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#121163 - 06/20/05 01:16 PM What's Right Here?
Webmaster Offline


Registered: 10/07/00
Posts: 3142
Loc: NY, USA
(submitted via Joe Tedesco)
Recieved call rooftop heating&cooling unit not functioning. Upon inspection found somewhat of a problem. Brand new unit, old disconnect manually closing switch would not work. Actually had to close knife blades with insulated handles of linemans pliers.

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#121164 - 06/20/05 04:43 PM Re: What's Right Here?
e57 Offline

Registered: 05/27/03
Posts: 2837
Loc: S.F.,CA USA
Whats right? It's off!
Mark Heller
"Well - I oughta....." -Jackie Gleason

#121165 - 06/20/05 05:32 PM Re: What's Right Here?
Trumpy Offline


Registered: 07/05/02
Posts: 8532
Loc: SI,New Zealand
What's right here?.
Well, the Phase Sequence in the top pic looks to be OK.
Not a lot else, though.
I see in the bottom pic that this unit has been "modified" since it left the factory, hence the loose Ground wire.
Let's face it, these days if you're not young, you're old - Red Green grin

#121166 - 06/20/05 05:36 PM Re: What's Right Here?
electure Offline


Registered: 12/24/00
Posts: 4226
Loc: Fullerton, CA USA
Actually had to close knife blades with insulated handles of linemans pliers.

I certainly hope you don't mean that you energized this.

#121167 - 06/21/05 04:56 PM Re: What's Right Here?
pauluk Offline

Registered: 08/11/01
Posts: 7693
Loc: Norfolk, England
Well, the Phase Sequence in the top pic looks to be OK

Take off your Commonwealth thinking cap and put on your American one instead......

#121168 - 06/21/05 05:56 PM Re: What's Right Here?
techie Offline

Registered: 05/17/05
Posts: 240
Loc: palo alto, ca usa
What's right.. hmm.. they used wirenuts.. beyond that, it looks pretty hopeless..

lots wrong with it..

poor workmanship
lack of chase nipple/bushing
lack of connector on flex
improper phase color (assuming 3 phase)
improper phase sequence
improper grounding
inoperative equipment
improperly sized wiring?
did I mention the poor workmanship?

#121169 - 06/22/05 11:06 AM Re: What's Right Here?
John Crighton Offline

Registered: 05/16/05
Posts: 172
Loc: Southern California
Too bad the black wire wasn't blue, it would have made pic #1 look so much more patriotic (especially when the fireworks start).

I especially like the way the installer so conscientiously left the romex EGC wrapped in paper (pic #3), so it wouldn't "short" to the box.

On a slightly more serious note... judging from pic #4, is this really 3-phase equipment? The white wire wanders out of the picture, unlike the black and red, which are spliced to the unit primary, so maybe it's really a neutral? If so, why the 3-pole disconnect?

#121170 - 06/26/05 10:24 AM Re: What's Right Here?
mvpmaintman Offline

Registered: 09/15/03
Posts: 113
Loc: Manhattan, Kansas, USA
this looks suspiciosly like one of the local HVAC contractors work -- they always alter the equipment to make it work better :eek


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