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TF834 TF836 Fuel Burner Controller Brand: Satronic - Honeywell Origin: United States Product Introduction TF834.3/836.3 - Oil Burner Safety Control For 1- or 2-stage oil power burners up to 30ka/h capacity with or without oil preheater and intermittent operationsFlame detection: Photoresistor M7 770 S . Infrared-flicker detector IRD 1010 UV solid state sensor UVD 970 A special contact in the control unit short-circuits the thermo-switch of the oil preheater as soon as the bumer is operatingand the fame sianal is present. Therefore interuption of the bumer due to decreasing oil temperature (e.q. in case of high oilflow) can be prevented. If the control box goes into lock-out mode, the oil preheater power supply is also disconnected INTRODUCTION The gas burner automatic safety control MMI9621 controlsand monitors blown gas- and combined burners of anynominal thermal load (tested and certified according toEN 298). If an air damper unit is connected, a 2-stage operation withtwo fuel valves or a modulating operation with one fuel valveis possible. Various types and model designations differentiate theautomatic safety controls with respect to the programmetimes, as well as with regard to differing national standardsThe control box type MMI 962.1 Mod.23 can be usedinstead of the types MMI 812 Mod.23 or MMI 812.1Mod.23. CONSTRUCTIONAL FEATURES The automatic control is housed in a non-inflammabletransparent, plug-in type plastic case and contains:Synchronous motor with speed reducer gears as thedrive for the switching cam Switching cam with informative programme display incolour 12 times cam assembly for controlling the programmesequence Plug-in type circuit boards with the electronic components The following important indicating - and operating elementsare located on the front panel of the automatic control:- Illuminated pushbutton for indication of malfunctionsand reset Programme display in colourScrew for central mounting |