Dometic FreshJet Series 4 & 7 Air Conditioners

Operating Manual

Product Overview

This manual provides comprehensive information for the Dometic FreshJet Series 4 and Series 7 air conditioning units. These units are designed for climate control in recreational vehicles (RVs) and caravans.

The series includes the following models:

FreshJet FJX4333EEH
FreshJet FJX7333IHP
FreshJet FJX7337IHP
FreshJet FJX7457IHP

Key features include efficient cooling, quiet operation, and user-friendly controls.

Installation

Proper installation is crucial for optimal performance and safety. Please follow these guidelines carefully.

Mounting Requirements

Roof Cut-out: A standard roof cut-out of 50 cm x 50 cm is required.

Clearances: Maintain a minimum clearance of 25 mm on the sides and 60 mm at the rear of the unit. Ensure a minimum of 4 meters clearance from obstructions above the unit.

Diagram Description: A diagram illustrates the recommended installation location on a vehicle roof, showing the 50 cm x 50 cm roof cut-out and the required clearances.

Electrical Connections

Connect the unit to the vehicle's power supply according to the provided wiring diagrams. Ensure the power source meets the voltage and frequency requirements (typically 220 V - 240 V / 50 Hz or 60 Hz).

Diagram Description: A wiring diagram shows the connections between the air conditioner unit, the vehicle's power supply, and the control panel/remote. It details power input, control signals, and communication lines.

Air Distribution Box (ADB) Installation

Install the Air Distribution Box (ADB) inside the vehicle cabin. This component distributes the conditioned air. Ensure proper sealing and connection to the main unit.

Diagram Description: A diagram shows the Air Distribution Box (ADB) with its components and connection points, including air vents for air distribution.

Operation

The Dometic FreshJet units can be operated using the control panel on the unit or via a remote control.

Control Panel and Remote

The control panel and remote feature intuitive buttons and icons:

Power: ▶️ [Power On/Off]
Mode: ❄️ [Cool], ☀️ [Heat], ? [Fan], ? [Sleep], ? [Auto]
Fan Speed: ?⬆️ [Increase Fan Speed], ?⬇️ [Decrease Fan Speed]
Temperature: ➕ [Increase Temp], ➖ [Decrease Temp]
Timer: ⏰ [Timer Setting]

Diagram Description: A diagram of the control panel interface displays these icons. Another diagram shows the remote control layout.

Operating Modes

Cooling [❄️]: Cools the air to the set temperature.
Heating [☀️]: Heats the air to the set temperature (if applicable).
Fan [?]: Circulates air without cooling or heating.
Auto [?]: Automatically selects cooling or fan mode to maintain the set temperature.
Sleep [?]: Operates at a lower fan speed and adjusts temperature for comfortable night-time use.

Temperature and Fan Speed Settings

Set the desired temperature within the range of 16°C to 31°C using the ➕ and ➖ buttons. Adjust the fan speed using the ?⬆️ and ?⬇️ buttons to select from low, medium, or high settings.

Diagram Description: Diagrams illustrate the process of adjusting fan speed and temperature settings using the control panel buttons.

Timer Function

The timer function allows you to schedule the unit's operation. Press the ⏰ button to access timer settings, select the desired duration, and confirm.

Diagram Description: A diagram shows the steps for setting the timer function.

Powering On/Off

Press the power button ▶️ to turn the unit on or off. Ensure the unit is properly installed and connected to power before operation.

Diagram Description: A diagram illustrates the ON/OFF function.

Maintenance

Regular maintenance ensures the longevity and efficiency of your air conditioner.

Filter Cleaning

The air filters should be cleaned regularly to maintain airflow and air quality. Recommended frequency is typically monthly, or more often in dusty conditions.

Locate and remove the air filter(s) from the unit.
Clean the filter(s) using water and a mild detergent.
Allow the filter(s) to dry completely before reinstallation.
Reinsert the clean, dry filter(s) into the unit.

Diagram Description: A diagram shows the process of removing and cleaning the air filter.

General Cleaning

Wipe the exterior of the unit and the control panel with a soft, damp cloth. Avoid using abrasive cleaners or solvents.

Troubleshooting

Refer to the table below for common issues and their solutions. If the problem persists, contact an authorized Dometic service center.

Problem	Possible Cause	Solution
Unit does not operate	No power supply; Fuse blown; Unit not switched on.	Check power connection; Check/replace fuse; Press power button [▶️].
Poor cooling or heating performance	Dirty air filters; Obstruction in air intake/outlet; Low refrigerant level (requires service).	Clean air filters; Remove obstructions; Contact authorized service center.
Unusual noise	Loose components; Fan obstruction; Unit not level.	Check for loose parts; Clear fan obstruction; Ensure unit is installed level.
Error code displayed	Internal system fault.	Refer to the Error Codes section for specific code meanings and actions.

Error Codes

The unit may display error codes to indicate specific faults. Consult the following table:

Code	Description	Action
P0	Communication error	Check LIN/CI bus connection.
P1	Indoor fan speed error	Check indoor fan motor.
P2	Outdoor fan speed error	Check outdoor fan motor.
P4	Compressor overcurrent	Check compressor and power supply.
P5	Compressor over-temperature	Ensure proper ventilation.
P6	Compressor phase loss	Check power supply phases.
P7	Compressor start failure	Check compressor and start components.
P9	EEPROM error	Reset unit or re-program EEPROM.
E0	Indoor temperature sensor fault	Check sensor connection and value.
E1	Outdoor temperature sensor fault	Check sensor connection and value.
E2	Evaporator temperature sensor fault	Check sensor connection and value.
E3	Condenser temperature sensor fault	Check sensor connection and value.
E7	Defrosting sensor fault	Check defrosting sensor.
E8	IPM module fault	Check IPM module.
E9	Communication error (LINBUS/CIBUS)	Check communication bus.
EA	Outdoor unit fan motor fault	Check outdoor fan motor.
EE	Indoor unit fan motor fault	Check indoor fan motor.
EL	Compressor over-temperature protection	Ensure proper ventilation and check compressor.

Technical Specifications

The following tables and diagrams provide detailed technical specifications for the Dometic FreshJet Series 4 and Series 7 air conditioners.

Dimensions

Diagram Description: Diagrams show the external dimensions for each model:

FreshJet FJX4333EEH: 1090 mm (length) x 700 mm (width) x 312 mm (height).
FreshJet FJX7333IHP: 1090 mm (length) x 700 mm (width) x 312 mm (height).
FreshJet FJX7337IHP: 1090 mm (length) x 700 mm (width) x 312 mm (height).
FreshJet FJX7457IHP: 1090 mm (length) x 700 mm (width) x 312 mm (height).

Note: Specific dimensions for cut-outs and mounting points are detailed in the installation section.

Performance and Electrical Data

Model	Cooling Capacity (W)	Heating Capacity (W)	Voltage (V)	Frequency (Hz)	Max Current (A)	Refrigerant	GWP (CO2 eq.)	Noise Level (dB(A))	Weight (kg)
FreshJet FJX4333EEH	2200	1000	220 - 240	50	< 6.0	R32	0.243 t	< 70	< 34
FreshJet FJX7333IHP	2537 / 2285	-	220 - 240	50 / 60	< 6.9	R32	0.284 t	< 70	< 35
FreshJet FJX7337IHP	2910 / 2692	-	220 - 240	50 / 60	< 7.3	R32	0.324 t	< 70	< 41
FreshJet FJX7457IHP	3400 / 2903	-	220 - 240	50 / 60	< 7.8	R32	0.439 t	< 70	< 43

Note: The values for FJX7333IHP, FJX7337IHP, and FJX7457IHP represent cooling capacity at 50 Hz / 60 Hz respectively. Heating capacity is not specified for these models.

Diagram Description: Diagrams illustrate the external dimensions for each model, including length, width, and height, as well as cut-out dimensions and mounting hole positions.

Compliance and Safety

Environmental Standards: The units are designed to comply with ISO 5151 standards. The refrigerant used is R32, which has a lower Global Warming Potential (GWP) compared to older refrigerants.

RoHS Compliance: This product complies with RoHS (Restriction of Hazardous Substances) directives, limiting the use of hazardous materials such as Lead (Pb), Mercury (Hg), Cadmium (Cd), Hexavalent Chromium (Cr(VI)), Polybrominated Biphenyls (PBB), and Polybrominated Diphenyl Ethers (PBDE).

Diagram Description: Symbols indicating compliance with RoHS directives are present.

	Dometic FreshJet Series 4 & 7 Roof Air Conditioner Operating Manual Comprehensive operating manual for Dometic FreshJet Series 4 and Series 7 roof air conditioners, detailing installation, operation, safety, maintenance, and troubleshooting for RVs and caravans.
	Dometic FreshJet Series 4 & 7 Installation Guide for RVs Comprehensive installation guide for Dometic FreshJet Series 4 and Series 7 roof air conditioners, detailing setup, safety, and technical specifications for recreational vehicles.
	Dometic FreshJet Series 4 & 7 Roof Air Conditioner Operating Manual Comprehensive operating manual for the Dometic FreshJet Series 4 and Series 7 roof air conditioners, covering installation, operation, maintenance, and troubleshooting.
	Dometic FreshJet FJX Series Roof Air Conditioner Operating Manual Comprehensive operating manual for Dometic FreshJet FJX series roof air conditioners, covering installation, operation, maintenance, and troubleshooting for recreational vehicles. Features models FJX4233M, FJX4233EEH, FJX4333E, FJX7333IHP, FJX7337IHP, FJX7457IHP.
	Dometic FreshJet FJX Series Roof Air Conditioner - Short Operating Manual This document provides a concise operating manual for the Dometic FreshJet FJX series of roof air conditioners. It covers essential information including important notes, safety instructions, intended use, explanations of symbols, model features, air conditioning modes, initial setup, operation details for different models, disposal guidelines, and warranty information.
	Dometic FreshJet FJX Operating Manual This manual provides comprehensive operating instructions for the Dometic FreshJet FJX roof air conditioner, covering installation, operation, maintenance, and troubleshooting.
	Dometic FreshJet FJX Roof Air Conditioner Operating Manual This manual provides comprehensive operating instructions for the Dometic FreshJet FJX series of roof air conditioners, covering installation, usage, maintenance, and troubleshooting.
	Dometic FreshJet FJX Climate Control Operating Manual Comprehensive operating manual for the Dometic FreshJet FJX climate control system, covering installation, operation, maintenance, and troubleshooting.