Nomadic NC-X3 Rooftop Air Conditioner Owner’s Manual

: June 9, 2024
: Nomadic

Table of Contents

NC-X3 Rooftop Air Conditioner
Contents Included
Control Panel Legend
Remote Control Description
Common Fault Code Processing Method:
Maintenance
Disclaimer
Nomadic AC Dimensions
Contact Information
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Nomadic Cooling NC-X3
Rooftop Air Conditioner
Operation Manual

NC-X3 Rooftop Air Conditioner

Improper operation or maintenance of the rooftop parking air conditioner may cause adverse consequences, which in turn, may cause damage to vehicle components. To install and maintain rooftop parking cooler, Nomadic training courses, corresponding technical documents, professional tools and special equipments are required. Only Nomadic’s original accessories are allowed.
It is not suggested to conduct operation and maintenance of the product without completion of Nomadic training, lacking of corresponding qualification for working on air conditioning system or necessary technical documents, tools and outfits.
Read and comply with warnings and notes in these installation and operation instructions of this product.
Reminder :
To guarantee better comfort effect, it is preferable to cool down cabin via the original air conditioning system in vehicle before starting parking air conditioner only for stationary use.

Contents Included

#	Items	Quantity
1	12V or 24V Air Conditioning Unit	1
2	Interior Control Panel	1
3	Remote	1
4	Metal Washers Large	4
5	Metal Lock Washers	4
6	Mounting Bolts Large	4
7	Mounting Nuts	4
8	14 x 14 Waterproof Gasket	1
9	14 x 14 Interior Mounting Brace (Metal
Powder Coat)	1
10	Interior Vent Screws Small in Black Finish	8
11	600g R134a Refrigerant (Pre Filled)	1

Control Panel Legend

ON-OFF: Press this button to switch the device ON or OFF.
Mode: Push this button to switch between the modes; Auto, Eco, and Power.
Airflow: Each push on this button corresponds to a cycle through 5 different airflow levels.
Auto 78 ºF: Pressing this button enables automatic management towards 78ºF.
Temperature “+”: Each push of this button corresponds to the increase of 1ºF of temperature.
Temperature “-”: Each push of this button corresponds to the decrease of 1ºF of temperature.
Display Window: Display temperature, airflow, voltage, error codes and ambient temperature.
Infrared Signal: Acceptance of infrared signal from remote controller by users.

Low-Voltage Protection Function
Settings: Long press on “78ºF” button until screen starts blinking, adjust low-voltage cutoff value (default value is 11.4V, ranging 9 -11.5V) via Temp “+” or “-” button, and then long press on “78 ºF” button again for 5 seconds.
In order to ensure the usage time, it is recommended to use the battery after it is fully charged.

Remote Control Description

ON-OFF: Turns unit on and off
Power Mode is used for fast cooling S
Eco Mode is used when resting or reading E is preferred.
In Power Mode, the default airflow is the biggest with the manual adjustment.
In Eco Mode, compressor is running in low frequency, airflow is defaulted as smallest with manual adjustment.
Note: Strong recommendation for Power Mode less than 20 minutes. Long time operation will significantly shorten the duration of use. When cabin temperature is below 30ºC, Auto Mode is preferred. In different modes, users can adjust the air volume according to their needs. Please set it according to your own needs. Above notes are only for reference.
Timer: After timing, Temp “+” Temp “-” set the time, 0.5 hour one level, up to 10 hours, press the timer key again, timer cancellation.
Temp Query: Cycle switching between ambient temperature and evaporator surface temperature.
Voltage Query:Displays Voltage Reading
Temp “+” : Temperature Increase 8. Temp “-” : Temperature Decrease
Airflow “+” : Increased Air Speed
Airflow “-”: Decreased Air Speed
Auto Mode: Automatically sets thermostat to 78º
Mode: Eco, Normal, Powerful A

(The current product status is in the selected heating and ventilation mode, only the indoor blower works.)

Nomadic NC-X3 Rooftop Air Conditioner - indoor blower

Error Codes and Trouble Shooting Failure analysis of no cooling or poor effect:

The power cord connected is too long and too thin, Poor connection at connector.
No refrigerant or insufficient refrigerant.
Eco mode is used when the temperature is too high.
Compressor or condensing fan does not work.
The evaporator or condenser is dirty or blocked.

Common Fault Code Processing Method:

The battery power is insufficient and under voltage E2.
(1) Check the battery for aging and replace it.
(2) If the battery is not fully charged, it needs to be charged.
(3) Connect the negative pole of the power line to the metal or the generator, reconnect the wirings or harness.
Pressure Fault (System leakage) E4:
-Refrigerant leakage or poor heat dissipation.
Sensor Fault E0 or E1:
(1) Check whether the plug-in is loose and re-insert it tightly.
(2) Sensor quality problem, replace the sensor.
High current protection F6, electronic fan fault F7.
(1) Check the condenser heat dissipation, whether the surface is dirty and blocked.
(2) Check whether the terminal or plug-in of the power line is loose.
(3) Check if the plug-in of the fan is loose, and plug it in again.
(4) Condenser fan failure, replace the fan.

Ways to deal with the above code: Turn off the power and turn on the machine in 5 minutes. If the fault is not solved please refer to the maintenance manual or contact the local dealer.

Code	Description	Troubleshooting
EO	Inlet temp sensor fault	Check sensor connector
El	Outlet temp sensor fault	Check sensor connector
E2	Low Voltage	Check battery or harness
E3	High Voltage	Check battery or power
E4	Pressure (system leakage)	Check R134a leakage
FO	Disconnected/Blocked compressor	Check cooling fan working or not / R134a

Maintenance

In order to ensure the normal operation of the air conditioner, please pay attention to the routine maintenance:

When idle for a long time, please remove the positive and negative power lines at the battery end, and pay attention to the sealing and to avoid negative connection direct to ground, so as to avoid battery damage caused by long-term electrification (the power line must be connected to the battery, and it is strictly forbidden to connect negativdirect to ground or connect the generator).
The air conditioner needs to be maintained every 3 months (cleaning evaporator and condenser, checking internal and external circuits); the maintenance cycle should be shortened appropriately in special working conditions, such as dusty and high temperature environment. Refer to table 7 of the maintenance manual for product maintenance.
It is not recommended to install generators, solar energy and other external charging equipment.

Disclaimer

We provide installation videos and installation Instruction, users must install strictly in accordance with the video and instructions. If the user fails to install in accordance with the installation video and instructions provided, human failure or damage and other accidents occur, the user shall bear the responsibility, the maintenance and material costs caused by the user shall be paid separately, and our company will not bear any responsibility.
The user must pay attention to safety issues during the installation process, in case personal safety issues occur, the user must bear the responsibility.
If the user changes the air conditioning privately, or the replacement of parts and components that are not the original happens, the user shall bear the responsibility of the caused damage to the air equipment and personal safety issues, our company will not bear any responsibility.