Kaeser Refrigerated Dryer TG 780

Ensure the user's power supply disconnecting device is switched on

Verify the machine is pressurized

Check that the Power LED is lit

Lightly touch the condensate line at the condensate drain with one hand

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

Did you feel a short burst at the condensate line?

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

Was stubborn clogging removed by an authorized KAESER service representative?

Option K2: Water-cooling maintenance

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 all necessary tools and replacement parts are available

Is the equipment powered down and locked out?

Plastic Pipe and Hose Line Replacement

Remove old plastic pipes and hose lines

Install new plastic pipes and hose lines

Verify the following connections are secure

Conduct a pressure test to ensure no leaks are present

Ensure the power supply disconnecting device is switched off

Verify the absence of any voltage

Monitor Condensation Temperature

Record the current condensation temperature

Is the condensation temperature within the normal range?

Check for Leaks and Contamination

Check the condenser for visible leaks