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Installation Precautions
Adherence to the following will aid in problem-free installation with long-term reliability:
WARNING - Several different sources of power can be con-
nected to the fire alarm control panel. Disconnect all sources of
power before servicing. Control unit and associated equipment
may be damaged by removing and/or inserting cards, modules, or
interconnecting cables while the unit is energized. Do not attempt
to install, service, or operate this unit until manuals are read and
understood.
CAUTION - System Re-acceptance Test after Software
Changes: To ensure proper system operation, this product must be
tested in accordance with NFPA 72 after any programming opera-
tion or change in site-specific software. Re-acceptance testing is
required after any change, addition or deletion of system compo-
nents, or after any modification, repair or adjustment to system
hardware or wiring. All components, circuits, system operations, or
software functions known to be affected by a change must be 100%
tested. In addition, to ensure that other operations are not inadver-
tently affected, at least 10% of initiating devices that are not directly
affected by the change, up to a maximum of 50 devices, must also
be tested and proper system operation verified.
This system meets NFPA requirements for operation at 0-49º C/
32-120º F and at a relative humidity . However, the useful life of
the system's standby batteries and the electronic components may
be adversely affected by extreme temperature ranges and humidity.
Therefore, it is recommended that this system and its peripherals
be installed in an environment with a normal room temperature of
15-27º C/60-80º F.
Verify that wire sizes are adequate for all initiating and indicating
device loops. Most devices cannot tolerate more than a 10% I.R.
drop from the specified device voltage.
FCC Warning
WARNING: This equipment generates, uses, and can radi-
ate radio frequency energy and if not installed and used in
accordance with the instruction manual may cause interfer-
ence to radio communications. It has been tested and found
to comply with the limits for class A computing devices pur-
suant to Subpart B of Part 15 of FCC Rules, which is
designed to provide reasonable protection against such
interference when devices are operated in a commercial
environment. Operation of this equipment in a residential
area is likely to cause interference, in which case the user
will be required to correct the interference at his or her own
expense.
HARSH™, NIS™, and NOTI•FIRE•NET™ are all trademarks; and Acclimate® Plus™, eVance®, FlashScan®, FAAST Fire Alarm Aspiration Sensing Technology®,
Honeywell®, Intelligent FAAST®, NOTIFIER®, ONYX®, ONYXWorks®, SWIFT®, VeriFire®, and VIEW® are all registered trademarks of Honeywell International Inc.
Microsoft® and Windows® are registered trademarks of the Microsoft Corporation. Chrome™ and Google™ are trademarks of Google Inc. Firefox® is a registered
trademark of The Mozilla Foundation.
©2018 by Honeywell International Inc. All rights reserved. Unauthorized use of this document is strictly prohibited.
NFW-50X Manual — P/N LS10129-001NF-E:C 7/25/2018
Like all solid state electronic devices, this system may operate
erratically or can be damaged when subjected to lightning induced
transients. Although no system is completely immune from light-
ning transients and interference, proper grounding will reduce sus-
ceptibility. Overhead or outside aerial wiring is not recommended,
due to an increased susceptibility to nearby lightning strikes. Con-
sult with the Technical Services Department if any problems are
anticipated or encountered.
Disconnect AC power and batteries prior to removing or inserting
circuit boards. Failure to do so can damage circuits.
Remove all electronic assemblies prior to any drilling, filing,
reaming, or punching of the enclosure. When possible, make all
cable entries from the sides or rear. Before making modifications,
verify that they will not interfere with battery, transformer, or printed
circuit board location.
Do not tighten screw terminals more than 9 in-lbs. Over-tighten-
ing may damage threads, resulting in reduced terminal contact
pressure and difficulty with screw terminal removal.
This system contains static-sensitive components. Always
ground yourself with a proper wrist strap before handling any cir-
cuits so that static charges are removed from the body. Use static
suppressive packaging to protect electronic assemblies removed
from the unit.
Follow the instructions in the installation, operating, and pro-
gramming manuals. These instructions must be followed to avoid
damage to the control panel and associated equipment. FACP
operation and reliability depend upon proper installation.
Canadian Requirements
This digital apparatus does not exceed the Class A limits for
radiation noise emissions from digital apparatus set out in
the Radio Interference Regulations of the Canadian Depart-
ment of Communications.
Le present appareil numerique n'emet pas de bruits radio-
electriques depassant les limites applicables aux appareils
numeriques de la classe A prescrites dans le Reglement sur
le brouillage radioelectrique edicte par le ministere des
Communications du Canada.
Precau-D1-9-2005
3
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