Lutron Electronics GRX-LC8 Installation And Setup Instructions

GRX-LC8 ContRoLLeR
Installation and Setup Instructions
Description
the GrX-Lc8 controller works with a GrX-ces series daylight sensor to allow for changes to be made to a Lutron
lighting system through a contact closure. it is a single channel lighting controller that features an adjustable on
setpoint as well as an adjustable oFF setpoint. the controller features a signal deadband and time delay to ensure
lighting stability. the controller is powered by a pp series power pack.
instALLAtion
Mount the controller using the adhesive strips provided. choose a location where the pp series power pack can be
provided with power.
WirinG
sensor (typical)
red (24 V
Yellow (0-10 V
cALiBrAtion
each GrX-ces sensor is calibrated during manufacturing to the light levels in its intended environment (indoor,
outdoor, etc.). Below is a chart of the settings for each model. the first column corresponds to the settings on the
adjustment knobs in the GrX-Lc8 controller.
Adjustment
Knob Setting
Below 1
1
2
3
4
5
6
7
8
9
10
6 7 8
Off LED
Off Setting Knob
On Setting Knob
On LED
ON
SENSOR DELAY
OFF
1 2 3 4 5
red (24 V
)
Black
signal)
Black
(common)
Corresponding Foot-Candle Thresholds
GRX-CESI GRX-CESA
0 2
10 100
20 200
30 300
40 400
50 500
60 600
70 700
80 800
90 900
100 1000
R
n.o. contact
common
n.c. contact
notes
• When interfacing to a Lutron system, the
n.c. contact will turn lights on (contact
Lc8 controller
closure close) when daylight levels are
low, and turn lights off (contact closure
open) when daylight levels are high.
• When the off or on LeD is lit, the light
level is above the setting of its respective
knob.
)
power pack
pp-120H,
pp-277H, or
pp-UnVH*
Blue (cap off)
*check with Lutron for availability
GRX-CESS
10
200
400
600
800
1000
1200
1400
1600
1800
2000
Please Read
to Lutron lighting control system
peLV (class 2: UsA) only
no line voltage
Black (120 V
White (neutral)
red (cap off)
red (cap off)
GRX-CESO
0
25
50
75
100
125
150
175
200
225
250
)