Operation Manual

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l Press SET CLOCK to move on to Pre-comfort Recovery ON/OFF and Backlight ON/OFF settings.
- Choose from OP0 to OP3 by pressing UP or DOWN. See Chart 2.
- Factory default is OP3
l The backlight only comes ON in the dark.
l If the Backlight is ON (enabled), any key press will turn
the backlight ON for 6 seconds in the "dark".
CHANGING BATTERIES
When 1)the battery symbol on the LCD display flashes, or 2) Temperature & humidity in pane 1 are
flashing, or 3) a Beep sound is heard from the unit, it indicates that the batteries are running low and have to
be replaced immediately. However, it is recommended that the batteries be replaced every year even if the
indicator is not flashing.
To replaced batteries:
- Set the thermostat system switch to the OFF position and have the new batteries on-hand.
- Open the thermostat by gently pulling the front of the thermostat away from the backplate.
- Remove the old batteries and install new ones quickly.
- Close the thermostat to its original position.
If new batteries are inserted within 20 seconds of removing the old ones, the existing time and programs will
not be cleared. Otherwise, the display will show 9:00AM and the thermostat will have to be re-programmed.
OP
OP0
OP1
OP2
OP3
Options
Both Pre-comfort Recovery and Backlig ht are OFF
Only Pre-comfort Recovery - ON; Backlig ht - OFF
Pre-comfort Recovery - OFF; Only Backlig ht - ON
Both Pre-comfort Recovery and Backlig ht are ON
Chart 2