8Precautions for installationObserve the following in addition to the information included in “Read this first!”.Have your supplier install the unit and handle connections. Cable connections• Be sure to use dedicated remote operation panel (ROP) cables.• If the unit will not be used for an extended period of time, disconnectthe ROP cables to save electricity. Handle carefully• Make sure you do not drop or expose the unit to strong impacts orvibrations that could damage the product or cause accidents. Do not insert foreign material in the unit.• Foreign materials such as water, metal objects, food or drink thatenter the unit could cause a fire or electrical shock. Installation location• This unit is designed for indoor use.• Use the unit on a stable and horizontal surface that is sufficientlycapable of supporting its weight.• When the unit will be recessed into a panel or table, make sure thatenough space is provided for ventilation and cables.• Do not install the unit in a location where it and the cables can beeasily damaged.• Do not install the unit in a location where the temperature drops to0°C (32°F) or lower or reaches 40°C (104°F) or higher.• Do not install the unit in a location exposed to direct sunlight or nearexhaust vents that expel hot air.• Do not install the unit in a location exposed to excessive humidity,dust or vibrations to prevent malfunction.Setting up the unitInstalling and removing rack mount bracketsRack mount bracketRack mount bracketSecuring screwsSecuring screwsThe unit is shipped from the factory with the rack mount bracketsinstalled.The customer can remove the four screws that hold the rack mountbrackets in place using a Phillips screwdriver.• After detaching, store the rack mount brackets and the screws in alocation easily accessible when required.• Next time you use the rack mount brackets to secure the unit, tightenthe four screws to a torque of 50 N•cm or more.Rack installation (rack mounting)Securing screw (commercially available) Secure the unit to the rack using two screws.• The securing screws are not supplied with the unit. Purchase screwsthat will fit the 5 mm (3/16 inch) in diameter holes before rackmounting.• The temperature in the rack must be between 0 °C (32°F) and 40 °C(104°F).