In a hot water coil which of the following is not included for providing a good guideline for the correct application of the system with minimal possibility of freeze-up?
a) Positive air venting of the coil is essential
b) The air velocity should exceed 10 m/s
c) A constant flow of water should be fed to the coil
d) The water velocity should exceed 0.8 m/s
e) The water temperature should be maintained at a reasonable preset temperature
Answer: B