Question 146Refrigeration & AC - 1st Asst/Chief

The correct answer is D) admit only enough fresh outside air to provide proper ventilation. The key to preventing unnecessary loading of the air conditioning system is to only bring in the minimum amount of fresh outside air required for proper ventilation. This helps maintain the designed dry bulb temperature and relative humidity without overtaxing the system. The other options would not directly address the goal of minimizing fresh air intake while still providing adequate ventilation. Reducing air reheating (A) or lowering compressor head pressure (B) would not necessarily reduce the fresh air intake. Operating the purge recovery unit continuously (C) is not directly related to fresh air intake control.