Community Forums

Sky_Boss · 07-04-2018, 05:58 PM

The PCS isn't showing amperage on the items in the attachment. However, it does properly show total amps along with amps to L1 and L2.

I believe that early on when we were inspecting the coach for purchase that A/C Middle did show amps drawn when in use. I've downloaded the installation manual and user's guide for clues but no luck.

As an exercise I shut everything down to where only the charger was drawing current. Then one by one I started each A/C, the dryer, microwave and coffee maker. This was to also determine what leg everything was on in case there was a need to manage usage. As I added devices the total amps along with amps on L1 & L2 all were what I expected.

BTW...There is no difference in the issue whether I'm on generator or shore power.

Any experience/thoughts?

Sky_Boss · 07-04-2018, 06:15 PM

FWIW, I decided to pull the display to see how it is connected. I found it used a phone line to get its data. Now, where does that go to? I don't have any drawings or information regarding it that I can find.

Winepress · 07-04-2018, 06:17 PM

Those are your load shed indicators. If you’re on 50amp, probably won’t see any shedding. 30amp, different story.

DrPhil · 07-04-2018, 06:21 PM

The zeros would be replaced with an amperage reading at the time of shedding of that specific item. Also I believe that it is shown in priority order. Zero indicates that no load has recently been shed.

Sky_Boss · 07-04-2018, 07:43 PM

OK...

You made some sense and I looked harder and found a USERS MANUAL on the Precision Circuits site.

So, now I think I have a better feel. When I did see an amperage on A/C MIDDLE I was on generator power and really putting it through its paces. I can't totally explain why it cleared out. Perhaps the system remembers shedding values based on power source? (A TOTAL WILD GUESS!)

What I have learned is:

1. Of course, ON means on and OFF means off. DUH! LOL
2. The amperage reading under LOAD STATUS will only display a value other that "0A" if that particular device had been shed by the system in the past.
3. When there is a a value other than "0A" that is the current it was using at the time of shedding.
4. The PCS uses those values for future reference to determine if there is enough amperage available to turn it back on.

THANKS!

Lv2Roam2 · 07-04-2018, 07:54 PM

We have a similar system on our coach - on 30 amp the values all show - on 50 amp they don't ...

Sky_Boss · 07-04-2018, 08:00 PM

Quote:

Originally Posted by Lv2Roam2

We have a similar system on our coach - on 30 amp the values all show - on 50 amp they don't ...

I'm wondering if the SHED LOAD values are remembered based on power supply. Your response seems to indicate it might be that way.

Next time I go on generator I will see if the A/C REAR shows any value. At least I think I saw something on that before when we were on generator. Otherwise, there may be some reason it removes a previous shed value but I'm only guessing about that.

10 fan · 07-05-2018, 06:02 AM

The first 3 days my water heater 1, 2 showed 11a and 12a , ac showed 0.
I asked at NT and they said it shows shedding only and could not explain
the amp draw for water heater. Sense the 4th day in the coach it shows 0.