Lenovo 7522, 7721, 7715, 7774, 7706, 7719, 7749 For all machine types, Environment, Electrical input

For all machine types

Environment

Air temperature:

Operating: 10° to 35°C (50° to 95°F)

Non-operating: -40° to 60°C (-40° to 140°F) (with package)

Non-operating: -10° to 60°C (14° to 140°F) (without package) Humidity:

Operating: 10% to 80% (10% per hour, non condensing)

Non-operating: 10% to 90% (10% per hour, non condensing) Maximum altitude:

Operating: -50 to 10,000 ft (-15.2 to 3048 m)

Non-operating: -50 to 35,000 ft (-15.2 to 10,668 m)

Electrical input

Input voltage:

Low range:

Minimum: 100 V AC

Maximum: 127 V AC

Input frequency range: 50 to 60 Hz

Voltage-selection switch setting: 115 V AC

High range:

Minimum: 200 V AC

Maximum: 240 V AC

Input frequency range: 50 to 60 Hz

Voltage-selection switch setting: 230 V AC

Chapter 3. General information 41