ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Violation?
by renosteinke - 01/27/23 09:52 PM
Does NEC 551.71 (F) apply to dwellings?
by BigB - 01/20/23 10:46 AM
Power submeter connections
by HotLine1 - 01/19/23 09:09 AM
AFDD's coming to the UK
by Texas_Ranger - 01/17/23 07:22 PM
New in the Gallery:
Burger King crown sillyness
Burger King crown sillyness
by wa2ise, December 11
240/208 to a house
240/208 to a house
by wa2ise, October 9
Who's Online Now
1 members (gfretwell), 52 guests, and 12 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#106108 06/20/05 03:16 PM
Joined: Oct 2000
Posts: 3,672
Likes: 2
Admin Offline OP
Administrator
Member
(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.
[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

Stay up to Code with the Latest NEC:


2020 NEC & Related Reference & Study Guides
2020 NEC & Related Reference & Study Guides
Pass Your Exam the FIRST TIME with these Exam Prep Combos:
 

>> Master Electrician Exam Prep     >> JourneyMan Electrician Exam Prep
 

#106109 06/20/05 06:43 PM
Joined: May 2003
Posts: 2,876
E
e57 Offline
Member
Whats right? It's off!


Mark Heller
"Well - I oughta....." -Jackie Gleason
#106110 06/20/05 07:32 PM
Joined: Jul 2002
Posts: 8,432
Likes: 3
Member
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]

#106111 06/20/05 07:36 PM
Joined: Dec 2000
Posts: 4,291
Member
Actually had to close knife blades with insulated handles of linemans pliers.

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

#106112 06/21/05 06:56 PM
Joined: Aug 2001
Posts: 7,520
P
Member
Quote
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]

#106113 06/21/05 07:56 PM
Joined: May 2005
Posts: 247
T
Member
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?

#106114 06/22/05 01:06 PM
Joined: May 2005
Posts: 178
J
Member
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?

#106115 06/26/05 12:24 PM
Joined: Sep 2003
Posts: 123
M
Member
this looks suspiciosly like one of the local HVAC contractors work -- they always alter the equipment to make it work better :eek


Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *
2023 National Electrical Code (NEC)
2023 NEC Now Available!
 
* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
CDS
CDS
Nicholson Ga
Posts: 34
Joined: June 2006
Top Posters(30 Days)
BigB 9
triple 3
Popular Topics(Views)
302,487 Are you busy
231,878 Re: Forum
216,501 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5