240V Wiring for Lift

[Homewrecker]

I will be installing a 2 post lift this spring/summer. I've got a couple of 240V drops in the garage with one of them being used by a welder via a wall receptacle. My intention was to use the other one for the lift.

The wiring diagram (attached) calls for connections to the 'L' ("active" wire), 'N' ("neutral" wire) and Ground Wire. The existing wiring for the drop I want to use is 10-3 (was expecting to see 10-2 in the box) which gives me Black, Red, White and Ground. I get 240V only across the Black and Red Wires. If I wired it like the instructions state I will only get 120 across the Black ('L') and White Wires ('N') at the Power Unit. The wiring diagram calls for a "neutral" wire although for 240V there there technically isn't one yet the white wire in this circuit does seem to provide a neutral for other purposes.

In this case do I wire the 'L' and 'N' Terminals to the Black and Red Wires, plus the Ground Wire and then cap the White Wire in the device box?

 

[pattenp]

If it's a 240V pump a neutral shouldn't be needed. Something isn't adding up from what you're saying. You need to provide lift brand and model. Sorry but I'm not going to download a PDF of unknown source.

 

[Homewrecker]

It's a Peak 209X model. The PDF is a tiny excerpt from the manual and not a full document. Your call though.

 

[wyliesdiesels]

if the motor is 240v then you wire it to the 2 ungrounded conductors. its most likely a foreign made motor where they use 1 ungrounded conductor and neutral.... just cap the neutral and connect the ground wire

 

[Homewrecker]

if the motor is 240v then you wire it to the 2 ungrounded conductors. its most likely a foreign made motor where they use 1 ungrounded conductor and neutral.... just cap the neutral and connect the ground wire

That's what I figured. I'll connect the Black to 'L', the Red to 'N' plus the Ground Wire and then cap the white in the device box.

It's definitely a Chinese lift and power unit. They actually call it a 220V unit still.

 

[wyliesdiesels]

That's what I figured. I'll connect the Black to 'L', the Red to 'N' plus the Ground Wire and then cap the white in the device box.

It's definitely a Chinese lift and power unit. They actually call it a 220V unit still.

Thats because they run on 380Y/220...

If your motor is rated for 220v 50Hz it will spin faster on 240v 60hz...

 

[Norcal]

In the 50 Hz world, 230V is a line to neutral voltage, which is why your seeing L&N, brown would be hot, and blue is neutral, in the US that is what we would expect for 120V, the line and neutral connections that is, just connect both line conductors, it's not going to care if it is line to line, or line to neutral.

 

[Chartersj]

Sorry to revive this thread but i'm going through the same situation.
I'm hooking up a Peak DP-10 and the manual makes it a little confusing.

Did you run 240v to the lift, then take one 120v to the (L) and the other 120v to the (N)?
Coming out of the electrical box on the lift is a black, white, and green. Line, Neutral, and ground.
The motor name plate shows its rate for 220v 60Hz

 

[mike93lx]

Sorry to revive this thread but i'm going through the same situation.
I'm hooking up a Peak DP-10 and the manual makes it a little confusing.

Did you run 240v to the lift, then take one 120v to the (L) and the other 120v to the (N)?
Coming out of the electrical box on the lift is a black, white, and green. Line, Neutral, and ground.
The motor name plate shows its rate for 220v 60Hz

Yes, you have that right. You don't need a neutral, so it can be just two hots and a ground to the lift.

 

[Chartersj]

Yes, you have that right. You don't need a neutral, so it can be just two hots and a ground to the lift.

Excellent. Thanks!

 

[wyliesdiesels]

Sorry to revive this thread but i'm going through the same situation.
I'm hooking up a Peak DP-10 and the manual makes it a little confusing.

Did you run 240v to the lift, then take one 120v to the (L) and the other 120v to the (N)?
Coming out of the electrical box on the lift is a black, white, and green. Line, Neutral, and ground.
The motor name plate shows its rate for 220v 60Hz

since the motor is 240v (220) technically it is NOT a neutral even though it is white. 3 conductor cordage doesnt come with black red and green conductors, so the white conductor becomes the second hot/ungrounded conductor. this confuses some people but a 240v motor doesnt need a neutral. you could tape the white with red or black tape if it helps with the confusion.

 

[Chartersj]

since the motor is 240v (220) technically it is NOT a neutral even though it is white. 3 conductor cordage doesnt come with black red and green conductors, so the white conductor becomes the second hot/ungrounded conductor. this confuses some people but a 240v motor doesnt need a neutral. you could tape the white with red or black tape if it helps with the confusion.

That helps clear it up. Thanks so much for the help