Altitude; Figure 1 Recommended Derating For High Altitude Operation; Figure 2 Maximum Ambient Temperature For Full Load Operation At Higher Altitudes; Table 3 Altitude Conversion-Feet To Meters - Liebert PDUTM Maintenance Manual

2.4

Altitude

The standard units are designed for full load operation up to 4000 feet (1200m) above sea level. See
Figure 1 for recommended deratings for altitudes greater than 4000 feet (1200m).
Figure 1 Recommended derating for high altitude operation
100
98
96
94
92
90
88
86
Operation at full load at a higher altitude can be accommodated in ambient temperatures less than
104°F (40°C) ambient. Figure 2 shows the maximum allowable ambient temperature for full load
operation at altitudes above 4000 feet (1200m).
Figure 2 Maximum ambient temperature for full load operation at higher altitudes
Table 3 Altitude conversion—feet to meters
Feet = Meters
4000 = 1200
4500 = 1372
5000 = 1524
5500 = 1676
6000 = 1829
6500 = 1981
7000 = 2134
104.0 (40)
102.2 (39)
100.4 (38)
98.6 (37)
96.8 (36)
95.0 (35)
93.2 (34)
94.1 (33)
89.6 (32)
87.8 (31)
86.0 (30)
7500 = 2286
8000 = 2438
8500 = 2591
9000 = 2743
9500 = 2896
10000 = 3048
Altitude—Feet
6
Location Considerations