RCF PLP 50EN Flush Mount Ceiling Loudspeaker User Manual
- June 16, 2024
- RCF
Table of Contents
RCF PLP 50EN Flush Mount Ceiling Loudspeaker
SAFETY AND OPERATING PRECAUTIONS
IMPORTANT NOTES
Before connecting and using this product, please read this instruction manual carefully and keep it on hand for future reference. This manual is to be considered an integral part of this product and must accompany it when it changes ownership as a reference for correct installation and use as well as for the safety precautions.
RCF S.p.A. will not assume any responsibility for the incorrect installation and / or use of this product.
SAFETY AND OPERATING PRECAUTIONS
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All the precautions, in particular the safety ones, must be read with special attention, as they provide important information.
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Loudspeaker lines (amplifier outputs) can have a sufficiently high voltage (i.e. 100-70 V) to involve a risk of electrocution: never install or connect this loudspeaker when the line is alive.
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Make sure all connections have been made correctly and the loudspeaker input voltage is suitable for the amplifier output.
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Protect loudspeaker lines from damage. Make sure they are positioned in a way that they cannot be stepped on or crushed by objects.
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Make sure that no objects or liquids can get into this product, as this may cause a short circuit.
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Never attempt to carry out any operations, modifications or repairs that are not expressly described in this manual. Contact your authorized service centre or qualified personnel should any of the following occur:
- The loudspeaker does not function (or works in an anomalous way).
- The cable has been damaged.
- Objects or liquids have got into the unit.
- The loudspeaker has been damaged due to heavy impacts or fire.
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Should the loudspeaker emit any strange smell or smoke, remove it from the line after having immediately switched the amplifier off.
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Do not connect this product to any equipment or accessories not foreseen.
For suspended installation, only use the dedicated anchoring points and do not try to hang this loudspeaker by using elements that are unsuitable or not specific for this purpose.
Also check the suitability of the support surface to which the product is anchored (wall, ceiling, structure, etc.) and the components used for attachment (screw anchors, screws, brackets not supplied by RCF etc.), which must guarantee the security of the system / installation over time, also considering, for example, the mechanical vibrations normally generated by transducers. -
RCF S.p.A. strongly recommends this product is only installed by professional qualified installers (or specialised firms) who can ensure correct installation and certify it according to the regulations in force.
The entire audio system must comply with the current standards and regulations regarding electrical systems. -
Mechanical and electrical factors need to be considered when installing a professional audio system (in addition to those which are strictly acoustic, such as sound pressure, angles of coverage, frequency response, etc.).
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Hearing loss
Exposure to high sound levels can cause permanent hearing loss. The acoustic pressure level that leads to hearing loss is different from person to person and depends on the duration of exposure.
To prevent potentially dangerous exposure to high levels of acoustic pressure, anyone who is exposed to these levels should use adequate protection devices.
When a transducer capable of producing high sound levels is being used, it is necessary to wear ear plugs or protective earphones.
See the technical specifications in the instruction manual for the maximum sound pressure the loudspeaker is capable of producing. -
To ensure a correct sound reproduction, loudspeaker phase is to be respected (loudspeakers are connected respecting the amplifier polarity)
This is important when loudspeakers are installed adjacent one another, for instance, in the same room. -
To prevent inductive effects from causing hum, noise and a bad system working, loudspeaker lines should not be laid together with other electric cables (mains), microphone or line level signal cables connected to amplifier inputs.
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The loudspeaker cable shall have wires with a suitable section (twisted, if possible, to reduce inductive effects due to surrounding electromagnetic fields) and a sufficient electrical insulation. Refer to local regulations since there may be additional requirements about cable characteristics.
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Install this loudspeaker far from any heat source.
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Do not use solvents, alcohol, benzene or other volatile substances for cleaning the external parts of this product. Use a dry cloth.
RCF S.P.A. THANKS YOU FOR PURCHASING THIS PRODUCT, WHICH HAS BEEN DESIGNED TO GUARANTEE RELIABILITY AND HIGH PERFORMANCE.
DESCRIPTION
The PLP 50EN ceiling loudspeaker is in compliance with EN 54-24 standard.
It is equipped with a plastic fire dome and can be installed flush-mounted in
false ceilings or panels.
It is particularly suitable for reproducing alarm messages, as it provides particularly intelligible voice reproduction and it is resistant to the high temperatures that can be reached during a fire.
Main features:
- High quality voice reproduction.
- 5” loudspeaker.
- Transformer for connection to 100 V (/ 70V) constant voltage lines.
- Possibility to select the output power among several values.
- Steel protection grille.
- Plastic fire dome.
- Ceramic terminal strip for connection (with earth contact).
- Quick system to fix the loudspeaker to the false ceiling through two spring hooks.
- Fire protection internal cables.
- Thermal fuse that prevents damage to the audio line due to heat on the speaker.
INSTALLATION
WARNING: MAKE SURE THAT THE LOUDSPEAKER IS INSTALLED IN A STABLE AND SECURE WAY IN ORDER TO AVOID ANY CONDITIONS THAT MAY BE DANGEROUS FOR PERSONS OR STRUCTURES. ENSURE THE SUPPORT SURFACE (E.G. WALL, ETC.) HAS THE NECESSARY MECHANICAL CHARACTERISTICS TO SUPPORT THE WEIGHT OF THE LOUDSPEAKER. BEFORE INSTALLING THE LOUDSPEAKER, CAREFULLY CHECK ALL COMPONENTS TO BE USED AND MAKE SURE THERE IS NO DAMAGE, DEFORMATION, CORROSION AND/OR MISSING OR DAMAGED PARTS THAT COULD REDUCE THE SAFETY OF THE INSTALLATION. IN OUTDOOR USE, AVOID INSTALLING THE LOUDSPEAKER IN PLACES EXPOSED TO HARSH WEATHER CONDITIONS. THE PL 82EN IS DESIGNED FOR FLUSH-MOUNT INSTALLATION IN FALSE CEILINGS. BEFORE INSTALLING THE LOUDSPEAKER, MAKE SURE THERE IS SUFFICIENT SPACE BEHIND THE FALSE CEILING PANEL TO HOLD THE SPEAKER: WITH RESPECT TO THE SUPPORT SURFACE OF THE FRONT FLANGE OF THE LOUDSPEAKER, A FREE SPACE 100 mm (C. 4″) DEEP IS NECESSARY.
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Drill a hole of diameter 151 mm (5.94”) in the false ceiling panel, as shown in figure 1.
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Loosen the bolt of the fire dome, which needs to be removed to access all internal parts. Make the electrical connection as described in the next section of the manual,set the desired power value, then refit the fire dome through its bolt.
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Raise the two spring hooks and insert the speaker into the false ceiling as shown in figure 2 , so that it is fixed as shown in the previous figure 1.
CONNECTION
WARNING : loudspeaker connections should be only made by qualified and
experienced personnel having the technical know-how or sufficient specific
instructions to ensure that connections are made correctly and to prevent any
electrical danger.
To prevent any risk of electric shock, do not connect loudspeakers when the
amplifier is switched on. Before turning the system on, check all connections
and make sure there are no accidental short circuits. The entire sound system
shall be designed and installed in compliance with the current local laws and
regulations regarding electrical systems.
CERAMIC TERMINAL STRIP CONNECTION
The connection to the 100 V (/ 70 V) constant voltage line is made through the
ceramic terminal strip, which includes a contact for earthing.
Insert the cable through one of the two rubber cable guides of the fire dome.
Connect the positive wire to the speaker input IN 100 V (+) and the
negative wire to IN 0 (–).
Connect the earth wire (yellow-green) to the respective terminal strip
contact.
TRANSFORMER POWER SELECTION
Link the ‘TAP’ connector (red wire) to the transformer contact having the
desired power value (see the next table and the figure 4).
| TAP (pins) | POWER (100 V) | POWER (70 V) |
|---|---|---|
| 1 | 1.5 W | 0.75 W |
| 2 | 3 W | 1.5 W |
| 3 | 6 W | 3 W |
NOTES ABOUT CONSTANT VOLTAGE SYSTEMS
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The loudspeaker input voltage (Vd) shall correspond to the amplifier output voltage (Va).
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The sum of nominal power values (Pd x n) of all loudspeakers connected to the line shall not exceed the amplifier power (Pa).
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Make sure all loudspeakers are connected in phase to ensure a correct sound reproduction
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Always use cables having wires with an adequate cross-section, considering the cable length and the total loudspeaker power.
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Loudspeaker lines must be kept separated from mains cable, microphone cables or others, in order to avoid inductive phenomena may cause hum or noises.
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Use loudspeaker cables having twisted wires to reduce hum caused by inductive effects due to coupling with electromagnetic fields.
SPECIFICATIONS
Input voltage: 100 V ( / 70 V)
Power (selectable) at 100V: 6 W – 3 W – 1.5 W (power values are halved at
70 V)
Input impedance: 1.67 kΩ – 3.33 kΩ – 6.67 kΩ
Frequency response: 130 Hz ÷ 20 kHz (–10 dB)
Sensitivity: 93 dB (1 W, 1 m), 81 dB (1 W, 4 m)
Max. sound pressure level: 101 dB (6 W, 1 m), 89 dB (6 W, 4 m)
Coverage angle (-6dB) (1): 170° (500 Hz), 165° (1 kHz), 160° (2 kHz),
100° (4 kHz)
Transducer: 5”
Applicable wire section: 0.8 ÷ 4 mm²
Grille material: steel
Fire dome material : plastic
Colour: white
IP protection grade: IP 40
Connector: ceramic terminal strip
False ceiling cutout size: ø 151 mm (5.94”)
Net weight: 0,63 kg (1,39 lbs)
Operating temperature: –30 ÷ +60 °C (–22 ÷ +140 °F)
Dimensions: ø 175 mm (6.89”), h: 71 mm (2.80”)
(1) Measures made with speaker mounted on a baffle and measurement microphone on the same axis (angle 0°)
Customer Support
RCF S.p.A. – Via Raffaello Sanzio 13, 42124 Reggio Emilia, ITALY
17
0068-CPR-051/2017
EN 54-24:2008
Loudspeaker for voice alarm systems for fire detection and fire alarm systems
for buildings
PLP 50EN
Provided options:
Type A
Other technical data: see operational manual.
All EN54-24:2008 standard requirements are verified in the RCF S.p.A.
manufacturing plant site in Via Raffaello Sanzio 13, 42124 Reggio Emilia,
ITALY.
The Declaration of Performance is available on the RCF website (www.rcf.it), in the DOWNLOADS section of the product page.
RCF S.p.A. Italy
Via Raffaello Sanzio, 13
42124 Reggio Emilia – Italy
Tel +39 0522 274 411
Fax +39 0522 232 428
e-mail: info@rcf.it
References
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