Advantage Temperature Control Unit SK-620-G

Disengage operations and ensure all system pressure is relieved

Verify the unit's pressure gauges read "0"

Verify the Power light on the display is "off"

Remove the lift-off access panel and set aside

Drain machine by removing the pump casing drain plug

Disengage process operations and verify all system pressure is relieved and the unit's pressure gauges read '0'.

Disengage main power supply and verify the Power light on the display is 'off'.

Remove the lift-off access panel and set aside.

Disconnect the valve wiring harness.

Remove the AVT valve's drip cover.

Motor Driver/Gearbox Components Service

Remove the 2 mounting screws securing the motor/gearbox assembly.

Carefully separate the motor/gearbox from the attached coupling from the valve assembly.

Ensure all necessary equipment is available

Disengage process operations according to the procedure outlined in the unit manual. Ensure all system pressure is relieved and unit pressure gauges read '0'.

Remove the 'to process' temperature probe and insert a 1/2" plug in its place.

Prepare an ice bath and place a digital thermometer in it to read the temperature. Place the probe in the ice bath.

Restart the instrument according to the procedures outlined in the unit manual.

Shut down unit operations according to section 3.4 in the manual

Ensure proper lock-out procedures are followed

Confirm system pressure is eliminated and the unit's pressure gauges read '0' pressure

Drain unit by removing the pump casing drain plug

Remove the capillary connection from the cooling cylinder to the pressure switch

Remove the brass elbow mounted on the pressure switch

Remove the electrical connections to the pressure switch

Unplug the sensor probe connection

Shake out water from the service connection

Replug the sensor probe connection

Did the error display change to Solid Red?

Press the Start push button to clear the error display

Cease process operations as outlined in section 3.4 of the manual

Ensure all process pressure is relieved and pressure gauges read '0' pressure