Kaeser Refrigerated Dryer TG 650

Ensure all necessary tools and replacement parts are available

Is the equipment powered down and locked out?

Replacement of Plastic Pipes and Hose Lines

Was the plastic pipe replaced successfully?

Was the hose line replaced successfully?

Verify the following after replacement

Is the system operating normally after replacement?

Ensure the power supply disconnecting device is switched off

Verify the absence of any voltage

Check the condenser for visible leaks

Have an authorized KAESER service representative check the condenser for internal leaks

Monitor the condensation temperature

Have all pressurized components and enclosures been fully vented?

Close the shut-off valve 9 upstream of the condensate drain.

Unscrew the fitting 6 at the condensate line.

Press the snap fastener and carefully remove the control module 2 from the service unit 1.

Carefully loosen the union nut 13 at the shut-off valve 9 until remaining residual air has escaped through the venting bores.

Unscrew the screw-in part 11 from the service unit 1 and place aside.

Remove the insulation 14 from the service unit 1.

Ensure the power supply disconnecting device is switched off

Option K1: Air-cooling maintenance

Use compressed air to blow the refrigerant condenser clean at regular intervals

Is there stubborn clogging that needs removal by an authorized KAESER service representative?

Option K2: Water-cooling maintenance

Lightly touch the condensate line at the condensate drain

Push and hold the «TEST» key at the condensate drain for at least 2 seconds

Did you feel a short burst at the condensate line?

Replace the service unit if no burst is felt during manual test