wattstopper PW-203 User manual

Santa Clara, CA 95050
800.879.8585
Installation Instructions
Specifications
Voltages .....................................................120/277VAC, 50/60Hz
Load Limits for each relay:
@120VAC........................0-800W tungsten or ballast, 1/6 HP
277VAC ......................................................... 0-1200W ballast
Load Type Compatibility:
Incandescent, fluorescent, magnetic or electronic ballast
Horsepower Rating (each relay)..................1/6 HP @120VAC
Time Delay Adjustment.......................................5 to 30 minutes
Walk-Through Mode.....3 minutes if no activity after 30 sec.
Test Mode............ 5 sec. for 10 min. with DIP switch setting
PIR Adjustment.................................... High or Low (DIP switch)
Light Level Adjustment ........................................... 8fc to 180+fc
Alerts ...........................................Selectable Audible & Visual
* Cover plate not included
US Patents: 5640113, 6617560
PW-203
Passive Infrared Multi-Way Dual Relay
Wall Switch Occupancy Sensor
PW-203*

UNIT DESCRIPTION AND OPERATION
The PW-203 Passive Infrared Multi-Way Dual Relay Wall Switch sensors use
advanced passive infrared (PIR) technology. The PW-203 contains two relays
and two ON/OFF buttons to allow control of one or two loads independently.
Pressing a button toggles the state of the corresponding relay.
The relays can also turn loads ON and OFF automatically with occupancy. They
can be set to manual or automatic-ON operation independently from each
other, allowing for bi-level control.
Up to four PW-203 sensors can be connected to the same circuit.
When set for automatic-ON, the first sensor to detect occupancy turns ON all
the lights that are connected to the same circuit. The occupant can turn OFF the
load at any time by pressing the ON/OFF button of any sensor that is connected
to the circuit. If the occupant forgets to turn OFF the lights, the last sensor to
detect occupancy turns them all OFF after the time delay expires.
A “walk-through” mode can turn lights OFF after only 3 minutes, if no activity is
detected after 30 seconds following an occupancy detection.
PW sensors contain a light level sensor. If adequate daylight is present, the
sensor holds the load OFF until light levels drop, even if the area is occupied. In
the PW-203, light level only affects the load on Relay 2. Users can overrule this
function by pressing the ON/OFF button. See Light Level Adjustment.
Visit our website for FAQs: www.wattstopper.com

Call 800.879.8585 for Technical Support
COVERAGE PATTERNS
Coverage testing has been performed according to the NEMA WD 7 guideline.
For best performance, use in spaces not larger than 15’ x 12’.
PIR Sensor
The sensor has a two-tiered, multi-cell viewing Fresnel lens with 180 degree
field of view. The red LED on the sensor flashes when the PIR detects motion.
Masking the lens
Opaque adhesive tape is supplied so that sections of the PIR sensor’s view can
be masked. This allows you to eliminate coverage in unwanted areas. Since
masking removes bands of coverage, remember to take this into account when
troubleshooting coverage problems.
PIR Coverage
7.5’
(2.2m)
15’
(4.5m)
20’
(6.1m)
35’
(10.6m)
Major motion
Minor motion
4’
(1.2m)
20’
(6.1m)
35’
(10.6m)
0
Top View
Side View

Shading indicates default operation and switch setting.
Time Delays
The PW sensor holds the load ON until no motion is detected for the selected
time delay. Both relays use the same delay. Select the time delay using DIP
switch settings.
Fixed Time Delay
(DIP 1 ON, 2 & 3 OFF)
Time delays are 5, 10, 15, 20 (default), 25, or 30 minutes.
See table in Installation section for DIP settings.
Test Mode
(DIP 1, 2, & 3 OFF)
A Test Mode with a short time delay of 5 seconds is
set when DIP switches 1, 2, & 3 are OFF. It cancels
automatically after ten minutes, or when you set a
fixed time delay. When the Test Mode times out, the
sensor will assume a 20 minute time delay. To restart
Test Mode, change the time delay setting to any fixed
amount and then return it to the Test setting.
Walk-Through
Mode
(DIP 4 ON)
The PW sensor turns the load OFF three minutes after
the area is initially occupied, if no motion is detected
after the first 30 seconds. If motion continues beyond
the first 30 seconds, the set time delay applies.
High (DIP #5 OFF) Default setting. Suitable for most applications.
PIR Sensitivity Adjustment
The PW sensor constantly monitors the controlled environment and
automatically adjusts the PIR to avoid common ambient conditions that can
cause false detections, while providing maximum coverage.
Reduces sensitivity by approximately 50%. Useful in
cases where the PIR is detecting movement outside of
the desired area (also consider masking the lens) and
where heat sources cause unnecessary activation.
Low, 50%
(DIP 5 ON)
Walk-Through
The Walk-Through mode shortens the time delay to reduce the amount of time
the load is ON after a brief moment of occupancy, such as returning to an office
to pick up a forgotten item then immediately exiting.
No Walk-Through
(DIP 4 OFF) Walk-Through mode disabled.
Visit our website for FAQs: www.wattstopper.com
Service Mode
(DIP 1, 2, & 3 ON)
Service bypasses occupancy & light level functions.
Control the load manually using ON/OFF button. Red
LED is always lit when the PW is in Service mode.

Auto ON
DIP 8 OFF
for Relay 1
DIP 9** OFF
for Relay 2
Alerts
The PW can provide audible and/or visible alerts as a warning before the load
turns OFF.
Turning ON Loads (ON Mode)
The relays are programmed independently for either Auto ON or Manual ON. In
either mode, the load can be turned ON or OFF using the ON/OFF button.
Unit will beep at one minute*, at 30 seconds and at 10
seconds before turning OFF load. When Walk-Through
is active, the unit beeps three times at 10 seconds
before the load goes OFF.
*If Visible Alert is also ON, the one-minute time-out
warning beep is replaced by the visible alert.
Audible
Alerts
(DIP 7 ON)
When only one minute is left in the time delay, the load
connected to the relay turns OFF for one second. This
provides a one minute warning before the load(s) are
turned OFF by the sensor.
Visible Alert
(DIP #6 ON)
No Visible Alerts
(DIP 6 OFF) No visible warnings provided.
No audible warnings provided.
No Audible Alerts
(DIP 7 OFF)
With an ON Mode DIP switch in the OFF position, the load turns
ON and OFF automatically based on occupancy. If the load is
turned OFF manually, Presentation Mode operation applies. This
prevents the load from turning ON automatically after it was
deliberately turned OFF. Pressing the button to turn lights ON
returns the sensor to Auto ON mode.
** Switch 9 default is ON for Manual ON functionality of Relay 2 to comply with
California Energy Commission Title 24 bi-level switching requirements.
Manual ON
DIP 8 ON
for Relay 1
DIP 9** ON
for Relay 2
With an ON Mode DIP switch in the ON position, the occupant
must press the ON/OFF button to turn ON the load. The sensor
keeps the load ON until no motion is detected for the selected
time delay. There is a 30 second re-retrigger delay. If occupancy
is detected during the delay, the sensor turns the load back ON.
After the re-trigger delay elapses the ON/OFF button must be
pressed to turn ON the load.
Call 800.879.8585 for Technical Support
Relay Default ON Mode DIP switch # Setting
PW-203 1 Auto ON 8 OFF
2 Manual ON 9 ON

Presentation Mode is a feature of the Auto ON mode. When both relays are
manually turned OFF the PW holds the lights OFF until no motion has been
detected for the duration of the Time Delay. With subsequent occupancy, the PW
turns the load ON. If both relays are ON and one relay is manually turned OFF
this relay remains OFF until both the Time Delay and retrigger delay expires for
the relay that is ON, after that time the ON Mode control settings again apply.
INSTALLATION
1. Make sure that the power has been turned OFF at the circuit breaker.
2. Connect wires to the PW flying leads as shown in the
wiring diagram. The ground wire (green) must be
fastened to ground for the sensor to work properly.
3. Attach the sensor to the wall box by inserting screws into
the two wide holes on the top and bottom of the attached
metal bracket. Match them up with the holes in the wall
box and tighten.
4. Turn the circuit breaker ON. Wait one minute, then push the Auto ON/OFF
switch for each load and the lights will turn ON. There is a delay due to initial
power-up of the sensor that only occurs during installation.
5. Test and adjust the sensor if necessary.
6. Attach the cover plate.
#12 – #14 AWG
Cu Wire Only
Strip Gage
1/2"
12.7mm
Visit our website for FAQs: www.wattstopper.com
WARNING
TURN THE POWER OFF AT THE CIRCUIT BREAKER
BEFORE INSTALLING THE SENSOR OR WORKING ON THE LOAD.
Ground
PW-203 PW-203
Junction Box Junction Box
Black (Line)
Red (Load 1)
Brown (Load 2)
Blue (Line)
White (Neutral)
Yellow (Traveler)
Load 1
Load 2
1
2
120-277V 50/60Hz
White (Neutral)
Black (Line)
PW-203 Wiring
Important: Wire the remote unit to the same branch circuit as the main unit
controlling the load. If relay 2 of the main unit cannot be controlled from the
remote unit, check wiring to be sure both units are on the same branch circuit.
Caution: Do not install this device if there is not at least 10 meters (30 feet) or
more of wire between the unit and the electrical service panel.

ADJUSTMENTS
DIP Switch Adjustments
Remove the wall plate. Remove the button cap by firmly squeezing together the
top sides of the button assembly. Gently pull it away from the unit.
When the adjustments are completed, replace the button cap by inserting its
hinges into the tabs on the main unit and then squeeze the top of the button
while pressing it into the unit. Reinstall the cover plate.
Sensor Light Level Adjustment
The light level can be set with loads ON or OFF. The light level feature operates
as a Hold OFF function, meaning that once the light level in a room reaches
a set point the lights will not turn ON until the light level drops below the set
point. In order to achieve the maximum energy savings that the light level
feature offers, pick a time during the day when there is enough ambient light
in the room to perform the necessary tasks without the aid of artificial light. In
order to set this as the threshold level of brightness so that the artificial lights
remain OFF, perform the following steps:
1) Make sure the room is lit appropriately.
2) Put the sensor into TEST mode using the Time Delay DIP switches.
3) Press and hold the ON/OFF button (Relay 1button on the PW-203) for 3
seconds, until you hear a beep.
4) Step away from the sensor. After 25 seconds a beep sounds, indicating that
the threshold level is set. This threshold is retained, even if power is lost,
until it is re-set or disabled. In the PW-203, light level control only affects
Relay 2.
5) Set the Time Delay DIP switches to the desired delay time.
To Disable Light Level Control
Press and hold the Relay 1button for 7 seconds, until a double beep sounds.
Reset
Use the DIP Switch Settings tables on the next page to return features to
factory settings. To reset the PW press and hold the ON/OFF button for 10
seconds, until a triple beep sounds. This resets the sensor and disables light
level control (the brightest ambient light will not hold the light OFF).

DELAY
PIR 50%
WALK
AUD. ALERT
RLY 1 MAN
RLY 2 MAN
VIS. ALERT
ON/OFF Buttons
Relay 1
Relay 2
DIP Switches
PIR Lens
Detection LED
DIP SWITCH SETTINGS
=ON =OFF =Factory Setting
8
Auto On
Manual On
Relay 1 Mode
9
Auto On
Manual On
Relay 2 Mode
5
High
Low, 50%
PIR Sensitivity
7
Disabled
Enabled
Audible Alert
4
Disabled
Enabled
Walk-Through
912345678
Time
Delay
Walk-Through
ON
Relay 1 Mode
Relay 2 Mode
Audible Alerts
PIR Sensitivity
Visible
Alerts
Test
10 minutes
15 minutes
20 minutes
25 minutes
30 minutes
Service
5 minutes
123
Time Delay
Service bypasses occupancy
& light level functions. Control the
load manually using ON/OFF button.
6
Disabled
Enabled
Visible Alert
Call 800.879.8585 for Technical Support
Button
Hinges Tabs

TROUBLESHOOTING
Lights do not turn ON with motion (LED does flash)
1. Press and release each button to make sure that the correct lights
come ON for each relay.
- If the lights do NOT turn ON, check wire connections, especially the
Load connection.
- If the lights turn ON:
Verify the correct On Mode is selected in DIP switches 8 and 9.
Check to see if light level control is enabled: cover the sensor
lens with your hand. If the lights come ON, adjust the light level
setting.
2. If lights still do not turn ON, call 800.879.8585 for technical support.
Lights do not turn ON with motion (LED does not flash)
1. Press and release each button to make sure that the correct lights
come ON for each relay. If the lights turn ON, verify that Sensitivity is
on High.
2. Check the wire connections.
- Verify the ground connection.
- Make sure line and load are not reversed.
- Confirm that connections are tightly secured.
3. If lights still do not turn ON, call 800.879.8585 for technical support.
Lights do not turn OFF
1. There can be up to a 30 minute time delay after the last motion is
detected. To verify proper operation, set DIP switch 1 to ON, then reset
switches 1, 2, and 3 to OFF to start Test Mode. Move out of view of the
sensor. The lights should turn OFF in approximately 5 seconds.
2. Verify that the sensor is mounted at least six feet (2 meters) away from
any heating/ventilating/air conditioning device that may cause false
detection. Verify that there is no significant heat source (e.g., high
wattage light bulb) mounted near the sensor.
3. If the lights still do not turn OFF, call 800.879.8585 for technical support.
Sensing motion outside desired areas
1. Select PIR Sensitivity – Low (DIP switch 5 = ON) if necessary.
2. Mask the PIR sensor’s lens to eliminate unwanted coverage area.
Red LED is lit all the time and the sensor features don’t work.
1. Check DIP switches 1,2,3. If they are all ON the unit is in Service Mode.
Set the DIP switches to a valid Time Delay setting.
2. If re-setting the Time Delay switches does not clear the LED call
technical support.

Warranty Information
WattStopper warranties its products to be free of defects in materials and
workmanship for a period of five years. There are no obligations or liabilities
on the part of WattStopper for consequential damages arising out of or in
connection with the use or performance of this product or other indirect
damages with respect to loss of property, revenue, or profit, or cost of removal,
installation or reinstallation.
2800 De La Cruz Boulevard, Santa Clara CA 95050
Technical Support: 800.879.8585 • www.wattstopper.com
10188r2 9/2010
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COVER PLATES
WattStopper PW series wall switches fit behind industry standard
decorator-style switch cover plates.
Units come in the following colors, which are indicated by the final suffix of the
catalog number (shown here in parentheses):
White (-W), Light Almond (-LA), Ivory (-I), Gray (-G), Black (-B).