Free English DUO LANG DL-C3500 (01) PDF document. Download the PDF, use the online viewer, or browse the FAQs for easy troubleshooting.
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How do I install the trundles on my DUO LANG DL-C3500?
The DUO LANG DL-C3500 is configured with four 2.5 inch trundles, specifically two trundles with brakes and two trundles without brakes. Before use, take out the trundles and use screws to fix each trundle at the bottom of the water tank. The trundles with brakes should be placed on the same side, while the trundles without brakes should be placed on the other side.
How do I perform a water injection on my DUO LANG DL-C3500?
Strongly press the upper part of the water injection door to open it. You can then use a water pipe or watering can to add the required amount of water. Once filled, close the water injection door. Alternatively, if your DUO LANG DL-C3500 is equipped with an optional automatic water injection model, you can connect an external water pipe to the water pipe connector of the machine, and the float valve will automatically manage the water level.
How do I operate the DUO LANG DL-C3500 using the control panel?
After the power supply is connected, the DUO LANG DL-C3500 will be in standby state and the buzzer will send a prompt tone. Press the power key to start the cooling fan at intermediate speed; press again to run it at low speed; and press it once more to turn off the cooling fan. Use the fan speed key to continuously cycle through the speed settings. The vane-swinging key adjusts the left-right swinging direction. The timing key sets the operating state with an interval of 0.5h up to a maximum of 7.5h. The refrigeration key starts the cooling function, and if ice is added to the water tank, the temperature at the air outlet can be reduced by 5 to 8 degrees Celsius.
How do I disassemble the rear wet curtain plate for the DUO LANG DL-C3500?
To disassemble the rear wet curtain plate on the DUO LANG DL-C3500, unscrew the three screws at the upper part of the stone plate. Lift the wet curtain plate until its bottom is out of the water tank, then pull the plate outward until it is completely loosened.
How do I drain the water from my DUO LANG DL-C3500?
To discharge water from the DUO LANG DL-C3500, unscrew the water drainage rotary knob at the back of the water tank. Slightly incline the machine body to completely discharge the water. It is recommended to periodically drain the water to keep the machine clean and maintain good water quality.
What are the safety rules for operating the DUO LANG DL-C3500?
1. Before any maintenance, ensure the DUO LANG DL-C3500 is in the OFF state and the power socket is turned off.
2. To avoid electric shock risk, please correctly connect the grounding receptacle.
3. Use the grounding device with automatic protection against wrong ground connection.
4. Do not allow persons or children without perfect disposing capacity for body, perception, and mentality to contact or operate the DUO LANG DL-C3500, unless they are supervised by someone who knows how to operate the machine.
5. Do not use a solidified fan speed controller to operate the DUO LANG DL-C3500.
How do I troubleshoot common issues with the DUO LANG DL-C3500?
Refer to the following table for troubleshooting the DUO LANG DL-C3500:
| Situation | Reason | How to do |
|---|---|---|
| Power light not flashed | 1: no power, 2: main control panel problem, 3: fused, 4: LCD panel problem | 1: get the power supply, 2: change the main control panel, 3: change the fuse, 4: change the LCD panel |
| Out of control | 1: obstruction for the power source, 2: obstruction for surrounding, 3: LCD panel problem | 1: restart the unit, 2: clean and away from obstruction, 3: change the LCD panel |
| Wind is too small | 1: fan blocked, 2: water curtain or filter plugged up, 3: fan out of shape, 4: main control panel problem | 1: check and tight, 2: change and clean, 3: change the fan, 4: change the main control panel |
| Motor not in control | 1: main control panel problem, 2: LCD panel problem | 1: change the main control panel, 2: change the LCD panel |
| Abnormal noise | 1: varia inside the unit, 2: fan loose, 3: electric motor error | 1: take off filter to get varia out, 2: tight the fan, 3: change a motor |
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