12
operation
10. Check fan for free rotation and check oil level in bearing housing as required
(see maintenance instructions). Start motor and check direction of rotation.
Fan must rotate clockwise when viewed from the fan discharge side. If the
rotation is incorrect, change any two of the three motor leads.
Fan Cycling Limits:
Considering the normal fan and motor sizes utilized on Aquatowers,
anticipate that approximately 4 to 5 starts per hour are allowable.
If your tower is equipped with a two-speed motor, you will enjoy greater op-
portunity for temperature control. When the water temperature becomes too
cold, switching the fan to half-speed will cause the cold water temperature
to rise—stabilizing at a temperature a few degrees higher than before. With
a further reduction in water temperature, the fan may be cycled alternately
from half-speed to off.
Do not start the motor more than four to five times per hour (each
low speed start and each high speed start count as one start).
For greater insight on cold water temperature control, please read
“Cooling Tower Energy and its Management”, Technical Report
H-001, available on our website.
Note
Note
