HP 10647 10842 Rack Reference Guide - Page 21
Optimum Environment, Space Requirements
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Configuration Factors Optimum Environment Specific requirements for space, power, temperature, and airflow must be met to provide optimum performance with minimum maintenance for your rack environment. Space Requirements When deciding where to place your rack: • At least 122 cm (48 inches) of clearance is needed all the way around the pallet and above the rack to allow the removal of packing materials. • At least 86 cm (34 inches) of clearance is needed in front of the rack to allow the door to open all the way. • At least 75 cm (30 inches) of clearance is needed in the rear of the rack to provide access to components. • At least 38 cm (15 inches) of clearance is needed around a power supply to facilitate servicing. Power Requirements WARNING: To reduce the risk of personal injury, fire, or damage to the equipment, do not overload the AC supply branch circuit that provides power to the rack. Consult the electrical authority having jurisdiction over your facility wiring and installation requirements. When planning for power distribution requirements for your rack configuration: • The power load must be balanced between available AC supply branch circuits. • The overall system AC current load must not exceed 80 percent of the branch circuit AC current rating. • If a UPS is used, the load should not exceed 80 percent of the marked electrical current rating of the UPS. HP 10842 Rack Reference Guide 2-5