HYUNDAI Oil-free Air Compressor

Introduction

Thank you for purchasing a HYUNDAI air compressor. This manual provides safety and maintenance procedures for the HYC 14208LMS, HYC 18225LMS, and HYC 30350LMS compressors. Information is current at the time of printing, but manufacturers may make changes. Images may differ slightly from the actual product. Refer to the end of the manual for problem-solving. Read the entire manual before operation to avoid injury and equipment damage.

Notes

Manufacturing date is indicated separately or encoded in the serial number: first 2 digits are the month, followed by the year of manufacture and the individual product number. Product code prefix: HYC - manufactured under HYUNDAI license.

Product Description

HYUNDAI compressors are complex electromechanical devices designed to supply compressed air to pneumatic equipment, apparatus, and tools used in construction, industry, auto service, and other sectors.

The compressor is intended for use with compressed air only. It cannot be used for other gases.

Do not use in explosive or fire-hazardous areas or under atmospheric precipitation. Read the instructions carefully before operation.

Only trained personnel who have read the operating instructions may operate and service the compressor. Repairs must be performed by qualified specialists at authorized service centers.

This equipment is not intended for professional use. If used for professional purposes, the warranty period is 3 months. See warranty card for details.

This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless supervised or instructed by a person responsible for their safety. Children should be supervised to prevent them from playing with the appliance.

HYC 14208LMS, HYC 18225LMS, HYC 30350LMS models feature automatic operation for extended use. The compressor automatically shuts off at 8 atm pressure, unloading the cylinders. A pressure relief valve is provided for easier starting, remaining open for 1-2 seconds after the engine starts.

These models are oil-free compressors. The key difference from oil compressors is the absence of oil in the crankcase and friction surfaces of the cylinder block, ensuring clean output air. They also offer quiet operation and high productivity.

The maximum duration of one operating cycle should not exceed 15-20 minutes. This cycle should not occur more than once per hour.

Receiver pressure regulation is automatic. Using compressed air for various purposes (inflation, powering tools, etc.) requires knowledge of safety standards for each specific case. HYUNDAI compressor use is strictly limited to compressing air.

Technical Specifications

Package Contents

• Compressor - 1 pc.
• Air filter - 1 pc.
• Transport wheels - 2 pcs. (for HYC 18225LMS and HYC 30350LMS models).
• User manual - 1 pc.
• Packaging - 1 pc.

ATTENTION: Due to continuous design improvements, the unit may have changes in design and technical specifications without prior user notification.

General View of the Product

Figure 1 shows the HYC 14208LMS model.

Key:

• 1. On/Off switch
• 2. Outlet connector with valve
• 3. Output pressure gauge
• 4. Output pressure regulator
• 5. Receiver pressure gauge
• 6. Condensate drain valve

Figure 2 shows the HYC 18225LMS model. Key: (Same as Figure 1)

Figure 3 shows the HYC 30350LMS model. Key: (Same as Figure 1)

Description of Symbols

• ?: Read the manual carefully before operation.
• ⚠️: Do not exceed the maximum allowed pressure.
• ❗: Attention! Observe safety precautions when working with the device.
• ?: Do not touch hot surfaces until they have cooled down.

Safety Information

General Safety Precautions

Before operating the compressor, the user must familiarize themselves with its functions and controls. Read the operating instructions carefully and keep them for future reference.

• Only qualified and trained personnel familiar with these instructions, the device, and operating rules may use and service HYUNDAI compressors.
• The compressor must operate in well-ventilated areas at temperatures between +5°C and +40°C.
• If ambient air temperature exceeds 30°C, it is recommended to draw air from outside the room or take special measures to reduce the ambient air temperature for the compressor.
• During operation, the operator must wear safety glasses to protect eyes from foreign particles carried by the air stream.
• The air drawn by the compressor must not contain dust, vapors of any kind, explosive or flammable gases, atomized solvents or paints, or toxic fumes of any type.
• Always turn off the compressor using the switch located on the pressure switch. To prevent the compressor from starting with high pressure in the head, never turn it off by simply unplugging it.
• When moving the compressor, pull it only by the designated handle on the receiver.
• Compressed air is an energy flow and is therefore potentially dangerous. Air lines must be in good condition and properly connected. Before pressurizing flexible hoses, ensure their ends are securely fastened.
• Disposal of used condensate must comply with relevant regional regulations, as these products pollute the environment.

Electrical Safety

• The compressor's power plug must match the power outlet. Do not modify the plug. This reduces the risk of electric shock.
• Avoid contact with grounded surfaces such as pipes, heating elements, etc. Grounding through these increases the risk of electric shock.
• Protect the compressor from rain and moisture. Water ingress into the electrical appliance increases the risk of electric shock.
• Do not use the power cord for purposes other than its intended use, e.g., for carrying or hanging the compressor, or for pulling the plug from the socket.
• Protect the cord from high temperatures, oil, sharp edges, or moving compressor parts. A damaged or tangled cord increases the risk of electric shock.
• Before starting work, check the compressor and power cable for damage.
• When working outdoors, use only an approved extension cord.
• If performing outdoor work, the socket should be equipped with a fuse or circuit breaker.
• Extension cord length should not exceed 5 meters, and its cross-section must match the compressor's cable cross-section.
• If you are not using the compressor, unplug it from the socket.

People Safety

• Do not use the compressor when tired, under the influence of narcotics or alcohol, or medication. Inattentiveness can lead to serious injury.
• Do not use the compressor if the switch is faulty.
• Safe distance from a working compressor is at least 3 meters. If paint spray from the compressor hits the protective cover, the compressor is too close to the work area.
• Do not operate the compressor near explosive liquids, gases, or other substances. The equipment can be a source of sparks, which can cause ignition. Do not smoke while spraying.
• Do not start operation until the work area is cleared of foreign objects.
• Store the compressor in places inaccessible to children.

Preparation for Operation

Before starting work, check:

• Correct power connection.
• Secure fastening of wheels and compressor feet.
• Integrity and operability of the safety valve and controls.
• Absence of cord contact with hot surfaces of the compressor.

Hazard of Injury!

Prohibited Actions:

• Operating the compressor with faulty or disconnected protection.
• Making any changes to the electrical or pneumatic circuits of the compressor or their adjustment. Specifically, changing the maximum compressed air pressure setting and the safety valve setting.
• Mechanically processing or welding the receiver. If defects or corrosion are found, the receiver must be completely replaced as it is subject to special safety regulations.
• Touching parts that become very hot during operation (cylinder head and block, cooler, discharge air lines, motor cooling fins).
• Touching the compressor with wet hands or working in wet footwear.
• Directing the compressed air stream at yourself, people nearby, animals, or the compressor itself.
• Allowing children or animals into the work area.
• Performing painting operations in unventilated areas or near open flames.
• Storing kerosene, gasoline, or other flammable liquids where the compressor is installed.
• Leaving the compressor plugged in unattended.
• Performing repairs on a compressor connected to the power supply and without relieving pressure in the receiver.
• Transporting the compressor under pressure.

Product Assembly

Attach the transport wheels to the compressor. (See Fig. 4).

Connect the air filter housing A with the filter element to the compressor head housing. (See Fig. 5).

Figure 4: Shows the attachment of transport wheels.

Figure 5: Shows the connection of the air filter housing.

Operating the Device

Install the compressor for operation on a stable surface.

To ensure normal inflow of cooling air to the operating compressor, do not place it closer than 50 cm to a wall.

Before starting, open the drain valve under the receiver, drain any condensate, then close the drain valve.

Securely connect the compressor to compressed air consumers using appropriate pneumatic fittings and hoses.

Set the switch on the pressure switch to the 'ON' position (See Fig. 6, item 1). For the first startup or after a long break, let the compressor run for 10 minutes at idle. This is necessary for lubrication of all essential compressor components.

Figure 6: Shows the pressure switch.

Principle of Operation of the HYUNDAI Air Compressor

After setting the pressure switch to the 'ON' position, the compressor starts, pumping air into the receiver via the discharge pipe.

When the preset upper pressure level (set by the manufacturer) is reached, the compressor stops, releasing excess air from the head and discharge pipe through the relief valve located under the pressure switch.

Since there is no excess pressure in the head, the load on the motor is reduced during the next start.

As air is consumed, the pressure in the receiver drops. When it reaches the preset lower level (a difference of 2 bar between upper and lower levels), the compressor automatically turns on.

Receiver pressure can be checked using the pressure gauge (See Figs. 1, 2, 3, position 5).

The compressor operates automatically until the switch on the pressure switch is moved to the 'OFF' position.

Wait at least 10 seconds before restarting the compressor after it has stopped.

Attention! The manufacturer has set the optimal pressure for safe operation.

It is strictly forbidden to change factory settings!

Attention! Starting and stopping the compressor must be done using the start button on the pressure switch only!

To stop the compressor, press the start button on the pressure switch again (return it to the upper position) and only then unplug the power cable from the socket.

ATTENTION

After finishing work, completely release the compressed air from the receiver. The compressor should be run-in under operating conditions for the first 10 hours. During run-in, the compressor should operate under a reduced load of no more than 70% of its maximum engine load.

Technical Maintenance

To ensure long and reliable operation of the compressor, perform the following maintenance tasks:

Before Each Use:

• Drain moisture from the air receiver.
• Check for air leaks.

Weekly:

• Check and clean the air filter, or replace if necessary.
• Check inlet and outlet pressure for correct operation.

Monthly:

• Check the receiver's overpressure safety valve, clean or replace if necessary.

Every Three Months:

• Tighten cylinder head bolts to restore torque.
• Clean and inspect the valve block, replace gaskets/valves if worn or damaged.

Depending on operating conditions, but at least once a month, clean the air filter by blowing compressed air through the cartridge and filter element. It is recommended to replace the air filter cartridge or filter element at least once a year if the compressor operates in a clean environment, and more often if the environment is dusty. Reduced air filter capacity shortens compressor life and can lead to failure.

• Periodically check the secure fastening of the piston block and motor to the platform, and the platform to the receiver.
• Periodically check the integrity and secure fastening of control elements, gauges, cables, and air ducts.
• Periodically clean all external surfaces of the compressor and motor to improve cooling.

HYUNDAI compressors are certified and comply with the requirements of TR CU 004/2011 "On safety of low-voltage equipment"; TR CU 010/2011 "On safety of machinery and equipment"; TR CU 020/2011 "Electromagnetic compatibility of technical means".

The use, maintenance, and storage of the HYUNDAI compressor must be carried out precisely as described in this operating manual.

Before performing any maintenance work, ensure the compressor is disconnected from the power supply. Regularly perform maintenance tasks as described in the operating manual.

• We recommend using only original spare parts.
• To ensure reliable operation, tighten all nuts, bolts, and screws firmly.
• For safety reasons, promptly replace worn or damaged parts.
• After each use, remove dirt from the compressor. Use a damp cloth to clean the housing. Do not use solvents or sharp objects.
• Before long-term storage, apply grease to all metal parts to prevent corrosion.

Troubleshooting

*It is recommended to contact an authorized service center. **ATTENTION!!!** Intervals between checks and maintenance are reduced when operating in dusty conditions. Failure to adhere to maintenance periodicity may lead to breakdown, which will not be covered by warranty.

Storage and Transport

Storage

The storage area must be dry and dust-free. Ambient temperature from +5°C to +35°C and relative humidity not exceeding 80%. Store the device in a place inaccessible to children. Any malfunctions should be rectified before storing the machine to ensure it is always ready for operation. Before long-term storage and conservation, drain all working fluids and condensate.

Transport

The device must be transported in the position indicated on the box. During loading and unloading, do not subject the device to impact loads. The device must be securely fastened to prevent movement within the transport vehicle.

Device Disposal

The device, operating manual, and all accessories should be stored for the entire period of operation. Free access to all parts and all necessary information must be ensured for all users of the device.

This device and its components are made from materials and substances that are safe for the environment and human health.

However, to prevent negative environmental impact, upon termination of the device's use, or at the end of its service life, or if it becomes unsuitable for further operation, the device must be handed over to collection points for scrap metal and plastic recycling.

Disposal of the device and its components involves its complete disassembly and subsequent sorting by material type for remelting or secondary processing.

At the end of its service life, the device must be disposed of in accordance with the norms, rules, and methods applicable in the place of disposal of household appliances.

Device disposal must be carried out without causing environmental damage, in accordance with the norms and rules applicable in the territory of the Customs Union.

Warranty Obligations

Dear Customer! Warranty conditions are listed in the product's warranty card.

The period of free warranty repair is valid for 1 year, provided the instructions in this manual are followed.

Warranty does not cover consumables. Consumables are replaced and purchased at the user's expense.

When handing over the unit to a service center, the unit must be cleaned of foreign contaminants.

• 1. The manufacturer guarantees reliable and trouble-free operation of the compressor, provided it is properly maintained in accordance with the operating requirements set forth in this manual.
• 2. The warranty period for the product is 12 months from the date of sale. Service life is 5 years.
• 3. In case of compressor malfunction within the warranty period, the owner is entitled to free repair of the failed compressor, unless the following are noted:
  • Analysis of submitted documents reveals deviations from required completion standards (warranty card is incorrectly filled, information about the instrument in the documents does not match actual data, documents show signs of secondary filling, warranty service obligations have expired, etc.). Attempted unauthorized disassembly of the compressor without proper grounds specified in its passport is noted; seals on screw heads are violated, traces of disassembly are present on the housing (while the warranty card does not have a mark from the Service Center or its authorized representatives about performed maintenance).
  • The compressor malfunction resulted from exposure to high or low temperatures, ingress of foreign objects, liquids, severe contamination, or force majeure circumstances.
  • The product was operated without proper care.
  • Requirements and recommendations of the Operating Manual were violated during operation.
  • Operator inattentiveness or negligence, missing initial signs of defects (possibly manufacturing-related), led to the need for complex repairs.
  • The product presented for repair has naturally worn parts (seals, gaskets).
• 4. Warranty does not cover easily worn parts and components, replaceable and removable accessories, if they show signs of use (belts, filters).
• 5. Incomplete product комплектация, which could have been identified at the point of sale, is not covered by warranty.
• 6. Claims from third parties are not accepted.
• 7. Compressor maintenance, scheduled work, adjustments, and testing are not covered by warranty obligations.
• 8. Addresses and operating hours of authorized service centers can be found on the website: https://hyundaipower-belarus.com/

For Notes

Contact Information

Importer in Belarus: LLC "ElandBellmport", 220053, Minsk, st. Budslavskaya, 23/1, room 2, info@eland.by

Imported/Distributed by LLC ElandBellmport, Belarus. Licensed by Hyundai Corporation Holdings, Korea.