What is the advantage of a case coil secondary loop system?
What will be an ideal response?
The primary refrigerant is used for cooling the glycol in the chiller and is not delivered to the individual cases. This eliminates the need for long pipe runs of refrigerant as required in multiplex direct expansion systems that considerably reduces the amount of charge required. Long refrigerant runs of multiplex systems incur large pressure drops and result in high suction gas superheat. These conditions reduce the mass flow rate of the compressors that results in loss of refrigeration capacity for multiplex systems.
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Answer the following statements true (T) or false (F)
1) Psychosomatic reaction to stress may eventually lead to autoimmune disease. 2) The effects of stress can become pathological after they exceed a person's coping limits. 3) Efforts to rid the workplace of all sources of stress are likely to fail. 4) Employees cannot be taught to adapt to stress in the workplace. 5) Three stages of human reaction to stress are: 1) alarm, 2) resistance, and 3) exhaustion.
A cat's first rabies vaccination should be given at ____________________ weeks of age
Fill in the blank(s) with correct word
Each cell of an automobile 12 volt battery can produce about ________ volts
A) 4.2 B) 4 C) 2.1 D) 1.2
A round is generally a curved outside edge.
Answer the following statement true (T) or false (F)