7 Maintenance
66
7.3.6 Cleaning the cabinet ventilation filter
1. Remove the wing nut, and remove the metal fitting and a stop frame.
2. Clean the filter and assemble it by the reversed procedure.
When the filter is deteriorated, replace it.
Fig. 58  Cabinet ventilation filter
Note
For the heater inside the panel, attach the cover (included in the accessory) at the ventilation inlet in
winter.
Wing nut
Filter
(F1000054100)
Stop frame
Metal fitting