Grand Design Momentum, Owner'S Manual

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Mini-EMS (If So Equipped)
Your Momentum FW, if so equipped, has a 120-volt Mini-EMS
( Energy Management System ). This system is designed to mon-
itor the total AC current of the RV and help prevent tripping the
circuit breakers by momentarily shedding up to four loads (the
four loads and shed priority are listed below):
1. AC Zone 1 Main floor living room area
2. AC Zone 2 Front bedroom area
3. AC Zone 3 Garage area
4. Washer/dryer
The Mini-EMS is designed to help owners, who are used to 50-
amp service, deal with the common situation of campgrounds
where only 30-amp service is available. The system monitors the
current electrical draw for the entire RV including owner added
loads, it learns controlled appliance current draw, and it allows
two air conditioners to run on 30-amp service when other ap-
pliances are not in use. The I/O module has built-in 120-volt AC
sense circuitry so it knows when shore power is available (and
does not draw on battery power when dry camping).
Electrical Systems
The Mini-PCS, when turned ON, continuously monitors
the RV’s 120-volt AC power, and sheds and restores
power to the four controlled loads.