacturer. Test the flame safeguard by manually

shutting off the gas to the burner.

Anderson Thermal Soluions（Suzhou）Co., Ltd

Anderson Thermal Solutions – VFC86 Burner Operation Manual