Question about Ingersoll Rand - Rand Type - 30 Reciprocating Air Compressor - 5 Hp, 230 Volt 1 Phase, Model - 2340L5
230 VOLT 2pole HP 3PH
Posted by Anonymous on
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Posted on Jan 02, 2017
Your question is a bit unclear, but I assume you are asking how to wire the pressure switch in a piston compressor.
See the diagram, below.
You should have a wire from the L1 (first incoming main voltage) terminal to the pressure switch, and from the other pressure switch terminal back to the starter coil. You will also have a wire from L2 (second main voltage terminal) to the overload, and from the other overload terminal to the other side of the coil. In this arrangement, the motor starter coil must be rated at the SAME VOLTAGE as your incoming power.
This diagram works the same for single phase machines (they just don't have the third wire coming from the supply through the starter and overload to the motor.
If your machine has other safety controls (like a low oil switch), It can be wired in series with either the pressure switch or the overload.
Posted on Nov 06, 2009
Here is the starter
here is the pressure switch
Run the 120v for the coil on the starter through the pressure switch and your good to go!!!
Posted on Jan 20, 2011
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