Philips OccuSwitch LRM1771 Installation Manual Download Page 1

Installation Guide

OccuSwitch Wireless  Sensor

LRM1771 (Corner sensor), LRM1776 (Wall sensor),
LRM1766 (Corridor sensor)

Installation Steps

1  Install wall device (see separate instructions)
2  Install sensor
3  Link devices
4  Configure, test and finish

Product Description

The OccuSwitch™ Wireless wall mounted sensors are part 
of the OccuSwitch Wireless system. This system automatically 
controls the lights based on occupancy and daylight. The system 
can consist of multiple parts: wall-mounted sensors, ceiling 
mounted sensors and wall-mounted power handling devices 
(switch or dimmer). The switch will turn the lights on and off 
based on the information received from the wireless occupancy 
sensor and the available daylight. The dimmer will dim lights up 
and down to the appropriate intensity, based on the available 
daylight in the space in sensor view. The dimmer can also 
manually dim the lights.

FCC/IC compliance statement

This device complies with part 15 of the FCC rules for the United 
States and Industry Canada (IC) license-exempt RSS standard(s). 
Operation is subject to the following two conditions: (1) This 
device may not cause harmful interference, and (2) this device 
must accept any interference received, including interference that 
may cause undesired operation. Any changes or modifications not 
expressly approved by Philips could void the user’s authority to 
operate this equipment. This product is intended for commercial 
use only.

Déclaration de conformité à la FCC/IC

Ce dispositif est conforme à la partie 15 des règles de la 
Federal Communications Commission (FCC) des États-Unis et 
d’Industrie Canada (IC) exempts de licence RSS norme(s). Son 
fonctionnement est assujetti aux deux conditions suivantes : (1) 
Ce dispositif ne doit pas provoquer de brouillage préjudiciable, 
et (2) il doit accepter tout brouillage reçu, y compris le 
brouillage pouvant entraîner un mauvais fonctionnement. Tous 
les changements ou modifications non expressément approuvés 
par Philips, sont susceptibles d’annuler le droit de l’utilisateur à se 
servir de cet équipement. Ce produit est exclusivement destiné à 
un usage commercial.

Key figures

Sensor Coverage Area

Wall-mounted height range: 6.9ft to 8.ft (2.1 to 2.5m)
For a typical height of 7.5 ft (2.3m): 
•  LRM1771 Corner coverage: 

Minor motion: 35’x 35’(10.7m x 10.7m) 
Major motion: 50’ x 50’ (15.3m x 15.3m)

•  LRM1766 Corridor coverage: 

Major motion: 150’ L x 20’ W (45.8m x 6.1m)

•  LRM1776 Wide angle coverage: 

Minor motion: 35’x35’ (10.7m x 10.7m) 
Major motion: 50’x50’ (15.3m x 15.3m)

Larger areas will require multiple sensors.

Wireless Range

Wall device to sensor: 50ft (17m)

Network Size

16 Sensors, Switches & Dimmers

Light Range

18.58 - 92.90 fc at work plane

Safety

Parts of the switch & dimmer carry line power, which is 
a potential lethal voltage. This product was designed and 
manufactured to ensure maximum safety during operation and 
service. Always read these safety instructions before installing, 
maintaining or servicing the product, and strictly comply with 
these instructions. 

General

•  If you are unsure about any part of these installation 

instructions, consult a qualified electrician.

•  The devices are designed for indoor use only.
•  To avoid short circuits, do not expose this product to rain or 

condensing moisture. Short circuit may cause fire or electric 
shock hazard. Operate the devices between 41°F and 104°F 
(5°C and 40°C) ambient temperature. .

•  Use only a soft damp cloth to clean, never use any abrasive 

or chemical cleaner.

•  Whenever it is suspected that an unsafe condition exists, 

switch off power at the circuit breaker and replace the 
device. Safety is likely to be impaired if, for example, the 
equipment fails to perform the intended functions or if the 
equipment shows visible damage. Do not paint the devices.

Wall Device (Switch & Dimmer) 

•  Disconnect power at circuit breaker or fuse when servicing, 

installing or removing the fixture of the switch / dimmer.

•  Only use with copper or copper-clad wire.
•  Wire switch / dimmer to the line power according to the 

wiring scheme in the switch / dimmer manual.

Sensor

•  The sensor cannot control loads directly, use compatible 

switch or dimmer.

•  Use only high-quality AA size, 3.6V Lithium-thionyl chloride 

batteries in sensors. Using improperly rated batteries may 
damage the sensor or fail to operate properly.

•  Dispose of used batteries promptly. Keep batteries away from 

children, do not disassemble and do not dispose of in fire.

1x

1x

2x

2x

1x

Sensor box contents

Tools required (for entire install)

Wall Devices & Wall Sensor

30

1

+

2  Install sensor

1  Set dial on back of sensor to 1 to set time delay to 15 seconds 

for testing (optional).

2  Install battery - make sure you match polarity.
3  Choose the best location on the wall to mount sensor. The 

sensor should cover the occupied area. If the area is too large, 
more sensors can be added and linked to the same switches and 
dimmers. The devices should be linked after mounting to ensure 
that they are properly linked. To do this, go to Section 3 Link 
devices.

4  Attach the sensor to mounting plate.
5  Test the coverage pattern.
6  Before finally mounting the sensor, check the time delay dial is at 

the required setting (common setting is 10 to 15 minutes).

7  Commission the system, see section 4 Configure, test & finish.

3  Link devices

Note:

 After the wall device is installed and power has returned, test 

all wall devices by pressing the rocker switch ON/OFF. All switches/
dimmers should control connected loads. If they do not control the 
lights, check the wiring.

Create a Network: 

To create a wireless network by combination of 

up to 16 switches, dimmers and sensors, take the following steps.

Hint:

 To prevent cross-linking rooms, only one person should create 

the links.

Action

Test On/Off and set to Off
1   Briefly press the LINK 

button (Top of switch/ 
dimmer) for linking mode.

2   Briefly press the LINK 

button on the sensor to add 
it to the network.

3   Briefly press the LINK 

button on additional devices 
to add to network.

4   Briefly press the LINK 

button on first switch/ 
dimmer again to exit.

Results

Lights turn off
Green LED on the switch/
dimmer starts blinking.

Lights turn On and sensor’s 
green LED turns on.

Green LED on each device 
turns On to confirm link.

Green LED on the switch/
dimmer stops blinking.

4   Optional step: Test the connection of a sensor after linking by briefly 

pressing the LINK button on sensor. The switches and dimmers that 
are connected to the sensor will switch their lights off and on.

WARNING: 

The product is intended to control lighting loads only. 

Do NOT use to control equipment that could create hazardous 
situations, like entrapment. For examples, do NOT install this 
product to control motorized gates, garage doors, industrialdoors, 
microwave ovens, heating devices, etc.

WARNING:

 It is the installer’s responsibility to ensure that the 

equipment being controlled is visible from every control location 
and that only suitable equipment is connected to these controls. 
Failure to do so could result in serious injury or death.

CAUTION: 

The battery used with the sensor device may present 

a risk of fire or chemical burn if mistreated. Do not recharge, 
disassemble, heat above 100°C, or incinerate. Replace battery with 
Lithium-thionyl chloride (AA 3.6V) only. Use of another battery may 
present a risk of fire or explosion.

 

LEDs Indicators on Sensors and Wall Devices

 Indication 

 

Meaning 

Device

  Red, Yellow, Green  

Device starts up or resets to factory defaults  

All

  Green 

Blink for 30 sec.   Asks a device to show all linked devices (Action Menu #1) 

All

   

Flashing  

Device is in linking mode until LINK button is pushed again  

Switch Dimmer

  Red Blink 

Irregular 

Sensors shows coverage  

Sensor

  Yellow Blink  

2 sec. rate  

Device is in the configuration mode (see section 4: Configure, Test and Finish)  Switch Dimmer

  Red Blink 

Regular  

A linked device is missing (see Link Devices 

 Troubleshooting) 

Switch  Dimmer

  Red Blink  

2 Sec. rate  

Device is in the Action menu (see 4 Configure, Test and Finish) 

All

  Steady Yellow 

Always ON 

Lights are switched to Manual mode. Automatic mode returns upon vacancy  Switch Dimmer

   

 

timeout or after holding down the ON rocker until yellow LED goes out.

  Red Blink  

5 Sec Rate  

Sensor Battery Low  

Switch Dimmer

  Red Blink  

2 Sec. Rate  

During link test = low battery  

Sensor

Sensor mounting Plate

The sensor mounting plate can be attached to the wall using the 
supplied hardware. Ensure that the plate is mounted with the arrow 
pointing in the correct direction (see diagram above). There are 
additional ‘knock outs’ which can be used to mount the sensor in a 
corner, or at an angle. After the mounting plate is installed, attach the 
sensor by inserting into the mounting plate and clicking into place.

Sensor placement guidelines

The sensor should be mounted in such a way that:
•  Small movements are detected for the required space
•  Large movements are detected for the entire room, and 

in particular for the area near the doorway. Motion from 
adjacent areas, e.g. the hallway, should not be detected.

•  If Daylight Override is used, the lens of the sensor must not  

receive direct light from either the sun or from artificial lighting.

•  The sensor should not be placed close to heat sources 

(especially incandescent lamps) or HVAC exhausts.  

click

Troubleshooting

See LEDs and buttons description.
•   When linking, if Red LED on the sensor turns On, then linking 

failed. Try again and move the sensor closer to the switch,  
(within 50ft / 17m.)

•   When linking, if Red LED on the sensor starts to blink, you 

pressed and held the LINK button too long. The sensor has 
entered the ACTION menu. Press and hold the link button to 
exit.

Warning: 

If the green LED starts blinking on another switch/dimmer, 

that switch/dimmer is now also in linking mode, starting its own 
network. Press the LINK button on that switch/dimmer and try 
the whole procedure again. If the problem persists, the distance 
between the new switch/dimmer and the existing switch may out of 
Wireless Range (see Key figures).

Note: 

If the yellow LED is turned ON after linking, the switch/

dimmer is in manual override. To return to automatic operation 
hold down the ON rocker until the yellow LED goes out (15 sec.). 
Otherwise, when the room is vacant and the sensor times out, it will 
return to automatic mode and the yellow LED will go off.

RESET to factory default settings - If the links or set-up are not 
correct they can be cleared in each device by holding down the 
LINK/ACTION Button for about 10 seconds. Release when LED’s 
briefly blink all together. After releasing they step from RED - 
YELLOW - GREEN.

50'

@ 7.5' height

35'

LRM1776

50'

35'

@ 7.5' height

LRM1771

50'

35'

50'

35'

150'

@ 7.5' height

LRM1766

20'

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