Which of the following is incorrect about the reliability of NetCol5000-C row-level air conditioners?

Which of the following is incorrect about the reliability of NetCol5000-C row-level air conditioners?
A . Dual power supply, two power supplies use automatic switching mode
B . Operators, large corporate headquarters and other large data centers prefer this type of air conditioner.
C . Small and medium-sized enterprises more often use Netcp15000-A air conditioner with multiple fans for air supply: it can be maintained online.
D . It cannot be used in scenarios without raised floors because the condensate drainage cannot be connected to the pipes.

Answer: D