Bosch LC20-PC60G6-6E Installations- und Betriebshandbuch

Premium Ceiling Speakers

LC20-PC60G6-6E | LC20-PC60G6-8E

en Installation Note

Table of contents

1Safety 4

1.1 Notices 4

2Introduction 5

2.1 Important features 5

3System overview 6

3.1 Packing list 6

3.2 Product features identification 7

3.3 Dimensions 7

3.4 Frequency response and impedance 8

3.5 Beamwidth 8

3.6 Directivity 8

3.7 Equalization 9

4Installation 10

5Troubleshooting 15

6Technical data 16

Premium Ceiling Speakers Table of Contents | en 3

Bosch Security Systems B.V. Installation Note 2017.01 | 02 | F.01U.321.490

Safety

Warning!

Suspending any object is potentially dangerous and should only be attempted by individuals

who have a thorough knowledge of the techniques and regulations of suspending objects

overhead. Bosch strongly recommends all loudspeakers be suspended taking into account all

current national, federal, state, and local laws and regulations. It is the responsibility of the

installer to ensure all loudspeakers are safely installed in accordance with all such

requirements. When loudspeakers are suspended, Bosch strongly recommends the system be

inspected at least once per year or as laws and regulations require. If any sign of weakness or

damage is detected, remedial action should be taken immediately. The user is responsible for

making sure the wall, ceiling, or structure is capable of supporting all objects suspended

overhead. Any hardware used to suspend a loudspeaker not associated with Bosch is the

responsibility of others.

Caution!

The seismic tab (auxiliary support ring) is not intended for primary suspension of the

loudspeaker. The seismic tab should only be used as a secondary safety point.

Caution!

When using the weatherized terminal cover, the original auxiliary support ring is no longer

used. Attach the safety cable to the auxiliary support ring on the weatherized terminal cover.

Caution!

Ceiling mount speaker’s safety cable

The safety cable should be installed with a minimum of 3-inches (76.2 mm) of slack.

Notices

Old electrical and electronic appliances

Electrical or electronic devices that are no longer serviceable must be collected separately and

sent for environmentally compatible recycling (in accordance with the European Waste

Electrical and Electronic Equipment Directive).

To dispose of old electrical or electronic devices, you should use the return and collection

systems put in place in the country concerned.

1.1

4en | Safety Premium Ceiling Speakers

2017.01 | 02 | F.01U.321.490 Installation Note Bosch Security Systems B.V.

Introduction

Premium Ceiling Speakers from Bosch use innovative design and materials to provide high

performance in a flush-mount ceiling format. The rear input cover for EN54 is used to create a

seal to protect the ceiling speaker from moisture and foreign particles, if properly installed.

The weatherized terminal cover must be used in all EN54 installations. Two models comprise

the family: LC20-PC60G6-6E and LC20-PC60G6-8E.

Read through this manual to familiarize yourself with the safety information, features, and

applications before you use these products.

Important features

LC20-PC60G6-6E — 6-inch Premium Ceiling Speaker

– Long throw 6.5 inch (165 mm) woofer housed in a large vented steel enclosure for

extended LF performance down to 50 Hz

– 100 watt power handling provides for 95 dB maximum SPL

– Front baffle transformer tap adjustment switch

– Includes tile rails, “C” mounting ring, and weatherized terminal cover

LC20-PC60G6-8E — 8-inch Premium Ceiling Speaker

– High output true compression driver for wide dispersion and superior coverage control

out to 20 kHz

– Long throw 8-inch (200 mm) woofer housed in a large vented 14 gauge steel enclosure

for extended LF performance down to 40 Hz

– 100 watt power handling provides for 95 dB maximum SPL

– Front baffle transformer tap adjustment switch

– Includes tile rails, “C” mounting ring, and weatherized terminal cover

2.1

Premium Ceiling Speakers Introduction | en 5

Bosch Security Systems B.V. Installation Note 2017.01 | 02 | F.01U.321.490

System overview

Packing list

Item Quantity Description

A 2 Speaker systems

B 4 Tile rails

C 2 C-ring supports

D 2 Grilles

E 1 Installation note

F 1 Cutout template

G 4 Support ring screws

H 2 Terminal connectors

I 2 Ceramic blocks

J 2 Weatherized terminal covers

K 2 Gland nuts

L 8 Screws

C (x2)

B (x4)

A (x2)

D (x2)

H (x2)G (x4)

I (x2) L (x8)

J (x2) K (x2)

Figure 3.1: Components in kit

3.1

6en | System overview Premium Ceiling Speakers

2017.01 | 02 | F.01U.321.490 Installation Note Bosch Security Systems B.V.

Product features identification

11 14 15

Figure 3.2: Bottom and top of the ceiling speaker

Item Description Item Description

1 Steel backcan 9 Rotating mounting tabs

2 Mounting screws 10 Grille

3 Tap selector 11 Grille safety tether

4 Conduit knockout 12 Gasket attached to the cover

5 Removable input terminal connector 13 Knock out holes

6 Seismic tab (auxiliary support ring) 14 Weatherized terminal cover

7 Strain relief fitting 15 Seismic tab (auxiliary support ring)

8 Terminal cover plate

Dimensions

10.7 mm

[0.42 in]

Ø 280.5 mm [11.04 in]

Ø 213.30 mm [8.40 in]

248 mm

[9.76 in]

293.90 mm

[11.57 in]

Ø 248 mm [9.76 in]

11.6 mm

[0.46 in]

Ø 327 mm [12.87 in]

Ø 294.30 mm [11.59 in]

353.90 mm

[13.93 in]

Ø 260.80 mm [10.27 in]

308 mm

[12.13 in]

Figure 3.3: LC20-PC60G6-6E (left) and LC20-PC60G6-8E (right) dimensions

3.2

3.3

Premium Ceiling Speakers System overview | en 7

Bosch Security Systems B.V. Installation Note 2017.01 | 02 | F.01U.321.490

Frequency response and impedance

50 100 1000 10000 20000

3.16

100

60.00000

70.00000

80.00000

90.00000

100.00000

Impedance (Ohms)

Sensitivity (dB)

Frequency (Hz)

Frequency, Half Space Impedance

50 100 1000 10000 200003.16

100

60.00000

70.00000

80.00000

90.00000

100.00000

Impedance (Ohms)

Sensitivity (dB)

Frequency (Hz)

Frequency, Half Space Impedance

LC20-PC60G6-6E Frequency Response and

Impedance 1 watt / 4 meters / on axis (With EN54

required equalization applied)

LC20-PC60G6-8E Frequency Response and Impedance

1 watt / 4 meters / on axis (With EN54 required

equalization applied)

Beamwidth

LC20-PC60G6-6E Beamwidth LC20-PC60G6-8E Beamwidth

Directivity

LC20-PC60G6-6E Directivity LC20-PC60G6-8E Directivity

3.4

3.5

3.6

8en | System overview Premium Ceiling Speakers

2017.01 | 02 | F.01U.321.490 Installation Note Bosch Security Systems B.V.

Equalization

When used in an EN54 installation the following equalization must be applied to the speakers:

LC20-PC60G6-6E LC20-PC60G6-8E

PEQ Frequency: 180 Hz PEQ Frequency: 152 Hz

PEQ Filter Q: 2.0 PEQ Filter Q: 2.0

PEQ Gain: -6.0 dB PEQ Gain: -8.0 dB

3.7

Premium Ceiling Speakers System overview | en 9

Bosch Security Systems B.V. Installation Note 2017.01 | 02 | F.01U.321.490

Installation

248 mm (9.76 in)

294.3 mm (11.59 in)

Figure 4.1: Trace cutout template Figure 4.2: Cut hole

A: Speaker ground point

Figure 4.3: Secure rails to C-Ring Figure 4.4: Wiring – ground point

Figure 4.5: Install the gland nut into the cover Figure 4.6: Run the wire cable through the gland

nut.

10 en | Installation Premium Ceiling Speakers

2017.01 | 02 | F.01U.321.490 Installation Note Bosch Security Systems B.V.

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