Honeywell DT92 Manual page 16

To enter Installer Mode:
a. Put DT92 into off/standby mode by pressing and
holding the off/standby button for 2 seconds.
b. Now press and hold both ▲ and ▼ temperature
adjustment buttons for 3 seconds, until the
display shows the word "Inst".
c. Press the ▲ button to get to the first parameter
Ot. The parameter code is shown on the display
separated by a colon from the parameter value.
Parameter
To select and change a parameter:
d. Use the ▲ and ▼ buttons to move from one
parameter to another.
e. Press the off/standby button to select the
parameter value, ready to change
f. Use the ▲ and ▼ buttons to adjust the
parameter value. When the correct value is
flashing, confirm the selection by pressing the
off/standby button again, returning to the
parameter menu.
To exit Installer Mode:
g. Press and hold the off/standby button for 3
seconds
Note: Installer Mode will exit automatically after 10
minutes if no buttons are pressed.
INSTALLER MODE - FLOWCHART
Value
ES parameter
Only available
on DT92E model
16
DT92 WIRELESS DIGITAL ROOM THERMOSTAT