Question about Intermatic Inc. ST01C Digital In-Wall Timer
Old timer: Intermatic EJ500 & ST01C timers have a battery. Battery operates the clock motor. Red wire is for 3-way circuit [a hallway with 2 switches is a 3-way circuit].
Utilitec timer, clock runs on 120Volt circuit instead of battery. So clock has to have power.
How to connect wires:
Black timer wire connects to hot wire from breaker box.
Red (or blue) timer wire goes to landscape lights.
White timer wire connects to white neutral wire [or if no neutral is available, connect to bare ground wire].
Green timer wire goes to bare ground wire.
How to find black hot wire and white neutral wire inside box: Disconnect and separate wires so you can test. Use ordinary tester. Power is on. There is only 1 black hot wire inside each electrical box. Test each black wire to bare ground until tester light comes on > that identifies the black hot wire. Next, test black hot wire to white wires until tester light comes on > that is the neutral wire. Exception: This test does not necessarily work with 3-way switches since they reverse each time switch is thrown.
Posted on Sep 21, 2010
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Posted on Jan 02, 2017
The wires on your new switch are intended for black = power .. white = neutral . and red = lights .. with two black wires on the old switch I am assuming that there is a bundle of white wires in that wall box, the white timer needs to join that bundle ... then you need to determine which black wire is the power from the electrical panel ( voltage tester) and connect to the black timer wire .. the red timer wire connects to the other black wire in the wall..
Please Vote !!
Posted on May 13, 2010
SOURCE: Bought a Utilitech #0192773 to
Utilitec 0192773 replaces single-pole switch and will not work for 3-way applications.
Open following link for clear wiring and programming steps for Utilitec 0192773
Utilitec can also be tricky to program if you are setting up astro dawn-dusk function.
For others finding this thread, same wiring applies to in-wall programmable timers by GE, Woods, Swilight, Sylvania, Tork, Hagar, UPM, Leviton, Grasslin, Wattstopper, Westek, and Intermatic analog timers. Intermatic battery-operated, Brinks and Aube timers are wired differently since they also work for 3-way applications.
Posted on Jun 05, 2011
SOURCE: Bought Utilitech 7 day Digital
Utilitec sells 2 different in-wall timers. Both wire the same.
Open following link for Utilitec wiring instructions.
Posted on Jun 18, 2011
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