Combustion Control - Joannes AZ 2,9/L Installations- Und Wartungsanleitung

Leichtölbrenner

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Inhalt

Inhaltsverzeichnis

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In order to obtain the best combustion performance and efficiency, and for respect of the environment, checks

and adjustment of the combustion must be carried out, and with appropriate tools.

Basic values to be considered are:

—

indicates the amount of excess air during combustion; if air is increased, CO

decrease, and if combustion air is decreased, CO

—

SMOKE SCALE (Bacharach) indicates that solid un-burnt particles are present in the smoke. If N°

2 on the BH scale is exceeded the nozzle must be checked for faults and that it is adapt to the burner

and boiler (trade, type, pulverization angle).

Usually the BH scale number tends to decrease, increasing pump pressure, in this case keep the

increasing combustion levels under control.

—

SMOKE TEMPERATURE is a level which indicates heat loss through the chimney; higher the

temperature, greater is the loss and lower combustion efficiency. If the temperature is too high the

quantity of burned light oil needs to be lowered.

IMPORTANT

Existing laws in some countries can require a different adjustment to that given here and may also have

different parameters. AZ burners are designed to meet the toughest international laws on energy saving and

respect of the environment.

The release pushbutton on the equipment is the main component for accessing all the diagnostic func-

tions (activation and deactivation) as well as for releasing the control and checking device.

The release pushbutton has a multicoloured led which indicates the state of the control and checking

device during operation and when the diagnostic function is in use.

Condition

Standby, other intermediate states

Fuel preheating "on", waiting time 5s.max

Ignition stage

Correct operation

Incorrect operation, current level of

flame detector below permitted minimum

Drop in voltage

Burner lock out

Fault (see table on page 8)

Stray light before burner ignition

Rapid flashing for diagnostics

If the burner is locked out, there will be a steady red light on the lock out pushbutton.

By pressing the transparent pushbutton, the control and checking device will be released.

By pressing it for more than 3 seconds, the diagnosis stage will be activated (red light flashes rapidly).

The table below describes the causes of the lock out or fault in relation to the number of flashes (always red).

The diagnosis function is interrupted by pressing the release button for at least 3 seconds.