teardropty Posted April 13, 2022 Report Share Posted April 13, 2022 I recently was given an older Hot Springs Grandee Hot tub in good shape. My existing 220volt connection is a typical Square D 50amp subpanel that has ran my previous hot tub for years. When I went to connect my HS Grandee I came across mention that I actually needed a special subpanel from HS (a 20amp and 30amp breaker setup). Upon checking into it that panel is $600+. That isn't in the budget. My question is: Is there any way to SAFELY use the panel I have? Maybe put in a 20amp and 30amp GFI breakers or something else? Any ideas are appreciated. Thanks in advance. Quote Link to comment Share on other sites More sharing options...
cranbiz Posted April 13, 2022 Report Share Posted April 13, 2022 If your existing panel has the slots to retrofit it for the 20A/30A Watkins set up, then yes. Their panel is nothing fancy. It's a 4 or 6 slot (depending on the vendor) sub panel with 20A and 30A GFCI breakers. 1 Quote Link to comment Share on other sites More sharing options...
ratchett Posted April 13, 2022 Report Share Posted April 13, 2022 18 hours ago, teardropty said: My question is: Is there any way to SAFELY use the panel I have? Maybe put in a 20amp and 30amp GFI breakers or something else? Yep, that's correct - Hotspring Hot tubs utilize two breakers - if you have an existing subpanel you can grab a 20 amp and 30 amp breaker and wire it up. Be sure to study the wiring diagram on the hot tub thoroughly. Many novice electricians mistakenly wire up a Hotspring tub like a standard hot tub and it doesn't work correctly (but they often try to wire up to a single 50-amp breaker - unlike you who actually did your research first lol) Quote Link to comment Share on other sites More sharing options...
teardropty Posted April 14, 2022 Author Report Share Posted April 14, 2022 Thanks for the replies. So I am understanding this correctly, as long as my existing subpanel will accept it, I can break down the 220v/50amp double pole feed coming into the subpanel, down into 1 - 20amp 110v single pole GFCI breaker and 1 - 30amp 110v single pole GFCI breaker? Am I thinking of that correctly? Thanks. Quote Link to comment Share on other sites More sharing options...
cranbiz Posted April 14, 2022 Report Share Posted April 14, 2022 Is your tub 110V or 220V? For a 220V tub, you need to use a 20A 220V GFCI and a 220V 30A GFCI. Quote Link to comment Share on other sites More sharing options...
microasianair Posted May 20, 2022 Report Share Posted May 20, 2022 I ma trying to connect my Grandee with the 76858 50/60 heater relay board to a 2 wire 230volt system using a 20 and 30 GFCI. This does not have the white 110 neutral wire, only a neutral and a 230 volt hot. I am looking for the proper connection. I believe it will be found on the install sheet for the 76858 board. Thanks! Quote Link to comment Share on other sites More sharing options...
cranbiz Posted May 23, 2022 Report Share Posted May 23, 2022 How many wires do you have from the sub panel to the tub? Quote Link to comment Share on other sites More sharing options...
Steven manning Posted January 9, 2023 Report Share Posted January 9, 2023 I have a hot spring spa grande from the spa to sub panel there's 6 wires 1blue 1 yellow 1 brown 1 white 1 red and 1 black I'm not sure where the yellow and brown wires go all the diagrams I've seen only show 4 no yellow or brown where do they go Quote Link to comment Share on other sites More sharing options...
cranbiz Posted January 17, 2023 Report Share Posted January 17, 2023 Please start a new thread. In it post pictures of the spa pack, and the wiring diagram on the inside cover. Are you in North America or Europe? Quote Link to comment Share on other sites More sharing options...
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