Dometic FreshJet Series 4, FreshJet Series 7 Roof Air Conditioner

Important Notes

Please read these instructions carefully and follow all instructions, guidelines, and warnings included in this product manual to ensure proper installation, use, and maintenance of the product at all times. These instructions MUST stay with this product.

By using the product, you confirm that you have read and understood all instructions, guidelines, and warnings and agree to abide by the terms and conditions set forth herein. You agree to use this product only for its intended purpose and application, in accordance with the instructions, guidelines, and warnings in this product manual, and in accordance with all applicable laws and regulations. Failure to read and follow the instructions and warnings may result in injury to yourself and others, or damage to your product or other property. This product manual, including instructions, guidelines, and warnings, and related documentation, may be subject to changes and updates. For up-to-date product information, please visit documents.dometic.com.

Explanation of Symbols

Safety Instructions

WARNING! Failure to obey these warnings could result in death or serious injury.

• Electrical appliances are not toys. The appliance is not to be used by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they are under supervision or have been given instruction.
• Children should be supervised to ensure that they do not play with the appliance.
• Cleaning shall not be performed by children without supervision.
• Any person involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an industry-accredited assessment authority, authorizing their competence to handle refrigerants safely in accordance with industry recognized assessment specifications.
• Maintenance shall only be performed as recommended by the equipment manufacturer. Maintenance and repair requiring the assistance of other qualified personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants.
• Repair of the appliance may only be carried out by qualified personnel familiar with the risks involved and relevant regulations. Inadequate repairs may cause serious hazards. For repair service, contact the service center in your country (see dometic.com/dealer).
• Always disconnect the power supply when working on the appliance.
• The appliance shall be stored in a room without continuously operating ignition sources such as open flames, an operating gas appliance, or an operating electric heater.
• Do not pierce or burn the appliance.
• Be aware that refrigerants may not contain an odor.
• Do not use the appliance near flammable fluids or in closed rooms.
• Ensure that no combustible objects are stored or installed near the air outlet. A distance of at least 50 cm must be kept.
• Keep the ventilation openings clear of obstruction.
• Do not damage the refrigerant circuit.
• Under no circumstances shall potential sources of ignition be used in the search for or detection of refrigerant leaks. A halide torch (or any other detector using a naked flame) shall not be used.
• The roof air conditioner shall be installed in a vehicle with a floor area larger than 4 m².

CAUTION! Failure to obey these cautions could result in minor or moderate injury.

• Do not reach into air outlets or insert any foreign objects in the appliance.
• Do not undo the upper cover of the appliance in the event of a fire. Use approved extinguishing agents instead. Do not use water to extinguish fires.
• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent, or similarly qualified personnel to avoid a hazard.
• In case the appliance contains an ionizer, consult your physician if you have a medical condition. The ionizer can produce ozone (O3) in small quantities. If you suffer from lung disease, asthma, heart disease, respiratory disease, respiratory problems, or have an ozone sensitivity, consult your physician to determine if the use of this device is safe for you.

NOTICE! Damage hazard

• Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
• The appliance shall be stored to prevent mechanical damage.
• Do not make any alterations or conversions to the appliance.
• Never drive through automatic car washes when the appliance is mounted.
• If faults occur in the refrigerant circuit, the appliance must be checked and repaired by the manufacturer, its service agent, or similarly qualified personnel to avoid a hazard.

Intended Use

The roof air conditioner is designed for installation on the roof of a caravan or recreational vehicle to provide cooling and heating. It is not suitable for trains, houses, apartments, construction machines, agricultural machines, or similar equipment.

This product is suitable only for the intended purpose and application in accordance with these instructions. This manual provides information necessary for proper installation and/or operation. Poor installation and/or improper operation or maintenance may result in unsatisfactory performance and possible failure.

The manufacturer accepts no liability for injury or damage to the product resulting from:

• Incorrect assembly or connection, including excess voltage.
• Incorrect maintenance or use of spare parts other than original spare parts provided by the manufacturer.
• Alterations to the product without express permission from the manufacturer.
• Use for purposes other than those described in this manual.

Dometic reserves the right to change product appearance and specifications.

Explanations of Symbols on the Appliance

Technical Limits and Conditions

The roof air conditioner is intended for vehicles with roofs of a thickness of 25 mm to 60 mm. It operates at ambient temperatures between -2 °C and 52 °C. The roof air conditioner is designed to be installed within ± 10° of the horizontal plane.

Technical Description

The roof air conditioner supplies the vehicle's interior with cool or warm air, which is without dust and dirt and can be dehumidified. It can lower the interior temperature depending on the vehicle type, ambient temperature, and its cooling capacity. Below an outer temperature of 16 °C, the roof air conditioner does not cool.

The roof air conditioner is operated with the following elements:

• Control panel
• Remote control (on some models)

Models:

• FreshJet FJX4333EEH
• FreshJet FJX7337IHP
• FreshJet FJX7457IHP

List of Models

The models are differentiated between fixed-speed and inverter models:

• Freshjet 4-Series: Fixed-speed
• Freshjet 7-Series: Inverter

● Feature is available

○ Feature is upgradable

Control Panel

Remote Control

Control and display elements:

• Display: Shows Time, Selected room temperature (°C), Actual room temperature, Air conditioning mode, Fan speed, Symbols for active additional functions, Battery status.
• : Switches the roof air conditioner on or to stand-by mode.
• +: Increases the currently displayed value.
• -: Reduces the currently displayed value.
• : Selects the fan speed.
• MODE: Selects the air conditioning mode.
• : Activates the sleep function.
• SET: Confirms and saves settings.
• : Sets the timer and the clock.
• : Switches the ambient lights in the air distribution box on or off.
• : Displays the current interior temperature.
• : Displays the set temperature.
• : Activates the 'I feel' function.
• : Switches the ambient lights in the roof top unit on or off.
• ❗: Indicates that the remote control's batteries are empty.
• : Displays that the remote control is transmitting values to the roof air conditioner.

Air Conditioning Modes

Additional Functions

Before Initial Use

Inspection before starting up

Before switching on the roof air conditioner, observe the following:

1. Check that the supply voltage and frequency correspond to the values specified in Technical data on page 23.
2. Ensure that air intake openings and air nozzles are free. Ventilation grilles must be kept clear for maximum capacity.

Prepare the remote control

1. Insert the batteries (see Replacing the remote control batteries on page 15).
2. Set the time (see Setting the current time on page 13).

Operation

Hints for improved use

The following hints optimize performance:

• Improve vehicle heat insulation by sealing gaps and using reflective blinds or curtains.
• Select appropriate temperature and fan speed.
• Align air nozzles sensibly.
• Ensure air nozzles and 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 in Ventilation mode with windows open for a while before switching to Cooling mode.
• Avoid opening doors and windows as much as possible in Cooling mode.

Basic notes on operation

The Dometic FreshJet FJX4333EEH/FJX7337IHP/FJX7457IHP roof air conditioner has two operating modes:

Fixed-speed and inverter models

The information in this chapter applies to both fixed-speed and inverter models.

Using the remote control

Consider the following when using the remote control:

• Point the remote control at the IR receiver of the control panel.
• Settings and values are transmitted when a button is pressed.
• The roof air conditioner confirms data receipt with a beep.
• Values increase/decrease faster when holding the + or – button.
• In standby mode, the remote control display is inactive. It can be switched on independently. To switch only the remote control to standby, press the button without pointing at the control panel's IR receiver.

Switching the roof air conditioner on and to standby

Note: When switched on, the unit operates with values set before standby. It can only be switched off by cutting the power supply.

• Press the button on the remote control or the button on the control panel to switch the unit on or to standby.

Selecting the air conditioning mode

• Select the desired mode using the MODE button. The unit confirms receipt with a beep and switches to the selected mode.

Selecting the fan speed manually

In all modes except Automatic (A) and Dehumidifying (?), fan speed can be selected manually.

• Press the button on the remote control or the button on the control panel to select the desired fan speed. The unit confirms receipt with a beep.

Setting the temperature

In Automatic (A), Cooling (☀️), Heating (❄️), and Dehumidifying (?) modes, you can specify a temperature between 16 °C and 31 °C.

• Use the + or – button on the remote control to set the desired temperature. The unit confirms receipt with a high note.

Setting the current time

The remote control needs the current time to program the timer. The time is shown on the remote control display.

1. Press and hold the button to enter time setting mode. The time flashes on the display.
2. Use the + or – button to set the current time. Holding the button for over 2 seconds increases or decreases the time quicker.
3. Press the SET button to confirm.

Setting the timer

The timer function allows setting a specific time period for air conditioning. You can specify the switch-on time, switch-to-standby time, or both.

The timer is set via remote control.

Note: The remote control returns to its initial mode if no button is pressed for 15 seconds while programming the timer.

Set the switch-on timer:

1. Select the desired air conditioning mode and all required values (e.g., temperature).
2. If necessary, switch the roof air conditioner to standby. The switch-on timer can only be set when the unit is in standby.
3. Press the button once. The 38:88 symbol flashes on the remote control display.
4. Use the + or – button to set the switch-on time.
5. Press the SET button. The switch-on timer is set. The unit will switch on with the selected mode at the specified time.

Set the switch-to-standby timer:

1. If necessary, switch the roof air conditioner on. The switch-to-standby timer can only be set when the unit is switched on.
2. Press the button twice. The 38:88 symbol flashes on the remote control display.
3. Use the + or – button to set the switch-to-standby time.
4. Press the SET button. The switch-to-standby timer is set. The unit will switch to standby at the specified time.

Set the switch-on and switch-to-standby timers:

1. Select the desired air conditioning mode and all required values.
2. Press the button three times. The 88:88 88:88 symbol is shown, and the ON symbol flashes.
3. Use the + or – button to set the switch-on time.
4. Press the button. The OFF symbol flashes.
5. Use the + or – button to set the switch-to-standby time.
6. Press the SET button. The switch-on and switch-to-standby times are set. The unit will be switched on for the specified time period.

• To cancel a preset timer, press the button once. The 28:88 88:88 symbols disappear.

Setting the sleep function

The sleep function is available in Cooling (☀️) or Heating (❄️) modes. It limits fan speed to a lower level for quieter operation. For inverter models, it also limits compressor speed.

• To activate: Set the required temperature. Press the button on the remote control or the button on the control panel. The symbol appears.
• To deactivate: Press the or MODE button on the remote control, or the button on the control panel. The symbol disappears.

Activating the I feel function

When active, the remote control measures room temperature and transmits it to the air conditioner every 10 minutes, adapting the target value. The 'I feel' function is active when the temperature range is between +18 °C and +29 °C.

The remote control should not be kept in a part of the room considerably warmer or colder than the average room temperature (e.g., in the sun or in front of the air conditioner).

• Press the button. The symbol appears.
• Position the remote control to point at the IR receiver on the control panel for values to be transmitted.

Operating the ambient lights

WARNING! Risk of Injury By law, it is forbidden to use external lights when driving the vehicle.

The button on the remote control is active even when the remote control is switched off.

For models with ADB light:

• To switch internal lights on or off: Press the button on the remote control or control panel. The symbol flashes once when internal lights are switched on.
• To dim internal lights: Press and hold the button (3 s). Press the + button to dim from 50% to 100%. Press the button on the control panel to cycle brightness between 50% and 100%. Release when desired brightness is reached.

For inverter models:

• To switch external lights on or off: Press the button on the control panel.

Replacing the remote control batteries

Note: The remote control display may remain bright even with low batteries. Replace batteries when indicated.

• Replace batteries as shown in the diagram. The display shows all symbols for 5 seconds.

Protect the environment! Do not dispose of batteries with household waste. Return defective or used batteries to your retailer or dispose of them at collection points.

Regulating air supply within the vehicle

The air flow can be adjusted along the ceiling or towards the floor by turning the slats in the air nozzles independently.

Cleaning the Roof Air Conditioner

NOTICE! Damage hazard

• Do not use means to accelerate defrosting or cleaning other than those recommended by the manufacturer.
• Do not clean with a high-pressure cleaner; water exposure can damage the unit.
• Do not use sharp or hard objects or cleaning agents, as they may damage the unit.
• Do not use petrol, diesel, or solvents.

1. Regularly remove leaves and other dirt from air intake and ventilation grilles. Do not damage the grilles.
2. Occasionally clean the housings of the roof top unit and air distribution box with a damp cloth and mild cleaning agent.
3. For models with remote control: Occasionally clean the remote control with a slightly damp cloth. Clean the display with a glasses cleaning cloth.
4. For models with air distribution box: Occasionally clean the air distribution box display with a mild solution of warm soapy water. The display screen is acrylic and can be damaged by common household chemicals.

Maintenance

WARNING! Risk of Injury Any maintenance work beyond the described subjects may only be carried out by qualified personnel familiar with the risks of handling refrigerants and air conditioning systems, and relevant regulations.

Troubleshooting

Disposal

Place packaging material in appropriate recycling bins. Consult a local recycling center or specialist dealer for disposal details according to applicable regulations.

Protect the environment! Do not dispose of batteries with general household waste. Return defective or used batteries to your retailer or dispose of them at collection points.

Warranty

If the product malfunctions, contact your retailer or Dometic's branch in your country (see dometic.com/dealer). The warranty is 1 year.

For repair and warranty processing, include:

• A copy of the receipt with the purchase date.
• A reason for the claim or description of the fault.

Note: Self-repair or nonprofessional repair can have safety consequences and may void the warranty.

Australian Consumer Law: Goods come with guarantees that cannot be excluded. Entitled to replacement or refund for major failure, and compensation for reasonably foreseeable loss or damage. Entitled to have goods repaired or replaced if they fail to be of acceptable quality and the failure is not major.

New Zealand only: This warranty policy is subject to mandatory conditions and guarantees implied by the Consumer Guarantees Act 1993 (NZ).

Technical Data

FreshJet FJX4333EEH

Dimensions (L x W x H): 752 x 579 x 225-260 mm

Weight (roof top unit with air distribution box): < 34 kg

FreshJet FJX7337IHP

Dimensions (L x W x H): 1090 x 778 x 242-250 mm

Weight (roof top unit with air distribution box): < 41 kg

FreshJet FJX7457IHP

Dimensions (L x W x H): 1090 x 778 x 283-250 mm

Weight (roof top unit with air distribution box): < 43 kg

Contains fluorinated greenhouse gases. Hermetically sealed equipment.