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ELECTRICAL
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WaterHtr Shed: If Midi-PCS has sensed an over-
current condition, for example the Microwave
has been turned on, it will shed power to the first
appliance in the list, and display as such. As the user
turns on more appliances, such as a hair dryer, the
Midi-PCS will continue down the list shedding power
to the next appliance on the list. When the user turns
off the hair dryer, Midi-PCS will sense available power
and begin to restore appliances in reverse order (First
off, will be last back on.)
While on any of the Load Status screens, if the Select
button is pressed, an overall status of all the Loads can be
seen. There are three options:
1. Waiting Amps > Max means that turning the next
appliance back on would cause the Amps that the RV
is drawing to go over the Max allowed for the Service
Type. (30A = 30 amps Max)
2. Waiting 120 Secs: #1 condition above does not exist,
turning on the next appliance would be OK. However,
if any appliance is shed, then a minimum of 2 minutes
or 120 secs must pass before power is restored. This
is required for things like A/C compressor pressure to
decrease. The user can then watch a countdown, in
seconds, of when power will be restored. When the
countdown concludes, the screen below will appear.
3. No Loads Shed: This lets the user know that all Midi-
PCS controlled appliances are running.
Diagnostics
While on any of the Load Status Screens, pressing and
holding Select button provides Learned Load current.
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WaterHtr Shed = 10A: Midi-PCS displays Learned
current for a specific appliance. This is the current
the appliance was drawing when Midi-PCS shed its
power. If the appliance happened to be off, Midi-
PCS will learn and display Shed= 0A. This display of
current is not live and only a picture in time, at the
instant the appliance was shed. Midi-PCS uses this
value to determine when it is safe to restore power to
this appliance. Displaying Amps>Max above means
restoring the Learned current would put the RV over
the Service Type Max limit, and Midi-PCS is Waiting
for another appliance to be turned off.
Source(s): Precision Circuits Midi-Power Control System Owner’s Manual
(RevB)
Product(s): This source is associated with more than one product. Refer
to Newgle for more information about the product(s) offered for your
coach’s model year.
Amps Display
After scrolling thru each Load Status the next press of the
Scroll button will display RV current.
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Amps = 25A: Midi-PCS displays total RV 120VAC amps
or current being drawn by the entire RV, including
Midi-PCS controlled appliances, other RV appliances,
and appliances plugged into any outlet of the RV. This
current is live, constantly monitored and updated. If
RV current goes above the max limit for the Service
type, it can be seen here for about a second before
Midi-PCS begins to shed appliances.
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The good news is the user needs very little
interaction with the Midi-PCS. It sheds loads and
restores power all by itself. The user no longer has
to do manual energy management of the RV, but
can relax and let the Midi-PCS do its job. The only
time the user needs to perform a function with the
Midi-PCS is after plugging the RV into a 20A or 15A
receptacle, since the Midi-PCS can not sense these
two Service types automatically.
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WaterHtr Not Shed: Not Shed, is displayed when
power to the appliance is available, and no recent
Learned current is available to display. Viewing the
current on the Amp Display below when is goes
above the Service Type Max and then again when
a Load is Shed, is how the Learned current above is
calculated.
Summary of Contents for Bay Star 2022
Page 1: ...SM 2022...
