Liebert PDUTM, STS2 manual Altitude conversion-feet to meters, Feet = Meters

Location Considerations

2.4Altitude

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

Rating (%)

100

98

96

94

92

90

88

86

0 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000

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

Ambient Temperature	°F (°C)
Max.

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)

0	4000	4500	5000	5500	6000	6500	7000	7500	8000	8500	9000	9500	10000
				Altitude—Feet

Table 3 Altitude conversion—feet to meters

Feet = Meters

4000 = 1200

4500 = 1372

5000 = 1524

5500 = 1676

6000 = 1829

6500 = 1981

7000 = 2134

7500 = 2286

8000 = 2438

8500 = 2591

9000 = 2743

9500 = 2896

10000 = 3048

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