Conair MPA Selecting The Temperature Control Point, 3-12, Set dip switches 3 and, ON position

SELECTING THE

TEMPERATURE

CONTROL POINT

(PC-2CONTROL ONLY)

WARNING: Electric shock hazard

This equipment is powered by high voltage. Always disconnect and lock out the main power source before opening the unit or the electrical enclosure to modify factory settings. Failure to disconnect and lock out the main power source can result in severe personal injury.

PC-1 microprocessors control the process temperature based upon the average of the temperatures recorded at the supply (to process) and return (from process) thermocouples.

The PC-2 microprocessor allows you to select how the unit will measure and control the process temperature. The control point can be selected as the supply, the return or the average of the the two temperatures.

To select the control point source on units with PC-2 control:

1				Disconnect and lockout power to the unit.
				Open the electrical enclosure.
		2
3	Set dip switches 3 and
				6 to the OFF position.	8	7	6	5	4	3	2 1
				Set dip switch 5 to the
	4
				ON position.

5 Close the electrical enclosure and restore power to the unit.

6 Press any button when the control displays “Cnt Pt”.

The controller will display “Sel CnP” and flashes the LED for the current con- trol point.

7 Select a new control point using the Display button.

Stop pressing the select button until the indicator light next to the control point you want illuminates.

3-12 INSTALLATION microKool Portable Chillers UGH004/0999