HP LC2000r HP Netserver LC 2000 Installation Guide - Page 155
Elevated Operating Ambient Temperature
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Chapter 13 Alternative Rack Mounting Safety Precautions Always keep the following safety and environmental issues in mind, especially if you install the HP NetServer in a non-HP rack environment: l Optimum Operating Environment - The optimum operating conditions for the HP NetServer is in an environmental controlled computer room with a temperature range of 20 to 22°C (68 to 72°F) at 40 to 60% relative humidity. • Maximum Ambient Temperature - Ensure the maximum ambient temperature does not exceed 35°C (95° F). • Elevated Operating Ambient Temperature - The ambient operating temperature within a closed or multi-unit rack assembly may exceed the room's ambient temperature. Ensure the temperature within the rack itself does not exceed 35°C (95° F). • Reduced Air Flow - As you mount equipment in the rack, ensure you allow enough air flow for safe operation of the equipment. The NetServer's fans will only operate correctly if both front and rear doors of the rack allow free air flow (perforated openings), or are removed. • Mechanical Loading - Uneven mechanical loading within the rack can cause hazardous conditions. To prevent this in your installation plans, place the heaviest components in the bottom of the rack, mounting all components as low in the rack as is practical. • Circuit Overloading - Ensure the total configuration of equipment in the rack does not overload the supply circuit. To this end, check the nameplate ratings on all equipment. Consider the effect of circuit overloading on overcurrent protection and supply wiring. • Reliable Earth Grounding - Maintain reliable grounding of rack-mounted equipment. Give particular attention to supply connections not directly connected to the branch circuit: such as, using non-HP power strips. 147