MAESTRO OVENS OPEN BURNERS over water tray BUILDER S SPECIFICATIONS MAINTENANCE INSTRUCTIONS - WARRANTY - In order to guarantee this equipment, we recommend that you comply with the MANUFACTURER S INSTRUCTIONS in this manual. However if you cannot undertake the required maintenance operations, our installation and service network is available to provide you with a personalized contract. - WARNING - The product delivered to you complies with current standards. If any modifications are made the manufacturer cannot accept any responsibility whatsoever. The manufacturer can not be held responsible in the event of an incorrect use of the appliance. Keep your manuals. MBE12000NM
Page 1 MBE12000NM 03/08 Table of contents MAESTRO STOVES OPEN BURNERS over water tray 1. MAINTENANCE AND AFTER SALES SERVICE...2 1.1. TECHNICAL ACCESSES... 2 1.2. COMPONENTS FOR AFTER SALES... 3 1.3. GAS CIRCUIT AND COMPONENT FOR AFTER SALES... 4 1.4. PILOT BURNER SUBASSEMBLY... 5 1.5. GAS ADJUSTMENT NOZZLES-MIN. FLOW RATE-AIR)... 6
Page 2 MBE12000NM 03/08 1. MAINTENANCE AND AFTER SALES SERVICE 1.1. TECHNICAL ACCESSES ACCESS TO GAS CONTROL ACCESS TO BURNER 1- Remove the gas controls placed on the trimming hood in question (see procedure 5 General instructions MBF15000NI). 1- With you two hands take the open burner assembly by the gas supply tube, lift it slightly in order to hang it off, then push it backwards by pulling it upwards. 2- Remove the trimming hood housing the hob controls (see procedure 5 General instructions MBF15000NI). 2- Access to Venturi air adjustment (loosen the locking screw M4), and to the burner nozzle (the nozzle is loosened with size 13 wrench lengthened with a tube). 3- Access to the tap, min. nozzle flow rate and thermocouple. 3- Remove the protection hood by loosening the fixation screw M5 for access to the pilot burner (and its nozzle), and to the thermocouple.
Page 3 MBE12000NM 03/08 1.2. COMPONENTS FOR AFTER SALES DIAGRAM 1FV 2FV LIST OF PARTS Commande 1701006 Overflow tube 2000588 Joint torique 4000092 Simple open burner grid 4000093 Double open burner grid
Page 4 MBE12000NM 03/08 1.3. GAS CIRCUIT AND COMPONENT FOR AFTER SALES DIAGRAM 1FV 2FV
Page 5 MBE12000NM 03/08 LIST OF PARTS 1700085 Gas tap 3000312 Burner holding lug 3000313 Burner head 4000019 Pilot burner protection 4000021 Pilot burner protection 4000035 Venturi 6000399 Burner body Injecteur bruleur Nozzle burner See chart of nozzles Injecteur ralenti Nozzle low flame See chart of nozzles 1.4. PILOT BURNER SUBASSEMBLY DIAGRAM LIST OF PARTS 4000023 Pilot burner support 4000024 Pilot burner body 4000025 Pilot burner head 4000026 Washer 4000027 Bicone nut 4000028 Bicone for tube 4000031 Thermocouple nut 7473029 Thermocouple Injecteur veilleuse Pilot Burner nozzle See chart of nozzles
Page 6 MBE12000NM 03/08 1.5. GAS ADJUSTMENT nozzles-min. flow rate-air) ADAPTATION OF THE APPLIANCE FROM A GAS TO ANOTHER : See procedure 6 General instructions MBF15000NI Nozzles for : Burner Pilot burner Low flame adjustment screw GAS Designation Pressure Family Type (mbar) Natural gas G.P.L. Natural gas G.P.L. Natural gas G.P.L. Open burner on water recipient Diameter (1/100 e Adjust. size d Code ) (mm) G 20 20 220 18 2000226 G 25 20 245 22 2000136 G 25 25 230 22 2000227 G 30 28-30 120 18 2000625 G 31 37 150 18 2000225 G 30 ou G 31* 50 130 18 2000223 G 31** 50 140 18 2000224 G 20 20 41-2000228 G 25 20 45-2000121 G 25 25 41-2000228 G 30 28-30 ou 50 ou G 31 37 ou 50 * Configuration valid only for propane 50 mbar in Austria. ** Configuration not valid in Austria. 25-2000229 G 20 20 100-2000210 G 25 20 110-2000222 G 25 25 110-2000222 G30 28-30 80-2000209 G 31 37 80-2000209 G 30 50 65-2000221 G 31 50 65-2000221 RA : Air adjustment Air must be adjusted to the size d specified in the chart above. Remarks: d If the flame of soft and yellow, this means a lack of primary air. In this case, move the ring towards the burner (diminish size d). If the flame is nervous and hs a tendency to jump, this means there is an axcess of primary air. In this case, push the ring away from the burner (increase size d).