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IFD 244
Gas burner monitoring with an ionization electrode. For grounded systems. With restart after a flame failure.

Commissioning
➔ During operation, the 7-segment display shows the program status:
00 Start-up position
01 Waiting time
02 Safety time on start-up
04 Operation.

1. Close the manual valve!
2. Switch on the system.
3. Apply voltage to terminal 1.
4. Check the electrical installation.
5. Switch on the IFD.
➔ The display indicates 00.
➔ The IFD retains its switch position when the voltage is removed from terminal 1.
6. Start the program for the burner: apply voltage to terminal 3 – the display indicates 0 1.
➔ ϑ signal minimum ON time (terminal 3):
IFD..-3: 8 s
IFD..-5: 10 s
IFD..-10: 15 s
The times must be at least this long, otherwise the automatic burner control unit cannot monitor the burner.
➔ Gas valve V1 opens, the burner ignites and the display indicates 02.
➔ Ignition time tZ:
IFD..-3: 2 s
IFD..-5: 3 s
IFD..-10: 6 s
➔ After the safety time tSA(3, 5 or 10 s) has elapsed, the IFD signals a fault. The display indicates a blinking 02.
7. Open the gas shut-off valve.
8. Reset the IFD by pressing the Reset/Information button.
9. Start the program for the burner: apply voltage to terminal 3.
➔ The display indicates 02, the gas valve V1 opens and the burner ignites.
➔ After the safety time tSA(3, 5 or 10 s) has elapsed, the display indicates 04.
➔ The burner is in operation


Assistance in the event of mal­function
Fault Cause Remedy
The display blinks and indi­cates 01 1. The IFD has detected an incorrect flame signal without the burner having been ignited (extraneous signal)
2. Flame signal through ceramic insulation Increase value of parameter 04 in order to adapt the switch-off threshold of the flame amplifier
Start­up – no ignition spark occurs – the display blinks and
indicates 02 1.Gap between ignition electrode and burner head is too great
2. Ignition cable not contacting in the electrode adapter / ignition transformer
3. Ignition cable has short-circuited to ground
4. The ignition cable is too long
5. The ignition transformer is not connected to terminal 5 1. Adjust gap to max. 2 mm
2. Screw the cable on firmly.
3. Check installation, clean the ignition electrode
4. Shorten it to 1 m (max. 5 m)
5. Check the voltage supply to the ignition transformer.
Start­up – no gas supply the display blinks and indicates 02 1.The gas valve does not open
2. There is still air in the pipeline, for example after installation work or if the system has not been used
for a long period 1.Check voltage supply to the gas valve
2. “Purge” the pipeline and reset the system several times
Operation – flame burning burner interrupted the display blinks and indicates 04 1.Short-circuit on the ionization electrode as the result of soot, dirt or moisture on the insulator
2. Ionization electrode not correctly positioned at the flame edge
3. Gas/air ratio incorrect 1.Clean Ionization electrode and positioned correctly

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Reading off the flame signal and the parameters
Press the Reset/Information button for 2 s. The display changes to parameter 01.
Release the Reset/Information button. The display stops at this parameter and indicates the related value.
Press the Reset/Information button again for 1 s. The display changes to the next parameter. All parameters can be recalled one after the other in this way.
➔If the button is pressed only briefly, the display indicates what parameter is currently being displayed.
➔The normal program status is displayed again approx. 60 seconds after the last time the button is pressed.

Parameter list
Code Description
01 Flame signal (0–25 µA).

04 Burner switch-off threshold (2–20 µA).

12 Burner restart:0 = Immediate fault lock-out,1 = Restart.
14 Safety time during operation for gas valve (1; 2s).
22 Burner safety time on start-up (3; 5; 10 s).
81 Last fault.
82 Second to last occurring fault
83 Third to last occurring fault.
84 Fourth to last occurring fault.
.........
90 Tenth to last occurring fault.
RAJIB DAS - EHWHA A-S : WONDERFUL VIDEO OF BURNER CONTROLLER, I THINK IT IS SAME AS FOR IFD 258.
Bahalul Ahasan : Nice episode

Автомат управления горелками Kromschroder IFD 244

Демонстрация работы автомата управления горелками IFD 244
David Jimenez : Cómo se controla el tiempo de ignición. Requiero que la chispa más tiempo

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Replacing an earlier product line of the same name, the next-generation BCU 4 Series models come equipped with an ignition transformer, burner control and an embedded HMI – arranged within a compact metal housing. The units have been designed for simplified engineering, installation and start-up.

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Learn more about Honeywell Process Solutions: http://www.honeywellprocess.com

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