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Need wiring diagram to install TL21 24 hour time switch (Intermatic)

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TL21 is aka WH21 timer rated 23 amps SPST.
Copy following links to identify timer, and replacement parts, and see wiring illustration:
http://waterheatertimer.org/How-to-troubleshoot-Intermatic-WH21-timer.html

http://waterheatertimer.org/Intermatic-timers-and-manuals.html#wh

Posted on Nov 01, 2012

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Posted on Jan 02, 2017

protek480
  • 1714 Answers

SOURCE: I have an Intermatic 24hr. 125V timer, I need the

It should be on the door. It's marked 'line' & 'load'. Line is un-switched coming in and 'load' is your output to your motor or whatever you're running.

Posted on Jun 26, 2009

mydogisk
  • 50 Answers

SOURCE: I need to instal a mechanical time switch

john, i'm assuming the water heater is 240 volts and the timer is 240 volts, if ok follow these instructions. the 2 wires coming from the breaker box goes on 1 & 3 screws, also each yellow wire going to the timer motor goes on 1 & 3. now the 2 wires going to the water heater goes on 2 & 4. be sure to ground the timer box

Posted on Apr 13, 2009

  • 8404 Answers

SOURCE: need a picture of an already wired T2005

You are placing a pretty tall order here. You want someone to go to a timer that is wired - take a picture of it, transfer it somehow to the computer then attach it here somehow and or draw a diagram ... and for what benefit???? There is a schematic on the door of the switch, at least the dozen or so that I maintain anyway.

There are three termnals in the switch, a common for a white, a hot black and a switched black.

The "line" is the hot black and a white. Your load (white can come to the line white if you want but it is not necessary) a black wire that goes to your light or motor or what ever you are turning on.

If this is a two pole switch (220 V AC) please indicate in your question/response.

If I have misunderstood your question, pleae ask again.

thank you

a

Posted on Oct 06, 2009

  • 760 Answers

SOURCE: I have a Tork 1103

I assume this is the wiring diagram you have for your timer. I don't know what you're trying to control with this timer, but it has a 110V timer motor so it must have a neutral conductor connected. The L terminal would be your incoming line conductor (hot, usually black) The X terminal would be your Load terminal (usually black too) The unmarked terminal would be your neutral conductor. The incoming and outgoing neutral conductor would be connected here (usually white) If you're using this for 220V load, the hot conductor would be connected to the terminal marked 1 and it's load connected to the 2 terminal. Or you could use it for two separate circuits4591020.jpg

Posted on Aug 13, 2010

Testimonial: "Thank you for your prompt advice. I am a novice electrician and your explanation helped to clarify the schematic."

SOURCE: i need a wiring diagram for an intermatic timer

Add a comment and say what voltage you are working with and what you are controlling with timer. Example wiring:
http://waterheatertimer.org/images/Intermatic-et70215cr-wiring-900.jpg

ET70215C timer is a 2-channel timer that can be wired MANY different ways, to control multiple voltages in different ways.
Each channel can be programmed separately to control 2 different loads with different schedules for each load.

Clock terminals are 1 and 2, and default clock voltage is 120Volts, but can be set for 208, 240 or 277Volts.

The switching terminals 3 4 5 6 7 8 are 'dry.' Max load rating is 20 amps per terminal
Dry terminals receive no power when voltage is applied to clock terminals 1 and 2.
This lets you to have 120Volt clock, but control 240Volt circuit with one of the channels, and 24volt with other channel.
Or you can jumper from the clock terminals and put power to terminals 3 and 6 as shown in illustration above.
The timer ALSO has NO and NC terminals that reverse the circuit each time the program turns the switch on-and-off. So when timer program is OFF then power travels from terminal 3 to terminal 5. When program is ON, power travels from terminal 3 to terminal 4.

Posted on Oct 01, 2011

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How to wire an intermatic et104c for 120v


Copy following link for ET104C 120volt wiring diagrams.
Don't forget ET104C arrives with default voltage set for 240Volt
http://waterheatertimer.org/How-to-wire-Intermatic-ET-series-timer.html

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Can you send a scematic showing how to wire an intermatic pool pump timer to a polaris intermatic timer so that when the pool pump shuts off so will the polaris pump yet the polaris timer clock continues...


No. I don't have a wiring schematic without knowing what voltage you are using, specifically what Intermatic timer you have, specifically what wires you have coming from breaker box, what wires are on the pump, and what pump rating plate says, what the wiring diagram shows on side of pump, whether you are wiring a 2-speed pump to a single-speed timer, specifically what is the polaris timer clock, and why this pump needs two timers if that's what you mean.
Add a comment with specific information so electrician is not guessing.
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Open following link for 240Volt T104 timer wiring diagram.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

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I need help to install pool pump to mechanical intermatic timer switch GE to replace the digital control.


Question is not clear.
Add a comment with missing information for exact wiring diagrams.
Voltage is not known.
Timer model numbers are not known.
You have two timers.
You are replacing unknown electronic timer with unknown mechanical timer.
Intermatic timers and GE timers are different companies, and each makes many different timers
Each box timer has identification on inside of timer door.
Open following links to help identify timer and see wiring diagrams.
http://waterheatertimer.org/Boxtype.html
http://waterheatertimer.org/GE-timers-and-manuals.html
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

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Need wiring diagram for T104M 208-277v Mech. Time Time Switch


Here is the basic instructions:
http://www.intermatic.com/~/media/files/intermatic/products/instructions/timers/t104%20-%20english.ashx

Below is a larger and better diagram of a 240V connection Terminal connections are White to White on 3 & 4 Black to Black on 1 & 2:
http://waterheatertimer.org/images/T-104-control-240V-Load4-35.jpg

More info: http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

I am assuming you have the 240 VAC clock motor so the clock timer motor wires are connected to terminals 1 and 3.

If you only have the 120 VAC clock motor the wires will be connected across terminals 1 and 2.
Thanks for choosing FixYa,
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1 Answer

Need operating instructions


T 101 Intermatic timer is 120Volt timer that will not work on 240Volt circuits

T-101 instruction manual
T-101 Wiring diagram:
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T101

To set timer:
Lift and rotate yellow dial until current time is lined up with silver pointer

To set ON OFF times:
Timer comes with 2 sets of ON and OFF trippers
Attach trippers on yellow dial at the time you want timer to turn ON and OFF
Minimum time period is 1 hour.
For 1 hour, attach ON OFF trippers next to each other.

To wire timer:
There are 3 terminals: A 1 2
Black Hot wire from circuit breaker connects to terminal 1
Black wire going to Load (lights fan motor) connects to terminal 2
White neural wires connect to Terminal A
Ground wires connect to green grounding screw

If the two black wires are on the wrong pole, the clock motor will not rotate, but the manual override will turn lights on and off

How to test for Hot wire:
Stand on dry boards
Wear dry clothes
Tape tester leads to wood sticks so hands are away from electricity
Separate all wires
Turn on power
Test each wire to bare ground wire
Tester lights up on Hot wire
120Volt circuit will have a single Hot wire
240Volt circuit will have two Hot wires

How to test for Neutral wire
240V circuit will not have Neutral wire
120V circuit has Neutral wire
Make sure circuit has only 1 Hot wire as described above
Test Hot wire to each white wire
Tester lights up on Neutral

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Ckt diagram


For anyone else who may reading this post, please note that this diagram is for the T104 ONLY.
Here ya go: http://www.intermatic.com/~/media/files/intermatic/products/instructions/timers/t104%20-%20english.ashx

Basically, connect the incoming (line) 240 volt wires to terminals 1 and 3 and the outgoing (load) wires to terminals 2 and 4. Of course, connect the (bare or green) equipment ground wires from both cables to the "GR" terminal.

Nov 17, 2009 | Intermatic T104 24h 208-277v Mechanical...

1 Answer

I need a wiring diagram for a Intermatic T104 40-amp timer


http://www.intermatic.com/images/instruction_sheets/T104.pdf

http://www.intermatic.com/Default.asp?action=cat&cid=91

if the 1st link doesn't work, use the 2nd and look for ur timer model there for the diagram.

if u need more help than this just ask

Tip: i usually use a photo cell in combination with the timer. i set the time for winter hours and let the photo cell take care of the rest.

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