VEVOR Diesel Heater

Product Overview

This document provides instructions for VEVOR Diesel Heaters, models XMZ-L-D4 and XMZ-W-D4. These heaters are designed to provide efficient heating for vehicles, RVs, workshops, and other enclosed spaces. They operate independently of the vehicle's engine system using a 12-24V DC power source and light diesel fuel.

VEVOR is committed to providing tools at competitive prices. The pricing claims represent an estimate of savings compared to major brands and should be verified at the time of purchase.

Safety Instructions

Please read all manual instructions carefully before operating. VEVOR reserves the right to interpret the user manual.

General Safety Warnings

• ⚠️ Warning: To reduce the risk of injury, read the instructions manual carefully.
• ⚠️ This symbol indicates a precaution, warning, or danger. Ignoring it may lead to accidents, injury, fire, or electrocution. Always follow recommendations.
• Do not modify important components or use spare parts from other manufacturers without permission.
• Only use original attachments and spare parts for installation and maintenance.
• Do not use the heater in places with flammable vapor or dust, such as fuel depots, carbon storehouses, timber storehouses, granaries, or diesel/petrol stations. Keep away from fuel tanks, compression tanks, fire extinguishers, clothes, or other flammable objects.
• Do not use a cigarette lighter for startup.
• Do not use the heater in closed and/or unventilated places.
• Turn off the heater when filling fuel.
• Do not cut off electric power while the heater is in operation.
• Contact VEVOR for repair if fuel leaks or discharges.
• Place the exhaust outlet outside to prevent exhaust fumes from entering the space.
• Do not cut off electric power directly to stop the heater from working.
• Seal all gaps between the mounting plate and the vehicle body.
• The machine will stop heating after over-temperature protection. Allow it to cool naturally before restarting.
• After turning off, do not immediately disconnect the power supply; allow 3-5 minutes for the machine to stop completely.
• The heater may take 3-5 minutes to reach normal operating temperature after startup.
• When starting, the heater draws significant current; a 12-24V adapter with 12A or greater is required.
• This appliance can be used by children aged 8 and above and persons with reduced capabilities if supervised and instructed on safe use. Children must not play with the appliance, and cleaning/maintenance should not be done by unsupervised children.

Specific Warnings

• ? Warning: Flammable material: Ensure no flammable substances are near the exhaust pipe, as it becomes very hot during operation.
• ☠️ Warning: Toxic material: Install with adequate ventilation to prevent carbon monoxide poisoning. Place the exhaust outlet outdoors.

Correct Disposal

♻️ Correct Disposal: This product is subject to European Directive 2012/19/EC. It requires separate refuse collection in the EU. Do not discard with normal domestic waste; take it to a collection point for recycling electrical and electronic devices.

FCC Information

This device complies with Part 15 of the FCC Rules. Operation is subject to two conditions: (1) This product may cause harmful interference. (2) This product must accept any interference received, including interference that may cause undesired operation.

CAUTION: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

This product has been tested and found to comply with the limits for a Class B digital device, designed to provide reasonable protection against harmful interference in residential installations.

If harmful interference occurs, try correcting it by:

• Reorienting or relocating the receiving antenna.
• Increasing the distance between the product and the receiver.
• Connecting the product to a different circuit.
• Consulting a dealer or qualified technician.

Product Function

The diesel heater operates independently of the original engine system, powered by a 12-24V DC source. It features two control modes: Automatic and Manual.

The heater uses light diesel fuel and operates normally at temperatures above 40°F (4°C). It heats inhaled fresh air through a heat exchanger powered by burning fuel, then blows it where needed. Key advantages include compact structure, lightweight design, high thermal efficiency, economy of electricity and fuel, and easy installation.

Benefits for vehicles include preventing damage from sudden temperature drops, improving interior temperature, preheating engine coolant to reduce wear at low temperatures, aiding car interior thawing, easier starting, and defrosting car glass.

Internal Structure

The internal components of the diesel heater include:

• Control box
• Air inlet
• Air fan
• Ignition plug
• Flame retardant impeller
• Combustion chamber
• Heating zone
• Safety plug
• Air outlet

(Diagram showing these components is present in the original document.)

Installation Position

Suggested installation positions vary by vehicle type:

Truck

1. On the co-driver's legroom.
2. On the back wall of the cab.
3. Driver's seat backrest.
4. Within the tool box.

RV

1. In front of the passenger seat.
2. Between the driver seat and passenger seat.
3. Under the container (positions 3 & 4).
4. In the trunk.

5 Seater/7 Seater Vehicles

The heater is mainly installed in the passenger room or baggage room. If not possible, fix it under the vehicle underside, being careful of splashing.

Excavator

1. Inside the driver's seat.
2. On the back wall of the cab.
3. Inside the protection box.

Garage/Warehouse Installation

1. Installed against the wall.
2. Ensure no foreign objects block the front and rear air vents.
3. Ensure no flammable materials are around the exhaust pipe.

Note: The installation of the machine requires professional personnel.

Model Specifications and Packing List

Model Comparison

Packing List

Installation Precautions

No Side Installation

Side installation can lead to oil leaks, smoke, and carbon monoxide poisoning. Ensure a 10cm space around the heater for ventilation.

Installation Inside a Building

• Indoors: Make holes in the wall for the exhaust pipe to go outdoors. Insulate the exhaust pipe as it gets very hot.
• Outdoors: Extend the exhaust pipe to prevent exhaust from being sucked back into the building, which can cause carbon monoxide poisoning.

(Diagrams showing incorrect ❌ and correct ✔️ installation directions are present in the original document.)

Power Supply Precautions

• Requirements: Voltage: 12-24V; Current: ≥ 12A. Use a direct power source or a battery.
• Battery Use: Do not charge the battery while the heater is running, as low current can cause malfunction. Ensure a firm connection; avoid using clamps that can lead to poor contact.
• Wiring: When extending the power cable, use a wire diameter greater than 2 mm². Thin wires can cause insufficient current. Use insulating tape to protect connections and prevent electrical leakage.
• Operation: Do not disconnect power at high temperatures to prevent backfire and permanent damage. If power is cut, wait for the heater's internal heat to dissipate before restarting. If restarting after a long delay post-power cut, wait for smoke to clear due to potential incomplete combustion.

Manual Fuel Pumping Before Startup

The fuel line is long. Before the initial start, manually pump oil to the fuel inlet. Failure to do so may result in a 30+ minute delay for the heater to detect fuel. Once fuel is detected, the ignition plug will ignite it.

Over-pumping: Pumping too much fuel can cause white smoke. If this occurs, detach the fuel line, turn the heater on, let it stop naturally, then restart. Repeat until no smoke is emitted. Reconnect the fuel line.

After starting, continuously blow air into the air pipe until the heater functions normally. White smoke after operation may indicate a clogged atomizing net; clean or replace it.

Fuel Type

⚠️ It is recommended to use high-grade diesel fuel. Other fuels like kerosene, vegetable oil, gasoline, or waste oil are not suitable and may cause unpleasant odors or malfunction.

Exhaust Pipe Fixture Installation

(Diagrams and steps for exhaust pipe fixture installation are present in the original document: Step 1: Drill a 70mm hole, Step 2: Secure parts, Step 3: Create dovetail joint, Step 4: Installation complete.)

General Installation Warnings

• The air inlet must not be blocked; keep it open and clear.
• Keep the exhaust pipe clear and its outlet away from flammable materials.
• To ensure optimal combustion, the smoke exhaust pipe must be placed horizontally or downward, not upward.

(Diagrams showing correct/incorrect power connections (12V >12A) are present.)

Remote Control Operation Instructions

After the machine starts and heats up (3-5 minutes), it will operate normally. There are two types of remote controllers: standard and with Bluetooth function.

Standard Remote Control (Without Bluetooth)

Run Mode Declaration

The heater has Manual and Automatic constant temperature modes. In Automatic mode, it adjusts output power based on the temperature difference. In Manual mode, power is adjustable from Level 1 to 10. In Automatic mode, temperature is adjustable from 8-36°C (46.4-96.8°F).

Instructions

• Turn ON/OFF: Press the ON/OFF key.
• Change Run Mode: Press and hold ON/OFF for >3 seconds to cycle between Manual and Automatic modes.
• Adjust Temperature Units: In Automatic mode, press UP for >3s to switch between °C and °F.
• Adjust Power/Temperature: In Manual mode, use UP/DOWN for power level. In Automatic mode, use UP/DOWN for temperature setting.
• Remote Controller Authorization: When OFF, press and hold UP for >2s until "rte" appears, then press any key. The controller will return to OFF status upon successful authorization.

Time Setting

When ON, press DOWN for >2s until "S01" appears. Use UP/DOWN to select a project (e.g., Local time S01: 12:18, Appointment time S02: 07:00, Running time S03: 05:00, Timer switch S04: t-oF/t-oN).

Edit Mode

Press ON/OFF for >2s to enter edit mode; press ON/OFF again to exit. In edit mode, data blinks. Running time range: 0.5-10 hours (0.5-hour steps). Timer switch displays t-oF (disabled) or t-oN (enabled).

Select Language

While ON, press and hold ON/OFF and DOWN for >3s to cycle through languages: "u-OF" (mute), "u-En" (English), "u-Ge" (German), "u-Ru" (Russian).

Independent Fuel Pumping Program

When OFF, power ON and press and hold DOWN for >7s until "300" appears. Release DOWN; the pump starts. The display shows remaining time in seconds. Pumping completes when time reaches "0". Press ON/OFF to stop.

Warning: Do not pump too much fuel during this program.

Fault Display

When the heater fails, a fault code and handling method are displayed:

Manufacturer and Importer Information

Manufacturer: Shanghaimuxinmuyeyouxiangongsi

Address: Baoshanqu Shuangchenglu 803long 11hao 1602A-1609shi Shanghai

Imported to AUS: SIHAO PTY LTD. 1 ROKEVA STREET, EASTWOOD NSW 2122 Australia

Imported to USA: Sanven Technology Ltd. Suite 250, 9166 Anaheim Place, Rancho Cucamonga, CA 91730

UK Representative: Pooledas Group Ltd, Unit 5 Albert Edward House, The Pavilions Preston, United Kingdom. Email: pooledas123@gmail.com, Phone: 01772418127

Germany Representative: SHUNSHUN GmbH, Römeräcker 9 Z2021, 76351 Linkenheim-Hochstetten, Germany. Email: euvertreter@gmail.com, Phone: +49 1727041930

Made In China