Intermatic Time Clock in Plastic Enclosure with Heater Protection 220V - T104P201



Part # T104P201

By Intermatic

  4.5 Average  



Part # T104P201

Alternate Part #'s _T104P201, INT-30-713, INTT104P201

Product Description

These heavy-duty Mechanical Time Switches are designed for commercial, industrial and residential applications and have the highest motor load ratings in the industry. They provide up to 12 ON/OFF operations each day with a minimum ON/OFF time of 1 hour.

This model is designed to turn OFF a gas fired swimming pool heater approximately 20 minutes before the filter pump shuts down. This eliminates the problem of pounding and knocking due to overheated water, reduces scale and lime deposits and extends the service life of the heater


• Booster Pumps
• Lighting
• Hydro Chlorinators
• Fans
• Air Conditioning
• Music and Signal Systems
• Heat Pumps
• Swimming Pool and/or Spa Filter Pumps with Gas Fired Heaters



Product Specifications

220 V

?     Asked on 7/15/2020by Inyo Visitor

Can I purchase this timer without the enclosure? Thanks

A  Answered on 11/17/2020 by InyoPools Product Specialist Hector F.

Hello, the timer mechanism for this Intermatic timer model T104P201 is part number T104M201

?     Asked on 7/20/2018by Kevin

how do you test the function of the fireman's switch? I have an intermatic T104P201 with the firemans switch connected to a Jandy JXI pro series heater. I want to confirm that it is in fact shutting down the heater 20 mins before the pool filter. Thanks

A  Answered on 7/20/2018 by InyoPools Product Specialist Lennox H.

Hi, Kevin. Your heater will not operate if the switch isn't working. You can test the switch to see if it is open (good) closed (bad) while the unit suppose to be running. 

?     Asked on 7/9/2018by Eric

I have a pool pump and booster pump, both with timers. Can I use this to ensure that the booster pump doesn't run without the main pump being on? So, basically instead of wiring it to the heater, I could send the signal to the booster pump instead?

A  Answered on 7/9/2018 by InyoPools Product Specialist Lennox H.

Hi, Eric. Unfortunately, that is not how this timer will work. The Heater relay will not be able to control a pump. The T10404R will meet your needs. 

?     Asked on 10/26/2016by Jean

Hello, I have an Intermatic T104P201 timer for my pool, it's 16 years old, doesn't seem to be advancing and turning pool on/off. Is the T104M the correct replacement mechanism? The box is in good condition. I don't have a heater on the pool, so not sure why I haven this timer, but it's always worked well until now. Many thanks, JL

A  Answered on 10/26/2016 by InyoPools Product Specialist Lennox H.

Hi, Jean. Yes, the T104M is the correct mechanism for the T104P201 unit.

?     Asked on 9/23/2016by Todd

My pump and heater both run off of 120V circuits. Will this timer work for me?

A  Answered on 9/30/2016 by InyoPools Product Specialist Lennox H.

Hi, Todd. You will  need the T101P201 model for 120 volt operation.

?     Asked on 9/11/2016by LInda

The time dial keeps sticking, causing the pump not to turn on. Time for a new timer or is there a fix?

A  Answered on 9/11/2016 by InyoPools Product Specialist Stacey M.

Hello Linda, depending on what model you have and hooked up for 220v please check inside unit to check model.

?     Asked on 8/21/2016by Robert

Is there a timer for coordinated control of a pump and an electric in-line heater?

A  Answered on 9/1/2016 by InyoPools Product Specialist Lennox H.

Hi Robert, There is not a timer that can control a heater and pump. Heaters are not put on timers because they are activated by the water flow.

?     Asked on 7/15/2016by bob

can I just buy a new cover for model T104P201 the part no#2T2503A

A  Answered on 7/15/2016 by InyoPools Product Specialist Alan M.

Yes you can buy just the enclosure. There is the Intermatic Plastic Time Clock Enclosure Only or the PF1000 Series Intermatic Metal Time Clock Enclosure Only.

?     Asked on 5/4/2009by Guest

What is heater protection?

A  Answered on 5/4/2009 by InyoPools Product Specialist Patrick P.

The heater protection / fireman's switch shuts the heater off 10 minutes before the pump shuts off to protect your pool equipment.


Review Summary

 (Average 4.5  out of 5 stars)
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