Alliance Laundry Systems Calibrating the WE-6Temperature Circuit

Calibrating the WE-6 Temperature Circuit

1.Open the control compartment to gain access to the WE-6 computer board.

2.Viewing the WE-6 computer board from the rear, locate the blue rectangular plastic component with a white plastic screw head in the center. This is the temperature calibration potentiometer. Turning this screw head adjusts the temperature reading.

3.Fill the machine sump with water and place an accurate temperature sensor in the water to provide a measurement of the actual water temperature. The WE-6 temperature readout is then adjusted to match this to the nearest unit. It is easiest to program a Wash 3 (no agitation) for 10 seconds (to prevent rotation and subsequent damage to the temperature sensor), then a cold fill to high level, followed by a Wash 3 for

9 minutes and 99 seconds. Do not press STOP. Calibration must be completed before the last wash step finishes. Remove power to machine after calibration until computer goes off to prevent rotation when the cycle ends.

Operation

4.Start the cycle. When the water level is reached (and the external temperature sensor is submerged), press the DISPLAY TEMPERATURE key on the WE-6 keypad. The display will show a reading in either degrees F or degrees C, or the conversion will have to be made by calculation as follows:

Degrees F = (Degree C x 9/5) + 32 Degrees C = (Degrees F - 32) x 5/9

5.While pressing the DISPLAY TEMPERATURE key, use the screwdriver to turn the temperature calibration screw until the WE-6 displays the same temperature as the external sensor, which should be accurate at least to the nearest degree. Turning the screw clockwise increases the displayed temperature.

6.When the temperatures match, calibration is completed. Close the control compartment and remove the external temperature sensor. To prevent rotation, DO NOT PRESS STOP; instead remove power to the machine until the computer goes off.

*As an alternative, if an external sensor is not available, measure the temperature of the inflowing water, and follow step 5.

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