Intermatic K4251 Manual De Instrucciones

SWITCH: SPST NORMALLY CLOSED
SWITCH CAPACITY: 15 AMP TUNGSTEN 8.3 AMP BALLAST
OPERATING VOLTAGE (K4251): 120 VOLTS, 50/60 Hz.
OPERATING VOLTAGE (K4253): 208-277 VOLTS, 50/60 Hz.
WARNING
Risk of injury or death. Remove electrical power at service panel before installing.
DO NOT EXCEED AMBIENT TEMPERATURE RANGE -40˚ TO +140˚F (-40˚ TO +60˚C)
Installation by a licensed electrician is recommended.
APPLICATIONS:
All night Safety and Security Lighting for walkways, entrances, parking lots, farm yard light-
ing, recreational areas . . . Protective Lighting Control for homes, schools, commercial and
industrial buildings.
INSTALLATION:
Connection to junction box must be watertight. The photocontrol
can be mounted directly through a standard 1/2" knockout. Use
the included washer and nut. Alternatively, mount through a tapped
opening using suitable tape or sealant on nipple.
Mounting is recommended in the upright position with cell
facing North for optimum efficiency.
SOME HELPFUL HINTS FOR BETTER PHOTOCONTROL INSTALLATION: For best
results, the photocontrol must be installed so that the cell faces NORTH to sense only the
natural light that exists in the area.
Protect the window side of the photocontrol from any direct artificial light that may be on
after dark, from windows, signs, and the artificial light being controlled. Locate the photo-
control in as open a spot as possible. Particularly keep it out of corners and overhanging
eaves. Wire photocontrol as indicated in wiring diagram above.
TIME DELAY FEATURE (30 seconds minimum) prevents false switching due to temporary
cloud movements or momentary flashes of lightning or car headlights.
LIGHTS WILL BE ON WHEN PHOTOCONTROL IS FIRST INSTALLED. If installed dur-
ing daylight hours, control will turn off after a short delay. When testing, it will have a
delayed response.
PROBLEM
Occasionally, lamp will not turn on after dark
Lamp switches on & off after dark
Lamp switches on & off during the day,
but stays on all night.
Lamp switches off some mornings but not
others.
All Intermatic Photocontrols are given an operational check before they leave the factory.
If they should appear not to operate, check all of the above points over a two or three day
period.
®
PHOTOELECTRIC CONTROL
MODELS K4251, K4253
Electrical shock hazard.
TROUBLESHOOTING TIPS
Line
Black Line
Neutral
White Neutral
SOLUTION
Artificial light may be shining on the "eye". Shade
the eye from this light.
The "eye" may be exposed to the lamp it is
controlling. Shade the eye from this light.
Line and lamp leads may be reversed.
Switch them around.
The "eye" is probably shaded too much.
Reorient or remove from the day-light
obstruction.
WIRING DIAGRAM
(black)
(Red)
Red
(White)
nut and
nut and neoprene washer
neoprene
washer
1/2"nipple
1/2" nipple
Lamp
Lamp