Crown Audio CTs 1200 用户手册

Property damage, serious injury, or death could occur if an

accumulation of water, snow, dust, etc. resides in the speaker

projector, severely reducing or preventing operation of this

device. Mount the unit so speaker projector is pointed

horizontally or slightly downward.

a. Remove the two 1/2-13 hex head bolts, flat washers

and lockwashers that secure mounting bracket to
unit.

b. Select mounting location.

Property damage, serious injury, or death could occur if any

objects are in front of speaker, severely reducing optimum

sound distribution. For maximum effectiveness, ensure that

the front of the speaker is clear of obstructions.

c. Using the mounting bracket as a template, scribe

drill position marks on the mounting surface. See
figure 1 for mounting hole locations and dimensions.

Before drilling holes in any surface, be sure both sides of

surface are clear of anything that could be damaged.

d. Drill holes at the previously scribed drill position

marks to accommodate 1/2" diameter screws.

e. Secure bracket to mounting surface with 1/2"

diameter screws appropriate for the type of

mounting surface material.

f. Remove eight 5/16-18 x 1-3/4" hex head bolts,

lockwashers and hex nuts that secure cover to

housing and carefully lift off cover.

Property damage, serious injury, or death could occur if the

machined sealing surfaces are damaged on this product. To

maintain the effectiveness of the explosion-proof enclosure,

be careful to avoid damaging the machined sealing

surfaces of cover and housing.

g. Reattach unit to its mounting bracket with two 1/2-

13 hex head bolts, flat washers and lockwashers
previously removed. Position speaker so as to obtain
desired sound coverage then tighten these bolts
securely.

h. Before reinstalling the housing cover, read paragraph

d in section 3, Electrical Connections, and make the
necessary connections.

3. Electrical Connections.

To avoid electrical shock, do not connect wires when

circuits are energized.

National Electrical Code, as well as local codes, must
be followed during installation of these models. All
electrical wiring must be routed through conduit and
fittings approved for explosion-proof installations.
The use of metal conduit and fittings is required to
provide grounding of the enclosure.

Property damage, serious injury, or death could occur if

suitable barriers are not provided for explosive gases and
other atmospheres. To reduce the possibility of explosion

when this unit is used in Class I, Group B atmospheres, the

conduit MUST have a sealing fitting within 18-inches of the

enclosure. Be sure to refer to the National Electrical Code

or the authorities having jurisdiction in your area.

A

B

C

D

E

F

G

H

I

20.75 in.

18.56 in.

8.312 in.

0.500 in.

16.375 in.

8.875 in.

4.500 in.

2.500 in.

0.531 in.

52.7 cm.

47.1 cm.

21.1 cm.

12 mm.

41.6 cm.

22.5 cm.

11.4 cm.

6.35 cm.

13 mm.

B

C

D

A

E

F

G

I

H

H

DIA.

3 HOLES

PIPE

THREAD