TOA Electronics F-2852C User's Manual
Contents
1. Caution Repeating Step 2 apply two or more light coats of paint Application of one thick coat of paint all at once may cause drips or unevenness to show up in the painted finish or clog the mesh holes 8 ABOUT THE INPUT OVERLOAD PROTECTION CIRCUITRY The F 2852C features internal input overload protection circuitry If an extremely high input level is fed to the unit the protection circuitry automatically cuts off the signal to the speaker element A drastic reduction in sound volume indicates that the protection circuitry has been enabled In such cases simply reduce the amplifier volume The protection circuitry will automatically reset in approximately 10 seconds After reset try to maintain the volume at a level slightly lower than before Caution This protection circuitry does not completely protect the unit against extremely high input power levels Depending on the type or duration of excessive power input the protection circuitry might not be enabled resulting in damage to the speaker element Also if the excessive power input continues for a long period of time the circuitry may not be capable of resetting to its original condition Use the system with care so that the speakers are not exposed to excessive power input 9 SPECIFICATIONS Enclosure Bass reflex type Rated Input 60 W High Impedance Power Handling Capacity Continuous pink noise 90 W 8 60 W 16 Continuous program 180 W 8 120 W 12. speaker from accidentally falling Secure C channel bar or To attach tie one end of the supplied anchor bolt in the ceiling safety wire around the speaker s safety wire hook and tie its snap ring around a secure C channel bar or anchor bolt Safety wire in the ceiling accessory Safety wire hook on Bea Speaker unit Step 5 Plug the detachable input connector into the speaker s 4 Detachable input wiring socket connector S Step 6 Mount the speaker N Caution In Before mounting check to be sure that the speaker s f 4 mounting tabs are turned inside the unit as shown in S the figure If turned outward the speaker cannot be inserted through the mounting hole Mounting te 6 1 Insert the speaker through the mounting hole till it contacts the ceiling panel While doing so avoid directly touching the speaker s diaphragm and tweeter aa t N WARNING Never grab the tweeter section as a hand hold The speaker could fall due to damage resulting in possible personal injury Mounting hole Tweeter section Tweeter section 6 2 Rotate and tighten the mounting tab axis screws 4 places on the unit clockwise to their full stop in order to grip the ceiling panel with the mounting tabs Mounting tab Mounting tab axis screw Use an electric screwdriver to tighten Tightening
3. torque 6 10 kgf cm Step 7 Set the input power Turn the input selector switch on the unit s front to set F 2852C it to the desired input impedance Factory preset to 170 ane Nice 1 5 0 2 Important Never set this switch to low impedance 8 Q or 16 EE settings when using a high impedance 25 70 or 100 V 117001 6ow 30w 3 7W line Failure to follow this instruction could result in 830 7 5w damage to the speaker or amplifier Step 8 Attach the front grille Align the tabs 4 places on the back side of the grille with the corresponding notches in the unit Speaker then rotate the grille to full stop in the direction unit indicated by the LOCK arrow Tip The front grille employs a double locking system that clicks into place once partway through rotation but only locks into position at its point of full rotation Always be sure to rotate the grille to its full stop Notch 4 places LOCK Front grille accessory Tab 4 places 6 REMOVING THE SPEAKER FOR MAINTENANCE 6 1 Detaching the Front Grille Turn the front grille counterclockwise to full stop then lightly p 1 Unlock pull it downward Tip The front grille employs a double locking system If the grille cannot be detached when lightly pulled downward 8 9598 8865 8 it likely has not yet been fully rotated back to the detachment
4. 44 INSTRUCTION MANUAL CEILING SPEAKER SYSTEM F 2852C 20 TABLE OF CONTENTS 1 SAFETY PRECAUTIONS 2 7 REPAINTING THE SPEAKER 10 2 GENERAL DESCRIPTION 3 8 ABOUT THE INPUT OVERLOAD PROTECTION CIRCUITRY 10 3 FEATURES 3 9 SPECIFICATIONS 11 4 NOMENCLATURE AND DIMENSIONS 4 Accessories ENE E T RENE EE VA ASE REI EATE 11 5 INSTALLATION 5 Optional Component 11 6 REMOVING THE SPEAKER FOR MAINTENANCE 9 Please follow the instructions in this manual to obtain the optimum results from this unit We also recommend that you keep this manual handy for future reference TOA Corporation 1 SAFETY PRECAUTIONS Be sure to read the instructions in this section carefully before use Make sure to observe the instructions in this manual as the conventions of safety symbols and messages regarded as very important precautions are included We also recommend you keep this instruction manual handy for future reference Safety Symbol and Message Conventions Safety symbols and messages described below are used in this manual to prevent bodily injury and property damage which could result from mishandling Before operating yo
5. 6 Impedance 100 line 170 Q 60 W 330 30 W 670 Q 15 W 3 3 3 W 70 V line 83 60 W 170 Q 30 W 330 15 W 6700 7 5 W 3 3 1 5 W 25 V line 830 7 5 W 170 Q 3 7 W 330 1 9 W 6700 0 9 W 3 3 0 2 W 160 80 Sound Pressure Level 91 dB 1 W 1 Frequency Response 60 20 000 Hz 10 dB 45 20 000 Hz 20 dB at installation in 1 2 free sound field Measured by installing the unit in the center of a ceiling Speaker Component High frequency Dome type Low frequency 16 cm 6 1 2 cone type Mounting Hole 250 mm 9 27 32 Maximum ceiling thickness 37 mm 1 29 64 Input Terminal Removable locking connector with screw down terminals 2 input terminals and 2 bridge terminals Usable Cable Solid copper wire 20 5 21 6 mm equivalent to AWG 24 14 Stranded copper wire 0 2 2 5 mm equivalent AWG 24 14 Finish Enclosure Steel plate plating Baffle Fire resistant ABS resin resin material grade UL 94 V O or its equivalent black Rim Fire resistant ABS resin resin material grade UL 94 V O or its equivalent white paint Punched net Steel plate white paint Dimensions 280 mm 11 1 x Depth 227 mm 8 15 16 Weight 5 1 kg including mounting accessories Note The design and specifications are subject to change without notice for improvement Accessories Front grille 1 Ceiling r
6. Front grille position In such cases take care to rotate the grill fully counterclockwise in order to release the lock 2 Pull lightly 6 2 Removing the Speaker Rotate the 4 mounting tab axis screws counterclockwise The mounting tabs rise as they turn allowing the speaker to be removed Caution When loosening the mounting tab axis screws support the speaker by hand to prevent it from falling Screw cap Ge Mounting tab 1 I 1 i 1 Mounting tab axis screw Use an electric screwdriver to detach Caution Be sure to set the screwdriver s torque for under 4 kgf cm Failure to do so may cause the Screw cap and the Mounting tab to fall off on the rear of ceiling panel 10 7 REPAINTING THE SPEAKER Follow the procedure below when repainting the front grille Step 1 Step 2 Step 3 Clean the front grille before painting Wipe with a soft cloth dampened in a detergent Caution Do not use thinner or other volatile liquids to clean the grille Spray on a uniform thin coat of paint Cautions Avoid painting with a roller or brush as the grille mesh holes could become clogged with paint Use appropriate spray paints for the front grille grille and frame materials Grille Rolled steel plate Frame Fire resistant ABS resin acrylic paint Be sure to follow the directions indicated on the paint when painting After the paint has dried apply another light coat
7. Install mounting hardware on the ceiling 3 1 Direct mounting to a ceiling panel OO Fold the supplied ceiling reinforcement ring in half and insert it through the mounting hole in the ceiling panel then open it with its tabs facing up Place the ring on the ceiling panel aligning it with Mounting hole the mounting hole Ceiling reinforcement ring accessory The reinforcement ring is too large to be inserted into the mounting hole unless folded Reinforcement ring placed on ceiling panel These tabs must M face upward 2 away from the hole 3 2 Mounting to a ceiling frame Use the supplied ceiling reinforcement ring in conjunction with the optional HY TB1 Tile Bar Bridge Note Refer to the instruction manual included with the HY TB1 for the correct ceiling mounting procedure Installed HY TB1 HY TB1 optional Ceiling frame ee ee Sire l E a gt Ceiling reinforcement ring accessory Ceiling panel 3 3 Mounting to an anchor bolt Installed HY AH1 Use the supplied ceiling reinforcement ring in conjunction with the optional HY AH1 Anchor 4 anes EL LLLL LL Hanging Bracket ES Anchor bolt Note Refer to the instruction manual included with the HY AH1 for the correct mounting procedure HY AH1 optional Ceiling reinforcement ring accessory Ceiling panel Step 4 Attach a safety wire to prevent the
8. dware combination Doing otherwise may cause the unit or component to fall off resulting in personal injury Should the following irregularity be found during use immediately stop operating the unit and contact your nearest TOA dealer Further attempt to use under this condition may cause fire or electric shock If you detect smoke or a strange smell coming from the unit If no tone sounds A CAUTION Avoid installing the unit in humid or dusty locations in locations exposed to the direct sunlight near the heaters or in locations generating sooty smoke or steam as doing otherwise may result in fire or electric shock Do not operate the unit for an extended period of time with the sound distorting This is an indication of a malfunction which in turn can cause heat to generate and result in a fire Avoid touching the unit s sharp metal edge to prevent injury 2 GENERAL DESCRIPTION The F 2852C is a 2 way flush mounted ceiling speaker that offers a wide frequency range and high quality sound output Use of its supplied and optional mounting hardware permits versatile mounting to match a wide range of applications and installation locations 3 FEATURES Two way bass reflex speaker system designed to provide a wide frequency range and high power handling capability Ideal for locations that have high ceilings or require true to life sounds Uniform sound output levels are achievable n
9. einforcement ring 1 Safety wire approx 60 cm or 23 5 1 Paper Pattern 1 Optional Components HY TB1 Tile Bar Bridge Place this bridge on the ceiling frame when mounting the speaker unit to a weak suspended ceiling HY AH1 Anchor Hanging Bracket Attach this bracket to an anchor bolt when mounting the speaker unit to a weak ceiling 11 Printed in Indonesia A TOA Corporation 533 06 096 80
10. irect mounting to a ceiling panel Use the supplied ceiling reinforcement ring Mounting to a ceiling frame Use the supplied ceiling reinforcement ring in conjunction with the optional HY TB1 Tile Bar Bridge Mounting to an anchor bolt Use the supplied ceiling reinforcement ring in conjunction with the optional HY AH1 Anchor Hanging Bracket Ne Mount the speaker using the most appropriate method for the ceiling panel installation location Step 1 Cut a 0250 mm 9 27 s2 hole in the ceiling 2 Use the supplied paper pattern to position and trace the hole ie ee Ceiling panel NNN Step 2 Connect the speaker cable to the detachable input connector Tip The following matching cable types are recommended Solid copper wire 20 5 21 6 mm equivalent to AWG 24 14 Stranded copper wire 0 2 2 5 mm equivalent to AWG 24 14 S _ Detachable input connector ___ Speaker unit 2 1 Remove the detachable input connector from the speaker s wiring socket and loosen the screw of the terminal to be used 2 2 Insert the stripped cable end into the terminal and tighten the terminal screw with a screwdriver If not bridging If bridging From Amplifier Caution If not making bridge connections D Nx be sure to tighten unused terminal 2 5 screws to avoid their vibration 13 64 R Nx 22 the Step 3
11. ot only the position directly under the speaker but also over a wide radius Coverage angle is approximately 110 Because the speaker is provided with both low and high impedance operating capability it can be used in many different applications Front panel mounted input selector switch permits easy verification and change of current impedance settings even after installation Easy installation Can be quickly and accurately mounted to ceilings and walls Rotating front grille be installed quickly and conveniently Attractive exterior design specially created by an interior designer blends naturally with any architectural space enhancing the immediate area s sense of harmony Optional mounting hardware permits installation in weak ceiling panels 4 NOMENCLATURE AND DIMENSIONS Unit mm inches Front Side Q N I Front grille accessory 38 1 1 2 g 227 8 15 16 x lt Rear pies Safety wire accessory Safety wire hook Detachable input connector Mounting hole 250 9 27 Ceiling mounting S N 5 Ceiling reinforcement ring 2 accessory N x gt Ceiling panel 5 INSTALLATION The F 2852C ceiling speaker can be mounted in 3 different configurations 4 5 D
12. ur product read this manual first and understand the safety symbols and messages so you are thoroughly aware of the potential safety hazards A WARNING A CAUTION Indicates a potentially hazardous situation which if mishandled could result in death or serious personal injury Indicates a potentially hazardous situation which if mishandled could result in moderate or minor personal injury and or property damage WARNING Leave the installation to your TOA dealer because the installation requires expert knowledge Improper installation may cause the unit to fall resulting in personal injury and or property damage Install the unit in a location that can structurally support the weight of the unit and its mounting hardware Doing otherwise may result in the unit falling down and causing personal injury and or property damage Do not use other methods than specified to mount the unit Extreme force is applied to the unit and the unit could fall off possibly resulting in personal injuries Attach the safety wire to the unit If not attached the unit could fall off resulting in personal injury Tighten each screw securely Ensure that the unit has no loose joints after installation to prevent accidents that could result in personal injury Do not hold the tweeter as a handle to carry the unit If the tweeter breaks off the unit falls off resulting in possible personal injury e Use the specified mounting har
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