Sundance Maxxus Electrical Question

[Johnny D]

In the instruction manual the following is stated:

US/Canada 60Hz Model

Voltage 240VAC 240VAC

Max. Current Draw 38A 48A

Number of Wires 3 3

Circuit Breaker (2-Pole) 50A* 60A**

* In this configuration, the heater will not operate while any two

jets pumps are running.

** In this configuration the heater will operate while any two jets

pumps and the blower are running but will not operate when

all three jets pumps are running.

I currently have 50amp service. As I understand it the heater will not come on when operating 2 pumps but with 60 amp the heater will. I beleive the Maxxus has 3 pumps. Is the only way to get all three pumps working is with a 60amp circuit? (And then with all three the heater will loadshed-turn off)

[Roger]

[

You are absolutly correct.

[Jim_The_Jim]

[quote

In the instruction manual the following is stated:

US/Canada 60Hz Model

Voltage 240VAC 240VAC

Max. Current Draw 38A 48A

Number of Wires 3 3

Circuit Breaker (2-Pole) 50A* 60A**

* In this configuration, the heater will not operate while any two

jets pumps are running.

** In this configuration the heater will operate while any two jets

pumps and the blower are running but will not operate when

all three jets pumps are running.

I currently have 50amp service. As I understand it the heater will not come on when operating 2 pumps but with 60 amp the heater will. I beleive the Maxxus has 3 pumps. Is the only way to get all three pumps working is with a 60amp circuit? (And then with all three the heater will loadshed-turn off)

[/quote

All three jet pumps should be able to run, but with the heater off at that time. According to what you published.

[Johnny D]

Looks like then I need to figure out how to get 60 amp to the spa if I want to run three jets. Wouldn't make sense to limit the operation to two pumps if I have three. Oh, well. Glad I found out now rather than when I went to turn on the spa. Haven't started construction yet.

I think I may have 6 ga wire. the breaker in the panel says 50 amp. Is it something I can just change to 60??. Is 6gauge enough to carry 60 amps? It runs from one end of the house to the other through walls, no telling how long a run it is.

[Flyonthewall]

The way i read those specs it doesn't say you can't run all the pumps and blowers on 50 amp. it just states you can't run the heater with 2 pumps running. generally heaters draw way more amps than pumps. check with sundance. get a cost estimate to upgrade to 60 amp and decide if it is worth. i have a 110v tub that won't allow the jet pump to run at the same time the heater runs. i don't notice any major drop in temp in the 15 or so minutes i run the jets. are you ready with the 50 amp as we speak or is there some cost to prepare that as well? if you are ready maybe you can try the 50 amp setup first and if you don't like it convert.

[Flyonthewall]

i better be clear though, i am not an electrical engineer. nor do i portray one on internet forums.

[Trigger]

i better be clear though, i am not an electrical engineer. nor do i portray one on internet forums.

Wire size is not only on the draw, but on the leagth of the run. Here's a handy resource;

http://online.physics.uiuc.edu/courses/phy..._Wire_Gauge.pdf

And since I have too much time on my hands today here is the pre delivery instructions.

Page 16 runs it down for you.

http://www.sundancespas.com/Communications...PreDelGuide.pdf

Assuming your old installation was up to code, and your using the same pigs tail, and you are not 100 feet in the woods, nor in the mojave dessert, Upgrade te breakers and the 6ga will be fine.

I am not am electrical enigeer, but I did double check with one.

[Johnny D]

To further clarify or muddy the waters:

As I understand this:

50 amp 1 pump w/heater OR

2 or 3 pump no heater

60 amp 1 or 2 pumps w/heater

3 pump no heater

So the difference is that you can run the heater with 2 pumps vs 1 on the 50 vs 60 amp. Checked with a Sundance dealer and this was his take. Any further comments?

This basically confirms what Jim_The_Jim wrote:

All three jet pumps should be able to run, but with the heater off at that time.