LightSaver
®
LCE-211 Controller
Model#s:
LCE-211-120
LCE-211-277
Copyright©2002 The Watt Stopper, Inc. 8/1/02
DESCRIPTION
The LightSaver
®
LCE-211 controller provides control of exterior lighting.
The LCE controller automatically turns lights off when daylight
contributes enough light to the space, and turns lights on as artificial
lighting is needed — conserving lighting resources and energy costs.
An ON/OFF time delay provides a “cushion” of time that eliminates
on/off light cycling due to brief variations in daylight (i.e., clouds passing
or windshield reflections). The LCE-211 works with the LS-071C
photocell, which reads the ambient light levels.
OPERATION
Note: The controller has one normally closed (NC) contact and one
normally open (NO) contact. The operations described below
assume that the NC contact will be used.
Turning Lights On:
When the daylight level drops below the setpoint, the LED on the front
of the controller module will turn off. After a time delay of approximately
one minute elapses, the lights will turn on.
Turning Lights Off:
When the daylight level rises above 110% of the setpoint, the LED on
the front of the controller module will turn on. After approximately one
minute has elapsed, the lights will turn off.
Fail Safe Operation:
When power to the controller is restored following a power interruption,
the lights will turn on. The contacts will close for one minute before the
controller resumes normal control.
INSTALLATION
1. Mount the controller in an electrically rated panel. In dry locations,
use at least a NEMA 1 enclosure. For exterior locations, use either a
NEMA 3R or NEMA 4 enclosure.
2. The maximum wire distance to the LS-071C Photocell is 250 feet
using 18AWG cable. Use 2-conductor cable, Belden 8461 or
equivalent.
3. The LS-071C has a watertight enclosure, but it is recommended that
it be mounted in a protected location, such as under the eaves of a
roof.
7891011
4 5 6
1 2 3
NC
NO
123
Hot
N
LS-071C
Photocell
LightSaver
®
LCE-211
Tech Support:
800.879.8585
Setpoint
.2
.7
2
7
20
FC
.2–
20
120VAC for LCE-211-120
277VAC for LCE-211-277
Installation Instructions
35Y093_13_R7_000920
≠ CAUTION: TURN THE POWER OFF ≠
AT THE CIRCUIT BREAKER BEFORE WIRING.
WIRING
≠ CAUTION: INSTALLATION MUST BE PERFORMED ≠
BY A QUALIFIED ELECTRICIAN ONLY.
FOLLOW PROPER SAFETY PROCEDURES AND
BUILDING CODES THAT APPLY.
LCE CONTROLLER MODULE ADJUSTMENTS
The following adjustments must be made to the LCE controller to
ensure proper operation.
Setpoint dials:
The setpoint is the threshold value which, when the daylight level drops
below this point, triggers the control signal to turn lights on.
The setpoint should be selected based on the design requirements of the
application. Review construction plans or check with engineering
consultants to determine the proper setpoint. If neither of these sources is
available, use the following typical design conditions as guidelines:
• Building entrance 5 footcandles
• Open parking lot
– lighting for cars .5 - 2 footcandles
– lighting for pedestrians .8 - 4 footcandles
With a small screwdriver, turn the setpoint dials on the LCE Controller to the
determined value. When viewing the setpoint dial, refer to the .2 to 20
footcandle ranges.
LED:
The LED turns off when the light level falls below the setpoint, and
remains off until the daylight level rises above 110% of the setpoint.
Note
: Although the LED can turn on before the time delays are
satisfied, the lights will not turn on or off until the time delays
are satisfied.
B
A
TROUBLESHOOTING
The controller will not turn off lights:
1. Verify that the LCE module is powered up.
2. Verify that the photocell is connected properly.
The controller will not turn on lights:
1. Verify that the photocell wiring has not shorted.
2. Verify that the photocell is not exposed to any sources of artificial
light.
SPECIFICATIONS
LCE series Controller Module:
UL cUL Ratings
Supply Voltage:
LCE-211-120 120VAC ± 10%
LCE-211-277 277VAC ± 10%
Max. internal power consumption: 5.2 VA
Contact ratings:
LCE-211-120 420 VA fluorescent at 120VAC
420 Watts tungsten at 120VAC
LCE-211-277 420 VA fluorescent at 277VAC
420 Watts tungsten at 277VAC
OPERATING CHARACTERISTICS
LCE series Controller Module:
ON Delay approximately 1 minute
OFF Delay approximately 1 minute
ORDERING INFORMATION
Catalog # Description
LCE-211-120 Exterior lighting controller, fixed deadband,
120VAC
LCE-211-277 Exterior lighting controller, fixed deadband,
277VAC
LS-071C Photocell, .2-20 footcandle range
Setpoint
.2
.7
2
7
20
LightSaver
®
LCE-211
FC
Tech Support:
800.879.8585
.2–20
A
B
35Y093_13_R7_000920
Copyright©2002 The Watt Stopper, Inc.
Call 800.879.8585 or 972.578.1699 for Technical Support
WARRANTY INFORMATION
The Watt Stopper
®
, Inc. warranties its products to be free of defects
in materials and workmanship for a period of five (5) years. There
are no obligations or liabilities on the part of The Watt Stopper, Inc.
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.
Putting a Stop to Energy Waste
®
2800 De La Cruz Boulevard, Santa Clara, CA 95050
Technical Support: 800.879.8585 • 972.578.1699
www.wattstopper.com
/
