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MECHANICAL INSTALLATION

A sturdy mounting plate is provided in the sheltered area under the rotating

mechanism. A matching plate must be fabricated as part of the siren

mount. See Figures 5, 6 and 7 for details. The plate must have eight

equally spaced 9/16-inch holes on a 12-inch diameter circle. Mounting to

this plate is then accomplished by means of 1/2-inch bolts, nuts and lock

washers.

POLE MOUNT

Figure 7 illustrates a typical work platform with integral mounting plate.

The design and construction may be varied to suit conditions. The main

requisite is the ability to properly support the weight and wind load of the

siren assembly.

The electric control enclosure is usually mounted lower than the siren, but

at least 8 feet above ground level to discourage attempts at tampering.

Locate the enclosure for easy accessibility by qualified personnel.

IMPORTANT

Refer to Figure 9 for essential information on mechanical and electrical

installation.

ROOF MOUNT

The roof composition spacing of the rafters or beams and the load carrying

capacity must be known and considered. If the roof is capable of

supporting the siren (approximately 450 lbs.), no elaborate sub base is

necessary provided the installed horn height is adequate for the desired

sound coverage. In Snow Belt areas always mount above the highest snow

level expected.

If the roof composition and/or span loading present a problem, a sub base

should be used to distribute the weight. This base can consist of several 4

x 6 inch wood beams of sufficient length beneath the angle iron platform

(see Figure 5) to spread the roof loading.

LIFTING INTO POSITION

When the siren is mounted to the pole before lifting to the vertical

position:

Do not lift the entire siren and pole by the eyebolt on top of

the siren motor and do not let any weight rest on the

fiberglass parts of the siren.

The primary lift point is the pole and not the eyebolt on the

siren. The gear reducer end of the siren should lead the way

INSTALLATION

up as the siren and pole are raised to the vertical position (see

Figure 8).

The fiberglass horn may be assembled to the compression

chamber before erection provided no weight is put on the horn

and it does not interfere with erection.

With the pole and siren in final position, proceed with electrical

connections.

When the siren is separate from the pole or platform:

The primary lift point of the siren assembly is the eyebolt

located on top of the motor. This eyebolt is sturdy enough to

lift the 450 lb. siren safely in a vertical direction. Do not lift the

unit in this way if attached to a pole or platform mount.

With the siren mounted in final position, proceed with electrical

connections.

ELECTRICAL CONTROLS

The siren motor leads terminate under the sheltered rotating mechanism.

Attach an approved weatherproof type conduit box at this point.

All electrical controls needed for operating the siren are prewired and contained

inside a weatherproof metal enclosure, which should be mounted near the siren

in a position of easy access to authorized personnel, but out of easy reach of

unauthorized persons. Install conduit between the control box and the siren,

using wire adequate for the power requirements.

Requirements in Specification section.

Always enter electrical control and junction boxes from the bottom to

prevent leakage and water damage. (Refer to Figure 9.)

Control of the siren can be accomplished by either direct switch control,

program timer at the installation, remote control, radio encoder transmitter to

decoder receiver, or telephone lines, from a location different from installation.

The incoming signal actuates the magnetic starter, which, in turn, starts the

siren motor. The system provides thermal overload protection. Refer to wiring

diagrams.

Power for each siren is to be run from an ADEQUATELY FUSED

DISCONNECT SWITCH CONNECTED TO THE POWER SOURCE.

Additional disconnect switches may be required by code between the magnetic

starter and the siren.

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Refer to Electrical-I

IMPORTANT