Question about Solar Ivory Swylite Lst100+ Back-lit Digital Wall Timer
Swylite LST100 timer has 4 wires. Red, Blue, Black, White
Timer has more wires than wall switch because timer has electric clock inside. And with + series Swylite timer, it also has led bulb that needs power.
Timer can replace ordinary on-off switch
-On-off switch has 2 screws, so 2 wires (plus ground wire) connect to on-off switch
-Three of the four timer wires are used when replacing on-off switch
-Red wire is not used, it is capped off
Timer can replace 3-way switch
-Three way switch has 3 screws, so 3 wires (plus ground wire) connect to 3-way switch
-One of the screws on 3-way switch is colored dark (it is crucial to identify the wire that comes off dark screw so timer can be wired correctly)
Lets replace on-off switch see diagram
Timer black goes to Hot wire
Timer blue goes to Load (light, fan, motor)
Timer white goes to Neutral
Timer red is capped off.
How to check which wire is Hot, Neutral and Load
Switch you are replacing has 2 wires > one is Hot, the other goes to Load
Remove these two wires. Separate wires so you can test. Turn on power. Tape tester leads to wood sticks so hands are away from power. Test each wire to bare copper wire.
When tester lights up >> that is Hot wire >> please connect this wire to Timer black wire
The other wire goes to Load >> please connect this wire to Timer blue wire.
Now test for Neutral. Test Hot wire to other wires inside box. Neutral should be white. When tester lights up, that is Neutral. Please connect Timer white wire to neutral. IF YOU DO NOT have a neutral, you can connect Timer white to bare ground wire until you have time to drop a Neutral into the box.
Replace a 3-way switch see diagram
Three-way switch has 3 wires.
Identify which wire connects to Dark screw on switch >> and then please connect this wire to Timer Black wire.
Timer white wire connects to Neutral
Timer blue and red wires connect to other two wires that came off switch ... they connect to either one.
Posted on Oct 02, 2010
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Posted on Jan 02, 2017
pdf file link, instructions will say it is for a topica500 also known as a logica 500.
Hope this helps.RoyG
Posted on Mar 09, 2009
Great! I just bought one and am typing the directions from a blown-up scan so I can read them. This us the 3rd timer that doean't seem to want to be programmed and I am forced to operate manually!
Posted on Mar 14, 2010
HI .. if the switch has only a black and white wire attached, and there are no other wires in the wall box, then you cannot use this timer switch. You need to return it and get a timer that does not use a neutral connection. The wires you have are a switch leg from the light and there is a white wire but it is not a neutral.
If there are other wires in that wall box , tell me and we can chat more about how to remedy this .
Please Vote !!
Posted on May 25, 2010
A comment to samsocal's explanation:
Samsocal's explanation fixed my problem, which was the whole flashing light thing. I started with a light switch that had one black wire in and one out, and a whole mess of white wires connected together in the box that didn't connect to the switch.
In terms that would probably make an electrician pull his hair out, think of the black and red lines forming part of a loop that includes your fixture. Think of the black line as entering it, and the red line as exiting the timer. The red line of the timer goes on to connect to the black line of your fixture.
black power wire -> black timer wire -> into the timer
out of the timer -> red timer wire -> black _FIXTURE_ wire
The white line of your power cord splits into two separate paths. One connects to the white wire of the timer. The second goes off to the white line of your light.
|--> white timer wire
white power wire --|
|--> white FIXTURE wire
<<!!>> If any of your black, white and red wires are connected directly to each other, you've done something wrong. <<!!>>
At its simplest, the FIXTURE loop looks like this:
Fuse box -> black power wire -> (wire nut 1) -> black timer wire -> timer -> red timer wire -> (wire nut 2) -> black FIXTURE wire -> fixture -> white fixture wire -> (wire nut 3)^1 -> white power wire -> fuse box
Your fixture is the box on the wiring diagram that says "Lights/Fans/etc.".
^1 The white timer wire is not a part of the FIXTURE loop. It ties in at wire nut 3 and allows the timer to get power.^2
^2 This doesn't necessarily help you wire things up, but for completeness, technically your timer is in its own loop. It runs:
Fuse box -> black power wire -> (wire nut 1) -> black timer wire -> timer -> white timer wire -> (wire nut 3) -> white power wire -> fuse box.
<<!!>> Although I offer ** NO OPINION ON THE SAFETY ** of what I did, I do not have a ground as my house is too old so I did not connect it to anything, and the timer works just fine. (I cut the ground wire cleanly, stuck a wire nut on the end and then used electrical tape to make sure that it wouldn't come off). <<!!>>
Posted on Jul 12, 2010
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