3
INITIAL POWER-UP DELAY
There is an initial warm-up and calibration period the first time power is applied to the unit, after a power failure lasting more than 5
minutes and after the load is replaced. However, the lights can be turned
ON/OFF
manually by pressing the
ON/OFF
button at any time
when power is supplied to the unit.
SENSOR ADJUSTMENT
To adjust the CU-250, you use controls located under the
ON/OFF
button. The wall switch cover plate must be removed to gain access
to the adjustment dials under the
ON/OFF
button.
NOTE:
For multi-way operation, the Time Delay adjustments should be the same in all sensors related to
the same load.
1. Firmly grasp the side edges of the Lock Bar and gently pull it away from the switch face until it clicks.
Do NOT attempt to pull the Lock Bar off of the switch!
2. Firmly grasp the side edges of the
ON/OFF
button. Slide the button downward approximately 1/2
inch to expose the adjustment dials.
Adjusting the Time Delay
Turn the right dial counter-clockwise to reduce the amount of time the lights will remain
ON
after the last
motion detection (minimum = 15 seconds). Turn the dial clockwise to increase this time delay
(maximum = 30 minutes).
You can select the following values:
15 seconds • 5 minutes • 15 minutes • 30 minutes.
NOTE:
Do not overturn the Time Delay adjustment dial!
Adjusting the Ultrasonic Sensitivity Level
This feature is factory set at around 70% of maximum. Turn the left dial counter-clockwise to reduce ultrasonic detection sensitivity. Turn
the same dial clockwise to increase the ultrasonic detection sensitivity.
NOTE:
Do not overturn the ultrasonic sensitivity adjustment dial!
c.
Multi-way wiring using one CU-250 and up to four RH-253s:
One CU-250 can be connected with up to 4 RH-253 single
pole momentary wall switches for multi-way
Manual-ON/OFF
control of one single load.
The CU-250 must be installed in
the wiring wall box that connects to the load.
• Connect the existing wires to the wire leads on the CU-250
sensor as indicated below (See Fig. 3c). Cap them securely
using wire nuts provided.
• Connect the green or non-insulated (copper) GROUND wire
from the circuit to the green wire on each CU-250.
• Connect the NEUTRAL wire from the circuit and from the
lamp (LOAD) to the white wire on the CU-250.
• Connect the power wire from the circuit box (HOT) to the
black wire on the CU-250 (TRAVELER 1) and to one terminal
on each RH-253 single pole momentary switch.
• Connect the lamp power (LOAD) to the red wire on the CU-250.
• Connect the yellow wire on the CU-250 (TRAVELER 2) to the
other side of each RH-253 single pole momentary wall switches.
4.
Put the CU-250s (and RH-253s if applicable) into their respective
wall boxes.
Position them with the lens positioned above the
ON/OFF
button (lens
at top,
ON/OFF
button at bottom). Secure to the wall box with the
screws provided.
5.
Make any necessary adjustments.
See the SENSOR ADJUSTMENT section for information.
6.
Install cover plate.
Install industry standard decorator wall switch cover plate
(not included).
7.
Restore power to the circuit.
Turn on the breaker or replace the fuse.
IMPORTANT:
Wire the auxiliary unit to the same branch circuit as the
master unit and the load. If the load cannot be controlled
from the auxiliary unit check wiring to be sure both the units
and the load are on the same branch circuit.
AUXILIARY CU-250
MASTER CU-250
TOP
INDOOR USE ONLY
Red
Ground
Yellow
Black
White
Red
Ground
Yellow
Black
White
Load
Traveler 1
Traveler 2
Neutral
Hot/Line
Neutral
TOP
INDOOR USE ONLY
Fig. 3b: Reference wiring diagram, 3-way using two CU-250s
TOP
INDOOR USE ONLY
Red
Ground
Yellow
Black
White
Load
Traveler 2
Hot/Line
Neutral
Traveler 1 (Hot)
RH-253
Ground
RH-253
Ground
Ground
Traveler 2
Traveler 1
Traveler 2
Traveler 1
Traveler 2
Traveler 1
CU-250
Fig. 3c: Multi-way wiring using one CU-250 and three RH-253s
Fig. 5: Sensor Adjustment Controls
TOP
INDOOR USE ON LY
Adjustment
Dials
Lock Bar
Slide Down
ON/OFF
Button
Time Delay
30
Min.
Sec.
15
Min.
15
5
Min.
ma
x
mi
n
Sensitivity
09575r1
Min.
Se
c
15
Min.
Sec.
