LIWOLF 2kW Diesel Heater User Manual

LIWOLF 2kW Diesel Heater

Product Information

Specifications

• Main Body: 16.5 lb (7.5 kg)
• Fuel Tank: 2.6 gal (10 L)
• Air Outlet Hose Length: 1 ft. 7.7 in. (50cm )
• Air Outlet Hose Diameter: 3.1 in. (8cm)
• Air Intake Hose Length: 1 ft. 7.7 in. (50cm )
• Air Intake Hose Diameter: 1.2 in. (3cm)
• Fuel Line Length: 13 ft. 1.5 in. (4m)
• Fuel Line Diameter: 0.2 in. (4mm)
• Exhaust Pipe Length: 1 ft. 6 in. (30cm)
• Exhaust Pipe Diameter: 0.4 in. (10mm)
• Heating Power: 2kW / 5kW
• Rated Voltage: 12V-24V Compatible
• Fuel Type: Diesel
• Working Temperatures: Check the user manual for details

User Manual

1. Safety Information: Read carefully before use to ensure safe operation.
2. Parts List: Refer to the list of components to verify all parts are included.
3. Product Diagram: Familiarize yourself with the product components for installation.
4. Installation: Follow the detailed installation instructions provided below.
5. User Manual: Instructions on how to operate the diesel heater.
6. Maintenance: Tips on how to maintain the heater for optimal performance.
7. Troubleshooting: Guidance on common issues and their solutions.
8. Product Warranty: Information regarding the product warranty terms and conditions.

Installation Instructions

1. Prepare the Installation Area: Protect the underlying material from moisture and water damage.
2. Mark Hole Locations: Use the mounting plate as a reference to determine hole positions.
3. Cut Holes: Use a hole saw or power drill to cut through the floor for pipes and hoses.
4. Seal Holes: Apply silicone around the holes and under the mounting plate to prevent water ingress.
5. Mounting the Heater: Secure the mounting plate and then mount the main body onto it.

Maintenance

To ensure proper functioning, regularly check and clean the air filters, inspect fuel lines for any leaks, and test the heater for efficient heating performance.

Troubleshooting

If you encounter issues such as no heat output or unusual noises, refer to the troubleshooting section in the user manual for step-by-step solutions.

Product Warranty

The product warranty covers manufacturer defects for a specified period. Refer to the warranty section in the user manual for detailed terms and conditions.

Safety Information

Danger

• ONLY use this product in accordance with these instructions and ALL local regulations and guidelines related to the use of diesel fuel and heating equipment. Failure to do so may expose you to legal liability and risk serious property damage and severe personal injury, possibly including death.
• DO NOT allow children or those unfamiliar with this product to use or install it. Do not use while under the influence of alcohol, drugs, or any medication that negatively affects your judgment or reflexes. Keep children and bystanders away during installation.
• Keep your work site clean and well-lit. Cluttered and dark work areas invite accidents.
• Disconnect the vehicle battery connections before any installation, adjustment, repair, or maintenance.
• ALWAYS turn off the heater before adding any fuel.
• ONLY use DIESEL fuel for the heater. The use of low-quality diesel or other types of fuel may result in malfunctions or even involve the risk of fire.
• ALWAYS use personal protective equipment (PPE) suitable for your task. Always wear ANSI-approved eye and hand protection while using this product. Nonslip footwear is also highly recommended. Other equipment, such as ear, head, and body protection, may also be necessary depending on your work and other equipment.
• Dress properly for the installation of the heater. DO NOT wear loose clothing or jewellery and keep hair, clothing, gloves, hoses, and tools away from any moving parts.
• The exhaust pipe must be routed to the outside of the vehicle or to an open outdoor area to prevent the accumulation of harmful gas in an enclosed space.
• NEVER operate the heater in a confined space without proper ventilation. This can result in the buildup of harmful gases and pose a risk to human health. If you experience any symptoms such as headaches, dizziness, or unconsciousness while operating the heater, immediately stop using
• the heater and move to a well-ventilated area. If symptoms persist, seek medical attention promptly. It is important to take these symptoms seriously and prioritize your health and safety. The heater and its components can become hot during operation. Avoid touching them to prevent the risk of burns or injury. ALWAYS wait for components to cool down or use protective gear when handling.
• ALWAYS install this heater in a spacious compartment away from any combustible or flammable materials. NEVER use the heater in hazardous locations such as fuel depots, carbon storage, and timber warehouses.
• If a fuel leak occurs, turn off the heater IMMEDIATELY and disconnect the fuel line. ONLY use a trained and licensed technician to repair the leak.
• Maintain this product. Check for misalignment, binding, wear, or other damage before use. If any damage is detected, repair or replace the problematic components before further use. Only replace components with identical parts.
• Cotton and sponge have a combustion point of 150°C, paper has a combustion point of 130°C, fabric has a combustion point of 270°C, and diesel fuel has a combustion point of 220°C. The temperature of the hot air outlet should not exceed 85°C, while the exhaust pipe outlet temperature can exceed 270°C.

Specifications

Parts List

Product Diagram

Installation

After drilling the holes necessary for the installation of this heater, it’s important to protect the underlying material from moisture and water damage. If any splintering occurs as the exhaust hole is created, ensure the area is covered with sealing paint to prevent water and moisture from getting in.
Main Body

1. When installing a diesel heater in a vehicle, it’s important to consider the location and potential impact on surrounding materials and components. Typically, the heater is mounted in a protected area, such as in the storage compartment under a bed in a transport truck or under a seat in a passenger vehicle. It can also be installed on walls or in protected compartments outside the operator’s cabin, as long as all regulations and installation instructions are followed. When choosing a location for the heater, ensure that there is sufficient clearance around the heater, ducting, and exhaust to prevent damage to heat-sensitive materials. Ensure the heater is not exposed to outside elements and that it is properly enclosed if mounted outside the vehicle cabin. Ensure the mounting surface will allow for a complete seal between the heater and the floor. Avoid exposing the heater to excessive heat or hazardous chemicals and fuels. Depending on the installation conditions, the acceptable angular range for each side is shown below:
2. Use the mounting plate as a reference to determine the exact positions for each hole. Clearly mark the spot for each hole.
3. Use a hole saw and/or power drill to cut through the floor of the vehicle. The holes are necessary to allow the pipes and hoses to connect and vent outside of the van, but be careful to minimize any other holes or gaps nearby.
4. Apply a generous amount of silicone (not included) around the circumference of the holes and under the mounting plate base. Carefully insert the mounting plate into the holes, ensuring that it sits flat and is centered. Secure the four corners of the mounting plate to the caravan floor using four of the provided M6 screws and nuts.
5. Remove the nuts and washers from the bolts at the bottom of the main body and then mount the main body onto the mounting plate. Get under your vehicle and secure the heater unit to the bracket by replacing the washers and nuts, making sure it is properly aligned and secure.

Air Inlet & Outlet Vents

1. Remove the nuts and washers from the bolts at the bottom of the main body and then mount the main body onto the mounting plate. Get under your vehicle and secure the heater unit to the bracket by replacing the washers and nuts, making sure it is properly aligned and secure.
2. Cut the hole using a hole saw and/or power drill .
3. Cut a piece of the air outlet ducting that is just long enough to reach from the diesel heater to the newly cut hole. Secure one end of the ducting to the outlet vent and insert it into the hole. Use a hose clamp to attach the other end of the ducting to the diesel heater. If necessary, use the inlet/outlet brackets to secure the ducting to the wall or floor.
4. Fix the vent casing in place using M6 screws and nuts and then attach the outside cover. Repeat the process for the air inlet ducting, which will be longer than the outlet ducting.

Note : The above steps are for reference, and installation may differ depending on the specific setup and location.

Air Intake Pipe

1. Attach the air filter to the end of the air intake pipe.
2. Connect the air intake pipe to the bottom of the diesel heater using a pipe clamp.
3. Mount the air intake pipe under the vehicle’s floor using a hose clamp.
4. Position the pipe so it faces towards the rear of the vehicle to prevent dust buildup during transit.

Exhaust Pipe

1. Use two M6 screws, washers, and nuts to install the exhaust muffler and muffler bracket at a suitable position near the heater. Make sure it is directed away from the vehicle to ensure that the exhaust do not get trapped underneath the vehicle. Do not point it towards the awning area to avoid inhaling exhaust while sitting outside.
2. Route the exhaust pipe from the heater to the exhaust muffler, using the pipe bend if necessary. Fasten it with a pipe clamp. Make sure to position the exhaust pipe on a slight downward slope from the diesel heater unit to allow for any condensation to drain out.

Fuel Assembly

1. Choose the location for the heater’s dedicated fuel tank. Considering your specific vehicle setup and choose the location that is most suitable in order to maximize stability and minimize spillage. Use the M4 screws or similarly strong fasteners to secure the fuel tank to the floor or wall through the three holes in the tank body. Use the M4 Washers to prevent any leakage.
2. Open the fuel tank and take out the small accessory bag. Determine a location for the fuel pipe and drill a 0.27 in. (7 mm) hole in either the side or bottom of the tank. Thread a piece of wire (not included), e.g. an unbent wire coat hanger, through the hole and up to the opening at the top of the tank. Place the fuel pipe nipple on the end of the wire at the top and use the wire to guide it through the hole in the bottom. Secure the nipple in place with an O-ring and the fuel pipe nipple nut on the outside of the tank. Connect the fuel pipe and fasten it with fuel pipe clamps. Use fuel pipe extensions if needed.
3. Use the fuel pump bracket to install the fuel filter and fuel pump somewhere under the van and near the fuel tank. Place the fuel filter closer to the fuel tank. Place the fuel pump closer to the diesel heater, using a fuel pump shock clip for secure mounting. Ensure that both the filter and pump are angled between 15 and 30 degrees for the best performance.
4. Measure three sections of fuel pipe: firstly from the fuel tank to the fuel filter, secondly from the fuel filter to the fuel pump, and third from the fuel pump to the diesel heater. Cut the fuel pipe into three separate sections, according to your needs. Connect the fuel pipe sections between the fuel tank, fuel filter, fuel pump, and diesel heater by attaching the sections at each corresponding point and securing them with jubilee clips.

Wiring

1. Connect the positive and negative wires to the battery terminals.
2. Connect the harness to the diesel heater.
3. Connect the wiring to the fuel pump.
4. Connect the wiring to the LED control panel.
5. If necessary, drill a small holeto arrange the wiring to a desired location, such as the fuel pump under the van. To achieve this, remove the connection connector, run the wiring through the hole, and then reconnect the connector. It is recommended to install the LCD monitor display in a convenient location such as on the wall, as it will serve as the control center for operating the diesel heater.

Please note that the above steps are for reference only, and the installation process may vary depending on specific settings and locations.

User Manual for Parking Heater

The control panel is shown in the diagram below

1. Gear up button
2. Power on/off button
3. Gear down button
4. Settings button
5. OK button
6. Working status symbol
7. Display of ambient temperature
8. Timer symbol
9. Plateau mode symbol
10. Fault symbol
11. Display of data and parameters
12. Schematic diagram of the main unit

Operating Instructions

Power On/Off Operation

Power On Operation:

In the power-off state, press and hold the power button for 2 seconds to turn on the device. The display will show the “Power On State” as shown in the diagram above.

Power Off Operation

In the power-on state, press and hold the power button for 2 seconds to initiate the cool-down process before shutting down. The display will show the icon “Cooling Down”. After the cool-down process, the device will shut down and display the “Power Off State”. Please note that when the device is in the cooling-down state, do not forcefully cut off the power directly, as the components need to cool down to prevent damage. Only disconnect the power when the machine is in the power-off state.

Manual Mode Operation

The manual mode has 6 gears ( H1-H6 ), with H6 indicating the maximum power. In the “Power On State” as shown in the diagram above, use the Gear Up (     ) or Gear Down (     ) buttons to adjust the gear position. The current gear position is indicated by the bar graph on the main unit schematic diagram.

Auto Mode Operation

In the auto mode, as shown in the diagram above with the temperature set at 20°C, use the Gear Up ( ) or Gear Down ( ) buttons to adjust the temperature within the range of 5°C to 30°C. Press and hold the Settings button to switch between manual and auto mode. The temperature range is displayed on the panel: -20°C to 40°C.

Switching Display Data in Power-On State:
In the power-on state, press the OK button to switch the display data in the following order: gear position (or set temperature) -> casing temperature -> operating voltage.
Manual Fuel Pump Operation:
In the power-off state, simultaneously press and hold the Gear Up ( ) and Gear Down ( ) buttons for 2 seconds to manually control the fuel pump. Release the buttons to stop the fuel pump operation. Please use with caution.
Plateau Mode Operation:
Simultaneously press and hold the Settings button and the OK button for 2 seconds to enter the plateau mode. The icon “Plateau Mode” will be displayed, indicating that the wind-to-oil ratio is adjusted to adapt to high-altitude areas with low oxygen levels. To exit the plateau mode, simultaneously press and hold the Settings button and the OK button for 2 seconds.
Please use it with caution.
Setting Timer for Power-On/Off:
Simultaneously press and hold the OK button and the Gear Down ( ) button for 2 seconds to enter the timer setting interface, as shown in the diagram. The symbol “ ” will blink, indicating a scheduled power-on time of 10.1 hours.

• ON: Set the timer for power-on.
• OFF: Set the timer for power-off.
• Use the Gear Up ( ) and Gear Down ( ) buttons to adjust the time value. Time adjustment range: 0.1~24.0 hours
• Press the power button to switch to the next digit.
• Press the Settings button to toggle between adjusting the power-on and power-off time values. 5.4 Press the OK button to save the settings and exit the interface.
• Press and hold the Settings button for 2 seconds to exit the interface without saving the settings.

Initiating Timer for Power-On/Off:
Simultaneously press and hold the Settings button and the Gear Up ( ) button to activate the timer function. In the power-off state, the timer will initiate the power-on process, and in the power-on state, it will initiate the power-off process. The symbols “ON” or “OFF” will blink, indicating the respective timer status. Press the Settings button to view the remaining time.
Remote Control Pairing:
In the power-off state, simultaneously press and hold the Gear Down ( ) button for 2 seconds to enter the remote control pairing mode, as shown in the diagram.

• Use he Gear Up ( ) and Gear Down ( ) buttons to adjust the third digit to set the remote control number, ranging from 1 to 5, corresponding to five different remote controls.
• Once the desired remote control number is selected, press any button on the remote control to complete the pairing process.
• Press the Settings button to exit the remote control pairing mode.
• Remote control requirements: 433MHz frequency band, 24-bit code.

Fault Alarms

The diagram shows the corresponding fault symbols blinking, indicating the occurrence of a fault in the respective component. The displayed data represents the fault code. Please refer to the fault table for the specific meanings of the fault codes.
Blinking symbols for spark plug, fuel pump, fan, sensor, power supply, etc., indicate a fault in the corresponding component.

Remote Control User Manual

Panel Overview:

1. Display: Environmental temperature
2. Device Status
3. Battery Voltage Indicator
4. Operational Data and Parameters
5. Gear Up Button
6. Gear Down Button
7. Power On/Off Button
8. Confirm Button

Operating Instructions

1. Device Status:

2. HEAT – Heating mode

3. COOL – Cooling mode

4. STOP – Power off

5. Operational Data and Parameters: PV – Power supply voltage

6. SG – Gear level

7. ST – Set temperature
   FT – Casing temperature
   ALM – Fault indication

8. Usage Instructions

9. Long-press the Power On/Off button for 2 seconds to turn the device on or off.

10. In the Power On state, use the Gear Up (▲) or Gear Down (▼) buttons to increase or decrease the gear level or set the temperature. Long-press the OK button to switch between manual and automatic mode.

11. In the Power On state, press the OK button to toggle the display: gear level (or set temperature) -> casing temperature -> operating voltage.

12. In the Power Off state, simultaneously long-press the Gear Up and Gear Down buttons to activate the fuel pump for priming. Release the buttons to stop the priming process.

The battery symbol indicates low battery power. Please replace the batteries.
To extend battery life and conserve power, the remote control will automatically power off if there is no button press for 30 seconds. Press any button to power it on again.

Maintenance

Poorly ventilated exhaust can be fatal. Follow all ventilation maintenance procedures carefully.

• Periodically inspect the electrical connections, if a loose connection is found, tighten them if necessary.
• Regularly check the fuel levels of the fuel tank to ensure there is enough diesel to keep the heater running. If the fuel level is low, top up the tank with diesel, being careful to avoid overfilling.
• Clean the air filter regularly by removing it from the heater and tapping it gently against a hard surface to remove debris. Use a clean cloth or brush to remove smaller dirt or debris. Finally, reattach the air filter to the heater. It is recommended to clean the air filter every few months during normal use and more frequently in polluted areas or after heavy use.
• Check the fuel pipe and connections for any signs of leaks, such as fuel spots on the floor or a strong diesel odor. If there are leaks, tighten the connections to prevent further leakage. If you are unsure how to tighten, consult your vehicle’s manual or seek assistance from a trained and licensed technician.
• Check the exhaust pipe regularly for blockages, clearing and cleaning the line if needed.
• If the heater has not been used for an extended period, it is important to perform a test run before actual use. This will ensure that the heater is functioning properly and that there are no leaks or other issues that could be harmful. To perform a test run, turn on the heater and let it run for a few minutes while observing the fuel and temperature, and exhaust pipe. If everything appears to be working correctly, the heater is ready for use. If you notice any issues, such as dirty or broken components, clean or replace them as needed. For significant issues, seek assistance from a trained and licensed technician.

Troubleshooting

E-2

| ****

Power supply voltage range

| ****

Check the voltage range (24V: 18-32V, 12V: 9-16V), inspect the battery or generator for normal operation, and check if the fuse is broken.

E-3

| ****

Ignition plug failure

| 1. Check for loose ignition plug connectors and/or possibly wire short- circuit with the housing.
2. Check if the ignition plug is damaged.

E-4

| ****

Fuel pump failure

| Inspect the fuel pump connection harness and connectors for damage, looseness, oxidation, short circuits, or open circuits.

E-5

| ****

High-temperature alarm (Inlet > 50℃;

Housing > 230℃)

| 1. Check if the heating airflow path is clear.
2. Verify if the fan is operating correctly.
3. Inspect if the temperature sensor is functioning properly.

E-6

| ****

Fan failure

| 1. Check if the impeller is jammed.
2. nspect for any loose connection plugs.
3. Ensure a proper gap between the magnet on the fan wheel and the Hall sensor on the controller.
4. Check for short-circuit or open circuits on the harness; check for motor leak electricity.

E-08

| ****

Stall

| ****

1. Check if any of the following circum-stances stances is being found: low fuel, low-temperature solidification of fuel, fuel pipe blockage, or fuel pump jamming.

2. Inspect if the intake and exhaust airflow paths are clear.
3. Ensure sufficient contact between the housing temperature sensor and the housing.
Fault Code| Fault Reason| Troubleshooting
---|---|---

E-8

|

Start failure

| 1. If the housing temperature is too high and the cooling operation fails to cool down the housing, wait an excess of time until the machine is cooled down and try to power on again.

2. If there is an excess amount of white smoke in the exhaust.

| 2.1) Check if the filter next to the ignition plug is clean, replace it if dirty.
2.2) Verify if the fuel injection from the fuel pump is working properly.
2.3) Inspect if the ignition plug is damaged.

3. If there is a small amount of white smoke or no smoke in the exhaust.

| 3.1) Check for fuel shortage, frozen or blocked fuel pipe.
3.2) Inspect if the fuel pump is stuck or damaged and unable to deliver fuel.
3.3) Verify the air intake and exhaust blockage.
3.4) Check if the ignition plug is damaged.
3.5) Check if the gap between the internal fan wheels is too large.
4. If the ignition is normal but the ignition failure fault persists.| 4.1) Ensure sufficient contact between the housing temperature sensor and the housing.

E-9

|

Sensor failure

|

Check if the temperature sensor harness and connectors are damaged or loose.

Note:
During the installation process or in your day-to-day usage, if you encounter any issues, please feel free to reach out to our customer service on the purchasing platform. We are here to assist you and will make every effort to resolve any problems you may have.

Warranty

Product Warranty

Thank you for choosing our company’s product. We adhere to the principle of emphasizing both quality and reputation, and we provide excellent after-sales service and technical support to our valued customers.

1. Our company provides a 12-month free warranty service for the main unit of the product from the date of receipt. (Excluding non-manufacturing defects)
2. 2. Please note that damages resulting from improper use, expiration of the warranty period, or due to human factors or natural wear and tear are not covered by the free warranty. However, we understand that accidents happen, and we are here to assist you. If you encounter any issues with your product, please reach out to us, and we will provide guidance and support to resolve the problem.
3. For product warranty or replacement, please contact the customer service of the purchasing platform for further assistance.

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