Part number 20080, Rev 0
8
Programming Mode
Note: The TempTech-2000 programming mode gives access to several
functions that are not intended for user adjustment. The procedures
below provide direction to the functions that you can adjust. Please do
not attempt to change any of the other functions in the programming
area or your unit may be damaged or become unstable.
Locking and Unlocking the Control
The control keys can be locked out to prevent inadvertent operation.
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To lock the control keys, simultaneously press and hold the up arrow and the down
arrow. The display will show “POF”. At this point you can only use keys to view the SET
temp and the minimum and maximum stored temperatures.
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To unlock the control keys, simultaneously press and hold the up arrow and the down
arrow. The display will show “Pon”. The control keys are now unlocked and you can
perform the programming functions below.
Adjusting the temperature control setpoints:
NOTE: The temperature control setpoints are preset at the factory to
provide the desired air and product temperatures inside of the unit and
require no further adjustment. Please contact the manufacturer’s
Technical Service Department before making any adjustments to
determine if adjustment is necessary and, if so, to make sure it is
performed properly.
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To set the compressor off setpoint, press and hold the SET key for 2 seconds. The C or F icon
will flash. Use the up or down keys to change the value. Press SET again to lock in the value.
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To set the compressor on setpoint, you will need to adjust the hysteresis (differential)
setting. This is the number of degrees the controller will allow temperature to drift up until
it restarts the compressor. For example, if the SET point is 3 degrees Celsius and the
