Hello,

We just purchased a used hot springs high life (approx 10 years old). The seller did not want to part with the sub-panel in their installation so I am installing a new sub-panel using hot springs' instructions.

I am confused about the GFCI breakers and what I view as an inconistency in the hot springs literature, though, and am looking for some help before I fire the spa up. Here goes:

- The manual states that there are to be two separate 240V circuits servicing the tub. One 20A, and one 30A. Each is supposed to be done with a GFCI breaker

- A common 6GA ground from the subpanel goes to the spa

- The 20A circuit includes hot/hot/neutral -- no problems here, the neutral goes to the gfci breaker, and then the breaker's dedicated neutral to the subpanel neutral bar

- The 30A circuit, however, is supposed to be wired up with hot/hot -- NO NEUTRAL. I cannot understand this; it seems to me that in this setup GFCI would instantly trip... no neutral is wired, and therefore there is a current difference.

Is the above correct? If so do I really need a GFCI breaker on the 30A circuit? If so how should its neutral 'load' terminal be wired (just left floating?).

I've also put in a question to the hot springs folks but am hoping to get a few educated opinions.

Thanks very much!

the 30A breaker is for your heater, and yes, it does not get a neutral. Just the two hots. The gfi will sense any current leakage from either of the two hots to ground, and will trip appropriately

Thank you. One more question: should I connect the neutral pigtail that is included with the gfi breaker on this 30A heater circuit to the neutral bus bar, since there is no 'load' neutral attached?

yes