7InstallationInstalling the lobby stationInstalling the power supply unit on the wallA DC cable is not included. You need to prepare one. Refer to “Wire type and distance” (page 11).Installing the flush mounted box in the wall(Pitch of fixing screw)(Pitch of fixing screw)(Aperture dimension)148 mm136 mm162 mm280 mm326 mm340 mm80 mm340 mmDrilling dimension of wall surface for the flush mounted box Open the knockout holes of the flush mounted box, andput the wires from each room and the door opener, and theDC cable from the power supply unit through the holes.Mount the box in the wall.Knockout holesWallDC cable connected tothe power supply unitWires connected torooms and the dooropenerAbout the installation locationLThe AC cable plug is used as the main disconnect device.Ensure that the power outlet is installed near the productand is easily accessible.LA readily accessible disconnect device shall beincorporated external to the equipment.– External disconnect device must be certified and have acreepage and clearance distance of 3 mm or more.Precautions for wiringLMake sure that the power supply unit is unplugged beforeperforming any wiring work.LAlways connect AC or DC cables to the appropriateconnector or connection terminal.LTo prevent the DC cable from disconnecting and to preventelectric shock, secure the DC cable using the cable binder(accessory) and attach the cable cover.How to connect the AC cable and DC cable:Connect the power supply unit (accessory), the AC cable(accessory), and a DC cable (locally procured).ABPower Supply Unit (VL-PS241) side: 1 25 mm 2 7 mmLobby Station (VL-V591) side: 1 52 mm or more 2 12 mmFront viewEFG H *1CD*1 Make sure that there are no bare wires exposed outsidethe product.Power supply unit (with cable cover removed)KI JBottom viewTop viewk DC cable binder hole1 Strip the DC cables as follows:DC cable (1, 2)2 Remove the screws (3) and then remove the cablecover (4).3 Connect the AC cable (5) (accessory) to the AC INconnector (9) on the top of the power supply unit. Next,connect the DC cable (7) (locally procured) to the DCOUT terminal (j) on the bottom of the power supplyunit, and then secure the wires by tightening the screws(6).LRecommended torque: 0.45 N·m {4.6 kgf·cm}Insert the cables firmly all the way into theconnector and terminals. If the cables are notinserted all the way, heat may be generated.CAUTION4 Use the cable binder (8) (accessory) to secure the DCcable (7) (double-coated area) to the power supplyunit.5 Make sure to replace the cable cover (4).Wall mountingAttach the power supply unit to the wall securely.1 Screws (accessory) x 2A
