Sequence: illuminated phase dark phase Flash-Code dark phase for 10 sec for 0.6 sec for 1.2 sec Error diagnosis Error message Flash-Code Possible fault lock out within lock out safety time safety time no flame establishment stray light stray light during monitored phase, detector may be faulty air proving switch air proving switch in closed position contact welded air proving switch air proving switch does not time-out close within specified time air proving switch air proving switch opens opened during start or operation loss of flame loss of flame during operation Flash-Code for manual lock out anual/external lock out (see also 3. Therefore the following sequence is performed which is repeated as long as the unit is not reset. Every 10 seconds the illumination is interrupted by a flash code, which indicates the cause of the error. = short pause _ = long pause _ _ 1.2 Lock-out diagnoses In case of a failure the LED is permanently illuminated. current 1.5 µa Sensitivity for stray light 0.4♚ Ionisation probe insulation Probe - earth greater than 50 MΩ stray capacity Probe - earth less than 1000 pf cable lenght control box defect Description = short pulse = long pulse. 20 A during 0.5 sec Direct lockout after a loss-of-flame during operation Air proving switch 1 working contact 4 A, 230V Stray light monitoring 5 sec Sensitivity (operation) 1 µa Min. B alarm indicator 1.0 A, cos ϕ 0.4 total load 5.0 A, cos ϕ 0.4 max. 4 motor 2.0 A, cos ϕ term solenoid valves 1.0 A, cos ϕ term. TECHNICAL DATA Operating voltage 220 / 240 V ( %) 50 Hz ( ±5%) or 110 / 120 V ( %) 60 Hz ( ±5%) Fuse rating 10 A fast, 6 A slow Power consumption ca. The is funstionally compatible to MMI 810 and MMI Please note: Is the to be used to replace the MMI 810 or 810.1, care has to be taken to make sure the air proving switch (LW) is wired between terminals 4 and 7 and not like on the MMI between 5 and 7. The wiring base S98 is equipped with spare- and extraterminals and allows together with a variety of cable entry points utmost flexibility of electrical wiring.
#SATRONIC DMG 970 PLUS#
The reset switch for reset / remote lockout with its built-in LED for displaying the information system plus the central fixing screw are placed on top of the housing. These plus the lockout- and reset circuit are well protected inside a flame resistant, plug-in type plastic housing. CONSTRUCTIONAL FEATURES Microprocessor, electronic components, output relais and flame amplifier are placed on two printed circuit boards. This low-voltage protection works not only during start-up but also permanently during operation. In this way, the safety of the system is not put at risk by a drop in the mains voltage. If the mains voltage drops below the permitted level, operation is interrupted and the control box automatically prevents the start sequence from being repeated.
The control box is designed for maximum safety in case of fluctuations in the voltage supply. The lock out cause is stored in such a way that it can be retrieved even after a power failure. The built-in information system not only provides a continuous monitoring of the actual state of the box (very helpful especially for monitoring the start-up phase) but also informs about the cause of a possible lock out. The microprocessor- based programming sequence ensures extremely stable timings independent of voltage variations, ambient temperature and/or switch-on cycles. The use on direct air heaters according DIN 4794 is also possible.
The control box is approved and certified according the relevant European standards. 1 A Honeywell Company Gas Burner Safety Control For 2-stage forced draught and combi oil/gas burners Possible flame detectors: - Ionisation probe - Infrared flicker detector UV flame sensor UVD 971 EN1C-0128SZ20 R1102 INTRODUCTION The burner control box controls and supervises power burner for gas and dual fuel.
0 kommentar(er)
