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Posted By: Admin What's Right Here? - 06/20/05 08:16 PM
(submitted via Joe Tedesco)
Quote
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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Posted By: e57 Re: What's Right Here? - 06/20/05 11:43 PM
Whats right? It's off!
Posted By: Trumpy Re: What's Right Here? - 06/21/05 12:32 AM
What's right here?.
Well, the Phase Sequence in the top pic looks to be OK. [Linked Image]
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.
Unbelievable. [Linked Image]
Posted By: electure Re: What's Right Here? - 06/21/05 12:36 AM
Actually had to close knife blades with insulated handles of linemans pliers.

I certainly hope you don't mean that you energized this.
Posted By: pauluk Re: What's Right Here? - 06/21/05 11:56 PM
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Well, the Phase Sequence in the top pic looks to be OK

Mike,
Take off your Commonwealth thinking cap and put on your American one instead...... [Linked Image]
Posted By: techie Re: What's Right Here? - 06/22/05 12:56 AM
What's right.. hmm.. they used wirenuts.. beyond that, it looks pretty hopeless..

lots wrong with it..


poor workmanship
romex
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?
Posted By: John Crighton Re: What's Right Here? - 06/22/05 06:06 PM
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?
Posted By: mvpmaintman Re: What's Right Here? - 06/26/05 05:24 PM
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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