The basic environmental requirements for the operation of the UPS system:
• Ambient temperature range: from +5...+40 °C (+5 ...+35 °C for 240 kVA and 360 kVA PF 0.9 models).
• Recommended operating range for VRLA batteries: +20...25 °C.
• Maximum relative humidity: 95%, non-condensing.
• Recommended relative humidity range: 20 - 60 %.
You must arrange ventilation of the UPS room. Sufficient amount of air cooling is needed to keep the
maximum room temperature rise at desired level.
• To limit the temperature rise to a maximum of +5 °C, the required airflow is 600 m
3
/h per 1 kW of
losses.
• To limit the temperature rise to a maximum of +10 °C, the required airflow is 300 m
3
/h per 1 kW 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.
For ventilation requirements, see 93PM G2 heat rejection in the following table.
Table 7. Air conditioning or ventilation requirements during full load operation
UPS model Heat rejection (BTU/h x 1,000) Heat rejection [kW]
93PM G2 50(200)
6,9 2,0
93PM G2 100(200)
13,8 4,1
93PM G2 150(200)
20,2 5,9
93PM G2 200(200)
26,6 7,8
93PM G2 240(240) 0.9 pF
30,7 9,0
93PM G2 50(300)
6,9 2,0
93PM G2 100(300)
13,8 4,1
93PM G2 150(300)
20,2 5,9
93PM G2 200(300)
26,6 7,8
93PM G2 250(300)
32,8 9,6
93PM G2 300(300)
38,9 11,4
93PM G2 360(360) 0.9 pF
47,3 13,9
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NOTE: If you install an external maintenance bypass (MBS):
• The UPS static bypass input (X2) and UPS rectifier input (X1) must have external isolators to isolate
these feeds from the external MBS input during service operations.
• Do not connect the external MBS input to a different source than the UPS static bypass input (X2).
EATON 93PM G2 UPS USER’S AND INSTALLATION GUIDE P-164000956
-
February 2021 www.eaton.eu 3366
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