Atlas Copco ZT110-145 Cooler Kit Replacement – 2906040600

The 2906040600 Cooler Kit is a service/replacement kit for the cooling system of Atlas Copco ZT110–145 compressors. The cooler removes heat generated during compression, helping maintain the compressor within its required operating temperature range. Atlas Copco lists this part specifically as a ZT110-145 Cooler Kit.

Working Process

1. Air Compression – Air is compressed by the compressor element, which increases its temperature.
2. Hot-Air Flow – The heated compressed air passes through the relevant cooling stage.
3. Heat Transfer – Heat is transferred from the compressed air to the cooling medium through the cooler.
4. Temperature Reduction – The compressed air temperature is reduced.
5. Condensation Management – Cooling may cause moisture to condense, which is handled by the compressor’s drain system.
6. Cooled-Air Flow – The cooled air continues toward the next stage or downstream air system.
7. Continuous Cooling – The cooler continuously removes heat while the compressor is operating.

Main Functions

• Removes heat from the compressor air/cooling circuit.
• Maintains proper operating temperature.
• Supports efficient compressor performance.
• Helps prevent overheating.
• Maintains effective heat transfer.
• Supports reliable long-term operation.
• Provides replacement/service components for the cooler assembly.

Possible Failure Symptoms

A damaged, blocked or contaminated cooler can cause:

• High compressor temperature.
• Reduced cooling efficiency.
• High discharge-air temperature.
• Increased energy consumption.
• Temperature alarms.
• Compressor thermal shutdown.
• Reduced compressor performance.
• Cooling-medium or air leakage.

Maintenance Process

1. Shut down the compressor according to the applicable Atlas Copco service procedure.
2. Isolate the electrical supply.
3. Fully depressurize the compressor.
4. Allow the cooler to cool.
5. Isolate the applicable cooling circuit.
6. Remove the existing cooler/service components.
7. Inspect for fouling, corrosion, leakage or physical damage.
8. Clean the mating surfaces and relevant passages.
9. Install the replacement components from 2906040600.
10. Ensure all seals and connections are correctly positioned.
11. Reassemble the cooler.
12. Restore the air and cooling circuits.
13. Restart the compressor.
14. Check for leakage.
15. Monitor discharge temperature and overall cooling performance.

Technical Summary

Recommended catalog title:
Atlas Copco 2906040600 – ZT110-145 Cooler Kit for Oil-Free Compressors, 2906-0406-00.

Atlas Copco’s official listing confirms the part as “ZT110-145 COOLER KIT.”

Compatibility note: Confirm the compressor model and serial number before ordering. Atlas Copco recommends using the machine’s Spare Parts Book/Power Connect to verify the exact part for a particular machine.