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O ACCESS THE EXPERT SETTINGS MENU: Place the thermostat into STANDBY mode. Hold both the SET and
UP buttons for approximately 10 seconds until the screen changes for a second time, after the INSTALLER
menu content appears. The menu starts with item #01 below, and is advanced to each following item
pressing the OK/INFO button. The options for each item are changed using the UP or DOWN buttons. To exit,
keep pressing the OK/INFO button until the thermostat returns back to the normal STANDBY mode screen.
ITEM #01 (ROOM/AIR TEMPERATURE SENSOR CALIBRATION): [0°F (0°C) Degrees, default] This setting
directly offsets the measurement value for the Room/Air temperature sensor. The available range for this
calibration adjustment is from MINUS 5°F (3°C) degrees, to PLUS 5°F (3°C) degrees, above or below the actual
perceived temperature measurement.
ITEM #02 (FLOOR/SLAB TEMPERATURE [#2] SENSOR CALIBRATION): [0°F (0°C) Degrees, default] This
setting directly offsets the measurement value for the Floor/Slab temperature sensor. The available range for
this calibration adjustment is from MINUS 5°F (3°C) degrees, to PLUS 5°F (3°C) degrees, above or below the
actual perceived temperature measurement.
ITEM #03 (DEFAULT DISPLAY TEMPERATURE SOURCE): [T1-ROOM/AIR, default] This uses the internal
Room/Air temperature as the ambient temperature displayed on the screen. [T2-FLOOR/SLAB] This uses the
remote Floor/Slab temperature [#2] sensor as the temperature displayed on the screen.
ITEM #04 (TEMPERATURE REGULATION TYPE): [PID Algorithm, default] This setting uses a complex learning
algorithm that anticipates when to turn the heating output on and off, well in advance of the actual floor/slab
temperature input to minimize overshoot and undershoot. [ON/OFF 2-POINT] This control type uses fixed
on/off conditions for heating output commands, and is not
recommended for use with a hot water based
floor/slab heating system.
EXPERT SETTINGS MENU:
WARNING:
When in STANDBY MODE, the thermostat does not provide freeze protection. There is no low-
temperature limit for the Floor/Slab temperature. If the system has not been adequately
prepared for low temperatures, damage from freezing can result.