Override; Cool; Heat - Bryant 53DFST2-NP-BRY Owner's Manual

About Advanced Features and Operation
• CLOCK BACKUP — In the event of a power loss, the
thermostat internal clock will continue to keep proper
time for a minimum of 48 hours without external power
or batteries.
• MINIMUM HEAT/COOL SET POINT DIFFERENCE —
The Heat and Cool set points will not be allowed to
come any closer to each other than the value set in
Advanced Setup Step 7, on page 4 . This minimum dif-
ference is enforced during Auto changeover and Pro-
gram On operation.
• ENERGY SAVING SMART FAN — If Fan On icon is
selected, the fan will run continuously at all times,
except in Off, and will only run if there is a heating or
cooling demand in Unoccupied periods.
• OVERRIDE — As explained on page 2 , pressing the
Override button during a programmed, Unoccupied
period will force the thermostat into Occupied 1, tem-
porarily, up to 4 hours. If the Override button is
pressed during an Occupied period, the thermostat
will be forced into Unoccupied and the occupied period
(1,2 or 3) , it was forced out of will be turned off, only for
that day.
During Override periods the set points may be
adjusted, but they will not be remembered after Over-
ride ends.
• KEYPAD LOCK — To prevent unauthorized use of the
thermostat, the front panel buttons may be disabled.
To disable or 'lock' the keypad, press and hold in the
Mode button. While holding the Mode button in, press
the Up and Down buttons in together. The Locked
icon will appear on the display.
To unlock the buttons, again press and hold the Mode
button. While holding the Mode button in, press the Up
and Down buttons in together. The Locked icon will
disappear from the display.
• DISPLAY BLANKING — The thermostat display may
be configured in advanced setup, page 4, Step 3, to
always be visible as normally expected, or may be
selected Off. When selected Off, only the time of day
will appear until a button is pressed. When a button is
pressed the full, normal display will appear and then
revert to the time of day only, after roughly 10 seconds.
:
Pm
Setup
We

Cool

unoccupied
Locked
ON

Heat

Page 5
• DUAL SET POINT BEHAVIOR — The adjustable set
point range is: 35 to 99 degrees in Fahrenheit and 7 to
35 degrees in Celsius. When in the modes Heat or
Cool, this adjustable range is unhampered.
• When adjusting any Auto mode, including program-
ming Occupied and Unoccupied periods, the thermo-
stat will not allow the Heat set point to get closer to the
Cool set point than the value programmed as the mini-
mum difference in Step 7, page 4.
• When entering the Auto mode from Cool, the Heat and
Cool set points will remain spread apart by the amount
that they were adjusted, prior to entering Auto.
• For example: If the Cool set point was set to 80 while
in the Cool mode and the Heat set point was adjusted
to 70 while in the Heat mode, upon entering the Auto
mode the Cool and Heat set points would be 80 and
70. Both set points would then move up and down
together, (in this example spread by 10 degrees), by
pressing the up or down buttons.
• To move the Heat and Cool set points closer together,
enter the Cool or Heat mode by pressing the Mode
button, then adjust the set point(s) closer together.
Heat is limited to how close it can come to Cool by
Step 7, page 4 .
• FACTORY DEFAULTS — Before restoring factory
defaults, set thermostat to OFF mode. If, for any rea-
son it is desirable to return all stored settings back to
the factory default settings, press the Mode button.
While holding the Mode button in, press the Down for
2 seconds. All icons will appear. Press and hold in the
Override button until Fd appears. This resets all fac-
tory settings. To calibrate room temperature, press
the Mode button once more. At this point use the Up
and Down buttons to calibrate room temperature, if
needed. Press the Mode button to return to normal
operation.
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Am
Mo
H
EAT