VELIT-20231530 2000R Rooftop Air Conditioner Instruction Manual
- June 13, 2024
- VELIT
Table of Contents
VELIT-20231530 2000R Rooftop Air Conditioner
Thank you for purchasing this VELIT 2000R Rooftop Air Conditioner. For safety and the best performance, please read and follow these instructions carefully. The latest electronic version of this document is available for download at the product page. We wish you enjoy your Velit air conditioner. For any product questions or issues, you can reach out to us at support@velitcamping.com or use the online chat box at velitcamping.com.
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
Understand Signal Words
WARNING
Indicates a hazardous situation that if NOT avoided, could result in death or
serious injury.
CAUTION
Indicates a hazardous situation that if NOT avoided, could result in minor or
moderate injury.
NOTICE
Indicates practices NOT related to physical injury
General Safety Message
WARNING
- This unit MUST be installed and repaired by qualified personnel who are familiar with the risk 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
NOTICE
- 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.
SPECIFICATIONS
| Model | 2000R |
|---|---|
| Input Voltage | 12V |
| Operating Current | 20-60A |
| Cooling Capacity | 8000BTU/2200W |
Operating
Temperature
| 38-125°F
0-52 °C
Rated Power| 720W
Refrigerant| R134a 750g
Noise Level
| Eco mode : SSdB
Boost mode: 65dB
Roof Unit
Dimension
| W31.7″x L31.7″x
H7.1″
Air Distribution
Box Dimension
| W13.8″x Lll”x
H4.3″
Weight| 661b
INSTALLATION
Choosing Proper Location for the Air Conditioner
CAUTION
- Route the 6AWG power cable to the roof opening. Leave at least six inches of slack. For cables longer than 15ft, refer to NEC (National Electric Code) for proper sizing of wire (12V GOA).
WARNING
Make sure to disconnect all power supplies to the vehicle including battery,
generator, and shore power prior to installation.
- The unit can fit over an existing 14-1/4 by 14-1/4 roof opening. For other locations, make sure the slope of the select location is less than 15 degrees and leave a clearance of at least 10″ from the edge of the roof. Refer to specifications for the dimension of the unit.
- After the location has been selected, check for obstructions in the area where the unit will be installed.
- Check the inside of the camper for decor panel obstructions. Allow 6″ clearance from all edges of the opening.
- Route the 6AWG power cable to the roof opening. Leave at least six inches of slack. For cables longer than 10ft, refer to NEC (National Electric Code) for proper sizing of wire (12V GOA)..
Attach the Sealing gasket to the Roof Opening
- Clean the surface between the unit and the roof where the sealing gasket will be installed.
- Apply sealant to the bottom of the sealing gasket. The sealant depends on the material of the roof.
- Place the sealing gasket on the roof opening.
- For better sealing, apply sealant to the edge where the sealing gasket contacts the roof.
- At the shown locations and other places if needed, stick the foam pieces between the unit and the roof to better support the unit
Place the Unit over the Roof Opening
- Grap the bottom two sides of the unit, lift it, and place it over the roof opening.
- Pull out the power cable.
Secure the Unit to the Mounting Brackets
- Choose the proper length of MB threaded rods based on roof thickness.
- Insert the threaded rods in the shown mounting holes (#10).
- Hand tightens four nuts all the way down to the bottom surface of the unit to secure the threaded rods
- Use the threaded rods as guidance, place the mounting brackets, and secure the brackets with provided washers and anti-slip nuts to 4.5-5.6NM (3.3-4.2 lb. Ft). Cut the threaded rods to desired length if needed.
NOTICE
DO NOT OVERTIGHTEN!
Connect Wiring
- Connect the power cable. On this end, the cable should have fuse boxes on both positive and ground.
- On the other end of the power cable, connect to the battery. On this end, there is only one fuse box on positive.
Install the Decor Panel
- Use the provided self-taping screws and washers to secure the decor panel to the roof.
OPERATION
Modes
Mode changes only the compressor speed. Fan speed can be adjusted separately.
Output from low to high:
Control Panel
- Power ON/OFF: short press to turn on the unit. Long press two seconds to turn off the unit. Long press ten seconds to reset to factory default setting.
- Mode Switch: short press to switch between operating modes: Output from low to high output: Sleep, Eco, Cooling, Turbo The mode only changes compressor speed. Fan speed can be adjusted separately.
- Fan Speed+: Increase fan speed
- Fan Speed -: Decrease fan speed
- Temperature+: Increase setting temperature
- Temperature-: Decrease setting temperature
Remote Control
NOTICE This is a general-purpose remote. Some buttons do not apply to this model.
Switch Display Unit °C/°F
This feature is only available to units that come with display remote control.
When the unit is powered off, on the remote control, short press the mode
button and down arrow button at the same time. The display unit on the remote
will switch. Turn on the unit with the remote and the unit on the display
panel will sync with the remote.
Under/Over-Voltage Protection
Low voltage protection will auto shut off the unit when the supplied voltage
is lower than the cut-off voltage (default 10.5/21.SV) and the low-voltage red
light will light up. The unit will turn on automatically once the supplied
voltage is higher than the recover voltage (default 12/23V). When the supplied
voltage is higher than 18/30V, the unit will turn off and the high-voltage red
light will light up. The unit will turn on automatically once the supplied
voltage is lower than 18/30V.
Edit Low Voltage Protection
Long press the Mode Switch to edit low voltage protection. Press Fan Speed+ to
increase cut-off voltage. Press Fan Speed – to decrease cut-off voltage. Press
Temperature+ to increase recover voltage. Press Temperature – to decrease
recover voltage.
TROUBLESHOOTING
Error code
There are multiple sensors built inside the unit. When an error is detected,
the error icon will flash with the error code displayed. Check the table below
for the meaning of the error codes and contact customer service when needed.
| Code | Cause | Troubleshooting |
|---|---|---|
| EO | Ambient temperature sensor (White 2 pin connector) | Use a flathead screw |
driver to pry open the display panel. Ensure the white 2pin connector is seated properly.
Replace the sensor or the display panel if needed
El| Evaporator temperature sensor (Red 2 pin connector)| El : Use a flathead
screw driver to pry open the display panel. Ensure the red 2pin connector is
seated properly . Replace the sensor or the display panel if needed.
E2| Over-current| Verify there is no short in the wiring harness. Make sure
the outside fan and the side/bottom air inlet are not blocked. Rinse the
condenser with water to clean off
elements.
E3| Blocked rotor| Contact customer service
E4/EL| Low-voltage| Check the system and battery voltage. By default, this
error code triggers when voltage drops below 10.SV. Make sure the wiring is
connected properly and there is no loosed nuts or crimps
ES| Short protection/faulty controller| Contact customer service
E6/EH| Over-voltage| Check the system voltage . It should be less than 15V
E7| Compressor startup failure| Contact customer service
E8| Condenser fan| Make sure condenser fan connector is seated properly.
EF| Evaporator blower fan| Make sure the blower fan connector is seated
properly . Pry open the display panel and make sure the fuse is intact.
Eb| Controller lack-phase| Contact customer service
EU| Controller overheated| Let the unit sit for ten minutes and restart the
unit
Unit not cooling
Clean the inlet filter. Turn on the unit and measure the pressure at the low-
pressure port. Use this chart to find the nominal pressure value based on the
ambient temperature. If the pressure is lower than the nominal value, use a
R134a recharge kit (can be purchased from Auto part stores and Home Depot) to
charge the unit to the desired pressure. If there is grease and other sign of
leakage, reach out to a technician to identify and fix the leak. Vacuum the
system and charge with 750g of R134a.
Ambient (Outside) Temperature
OF
| Standard Low Side Pressure Range PSI
---|---
65| 25-35
70| 35-40
75| 35-45
80| 40-50
85| 45-55
90| 45-55
95| 50-55
Small rattling noise
Small rattling noise may be noticeable due to inconsistent temperature within
the refrigerant. Increase the fan speed to mitigate the issue.