With the cost of electricity continuing to increase, it is a good idea to replace a single-speed motor with a more energy-efficient 2-speed motor. This guide will explain how to install a 2-speed motor as well as add an Intermatic T-106 timer to control the high and low speeds. Although this guide is specific to replacing a Sta-Rite Dura-Glas motor, most of the steps can be applied to other models of pumps.
Sparky Posted: 2/9/2019
Where would my salt chlorinator tie in at? It’s suppose to run same time as pump but I’m not sure at low or high speed.Reply
InyoPools Product Specialist Robert M. Posted: 2/12/2019
Hello Sparky - You would connect the salt system to the T104 timer or whatever timer turns the pump on & off. It should be connected to the "load" terminals. The salt system may be able to operate at both speeds. It will turn itself off if the flow is too low on the low speed.Reply
InyoPools Posted: 7/27/2018
Yes, low speed is the money saving speed. High speed should only be needed for specific reasons. This would include backwashing the filter, vacuuming the pool, running spa jets and other water features.Reply
Anonymous Posted: 7/23/2018
Step 58 recommends low speed for majority if not all day,is this $ saving speed ?Reply
InyoPools Product Specialist Dennis R. Posted: 8/14/2017
Sj70764 - This guide shows you how to add a T106 timer to an existing T104 timer to convert your single speed pump system to a two-speed pump system. There is another, more expensive, way to replace your T104 timer with a timer that handles a 2-speed pump. See our guide on "How To Set Up the Intermatic Pool-Spa Control System for 2-Speed Pump".Reply
Sj70764 Posted: 8/11/2017
Why do you have to have two timers. My 2 speed pump only has one timerReply
InyoPools Product Specialist Dennis R. Posted: 3/10/2017
Jay Finke - Thank you for your response. We had our motor rep look at your comment. Here was his response:"There isn’t any standard for color, and we don’t put anything in print about the wire colors for field wiring. It is common in practice to use black for high, and red for low. For most codes, if a white wire is part of a 230 volt circuit, a piece of black tape should be put around the wire which would possibly give a clue that it is hot. Of course, a service person would not know if a person who hooked it up actually followed the recommended procedure. The real answer is a “qualified” service person would confirm all the circuits before applying power. Applying power to both high and low speeds at the same time may damage the windings before the overload has time to react."
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Jay Finke Posted: 3/9/2017
please, (everybody) use red wire as low, black as high and white as common. it makes it easier on the Pool Pump Motor Repair Guy when it calls for service.And hooking power up to high and low at the same time will SMOKE the motor in a matter of seconds, the motor will be damaged beyond repair.
Two-speed motors save power and usually outlast single speed motors, run on HIGH for 2 hrs and LOW the remainder around 8 hours total.
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mppools Posted: 4/6/2016
Just use a pe103 timer and be done with it. Its a lot safer.Reply
InyoPools Product Specialist Dennis R. Posted: 11/30/2015
Simon Reilly - No. The timers are only gating power to the pump motor. The T104 timer turns the power on and off. The T106 timer, in series, switches the power to low speed or high speed when the power is on.Reply
Simon Reilly Posted: 11/29/2015
Will the motor be destroyed if both timers are on at the same time?Reply
InyoPools Product Specialist Dennis R. Posted: 9/11/2015
T106 Timer - The way the timers are wired, timer (106) cannot be activated until the 104 timer is turned on. Timer 104’s only function is to provide power to 106. Timer 106 provides the switching function between Low and High speeds. When 104 is switched on, power flows through 104 to 106. If 106 is in the off position, power will flow through the Low speed circuit of the 106 timer to the pump. When the 106 timer is switched on, it will switch from the Low speed circuit to the High speed circuit within the 106 timer. When the 106 timer switches off, the 106 timer reverts back to the Low speed circuit. When the 104 timer is shut off, power to 106 is shut off which shuts off power to the pump.Reply
Anonymous Posted: 9/9/2015
What would happen when the High (106) is on but the Low (104) is off?Reply
Anonymous Posted: 7/21/2015
Thanks for documenting, and your willingness to share.. This helped me very much... Your awesome.Reply
Anonymous Posted: 3/24/2015
Thanks for clarifying. I appreciate the detailed steps for changing out my pump motor.Reply
InyoPools Product Specialist Dennis R. Posted: 3/23/2015
T106 wiring - Thank you for bringing this to our attention. You are correct. The last sentence in Step 53 should read "Connect the red wire (low speed) to terminal 2" to coincide in the picture?Reply
Anonymous Posted: 3/22/2015
Step 53 is written to connect red wire to terminal 4 yet the drawing shows it connecting to terminal 2 and drawings elsewhere also show the red wire from the pump motor connecting to the number 2 terminal in the T106 timer. Shall I follow the drawing or the text?Reply