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Wallas Diesel-Fired Heater
The WALLAS DIESEL-FIRED FORCED-AIR FURNACE controller is located on the starboard aft wall of
the settee and provides heat in the same way as a household furnace. Turn on the toggle switch on the
controller to the “heat” position. Set the THERMOSTAT to the desired temperature (1-6, with 6 being the
hottest).
Check the furnace EXHAUST PORT located on the starboard side on the beam for any obstruction such as
fenders or lines. Do not block this opening when operating the furnace. Heat from the exhaust will damage
fiberglass and melt rubber. Once it is on, allow it to run for at least 15 minutes before turning it off. Turn
‘off’ the furnace heater by turning the toggle switch to off.
Air Conditioning/Reverse Cycle Heat (Salon and Forward Stateroom)
The Reverse Cycle Air Conditioning heats as well as cools. ZUMA has two Reverse Cycle A/C units, one
for the salon and one for the forward stateroom. Turn the two AIR CONDITIONER circuit breaker switches
to the ON position. The two circuit breakers are located on the 120 AC Panel and are labeled Air
Conditioner (for the salon) and Air Conditioner #2 (for the forward stateroom).
There is one A/C controller for each A/C unit. The controller for the salon is located at the electrical control
panel on the aft wall of the settee and the controller for the forward stateroom is mounted below the TV.
Both controllers are identical and operate in the same fashion.
Press the POWER button on the controller to activate the A/C unit. The MODE button is used to select one
of 4 operating modes, AUTO, COOL, HEAT or MOISTURE CONTROL. For normal operations it is best to
leave the unit in AUTO. Fan speed can operate in either AUTO or MANUAL (1-6 speeds). Press the TEMP
SELECT button to view the inside (supply) air temperature, outside (return) air temperature or set point. The
appropriate LED will be lit indicating that temperature is being displayed.
Momentarily press the up button and the temperature set point will appear in the temperature display. The
set point increases one degree each time the UP arrow button is pressed and released.
