ENERGY MANAGEMENT
The ENERGY MANAGEMENT SYSTEM controls 110 volt operated circuits to
help keep the total 110 volt current draw to less than 30 Amps. These circuits
may be any type load, but are typically heavier loads, those whose use can be
“postponed” until a time when current is available for their use.
Circuit Protection
Circuit protection for ALL the 110 VAC loads is offered by standard, resetable
circuit breakers, provided by Airstream. There are four positions available for
circuit breakers. These may be single or dual units. Airstream uses both single
and dual breakers as needed according to the options ordered on a unit. One
of these breakers (MAIN) is a 30 Amp unit that acts as the Main breaker for
the entire system. The 110 volt power is brought into the box from either a
shoreline outlet, generator, or the inverter can be used to feed circuit 4 only.
The line side of this cable is fed through the magnetically coupled current
transformer to the Main breaker. This breaker back-feeds power into the
circuit breaker bus bar to feed power to the branch breakers. All the 120-volt
loads in the RV are fed from the branch breakers.
The 120-volt Distribution Panel on the front of the EMS contains the main
breaker and the branch circuit breakers for your RV.
The 110 volt circuits may be turned “on” my putting their breaker switch up
to the on position or “off” by flipping the switch down to the off position. If a
circuit is over loaded or an open (short) circuit occurs, a branch breaker will
“kick” out. To reactivate the circuit, try to reset the breaker switch. To reset the
tripped GFI breaker push the handle down slightly to off then lift up to on. If the
breaker kicks out again, a qualified electrical service technician should trouble
shoot the circuit.
Each panel is labeled with the components powered by individual circuits.
110 Volt Breaker Panel
30 Amp, Main
Circuit 1. 20 Amp, roof air conditioner (option)
Circuit 2. 20 Amp , water heater
30
20
20
20
20
12
3
4 5
15
20
GFI
6
Main