IntroductionFor proper operation, a PS4000 storage array must be installed in a rack. See your PS Series supportprovider for information about supported racks.Before You BeginBefore you begin to mount an array in a rack, you must:• Read the installation safety precautions. See Installation Safety Precautions.• Make sure the rack location meets the array’s environmental requirements. See InstallationEnvironmental Requirements.• Make sure your rack meets the rack requirements. See Rack Requirements.• Unpack the rail kit and make sure you have all the necessary parts and tools. The rail kit is located inthe array shipping box. You must supply your own tools. See Rail Kit Parts and Tool Requirements.Installation Safety PrecautionsFollow these safety precautions:• It is recommended that only individuals with rack mounting experience install a PS4000 array in arack.• Make sure the array is fully grounded at all times to prevent damage from electrostatic discharge.• When handling the array hardware, you must use the electrostatic wrist guard shipped with the arrayor a similar form of protection.• You need at least two people to lift the array chassis from the shipping box.Installation Environmental RequirementsThe rack location must meet the following environmental requirements:• Only operate an enclosure from a power source with a voltage range of 100 to 240 VAC.• Make sure your power source has sufficient electrical overload protection.• In North America, connect the enclosure to a source of power with over-current protection providedby a double pole 20A or less device (UL 489 circuit breakers). In Europe, the over-current protectionmust be provided by a 20A or less device (IEC circuit breakers).• Make sure there is sufficient space for air flow in front of and behind the array.• Make sure the location is properly vented.• Make sure the rack installation meets the array technical specifications in Table 1.PS4000 Rack Mount Instructions 1