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DREAM CATCHER OPERATING MANUAL
NW Explorations
Once running, the air conditioners’ “Mode” setting allows them to heat or cool the vessel, and the thermostats will cycle
them on as needed.
The air conditioning control panel has symbols. The red dot/white dot button turns the area on or off. The button with
the fan blades symbol turns the fan on/off. The red and green thermometers control the temperature. Your settings are
shown in the readout, and the led’s show the system’s status.
4M2: Furnace
Operating the Furnace
The boat is equipped with a Webasto Hot Water Heating
System. This is a very compact furnace that burns the
same Diesel fuel as the engines. The fuel comes from the
fuel manifold, thus from both tanks, about a pint each
hour when running. The furnace (or, when the boat is
underway, the port engine) heats water which is circulated
throughout the boat. Individual blowers, each with its own
“off-low-high” switch, then forces the air into each area of
the boat from small heat exchangers in each area.
The furnace is controlled by a master switch on the port
side of the lower helm cabinet, and by thermostats in each
area.
The master switch has three settings:
Off
The heating system is “all off”
System Heat
The Diesel Furnace will supply heat
if called for by any thermostat
Engine Heat
The port engine (if running) will
supply heat if called for by any
thermostat
Select the desired master switch setting and then set
the desired temperature on the thermostats.
When the thermostat calls for heat, and the switch is
in the
“System Heat” position, the first time the furnace runs after
the master switch
is turned on, it will take a few minutes while the furnace starts, and then brings the
circulating water to the needed temperature before the fans start heating the boat:
Be patient! (The furnace has a built-in computer controlling its functions.) The furnace
will then supply heat to the boat until the thermostat senses it is warm enough, then the
computer will shut off the fans while the furnace goes through a “cool-down” cycle. You
need not do anything but set a thermostat!
In the “Engine Heat” position, the heat will come on more quickly if the engines have been
running.
To control the balance of heat between the boat’s areas, if the thermostat settings are not
sufficient, you can use the fan switches in each area to adjust the heat flow to “low” or
“high”.
Do not leave the fan switches “off”, lest you have the furnace running with no way to distribute its heat!
Furnace system in engine room.
A furnace thermostat.
Furnace master switch.
A fan switch.