Question about Intermatic & Indoor/Outdoor Rain Tight Timer

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Install a timer to control pool operation

I have an inground pool. On a concrete slab about ten feet to one side of the pool, I have a filter pump (230v), a heater (220v), a booster pump (230v) for a pressure-side vacuum and a pool light (110v). I have an outdoor breaker box next to the concrete slab with three switches, one for the filter pump/heater, one for the booster pump and one for the light.
That breaker box is fed from a main breaker inside my house. I want to install a timer or timers to do the following modes of operation:

Mode 1: Run the filter pump and heater only
Mode 2: Run the filter pump, heater and booster pump
Mode 3: Turn pool light at night either with or without filter pump running.

When the heater runs with the filter, I need the heater to turn off at least 30 minutes before the pump shuts off.
If the booster pump is to run, I need the booster to start after the filter pump has been running and stop before the filter pump shuts off.
I'm thinking a one timer for the light and either one or two timers for Modes 1 and 2.
Is there a one timer that could control pumps, heater and light?
Could I leave the breaker box in place and install a timer between the breaker box and pool components?
Thanks in advance.

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Another option would be to get an electronic timer like the Intermatic P1353 that has 3 circuits on it that you could program to cut on and off at different times. For example, you could have one circuit that controls the pump and turns the pump on, then the second circuit would turn on the booster pump at a set time after the filter pump had come on and then the heater could be set to also run at a preset time after the pump circuit was activated. Since the pump, booster and heater are all 220, it's a straight forward hookup with everything in one timer box.

The lights, as stated before, would be on a separate circuit (110) and have its own timer or photosensitive eye set in line.

Posted on May 11, 2010

Testimonial: "I read the P1353ME manual and it has the capability of exactly what I'd like to do. Thanks. "

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WOW .. thats a mouth full .. I am thinking that you would be better to use multiple timers.. The outside box and switches seem OK to leave and put the timers after the switches.
the light should be on a separate feed because it is 120 and the rest is 220volts. and that is a simple on/off regardless of the other devices. This could be a simple timer switch like is used for installing in a wall box .. or you could just install a photo eye for the lights to come on dusk to dawn..

I think 3 timers for the pump and the heater, and another for the booster pump .. having the heater cut out first is the tricky part .. thats why the 3 timers .. then you can pre set the delays that you want and eack will come on and go off as you plan.


Posted on May 05, 2010


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