Anderson ANM76 Manuel d'utilisation - Page 9

Parcourez en ligne ou téléchargez le pdf Manuel d'utilisation pour {nom_de_la_catégorie} Anderson ANM76. Anderson ANM76 13 pages.

difference before and after the burner profile plate.

Start the combustion air fan, adjust it to 100% of the flow rate, measure the

pressure difference between the combustion air and the downstream of the

burner, the design DP is 2-2.5 mbar.

Modulate through full range of burner input capacity, check the air DP and

combustion air flow.

For dry run test, first close the manual valve closest to the burner, then start the

control program, and start the dry test of the burner. Doing such a dry test can

check all the interlocking conditions in the combustion system, such as gas

pressure switches, air pressure switches, and leak test system.

Then carry out the pilot burner commissioning; procedure is carried out until

reliable ignition is achieved and the flame signal of the pilot ignition can feed back

to the flame controller with stable flame signal. During ignition test, the gas valve

before burner should be closed.

After the stable ignition is established, open the gas valve before burner.

First, setup low fire. At this time, the control system should be set in the manual

mode, which is set by adjusting to the minimum firing position. The gas volume at

this position requires the flame to propagate across sectional area of the burner,

that is, all modules will be firing. The flame detector detects the far end of the

burner. Since the flame propagate to the far end of burner will take time, the time

setting of the flame relay can be adjusted at this moment, to make sure both flame

detectors will be active to monitor flame after the delay time is over.

The relevant pressure and gas flow values need to be recorded during the

commissioning process.

10. Then set the high fire rate. This is achieved by using the manual control of the

process controller driving the modulating gas valve open step by step. Each step

of the ramp up to the maximum rate being monitored, gas flows recorded as not

to exceed the required rate. On reaching the fully open position, the main gas

pressure regulator can be set to give the required heat capacity.

11. After the high fire is set, low fire position should be checked again for fire rate and

reliable ignition. This can be cycled couple times to ensure low fire-high fire-low

fire-high fire firing stable.

12. All pressure switches shall also be tested by reducing or increasing the setpoints

until system trip. Relevant alarm procedures and control logic checked. Trip

positions recorded and normal operation setpoints selected and set.

Note:

The above procedure will be carried out by using the process air flow.

11.3 Start Burner

After all firing rate is setup, the burner gets into operation mode, the gas flow control

valve is controlled by 4-20 mA from temperature controller. The pilot burner could be

closed or run continuously according to the design requirements.

Anderson Thermal Soluions（Suzhou）Co., Ltd

Anderson Thermal Solutions – ANM76 Burner Operation Manual