Leviton OSSMT-GD Install Manual

WARNINGS AND CAUTIONS:

• To be installed and/or used in accordance with appropriate electrical codes and regulations.
• If you are unsure about any part of these instructions, consult a qualified electrician.
• Controlling a load in excess of the specified ratings will damage the unit and pose risk of fire, electric shock, personal injury or death.
Check your load ratings to determine suitability for your application.
• Do not install this unit to control a receptacle.

TOOLS NeeDeD TO INSTALL yOUR SeNSOR

Slotted/Phillips Screwdriver Electrical Tape
Pliers Cutters
Small Slotted Screwdriver
FeATUReS
• Leviton's Decora style design
®
• Sensor can be ganged together with other units in a multiple-switch
wall plate.
• Self-Adaptive Technology adjusts to occupancy patterns of use in
auto adapt mode.
• The Adapting Time-out walk-through feature prevents lights from
remaining ON for an extended period after only a momentary
occupancy.
• Switches a single load circuit.
• One Push-Button which provides manual ON/OFF switching at
any time.
• Adjustable horizontal field of view.
• Integrated photocell prevents lights from turning ON when room is
adequately illuminated by natural light.
• True Zero-Cross relay provides maximum contact life and
compatibility with electronic ballasts.
• Dual detection technology, both Passive Infrared and Ultrasonic.
Can be configured as Ultrasonic Only by disabling Passive
Infrared.
DeSCRIpTION
Leviton's Designer Multi-Technology Wall Switch Occupancy Sensor,
Cat. No. OSSMT-GD, is designed to detect motion using the passive
infrared (PIR) sensor from sources (such as a person entering a
room) within its field-of-view (monitored space) and automatically
switch lights ON. The Occupancy Sensor senses motion within its
maximum coverage area of 2400 sq. ft (223 m 2 ). The ultrasonic (US)
sensors work with the PIR to keep the lights ON when occupied. The
controlled lights will remain ON until no motion is detected and the
scheduled time-delay has expired, at which point the lights will be
turned OFF. In adapting time-out mode the sensor adapts its time
delay settings to the occupancy patterns of a room.
The Cat. No. OSSMT-GD is an Occupancy Sensor that is designed to
control a single lighting control circuit and provide the energy savings
of an occupancy sensor. This device does not contain a neutral
conductor. It is intended for use in retrofit applications where a neutral
is not available in the wall box.
The OSSMT-GD is a single relay device, which can be Auto ON or
Manual ON. The device contains a photocell that provides an Ambient
Light Hold Off function. The device is configurable for either Ultrasonic
with PIR or Ultrasonic Only modes of operation.
Cat. No. OSSMT-GD is eTL listed, ceTL listed and conforms to
California Title 24 requirements.
The PIR Occupancy Sensor uses a small semiconductor heat detector
that resides behind a multi-zone optical lens. This Fresnel lens
establishes dozens of zones of detection. The Sensor is sensitive to the
heat emitted by the human body. In order to initially trigger the Sensor,
the source of heat must move from one zone of detection to another.
The device is most effective in sensing motion across its field-of-view
and it is less effective sensing motion towards or away from its field-of-
view). Keep this in mind when selecting the installation location (refer
to Field-of-View diagrams).
Multi-Technology Designer Wall Switch Occupancy Sensor
Incandescent/Tungsten: 800W @ 120V
Compatible with incandescent lamps, low-voltage lighting with electronic and magnetic transformers, electronic and magnetic fluorescent ballasts, and fans.
The US Occupancy Sensor uses a non-audible, high frequency (40kHz)
to sense Doppler shifts caused by motion in the space. The US is more
sensitive to small motion and does not rely on line of sight for detection.
If both sensors have not detected any motion for the set timeout period,
the relay and its corresponding load will be turned OFF.
Note that occupancy sensors respond to rapid changes in temperature,
so care should be taken not to mount the device near a climate control
source (i.e. radiators, air exchanges, and air conditioners). Hot or cold
drafts will look like body motion to the device and will trigger it if the unit
is mounted too close. It is recommended to mount the Occupancy
Sensor at least 6 feet away from a climate control source.
In addition, it is also recommended NOT to mount the Occupancy Sensor
directly under a large light source. Large wattage bulbs (greater than
100W incandescent) give off a lot of heat and switching the bulb causes
a temperature change that can be detected by the device. Mount the
Occupancy Sensor at least 6 ft. away from large bulbs. If it is necessary
to mount the device closer, lower the wattage of the bulb directly
overhead.

INSTALLING yOUR SeNSOR

NOTe: Use check boxes when Steps are completed.
WARNING:
TO AVOID FIRe, SHOCk, OR DeATH; TURN
Step 1
OFF pOWeR at circuit breaker or fuse and test that power is
off before wiring!

Identifying your wiring application

Step 2
(most common):
2
2
4
1
3
3
1
Single-pole 3-Way
1. Line (Hot) 1. Line or Load (See important*
2. Ground instruction)
3. Load 2. Ground
3. First Traveler – note color
4. Second Traveler – note color
IMpORTANT: For 3-Way applications, note that one of the screw
terminals from the old switch being removed will usually be a different
color (Black) or labeled Common. Tag that wire with electrical tape and
identify as the common (Line or Load) in both switch wall boxes.
Single Pole (One Location) or Multi-Location
California Title 24 2005 Compliant
Cat. No. OSSMT-GD
Ballast: 1200VA @ 120V Ballast: 2700VA @ 277V
Operating Temperature Range: 0°C to 50°C
Relative Humidity: 20% to 90% non-condensing
No Minimum Load Required

INSTALLATION INSTRUCTIONS

WARNINGS AND CAUTIONS:
• The OSSMT-GD Occupancy Sensor is intended to replace a standard single-pole Decora wall switch.
• Do not touch the surface of the lens. Clean outer surface with a damp cloth only.
• Disconnect power at circuit breaker or fuse when servicing, installing or removing fixture.
• Use this device only with copper or copper clad wire. With aluminum wire use only devices marked CO/ALR or CU/AL.

preparing and connecting wires:

Step 3
Strip Gage
9/16"
(measure bare
(1.4 cm)
wire here)
Cut
(if necessary)
• Pull off pre-cut insulation from sensor leads.
• Make sure that the ends of the wires from the wall box are straight
(cut if necessary).
• Remove insulation from each wire in the wall box as shown.
Installing your Sensor – Single-pole Application:
Step 4
NOTe:
The Cat. No. OSSMT-GD requires a ground wire to operate properly.
If there is no ground wire, ensure electrical box is grounded and attach
ground wire to box with a screw. If the ground wire is floating this device
will not work.
Sensor
Green
2
3
Blue
1
Black
Sensor
Blue
Black
Black (Hot) Black
Load
Line
120VAC, 60Hz
Green
White
Ground
Neutral (White)

WIRING SeNSOR:

Connect wires per WIRING DIAGRAM as follows: Screw wire connector
on clockwise making sure there are no bare conductors below the wire
connectors. Secure each connector with electrical tape.
• Green or bare copper wire in wall box to Green lead.
• Line Hot wall box wire to Black lead.
• Load wall box wire to Blue lead.
NOTe: Allow 1 minute for warm-up after connecting and energizing.
Motor: 1/4hp @ 120V
Installing your Sensor – 3-Way Wiring Application:
Step 5
NOTe: The Cat. No. OSSMT-GD requires a ground wire to operate
properly. If there is no ground wire, ensure electrical box is grounded and
attach ground wire to box with a screw. If the ground wire is floating this
device will not work.
Sensor 1 Sensor 2
Green Green
2 2
4
4
Blue Blue
1
3
Black Black
1
3
Sensor 1 Sensor 2
Black (Hot) Black
Blue Blue Black
Black
Line
120VAC, 60Hz
Load
Green Green
White
Ground Ground
Neutral (White)
NOTe: Sensor 1 must be installed in a wall box that has both a LINE Hot
and a Ground connection. Sensor 2 must be installed in a wall box that
has both a Load and a Ground connection.
If you are unsure about any part of these instructions, consult a qualified
electrician.
NOTe: Either sensor can turn the lights ON. Both sensors must time out
to OFF or both manual buttons must be pressed for the lights to go OFF

WIRING SeNSOR 1:

Connect wires per WIRING DIAGRAM as follows:
• Green or bare copper wire in wall box to Sensor 1 Green lead.
• Line Hot (common) wall box wire identified (tagged) when removing old
switch and First traveler from Sensor 2 to Sensor 1 Black lead.
• Second Traveler wall box wire from Sensor 2 to Sensor 1 Blue lead.

WIRING SeNSOR 2:

Connect wires per WIRING DIAGRAM as follows:
• Green or bare copper wire in wall box to Sensor 2 Green lead.
• Load wall box wire identified (tagged) when removing old switch and
Second Traveler from Sensor 1 to Sensor 2 Blue lead.
• First Traveler Line Hot from Sensor 1 to Sensor 2 Black lead.
NOTe: Allow 1 minute for warm-up after connecting and energizing.
DI-0XX-OSSMT-00A
Testing your Sensor prior to completely
Step 6
mounting in wall box:
Wall surface

Mounting

screws
(2 places)
Sensor
NOTe: Dress wires with a bend as shown in diagram to relieve stress
when mounting device.
• Position all wires to provide room in outlet wall box for device.
• Partially secure device using long mounting screws provided.
• Restore power at circuit breaker or fuse.
NOTe: Allow 1 minute for warm-up after energizing.
NOTe: All models of the OSSMT-GD are factory preset to work
without any adjustments. If necessary, adjust the Blinders and PIR
Range Control to stop any unwanted activation of the lights (refer
to FeATUReS section).
• For additional Time Control Settings (refer to the SeTTINGS section).
NOTe: To avoid PERMANENT DAMAGE to the unit, be careful
NOT TO OVERTURN the control knobs or levers when setting the
Sensor. The controls can be accessed by removing the wallplate
(if applicable) and control panel cover (refer to Control panel
Diagram). Use a small straight blade screwdriver to adjust knobs
and blinder levers.
NOTe: DO NOT press in on blinder levers or use excessive force
(refer to Control panel Diagram).
• Attach the Control Panel cover when the desired settings are
complete.
If lights do not turn ON, refer to the TROUBLeSHOOTING section.
FeATUReS
NOTe: To access control settings, remove the control panel cover.
If necessary, remove the warning label that covers the adjustment
dials (refer to Control panel Diagram).
Factory Settings: The sensor is shipped from the factory to work in
almost all situations, without any added adjustments. The factory settings
are: Blinders open, 10 minutes fixed Time-Out, Lights always turn ON
regardless of existing light levels, Medium passive infrared (PIR) range,
and High Ultrasonic range. The PIR and ultrasonic technologies are both
active.
Blinders: The blinders are two independent shutters that can narrow
the field-of-view from a maximum of 180° down to 32°. The blinders are
operated by moving the blinder levers towards or away from the center of
the Sensor. The blinder levers can be found above the control dials in the
control panel (refer to Control panel Diagram).
Time-Outs: The Sensor has three types of Time-Outs: Fixed, Adapting,
and Walkthrough.
• Fixed Time-Out: The value of this Time-Out is user selected
through the use of the Time Control Setting (refer to Control Panel
Diagram and Time-Out Settings).