RCF PL 68EN User manual

USER MANUAL
MANUALE D’USO
PL 68EN FLUSH-MOUNT
CEILING LOUDSPEAKER
IN COMPLIANCE WITH
EN 54-24 STANDARD
DIFFUSORE ACUSTICO
PER CONTROSOFFITTO
CONFORME ALLA
NORMA EN 54-24

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SAFETY AND OPERATING
PRECAUTIONS
IMPORTANT NOTES
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
1. All the precautions, in particular the safety ones, must be read with special
attention, as they provide important information.
2. Loudspeaker lines (amplier outputs) can have a sufciently high voltage
(i.e. 100-70 V) to involve a risk of electrocution: never install or connect this
loudspeaker when the line is alive.
3. Make sure all connections have been made correctly and the loudspeaker
input voltage is suitable for the amplier output.
4. Protect loudspeaker lines from damage. Make sure they are positioned in a
way that they cannot be stepped on or crushed by objects.
5. Make sure that no objects or liquids can get into this product, as this may
cause a short circuit.
6. Never attempt to carry out any operations, modications or repairs that are
not expressly described in this manual.
Contact your authorized service centre or qualied 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 re.
7. Should the loudspeaker emit any strange odours or smoke, remove it from
the line after having immediately switched the amplier off.
8. 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
specic 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.

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9. RCF S.P.A. strongly recommends this product is only installed by
professional qualied installers (or specialised rms) who can ensure a 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.
10. 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.).
11. 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 specications in the instruction manual for the maximum
sound pressure the loudspeaker is capable of producing.
12. To ensure a correct sound reproduction, loudspeaker phase is to be
respected (loudspeakers are connected respecting the amplier polarity).
This is important when loudspeakers are installed adjacent one another, for
instance, in the same room.
13. 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 amplier
inputs.
14. The loudspeaker cable shall have wires with a suitable section (twisted,
if possible, to reduce inductive effects due to surrounding electro-magnetic
elds) and a sufcient electrical insulation. Refer to local regulations since
there may be additional requirements about cable characteristics.
15. Install this loudspeaker far from any heat source.
16. Do not use solvents, alcohol, benzene or other volatile substances for
cleaning the external parts of this product. Use a dry cloth.

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RCF S.P.A. THANKS YOU FOR PURCHASING THIS PRODUCT, WHICH
HAS BEEN DESIGNED TO GUARANTEE RELIABILITY AND HIGH
PERFORMANCE.
DESCRIPTION
PL 68EN is a ceiling loudspeaker in compliance with EN 54-24 standard.
It is equipped with a fire protection steel dome and can be installed into
false ceilings (flush-mounted).
Main features:
-High quality voice reproduction.
-Steel construction with metal protection grille.
-Fire protection dome with an attachment system that ensures quick
installation.
-Dual cone 6” loudspeaker.
-Transformer for connection to 100 V (/ 70 V) constant voltage lines.
-Power selection among three values.
-Ceramic terminal strip.
-Thermal fuse that prevents damage to the audio line due to heat on
the loudspeaker.
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. the false ceiling) 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 68EN is designed for ush-mount installation (into false ceilings).
Before installing loudspeakers, make sure there is sufcient space behind
the false ceiling: with respect to the support surface of the loudspeaker front
ange, at least an empty space 130 mm (about 5”) deep is necessary.
Loudspeaker connections should be only made by qualied and experienced
personnel having the technical know-how or sufcient specic instructions to
ensure that are made correctly and prevent any electrical danger.
To prevent any risk of electric shock, do not connect loudspeakers when the
amplier 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.
INSTALLATION AND CONNECTIONS

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100 V
0
ø 200 mm
1. Drill a hole of diameter 200 mm (7.87”) in the false ceiling
panel.
Insert the external ange into the hole (previously drilled) and
then release its springs to x it to the false ceiling.
1.
2.
2. Insert the cable into the fire dome and connect both the
100 V (/ 70 V) line and the earth wire to the ceramic terminal
strip of the fire dome (as shown in the figure).
CERAMIC
SCREW TERMINAL
100 V
+
0
IN RED
BLACK FUSE COM
GREEN
8Ω
3W
6W
1.5W

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3. Insert the re dome into the external ange
(already xed to the false ceiling).
4. Select the power value among 6 / 3 / 1.5 W
(at 100V) on the loudspeaker transformer by
linking the red wire to the proper terminal.
If the line is 70 V, the power will be halved.
Connect the black wire to the transformer COM
terminal.
5. Link the safety cable and then insert the
loudspeaker into the re dome.
1.5W 3W 6W COM
4.
3.
5.
PUT THE RING INTO THE HOOK
SAFETY CABLE

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PUSH
6.
6. Push and turn counterclockwise the
loudspeaker to secure it.
GENERIC NOTES ABOUT
CONSTANT VOLTAGE SYSTEMS
-The loudspeaker input voltage (Vd) shall correspond to the amplier
output voltage (Va).
-The sum of nominal power values (Pd x n) of all loudspeakers connected
to the line shall not exceed the amplier power (Pa).
-Make sure all loudspeakers are connected in phase to ensure a correct
sound reproduction.
-Always use cables having wires with an adequate cross-section,
considering the cable length and the total loudspeaker power.
-Loudspeaker lines must be kept separated from mains cable, microphone
cables or others, in order to avoid inductive phenomena may cause hum
or noises.
-Use loudspeaker cables having twisted wires to reduce hum caused by
inductive effects due to coupling with electromagnetic elds.
AMPLIFIER
Pa = Amplier power
Pd = Speaker power
n = Number of speakers
Vd = Speaker input voltage
Va = Amplier output voltage
Pa > Pd x n Va Vd = Va Vd = Va Vd = Va

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SPECIFICATIONS
INPUT VOLTAGE:
POWER (SELECTABLE) AT 100V:
INPUT IMPEDANCE:
FREQUENCY RESPONSE:
SENSITIVITY:
MAX. SOUND PRESSURE LEVEL:
COVERAGE ANGLE (– 6 DB):
TRANSDUCER:
APPLICABLE WIRE SECTION:
COLOUR:
BODY AND GRILLE MATERIAL:
FIRE DOME MATERIAL:
FIRE DOME COLOUR:
CONNECTOR:
FALSE CEILING CUTOUT SIZE:
NET WEIGHT:
OPERATING TEMPERATURE:
DIMENSIONS:
100 V ( / 70 V)
6 W – 3 W – 1.5 W (power values are halved
at 70 V)
1.67 kΩ – 3.33 kΩ – 6.67 kΩ
130 Hz ÷ 20 kHz (–10 dB)
94 dB (1 W, 1 m),
82 dB (1 W, 4 m)
102 dB (6 W, 1 m),
90 dB (6 W, 4 m)
201° (500 Hz), 126° (1 kHz), 127° (2 kHz),
112° (4 kHz)
6” dual-cone
0.8 ÷ 4 mm²
white
steel
steel
red
ceramic terminal strip
ø 200 mm (7.87”)
1.34 kg (2.95 lbs)
–30 ÷ +60 °C (–22 ÷ +140 °F)
ø 220 mm (8.66”), h: 96 mm (3.78”)
ø200.0 mm
90.7 96.02.4
ø220.0

1488
RCF S.p.A. - Via Raffaello Sanzio 13, 42124 Reggio Emilia, ITALY
14
1488-CPR-0486/W
EN 54-24:2008
PL 68EN
Type A
DoP: 012_14
Other technical data: see operational manual.
Loudspeaker for voice alarm systems
for fire detection and fire alarm systems for buildings

10307437 revD2018/ 02
www.rcfaudio.com
HEADQUARTERS:
RCF S.p.A. Italy
tel. [phone]
e-mail: [e-mail]
RCF UK
tel. [phone]
Int. [phone]
e-mail: [e-mail]
RCF France
tel. [phone]
e-mail: [e-mail]
RCF Germany
tel. [phone]
e-mail: [e-mail]
RCF Spain
tel. [phone]
e-mail: [e-mail]
RCF Belgium
tel. +32 (0) 3 - 3268104
e-mail: [e-mail]
RCF USA Inc.
tel. [phone]
e-mail: [email protected]
Except possible errors and omissions.
RCF S.p.A. reserves the right to make modications without prior notice.
Salvo eventuali errori ed omissioni.
RCF S.p.A. si riserva il diritto di apportare modiche senza preavviso.