
®
English
P/N 031260 Rev C 03/13
* 180° field of view
** 360° field of view
Occupancy Sensor
LOS-C Series
Installation Instructions
Description
The LOS-C Series of ceiling-mounted sensors incorporate ultrasonic (CUS), infrared (CIR), and dual
technologies (CDT). They integrate into LutronR systems or function as stand-alone controls using a
LutronR power pack.
Features
• Intelligent, continually adapting sensors
• 20 to 24 V-, IEC PELV/NECR, 33 mA nominal
• 450 ft2 to 2000 ft2 (42 m2 to 140 m2) coverage, as indicated in model number (when mounted on 8 ft to 12 ft /
2.4 m to 3.7 m ceiling)
• Dry contact closure available on -R models
• LED indicators: Ultrasonic (US)-green, Infrared (IR)-red, Dual Tech (DT)-red and green
• For indoor use only
Coverage and Placement
• The occupant sensor must have an unobstructed view of the room. Do not mount behind or near tall cabinets,
shelves, hanging fixtures, etc.
• For -CIR models, do not place sensor within 4 ft (1.2 m) of air vents, air handlers, windows, fans, etc., as this
may cause false triggering.
• For -CDT and -CUS models, do not place sensor within 6 ft (1.2 m) of air vents, air handlers, windows, fans,
etc., as this may cause false triggering.
• If installing a 180° occupant sensor, place the sensor on the same wall as the doorway so that hallway traffic
will not affect the sensor; otherwise, place in center of room.
• Closely follow the diagrams for major and minor motion coverage.
• Decrease total coverage area by 15% for “soft“ rooms (e.g. heavy draperies or heavy carpeting).
• Indicated range is when unit is mounted on an 8 ft to 12 ft (2.4 m to 3.7 m) ceiling.
(U)LOS-CUS-500 / 1000 / 2000
(U)LOS-CIR-450 / 1500
(U)LOS-CDT-500 / 500R / 1000 / 1000R / 2000 / 2000R
IEC PELV/NECR Class 2 Devices
Model US Minor Motion US Major Motion IR Minor
Motion
IR Major
Motion
CUS-500 * 16 ft x 16 ft (4.9 m x 4.9 m) 22 ft x 22 ft (6.7 m x 6.7 m) NA NA
CUS-1000 * 23 ft x 23 ft (7.0 m x 7.0 m) 32 ft x 32 ft (9.8 m x 9.8 m) NA NA
CUS-2000 ** 23 ft x 45 ft (7.0 m x 13.7 m) 32 ft x 64 ft (9.8 m x 19.8 m) NA NA
CIR-450 ** NA NA 6.5 ft (1.9 m) 12 ft (3.7 m)
CIR-1500 ** NA NA 12 ft (3.7 m) 22 ft (6.7 m)
CDT-500 * 23 ft x 16 ft (7.0 m x 4.9 m) 32 ft x 22 ft (9.8 m x 6.7 m) 12 ft (3.7 m) 22 ft (6.7 m)
CDT-1000 * 23 ft x 23 ft (7.0 m x 7.0 m) 32 ft x 32 ft (9.8 m x 9.8 m) 12 ft (3.7 m) 22 ft (6.7 m)
CDT-2000 ** 23 ft x 45 ft (7.0 m x 13.7 m) 32 ft x 64 ft (9.8 m x 19.8 m) 12 ft (3.7 m) 22 ft (6.7 m)
Range Diagram and Dimensions
US Major Motion
US Minor Motion
US
Minor
Motion
US
Major
Motion
IR Minor Motion
IR Major Motion
US - Ultrasonic
IR - Infrared

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Mounting Plate Dimensions
Using the Infrared Mask
Center Ceiling Mount
(Mask blocks sensor
seeing out doorway
into hall)
Corner Ceiling Mount
(No mask needed)
Typical Mask Patterns
Conference
Room Mask
180° Mask Full Mask
Rectangular
Areas
Over the
Door
Specific
Areas You
Wish to Mask
Normal Mounting:
Insert ACAK into mounting bracket and twist
90˚ to lock in place. Drill through ceiling tile with
assembly,using the cutter end of the threaded
mounting post. Secure with washer and nut.
Mounting to Non-Standard Ceiling/Fixture:
Drill wiring routing hole and (2) mounting holes using
Mounting Bracket as template. Secure twist-lock
cover plate using mounting screws, nuts, and
washers (included).
Auto/Manual
Threshold
LED Motion Indicator
Reset Learned Settings
Strong Airflow Compensation
Over Doorway Installation
Timer Adjust
Auto Sensitivity
1
2
3
4
Sensor Adjustments
Override Settings
1
2
3
4
B
Number of Sensors 1 2 3 1 2 1
Number of Auxiliary
Power Packs
000112
22 AWG 750 ft 375 ft 250 ft 375 ft 250 ft 250 ft
0.5 mm
2
365 m 180 m 120 m 90 m 120 m 120 m
20 AWG 1200 ft 600 ft 400 ft 600 ft 400 ft 400 ft
0.75 mm
2
730 m 365 m 240 m 365 m 240 m 365 m
18 AWG 2400 ft 1200 ft 800 ft 1200 ft 800 ft 800 ft
Wire Lengths (when powered by power pack)
Installation and Mounting
4.2 in
(106.6 mm)
0.52 in
(13.3 mm)
2.5 in
(63 mm)
ONOFF
Off (Default) On
Automatic (Normal) Manually On/Off (Override)
Auto Threshold Adjustment High Sensitivity (Low turn-on threshold)
Lights indicate motion Disable LED Indicator
Retain Settings (Normal) Erase all learned settings; Restart Learning (Toggle On)
ONOFF
Off (Default) On
Disable Compensation (Normal) Enable Compensation
No (Normal) Yes (Use increased turn-on threshold)
Adjust timer Automatically Use Manual Setting
Adjust Sensitivity Automatically Adjust Sensitivity Manually
A
Cutter end
Pre-installation
WARNING: SHOCK HAZARD. May result in death or serious injury.
Disconnect power before servicing or installing.
1. For installation by a qualified electrician in accordance with national and local codes and the following instructions.
2. Use copper conductors only
3. Do not connect this product to line voltage/mains cable
4. For indoor use only.
5. Check to see that the device type and rating is suitable for the application.
6. Do not install if product or lens have any visible damage.
7. If moisture or condensation is evident, allow the product to dry completely before installation.
Wiring Sensor:
Route wiring through ACAK/ceiling tile. Attach the sensor body
to the cover plate by aligning the arrows and twist locking into
place. Connect wiring with twist on connectors.
ACAK
Acoustic Ceiling
Adaptor Kit (optional)