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I have A new contractor it T1 and T2 on one end L1 And L2 other , my old one has no writing on it . How do I connect the new one?

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What is a contractor? Is he the person installing the air conditioner? Not sure what you are talking about...please give more details and a picture would be great!

Posted on Oct 18, 2013

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Posted on Jan 02, 2017

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SOURCE: i bought a new universal

The contactor should look alike. Just make sure the same wires are on the same side as the old contactor. Don't worry so much of the l1/t1 and l2/t2

Posted on Apr 05, 2011

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1 Answer

I need help figuring out funky thermostat wiring on my 240v baseboard heaters.


sounds like your heater already has 120 going to it at all times. it doesn't heat because it needs 240. therefore your tstat breaks the black, when it calls for heat it closes the black therefore giving your heat the remaining 120 and begins to heat. I would think it would work just with the blacks going to l1 t1 but if l2 t2 needs the jumper you are not doing any harm. who knows what goes on inside your walls but if it ain't broke don't fix it

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I need ang diagram for hobart mixer 9 out wire T1/T2/T3 AND T4/T5/T6, T7/T8/T9 which is the right partner of t1/t2/t3???


Having 9 wires means it is a 3 phase motor.
For 220 to 240 Volts - L1, T1 and T7 go together. L2, T2 and T8 go together. L3, T3 and T9 go together. T4, T5 and T6 go together.

For 440 to 480 Volts - L1 and T1 go together. L2 and T2 go together. L3 and T3 go together. T4 and T7 go together. T5 and T8 go together. T6 and T9 go together.

Apr 12, 2015 | Hobart Food Mixers

1 Answer

I bought a new universal ac contactor relay to replaced the o.e.m. the new has l1 l2 t1 t2 . the old relay don't say l1 l2 t1 t2 or any indicatio.


The contactor should look alike. Just make sure the same wires are on the same side as the old contactor. Don't worry so much of the l1/t1 and l2/t2

Apr 05, 2011 | Heating & Cooling

1 Answer

Code for a simple banking system.


//My name is rajeshwari and i have posted u a simple Bank program
import java.awt.*;
import java.awt.event.*;
public class MyBank implements ActionListener,ItemListener
{
Frame f1;
CheckboxGroup cg1;
Checkbox ch1,ch2,ch3,ch4,ch5,ch6;
Label l1,l2,l3,l4,l5;
TextField t1,t2,t3,t4;
Button b1,b2,b3;
Font ft;

MyBank()
{
f1 = new Frame("My Bank");
f1.setBounds(50,50,500,500);
f1.setLayout(null);

cg1 = new CheckboxGroup();
ch1 = new Checkbox("Short term[1yr]",cg1,false);
ch1.setBounds(50,50,120,30);
ch1.addItemListener(this);
ch2 = new Checkbox("Medium term[2yrs]",cg1,false);
ch2.setBounds(50,100,120,30);
ch2.addItemListener(this);
ch3 = new Checkbox("Long term[5yrs]",cg1,false);
ch3.setBounds(50,150,120,30);
ch3.addItemListener(this);
ch4 = new Checkbox("Very long term[10yrs]",cg1,false);
ch4.setBounds(50,200,120,30);
ch4.addItemListener(this);

l1 = new Label("Rate of Interest");
l1.setBounds(210,50,150,30);
t1 = new TextField();
t1.setBounds(360,50,100,30);
l2 = new Label("Deposit Amount");
l2.setBounds(210,125,150,30);
t2 = new TextField();
t2.setBounds(360,125,100,30);
l3 = new Label("Interest Amount");
l3.setBounds(210,200,150,30);
t3 = new TextField();
t3.setBounds(360,200,100,30);
l4 = new Label("Maturity Amount");
l4.setBounds(210,275,150,30);
t4 = new TextField();
t4.setBounds(360,275,100,30);

ch5 = new Checkbox("Senior Citizens");
ch5.setBounds(125,320,100,30);
ch5.addItemListener(this);
ch6 = new Checkbox("NRI");
ch6.setBounds(275,320,100,30);
ch6.addItemListener(this);

l5 = new Label("Extra : 0.5 Rate of Interest on Sr.Citizens and 1 Rate of Interest on NRI");
l5.setBounds(50,370,400,30);

b1 = new Button("Calc");
b1.setBounds(125,440,50,30);
b1.addActionListener(this);
b2 = new Button("Clear");
b2.setBounds(225,440,50,30);
b2.addActionListener(this);
b3 = new Button("Exit");
b3.setBounds(325,440,50,30);
b3.addActionListener(this);

f1.addWindowListener(new mywin());
ft=new Font("Arial",Font.ITALIC,20);
f1.add(ch1);
f1.add(ch2);
f1.add(ch3);
f1.add(ch4);
f1.add(l1);
f1.add(t1);
f1.add(l2);
f1.add(t2);
f1.add(l3);
f1.add(t3);
f1.add(l4);
f1.add(t4);
f1.add(ch5);
f1.add(ch6);
f1.add(l5);
f1.add(b1);
f1.add(b2);
f1.add(b3);
f1.setVisible(true);
}
public class mywin extends WindowAdapter
{
public void windowClosing(WindowEvent we)
{
System.exit(0);
}
}
public void itemStateChanged(ItemEvent ie)
{
double r;

try{
if(ch1.getState() == true)
{
t1.setText("3.5");
}
else if(ch2.getState() == true)
{
t1.setText("4");
}
else if(ch3.getState() == true)
{
t1.setText("4.5");
}
else if(ch4.getState() == true)
{
t1.setText("5");
}

if(ch5.getState() == true)
{
r = 0.5 + Double.parseDouble(t1.getText());
t1.setText(r+"");
}

if(ch6.getState() == true)
{
r = 1 + Double.parseDouble(t1.getText());
t1.setText(r+"");
}
}catch(Exception e){
System.out.println(e);
}
}

public void actionPerformed(ActionEvent ae)
{
double ri,damt,in,mamt;
if(ae.getSource() == b1)
{
ri = Double.parseDouble(t1.getText());
damt = Double.parseDouble(t2.getText());

in = (damt * ri) / 100;
mamt = damt + in;

t3.setText(in+"");
t4.setText(mamt+"");
}
else if(ae.getSource() == b2)
{
t1.setText("");
t2.setText("");
t3.setText("");
t4.setText("");
ch5.setState(false);
ch6.setState(false);
}
else if(ae.getSource() == b3)
{
System.exit(0);
}
}
public static void main(String args[])
{
MyBank obj = new MyBank();
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}

Nov 13, 2010 | Sun Java Programming Language (cdj-275)

1 Answer

Need wiring diagram for 3 phase electric motor


motor leads on a three phase are T1, T2, T3, T4, T5, T6, T7, T8, T9. for high voltage [480] L1 to T1, L2 to T2, L3 to T3, connect together and tape - T4-T7, T5-T8, T6-T9. For LOW voltage [240] L1 to T1 & T7 & tape, L2 to T2-T8 & tape, L3 to T3 & T9 & tape. T4-T5-T6 together and tape.

Oct 20, 2009 | Saws

1 Answer

How to install 25amp 3 pole relay


There should be 8 screws on the relay L1, L2, L3, T1, T2, T3 and two additional screws either at the top or bottom, or one on each side. The incomming, constant power in from the circuit breaker, should connect to L1, L2 & L3. The power out to the load should connect to T1, T2 & T3. The control wire from the switch or timer you will be using to close the contactor will connect to the remaining two screws. THE MOST IMPORTANT PART IS THAT THE CONTROL VOLTAGE MATCHES THE COIL VOLTAGE OF THE CONTACTOR. They will make 12vac, 12vdc, 24vac, 24vdc, 120v, 240v, 277v, etc. coils for the contactor.
Also keep in mind that when the contactor closes L1 & T1 make contact, L2 & T2, Etc.

Oct 08, 2009 | Eaton ARC FAULT CIRC BREAKER

1 Answer

Carrier A/C units


Double check that the new contactor has the same electrical ratings on it. My guess is that the coil should be 24v while the relay should be able to carry the same amperage at 220v.

First shut off the breaker and disconnect switch for the furnace and outdoor condenser and call a licensed HVAC contractor:)

If you are determined to do it yourself, Then read the schematics first. Be aware, if you mis wire the system you may cause more damage than you have now. Not to mention your personal safety is at risk.

I am basing this on the most common style contactor found in my area.

The main relay side should be labeled. (eg. L1,L2-T1, T2). These should match exactly like the old one. L1 and L2 are the incoming power. T1 and T2 are the power leaving the contactor. All the 220v wires should correspond to one of these four terminals either by screwing them down or fitting the spade connectors together.

Usually the 24v wires will plug onto the coil (near the bottom, left and/or right sides of the contactor) silver spade connectors.

(STEP 1.) Leave all Wires Connected to your Old Contactor.
(STEP 2.) Remove the two mounting screws that hold the Old Contactor to the Air Conditioners casing.
(STEP 3.) Now Install the New Contactor to the old contactors existing location using the Same two Screws.
(STEP 4.) Now take Off one wire at a time from your old Contactor and Install each wire one at a time to the proper location on the new Contactor.

Jun 24, 2008 | Carrier 38CKC042 Air Conditioner

1 Answer

Coleman evcon moblehome ac question


I would replace them to the exact terminals that they used to be on. Technically speaking L1 and L2 stand for Line one and Line two. This would be the incoming power from the breaker or disconnect switch. T1 and T2 are the power leaving the contactor relay.

Jun 17, 2008 | Heating & Cooling

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