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#187945 - 07/14/09 09:33 PM Pool Heaters  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,311
uhmmmm....ok, [forestgumpmode}

why can't i put a pool heater on a gfi breaker?


[Linked Image]

~S(life is like a box of wirenuts)parky~
[/forestgumpmode}


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#187946 - 07/14/09 09:46 PM Re: Pool Heaters [Re: sparky]  
renosteinke  Offline
Cat Servant
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Joined: Jan 2005
Posts: 5,316
Blue Collar Country
There's no rule against it. Indeed, many whirlpool spas come with the heaters - and everything else - GFI protected at the 50 amp feed.


#187950 - 07/14/09 10:03 PM Re: Pool Heaters [Re: renosteinke]  
HotLine1  Offline


Member
Joined: Apr 2002
Posts: 6,859
Brick, NJ USA
Sparky:
Hola mi amigo....

Perhaps the electronic ignition device (spark ignitor) is the culprit?



John

#187954 - 07/15/09 12:27 AM Re: Pool Heaters [Re: HotLine1]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,105
Estero,Fl,usa
Since they are supposed to be downstream of the pump on the pump circuit I am not sure how you avoid it.


Greg Fretwell

#187958 - 07/15/09 08:12 AM Re: Pool Heaters [Re: renosteinke]  
sparky  Offline
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Joined: Oct 2000
Posts: 5,311
Originally Posted by renosteinke
There's no rule against it. Indeed, many whirlpool spas come with the heaters - and everything else - GFI protected at the 50 amp feed.


havnen't read anything specifically stating 'pool heater must be on a GFI' , nor does the manfacture's instruction state anything of the sort (save for the usual 'call a licensed sparky' copout)

~S~


#187959 - 07/15/09 08:14 AM Re: Pool Heaters [Re: HotLine1]  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,311
Originally Posted by HotLine1
Sparky:
Hola mi amigo....

Perhaps the electronic ignition device (spark ignitor) is the culprit?



possibly so, this is a 220V gas fired heater....~S~


#187960 - 07/15/09 08:16 AM Re: Pool Heaters [Re: gfretwell]  
sparky  Offline
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Joined: Oct 2000
Posts: 5,311
Originally Posted by gfretwell
Since they are supposed to be downstream of the pump on the pump circuit I am not sure how you avoid it.


well the instructions show the heater downstream from the pool timer (if that's what you mean Greg)

the problem there is, no timer was provided .....


#187961 - 07/15/09 08:27 AM Re: Pool Heaters [Re: sparky]  
sparky  Offline
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Joined: Oct 2000
Posts: 5,311
okay, withpout digging too far into the good book here,let's dwell on the concept(s)

we're suppose to bond the living daylights outta a pool for the benifit of an equopotential plane, which greatly enhances the efficy of gfci protection right?

so here is this 220V gas fired pool heater, comes with a #8 externally mounted ground lug , says zip about gfci protection, and states in bold letters Do Not Bond to Pool Motor, ground to 'approved earth ground only'

excuse me? are we talking G-rods? what?

I've installed two 2p-gfci breakers (inside) feeding out to the pump motor and heater respectively here, with an outside disco for each, just in case....

i've also bonded it all together back to the pool's bond because that's what's been drilled into me (as well as the '08 nec)

if the infernal thing can't live on a gfci i'm not sure i'd be comfortable deleting it here...

~S~







#187968 - 07/15/09 02:09 PM Re: Pool Heaters [Re: sparky]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,105
Estero,Fl,usa
What brand heater is this? I don't see anything like that in my StaRite heater instructions.
That is one reason why I am not 100% in favor of making 110.3(B) gospel. Just because something gets translated from Chinese to say something stupid, I will still trump it with the NEC requirements.
The intent is that you can't get power to the heater unless the pump is running, hence down stream of the timer. That timer is also supposed to be 2 stage so it runs the pump 15 minutes after the heater stops. Without a timer you lose that safety feature. If the heater is wired directly to power it is even worse than that and you are depending on the flow/pressure switch to prevent a "dry fire".
As for bonding, we all know what the right answer is.


Greg Fretwell

#187974 - 07/15/09 09:19 PM Re: Pool Heaters [Re: gfretwell]  
HotLine1  Offline


Member
Joined: Apr 2002
Posts: 6,859
Brick, NJ USA
Sparky:
I'm confused now....why 220 volts to a gas fired heater?? Something in it require 220?

Ya definitely have to do as Greg said...run the pump for a cool down period, or the heater will kinda self destruct really soon. AS to the bonding....perhaps 'earth' as '08 def for ground? Lost in a language translation.


John

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