The instructions are available from Intermatic if you click on the below link. 240 volts will have two 120 volt lines and a ground(green or bare) or neutral (white) wire. If your system is 240 volts the Red and Black wires are hot should be individually connected, one to terminal 1 and the second color to terminal 3. The load or pump in your case should be connected to terminal 2 and 4. If you want to wire a switch to the load you need to decide on how you want the switch act, 1) as an auxiliary on 2) as an emergency off. If you want an auxiliary on for the pump, you need a DPDT (Double Pole Double Throw) 40amp switch (what should be in the house). Run the appreciate gage of wire (AWG 8 for 40A) from terminal 1 to one pole of the switch and a wire from terminal 3 to the second pole of your switch. Next run wires from the switch contacts from the two remaining switch terminals to terminals 2 and 4 on the timer matching the Red side on the switch to and Red on the timer and Black side on the switch to Black on the timer. The timer will control the function of the pump, and the switch will turn the pump on when the timer is off. If you only have two hot wires coming from the house attach them to terminal 2 and 4. If you want an emergency stop you need to wire a second DPDT 40amp switch and disconnect the load wires from terminal 2 and 4 and connect each one to the opposite poles of the switch. Using the correct gage of wire you need to connect a red and black wire to the two separate terminals of the switch. When the switch is off the pump will not work but the timer will keep the current time. The color of wires may not be the same in that situation you will need a multi meter to identify the wires. I need a little more information on the pool sweep timer. Are you using the same timer or just the power? Is the power 120 or 240 volts? When do you want the pool sweep to be active?
This is a bit of a problem since you will need a logic switch so the pump timer will not turn on the pool sweep. I do not know if one is available since I do not have a pool. If it was my pool, I would design a solid state logic switch due to my electrical engineering background. However, it would be easier to explain to you how to connect a relay to the output of the pool sweep timer. Purchase a relay with 120 volt coil DPDT(Double Pole Double Throw) DPST(Double Pole Single Throw) with 40A contacts.
Connect the Red and Black wires in the same way as the pump, one to terminal 1 and the second color to terminal 3. The load or pool sweep in your case should be connected to terminal 2 and 4. Run the appropriate gage of wire (AWG 8 for 40A) from terminal 2 of the pool sweep timer to one pole of the relay. Connect a wire from terminal 4 of the pool sweep timer to the second pole of the relay. Run one lower gage wire (14AWG) from Terminal 2 or 4 of the pool sweep timer to one of the relay coil terminals. Connect the second relay coil terminal to ground or neutral. Connect the appropriate gage of wire (AWG 8 for 40A) from terminal 2 of the pump timer to the lower Normally Open contact of the relay. Connect the appropriate gage of wire (AWG 8 for 40A) from terminal 4 of the pump timer to the second lower Normally Open contact of the relay. When the pool sweep is turned on one of the 120 lines will close the relay and turn on the pump. The pool pump will not feed back to the pool sweep turning it on. If you want me to draw a diagram email me, and I will draw one up and send it to you.
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I have another timer same model number, power is 240 V . I want the "jumper" to switch the pool pump on when the sweep goes on.
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