Operating instructions

A furnace thermostat.
4M1: Air Conditioning Operation
The boat is equipped with an electric Cruisair Air Conditioning
and Heating System including four compressors. Its outlets are located
throughout the boat controlled by a thermostats throughout the boat.
Breakers in the AC Breaker Panel at the lower helm must be on
for operation of the system.
The “Aircon Pump” breaker must be on for any air conditioning to be used!
You must have either shorepower connected to 50-amp service,
or the generator must be running, and:
(1) The “Aircon Pump” breaker on;
(2) The breakers for the compressors used are also “on”;
(3) Operate the main control panels as desired [1 each in the
salon forward and aft, 1 in the Master S/R, and 1 in the forward
S/R];
(4) Set the relevant thermostats.
Be careful if using a shore power connection not to overload it!
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.
This panel is the main control
station for the A/C system.
Air Conditioning Thermostat
(manufacturer’s photo)
Furnace system in engine room.
Section 4M: Furnace & Air Conditioning 4.30