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5 checking motor rotation direction, 6 shutting down the temperature control unit – AEC TCU Series Open Reservoir Water Temperature Control Units User Manual

Page 37

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Page 38

Open Resevoir Water Temperature Control Units

5-5 Checking Motor Rotation Direction

Check for correct pump rotation direction by looking at the top of the motor. Press the

START

button and the

STOP

button, and note the direction that the motor turns.

Rotation should be clockwise when viewed from the motor end.

Make sure that a qualified electrician performs the following steps.


To change rotation direction:

§

Disconnect and lock out power at the fused disconnect.

§

Reverse any two incoming leads at the power terminal blocks.

§

Do not switch leads at the motor or motor starters.

5-6 Shutting Down the Temperature Control Unit

Cool the unit down by selecting a set point of zero (

0

). Let the unit stabilize at one

temperature close to the incoming water temperature, then press the

STOP

button.

Now rotate the disconnect switch to the

OFF

position.