Question 147Refrigeration/AC - 1st Asst/Chief70% to pass
Concerning the arrangement of equipment and associated hoses shown in the illustration, which statement is true? Illustration GS-RA-59
AI Explanation
The correct answer is B.
When recovering refrigerant from a centrifugal chiller using the method shown in the illustration GS-RA-59, it is possible to achieve the recovery levels required by law without any further recovery. This is because the illustration depicts a closed-loop recovery system, where the refrigerant is recovered as a vapor and contained in a dedicated recovery tank. This allows for the complete removal of the refrigerant charge from the chiller, meeting the regulatory requirements for refrigerant recovery.
The other options are incorrect:
A) The entire charge may not be removed in one procedure, as the recovery process may need to be performed in multiple stages to ensure complete removal of the refrigerant.
C) The containment tank should not be vented back to the chiller evaporator shell, as this would compromise the closed-loop recovery system and potentially release refrigerant to the atmosphere.
D) The refrigerant is being recovered as a vapor, not a liquid, as indicated by the closed-loop recovery system design.
Related Questions
#145 A room humidistat initiates the lowering of the humidity of the conditioned supply air to a space, while the actual process is accomplished by what means? #146 To prevent the unnecessary loading of an air conditioning system while maintaining the designed dry bulb temperature and relative humidity in an air conditioning system, what should be done? #148 Which of the following methods is normally used to control the circulated air temperature of an air conditioning system using chilled water circulation? #149 The introduction of outside air to the air conditioning system is 90°F with a relative humidity of 60%. The air has been conditioned to 70°F with a relative humidity of 80%. Using the psychrometric chart, shown in the illustration, determine the quantity of moisture removed from one pound of the conditioned air. Illustration GS-RA-22 #150 In an air conditioning system, moisture is removed from the air by what means?