NW Explorations
HELE MAI OPERATING MANUAL
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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 28 will be operative.
