Whirlpool tub bond lug

[jack horner]

The NEC doesn't require you to do this. If an inspector is requiring it he's incorrect unless some misguided instructions say it's required.

You are right. Some plumber wrote these instructions. If you read them they ask for 2 seperate #8 conductors to be run back to the "main panel" or "other approved location" One for the heater and another for the pump. WRONG!! Comply with CODE! No metal piping...No metal grounded surface....No bonding required.

 

[raider1]

I don't feel out of place asking that it be grounded unless you can provide instructiosn that show the manufacturer doesn't require same.

If the pump requires grounding, this will be accomplished by the EGC that is brought with the branch-circuit that is feeding the hydro-massage bathtub. The bonding requirement of 680.74 is not to provide grounding but to bond together any metal piping systems and any grounded metal parts in direct contact with the circulating water.

There is no reason to bring a #8 wire from the motor on the bathtub to the panel. There is already a EGC run from the motor (If the motor is not double insulated) back to the panel.

Chris

 

[M. D.]

THANK YOU! THANK YOU! M.D.,
This topic has been discussed often on the forum. Many moons ago I stated that in my inspections I had seen manufacturer's instructions that required a #8 from the bond lug (motor and/or heater) to the electrical panel. I was challenged, chastized, etc. and have been looking for the rare instruction sheet that shows this requirement. Thanks to you my hunt is over .....

You are welcome , I found another set page, 5 & 6.

http://www.homelivingsolutions.com/pdf/dignity-installation-9-19-05.pdf

I don't quite know what to say about these instructions or who, as late as 2005 or 2006 wrote them ,.but I'll tell you my "faith" in U.L.'s ability has been somewhat deminished .

 

[donselectric]

is it 4 in sq or over ?
if it is bond it
also if the instructions tell you to do it
a certain way then thats the law.
code says install by manu instructions

 

[RUWIREDRITE]

Bonding of metals

Bonding of metals

Whirlpool tub,
I'm assuming that means that this tub is located indoors perhaps in a master bathroom and not a Hot tub on the deck. I understand you stated all the plumbing was non- metallic, but how about that fancy Moen fixture feeding the whirlpool. I'm quite sure the're not plastic too, if they exceed 4 inches and length and are insulated on non metallic lines, they must be bonded.

 

[Dennis Alwon]

Whirlpool tub,
I'm assuming that means that this tub is located indoors perhaps in a master bathroom and not a Hot tub on the deck. I understand you stated all the plumbing was non- metallic, but how about that fancy Moen fixture feeding the whirlpool. I'm quite sure the're not plastic too, if they exceed 4 inches and length and are insulated on non metallic lines, they must be bonded.

And what article are you quoting that says this for a hydromassage tub

 

[celtic]

... how about that fancy Moen fixture feeding the whirlpool. I'm quite sure the're not plastic too, if they exceed 4 inches and length and are insulated on non metallic lines, they must be bonded.

Why?
Are they and the 4" copper nipples part of "metallic piping system"?
..or are they just faucets and connections?

 

[RUWIREDRITE]

Bonding

Bonding

If the faucets or faucet connections exceeding 4 inches in length and can possibly be energized they must be bonded as stated with all metallic supplies to a pool, hydromassage tub or spa. I will look up the Article number in a bit.

 

[jack horner]

is it 4 in sq or over ?
if it is bond it
also if the instructions tell you to do it
a certain way then thats the law.
code says install by manu instructions

Where did this 4" thing come from? I disagree

 

[jack horner]

If the faucets or faucet connections exceeding 4 inches in length and can possibly be energized they must be bonded as stated with all metallic supplies to a pool, hydromassage tub or spa. I will look up the Article number in a bit.

No need to look it up. Look at my first post. It's not there

 

[stickboy1375]

How will a 4" nipple possibly be energized?

 

[celtic]

Give him some to time to do his research.
Let's be fair about it.

 

[RUWIREDRITE]

my bad

my bad

Celtic ,
Id did find the article but it was under pool bonding not, whirl pools and hydro massage tubs, sorry, gotta get new glasses.

 

[stickboy1375]

Its all good.... we're all here to learn....

 

[celtic]

Well that was honest.
Thank you.

 

[RUWIREDRITE]

honest

honest

I been calling them senior moments lately.

 

[monkey]

This has been a problem on home inspection reports. They will see a jacuzzi tub with an empty bonding lug on the motor and write it up as a shock hazard and put in the report to have it bonded by a licensed electrician, but there will be nothing metallic to bond it to. Most of the time it is an existing installation with no instructions present

 

[celtic]

This has been a problem on home inspection reports. They will see a jacuzzi tub with an empty bonding lug on the motor and write it up as a shock hazard and put in the report to have it bonded by a licensed electrician, but there will be nothing metallic to bond it to. Most of the time it is an existing installation with no instructions present

The HI's need to better aware of what they are reporting as "deficiencies.
Have the buyers submit the EC's bill to to the HI, that will greatly enhance the learning curve.

 

[M. D.]

Here is another one (page 10)
http://www.sanijet.com/downloads/owners_manual.pdf

This one is pipeless and wants ;

"2) Installation of a #8 AWG solid bonding connector
(ground wire) from the lug connector
attached to the junction box to earth ground. The
#8 AWG ground wire is not provided with the bath
unit.

It seems to me that perhaps these units exceed the requirements of the NEC??

 

[infinity]

If the faucets or faucet connections exceeding 4 inches in length and can possibly be energized they must be bonded as stated with all metallic supplies to a pool, hydromassage tub or spa. I will look up the Article number in a bit.

That's not correct. Pools and hydromassage tubs have different requirements. A hydro tub does not require the metal water pipe supplying the metal faucet or the faucet itself to be bonded to anything.