Wiring help

[wyciwug]

Hello

I would like anyone help on wiring the motor for my compressor


I attached pictures of old and new motor with old wiring before disconnected.

Wiring came from outside to old motor at Points marked #1 for the BLACK wire, #6 for Yellow wire and green bolt for the Green wire.

However, the new motor I bought does not look the same even though I went through the selections on Zoro such as the HP, frame, and PHases, Voltage.... Please help!! I hope I did not buy the wrong one.

 

[wyciwug]

 

[dr sportster]

A diagram should be on the back of the peckerhead plate.

 

[Steve@Advance]

No pictures, but here goes...

The original motor would have been a single phase, either 120v or 220v.

Looking at the tag on the new motor, it will need to be single phase, same HP (or larger), same RPM.

There should be a wiring diagram on the tag or under the connection cover. Study the connections carefully and it will begin to make sense. The options are usually high (220v) or low (120v) voltage, match that to the power you are using, and direction of rotation.

The black and yellow (white) wires are the "lines", the green is "ground". The green will still connect to the green screw.

 

[wyciwug]

I tried but I do not understand. I tried to upload pictures but how come I don"t see the pictures I uploaded?

On the old motor: the green wire from the loom goes to the green bolt on the motor housing. The Yellow wire from the loom goes to the position # 6, then the black wire from the loom goes to the Postion #1.

 

[Steve@Advance]

Sometimes new users don't have photo privileges at first, anti spam protection.

If you can post the motor make, and model we can find the spec sheet and walk you through it.

If in doubt, don't power it up! If wrong it is ruined.

 

[wyciwug]

Hello

The old motor had 208-230 volt, I guess it will be high voltage and I follow that diagram for high voltage

The HP for the old motor says SPL (Special?)

The HP for the new Motor says 1.

I think I made a mistake looking at PH as HP. RMP is the same 3450.

 

[wyciwug]

Old motor Specs:

AO Smith
Part 7-182711-20/ SErial CA1-11
TYPE CP
FRAME P56
HZ 60
HP: SPL SF 1.00 PH 1
VOLTS 208-230
AMPS 16.0
TIME: CONT ENCL DP FORM KHH
CODE C INSUL CLASS B AMB 40C THERMALLY PROTECTED

LINE 1 AND LINE 6, NON REVERSIBLE


Motor specs
MODEL P H 56B34D2029F K
HP1 HZ 60
V115/208-230 PH 1
RPM 3450 CODE E
SF 1.15
SFA FR 56
AMB 40C INSUL CLASS B3
TIME RATING CONT TYPE B ENC. DP
HZ HP CODE
V A
RPM SFA
SF

HIGH VOLTAGE
RED+WHITE POSITION 2
BROWN POSITION 6
BLACK 4 LINE 1
1 LINE 2

 

[Steve@Advance]

Need a brand name on the new motor please.

 

[wyciwug]

Hello


I am sorry that I forgot

It is Marathon Electric motor

 

[wyciwug]

manufacture part # 56B34D2029

 

[dr sportster]

is this it ?
Untitled URL Link

 

[dr sportster]

Wrong one . I'll find it.

 

[dr sportster]

I can't seem to raise a diagram for that motor but if you have marked line 1 and line 2 is where your two hot incoming leads from your cord will go.

 

[wyciwug]

 

[wyciwug]

I got them pictures up!! Yikes!

 

[wyciwug]

 

[wyciwug]

So I assume black wire from the loom to postition# 1 on old motor will go to #4 line 1 of the new motor and the yellow wire from the loom will go to Position #1 of line 2?

D

 

[Steve@Advance]

black wire from the loom to postition# 1 on old motor will go to #4 line 1 of the new motor and the yellow wire from the loom will go to Position #1 of line 2

Yes, that is correct.

Next, check the rotation. Assuming this is a belt drive compressor, look for a direction arrow on the flywheel. If no arrow, it will turn with the cast in fan blowing toward the compressor.

If you need to reverse it, switch the red and black wires.

 

[DonTN]

wyciwug,
As I understand it, you bought a one horsepower motor. According to the data you supplied for your old motor, it draws 16 amps at 230 volts. Volts X amps equals Watts, so 16 X 230 = 3,680 Watts. There are 745.7 Watts per horsepower, so 3,680 / 745.7 = 4.93 horsepower. Based on that, I would say that you need a five horsepower motor and not a one horsepower.

 

[wyciwug]

(quoted from post at 10:19:45 11/03/16) wyciwug,
As I understand it, you bought a one horsepower motor. According to the data you supplied for your old motor, it draws 16 amps at 230 volts. Volts X amps equals Watts, so 16 X 230 = 3,680 Watts. There are 745.7 Watts per horsepower, so 3,680 / 745.7 = 4.93 horsepower. Based on that, I would say that you need a five horsepower motor and not a one horsepower.

Oh, lets me check

 

[wyciwug]

Can you recommend me a place that sells motor online?

D

 

[DonTN]

Amazon.com has what is supposed to be a replacement for your old motor, but make sure that every
thing is the same. Here is a link to it https://www.amazon.com/3450rpm-Frame-Volts-Replacement-
Compressor/dp/B0009WET9M