REYMSA COOLING TOWERS, INC.
www.reymsa.com
The
All-Fiberglass
Cooling Towers
55
Start-Up
B.3 PUMP
A. Before starting the pump(s), ensure that the suction piping is completely full of water.
B. Open inlet water valve to approximately 30% and start one pump.
C. Allow system to operate until the float valve closes to allow the make-up water to replenish the water
removed from the basin by the pump.
D. If the pump surges, shut off the pump, close the make-up valve, and adjust the float valve to a higher
setting. Repeat Steps A and B.
E. Open the make-up valve to the full open position.
F. Verify the operating level in basin to be in range, after the system has equalized.
G. If there are more than one pump, start remaining pumps one at a time by repeating steps D and E.
H. If the basin overflows, close the make-up valve, lower the float valve setting, and repeat Steps A to F.
In case of experiencing problems with the pump(s), refer to Pump’s IOM manual.
B.4. GEAR REDUCER
A. Check all fittings on the gear reducer to ensure that there are no visible leaks.
B. Make sure that the gear reducer is filled with the proper amount and type of lubricant.
C. The initial oil level should be to the middle of the oil level sight gauge and should be maintained so that
the oil level is always visible in the sight gauge window when the unit is stationary, level, and the oil is at
ambient temperature.
D. If shimming is required, take precautions to prevent distortion of the housing. Align driver and gear
reducer to obtain parallel and angular alignment. Recheck alignment after two weeks of operation.
E. For VFD see section “C.1 FAN CONTROL - VFD“.
F. For gear reducer maintenance refer to section “D.5 GEAR REDUCER”.
▪ Refer to pump’s IOM manual to ensure pump proper installation, operation and start-up.
▪ Do not run the pump(s) dry or when the suction is not full of water; damage may occur.
▪ Do not start pump(s) with the valve fully-open; there is risk of overflowing the Cooling Tower.
CAUTION
When using a variable frequency drive (VFD), do not operate gear drive below 450 RPM
fan motor speed.
CAUTION
▪ The original oil should be replaced after 500 hours of operation or four weeks,
whichever comes first.
▪ After the initial oils change, oils should be changed every 2500 hours or every six months,
whichever comes first.
CAUTION
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