Wheelock MT4-24-IS Manual de instrucciones descargar pdf (Pagina 7)

P82467-001 L

Sheet 7 of 8

APPLICATION NOTES:

CAUTION: If sheated multiconductor cable or 3/4" conduit fittings are used, check that installed product has sufficient

clearance and wiring room prior to installing backboxes and conduit.

1. Multitone Appliances can be flush mounted to a standard 4 inch square by 2-1/8 inch deep electrical box (Figure A or H) or a

standard 2-gang by 2-1/2 inch minimum deep electrical box (Figure B).

2. Select largest backbox shown in Mounting Options where possible, to provide additional wiring room for easy installation.

3. Conduit entrance to backboxes should be selected to insure sufficient wiring clearance for installed equipment. When

extension rings are required, conduit should enter through backbox, not extension ring. Use Steel City #53151/1-1/2" deep

or #53171/2-1/8" deep extension rings or equal with same area cut out in back.

4. The MT-12/24 model can also be surface mounted to Wheelock's Indoor/Outdoor Backbox (Model IOB) for indoor/outdoor

use (Figure C). The IOB is NOT

intended for use with the MT4-12/24.

5. The MT-12/24 model is supplied with four snap-in covers to hide the mounting holes and provide an attractive installation.

The snap-in covers are interchangeable and have slots on each end so they can be removed if necessary (by prying them up

with a thin blade screwdriver). To insert snap-in cover, slide one side partially into mounting hole recess; align the cover so

that snap-in cover and grille are parallel to each other (not tilted) and snap cover into place.

6. The IOB surface backbox has 1/2 inch conduit knockouts on two sides. It has a variety of knockouts on the back for

mounting it to recessed electrical boxes and for wire entrances (Figure D). It can also be mounted to a surface with the two

mounting ears that are supplied. The ears slide into slots on the back of the box. Use appropriate anchors for the wood

screws that are supplied with the box (if necessary).

7. For outdoor use, the IOB includes a prefastened gasket and four hole plugs. Use the mounting ears to secure the box (do not

use the back knockouts). Use the hole plugs to seal the unused mounting holes on the Multitone grille (press them in

securely from the back side of the grille). Mount the unit to the IOB with the four #8-18 screws supplied with the box.

8. The Code 3 Horn and Code 3 Tone incorporate the temporal pattern specified by ANSI/NFPA/ISO for standard emergency

evacuation signaling. They should be used only for fire evacuation signaling and not for any other purpose.

9. The Horn and Bell Tones can be used on coded systems with a minimum On-Time of 1/4 second. All other tones are

recommended for use only on continuous (non-coded) systems.

The Multitone products and these instructions are copyrighted by Wheelock and contain proprietary, confidential and trade

secrets of Wheelock. No part of the Multitone products and these instructions may be photocopied, printed or reproduced in any

form or modified, adapted, changed or enhanced, or converted to another programming language, or used to create updated,

related or derivative works, without the prior written consent of Wheelock. No part of the Multitone shall be decompiled,

disassembled or reverse engineered.

CAUTION: If Multitone appliances are operated within 15 inches of a person's ear, they can produce a sound pressure level

that exceeds the maximum 120 dBA permitted by ADA and OSHA rules. Exposure to such sound levels can result in damage to

a person's hearing.

These appliances can produce a distinctive three pulse Temporal Pattern Fire Alarm Evacuation Signal for total evacuation in

accordance with NFPA 72.

CAUTION: Check the installation instructions of the manufacturers of other equipment used in the system for any

guidelines or restrictions on wiring and/or locating Notification Appliance Circuits (NAC) and notification appliances. Some

system communication circuits and/or audio circuits, for example, may require special precautions to assure immunity from

electrical noise (e.g. audio crosstalk).

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of

the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in residential

installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance

with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference

will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception,

which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or

more of the following measures: 1) Reorient or relocate the receiving antenna, 2) Increase the separation between the

equipment and receiver, 3) Connect the equipment into an outlet on a circuit different from that to which the receiver is

connected, and 4) Consult the dealer or an experienced radio/TV technician for help.

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Wheelock MT4-24-IS Manual de instrucciones Pagina 7

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