Question 17Refrigeration & AC - 1st Asst/Chief
70% to passThe rupture disc on a low pressure centrifugal refrigeration unit is used as an over pressure protection device and is set to relieve at 15 psig and is most likely to lift when the compressor is idle? Where is the rupture disc located?
Aon top of the condenser shell
Bat the top of the upper chamber of the economizer
Cat the discharge of the compressor
Don top of chiller evaporator shell
AI Explanation
The correct answer is D) on top of the chiller evaporator shell. The rupture disc is located on top of the chiller evaporator shell because this is the most likely location for over-pressure to occur. When the compressor is idle, the refrigerant in the evaporator can expand and create excessive pressure. The rupture disc is designed to release this pressure and prevent damage to the system. The other options are incorrect because they are not the primary locations for over-pressure protection in a low-pressure centrifugal refrigeration unit.
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