Control Box TF 834 Mod. 3

Description

Control Box Resideo Satronic TF 834 Mod. 3

For 1- or 2-stage oil power burners up to 30kg/h capacity with or without oil preheater and intermittent operations.

Flame detection:
- Photoresistor MZ 770 S
- Infrared-flicker detector IRD 1010
- UV solid state sensor UVD 970

APPLICATION RANGE

The TF 834.3 or TF 836.3 oil burner safety control boxes are suitable to control and monitor oil power burner up to 30 kg/h capacity (approved and certified according to EN230).
A special contact in the control unit short-circuits the thermo-switch of the oil preheater as soon as the burner is operating and the flame signal is present. Therefore interruption of the burner due to decreasing oil temperature (e.g. in case of high oil flow) can be prevented.

If the control box goes into lock-out mode, the oil preheater power supply is also disconnected.

CONSTRUCTIONAL FEATURES

The control box circuitry is protected by a flame resistant, transparent plastic housing. It incorporates the thermomechanical, temperature compensated timer, flame check and reset circuits.

Manual reset from lockout is provided by a push button with an integrated lockout signal lamp. A central fixing screw locks the control box to the wiring base. The wiring base and control box have a positive plug-in arrangement, making it impossible to achieve an incorrect connection between the
two parts. A variety of cable entry points provides utmost flexibility of electrical wiring.

The TF 834 are fully compatible with the TF 734 and TF 734-2 respectively. Using the TF 83X.3 as a replacement, the flame detector IRD 911 must be replaced by its compatible type IRD 1010.
An optional extension button (item no. 70601) compensates for height differences.

TECHNICAL DATA

Operating voltage 220/240 V (-15..+10%) 50 Hz (40-60Hz)
Fuse rating 10 A fast, 6 A slow
Power consumption ca. 5 VA
Max. load per output
- terminal 3 1.5 A, cos ϕ 0.2
- terminal 4 4.0 A, cos ϕ 0.4
- terminal 5 0.5 A, cos ϕ 0.4
- terminal 6 4.0 A, cos ϕ 0.4
- terminal 7 0.1 A, cos ϕ 0.4
- terminal B 0.5 A, cos ϕ 0.4
total load 5.0 A, cos ϕ 0.4
Pre-purge time ca. 12 sec.
Pre-ignition time ca. 12 sec.
Post-ignition time TF 834.3 ca. 20 sec.
TF 834 E.3 none
TF 836.3 ca. 2-4 sec
Delay time to oil valve 2 ca. 20 sec. (TF 836.3)
Lockout safety time 10 sec.
Reset time from lockout ca. 60 sec
Flame detector: MZ 770 S side-on and end-on viewing
Light sensitivity MZ 770 S > 6 Lux
IRD 1010 side-on or end-on viewing
UVD 970 end-on viewing
Sensor operating current min. 30 µA
Weight incl. wiring base 0.25 kg
Mounting position any
Protection class IP44
Recommended ambient operating temperature for control and flame detector 0°C...+60°C
approved and certified according to European standards EN 230