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ADEMCO 4278EX-SN Installation Instructions page 4

Passive infrared motion detector

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THE LIMITATIONS OF THIS PASSIVE INFRARED MOTION DETECTOR
While the Intrusion Detector is a highly reliable intrusion detection device, it does not offer guaranteed protection against
burglary. Any Intrusion Detection device is subject to compromise or failure to warn for a variety of reasons:
¥ Passive Infrared Motion Detectors can only detect intrusion within the designed ranges as diagrammed in this instal-
lation manual.
¥ Passive Infrared Motion Detectors do not provide volumetric area protection. They do creat multiple beams of protec-
tion, and intrusion can only be detected in unobstructed areas covered by those beams.
¥ Passive Infrared Detectors cannot detect motion or intrusion that takes place behind walls, ceilings, floors, closed
doors, glass partitions, glass doors, or windows.
¥ Mechanical tampering, masking, painting or spraying of any material on the mirrors, windows or any part of the opti-
cal system can reduce the detection ability of the Passive Infrared Motion Detector.
¥ Passive Infrared Detectors sense changes in temperature. However, as the ambient temperature of the protected area
approaches the temperature range of 32û to 40ûC (90¡ to 104¡F), the detection performance can decrease.
¥ This Passive Infrared Detector will not operate without appropriate DC power connected to it, or the DC power is
improperly connected (i.e., reversed polarity connections).
¥ Passive Infrared Detectors, like other electrical devices, are subject to component failure. Even though they are
designed to last as long as ten years, the electronic components could fail at any time.
We have cited some of the most common reasons that a Passive Infrared Motion Detector can fail to catch intrusion.
However, this does not imply that these are the only reasons, and therefore it is recommended that weekly testing of this
type of unit, in conjunction with weekly testing of the entire alarm system, be performed to ensure that the detectors are
working properly.
Installing an alarm system may make one eligible for lower insurance rates, but an alarm system is not a substitute for
insurance. Homeowners, property owners and renters should continue to act prudently in protecting themselves and con-
tinue to insure their lives and property.
We continue to develop new and improved protection devices. Users of alarm systems owe it to themselves and their
loved ones to learn about these d e v e l o p m e n t s .
Alarm Device Manufacturing Company, a Division of Pittway Corporation, and its divisions, subsidiaries, and affil-
iates (ÒSellerÓ), 165 Eileen Way, Syosset, new York 11791, warrants this sensor to be in conformance with its own
plans and specifications and free from defects in materials and workmanship under normal use and service for 72
months from the date stamp control on the product. SellerÕs obligation shall be limited to replacing, or repairing at
its option, free of charge for materials or labor, a sensor which is proved not in compliance with SellerÕs specifica-
tions or proves defective in materials or workmanship under normal use and service. Seller shall have no obliga-
tion under this Limited Warranty or otherwise if the sensor is altered or improperly repaired or serviced by anyone
other than Ademco factory service. In case of defect, return the sensor to an authorized Ademco distributor for an
immediate replacement.
THERE ARE NO WARRANTIES, EXPRESS OR IMPLIED, OF MERCHANTABILITY, OR FITNESS FOR A PAR-
TICULAR PURPOSE OR OTHERWISE, WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF.
IN NO CASE SHALL SELLER BE LIABLE TO ANYONE FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES
FOR BREACH OF THIS OR ANY OTHER WARRANTY, EXPRESS OR IMPLIED, OR UPON ANY OTHER BASIS
OF LIABILITY WHATSOEVER, EVEN IF THE LOSS OR DAMAGE IS CAUSED BY THE SELLER'S OWN NEGLI-
GENCE OR FAULT.
Seller does not represent that its sensor may not be compromised or circumvented; that the sensor will prevent
any personal injury or property loss by burglary, robbery, fire or otherwise; or that the sensor will in all cases pro-
vide adequate warning or protection. Buyer understands that a properly installed and maintained alarm may only
reduce the risk of a burglary, robbery, fire or other events occurring without providing an alarm, but it is not insur-
ance or a guarantee that such will not occur or that there will be no personal injury or property loss as a result.
CONSEQUENTLY, SELLER SHALL HAVE NO LIABILITY FOR ANY PERSONAL INJURY, PROPERTY DAMAGE
OR OTHER LOSS BASED ON A CLAIM THE SENSOR FAILED TO GIVE WARNING. However, if Seller is held
liable, whether directly or indirectly, for any loss or damage arising under this Limited Warranty or otherwise,
regardless of cause or origin, Seller's maximum liability shall not in any case exceed the purchase price of the sen-
sor, which shall be the complete and exclusive remedy against Seller. This warranty replaces any previous war-
ranties and is the only warranty made by Seller on this sensor. No increase or alteration, written or verbal, of the
obligations of this Limited Warranty is authorized.
WARNING!
ADEMCO SIX YEAR LIMITED WARRANTY
ALARM DEVICE MANUFACTURING CO.
A DIVISION OF PITTWAY CORPORATION
165 Eileen Way, Syosset, New York 11791
Copyright © 1995 PITTWAY CORPORATION
N4756–8V1 11/95

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