This article explains how to use the BCHT by Boretti.
OPERATION
Depending on the model, the unit is equipped with the following controls:
Controls shown in Fig. 10: Button A: light switch. Button B: first speed motor ON/OFF switch. Button C: second speed switch. Button D: third speed switch. E: motor on light. THE MOTOR FUNCTION WARNING LIGHT (E) IS NOT PRESENT IN SOME MODELS. Controls shown in Fig. 11: switch; position 0: motor off; position 1-2-3: motor on at speed I, II and III. C: Motor pilot lamp. Controls shown in Fig. 12: Button A: turns the LIGHTS off. Button B: turns the LIGHTS on. Button C: decreases speed down to minimum speed. If pressed for 2" the motor is turned off. Button D: activates the motor (calling the last speed used) and increases the speed until reaching maximum. Button E: FILTER ALARM/TIMER RESET: when pressing the key during display of the filter alarm (motor off) it resets the hour counter. When pressing the key when the motor is running, the TIMER is activated and the hood will automatically be switched off after 5 minutes. L1) The 4 green LEDs indicate the running speed. L2) When the LED is red (motor off) it indicates the FILTER ALARM. When the LED is green (flashing) it indicates that the TIMER has been activated with the key E. FILTER ALARM: After 30h of operation, the LED L2 turns RED. It indicates that the grease filters need to be cleaned. After 120h of operation, the LED L2 turns RED and flashes; It indicates that the grease filters need to be cleaned and the charcoal filters replaced. After cleaning the grease filters (and/or replacing the charcoal filters), restart the hour counter (RESET) by pressing the key E during display of the filter alarm. Controls shown in Fig. 13: Button A: turns the lights off. Button B: turns the lights on. Button C: decreases speed down to minimum speed. If pressed for 2" the motor is turned off. If pressed for 2" when the Filter Alarm is active, the HOUR counter is reset. Button D: starts the motor and increases the speed until reaching maximum Button E: Activates/deactivates the sensor (AUTOMATIC or MANUAL mode). In automatic mode the sensor is active and the LED L2 is on. The LEDs L1 indicate the running speed. L1) The 4 GREEN LEDs signal the running speed. L2) When the LED is GREEN it indicates AUTOMATIC mode. When it is off, it indicates MANUAL mode. When the LED is RED, it indicates the Filter Alarm. FILTER ALARM: Displayed for 30" when the motor is off: After 30h of operation, the LED L2 turns RED. It indicates that the grease filters need to be cleaned. After 120h of operation, the LED L2 turns RED and flashes; It indicates that the grease filters need to be cleaned and the charcoal filters replaced. After cleaning the grease filters (and/or replacing the charcoal filters), restart the hour counter (RESET) by pressing the key C during display of the filter alarm. GAS SENSOR SENSITIVITY: The sensitivity of the sensor can be modified to suit your requirements. To modify the sensitivity, the appliance must be in manual mode (i.e. the LED L2 must be off); If not, press the key E. Modify the sensitivity by simultaneously pressing the keys D and E. The set sensitivity is indicated by the 4 green LEDs. By means of buttons C(-) and D(+) the desired sensitivity is set (Fig. 21/S). Store the “new” sensitivity by pressing the key E. Controls shown in Fig. 14: Button A: turns the lights on/off; every 30 hours of operation the corresponding pilot lamp (S) comes on to indicate that the grease filters must be cleaned; every 120 hours of operation the corresponding pilot lamp (S) flashes to indicate that the grease filters must be cleaned and the charcoal filter replaced. To restart the hour counter (RESET), hold the button A pressed down for about 2" (while the pilot lamp S is on). Button B: drives the motor in first speed (the corresponding pilot lamp comes on); when holding it down for about 1", the motor cuts out; when pressing the button a second time (while the pilot lamp is on), the TIMER is activated and thus the motor stops after 5' (the pilot lamp flashes). Button C: drives the motor in second speed (the corresponding pilot lamp comes on); when pressing the button a second time (while the pilot lamp is on), the TIMER is activated and thus the motor stops after 5' (the pilot lamp flashes). Button D: drives the motor in third speed (the corresponding pilot lamp comes on); when pressing the button a second time (while the pilot lamp is on), the TIMER is activated and thus the motor stops after 5' (the pilot lamp flashes). Button E: drives the motor in fourth speed (the corresponding pilot lamp comes on); when pressing the button a second time (while the pilot lamp is on), the TIMER is activated and thus the motor stops after 5' (the pilot lamp flashes). Controls shown in Fig. 15: Button A: turns the lights on/off; every 30 hours of operation the corresponding pilot lamp (S) comes on to indicate that the grease filters must be cleaned; every 120 hours of operation the corresponding pilot lamp (S) flashes to indicate that the grease filters must be cleaned and the charcoal filter replaced. To restart the hour counter (RESET), hold the button A pressed down for about 2" (while the pilot lamp S is on). Button B: drives the motor in first speed (the corresponding pilot lamp comes on); when holding it down for about 1", the motor cuts out. Button C: drives the motor in second speed (the corresponding pilot lamp comes on); when pressing the button a second time (while the pilot lamp is on), the TIMER is activated and thus the motor stops after 5' (the pilot lamp flashes). Button D: drives the motor in third speed (the corresponding pilot lamp comes on); when pressing the button a second time (while the pilot lamp is on), the TIMER is activated and thus the motor stops after 5' (the pilot lamp flashes). Button E: drives the motor in fourth speed (the corresponding pilot lamp comes on); when pressing the button a second time (while the pilot lamp is on), the TIMER is activated and thus the motor stops after 5' (the pilot lamp flashes).