Waters ACQUITY UPLC Operator's, Overview And Maintenance Manual page 122

13. Insert the tab on the left-hand side of the column heater into the slot on
the left-hand side of the instrument chassis.
14. Hold the left-hand side of the column heater into the slot, and guide the
eCord receptacle tab on the right-hand side into the cutout in the
instrument chassis.
15. Install and tighten the TORX screw located behind the eCord receptacle.
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Tab
Slot
Tab
Cutout