Conair MPW Performing System Tests, then open the electrical enclosure, Set dip switches 3 and

Models: MPW MPA

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then open the electrical enclosure.

The microKool portable chillers provide a Test Mode that tests displays and keys on the control panel, as well as inputs and outputs. The Test Mode also allows calibration of the supply and return line thermocouples.

System tests and calibration should be performed annually.

To enable Test Mode:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

Press

 

to shut down the chiller.

Stop

 

 

2

Disconnect and lock out main power to the unit,

 

then open the electrical enclosure.

 

Set dip switches 3 and

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

8 7 6 5 4 3 2 1

 

 

5 to OFF.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

Set dip switch 6 to ON.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Close the electrical enclosure and restore

5

 

power to the unit.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The control displays “tSt.”

The Test Mode LED lights.

6 Press any button to display the first test menu.

Test mode provides the following menus:

Key/Display Test

Input Test

Output Test

Calibration

Total Operating Hours

Output Monitor Enable/Disable

7 After performing each test, hold the Setpoint Set dip switches 3 and for 3 seconds to index to the next test menu.

The procedure for each test is described on the following pages.

PERFORMING SYSTEM TESTS

IMPORTANT: All normal operating functions are disabled while Test Mode is enabled. To return to normal operation, you must disable Test Mode.

To disable Test Mode, repeat steps 2 through 5, setting dip switch 6 to OFF instead of ON.

UGH004/0999

microKool Portable Chillers

MAINTENANCE 5-7

Page 49
Image 49
Conair MPW, MPA manual Performing System Tests, then open the electrical enclosure, Set dip switches 3 and, to OFF, Press