Cooling tower units
Cooling tower units
(OP)
We got two cooling towers with same capacity in the plant. Initial plan was to operate them independently but these towers have come with equalizers and flume lines.
Is it efficient to operate the towers independently or together as one unit? There is no float v/v and make up water connection for one tower. I can fabricate and order floating v/v from Marley though. Your help will be appreciated.
Is it efficient to operate the towers independently or together as one unit? There is no float v/v and make up water connection for one tower. I can fabricate and order floating v/v from Marley though. Your help will be appreciated.





RE: Cooling tower units
I dont know if this helps , but good luck.
RE: Cooling tower units
The variable speed would optimize your power saving. You should control fan speed to obtain the condenser water temperature that the chiller operate most efficiently. At low temperature you may need to sequence cooling tower bypass valve control after fans have indexed to minimum speed or off. The bypass diverts fully (use two position control, not modulating)the condenser water to the sump instead of to the top of the cooling tower. There should be a dead band in the bypas control. Index bypass open when water temperature drops to minimum (60°F verify with chiller manufacturer - adjustable set point). Index bypass close when water temperature has risen to say 65°F (adjustable).