Owner`s manual

6. Technician Settings

6.1 Adjust temperature limits for cool and heat, and offset for temperature reading.

• Set temperature to 50°F.

• Wait until the display

• Press and hold the SELECT button (5 sec.) – “COOL” and the temperature limit for

cooling will appear on display.

• Adjust the temperature limit for cooling (Limit Cool) using the “+” and “-“ buttons.

• Press the SELECT button again – “HEAT” and the temperature limit for heating will

appear on display.

• Adjust the temperature limit for heating (Limit Heat) using the “+” and “-“ buttons.

(Limit Heat should be higher than Limit Cool).

• Press the SELECT button again – the OFFSET temperature will appear on display (a

number between –6…+6). The offset is used for calibration of the measured temperature.

• Adjust the Offset for ambient temperature reading using the “+” and “-“ buttons.

• Press the SELECT button again to return to normal display.

6.2 Freeze Protection

• When the temperature drops below 45°F, the thermostat will turn on the Heat and Fan

outputs in order to protect the system from freezing.

• This function will be activated when the thermostat is either in On or Off position.

• The Display will alternate between ”AL” and “TEMP”

• The thermostat will return to normal mode when the temperature rises above 48°F.