Atlas Copco GA90/110 W Cooler Kit Replacement – 2906096600

The Atlas Copco 2906096600 is a cooler service kit used in the cooling system of GA90/110 water-cooled compressors. It contains replacement sealing components required when servicing the cooler, helping maintain proper separation and sealing between the cooling and compressor circuits.

Working Process

1. Compression – Air compression generates significant heat inside the compressor element.
2. Oil Circulation – Compressor oil absorbs heat generated during compression.
3. Heat Transfer – The heated oil passes through the cooler.
4. Water Cooling – Cooling water removes heat from the oil through the cooler.
5. Temperature Control – The cooled oil returns to the compressor at the required operating temperature.
6. Sealing – O-rings, gaskets and sealing washers maintain leak-tight cooler connections.
7. Wear During Operation – Sealing components can deteriorate because of temperature, pressure and operating hours.
8. Cooler Service – During maintenance, worn seals and related components are replaced using 2906096600.
9. Testing – After reassembly, the cooler is checked for oil/water leakage and proper temperature control.

Kit Components

The GA90/110 W parts list identifies the following components within 2906 0966 00:

Main Functions

• Supports GA90/110 W cooler maintenance.
• Replaces cooler sealing components.
• Helps prevent oil and cooling-water leakage.
• Maintains proper separation between cooling circuits.
• Supports effective heat transfer.
• Helps maintain correct compressor operating temperature.
• Restores cooler sealing performance after servicing.

Possible Failure Symptoms

A deteriorated cooler or its seals may result in:

• Increased oil temperature.
• High compressor temperature.
• Oil or water leakage.
• Reduced cooling efficiency.
• Temperature alarms.
• Contamination between cooling circuits.
• Reduced compressor performance.

Maintenance Procedure

1. Shut down the compressor according to the applicable Atlas Copco service procedure.
2. Isolate and lock out the electrical supply.
3. Allow the compressor to cool.
4. Depressurize the air/oil system.
5. Isolate and drain the applicable cooling-water circuit.
6. Access and disconnect the cooler.
7. Inspect cooler surfaces and connections.
8. Remove old O-rings, gaskets and sealing washers.
9. Clean all mating surfaces.
10. Install the replacement components from 2906096600.
11. Ensure every O-ring and gasket is correctly seated.
12. Reassemble the cooler.
13. Restore the oil and cooling-water circuits.
14. Pressurize the system gradually.
15. Check for oil/water leakage.
16. Restart the compressor.
17. Monitor oil temperature and cooling-water performance.
18. Confirm normal compressor operation.

Technical Summary

Recommended catalog title:
Atlas Copco 2906096600 – GA90/110 W Cooler Kit, 2906-0966-00.

The part number is confirmed in Atlas Copco GA parts documentation as “GA90/110 W COOLER KIT” and is also listed by parts suppliers under the same description.

Note: Do not confuse 2906096600 with 2906096700, which is the related GA132/160 W cooler kit.