ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
You will never guess
by grich - 02/24/21 07:18 PM
Lock-down Thread
by Bill Addiss - 02/24/21 04:40 PM
New tool
by SMOKEYBOB - 02/15/21 04:59 PM
Split Bus Breaker Panel
by gfretwell - 02/15/21 02:30 PM
Sierraplex recpts
by gfretwell - 02/15/21 02:27 PM
New in the Gallery:
Facebook follies, bad wiring
FPE in Germany pt.2
Who's Online Now
1 registered members (Scott35), 28 guests, and 19 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 3 1 2 3
Electric Hand Dryers #187759 07/08/09 08:46 PM
Joined: Mar 2004
Posts: 193
G
GA76JW Offline OP
Member
Can anyone point me in the right direction with the 2008 code? We are installing Hand dryers in the bathrooms at work and I can't seem to find anything in the code pertaining to this specifically.

Is there anything in there I should be aware of?

Thanks for the help.


"If common sense was common, everyone would have it"-not sure, someone here

2017 / 2014 NEC & Related Books and Study Guides
Re: Electric Hand Dryers [Re: GA76JW] #187761 07/08/09 09:20 PM
Joined: Jan 2005
Posts: 5,316
renosteinke Offline
Cat Servant
Member
That's an interesting issue.

Most of those dryers are 240v .... which begs the question: to GFI or not?

Re: Electric Hand Dryers [Re: renosteinke] #187762 07/08/09 09:28 PM
Joined: Mar 2004
Posts: 193
G
GA76JW Offline OP
Member
My main question comes with the branch circuit aspect of it. My foreman has told us to drop a 12/2 MC cable down to it and this just doesn't feel right, but I still don't see anything relating to it in the code. I've been scanning and looking for the past 1/2 hour or so.


To GFI or not is a good question too. As well as distance from the edge of a sink maybe?

Last edited by GA76JW; 07/08/09 09:29 PM.

"If common sense was common, everyone would have it"-not sure, someone here

Re: Electric Hand Dryers [Re: GA76JW] #187766 07/08/09 10:17 PM
Joined: Jan 2005
Posts: 5,316
renosteinke Offline
Cat Servant
Member
12/2 simply isn't enough. Look at the nameplate; I think you'll find you need at least #10, and you'll want to have that red wire as well as a neutral. After all, some of the new ones have motion sensors, etc in them - so they might need that neutral.

I don't think the NEC specifically addresses the issue; the usual ampacity rules apply.

Since you're using MC, you really want to get it right the first time.

ALSO .. pay special attention to mounting height. Some folks place them so thay can do double duty as hair dryers.

Re: Electric Hand Dryers [Re: renosteinke] #187768 07/08/09 11:19 PM
Joined: Oct 2006
Posts: 745
E
EV607797 Offline
Member
I've never encountered these dryers with heat that didn't have a 20A rating on the name plate, but then the only ones that I've worked with have been 120 volts. That being said, a 30 amp circuit would be required using #10.

The "turbo jet" ones that just use high-velocity air are different and a 20 amp circuit will suffice.

GFCI protection? Not that I can tell.


---Ed---

"But the guy at Home Depot said it would work."
Re: Electric Hand Dryers [Re: EV607797] #187772 07/09/09 10:34 AM
Joined: Dec 2002
Posts: 317
S
sabrown Offline
Member
I have not come across any that were beyond 20 amp. I also specify a permanent breaker lock to keep the area clean.

Re: Electric Hand Dryers [Re: sabrown] #187782 07/09/09 06:04 PM
Joined: Mar 2004
Posts: 193
G
GA76JW Offline OP
Member
well right now we are just roughing in the area, so we don't have the actual equipment to reference with. This is the first time I have roughed in a bathroom with hand dryers.


I do want to ask why you think we might need the 10-3 wire though?


"If common sense was common, everyone would have it"-not sure, someone here

Re: Electric Hand Dryers [Re: GA76JW] #187783 07/09/09 06:18 PM
Joined: Dec 2001
Posts: 300
M
maintenanceguy Offline
Member
I've installed or worked on lots of these. I've never seen one that had GFCI protecton nor installed one that way. I can't think of any rule that would require that unless there's a local ordinance. I'm assuming these will be hardwired and not plug connected.

Re: Electric Hand Dryers [Re: maintenanceguy] #187784 07/09/09 06:43 PM
Joined: Jul 2004
Posts: 9,568
G
gfretwell Offline
Member
I went through my wife's catalogs from her shopping expedition into this area and the dryers seem to range from 1500 to 2300 watts for the conventional ones and 1100 watts for the new "high velocity" green dryers.
If you are going to have 240v dryers I see no reason why 14-2 would not work but 12-2 is the safe bet.


Greg Fretwell
Re: Electric Hand Dryers [Re: gfretwell] #187785 07/09/09 06:47 PM
Joined: Apr 2002
Posts: 7,233
HotLine1 Offline
Member
GA:
A quick heads up on this....
Is your facility subject to ADA (American Disability Act) commonly called 'handicapped'. If it is, watch the mounting heights.



John
Page 1 of 3 1 2 3

Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

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

 

Member Spotlight
noderaser
noderaser
Portland, Oregon, United States
Posts: 404
Joined: March 2007
Show All Member Profiles 
Top Posters(30 Days)
Popular Topics(Views)
275,373 Are you busy
209,273 Re: Forum
196,564 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3