Owner's Manual
5
Electrical connection 
The connection of the hobs to mains is effected via the flex and the three pin plug located underneath the 
hotplate. The appliance operate at a main voltage of 120V a.c., frequency 60Hz. Electric power absorption is 
about 1W for 5 gas burner version or 2W for 6 gas burners version. 
WARNING: Electrical Grounding Instructions: This appliance is equipped with a (three-prong) 
grounding plug for your protection against shock hazard and should be plugged directly into a 
properly grounded receptable. Do not cut or remove the grounding prong from this plug. 
Wiring diagrams   Wiring diagram description  
For hotplate model A see Fig. 13.      1. Cable terminal 
For hotplate model B see Fig. 14.      2. Ignition switch 
3. Spark generator 
4. Ignition spark 
L. Black 
N. White 
T. Green (earth) 
Room ventilation – Location and venting. 
ATTENTION: An exhaust fan may be used with the appliance; in each case it shall be installed in 
conformity with the national standards in force. 
ATTENTION: Exhaust hood operation may affect other vented appliances; in each case it shall be 
installed in conformity with the national standards in force. 
Conversion to different types of gas 
Before carrying out any maintenance work, disconnect the appliance from the gas and electric 
supply. For Natural Gas fit regulator assembly described in Fig. 5. For LP Gas fit assembly described 
in fig. 5. 
 - CHANGING THE NOZZLES FOR USE WITH OTHER TYPES OF GAS: 
To change the nozzles of the burners use the following procedure:  
Lift up the burners and unscrew the nozzles ( Fig. 8) using an adjustable spanner of 7 mm and change the 
nozzles with those designed for the new gas supply according to the information given in TABLE A shown 
below. 
TABLE A: Adapting to different types of gas 
Drop-in cooktop with 5 workyop burners model B3H0..Q7X(2 or 5)D 
Burner  Position Inj. size  Gas  Pressure  Max Rate  Min Rate  By-pass size
 1/100mm Type [i.w.c.] [BTU/h] [W] [BTU/h] [W] [1/100mm] 
Auxiliary  Front R  92  NG  4”  3750  1098  900  264  Regulated 
  56 LP(Propane) 11” 3750 1098 900 264 29 
Semi-Rapid  Rear L  117  NG  4”  6000  1759  1500  439  Regulated 
 Rear R 73 LP(Propane) 11” 6300 1845 1500 439 36 
Rapid  Front L  155  NG  4”  10400  2046  2500  732  Regulated 
  98 LP(Propane) 11” 11400 3339 2500 732 47 
 Centre Inner 80 NG 4”   
900 264 
Regulated 
Dual    50  LP(Propane) 11”  NG 17000  4980  29 
burner  Centre Outer  N°2 x 130  NG  4”  LP 18800  5507  Regulated 
    N°2 x 83  LP(Propane) 11”      65 
Drop-in cooktop with 6 workyop burners model B3K0..U7X(2 or 5)D 
Burner  Position Inj. size  Gas  Pressure  Max Rate  Min Rate  By-pass size
 1/100mm Type [i.w.c.] [BTU/h] [W] [BTU/h] [W] [1/100mm] 
Auxiliary  Front R  0,92  NG  4”  3750  1098  900  264  Regulated 
  0,56 LP(Propane) 11” 3750 1098 900 264 29 
Semi-Rapid  Rear L & C  1,17  NG  4”  6000  1759  1500  429  Regulated 
 Front C 0,73 LP(Propane) 11” 6300 1845 1500 439 36 
Rapid  Front L  1,55  NG  4”  10400  2046  2500  732  Regulated 
  0,98 LP(Propane) 11” 11400 3339 2500 732 47 
 Centre Inner 0,80 NG 4”   
900 264 
Regulated 
Dual    0,50  LP(Propane) 11”  NG 17000  4980  29 
burner  Centre Outer  N°2 x 1,30  NG  4”  LP 18800  5507  Regulated 
    N°2 x 0,83  LP(Propane) 11”      65 










