Engine : Refrigeration AC - 475/610
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| The thermostatic expansion valve in a refrigeration system further opens when the diaphragm flexes downward. With all other conditions being the same, what single condition causes this? |
| A) an increase in sensing bulb temperature |
| B) an increase in the evaporator pressure |
| C) a decrease in sensing bulb temperature |
| D) increasing the superheat setting of the valve |
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