
TTK Series Polyethylene Pump Tank Station with Checkmate Control System
Page: 14
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: 317-881-1277
Service Department Fax: 317-885-8683
4. Openasmanyprocessconnectionvalvesaspossibletoestablishawaterow
path.
D. Motor Rotation for Process Pump.
1. Activate the electrical power to the unit.
2. Turntheprocesspump‘on’momentarilyandthen‘off’again.Observetheshaftof
each motor. As the shaft slows to a stop, its rotation can be determined. Correct
rotation is clockwise when viewed from the rear of the motor.
3. If rotation for a motor is incorrect, disconnect power and reverse any two wires at
themotor’sstarterblock.
E. Motor Rotation For Tower / Evaporator Pump and Tower Fan
1. Activate the electrical power to the unit.
2. For tower system applications. It may be necessary to lower the setpoint on
the Checkmate control instrument.
3. Turnthepumporfan‘on’momentarily,then‘off’again.Observetheshaftofthe
motor. As the shaft slows to a stop, its rotation can be determined. For pump
motors, correct rotation is clockwise when viewed from the rear of the motor. As
forAdvantagePowerTowerberglasscoolingtowers,correctrotationiscounter
clockwise or air should be drawn from the bottom of the tower and out the top.
For other tower cells, check the tower cell manual for instructions on correct
rotation.
4. If rotation for a motor is incorrect, disconnect power and reverse any two wires at
themotor’sstarterblock.
F. Pump Flow Adjustments
1. Whenstartingacentrifugalpump,itisimportanttoproperlysettheowrateto
prevent overloading of the pump motor. The following example is the start up
procedure for a two pump system.
2. Fully open the suction valves to the process and tower/evaporator pump. Note:
never allow the pumps to operate ‘dry’, as this can cause shaft seal failure.
3. Close the discharge valves of the process and tower/evaporator pumps. Note:
acentrifugalpumpcanbeoperatedwithnoowwithoutdamage,althoughthis
should not be for an extended period of time. Internal friction will cause the water
in the pump case to overheat.
4. Place an amp meter on one leg of the process pump wires at the motor starter.
Start the motor. Slowly open the discharge valve, allowing the process piping to
llwithwater.Afterowisestablished,continuetoopenthedischargevalve.The
ampdrawwillincreaseastheowincrease.Oncetherun-loadamprating,as
listed on the motor data tag, is reached, leave the valve in that position.