Question about Intermatic & Indoor/Outdoor Rain Tight Timer

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I want to wire a photocell to overide my T101 timer for cloudy overcast days. Please provide a wiring diagram. Thank you

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You need to come off the line side of the clock to feed your photocell. And then from the load side of the photocell you can feed to the load side of the time clock. Leave the time clock wired the way it is now. What this will do is feed the light with the photocell or the time clock, but keep in mind by doing this the light will always remain on when it is dark. There is no other way to do it.

Posted on Sep 30, 2010

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Intermatic t101


99% chance the Timer wires are reversed ... and line from breaker and line to pump are reversed. Or remotely possibly the circuit is 240V, and somebody changed clock motor on old T101 from WG1570 to WG1573, converting old T101 into T102...
http://waterheatertimer.org/How-to-troubleshoot-Intermatic-timer.html
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T101
Add a comment with what you discover

May 14, 2013 | Hardware & Accessories

1 Answer

I need installation or wiring diagram for Timer Intermatic T101


Copy following link for 120Volt T101 timer wiring options:
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T101

Nov 29, 2011 | Home

1 Answer

I NEEDAND CAN'T FIND DIAGRAM FOR THE INTERMATIC T101P201 FIREMAN SWICH


1) T101P201 timer does not have a separate manual yet
http://www.poolandspacontrols.com/products/mechanical%20time%20switches/pool%20and%20spa%20time%20switches.aspx

2) However typical T101P201 timer is ordinary T101 timing mechanism inside Nema 3R beige-colored outdoor plastic enclosure, with additional fireman's switch.
Wiring for T101 shows on following link, and shows on door of timer enclosure:
Check that your timer terminals match illustrations because many timers can fit inside Intermatic enclosures.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T101

3) Fireman switch wiring:
T101P201 has a fireman's switch that wires directly to the pool heater thermostat.
http://waterheatertimer.org/pdf/Intermatic-Firemans-switch-156T4042A.pdf
If you are not using the timer for pool heater, or if heater does not have connection for fireman's switch, then do not connect fireman switch wires, and just tape them out of the way.

Add a comment for more information

Jun 16, 2011 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

The lights do not go off ?? Is it a bad photocell? They are on all day..and night..


Photocells go bad.
If photocell was working before and stopped working, then photocell is bad.
If photocell never worked, then check wiring.
I buy cheap 120Volt photocells at home center, and when they go bad, buy same brand again, and return bad one in new package if bad one still looks new.

Intermatic has 120V and 240V photocells.
Open following link for Intermatic resources and ez photocell wiring diagram
http://waterheatertimer.org/Intermatic-trippers-and-parts.html#photo

Apr 21, 2011 | Intermatic K4221C Photo Cell Control 120 V...

1 Answer

On my t101 timer the lights come on a said time by never turn off.the time on the clock is always wrong even when i reset the correct time.


Thank you for including model number of timer.

1) If T101 timer worked correctly before, and suddenly stopped working, then clock motor is suspect.
Order WG1570 clock motor and buy extra trippers also:
http://www.grainger.com/Grainger/timer-accessories/timers/electrical/ecatalog/N-8hi

2) If this is new installation, then wiring is suspect.
Line wires come from circuit breaker.
Load wires go to lights.
Open following link to see correct wiring:
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T101

3) Add a comment for more free help.
Also take advantage of fixya expert assistance live.
For a price, expert works with you live while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Feb 15, 2011 | Intermatic T101 - 24 Hr. Dial Time Switch...

1 Answer

New intermatic T101 timer problem - timer is not


Manual override lever is good overall test of T101 120Volt timer.
T101 timer has 3 terminals: A 1 2

See wiring diagram on following link:
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T101

Electricians test, they don't guess.
So test your wire:
Separate all wires for testing.
Use ordinary 2 prong tester.
Tape wood sticks to tester leads to keep hands away from power.
Stand on dry boards. Do not hold or touch anything metal.
Turn power ON.
Test each wire to bare ground wire.
Tester lights up on Hot wire. 120V circuit has only 1 Hot wire. If you have 2 Hot wires, you might have 240Volt circuit and need T104 timer. If circuit has 1 Hot wire, then that Hot wire must connect to terminal 1.
If you have NO Hot wire, then check circuit breaker.
Hot wire is identified.
Now test Hot wire to all other wires, except bare ground wire.
Tester lights up on Neutral wire. Neutral wire must connect to terminal A.
If you have NO Neutral wire, then additional wiring is needed, or circuit needs further testing to see what type of wiring you are working with.
Bare ground wires connect to green ground screw.

Notice there are small white wires also connected to terminals A and 1. These small white wires power the 120V clock motor. With Hot on terminal 1 and Neutral on terminal A, the clock motor will run, and yellow dial will rotate.

If timer dial does not rotate after connecting Hot ans Neutral, then test voltage across Hot and Neutral to make sure it reads 120V.

Your circuit should have 2 wires remaining.
These wires go to 120Volt load (fan, light, motor)
Connect these two wires to terminals A and 2.
Try manual override.
If Load turns ON-OFF, then timer is wired correctly.
If Load does NOT turn ON-OFF, then reverse Load wires on terminals A and 2.

Add a comment any time.

Dec 28, 2010 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

T101


Here's the wiring diagram:
http://www.intermatic.com/~/media/files/intermatic/products/instructions/timers/t101%20-%20english.ashx

The wiring is as follows:
Connect _both_ the incoming and outgoing neutrals (white) wires to the "A" terminal. The incoming [(LINE) (hot) (from the breaker or source)] black wire is connected to the #1 terminal and the outgoing (LOAD) black wire is connected to the #2 terminal.
Both of the bare or green wires are twisted together along with a 6 inch or so pigtail using a red or yellow wire nut. The pigtail is then connected to the green "GR" screw on the enclosure.

May 07, 2010 | Intermatic & Indoor/Outdoor Rain Tight...

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