Engine : Refrigeration AC - 68/610
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| When replacing a thermostatic expansion valve power element, what is true concerning the thermal bulb? |
| A) with steel wool or an abrasive cloth remove oxidation on the bulb and suction line |
| B) carefully coat the device with silicone sealant to reduce the effects of convective cooling |
| C) apply a heavy coating of grease to function as a heat sink |
| D) apply a light film of oil to increase heat transfer |
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