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Old 08-31-2016, 10:05 PM   #61
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Originally Posted by Brian B-P View Post
Although the transfer switch may be able to handle 30 amps, and the wiring from panel to transfer switch may be appropriate for 30 amp, the panel is not supposed to have this size of branch circuit breaker in it.
If the main circuit breaker and a branch circuit breaker are the same size, you have what called a race condition. In the event that more than 30 amps is pulled through the transfer switch breaker (30 amp branch), does the branch breaker or the main trip first?
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Old 08-31-2016, 10:09 PM   #62
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How much trouble am I looking at to run a wire from the monitor panel to the SW6DE? From looking at the Friday pictures, it seems that I would have to pull the refrigerator and remove the back panels in all the bottom cabinets to be able to route the wire.

I've turned in my build sheet already and I don't think I could stand to hear another NO by asking Escape to run it.
Not that I mind - I am having as much fun as the rest but can we get back to the thread for a minute. Has anyone run wiring in a 21' from the monitor panel to the hot water heater and what did you have to do?
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Old 08-31-2016, 11:56 PM   #63
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I have a question about this. I checked my breaker box and the 120V circuit for my 2-way SW6DE water heater is on a 30A breaker. I am not an electrician but doesn't that mean that this mod should use a switch rated to 30A as well?
As others have mentioned, that seems a little odd.

My water heater circuit is a dedicated 15 amp breaker.

Ron
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Old 09-01-2016, 05:15 PM   #64
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Originally Posted by tdf-texas View Post
If the main circuit breaker and a branch circuit breaker are the same size, you have what called a race condition. In the event that more than 30 amps is pulled through the transfer switch breaker (30 amp branch), does the branch breaker or the main trip first?
Yes, the result is indeterminate, but whichever breaker trips the result is a safe situation, so I don't know if it's a big issue... but it may be a reason to not allow a 30 amp branch circuit breaker. If that's the reason, 25 amps would seem to be a reasonable compromise, but the WFCO manual says 20 amps is the maximum.

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Originally Posted by Ron in BC View Post
As others have mentioned, that seems a little odd.

My water heater circuit is a dedicated 15 amp breaker.

Ron
30 amps for the water heater would be odd - I think we've narrowed it down to circuit labelling which no longer corresponds to the actual wiring. The consensus seems to be 15 A to be switched for the water heater.

Ron, if you add that A/C later, unless they allow another breaker position, you'll need to replace the bottom 15 A breaker with a 15/20 dual breaker (which is readily available).
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Old 09-01-2016, 05:38 PM   #65
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Originally Posted by Brian B-P View Post
Yes, the result is indeterminate, but whichever breaker trips the result is a safe situation, so I don't know if it's a big issue... but it may be a reason to not allow a 30 amp branch circuit breaker. If that's the reason, 25 amps would seem to be a reasonable compromise, but the WFCO manual says 20 amps is the maximum.


30 amps for the water heater would be odd - I think we've narrowed it down to circuit labelling which no longer corresponds to the actual wiring. The consensus seems to be 15 A to be switched for the water heater.

Ron, if you add that A/C later, unless they allow another breaker position, you'll need to replace the bottom 15 A breaker with a 15/20 dual breaker (which is readily available).
Maybe some future owner might add a rooftop a/c and make that breaker change. But not me, I'm happy with my once in a while use $88 portable unit.

Going back to the OP's photo, it appears that the second breaker is indeed a 30 amp breaker and not just labelled as one. If this is the case and the cable going from it to the w/h is less than 10 ga. then it is over fused and the circuit breaker size should be reduced to match the cable size.

Ron
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Old 09-01-2016, 06:09 PM   #66
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Going back to the OP's photo, it appears that the second breaker is indeed a 30 amp breaker and not just labelled as one. If this is the case and the cable going from it to the w/h is less than 10 ga. then it is over fused and the circuit breaker size should be reduced to match the cable size.
Yes, but Cathy - knowing that Scott had an inverter retrofitted - realized that all of the handwritten labels shown in his photo are wrong (they describe the original configuration, not the post-inverter configuration), so that the 30 amp breaker at the bottom actually goes to the transfer switch (with suitable 10-gauge cable), not to the water heater.
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Old 09-01-2016, 07:07 PM   #67
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Well Ron's glad that Brian knew that Cathy knew that Scott's label was wrong.

Ron
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Old 09-01-2016, 07:22 PM   #68
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