Installed new motor which can be wired for either direction. there is no indicator arrow on unit anywhere to indicate correct rotation. Viewing from pulley side , clockwise or counterclockwise rotation ? Ingersol rand model 2475-7.5 hp.
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Re: correct rotation of copressor
Checked all the IR compressors in stock and all turn counter-clockwise facing pulley, however you could check the pump for fan angle on pulley. The fan on the compressor pulley blows air towards the pump. Generally, pumps turn CC because that would allow for the use of gasoline engines which all turn CC. Please email you questions, and Good Luck.
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Controller sensing wrong rotation of compressor. The 220 volt 1 Phase motor rotation can be changed. If this is a new compressor check to make sure all vacuum lines are tight and not cracked. The rotation error is caused by the lack of vacuum to the avpt transducer. The transducer may also be bad or not connected properly. check the connections to the transducer. Wiring and plastic vacuum line. If this is a unit that has had the motor replaced visually verify rotation of the motor. Rotation arrows should be on the unit. I believe rotation should be clock wise. If it is indeed motor rotation incorrect the motor tag should show the correct internal motor connections to make the motor rotation change> If not comfortable take it to a trusted motor shop.
Don't bet on it, I once saw a compressor that had 5 belts and hooked to a 400 HP motor and set to run the way the arrow indicated. When they fired it up it sucked the exhaust flat! It should when standing in front of it turn CW as does the motor. I would put a pressure gauge on the output of the compressor and just bump my motor until I got positive pressure on the output of the compressor.
Put it on. The big pulley is also a big fan. So it should blow air on the pumping unit. This is it. If it spins in the wrong direction change the polarity. If you look close you should see somvere a rotation direction indicator .
Has this unit just been installed or has it been running. Just installed check wiring. If been running check wiring for tightness on starter. Check voltage and amps. Compare amp reading to overload heaters. They will have a # on them like E-58. Look in the starter box cover and there should be a chart showing the amp range for a E-58 or what ever size heater you have. If running amps are with in range shut down remove guard and belt. Rotate by hand the motor and pump. Any problems like looseness of shaft will indicate severe problems that may be causing the trip. Next if needed ohm out and meggar the motor. you should have found your problem by now!!
Most t-30 units rotate clock wise but there are some exceptions. The best thing to do is look at the compressor belt wheel. On that belt wheel on all t-30 units will be an arrow showing the correct rotation. The arrow is actually part of the belt wheel casting so it can not be removed.
Try tightening the drive belt first. As pressure builds a loose belt will start slipping and slows down . It will eventually stop if not cut off!! If this is not the problem remove the drive belt and run the motor 5 minutes or so and see if it runs OK. While the belt is off and motor not running turn the compressor by hand. If it hard to rotate it may be bad. .I have seen both bad motors and pumps from the factory on new units. It's very seldom it happens but can and has.Also look on the fly wheel. Their should be an arrow showing correct rotation. Make sure rotation is correct. since it is 1 ph it should be. If motor or compressor is bad there should be an 800 # on the tank. Give it a call or call your nearest IR distributor.You can also call the 800 # and talk with someone in tech support.
Yes. There should be a label on the motor indicating how to wire it for either voltage, something like the one shown here (which is also reversible - if yours is reversible, be sure you get the correct direction if you are going to change the wiring.)
The label is sometimes under the cover where you connect the wires. If not, you should be able to find a wiring diagram for it on-line once you determine the model number of the motor.