ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
AreMetal Ladders Ever OK For Electrical Work?
by gfretwell. 01/22/18 01:15 AM
VDE 0100 to introduce AFCIs
by sparky. 01/20/18 05:09 PM
MRI LED lights dimmer control replacement - wow!
by Potseal. 01/19/18 08:52 PM
Video: Inventor of the GFCI self-testing shocks
by Bill Addiss. 01/17/18 11:11 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 5 guests, and 7 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
compressor terninals #37981
05/12/04 11:50 AM
05/12/04 11:50 AM
F
frank  Offline OP
Member
Joined: May 2001
Posts: 376
windsor ontario canada
Looking for ideas?I have a 2 ton a/c condenssor where the compressor terminals have heated up and melted.They have become ark damaged to the point that they will not accept a connector. I have cleaned and replaced the terminal conectors on the wire twice now and would rather find a lasting repair than replace the whole unit as I would like to get a few more years from it.So far I'm thinking about using tiny split bolts.
Before i get flamed here I guess i need to state that I am qualified i as a refrigeration mechanic and an industrial electrician. Have been to the trade shows/whole salers ect and the genaric answer is of course to replace the comp/unit for the fear of call backs.
Thanks

Work Gear for Electricians and the Trades
Re: compressor terninals #37982
05/12/04 04:36 PM
05/12/04 04:36 PM
E
electricman2  Offline
Member
Joined: Nov 2003
Posts: 269
Thomasville, NC USA
I assume these are the ΒΌ inch quick connect terminals. Most I have seen are too close together for split bolts, even the smallest ones. I have soldered short pigtails to the terminals and then used wire nuts to connect to the circuit wiring. Not exactly the desired way but cheaper than a new compressor. Good luck


John
Re: compressor terninals #37983
05/12/04 10:37 PM
05/12/04 10:37 PM
B
Big Jim  Offline
Member
Joined: Jul 2003
Posts: 394
Denver, CO USA
Frank: if you try the soldered pigtails, remember to use soft solder and an iron, if possible. You don't want to cook the lug seals any more than necessary. For you guys that are wondering what brought out that comment, most air conditioning tube fittings are made with hard solder - almost a brazeing rod - and a torch.

Re: compressor terninals #37984
05/13/04 12:20 AM
05/13/04 12:20 AM
Trumpy  Offline

Member
Joined: Jul 2002
Posts: 8,231
SI,New Zealand
Frank,
Personally, I'd get some new terminal lugs welded on with a spot-welder, using this method the actual weld only takes a second and will withstand a lot higher temperature than a soldered or brazed weld.
Spot-welding is used in the factory, when the compressors are assembled. [Linked Image]

Re: compressor terninals #37985
05/13/04 06:18 AM
05/13/04 06:18 AM
C
chi spark  Offline
Member
Joined: Jan 2004
Posts: 105
Chicago IL USA
are the posts still intact? Do the terminals consist of a spade with a post attached? I've seen the spade fried, with the round post still sticking out enough. There are solderless terminals for these round posts-I'll try to find and post-I've seen them on hard-starts, and supco kits. No luck yet, I have used the tiny brundy splices before with no guarantee-one has performed for eight years now. Not a lot of clearance in that little compartment.

Hey Trumpy, I'm not much of a welder, but if this is a hermetic, there's only about 3/8" to 5/8" between terminals, I don't know how you could attach the grounding electrode to the terminal without sending current through one or other windings. Have you had luck with that before? It would be a good answer if it didn't compromise motor and fusite integrity.

[This message has been edited by chi spark (edited 05-13-2004).]

Re: compressor terninals #37986
05/13/04 06:23 AM
05/13/04 06:23 AM
M
maintenanceguy  Offline
Member
Joined: Dec 2001
Posts: 300
Southern NJ, USA
Your local hvac supplier will have a kit just for this. It's a set of wires with odd looking screw tight connectors made to grab onto the little bit of terminal that's left.

The counter guy will know exactly what you're looking for.

Re: compressor terninals #37987
05/13/04 06:33 AM
05/13/04 06:33 AM
E
Electric Eagle  Offline
Member
Joined: Apr 2002
Posts: 914
Alpharetta, GA
Like Maintainanceguy said, they make a terminal repair kit just for this application. I have one on my unit. Keep in mind this is just a quick fix, the root cause is that your compressor is worn out. You are pulling more power than it was designed to. I'm just waiting for an HVAC buddy to change out my unit when he has time.

Re: compressor terninals #37988
05/13/04 10:54 PM
05/13/04 10:54 PM
Trumpy  Offline

Member
Joined: Jul 2002
Posts: 8,231
SI,New Zealand
Chi spark,
A spot-welder looks like this:
[Linked Image]

Re: compressor terninals #37989
05/14/04 09:48 AM
05/14/04 09:48 AM
F
frank  Offline OP
Member
Joined: May 2001
Posts: 376
windsor ontario canada
Well I'm going to the wholesaler to see about the terminal kit.As already said i asked around and never heard of such animal.As for soldering and welding I'm not sure i can get a good joint with out butchering the refrigerant seals on the hermetic compressor terminals.There is only a 3x4 inch work space in the box so thats plan B if the terminal kit turns out to be no joy. thanks again.


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Theelectrikid
Theelectrikid
Levittown, PA
Posts: 810
Joined: April 2004
Show All Member Profiles 
Top Posters(30 Days)
Admin 21
sparky 16
Potseal 15
Popular Topics(Views)
243,592 Are you busy
180,388 Re: Forum
170,861 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.016s Queries: 14 (0.003s) Memory: 1.0009 MB (Peak: 1.1680 MB) Zlib enabled. Server Time: 2018-01-22 09:51:14 UTC