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Cleaning and Maintenance
The cooling assembly should be cleaned once every two months to insure optimal
performance.
Flushing the System
1. Open the door and remove the heat transfer fluid bottle.
2. Empty the contents and fill the bottle halfway with a solution of 1:5 bleach in distilled
water.
3. Replace the bottle and insert only the tube with the filter [A]. Completely immerse the
filter in the fluid.
4. Insert the return tube [B] into another container.
B
A
5. If there is a Supervisor/Operator keyswitch, turn it to the Supervisor position.
6. Press TEST to enter the test menu.
7. Press < or > to select Head Up Down Test and press START.
Draining the System
1. Turn off the power, unplug the instrument, and remove the cover.
2. Remove the heat transfer fluid bottle and empty the contents.
3. Replace the empty bottle and insert the tubes.
4. Press gently on the pump on the chassis behind the cooling chamber..
5. Repeat until all of the liquid has been expelled (the unit may need to be tipped on its
side to remove the liquid).
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