Posted: 2/18/2008 8:01:54 AM EDT
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I am wiring a 220V Hot tub. I have a four wire from the box 2 hots a neutral and a bare ground. The pump motor has connects for two hots a neutral and a ground. The heater box has a different ground on the outside of the case. Can the case ground and pump ground go on the ground from the service box are do I run a seperate ground? |
| I would say ground the jacuzzi motor to the box. But this is something you really should seek an electrician for. is it one of those older jacuzzi's that have an electrical on/off switch? or a pneumatic button? I would definately get it done by someone who knows what they are doing. |
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The difference in cords v. appliances is a Code (National Electrical Code, NFPA 70) requirement from a few years ago. Not all manufacturers of electrical appliances have changed their wire setups to reflect the change. However, a licensed electrician should be able to figure out the way to hook everything up safely. <hint hint> Tango7 - licensed electrician. |
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You are using a GFCI load center right? I assume you are refering to the copper groung lugs on the motor and heater manifold. Everything on the spa is grouned to the control box which is grounded to the load center and back to the main panel. All metallic components under the spa should have grounds lugs so they can be bonded to the control box giving you a second ground. ETA If have have done most of the work already it would be wise to pay an electrician to check it out for your own peace of mind. |
I am not electrician: that said, use only a single ground wire from the service to the tub. Make all tub internal ground connections to that wire. Tub supply should be on a GFCI breaker. |
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I'm going to disagree with all the "experts" here. It's pretty simple: - Wire the hot tub yourself - Will all your guns and ammo to [email protected] - Enjoy your new hot tub (for a while anyway). 
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I'm also an electrician. Seriously, get one to come out and hook it up right. You don't want to mess it up and possibly get someone hurt. You need to have everything grounded properly, wire conductor sizes right, GFCI plugs/recepticles on the main power, etc etc. I'd honestly say it's beyond the realm of a do-it-yourselfer job. There's LOTS of code that addresses hottubs and spas. It's honestly on the books for very good reasons. I've seen some DANGEROUS shit done before. Probably not the answer you were wanting, but that's just the way I see it. Professional opinion. For whatever it's worth. |
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After talking to Electrician buddy it is pretty straight forward. My old tub was on a GFI breaker so no big deal. My buddy told me under no circumstance run a additional ground unless I do it to the ground in the load center itself. I am going to test it on the wifes cat first.
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