Optima S Thermostat
17
Operating Mode
To change the operating mode of the system, simply touch the Mode button to select
between the following:
•
Off
– The thermostat will not call for heat or cooling.
•
Cool
– The thermostat will call for cooling if the room temperature is above
the Cool set point.
•
Heat
– The thermostat will call for heat if the room temperature is below
the Heat set point.
•
Auto Heat/Cool
– The thermostat will call for heat or cooling as required
to keep the room temperature within the range set by the Heat and Cool set
points.
Frost Protect is active by default in all the above modes, including Off and Cool. Should
the room temperature drop below the Frost Protect set point, the thermostat will call
for heat to prevent frost damage.
The Operating Mode will appear in the Message line, alternating between current
operating mode and Day/Date.
Locking/Unlocking Keypad
If enabled. the keypad functions may be locked or unlocked from the keypad (see
settings LOCK SRC). To lock or unlock the selected functions (see settings LCK-XXX)
press the + and – buttons for 3 seconds. The buttons for the selected function will
disappear and appear as the function is locked and unlocked.
