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Titan Central Chillers
electric motor. The following example is the start up procedure for a two pump central
chiller.
1.
Fully open the suction valves to the pumps allowing the pump case to fill with
water. Never allow the pump to operate dry, this can cause shaft seal failure.
2.
Close the discharge valves. A centrifugal pump can be operated with no flow
without damage, although this should not be for an extended period of time.
Internal friction will cause the water in the pump case to overheat.
3.
Place an amp meter on one leg of the process pump leads at the motor starter
block and start the motor. Slowly open the discharge valve allowing the process
piping to fill with water. After flow is established, continue to open the discharge
valve. The amp draw will increase as the flow increases until you reach the run
load amp rating listed on the motor data tag.
4.
Please note: On initial start up the water use points may not be sufficient to fully
load the motor, as you add use points you should recheck the amp draw on the
motor and adjust the discharge valve as needed to prevent overloading of the
motor.
5.
Place an amp meter on one leg of the tower pump leads and start the motor.
Slowly open the discharge valve allowing the piping to fill with water. After flow is
established, continue to open the discharge valve. The amp draw will increase
as the flow increases until you reach the run load amp rating listed on the motor
data tag.
6.
checking for proper amp draw.
7.
Always operate the pump with the suction valve fully open. Adjust the amp draw
with the discharge valve starting from a closed position. Starting from a wide
open position can give a false reading and result in motor failure.
Discharge Valve
Suction Valve
Never operate a pump without water in the case or never operate a pump without
525 East Stop 18 Road Greenwood, Indiana 46142
ADVANTAGE ENGINEERING, INC.
317-887-0729
Fax: 317-881-1277
Service Department Fax: 317-885-8683
Email: service@AdvantageEngineering.com
Page: 30
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