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Using air conditioning mode on heat pump:
NOTE: To use the heat pump air conditioning mode, the trailer must be connected to a 30A
circuit.
1. Turn the thermostat to the “HEAT PUMP” position by touching the power button on the
left (photo K-25).
2. Set the temperature using the 2 buttons on the right (up or down) by simply touching the
buttons.
3. Set the fan speed to “HI” or “LOW”, using the buttons on the right when the display is in
speed selection mode.
4. The compressor will stop and restart as needed, but the fan will remain on.
It is normal that on very hot and sunny days the air conditioning may not suffice in cooling
completely to the desired temperature. At night, however, it will always be very efficient, even
on the warmest nights.
Using heating mode on heat pump:
NOTE: To operate the heat pump in heating mode, the vehicle must be connected to a 30-amp
circuit.
1. Turn the thermostat to the “HEAT PUMP” position by touching the power button on the
left (photo K-25).
2. Set the temperature using the 2 buttons on the right (up or down) by simply touching the
buttons.
3. Set the fan speed to “HI” or “LOW”, using the buttons on the right when the display is in
speed selection mode.
4. The compressor will stop and restart as needed, but the fan will remain on.
NOTE: The heat pump in heating mode stops working at a temperature between -1 °C and +4 °C
(30 °F to 39 °F). In this case, use the TRUMA heater in electric or LPG mode, which is also
silent.
Air Conditioner for ALTO F2414 (Optional):
The ALTO F2414 can be fitted with an air conditioner without a heat pump, as an option. In this
case it is located on the roof at the rear and the controls are directly on the device inside the ALTO
(photo K-26). Use left button to select vent or cooling mode, and right button to select the desired
cooling level.