OPTI-UPS SS20K33 - Manual (Page 3)

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1‐ The Protection and Maintenance of AVR
1. Please clean and maintain the AVR periodically to keep from dust for lasting machine life.
2. Please use soft cloth for wiping, and please don’t use sandpaper as detergent.
3.Please check every kind of connection wires every month periodically to prevent the loosing or
abrasion.
4. Please place the unit on a flat or even surface.
5.This unit should be situated with well‐ventilation, please allow at least 30 cm clearance from the rear
front, left and right side, and these ventilation openings of right and left front , and rear line should
never be blocked.
6. Please avoid the direct sunshine, rain or moisture place.
7. Keeping the unit away from fire and high temperature to avoid overheat.
8. Please don’t place any object on the top.
9. Avoiding the installing place that contains the corrosion gas.
10. Operating temperature is between 0℃ ~ 40℃.
30cm