Programming the controller involves setting the desired temperature, the temperature units (degrees C. or F.), selecting the heat or the chill mode and, if required, calibrating the temperature. Prior to programming, turn the TC-200 on and let it warm up for 10 minutes.

NOTE: To prevent damage to the controller and to reduce the risk of shock, never press programming buttons when your hands are wet.

1. To enter the programming mode remove the clear plastic cover and press the PROG button. The display will show the current set temperature and the PROG light will come on.

2. To change the set or desired temperature press the ALARM/SET button. Pressing it once will cause the set temperature to increase by one degree. If the ALARM/SET button is held in, the set temperature will increase at a one degree per second rate. When the set temperature reaches 90° F. or 32° C., it will “roll over” to 32ºF or 0° C. When the desired temperature is displayed, press the PROG button to go to the next programming function, temperature units (ºC. or ºF.).

3. The display shows the temperature units. Pressing the ALARM/SET button will cause the units to change between ºC and ºF. When the desired temperature units are shown, press the PROG button to move to the next programming function, selection of heat or cool operation.

5. The display shows the control function. Pressing the ALARM/SET button will cause the function to change between HE for heat and CO for cool.

6. When the desired control function is shown, press the PROG button.