Satronic MMI 813.1 Manual 

MMI 813.1 Gas burner automatic safety control For 2-stage forced draught gas burners Designated for an air damper control Possible flame detectors: - Ionization probe - Infrared flicker detector For external resetting, the remote reset device FR 870 (art. No. 70700) can be utilized. (Refer to documentation 750). Automatic Control MMI 813.1 Model 23 Waiting time at start approx. tw 9 Maximum reaction time of air pressure monitor tlw 10 Pre-purge time tv1 34 Air damper open signal during pre-purge tlk 36.5 Pre-ignition time tvz 3 Ignition time, overall tz 6 Ignition safety time ts 3 Delay time terminal 6 tv2 6 TECHNICAL DATA Operating voltage 220 / 240 V (-15... +10%) 50 Hz (50 - 60 Hz) Differing frequency results in a proportional deviation of the time. Rating fuse max. 10 A rapid, 6 A slow Power consumption 10 VA Max. current per output term. 3 2A, cos ϕ 0.2 term. 4, B 2A, cos ϕ 0.4 term. 5, 6, C 1A, cos ϕ 0.4 Total load 5A, cos ϕ 0.4 Amplifier sensitivity 1 µA Minimum required Ionization current 5 µA Flame detector cable max. 20 m cable length Air pressure monitor 1 working contact 4 A, 220 V Waiting time for malfunction remedy none Running time air damper for 90° max. 15 sec. Flame detector - Ionization probe - Infrared flicker detector IRD 1020 Weight, incl. base 350 g Mounting position any Insulation standard IP 44 Admissible ambient temperature for controller and flame detector -20° C... +60° C Classification acc. EN 298 BTLLXN INTRODUCTION The gas burner automatic safety control MMI 813.1 controls and monitors blown gas- and combined burners of any nominal thermal load (tested and certified according to EN 298). Together with an air damper motor, a 2-stage burner with 2 fuel valves, a 2-stage operation with 1 fuel valve or a modulating system ave possible. CONSTRUCTIONAL FEATURES The automatic control is housed in a non-inflammable, transparent, plug-in type plastic case and contains: – Synchronous motor with speed reducer gears as the drive for the switching cam – Switching cam with informative programme display in colour – 12 times cam drive for controlling the programme sequence – Plug-in type circuit boards with the electronic components The following important indicating - and operating elements are located on the front panel of the automatic control: – Illuminated pushbutton for indication of malfunctions and reset – Programme display in colour – Screw for central mounting 0708.24-01-e/04/99

1. Flame Monitoring The flame monitoring can be effected with the following flame detectors: – With ionization electrodes in power grids with earthed neutral conductor, utilizable with gas burners (interference effects of the ignition spark cannot influence the formation of the flame signal). – With infrared flicker detector type IRD 1020 for all types of burners. 2. Burner Control – The burner controls features a low-voltage protection. If the supply voltage dropps below 160 V during operation, the burner switches-off. When the supply voltage raises above 180 V, the burner performs a restart independently. – The automatic burner controls MMI only operate, when a load is connected to terminal 5. If the fuel valve is interrupted by an external contact during the pre-purging phase, a resistance of max. 22 kW, 4 Watt has to be applied bet-ween the terminals 5 and 8. – Functional test of the air pressure monitor before the startup and monitoring of the air pressure during the pre- purging time, as well as in the operating condition of the burner. For normal applications a working contact with a power rating of 4 A / 220 V is sufficient. – In the case of the automatic control MMI 813.1, contacts can be installed between the terminals 1 and 9 (e.g., valve limit position contacts). These are checked for their correct closing position when the unit is started up. The connection 1-9 has to be closed during the starting phase of the automatic control. 3. Safety With respect to design and programme sequence, the gas burner automatic safety controls of the MMI type range comply with the currently applicable European standards and regulations. 4. Mounting and Electrical Installation Wiring base: – 3 earth terminals with additional terminal for burner earthing – 3 neutral terminals with internal permanent connection to neutral terminal 8 – 2 independant spare terminals (S1 and S2) – extra terminals A, B and C are standard – 2 slide-in plates and 2 easy knock out holes (PG11 thread) plus 2 knock out holes in the base bottom faciliate the base wiring General: – Mounting position as required, insulation standard IP 44 (splash-proof). The automatic control and sensor should, however, not be exposed to excessive vibration. – During mounting and installation, the applicable regula- tions for installation have to be observed. COMMISSIONING AND SERVICE/MAINTENANCE 1. Important Remarks – Before commissioning, the wiring has to be accurately checked. Faulty wiring can damage the unit and endanger the safety of the installation. – The mains fuse has to be selected so that the limit values indicated under "Technical Specifications" are under no circumstances exceeded. Non-compliance with this regulation can have very serious consequences for the control unit and for the installation in the case of a short- circuit. – For safety reasons, at least one control shut-down per 24 hours must be assured. – The control unit must be plugged-in or -out only when the mains supply has been disconnected. – Automatic burner safety controls are safety devices and must not be opened. 2. Functional Check During commissioning and after an overhaul of the burner, the following checks have to be carried out: a) Starting test with closed manual valve and bridged gas monitor contact: – The device must go into a fault condition after the safety period has elapsed. b) Close the manual valve in operating position with the gas monitor contact bridged. – The device must go into a fault condition after a flame failure. c) Air pressure monitor contact interrupted: – Device goes into a fault condition. d) Bridge air pressure monitor contact before starting: – Device must not start. 3. Trouble Shooting Burner does not go into operation, programme indication remains: – Electrical connection defective – Thermostat or gas monitor "OFF" Burner does not go into operation, programme indication rotates continuously: – Air pressure monitor defective, respectively, not in starting position. (Working contact must be open). – Connection term. 1 - term. 9 interrupted – mains voltage < 180V The automatic control switches to fault condition shortly after the start of the pre-purge time (line within the blue zone): – Air pressure monitor contact does not close – No load on terminal 5 – Flame signal Automatic control switches to fault condition during the pre- purge (blue zone): – Air pressure monitor contact open – Flame signal (stray light) Automatic control switches to fault condition during the safety time (yellow zone): – No flame formation (ignition missing, valve does not open, etc.) – No flame signal or too weak flame signal (flame does not adhere, poor insulation of the flame detector, burner not properly connected to the earth conductor). Automatic control switches to fault condition during the operating position (red, resp. green zone): – Flame lift-off – Air pressure monitor contact opens – Flame signal too weak. MMI 813.1

WITH AIR DAMPER CONTROL term. 8 term. 2 term. 9 IRD 1020 MMI 813.1 WITHOUT AIR DAMPER CONTROL IRD CONNECTION SCHEMATIC DIAGRAM MMI 813.1 1 2 A/3 4 5 6 C B 7 8 9 max. 10 A rapid 6 A slow HS IS Z M L V1 SA LW GW ST RT Ph tw tlw tv1 tlk tvz tz ts tv2 1 2 A/3 4 5 6 C B 7 8 9 max. 10 A rapid 6 A slow HS GW ST RT Ph N IS Z M V2 V1 SA LW HS Main switch GW Gas pressure switch ST Limit thermostat RT Control thermostat IS Ionization probe Z Ignition M Burner motor V1 Solenoid valve 1st stage V2 Solenoid valve 2nd stage L Air damper control unit LW Air pressure monitor SA External fault indication tw Waiting time at start-up tlw max. reaction time of air pressure monitor tv1 Pre-purge period tlk Air damper open signal during pre-purge tvz Pre-ignition period tz Overall ignition period ts Safety period tv2 Time delay terminal 6 blue black brown

Satronic AG Honeywell-Platz 1 Postfach 324 CH-8157 Dielsdorf MMI WITH BASE MEASUREMENT OF THE FLAME SIGNAL IRD 1020 MMI 813.1 HOLDER M93 30 30 24 67 91 87 24 Reset button Slide-in plate PG 11 ø 16 mm, cable entry from below 57-60 30 35 25 44 16 M4 16 Earth 5 2 E + - ORDERING INFORMATION ITEM DESIGNATION ITEM NO. Control unit Type MMI 813.1 mod. 23 0622220 Base for MMI 813.1 (without air damper) Wiring base 701 TTG-EN 70101 Base for MMI 813.1 (with air damper) Wiring base S 98 75310 Slide-in plate PG-plate 70502 optionally Cable clamping plate 70501 Flame detector IRD 1020 end-on viewing 16522 Flame detector IRD 1020 side-on left 16523 Flame detector IRD 1020 side-on right 16521 IRD mounting flange IRD Holder M93 59093 Flame detector cable 3-wire, 0.6 m 7236001 The above ordering information refers to the standard version. Special versions are also included in our product range. Specifications subject to change without notice. 104 50 44 29 21.8 ø13.5 The signal should be greater than 5 µA 0 - 10 µA 0 - 100 µA The Satronic Ionimeter is ideal for making this measurement. MMI 813.1 35 3 14 4.5 26 15.1 48 17 ø20.5 4