Dometic FreshJet 3 Series Installation And Operation Manual page 23

Rooftop Air Conditioner (Air Distribution Box, Electronic Controls)
The fan speed will be set to Turbo by default,
regardless of fan mode selection.
2. To change the fan speed or set the temperature, you
must change from Turbo mode to another mode.
3. To exit, press and release the Turbo icon or any other
selection icon. Operation returns to Cool mode
when exiting Turbo mode.
In Turbo mode, the temperature set point will be
set to the lowest setting 55 °F (13 °C) regardless of
the setpoint selection. The compressor operates
continuously to attempt to reach the lowest set point.
10 .3 .10 Selecting Ventilation mode
The Ventilation mode uses only the fan to maintain air
circulation or a desired temperature within the vehicle.
1. Press and release the Ventilation icon.
All unselected icons illuminate at 50% brightness,
except the Ventilation Speed icon.
2. Press the Fan Speed icon at any time to increase or
decrease the fan speed. The LED display shows a
number to identify the fan speed: (1) Low; (2) High;
(3) Turbo, or (AU) Auto.
If you press another icon (Cool, Heat Pump, etc.)
during the selection of the fan speed, the fan speed
chosen will be the last accepted fan speed before the
other icon was pressed.
In the Auto fan speed setting, the fan cycles on and
off. The fan speed changes automatically based on the
temperature differential between the room temperature
and the setpoint temperature. The fan operates for a
minimum of one minute in any speed.
In the Auto fan speed setting of Ventilation
I
mode, the fan speeds up or slows down to help
maintain the desired setpoint temperature. For
Auto fan settings in other modes, the fan works
in conjunction with the heating or cooling system
when speeding up or slowing down to help
maintain the desired setpoint temperature.
• The fan operates at Turbo speed when the room
temperature is above the setpoint temperature by
more than 8 °F ±0.5 °F (5 °C ±0.3 °C).
EN
• The fan operates at High speed when the room
temperature is above the setpoint temperature by
5 °F to 7 °F ±0.5 °F (3 °C to 4 °C ±0.3 °C).
• The fan operates at Low speed when the room
temperature is above the setpoint temperature by
less than 4 °F ±0.5 °F (2 °C ±0.3 °C).
10 .3 .11 Setting the special modes
Press and release the Mode icon to cycle through to the
Sleep, Dry, or Eco mode selections.
Sleep mode
The Sleep mode provides a comfortable sleeping
environment, minimizing compressor cycling and
reducing the LED brightness level.
1. Press and release the Mode icon until the Sleep (SL)
mode displays.
The Mode icon illuminates steadily at 100%
brightness.
The LED display shows SL for five seconds and then
alternate between SL and the temperature display
every five seconds.
All unselected icons illuminate at 50% brightness.
After five seconds, all the icons illuminate at 50%
brightness.
2. Press the ( + / ) icon to set the temperature.
–
The ( + / ) icon illuminates at 100% brightness
–
during the selection, then remain at 50% brightness
after the button is released.
3. To change the fan speed, select a mode other than
the Sleep mode. The default fan speed is set to Low,
regardless of fan speed selection.
When the Sleep mode is active:
• The control system reduces the fan speed and
gradually raises the set point to minimize compressor
cycling and increase comfort.
• In the first hour, the setpoint automatically increases
by 2 °F (1 °C). Conversely, in Heat Pump mode, the
setpoint decreases by 2 °F (1 °C).
Operation
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