Service manual

5.2.8 Ventilation and Chassis

Ventilation system of the UPS consist of air flow guiding insulation paper and fans, The

ventilation system keeps the temperature of component of the UPS in safe range, so it is

very important for the UPS, To achieve lowest acoustic noise and longest life time of the

fans, a fans driver and intelligent fans speed control algorithm is employed.

The chassis of the UPS provide a strong construction accommodate all the electrical

part, shield for EMC, and safety guard for operator.

Basically, the chassis comprise a base plant, an internal support plant, a front support

plant, an out side cover, a rear panel, and a front panel.