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Engine : Refrigeration AC - 249/610
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When replacing a thermostatic expansion valve power element, what is true concerning the thermal bulb?
A) apply a heavy coating of grease to function as a heat sink
B) apply a light film of oil to increase heat transfer
C) carefully coat the device with silicone sealant to reduce the effects of convective cooling
D) with steel wool or an abrasive cloth remove oxidation on the bulb and suction line
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