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tmw188 · 01-20-2016, 05:01 AM

In the transfer switch Bay Area is that 30/50amp switch. Should that be in the off (30a) position if I'm only using a step down plug going to a 20amp receptacle in the garage just to keep the batteries up or does it matter? I thought it would be best it's on the single line side?

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wa8yxm · 01-20-2016, 08:11 AM

Have never seen such a switch.. However can imagine two ways it would be used.

If just using the 15 amp line for battery maintenance it will not matter.

tmw188 · 01-20-2016, 08:43 AM

Quote:

Originally Posted by wa8yxm

Have never seen such a switch.. However can imagine two ways it would be used.

If just using the 15 amp line for battery maintenance it will not matter.

Only on the Nationals w/basement heat pumps

Timon · 01-20-2016, 09:06 AM

Quote:

Originally Posted by tmw188

In the transfer switch Bay Area is that 30/50amp switch. Should that be in the off (30a) position if I'm only using a step down plug going to a 20amp receptacle in the garage just to keep the batteries up or does it matter? I thought it would be best it's on the single line side?

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Quote:

Originally Posted by tmw188

Only on the Nationals w/basement heat pumps

It's also on many Winnebagos build in the 80's and 90's that have dual ACs.

We're looking at an 1992 Elante' which doesn't have it since the coach was designed for 30A It has a basement AC and the second compression only comes on only when the generator is running. However the 1993 and 1994 do have the switch since they had a 50A service.

What the switch does switch, and yours likely does the same, is to feeds power to the second AC when connected to 50A service. If you're connected to 20 or 30A service and turn on the switch you can overload and cause the breaker to trip.

If we end up getting the Elante' I'm going to convert it over to 50A service, not really that hard to do, plus add a circuit which will do this automatically. Not something I'd suggest someone do unless they completely understand these things.

wa8yxm · 01-20-2016, 05:15 PM

Quote:

Originally Posted by tmw188

Only on the Nationals w/basement heat pumps

Thank you, now I know what it is..

And to the O/P. As long as you are not uusing the Basement heat pump/Air Conditioner then the switch position will not matter. and on 15 amps you can not use the basement heat pump/air conditioner anyway, it will trip the 15 amp breaker.

tmw188 · 01-20-2016, 06:11 PM

Quote:

Originally Posted by wa8yxm

Thank you, now I know what it is..

And to the O/P. As long as you are not uusing the Basement heat pump/Air Conditioner then the switch position will not matter. and on 15 amps you can not use the basement heat pump/air conditioner anyway, it will trip the 15 amp breaker.

I understand the electric and loads and breakers not handling the loads I'm not trying to run any big loads. Just asking from the opinion of if it is on the on side of that switch which is the fifty amp side would it be better to have it on the 30amp side while using a step down adapter plug into a 20a/125 receptacle so it's not being split at the switch sharing that 20a/125v run. Did I do a better job explaining myself. Well anyway that's what I did I turned it to the off position 30amp position just to have the battery charger on. It may not make a difference but thought it would be a simple question.

tom77hmstd · 01-21-2016, 08:19 AM

That switch ONLY controls the a/c compressors, meaning that position makes no difference to the rest of the coach. The 50 amp runs both compressors in the a/c, 30 amp runs 1 compressor.

tmw188 · 01-21-2016, 11:25 AM

Quote:

Originally Posted by tom77hmstd

That switch ONLY controls the a/c compressors, meaning that position makes no difference to the rest of the coach. The 50 amp runs both compressors in the a/c, 30 amp runs 1 compressor.

Now that sounds like the answer. Referenced in the manual but didn't know if it related to anything else. Thanks

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jpm777 · 01-21-2016, 12:27 PM

The basement air has a two-step compressor. The first kicks in and then the second will kick in if the cooling demand is high, both compressors running needs that 50a service. Switching it to the 30a will prevent only the second compressor from kicking in which can overload the 30a service and trip the breaker for the 30a service from the RV park.

Timon · 01-21-2016, 06:59 PM

Quote:

Originally Posted by jpm777

The basement air has a two-step compressor. The first kicks in and then the second will kick in if the cooling demand is high, both compressors running needs that 50a service. Switching it to the 30a will prevent only the second compressor from kicking in which can overload the 30a service and trip the breaker for the 30a service from the RV park.

Its not only rigs with basement air. They can do the same with two rooftop units as well.

Rick 2005 Dolphin 5376 · 01-26-2016, 03:23 PM

In the park we are at, we got lucky. Our slip is 30A but I've left the switch to the 50A position and found that the 30A breaker on the pole will not pop, even when running both A/C pumps. Not so at every other place we've been

keninvic · 07-08-2016, 12:16 PM

[QUOTE=tmw188;2907455]In the transfer switch Bay Area is that 30/50amp switch. Should that be in the off (30a) position if I'm only using a step down plug going to a 20amp receptacle in the garage just to keep the batteries up or does it matter? I thought it would be best it's on the single line side?

Just flip it down when you don't have enough power to run the 2nd heat pump. So if you are not using air conditioning, leave it up.

tmw188 · 07-08-2016, 07:52 PM

[QUOTE=keninvic;3151298]

Quote:

Originally Posted by tmw188

In the transfer switch Bay Area is that 30/50amp switch. Should that be in the off (30a) position if I'm only using a step down plug going to a 20amp receptacle in the garage just to keep the batteries up or does it matter? I thought it would be best it's on the single line side?

Just flip it down when you don't have enough power to run the 2nd heat pump. So if you are not using air conditioning, leave it up.

It really isn't going to matter if your not turning on you AC. If you think you are I would put it on the 30a not sure if the 20a plug in the garage would hold especially on start up. I use to do the same thing but never turned on the ac unit until I ran a 50a plug.

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m.elliott63 · 07-13-2016, 11:05 AM

Quote:

Originally Posted by tom77hmstd

That switch ONLY controls the a/c compressors, meaning that position makes no difference to the rest of the coach. The 50 amp runs both compressors in the a/c, 30 amp runs 1 compressor.

That's strange to me that the trigger to step up the service from 30a to 50a would be (2) a/c's. Our 98 Sea Breeze is a 30amp model and has (2) roof mounted a/c units. I know that when they are both running it's pulling like 26-28 amps out of 30 available.