Introduction
This manual provides essential information for the safe and efficient operation, setup, maintenance, and troubleshooting of your ABAC Monte Carlo OSS 20P Air Compressor. Please read these instructions carefully before using the compressor to ensure proper function and to prevent injury or damage.
The ABAC Monte Carlo OSS 20P is an oil-free, soundproof air compressor designed for both DIY and professional applications. It features a 2 HP motor, a 50-liter tank capacity, and delivers an air flow of 222 liters per minute at a maximum pressure of 10 bar. Its low noise level of 72 dBa makes it suitable for various environments.

Image 1: ABAC Monte Carlo OSS 20P Air Compressor, showing its blue tank, black motor housing, wheels, and pressure gauges.
Safety Instructions
Always observe the following safety precautions to reduce the risk of electric shock, fire, or serious injury.
- Electrical Safety: Ensure the compressor is connected to a properly grounded outlet with the correct voltage (230 Volts). Do not use extension cords unless absolutely necessary and ensure they are rated for the compressor's power requirements.
- Pressure Safety: Never exceed the maximum operating pressure of the compressor or the tools connected to it. Do not tamper with the safety valve. Always drain condensation from the tank regularly to prevent corrosion and maintain tank integrity.
- Personal Protective Equipment (PPE): Wear appropriate eye protection (safety glasses) and hearing protection (earplugs or earmuffs) when operating the compressor.
- Ventilation: Operate the compressor in a well-ventilated area to prevent overheating and ensure proper air intake.
- Stability: Place the compressor on a stable, level surface to prevent tipping during operation.
- Children and Bystanders: Keep children and bystanders away from the operating compressor.
- Maintenance: Disconnect the compressor from the power supply and release all air pressure before performing any maintenance or adjustments.

Image 2: Electrical Hazard Symbol, indicating a warning about potential electrical shock.
Setup
- Unpacking: Carefully remove the compressor from its packaging. Inspect for any shipping damage. Report any damage to your supplier immediately.
- Placement: Position the compressor on a firm, level surface in a clean, well-ventilated area. Ensure there is adequate space around the unit for air circulation.
- Wheel Assembly (if not pre-assembled): Attach the wheels and handle according to the diagrams in the separate assembly guide (if provided). Ensure all fasteners are securely tightened.
- Electrical Connection: Connect the power cord to a grounded 230V, single-phase electrical outlet. Verify that the power supply matches the specifications on the compressor's data plate.
- Initial Check: Before first use, ensure all connections are secure and the drain valve at the bottom of the tank is closed.
Operating Instructions
- Starting the Compressor: Plug the compressor into the power outlet. Turn the power switch to the "ON" position. The compressor will start to build pressure.
- Monitoring Pressure: Observe the pressure gauges. One gauge shows the tank pressure, and the other shows the regulated outlet pressure. The compressor will automatically shut off when the maximum tank pressure is reached and restart when the pressure drops.
- Adjusting Outlet Pressure: Use the pressure regulator knob to set the desired working pressure for your air tools. Turn clockwise to increase pressure, counter-clockwise to decrease.
- Connecting Air Tools: Attach your air hose to the quick-connect coupler on the compressor. Connect your air tool to the other end of the hose.
- Shutting Down: When finished, turn the power switch to the "OFF" position. Disconnect air tools and hoses. Slowly open the drain valve at the bottom of the tank to release all remaining air pressure.
Maintenance
Regular maintenance ensures the longevity and optimal performance of your compressor. Always disconnect power and release all air pressure before performing maintenance.
- Drain Condensation (Daily/After Each Use): Open the drain valve located at the bottom of the air tank to release accumulated moisture. This prevents rust and extends tank life. Close the valve securely after draining.
- Clean Exterior (Regularly): Wipe down the compressor's exterior with a damp cloth to remove dust and debris. Do not use harsh chemicals or abrasive cleaners.
- Air Filter Inspection (Monthly): Check the air intake filter for dirt and blockages. Clean or replace the filter as necessary to ensure proper air intake and prevent motor strain.
- Oil-Free Design: This compressor features an oil-free pump, eliminating the need for oil changes or oil level checks.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Compressor does not start. | No power, tripped circuit breaker, faulty switch. | Check power connection, reset circuit breaker, contact service if switch is faulty. |
| Compressor runs continuously or frequently. | Air leak in tank or hose, faulty pressure switch. | Check all connections for leaks, tighten fittings. If problem persists, contact service. |
| Low air pressure at outlet. | Regulator set too low, air leak, clogged air filter. | Adjust regulator, check for leaks, clean/replace air filter. |
| Excessive noise or vibration. | Loose components, compressor not on level surface. | Check and tighten all visible fasteners. Ensure compressor is on a stable, level surface. |
Specifications
| Feature | Value |
|---|---|
| Model Number | Monte Carlo OSS 20P 1129741059 |
| Brand | ABAC |
| Motor Power | 2 HP |
| Compressor Type | Soundproof, Oil-free |
| Tank Capacity | 50 Liters |
| Air Flow (Delivery) | 222 Liters/minute |
| Maximum Pressure | 10 bar |
| Voltage | 230 Volts |
| Phase | Single-phase |
| Noise Level | 72 dBa |
| Item Weight | 33.7 Kilograms |
Warranty and Support
For warranty information and customer support, please refer to the documentation provided with your purchase or contact your retailer.
Spare Parts Availability: Information regarding spare parts availability is currently unavailable. Please contact your supplier for further details.
Regulatory Contact Details (GPSR):
- Legal Name: AIRE COMPRIMIDO INDUSTRIAL IBERIA S.L.
- Contact: SILVIA CLEMENTE - COMERCIAL
- Address: C/ LAS ARENAS, 6 POL. IND. LAS ARENAS – 28320 – PINTO (ESPAÑA)
- Phone: 0034938.225.180
- Email: silvia.clemente@es.airmbc.com

Image 3: Product label showing batch number, expiration date, CE mark, legal name, origin, and GPSR contact details.





