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Which of the installation steps listed is necessary for the proper operation of the thermostatic expansion valve?
A) Remove excess lengths of the sensing bulb capillary tube from the device to increase sensitivity.
B) Attach the thermal bulb to the suction line using plastic ties.
C) Clean off oxidation from the surface of the suction line and sensing bulb with fine abrasive cloth or steel wool.
D) Heat shrink insulating material around the device once the bulb has been properly secured.
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