Kromschroeder IFD258-3/1WI (84621615) burner control unit

Kromschroder IFD 258-3/1WI 84621615 automatic burner control unit is designed to ignite and oversee industrial gas burners without capacity limits directly. Its fully electronic design enables swift response to diverse operational demands, making it suitable for frequent cycling. It can be applied to both atmospheric and forced draught burners in multi-burner setups where centralized control handles pre-purge and monitoring. It accommodates modulating or stage-controlled burners and is compatible with grounded and ungrounded systems. Program status and flame signal intensity are directly readable, with a potentiometer for switch-off threshold adjustment. In case of flame failure, the response mode—immediate lock-out or restart—is selectable via a switch.

Kromschroder 84621615 IFD 258-3/1WI gas control unit technical data

• Ionization or UV control
• Immediate fault lock-out or restart in the event of flame failure, switchable
• Safety time on start-up: 3 s
• Safety time during operation: 1 s
• Mains voltage: 230 V AC, 50/60 Hz
• Integrated electronic ignition
• Max. number of operating cycles: 250,000
• Max. number of operating cycles: reset button: 1000, mains button: 1000
• Sensor voltage: approx. 230 V AC
• Sensor current: > 2 µA
• Switch-off threshold can be adjusted between 2 and 20 µA
• Max. sensor current for ionization control < 25 µA
• Ambient temperature: -20 to +60°C (-4 to +140°F)
• Relative humidity: no condensation permitted
• Enclosure: IP 54 pursuant to IEC 529
• Overvoltage category III pursuant to EN 60730
• Cable gland: M16
• Installation position: any
• Weight: 841 g

Krom schroder 84621615 IFD 258-3/1WI burner control unit features

Kromschroder IFD 258-3/1WI 84621615 automatic burner control unit is designed for continuous operation of directly ignited burners without capacity limits, complying with EN 746-2 standards. It offers a switchable function for immediate fault lock-out or restart after flame failure. Flame control is facilitated through either a UV sensor or an ionization sensor. Additionally, the unit provides a display for monitoring program status and flame signal intensity.

Kromschroder 84621615 IFD 258-3/1WI burner control wiring

1. Kromschroder 84621615 IFD 258-3/1WI automatic gas firing device is suitable for hard wiring only. Do not reverse phase and neutral conductor. Different phases of a three-phase current system must not be installed at the IFD.
2. No voltage may be connected to the valve and ignition outputs.
3. Do not use unused terminals as support terminals.
4. The signalling contacts for operating and fault signals do not meet the requirements for safety extra low voltage (SELV/PELV).
5. The burner should be adequately grounded. Incorrect wiring and an insufficient ground connection can cause damage to the equipment during single-eletrode operation.
6. In the case of single-electrode operation, only ignition transformers of type TZI or TGI may be used. The use of pulse-spark or high-frequency ignition devices is not permitted.