Frequently Asked Questions and Answers
Q. Why is the product called the i
3
™
series?
A. The i
3
™
series represents a breakthrough in detection solutions, based upon three “I” principles: Installation ease,
Intelligence, and Instant Inspection. Installation ease is the result of the plug-in design, featuring the Stop-Drop ’N
Lock
™
attachment, efficient wire management, and in-line terminals, all intended to reduce installation time.
Intelligence refers to intelligent features provided such as a remote maintenance signal, drift compensation, and
smoothing algorithms. These features minimize the likelihood of nuisance alarms. Instant inspection refers to the
way in which the i
3
detectors’ sensitivity can be measured, as well as the red and green LED’s that readily indicate
the status of the smoke detector.
Q. What models are included in the i
3
series?
A. The i
3
series now offers a full-line of detectors and accessories to address a broader range of applications. They
include:
Detector Type Model Number
Two-wire standard 2W-B
Two-wire standard with 135° F thermal 2WT-B
Two-wire sounder with 135° F thermal 2WTA-B
Two-wire Form C relay with 135° F thermal 2WTR-B
Four-wire standard 4W-B
Four-wire standard with 135° F thermal 4WT-B
Four-wire sounder with 135° F thermal 4WTA-B
Four-wire Form C relay with 135° F thermal 4WTR-B
Four-wire sounder, with Form C relay, 135° F thermal 4WTAR-B
Four-wire isolated thermal, with sounder, Form C relay 4WITAR-B
Accessories
Model Number
Loop test/maintenance module 2W-MOD2
Reversing relay/synchronization module RRS-MOD
Sensitivity reader SENS-RDR
Removal/replacement tool RT
Retrofit adapter bracket A77-AB2
Q. How does the new isolated thermal model operate?
A. The i
3
isolated thermal detector, model number 4WITAR-B, operates similarly to the 2112/24AITR. Specifically,
when the detector’s photoelectric chamber detects smoke, only a local alarm indication is provided. Conversely,
should the detector’s thermal sensor be activated, a general alarm condition will result.
Q. Is the 2W-MOD no longer available?
A. The 2W-MOD was replaced by the 2W-MOD2. This new accessory accommodates all 2-wire standard, sounder,
and relay i
3
detectors.
Q. Can the original 2W-MOD be used with the new i
3
sounder or Form C relay models?
A. No. The 2W-MOD cannot be used with the new i
3
sounder and Form C relay models. However, the new 2W-MOD2
can be used on all i
3
detectors, both old and new.
Q. Can the other i
3
accessories be used with the new i
3
sounder or Form C relay models?
A. All other i
3
accessories may be used with the new i
3
sounder and Form C relay models. This includes the sensitivity
reader, removal/replacement tool, and the retrofit adapter bracket.
Q. What is the RRS-MOD and what are its functions?
A. The RRS-MOD serves two purposes. First, it activates all i
3
sounders on a loop when one goes into alarm, by
reversing the polarity of the power circuit. This allows the capability of installing multiple i
3
sounder models on a
loop. Second, the RRS-MOD synchronizes the output of all i
3
detectors on the loop, to ensure a clear audible
signal.
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