ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

Topic Options
Rate This Topic
#214715 - 01/14/15 08:35 PM Please help me wire this old Teco motor!
Redmarshall Offline
New Member
Registered: 01/14/15
Posts: 1
Loc: Vancouver BC Canada
I have an old Eaton's of Canada TECO electric motor that I am trying to wire properly but I cant find any diagrams on the web for this model.

It is a 110/220 volt, 9.4/4.7 amp, 60 hz, 3/4 hp, single phase, capacitor start motor.

There are only 5 wires:

Black
Red
White
Yellow
Blue

I just replaced the cap.

The motor seems to run fine when I connect The black wire to the hot and the white to the neutral but what are the other 3 wires for?


Attachments
20150114_175911.jpg


Top
Work Gear for Electricians and the Trades
#214717 - 01/14/15 11:59 PM Re: Please help me wire this old Teco motor! [Re: Redmarshall]
gfretwell Offline


Member
Registered: 07/20/04
Posts: 9039
Loc: Estero,Fl,usa
Are you sure there is not an orange wire tucked in there somewhere?

Usually the red and black are the start windings and you have two run windings (for 120 or 240v). They get wired in series for 240. If you reverse the relationship between the start and run windings you reverse the motor.



_________________________
Greg Fretwell
Top
#214737 - 01/17/15 07:52 PM Re: Please help me wire this old Teco motor! [Re: Redmarshall]
dougwells Offline


Member
Registered: 05/03/03
Posts: 1137
Loc: kamloops BC Canada
That is a flash from the past The Eatons brand Teco smile
Top
#214747 - 01/19/15 12:05 AM Re: Please help me wire this old Teco motor! [Re: Redmarshall]
Scott35 Offline

Broom Pusher and
Member
Registered: 10/19/00
Posts: 2707
Loc: Anaheim, CA. USA
Adding to Greg's Post...

For a Dual-Voltage Capacitor Start Motor, with Two Main (Run) Windings and One Auxiliary (Start) Winding, there Should be a total of (6) Wires:
  1. Terminal #1 to Main Winding #1: Color = Blue,
  2. Terminal #2 to Main Winding #1: Color = White,
  3. Terminal #3 to Main Winding #2: Color = Orange,
  4. Terminal #4 to Main Winding #2: Color = Yellow,
  5. Terminal #5 to Capacitor, via Start Switch: Color = Black,
  6. Terminal #8 to Auxiliary Winding: Color = Red.


For Low Voltage Counter-Clockwise Rotation (Forward), the following Leads are connected together - with the Line Input Terminated to:

Line #1: Leads 1, 3 and 8
Line #2: Leads 2, 4 and 5

For Low Voltage Clockwise Rotation (Reverse), the following Leads are connected together - with the Line Input Terminated to:

Line #1: Leads 1, 3 and 5
Line #2: Leads 2, 4 and 8



Quote:


I just replaced the cap.



Did you notice the Leads connected to the Capacitor?
If possible, disconnect the Capacitor, then trace out the Leads on both sides of the Capacitor, in order to identify the Auxiliary Circuitry (Aux. Winding, Start Switch and Capacitor Leads) from the Main Windings' Circuitry and Leads.

Quote:


The motor seems to run fine when I connect The black wire to the hot and the white to the neutral but what are the other 3 wires for?



Are these Connections being made at the Reversing Switch Termination Box, or elsewhere?
Also, are you connecting the Motor to 120VAC?

From the descriptions, I would say the Motor is running on only One Main Winding, in the Reverse Direction (Clockwise Rotation, as viewed from the Motor's Shaft).

Will post more after OP's Feedback.

--Scott (EE)
_________________________
Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!
Top

Member Spotlight
Member Since: 12/24/00
Posts: 4259
New in the Gallery:
SE cable question
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box


Who's Online
0 registered (), 54 Guests and 8 Spiders online.
Key: Admin, Global Mod, Mod
 
New in the Gallery:
SE cable question
 
Top Posters (30 Days)
Admin 47
HotLine1 43
gfretwell 19
Ruben Rocha 12
Trumpy 9
 
Newest Members
Freecrowder, clee512, Jdscott2005, FAIZAN, Regitest2

ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals