21
ST621TX INSTRUCTION MANUAL
FROST MENU
Entering the FROST menu allows you to turn the frost protection mode of the ST621TX on or off. The
FROST mode temperature is preset at 5 ºC; this temperature is factory set and cannot be adjusted.
The FROST mode indicator will be displayed on all the FROST menu screens.
On entering the menu, use
the Touch Ring to scroll to the
preferred option (OFF or ON),
and confirm the choice using
the OK button. Use the Arrow
key to return to the Menu
Option display.
If the ST621TX is operating in FROST mode the LCD will not indicate
MANUAL or AUTO, but will display both the room temperature and also the
FROST mode indicator.
To turn off FROST mode, select the FROST menu and then by using the
Touch Ring scroll to the OFF setting. Press the OK key to confirm the setting.