LEGRAND Watt Stopper CI-355 Installation Instructions Manual

CI-355

360° Passive Infrared • Line Voltage

Occupancy Sensor

with Light Level feature

SPECIFICATIONS

Voltages ..............................................................120/230/277/347VAC

Load Ratings

@120VAC .................................................0-800W Ballast/Tungsten

@230 or 277VAC, 50/60Hz .....................................0-1200W Ballast

@347VAC, 50/60Hz ................................................0-1500W Ballast

Operating Temperature ................................ 32° to 131°F (0° to 55°C)

Light Level One-Step Adjustment .................................... 10FC–300FC

Time Delay Adjustment ............................................... 5 to 30 minutes

Walk-Through Mode ..............3 minutes if no activity after 30 sec.

Test Mode ............ 5 sec. upon intial power-up or DIP switch reset

PIR Coverage

Sensitivity Adjustment ................... Automatic or Low (DIP switch)

Model CI-355 ............................................................... up to 1200ft2

Model CI-355-1 .............................................................up to 500ft

2

U.S. Patents: 4,787,722

5,189,393

and Patent Pending

Santa Clara, CA 95050

Installation Instructions

Call 800.879.8585 for Technical Support

UNIT DESCRIPTION

The Watt Stopper CI-355 360° passive infrared (PIR) occupancy sensors turn
lighting systems on and off based on occupancy and ambient light levels. The
light level feature can be used to keep lights from turning on if the ambient light
level is sufficient.

SmartSet™ technology allows the sensor to be installed with minimal
adjustments. SmartSet automatically adjusts the time delay and PIR sensitivity to
usage patterns in the controlled space.

The sensors can be configured to turn lighting on, and hold it on as long as the
sensor detects occupancy. After no movement is detected for a user specified
or SmartSet time (5 to 30 minutes) the lights are switched off. A “walk-through”
mode can turn lights off after only 3 minutes, if no activity is detected after 30
seconds of an occupancy detection.

The CI-355 operates on 120VAC, 230VAC, 277VAC or 347VAC.

COVERAGE PATTERN

The CI-355 provides a 360° coverage pattern. Two lens patterns are available. The
CI-355 provides up to 1200 square feet of coverage and the CI-355-1 provides up
to 500 square feet of coverage. The coverage shown represents walking motion
at a mounting height of 8 feet. For building spaces with lower levels of activity or
with obstacles and barriers, coverage size may decrease.

8 ft

12 ft 12 ft 3 ft 3 ft 5 ft 5 ft 7 ft 7 ft 9 ft 9 ft

0

Typical

desk-top

level

24 ft

7.3m

44 ft

13.4m

8 ft

22 ft 13 ft 7 ft 3 ft 03 ft 7 ft 13 ft 22 ft

Typical

desk-top

level

CI-355 Coverage Pattern

(standard lens)

CI-355-1 Coverage Pattern

(high density, reduced range lens)

Visit our website for FAQs: www.wattstopper.com

PLACEMENT GUIDELINES

Depending upon obstacles such as furniture or partitions, the area of coverage
may be less or more than the sensing distances shown in the coverage pattern.
This must be considered when planning the number of sensors and their
placement. It is also recommended to place the sensor 4 to 6 feet away from air
supply ducts as rapid air currents or the differences in temperatures may cause
false activations.

Mount the sensor to the ceiling. The CI-355 is designed for a ceiling height of
about 8-10 feet. Mounting above or below this range will significantly affect the
coverage patterns. Be aware that as you decrease the mounting height, you
decrease the range and increase the sensitivity to smaller motions. Conversely,
when you increase the height, you increase the range and decrease the sensitivity
to smaller motions. At heights of more than
12-14 feet, you may start to significantly
reduce sensitivity. As a general rule, each
occupant should be able to clearly view the
sensor.

Often the best location to install a CI- 355 in
a closed office is off-center. Avoid placing
a sensor directly in line with an open door
through which it has a clear view out, as the
sensor may detect people walking by.

Masking the PIR Lens: Opaque adhesive tape is supplied so that sections of
the PIR lens can be masked. This restricts the sensor’s view and allows you to
eliminate PIR coverage in unwanted areas such as hallways outside of the desired
coverage area. Since masking removes bands of coverage, remember to take this
into account when troubleshooting coverage problems.

Open Office Area Coverage: To get
complete coverage in an open office area,
install multiple sensors so that there is
an overlap with each adjacent sensor’s
coverage area.

For open office areas with partitions it is
best to place sensors over intersection of
four workstations.

For large areas of coverage use multiple
sensors.

36'

36'

12'

18'