Type: Honeywell 02235 TF834 E.3 Automatic burner control unit NEW
The TF 834.3 or TF 836.3 automatic oil burner control unit controls and monitors forced draught burners with or without oil preheater, with an oil consumption of up to 30 kg/h (tested and approved to EN 230). A special contact in the burner control unit bridges the release thermostat of the oil preheater as soon as the burner is in operation and a flame signal is given. This prevents interruption of the operating sequence due to falling oil temperature (e.g. high throughput). In the event of a fault shutdown of the burner, the oil preheater is also de-energised.
- 1-stage operating mode
- no post-ignition time
- undervoltage safety according to EN 230
Operating voltage: 220 / 240 V (-15... +10%) 50 Hz (40 - 60 Hz)
Back-up fuse: 10 A fast, 6 A slow
Power consumption: approx. 5 VA
Max. Max. load per output:
- Kl. 3 1.5 A, cos ? 0.2
- Kl. 4 4 A, cos ? 0.4
- Kl. 5 0.5 A, cos ? 0.4
- Kl. 6 4 A, cos ? 0.4
- Kl. 7 0.1 A, cos ? 0.4
- Kl. B 0.5 A, cos ? 0.4
total 5 A, cos ? 0.4
Pre-purge time approx. 12 sec.
Pre-ignition time approx. 12 sec.
Post-ignition time: none
Safety time: 10 sec.
Waiting time after fault switch-off: approx. 60 sec.
Flame sensor:
- MZ 770 S radial and axial exposure Light sensitivity better than 6 lux
- IRD 1010 radial or axial exposure
- UVD 970 axial exposure
Sensor current operation: min. 30 µA
Weight with base: 0.25 kg
Installation position: any
Protection class: IP 44
Approved ambient temperature for device and flame sensor: 0º C... +60º C
Approved according to Euro standards: EN 230
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