Question 34Refrigeration & AC - 1st Asst/Chief

The correct answer is C) high pressure water wash. A high pressure water wash is an acceptable method for cleaning a dirty condenser coil on an air-cooled container refrigeration system. This method effectively removes built-up dirt and debris from the coil without causing damage to the coil material. Using a weak acid solvent (option A) or a rotary wire brush (option B) could potentially damage the coil and is not recommended. The other options, such as using a 'Binks' gun with a weak acid solvent (option A) or a copper wire rotary brush (option B), are not recommended as they could potentially damage the condenser coil. A high pressure water wash (option C) is the safest and most effective way to clean the coil without causing any harm to the system.