American hot tub connections.

[Fella82]

Hi
I have been asked to connect a s series propak hotub. The installation manual is all American based and the wiring diagrams for the connections is all American. I am not to sure if a uk 240v supply can be connected. The terminal block has four points to connect. Line 1 120v line 2 120v ground and neutral. The hot tub can run on 240v but it is with a 240v across line1 and line2. Do I need to transform the voltage to 110v therefore I may need two 110v transformers. Or is a case of connecting my 240v supply into line 1 and link it with line 2.
Anyone come across this before?

 

[Adie moore]

Sorry to drag this up again but I'm in exactly the same situation. Client used to live in America but has moved over here bringing her hot tub with her. As above connection available are L1 (120v) L2 (120v) N and E @ 60hz. Is the only option a new PCB?
Cheers, adie

 

[Midwest]

Think the jury was out on this last time. The best thing that I've read here, was to contact the manufacturer for advice.

 

[Adie moore]

Yeah, email them and they confirmed that new parts will be required and they gave me a link for a UK supplier.
Cheers anyway.

 

[Gardner]

Sorry to drag this up again but I'm in exactly the same situation. Client used to live in America but has moved over here bringing her hot tub with her. As above connection available are L1 (120v) L2 (120v) N and E @ 60hz. Is the only option a new PCB?
Cheers, adie

Well, three issues. If the spa needs a neutral, it then has 120 volt parts and it will not work on 230 volt L-N UK power. If its only 240 L1,L2 and G, then it will work frequency aside.

Going on to frequency, the answer is usually no. A 50Hz motor has a chance on a 60Hz supply, but the other way around will 9 out of 10 drive it into saturation unless you reduce the voltage by I think 20%.

Third the speed may hit you. The pump will have less pump rate.

Outside of changing half of the most expensive parts possibly requiring transformers... Your best option is getting a new hot tub. Not worth it.

Edit, never mind. OP received an Email saying no.

 

[Jimmyb]

last one I did I connected across l1 & l2, it worked fine as still is but you lot have me worried now

 

[Gardner]

last one I did I connected across l1 & l2, it worked fine as still is but you lot have me worried now

If there is no "N" terminal the machine will work fine in terms of potential. Frequency might be bothering it though.

 

[shanky887614]

If there is no "N" terminal the machine will work fine in terms of potential. Frequency might be bothering it though.

look on the back of most modern electronics and some old and it will say 50/60hz. modern electronics work on both.

for example my pc power supply can take any voltage from 100-250v 50/60hz and work fine.

it used to be that you needed to flick a jumper to the right voltage but that is a thing of the past now