This article covers maintenance and cleaning of the BCHT by Boretti.
Pay special attention to the grease filters; to remove the filter: push inward on the clamp at the handle andpull the filter downward. Wash out the filter using a neutral soap. If the model purchased has the controls shown in Figure 10/11: the grease filter must be cleaned periodically: exactly how often depends on use (at leastonce every other month). If the model purchased has the controls shown in Figure 12/13: see the paragraph “Controls shown in Fig. 12/13" ("Filter Alarm"). If the model purchased has the controls shown in Figure 14/15: the grease filters must be cleaned approximately once every 30 hours of operation (when the light button lamp comes on) - Fig. 14/15S). Once the cleaned filters are reinstalled, to reset the counter hold the light button pressed down for about 1" (Fig.14/15A) while the corresponding pilot lamp (S) is on. For further information, see the Controls in Fig. 14/15 in the paragraph entitled "Operation". Charcoal filter/s: if using the hood in the filtering hood, the charcoal filter must be replaced periodically. To remove the charcoal filters, proceed as follows, depending on the model purchased: if the hood features round charcoal filters (Fig. 16), remove the charcoal filter by turning clockwise. if the hood features a panel type charcoal filter (Fig. 9), remove the charcoal filter by first of all removing the two filter retainers M. If the model purchased has the controls shown in Figure 12/13, see the paragraph "Controls shown in Fig.12/13" ("Filter Alarm"). If the model purchased has the controls shown in Figure 10/11, the charcoal filters must be replaced according to use: on the average once every 6 months. If the model purchased has the controls shown in Figure 14/15, the charcoal filters must be replaced each time the light button (Fig. 14/15S) lamp flashes (i.e. every 120 hours of operation). Lighting:
- To gain access to the bulbs, remove the grease filters as described above and remove the bulbs. Replace with lamp s of the same type.
- If the light spot is damaged, it must be replaced only by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard. To change the halogen lamps shown in Fig. 17 open the cover levering from the proper slots. Replace with the same type of lamp. CAUTION: Do not handle glass bulb with bare hands.