Convert 240VAC motor to 110V on a Speedair Compressor by Dayton

by Marc Hayes
(PA)

I have a Speedare compressor by Dayton model number 4B234D with motor MC015502. it is wired for 240VAC and i would like it to work on 110VAC. is that possible? how do i convert it?

thanks in advance for your help.
Regards, Marc

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Bill says...

Marc, I expect it is possible, but probably not practical unless the motor and compressor is designed to be converted.

The compressor may be designed to run properly with the power from a 220 Volt motor only. If you are going to a 120 Volt motor, I wonder if there will be enough amperage in the 120 Volt power supply to get the motor enough power to properly run the power demand of a 220 Volt compressor?

Changing motors would be fairly easy if the shaft and mounts line up. Just change the pressure switch to a 120 Volt one.

Check with Speedaire to see if the motor is convertible.

Bill

Comments for Convert 240VAC motor to 110V on a Speedair Compressor by Dayton

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Jan 16, 2016
240 to 120
by: Doug in s.d.ca

That motor is configurable for either voltage.

The wiring will be on the motor plate or under the wiring cover.

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max rpm for a pump on a speedaire 1z944b

making a compressor from pieces i have scavenged

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Bill says...

According to the Grainger website, this model pump uses a 1 or 1 1/2 HP motor.

Do verify with them, however.

Bill


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speedaire air compressor starts for 30 seconds and then cuts off

by darren
(spring tx)

starts for 30 seconds and then cuts off

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Bill says....

Darren, not a lot to go on, here.

While it's running for 30 seconds, is the pump running? Are you getting any pressure build up in the tank at all?

Before you start it again, make sure that you don't have other things pulling power from the same circuit at the same time, dump all the air in the tank to zero PSI, close the tank drain, and then try to start it again.

Anything different?

Please post your answer as a comment on this thread.

Bill

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Switch speedaire from 220 volts back to 110

by Pete
(Livermore, california)

I have a speedaire 3z323a that came wired for 110 but was switched to 220 by a friend years, ago. Now I want to switch it back. It has a connection box with 4 terminals and the common is grounded the case. Can anyone help or point me in the right direction

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SpeedAire Direct Drive 5Z032A 1HP 1 Phase Wiring

by Bill
(Fauquier County Va)

Obtained a used SpeedAire Direct Drive Compressor Model 5Z032A, 1 HP. Whoever had it before, disconnected all the 115V AC single Phase wiring. Looked for wiring information for the pressure switch to assure correct connections. Searching for same got me nowhere. Is there a wiring diagram available? Perhaps I really need a manual of some sort? Any help will be much appreciated.
Thanks, Bill H

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Bill says...

Hi Bill. Did they leave the pressure switch on the compressor. If so, look under the pressure switch cap. There is often a wiring diagram there.

Or, go to the local compressor store, look for their pressure switches, and have a look at one of them. The wiring diagram will be there, for sure.

Cheers,

Bill

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