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NW Explorations
HELE MAI OPERATING MANUAL
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To control the balance of heat between the boat’s areas
(particularly the head compartments) use the individual fan
control switches by each fan, or open, close, or re-direct the
deflectors on the outlets.
As you see, this furnace system is flexible! As long as the
batteries can support the modest DC requirement of the fans
and furnace, you will have plenty of quiet heat. In fact, this
use of the house batteries’ energy for air circulation is a good
reason to limit use of the furnace to times when passengers
are awake, unless the boat has shore power available.
Furnace Blower Controls
“Fan Heater” controls are located throughout the boat in areas where there are no thermostats. These will supply heat
to that area when the switch is on “Low” or “High” and the furnace is running.
4M3: Furnace Exhaust Warning
Note the location of the exhaust aft on the starboard side of the boat! Care
should be taken not to black this outlet with fenders or while rafting due to the
very high temperature of the exhaust gases from the furnace.
4M4: Furnace Problems
If battery voltage gets too low the furnace will shut down to avoid running the
batteries dead. After the batteries are fully charged, the furnace then should
operate.
4M5: Furnace Thermostats
See illustration to right. The buttons control the temperature settings.
4N:Galley & Appliances
Hele Mai is fitted with a number of appliances for your convenience. Most of these
(like the microwave) are easy to operate, “just like a home appliance”. But some marine
units have some features that are slightly different than home models.
4N1: Garbage Disposal
A garbage disposal unit is fitted in the left galley sink, with a switch to the right of
the faucet. Use it when discharge rules permit, not in harbors, and only with
compostable garbage!
4N1: Icemaker
The Icemaker, located under the sink in the aft cockpit, is virtually self-operating. It is
run by AC power from shore, the genset, or the inverter.
Note that if the icemaker is left on for considerable time without the genset or
engines running, and the door is opened frequently, it can be a considerable battery
load. Monitor the batteries!
Conversely, if the icemaker or refrigerator are left off, you should remove melted ice
The thermostat in the pilothouse.
Fan switches are throughout
the boat.
The furnace exhaust is starboard
just forward ofthe swim step.
Thermostats like this one control
the temperature in each area.
Icemaker in the cockpit cabinet.