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Option 18 --Backlight Co nfiguration
Selections:
ON, OF — Default is OF.
When ON is selected and the thermostat is not battery operated a low level
continuous display backlight isalways on. With OF selected, the backlight is only
on for a short time after the door is opened or a key is pressed. Continuous
backlight is not available withbattery op eration.
Option21 --Keypad Lockout
Selections:
ON, OF — Default is OF.
WithOF selected, the keypad cannot be locked. With ON selectedthe keypad will
belocked and can be unlocked by simultaneously pressing the UPand DOWN keys
for5 seconds.Once unlocked, it willrelock 2 minutes after the last keypad press. A
“lock” icon is displayed wh ile it is locked.
Option24 -- Programmable/Non--Programmable(programmablemodel only)
Selections:
P,nP — Default is P.
This option is only availableon programmable models, allowing programming to
be disabled when nPis selected. The clock is displayed, butthe program schedule,
the HOLD and TEMPORARY HOLD functions are disable d.
Option25 -- Numberof Programmable Periods (programmablemodels only)
Selections:
2,4 —Default is 4.
Selecting 2 allows2 programming periods, P1 and P2,per day. Selecting 4 allows
periodsP1, P2 , P3, and P4. Not available with non--programmablethermostats.