4F3: AC Breaker Source Selection
It is up to the operator to select the source of
AC power for the boat; this is done with the
Generator - Shore Power #1 - Shore Power #2
Switch and the main power breakers.
Normal Shore Power Operation:
For normal operation when connected to
shore power with a 50-amp cable, you will have:
•
the switch set to Shore Power #1 or #2 depending on whether the connection
is fore or aft;
•
the “Daily 120v” and “Air Cond.” breakers “on”;
•
the white “Inverter” breaker “on”;
•
all required AC equipment breakers can be “on”.
In this way, shore power is connected to both the air-conditioning and normal AC
circuits.
Note: In photo, inverter switch was “Off”. It should have been “On”!
Limited Shore Power Operation:
If there is limited shore power, such as when only a 30-amp connection is available, you
will have to reduce usage. Do this by leaving the air conditioning breaker off. (If you need air
conditioning, you will have to run the generator.) You will have:
•
the switch set to Shore Power #1 or #2 depending on whether the connection
is fore or aft;
•
the “Daily 120v” “on” and the “Air Cond.” breaker “off”;
•
the white “Inverter” breaker “on”;
•
all required AC equipment breakers can be “on” except the Air Conditioning
and Pump breaker.
Generator Operation:
The boat’s generator can run everything on the vessel!
If when running, there is no 110-volt power at the panel, check the
main circuit breaker on the generator (see section 4F6).
Whenever away from the dock
, you should have:
•
the switch set to “Gen”;
•
the “Daily 120v” and “Air Cond.” breakers “on”;
•
the white “Inverter” breaker “on”;
•
all required AC equipment breakers can be “on”.
Inverter Power Operation:
If the inverter is the source of power such as when you are at sea underway or
anchored and the generator is not running, it reduces the items that can run to avoid running
down the batteries or overloading the inverter. Only the items with an asterisk (“*”) on the AC
panel on page 4.9 will be operative.
Section 4F: Electrical Systems, AC 4.10