USER MANUAL
8
2.7.
Maintenance and replacement
parts
1. Directional duct needs regular cleaning.
2. Effectively filter according to the need to change.
3. Check whether directional duct and smoking mouth need to clean
，
if
need, Directional air duct cleaning pipe and suction nozzle, after check
and clean, suction still reduce, filter should be replaced.
4. When replacing the main filter, first turn off power switch, loosen the
machine cover four buckles on the edge of button, take up the top part,
efficient filter and the filter, at the beginning and then take up the main
filter.
5. Replace the new primary filter, ensure the new master filter
placement is correct, the connection to the bottom of the filter fan
export conduction.
NOTE:
The two sides of the pre-filter are different. When changing the pre-filter, the
dense side is to the filter and the other side is to the inlet.
After the unit has worked up to up-limited work time, it must clean it as zero,
or else, the unit will alarm.
The rubber cashing must be level placed with the top edge of main filter, or
else, it cannot airproof and will reduce the suction.
