7InstallationInstructionsInstallation precautions (continued)Be absolutely sure to use the supplied brackets andscrews to install the camera.p Do not mount the unit by employing any methods otherthan those specified.p Do not remodel the mounting bracket or mounting screwsprovided with the unit.Before installation, always disconnect the power plugWhen installing, always use the supplied components.Do not disassemble or modify the wall mount adaptor.Tightening up the mounting screwsp Tighten up the screws and bolts securely to the degreethat is appropriate for each of the materials used in themounting location and structures.p After tightening up the screws and bolts, check that thereis no unsteadiness and that the parts have been tightenedsecurely.p Use the specified tools and tighten the screws firmly.p Tighten up the screws using the specified torque driver.Do not use electrical drivers or impact drivers.When the unit is no longer going to be used, do notleave it lying around, but be absolutely sure to disposeof it properly.For details on how to remove the unit, refer to “Removing thecamera” (page 14).When installing, transferring or disposing of the unit, beabsolutely sure to hold it by its pedestal area.Problems may result if the camera head is held or rotated.Do not attach a filter, hood, extender or other parts to theunit.Use the dedicated AC adaptor and power cable providedwith the unit.Connect the AC adaptor and power cable to the power inletsecurely.Installing the AC adaptorp Do not place the adaptor directly onto a ceiling panel orother such surface.Extreme danger is posed when water has collected on thesurface as a result of leaking rain, for instance.Secure the adaptor firmly to the bottom or other surface ofa reinforcing member made of channel steel where dustand other foreign matter will not accumulate.(Refer to page 12.)p Secure the adaptor firmly so that there will be no chancethat it will fall off or fall down.Secure it using a strength which can withstand the mass(approx. 0.3 kg [0.66 lb]) of the AC adaptor.Install the accessory AC adaptor near the main poweroutlet, and position it in such a way that its power plugcan be plugged into and unplugged from the outlet easily.When connecting the AC adaptor to a power outlet on theceiling or on any other surface where dust may collect, wipeoff the dust on the power plug at periodic intervals as ananti-tracking measure.Power switchThis unit does not have a power switch. The power turnson when its power plug is connected to a power outlet.When the power is turned on, the pan, tilt, zoom andfocusing operations are performed. Before proceeding withmaintenance, be absolutely sure to disconnect the powerplug from the power outlet.Connecting the power cableBe absolutely sure to connect the power cable of theAC adaptor through a circuit breaker using one of thefollowing methods.(1) Connect the power cable through a power control unit.(2) Connect the power cable to a circuit breaker in apower distribution panel with a contact distance of3.0 mm or more.Use a circuit breaker which is capable of shuttingoff all the poles of the main power supply with theexception of the protective ground conductor.(3) Install the AC adaptor near the power outlet, andconnect it through the power plug.GroundingBefore using the unit, check that the groundingwire has been fastened securely.If there is a possibility of noise interferenceEither wire the cables so that the power cable (ceiling lightcord) of AC 100 V* [AC 220 V**] or more, and the signalcable are placed at least 1 meter (3.3 ft) apart.Alternatively run each cable through its own metal conduit.(The metal conduits must be grounded.)* : For AW-HE120WP, AW-HE120KP** : For AW-HE120WE, AW-HE120KERadio signal interferenceIf the unit is positioned near a TV or radio transmittingantenna or a strong electrical field or magnetic field (such asthat generated by a motor, transformer or power lines), itsimages may be distorted and/or the images may be affectedby noise.When connecting the cables, ensure that the connectorareas will not be subject to any load.Doing so may cause malfunctioning.Allowing the generated heat to escapeThis unit allows the heat generated inside to escape from itssurfaces.Do not install the unit in a location where it will be surroundedby walls or other surfaces and where heat will be trapped.In addition, the heat is dissipated to the bottom panel whichwill warm up over time: This is normal and not indicative ofany trouble.