Atlas Copco Oil Cooler Kit Replacement – 2901009700

Atlas Copco 2901009700 – Oil Cooler Kit

The Atlas Copco 2901009700 (2901-0097-00) is an Oil Cooler Kit designed for use in compatible Atlas Copco oil-injected compressor systems.

The oil cooler is an important part of the compressor lubrication and temperature-control system. During compression, the injected compressor oil absorbs a significant amount of heat generated by the compression process. The oil cooler removes this accumulated heat before the oil is returned to the compressor element.

Maintaining the correct oil temperature is essential for proper lubrication, cooling and sealing of the compressor element.

Working Process:

During compressor operation, lubricating oil is circulated through the compressor element.

The oil performs several functions simultaneously. It lubricates the moving components, absorbs heat generated during compression and assists in sealing the clearance between the screw rotors.

As the oil absorbs heat, its temperature increases.

The hot oil then travels through the compressor oil circuit toward the oil cooler.

Inside the oil cooler, heat is transferred from the hot compressor oil to the cooling medium, normally cooling air or another designated cooling medium depending on the compressor configuration.

As heat is removed, the oil temperature decreases.

The cooled oil then returns through the oil circuit toward the compressor element.

This continuous circulation maintains the oil within the required operating-temperature range.

Main Functions:

• Removes excess heat from compressor oil.
• Helps maintain correct oil operating temperature.
• Supports effective lubrication.
• Helps maintain oil viscosity.
• Assists in cooling the compressor element.
• Supports rotor sealing during compression.
• Helps prevent excessive oil-temperature rise.
• Contributes to reliable compressor operation.
• Helps maintain stable compressor performance.

Oil-Cooling Cycle:

1. Oil Injection: Oil is injected into the compressor element.
2. Lubrication: Oil lubricates the moving compressor components.
3. Heat Absorption: Oil absorbs heat generated during compression.
4. Hot-Oil Flow: Heated oil leaves the compressor element.
5. Oil Cooling: The hot oil passes through the oil cooler.
6. Heat Transfer: Heat moves from the oil to the cooling medium.
7. Temperature Reduction: The oil temperature decreases.
8. Return Flow: Cooled oil returns through the compressor oil circuit.
9. Re-entry: The cooled oil is available for continued lubrication, cooling and sealing.
10. Continuous Operation: The cycle repeats while the compressor is operating.

Importance of the Oil Cooler:

Oil temperature has a direct influence on compressor reliability.

If oil temperature becomes excessively high, the oil may deteriorate more rapidly and its lubrication performance can decrease.

Excessive temperature can also increase thermal stress on compressor components.

If the oil cooler becomes restricted or its heat-transfer efficiency decreases, the compressor may experience elevated oil temperature.

A correctly functioning 2901009700 oil cooler kit helps maintain effective heat removal from the compressor oil circuit.

Possible Failure Conditions:

An oil cooler or its associated components can deteriorate because of:

• Dust and dirt accumulation.
• Restricted cooling airflow.
• Oil-side contamination.
• Blocked passages.
• Corrosion.
• Damaged sealing components.
• Mechanical damage.
• Reduced heat-transfer efficiency.
• Leakage.

Possible compressor symptoms include:

• High oil temperature.
• Increased compressor discharge temperature.
• Frequent high-temperature alarms.
• Reduced cooling performance.
• Increased oil degradation.
• Increased oil consumption.
• Compressor thermal shutdown.
• Reduced compressor efficiency.

These symptoms should be diagnosed carefully because high oil temperature can also be caused by insufficient ventilation, a dirty air/oil cooler, incorrect oil level, thermostat problems, cooling-fan problems or other oil-circuit restrictions.

Maintenance Procedure:

Before servicing the oil cooler, stop the compressor, isolate the electrical supply and depressurize the compressor according to the applicable Atlas Copco safety procedure.

Allow the compressor and oil to cool to a safe working temperature.

Inspect the cooler and surrounding oil circuit for:

• Oil leakage
• Dirt accumulation
• Corrosion
• Damaged connections
• Restricted passages
• Damaged sealing surfaces
• Mechanical damage
• Reduced cooling performance

If the cooler assembly is opened or serviced, replace applicable seals and service components rather than reusing damaged or deteriorated sealing elements.

Clean the relevant mating surfaces and cooler passages according to the applicable maintenance procedure.

Install the 2901009700 Oil Cooler Kit correctly and ensure that all connections are properly secured.

After installation:

• Check oil level.
• Check all connections.
• Check for oil leakage.
• Verify unobstructed cooling airflow.
• Ensure the cooler is correctly positioned.
• Confirm that no foreign material remains in the oil circuit.

Restart the compressor and allow it to reach normal operating conditions.

Monitor:

• Oil temperature
• Discharge temperature
• Compressor pressure
• Cooling performance
• Oil leakage
• Abnormal noise
• Overall operating stability

The oil temperature should remain within the manufacturer’s specified operating range.

Service Benefits:

Using the Atlas Copco 2901009700 Oil Cooler Kit during appropriate maintenance helps:

• Restore effective oil cooling.
• Maintain correct oil temperature.
• Support proper lubrication.
• Reduce thermal stress.
• Reduce oil degradation.
• Maintain compressor efficiency.
• Protect the compressor element.
• Reduce the risk of overheating.
• Support reliable long-term compressor operation.

Part Number: 2901009700
Alternative Number: 2901-0097-00 / 2901 0097 00
Brand: Atlas Copco
Description: Oil Cooler Kit / Cooler Kit
Component Type: Compressor oil-cooling service component
Primary Function: Removes heat from circulating compressor oil
Secondary Functions: Supports lubrication, cooling and rotor sealing
Operating Function: Transfers heat from hot compressor oil to the cooling medium before returning the oil to the compressor element
Main Benefits: Controlled oil temperature, effective lubrication, reduced overheating risk, improved compressor reliability and stable operating performance.

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