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Basic Operation - Carrier 53DFST2-NP Owner's Manual

Programmable digital thermostat

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Display
7 Setup Indication
Indicates the thermostat is in the programming
mode. See page 4.
8 Fan Operation Indication
Fan On Icon — indicates constant continuous fan
operation in one of three manual speeds.
When Fan On Icon is not lit — indicates the fan
will only operate when necessary to heat or to
cool. See page 4.
9 Locked Indication
Locked appears after the right combination of
buttons are pressed, rendering the buttons in
operative. See page 4.
10 Start/Stop Indication
Start or Stop appears when programming timer
functions. See page 3.
Quick Start Set the Clock and Go
:
Pm
Setup
Setup
Su
The thermostat is preprogrammed from the factory to op-
erate without the need for further programming. To opti-
mize the installation of this thermostat follow the instruc-
tions in the Advanced Setup section.
NOTE: The thermostat is not programmed to operate
Duct-Free Split heat pump systems .
During Setup and Programming:
Pressing the Mode button selects
different flashing items. (Repre-
sented in black.)
Pressing the Up and Down buttons
will modify the flashing selection.

Basic Operation

Select Mode
The HEAT setting indicates
the temperature the room has
to reach before the unit will
turn on to heat the room.
The COOL setting indicates
the temperature the room has
to reach before the unit will
turn on to cool the room.
AUTO will automatically
select heat or cool based on
room temperature demand.
Program On will activate the
stored timer operation.
(Occupied and Unoccupied
periods.)
OFF indicates the system is
turned off.
Select Desired Temperature
:
Pm
Mo
COOL
AUTO
HEAT
Pressing the up/down buttons in Auto mode will adjust both the
heat and cool set temperatures simultaneously.
Pressing the up/down buttons in Heat or Cool modes will adjust
only the heat or cool set temperature.
Override
:
Pm
Stop
unoccupied
Su
COOL
HEAT
ProgramOn
:
Pm
:
Pm
occupied 1
Su
COOL
Override
HEAT
ProgramOn
Page 2
:
Pm
Mo
HEAT
:
Pm
Mo
COOL
:
Pm
Mo
COOL
AUTO
HEAT
:
Pm
occupied1
Mo
COOL
HEAT
ProgramOn
:
Pm
Mo
OFF
In any mode, adjust the
desired Set Point Temperature
with
buttons.
During programmed, unoccupied
periods a press of the Override
button will force the thermostat
into Occupied 1 comfort settings,
temporarily.
With each successive push of the
Override button, the override tim-
er will add 30 minutes, until the
maximum of 4 hours is reached.
Then the next press will zero out
the override timer, returning to un-
occupied if there are no further
button presses.
When in Override, the Override
icon and the Occupied 1 icon ap-
pear on the display.
The time of day clock alternates
with the time remaining in over-
ride.
During Override, the set points
are adjustable, provided the key-
pad is not locked.

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