®
WSD 2P FAN
WALL SWITCH SENSOR w/ MINIMUM FAN RUN-TIME
LINE VOLTAGE • 2-POLE • PASSIVE INFRARED (PIR)
SPECIFICATIONS
FEATURES
PIR Occupancy Detection
Two Self Contained Relays No Power Packs needed
Minimum Run-Time Setting for Fan (Aggregate over 24 hr Period)
Interchangeable Hot & Load Wires -
Impossible to Wire Backwards
Small Motion Detection to 20 ft (6.10 m)
Self Grounding Mounting Strap
No Neutral Required / No Minimum Load
Adjustable Time Delay / Pole
LampMaximizer ® Minimum On Time (disabled by default)
Push-Button Programmable w/o
Removing the Switch Plate
Labeled Buttons (Light / Fan)
Green LED Indicator
PHYSICAL SPECS
SIZE (not including mounting strap)
2.74”H x 1.68”W x 1.63”D
(6.96cm x 4.27cm x 4.14cm)
WEIGHT 5 oz
MOUNTING Single Gang Switch Box
MOUNTING HEIGHT 30-48 in
(76.2-121.9 cm)
COLORS White, Ivory, Gray, Lt. Almond
OPTIONS
347 VAC (347)
• Allows sensor to be powered from
and switch 347 VAC
• Wall plate provided (Ivory & White only)
COLOR
• White, Ivory, Gray, Lt. Almond
• Wall plate provided
• Must be specified
LOW TEMP/HIGH HUMIDITY (LT)
Utilizing two isolated power relays,
• Sensor is corrosion resistant
• Operates down to -40º F/C)
the WSD 2P FAN is factory set to
automatically turn both the lighting and
fan load on when initial occupancy is
detected. The settings of the WSD 2P FAN sensor can be programmed, without
removing the switch plate, by entering simple command sequences via the pushbuttons.
SENSOR OPERATION
The sensor detects changes in the infrared energy given off by occupants as they
move within the field-of-view. When occupancy is detected, the relays switch the
connected loads on. The sensor is line powered (no neutral required) and switches
line voltage (see specifications).
Two internal timers keep the lights/fan on during brief periods of inactivity and turn
the lights/fan off when they expire. The default time delay for the lights is 10 minutes
while the default for the fan is 20 minutes. These timers are each programmable
from 30 seconds to 20 minutes, and are reset every time occupancy is re-detected.
This state-of-the-art design requires no field calibration or sensitivity adjustments.
ELECTRICAL SPECS
MAXIMUM LOAD / POLE
(single phase power only)
800 W @ 120 VAC
1200 W @ 277 VAC
1500 W @ 347 VAC
MINIMUM LOAD None
MOTOR LOAD 1/4 HP
FREQUENCY 50/60 Hz
(timers are 1.2x for 50 Hz)
MINIMUM FAN RUN-TIME OPERATION
A user programmable setting indicates the required minimum fan run-time per 24
hour period. The sensor internally divides this time by four, creating a minimum fan
run-time per 6 hour period. Then, while the sensor operates the fan throughout each
6 hour period, it maintains an aggregate total of run-time. As each 6 hour period
draws to completion, when necessary, the sensor will turn on and run the fan for as
long as needed to meet the minimum requirement.
ENVIRONMENTAL SPECS
OPERATING TEMP
14º to 160º F (-10º to 71º C)
STORAGE TEMP
-14º to 160º F (-26º to 71º C)
RELATIVE HUMIDITY
20 to 90% non-condensing
SILICONE FREE
ROHS COMPLIANT
For example, the default minimum fan run-time setting is 6 hours, thus the sensor
will ensure the fan will run a minimum of 1.5 hour during every 6 hour period. If after
5 hours, the fan has only run for 30 minutes, it will turn on and run for the entire last
60 minutes of the 6 hour cycle.
OTHER
ASHRAE 62.2 Compliant
UL/CUL/CSA Listed
Title 24 Compliant
5 Year Warranty
Assembled in the U.S.A.
ORDERING INFO
The WSD 2P FAN is a Wall Switch
Decorator style Passive Infrared (PIR)
occupancy sensor that controls a
lighting load and an exhaust fan. While
similar in functionality to standard dual
relay sensors, the WSD 2P FAN sensor
provides a minimum fan run-time setting
so that air circulation requirements (such
as ASHRAE 62.2) can be met without
sacrificing energy savings.
WSD 2P FAN [VOLTAGE] [COLOR] [TEMP/HUMIDITY]
VOLTAGE
Blank = 120/277 VAC 347 = 347 VAC
COLOR
WH = White
IV = Ivory GY = Gray
AL = Lt. Almond
TEMP/HUMIDITY
Blank = Standard
LT = Low Temp
Revised 09.06.11 © 2011 Sensor Switch
COVERAGE PATTERN
WALL SWITCH DECORATOR LENS
• Small motion (e.g. hand movements) detection up to 20 ft (6.10 m)
• Large motion (e.g. walking) detection up to 50 ft (15.24 m)
• Wall-to-Wall coverage
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TOP VIEW
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TOP VIEW
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CONTROL MODES
ON MODES (programmable per pole, i.e. Pole 1 = Lights, Pole 2 = Fan)
AUTOMATIC ON (default Pole 1 & 2) - Lights/fan come on when occupancy is detected.
MANUAL ON - Requires the occupant to manually turn on the lights/fan via the push-button.
REDUCED TURN ON - Sensor is initially set to only detect large motions, effectively ignoring any reflected PIR signals
while still sensing occupants when they enter the room. Once on, the sensor returns to maximum sensitivity.
SWITCH MODES (programmable per pole)
PREDICTIVE OFF MODE (default Pole 1 & Pole 2) - This mode allows occupants to turn the lights/fan off via the switch
without losing the convenience of having the lights/fan automatically turn on when they re-enter the room. Pressing the
switch turns the lights/fan off and temporarily disables the occupancy detection in the sensor. After a short exit time delay,
the occupancy detection reactivates and monitors for an additional grace period. If no occupancy is detected, the zone will
remain in Automatic On operation. If occupancy is detected, the zone will go to a Permanent Off mode, requiring the switch
to be pressed again in order to turn the lights/fan on and restore the sensor to Automatic On operation.
PERMANENT OFF - Pressing the switch turns the lights/fan and the sensor off. Lights/fan will not come on until switch is
pressed again.
SWITCH DISABLE - Prevents user from manually turning off the lights/fan via the push-button. Button can still be utilized
for programming.
WIRING (DO NOT WIRE HOT)
STANDARD WIRING
BLACK* - Line Input (Hot) 1
*BLACK wires can be reversed
BLACK* - Lighting Load Output
BLUE** - Line Input (Hot) 2
**BLUE wires can be reversed
BLUE** - Fan Output
GREEN SCREW - Ground (required connection)
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BLK
LIGHTS
BLK
FAN
GRN
347 VAC OPTION (347)
Black wires are replaced w/ Red wires
WARNING
Note: Connection to Ground required for sensor to funciton. Unit powers off BLK Hot (Line) Input
Fire Hazard Caution: Maximum Lamps 1500 Watts, Type 347 VAC.
Attention: Risque d’incendie : Pauissance Maximales Des Lampes 1500 Watts, Type 347 VAC.
Warning: The units are intended to be installed by a qualified person with properly rated branch circuit protectors as per applicable local and national regulations (CEC, NEC).
WARRANTY: Sensor Switch, Inc. warrants these products to be free of defects in manufacture and workmanship for a
period of 60 months. Sensor Switch, Inc., upon prompt notice of such defect, will, at its option, provide a Returned Material
Authorization number and repair or replace returned product.
LIMITATIONS AND EXCLUSIONS: This Warranty is in full lieu of all other representation and expressed and implied
warranties (including the implied warranties of merchantability and fitness for use) and under no circumstances shall
Sensor Switch, Inc. be liable for any incidental or consequential property damages or losses.
TS-WSD-014A
900 Northrop Road, Wallingford, CT 06492 • 1.800.PASSIVE • FX 203.269.9621 • www.sensorswitch.com
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