Engine : Refrigeration AC - 256/610
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| When a thermostatic expansion valve is installed in a refrigerated container unit, the sensing bulb almost always requires insulation. Why is this so? |
| A) the insulation prevents the bulb from vibrating loose |
| B) the insulation prevents oil entrained in the suction gas from influencing the bulb temperature |
| C) the insulation prevents air stream temperatures from influencing the bulb temperature |
| D) the insulation protects the clamp and screws from corrosion |
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