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Evaporaive cooler wiring re-connect

-Do the green ground wires (1 for pump & 1 for motor) get connected to the bare copper wires?
-Can I connect the white "nuetral" wires (from both the pump & motor) to the same white exit wire?

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  • Mastercool Master
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I would think you want to connect the green wire to chassis. The idea being if any component shorts to the chassis the unit would grounded directly to earth.

Posted on Jul 20, 2009

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Posted on Jan 02, 2017

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Wiring for timer


T101P3 is ordinary 120Volt T101 mechanism inside a beige plastic box.
Rated 40 amp.
Three terminals A 1 2
Very small white wires that power the WG1570 clock motor are connected to terminals A and 1.

White neutral wire from breaker box connects to terminal A
Black Hot wire from breaker connects to terminal 1.
This will power the clock motor, which will switch the timer on-off.
Green ground wire and bare copper wires connect to green ground screw.

115volt motor should have 2 wires.
Connect white wire to terminal A
Connect black wire to terminal B
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T101

Aug 21, 2012 | Intermatic T101P3 Pool Timer IndoorOutdoor...

1 Answer

How to wire qo220 circuit breaker


A QO220 breaker will provide 20 amps of power at 240 volts when connected to #12 copper wires.

Smaller wires can not be connected as it will result in a code violation - and they are not rated for 20 amp loads. Depending on the device to be connected, it will have a total of either 3 or 4 wires. (2) hot black, red or blue wires and (1) ground green wire. Four wire devices provide (1) white neutral wire as well.

Three wire devices will provide a bare or green ground and 2 hot wires. The two hot wires should be black, red or blue - but in the case of building cables like Romex - may simply be a black, a white and bare or green. The black and white in a 3 wire cable used to provide 240V are both hot, and bare or green is ground. There is no neutral in this case. The white wire should be marked with red, black or blue tape, paint, etc. where ever it is visible so that people know it is hot - and not a neutral.

Bring the cable into the panel and locate the ground bar and the neutral bar. The ground bar has only bare and green wires connected to it and the nuetral bar will have only white or gray wires connected to it. Connect your green ground to the ground bar and any white or gray wire to the neutral bar. Most homes with the service disconnect switch inside this panel have only one bar that serves both ground and neutral wires. If your panel has ground and neutral wires mixed together, you can bring the white and green/ bare to any open terminal in the ground / neutral bar. Don't put more than one wire into 1 terminal.

Next, install the QO220 breaker.

The remaining 2 hot wires should be routed and connected to the QO220 - one wire to each of the terminals. It does not matter which terminal gets which wire as long as they are in two different terminals.

That's how it is done. Good luck!

Jul 13, 2012 | Square D Co. QO220 Circuit Breaker

1 Answer

I am trying to wire a new Emerson 230v pool pump to a timer. The pump has 2 red wires and 1 green wire coming from it. The timer has 3 wire terminals. The receptacle has 1 black wire, 1 white wire and 1...


You really need a 2-pole timer -- 2 wires in and 2 out. In that case the Black/White from the receptacle goes to the 2 "in" terminals and the 2 red wires from the pump go to the 2 "out" terminals. The WHITE wire from the receptacle goes nowhere - tape it off. The Bare wire from the receptacle goes to the GREEN (ground) wire on the pump.
A single-pole timer can be used, but in that case, you ALWAYS have 110 v on one side of the pump. Not safe, and not code compliant.

May 27, 2017 | Emerson THREADED SHAFT UP RATED - 1.00 HP...

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What you mean put line to ground can this be done? could u explain what are those wires for?


1) No you don't put 'line' to ground in any application.
But people use the word 'line' to describe a cable or a wire.
So your question is not clear, or maybe an answer you got from someone is not clear.

2) Let's go over wiring for T104 timer.
You posted under T104 Intermatic 240V timer.

3) Electricians use the words 'Line' and 'Ground' to mean specific things:
Line wires are wires that come from breaker box and go to timer.
Load wires are wires that leave timer and go to Load (light, fan, motor, pump)
Ground wire is extra safety line that is bare copper or green insulated wire.

4) How to wire T104 240Volt timer:
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

Line wires from circuit breaker connect to terminals 1 and 3.
Load wires going to Load (light, fan, motor, pump) connect to terminals 2 and 4
Bare ground wire connects to green ground screw.
Terminal A does not have any wire in typical 240V connection. So terminal A has no wire.

5) If your power is 120V, then T104 is not the right timer.
You might need T101 or T103 depending on what you are doing.
Add a comment if needed.

6) If you have a different timer than T104, add a comment with specific brand and number that shows inside timer door. I have wiring diagrams for most box-type timers.

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

Feb 01, 2011 | Intermatic T104 24h 208-277v Mechanical...

1 Answer

Wiring of the 2-5-10-15 timer to a jucuzee bath tub it has three wires black blue green. Thanks. Terry.


First thing to consider is size of Load.
Leviton countdown-timer Load rating is 1800 Watt, 120Volt.
Look inside Jacuzzi at rating plate on motor.
Rating plate on motor should give Volts, Watts and Amps.
Formula Volts x Amps = Watts.
Sometimes motor shows VA which is Watts
Is Jacuzzi on 240Volt breaker or 120V breaker?
Leviton countdown timer is not for 240V load.

A) If 120Volt electric Load checks out, here's how to wire timer if 1 cable enter box.
Timer-black-wire connects to jacuzzi-black
Timer-white-wire connects to ground.
Timer-green connects to ground.
Timer-red connects to jacuzzi-blue.

B) Here's how to wire timer if 2 cables enter box.
120Volt cable coming from breaker box has black, white and bare copper wire.
Timer-black-wire connects to black-wire-from-breaker
Timer-white-wire connects to white-wire-from-breaker-box.
Timer-green and jacuzzi-ground connect to ground

Timer-red-wire connects to jacuzzi-black-wire.

Jacuzzi-blue-wire connects to white.
I am puzzled why this wire is blue if circuit is 120Volt.

Nov 26, 2010 | Leviton Timer Switch 2-5-10-15 Minutes, 4...

1 Answer

I need a wiring diagram for hayward pool filter model K48m2n11b3


Are you trying to wire a pool pump?
I found manuals at the Haywood site > I saw nothing for K48m2n11b or anything close to that number
http://www.haywardnet.com/inground/products/manuals.cfm

But lets work on the problem and see if I can give you some help:

After opening a few manual and searching for the word 'volt' and 'pump' ... each manual talks about 'pumps' generically, as if the pump is a separate purchase item.

Lower down on the manual page they have a list of pool pumps. A search for the word 'volt' inside the pump manuals says 'match supply voltage to motor nameplate voltage.'

As you know, each electric device has a label showing voltage, wattage, etc. Your pump should show 120Volts or 240V. I didn't see any mention of 3 phase wiring, so I assume your Haywood pump runs on typical residential wiring? And that you are not using 440Volt or 3 phase.

The 120Volt pump will have a black, white and bare ground.
The 240Volt pump will probably have a black, white, red and bare ground
The 240Volt pump could have a black white and bare ground

First the 120V pump:
The 120Volt line from your breaker box will have a black Hot wire, white Neutral wire and bare ground >>> this wire connects color-to-color with pool pump

Next the 240V pump with black, white, red and bare ground
a) The 240Volt line from your breaker box can have the same 4 wires, in which case they connect color-to-color
b) The 240Volt line from your breaker box could have a black white and bare ground, in which case the black goes to black, the white goes to red, the bare coppers are connected, the white pump wire is capped off and not used. If pump does not operate with this wiring, another line from the breaker with wires that match pump might be necessary.

The 240V pump with black white and bare ground
a) The 240Volt line from breaker can have black, white, red and bare ground, in which case the black goes to black, the red goes to white, bare grounds are connected, the white wire is capped off
b) The 240Volt line from from breaker can have black white and bare ground, and this connects color-to-color to the pump

HOW do you know if line from breaker is 120V or 240V?
If you know which breaker wire is connected to, then it's easy
If you do not know which breaker
-turn off power
-separate wires so they can be tested
-use ordinary tester
-stand on dry boards
-tape tester leads to sticks so hands are away from power

-turn on power
-test each wire to bare copper
-tester lights up on Hot wire
-120V line will have 1 Hot wire
-240V line will have 2 Hot wires

Oct 18, 2010 | Garden

1 Answer

GE digital timer. Instructions say to: 1) connect Hot/live wire of main to black wire of timer, 2) connect neutral (White) wires together, 3) connect Hot/live wire of load to red from timer. 4) green to...


Find the Hot wire:
Your switch has 2 wires. One of these wires is Hot, and one goes to load. Disconnect wires from switch. Turn on power. Do not stand on wet surface. Test each wire to bare copper wire. When tester lights up, that is Hot wire. The other wire goes to load.

Connect wires:
Hot wire goes to Black timer wire
Wire to load goes to Red timer wire
White wire connects to white wires that are twisted together
Bare copper wire connects to Green wire from timer

How to connect white wire to white wires that are twisted together.
a) Strip white timer wire so you have 1-1/2 " of bare wire. Stranded wire will wrap around other wires easily.
b) Remove wire nut. DO NOT UNTWIST wires.
c) Hold all whites together so bare copper lines up. Wrap stranded copper around the twisted wire.
d) Replace wire nut, or use larger wire nut. Twist real tight. Do not use tape. You can solder the connection.
e) When done, pull on white time wire to make sure it is held tight. Push whites back into box.

Sep 25, 2010 | UPM Programmable Wall Switch Timer

1 Answer

How to wire 1/2 hp115 volt with two black wires and green


Green is always ground. This gets connected to your equipment grounding conductor which is either green or bare copper. The other two black wires would connect to your black and white wires. Make sure the pump is labeled fot 115V. You didn't list your exact model number. Since this motor is for submerged operation, it does not have the neutral conductor bonded to any part of the motor. It is not polarity sensative. You can view a manual here: http://www.waynepumps.com/images/pdf/manuals/340600-001_0806.pdf

Jul 14, 2010 | NRS Wayne Deep Well 4" Pump 2-wire 1/2 Hp...

1 Answer

Wire wayne 1.5 hp irrigation motor.


Your wires- Black=hot, White=common, bare copper wire=ground.
Motor wires- Black=hot, White=common.

Connections: Black to black, white to white, bare copper from line in to motor frame.

The wires from the motor should have been designed to carry the power load. Heavier wiring is always an option, to a point.
Regards, --W/D--

Jul 20, 2009 | AO Smith 1 1/2 HP 115/230V 56C Replacement...

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