Carrier 53DFS250-SL Thermostat User Manual


 
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.
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AUTO '+;_$t _ o COOL
HEAT
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Select Desired Temperature
Inany mode, adjust the
7 desired Set Point Temperature
with
COOL
buttons.
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 Press
ov°°°,°°0
U • _ _Pm
Su occupied 1
"I ,o_?
121 "=HEAT
I,:
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
appear on the display.
The time of day clock alternates
with the time remaining in
override.
During Override, the set point
temperatures are adjustable, pro-
vided the keypad is not locked.
Press the Program button to enter
PROGRAM time period programming,
Select the maximum number
of occupied periods to be
) used on any one day.
Typically 1.
(1,2 or 3)
_) Adjust the cooling
set point for occupied 1.
_J) (35 to 99 F)
Adjust the heating
set point for occupied 1.
(35 to 99 F)
_) Adjust the cooing
set point for unoccupied
(_ periods.
(35 to 99 F)
unoccupied
Adjust the heating
set point for unoccupied
periods.
(35 to 99 F)
Select the day for
Occupied 1.
(M-Su)
Adjust the start time
for occupied 1.
| PAlI..! < <
(_ Adjust the stop time
for occupied 1.
E" !3!3
On
Select Occupied 1 to run q
on this day (On), or not to
run this day (Off). ON
Off
COOL
( 1(::(
HEAT
I?
8_
COOL
(()()
HEAT
SS
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