Eaton 93PR - Table 3-4: Air Conditioning or Ventilation Requirements During Full Load Operation

Eaton 93PR 500 kW UPS
User's and Installation Guide 22
The basic environmental requirements for operation of the UPS system are:
• Ambient Temperature Range: from +5 to +40 °C
• Recommended Operating Range: from +20 to +25 °C
• Maximum Relative Humidity: 95 %, noncondensing
It is required to arrange ventilation of the UPS room. Sufficient amount of air cooling is needed to keep the
maximum room temperature rise at desired level:
• Temperature rise of max. +5 °C requires the airflow of 600 m³ per 1 kVA of losses
• Temperature rise of max. +10 °C requires the airflow of 300 m³ per 1 kVA of losses
An ambient temperature from +20 to +25 °C is recommended to achieve a long life of the UPS and batteries.
The cooling air entering the UPS must not exceed +40 °C. Avoid high ambient temperature, moisture, and
humidity.
The UPS ventilation requirements are shown in the following table:
Table 3-4: Air conditioning or Ventilation Requirements During Full Load Operation
Rating Heat Rejection (kVA) Heat Rejection (BTU/h x 1000)
500 kW 17915 71.1