Carrier 53DFS250-FS - Manual (Page 2)

Display
□
10
11
Setup Indication
Indicates the thermostat is in the programming mode.
See page 4.
Fan Operation Indication — 3 Speed
Fan — indicates constant continuous fan operation,
3 speed indicators appear as:
1 bar ■ = low speed
2 bars il = medium speed
3 bars ill = high speed
When Fan is not lit — indicates the fan is in Auto
mode. The fan will operate at the speed which will
help meet room temperature conditions.
See page 4.
Locked Indication
Locked appears after the right combination of buttons
are pressed, rendering the buttons inoperative.
See page 5.
Start/Stop Indication
Start or Stop appears when programming timer
functions.
See page 3.
Outside Indication
Indicates the temperature displayed is from the
optional outside sensor.
See page 6.
Basic Operation
Select Mode
The
HEAT
setting indicates
the temperature the room has
to reach before the unit wit!
turn on to heat the room.
I if
HEAT
S3
The
COOL
setting indicates 1 é . li ti
Prr:
the temperature the room has
7?
to reach before the unit will
turn on to cool the room. 111
AUTO
will automatically
select heat or cool based on
V
room temperature demand. ■ . ■ CIOOL
m m M
AUTO
■ HEAT
Program On
will activate the
stored timer operation.
(Occupied and Unoccupied
periods.)
Quick Start Set the Clock and Go ProgramOn
MODE
OVERRIDE
o
iP'fifh
I S» ■
Press the Mode button.
While holding the Mode,
press the Override button
for 2 Seconds to enter Setup
screens.
Press both Mode and mode
Override buttons as
above to return to
normal operation.
OVERRIDE
o
o
During Setup and
Programming:
Pressing the Mode but­
ton selects different
flashing items. (Repre­
sented in dark black).
Pressing the Up and
Down buttons will
modify the flashing
selection.
To adjust the
clock or Day use
buttons.
OFF
indicates the system is
turned oft.
Select Desired Temperature
I J “ n ff «S *81
I L H Lf y ;'ìr; f
OFF
In any mode, adjust the
desired Set Point Temperature
with
ILI
o
Pressing the up/down buttons in Auto mode will adjust both the
heat and cool set point temperatures simultaneously.
Pressing the up/down buttons in Heat or Cool modes will adjust
only the heat or cool set point temperature.
Override
The thermostat is preprogrammed from the factory to
OVERRIDE
f
operate without the need for further programming. To op­
timize the installation of this thermostat, follow the in­
( re ft ft t IL
w y y Pm Slop
o r
structions in the Advanced Setup section, or in the Occu- Su
unoccupied _
on
pied/Unoccupied periods section.
r r
COOL
NOTE: The thermostat is not programmed to operate
i'll
HEAT
heat pump systems.
U Jl
cc
nn
t Zi ■ r$ n r.
I C .u U
n • Il
you
Î
3
a
IH
I
ProgramOn
O COOL
Override
If?
During programmed, unoccu­
pied periods pressing the
Override button will force the
thermostat into Occupied 1
comfort settings, temporarily.
With each successive push of
the Override button, the over­
ride timer will add 30 min­
utes, until the maximum of
4 hours is reached. Then the
next press will zero out the
override timer, returning to
unoccupied if there are no
further button presses.
When in Override, the Over­
ride icon and the Occupied 1
icon appear on the display.
The time of day clock alter­
nates with the time remaining
in override.
During Override, the set
points are adjustable, provid­
ed the keypad is not locked.
Page 2