Anderson VFS82 Operation Manual - Page 11

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8. Burner Start, Commissioning and Stop

For the first time burner startup, then you must follow these steps:

1. Reset the System:

Close the automatic fuel shut-off valves and the fuel cocks.

2. Set High Fire Combustion Air Pressure Drop:

Start the combustion air fan.

Set the air control damper to produce the desired high fire pressure drop across the

burner. Air pressure drop should be read as a differential pressure between the wind box

pressure test port and the chamber. See the datasheets for the combustion air pressure

drop versus air flow curves.

3. Verify Air Settings:

Make sure that all the settings are still the same after you cycle the system several times

between high fire and low fire. Check the air proving switch and adjust if necessary.

4. Ignition pilot burner:

Run the system only with ignition pilot burner, adjust combustion air and gas pressure

to get stable flame signal. Please refer to relative pilot burner datasheet.

5. Main burner ignition:

Make sure the combustion air fan is running. Adjust the main gas regulator to supply the

minimum pressure required; see the datasheets for gas pressure drop information.

Verify that the main gas control valve is at its minimum open position. Light the pilot.

Open all manual fuel shut-off valves. Initiate the ignition sequence through the flame

safety. Check that the pilot and main burner flames are ignited. Measure the gas

pressure drop, taken between the burner pressure taps as indicated on the datasheets

and a tap in the combustion chamber. The gas flame should be pale blue color set inside

the refractory combustion block. Low fire setting finished.

6. Adjust High Fire:

Drive the main gas control valve to high fire. Measure the gas and air pressure drops at

high fire and compare to the appropriate chart on the datasheets. If the maximum input

is not achieved or is too high, an adjustment can be made to the main gas control valve

or the main gas pressure regulator can be adjusted higher or lower. The main gas flame

should be slightly blue periphery and a somewhat yellowish center at high fire, refer to

datasheets for flame length estimates.

7. Verify Settings:

Once the high and low fire conditions have been set, cycle the burner from high to low

fire several times to check repeatability of settings. Shut down the burner and relight to

ensure automated pilot and main flame ignition operates correctly. Check all safety

interlocks and limits to ensure proper operation.

8. Stop Procedure:

Drive combustion air and gas valves to low fire position. Shut off main gas supply valves

and pilot. Leave combustion air at low fire until combustion chamber and block are

cooled to under 80°C; once cooled, shut off combustion air fan. Shut off all manual valves

Anderson Thermal Soluions（Suzhou）Co., Ltd

Anderson Thermal Solutions – VFS82 Burner Operation Manual