Dometic FreshJet Series 4, FreshJet Series 7EN
8 Before initial use
Inspection before starting up
Before switching on the roof air conditioner, observe the following:
1. Check whether the supply voltage and frequency correspond to the values specified in Technical data on
page23.
2. Ensure that both the air intake openings and the air nozzles are free. All ventilation grilles must always be kept
free to ensure that the roof air conditioner is able to operate at maximum capacity.
Prepare the remote control
3. Insert the batteries (Replacing the remote control batteries on page15).
Set the time
4. Set the current time (Setting the current time on page13).
9 Operation
9.1 Hints for improved use
The following hints will optimize the performance of your roof air conditioner:
• Improve the heat insulation of your vehicle by sealing gaps and hanging reflective blinds or curtains on your
windows.
• Select an appropriate temperature and fan speed.
• Align the air nozzles sensibly.
• Ensure that the air nozzles and air intake openings are not covered by cloths, paper, or other objects.
• If the vehicle has been subjected to direct sunlight for a long time: Operate the roof air conditioner in the Ven-
tilation ( ) mode with the windows open for a while before switching on the Cooling ( ) mode.
• Avoid opening doors and windows for as long as possible in the Cooling ( ) mode.
9.2 Basic notes on operation
The FreshJet FJX4333EEH/FJX7333IHP/FJX7337IHP/FJX7457IHP roof air conditioner has two operating modes:
Operating mode Description
Standby
The roof air conditioner is ready for operation and can be switched on with the remote control.
The ambient lights are available. The remote control is also in standby, but you can switch the
remote control on independently from the roof air conditioner.
On The roof air conditioner is conditioning the air in the interior.
9.3 Fixed-speed and inverter models
The given information in this chapter applies to fixed-speed and inverter models.
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