VELIT 2000U User manual

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DC Under-bench Air Conditioner
Instruction Manual

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Thank you for purchasingour VELIT 2000U Under-bench AirConditioner. For your safety and the best performance,
please read and follow these instructions carefully. The latest electronicversion of this document is available for
download on the productpage.We hope you enjoy yournew Velitair conditioner. For any productquestions or
issues, you can reach out to usat [e-mail] oruse the online chat box at velitcamping.com.
Table of Contents
1.IMPORTANT SAFETY INFORMATION ................................................3
1.1 Understand Signal Words.........................................................................................................................3
1.2 General Safety Message...........................................................................................................................3
2.SPECIFICATIONS.................................................................................4
3.ACCESSORIES.....................................................................................5
4.INSTALLATION.....................................................................................6
4.1 Exhaust Vent ..............................................................................................................................................7
4.2 Drain Line..................................................................................................................................................12
4.3 Unit ............................................................................................................................................................13
4.4 Air Duct (Optional)...................................................................................................................................14
4.5 External Control Panel (Optional)..........................................................................................................14
4.6 Test Run....................................................................................................................................................15
5.OPERATION .......................................................................................16
5.1 Modes........................................................................................................................................................16
5.2 External Control Panel............................................................................................................................16
5.3 Internal Control Panel.............................................................................................................................17
5.4 Remote Control........................................................................................................................................18
5.5 Switch Display Unit °C/°F........................................................................................................................19
5.6 Under/Over-Voltage Protection..............................................................................................................19
5.7 Edit Low Voltage Protection...................................................................................................................19
6.TROUBLESHOOTING ........................................................................20
6.1 Error code.................................................................................................................................................20
6.2 Unit not cooling........................................................................................................................................21

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1.IMPORTANT SAFETY INFORMATION
This manual has safety information to help users eliminate or mitigate the risk of accidents
and injuries.
The installation of this unit MUST comply with the following code:
U.S：NFPA1192, NFPA70
CANADA: C22.1, CSA Z240
1.1 Understand Signal Words
Indicates a hazardous situation that if NOT avoided, could result in death or serious injury.
Indicates a hazardous situation that if NOT avoided, could result in minor or moderate
injury.
Indicates practices NOT related to physical injury
1.2 General Safety Message
●This unit MUST be installed and repaired by qualified personnel who are familiar with
the risks involved.
●Do NOT modify this product in any way. Any modifications can be extremely hazardous.
●Keep electrical devices out of reach of children and do not allow them to operate the
device without supervision.
●Only use accessories authorized by Velit.
●Do NOT use this unit in or near flammable environment.
●Do NOT let children use the unit without supervision
●Do NOT use this unit when the ambient temperature is lower than 40°F. This could
cause frost inside the unit.
●Do NOT power wash the unit or use detergent to clean the unit.

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2.SPECIFICATIONS
Model
2000U
Input Voltage
12V
24V
48V
Operating Current
20-60A
10-33A
5-15A
Cooling Capacity
8000BTU/2200W
Air Flow Rate
400mc/h
Rated Power
700W
Refrigerant
R134a 400g
Noise Level
Eco mode: 50dB
Boost mode: 60dB
Dimension
23.8” L x 16.2” W x 11.8”H
Weight
36.4lb

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3.ACCESSORIES
Parts
Quantity
Corner Bracket with Screws
6
100mm Exhaust Duct (4ft)
2
Exhaust Vent
2
Exhaust Duct Clamp
2
Duct mounting plate
2
64mm Air Duct (6ft)
2
Air Vent
2
Air Duct Clamp
2
External Control Panel with 6ft wiring
1
Drain Hose (1.5ft)
1
L Drain Hose Adaptor
2
Remote
1
Wiring Harness (6ft)
1
Cutting template set
1
1. Air Vent
2.
Air Duct Clamp
3.
Air Duct
4.
ExternalControl Panel
5.
Exhaust Duct Clamp
6.
Exhaust Duct
7.
Exhaust Vent
8.
L Drain Hose Adaptor
9.
Drain Hose

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4.INSTALLATION
When drilling into the vehicle body, make sure to check the other side and avoid drilling
into other components/wiring. Always apply sealant/paint to bare metal around the cut
surface to prevent rust.
Make sure to disconnect all power supplies to the vehicle including battery, generator, and
shore power prior to installation.
NOTICE
The installation procedure can be complicated. Please read the ENTIRE installation section
before starting to ensure the smoothest installation process. The general process should
follow the order below. Failure to do so can result time-consuming re-work.
1. Identify unit location and exhaust vent location
2. Drill holes for exhaust vents
3. Install exhaust vents
4. Identify drain hole location and drill the drain hole
5. Pull out extension connector for the external control panel (optional)
6. Secure the unit
7. Connect exhaust ducts
8. Connect drain hose
9. Install air vent and connect duct (optional)
10.Install external control panel (optional)
11. Connect power
12. Test air flow

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4.1 Exhaust Vent
Locate the exhaust vent location using the cutting template. Three configurations are
available to choose from:
One Rectangular hole
Exhaust and intake vents can be mounted together using the metal plate and six screws.
For this configuration, a rectangular hole needs to be cut. This approach is easier and faster
for installation.
Two square holes
The intake and exhaust vents are mounted separately. Two square holes need to be cut.
This configuration offers the most flexibility.
The vents can be mounted on the wall or on the floor. Follow the instruction below for
mounting in different locations.
Two round holes
Cut two 6-inch round holes at least 2 inches apart edge to edge. This worksthe best on flat
and even surfaces.

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Vent through the floor:
•Leave enough room for the vent and the unit.
•Make sure the vent location has free airflow and is free of direct obstruction within 8
inches.
•Make sure the fins on the vents do not point at each other.
•Cut the hole using the template. Apply sealant/paint to any bare metal edges.

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•Place the vent over the opening. Secure the vent to the floor with four self-tapping
screws.
•Apply sealant to the edge of the vent if needed.
Vent through the wall
•Leave enough room for the vent and the unit.

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•Follow the UP icon, the vents must be installed as shown.
•Make sure the vent location has free airflow and is free of direct obstruction within 8
inches.
•Cut the opening using the template. Apply sealant/paint to any bare metal edges.
•Connect one end of the duct to the vent. Tighten the clamp and pass the duct
through the opening.