ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

Topic Options
Rate This Topic
#178054 - 05/22/08 07:07 AM Hydromassage Tub/ Blower Bonding
leespark Offline
Member
Registered: 01/17/04
Posts: 54
Loc: Massachusetts
I am wiring an indoor bathtub which has a "blower" unit. Since it doesn't actually circulate water but blows air instead is this considered a hydromassage tub by defintion?

The reason I am asking is that there is no bonding lug on the motor - in fact everything seems to be plastic. The plumbing is all plastic pex until it reaches the valves. I was planning to run the #8 solid from a grounding clamp near the valves to the motor but since there is no lug on the motor...

Should I connect the #8 solid to my equipment ground at my receptacle? I realize that is not the intent of the code to ground metal parts, rather to bond them together.

Also, the manufacturers instructions mention nothing more than to install a dedicated GFCI circuit and mention nothing about bonding etc.
Top
2017 / 2014 NEC & Related Books and Study Guides
#178055 - 05/22/08 07:27 AM Re: Hydromassage Tub/ Blower Bonding [Re: leespark]
gfretwell Online   content


Member
Registered: 07/20/04
Posts: 9039
Loc: Estero,Fl,usa
It doesn't sound like there is anything to bond and nothing likely to energize the valves. I don't suppose it would hurt to bond them to the EGC but there is no code language I know of to require it.
_________________________
Greg Fretwell
Top
#178058 - 05/22/08 09:21 AM Re: Hydromassage Tub/ Blower Bonding [Re: gfretwell]
BPHgravity Offline
Member
Registered: 04/08/03
Posts: 139
Loc: Port Charlotte, Florida
The best thing to do when you are not sure how to define an assembly or a piece of equipment is to locate the UL marking and listing. Even if the product is investigated and tested per one of the other NRTL, it will have to meet a particular standard.

For your particular instances, look for UL 1795. This would mean the tub assembly is listed as a hydrotub. Once you know that, then you can apply the requirements of Part VII of Article 680 and the UL guideinfo use and installation requirements.

In my opinion, no bonding is required per your description of the installation.


Edited by BPHgravity (05/22/08 09:22 AM)
_________________________
Bryan P. Holland, ECO.
Secretary - IAEI Florida Chapter
Top

Member Spotlight
Member Since: 12/24/00
Posts: 4259
New in the Gallery:
SE cable question
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box


Who's Online
2 registered (gfretwell, sparkyinak), 53 Guests and 10 Spiders online.
Key: Admin, Global Mod, Mod
 
New in the Gallery:
SE cable question
 
Top Posters (30 Days)
Admin 49
HotLine1 43
gfretwell 18
Ruben Rocha 12
Trumpy 9
 
Newest Members
Freecrowder, clee512, Jdscott2005, FAIZAN, Regitest2

ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals