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Owner's
Manual
PROGRAMMABLE
DIGITAL
THERMOSTAT
53DFS250-FS
©
©
[]
[]
-q Liquid Crystal
Display
with Thermoglew
TM
Backlight
[_
Up/Down
Buttons
[]Mode
Button
F4] Override
Button
Fq Heat or Cool Indicator
Heat = Red, Cool = Green
[_Ternperature
Sensor
Bubble
I1€1,'1_Bill [_
FRONT
PANEL
1
DISPLAY
1
QUICK
START
Set the clock and go
2
BASIC
OPERATION
2
PROGRAMMING
Occupied
and
Unoccupied
Periods
3
ADVANCED
SETUP
4
ABOUT
ADVANCED
FEATURES
AND OPERATION
5
WARRANTY
7
IMPORTANT: Follow Installation
Instructions
before
proceeding.
CAUTION: SETTHERMOSTAT TO MODE "OFF"
PRIOR TO CHANGING
SETTINGSIN SETUPOR
RESTORING FACTORY DEFAULTS,
7-Day Programmable
3 Occupied periods and 1 Unoccupied period
Auto Changeover
Large, Easy To Read Display
Thermoglow
TM
Backlight
Remote Sensor Ready
Dry Contact Equipped
Energy Saving Smart Fan
Fan Purge, IAQ Feature
Meets California Title 24
.... 2
I _,I |1|11A
Sta
[]
__
"U
U Pm ISt°p
IIII
[_SuMoTuWeThFrSa-Setup
r_,,, w,_,,,
[_
sled 123
o
,COOL,
LOCKea
un_
_
Override
[_
Outside
[]
_On_
ONOFF
_[_
HEAT
_-
[]
E_
Mode
Indicators
Selects
the operation
mode
of the equipment.
HEAT
-- indicates
the heat mode.
COOL
-- indicates
the air conditioning
mode.
AUTO
-- indicates
the system
will automatically
changeover
between
the heat and cool
modes
as the temperature
varies.
OFF
-- indicates
the entire
system
is turned
off.
PROGRAM
ON --
indicates
the stored
program
is
enabled
to run. See page 2.
r_
Clock with
of the Week
Day
Indicates
the current
time and day. This clock
is also
used to program
the timer
periods.
See page 2.
['3-] Room
Temperature
Display
Indicates
the current
room temperature.
[4-] Desired
Set Temperature
Indicates
desired
room temperature(s).
See page
2.
[5]
Override
Indication
Indicates
the current
program
is currently
being over-
ridden
for up to 4 hours.
See pages
2 and 5.
E_] Occupied
or Unoccupied
Indication
Indicates
the program
number:
Occupied
1,2, 3, or
Unoccupied.
See pages
3 and 4.
Manufacturer
reserves the right to discontinue, or change at any time, specifications
or designs
without notice and without incurring obligations.
Catalog No 535-328
Printed in U.SA
Form OM53-3
Pg 1
11-04
Replaces:
New
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Summary of Contents for Carrier PROGRAMMABLE DIGITAL THERMOSTAT 53DFS250-FS
- Page 1 [4-] Desired Indicates Override Indicates ridden E_] Occupied Indicates Instructions Unoccupied. or designs Printed in U.SA Form OM53-3 Manual THERMOSTAT Backlight ... 2 I _,I |1|11A "U U Pm ISt°p IIII [_SuMoTuWeThFrSa-Setup r_,,, w,_,,, sled 123 ,COOL, LOCKea Override Outside...
-
Page 2: Select Mode
OVERRIDE The thermostat is preprogrammed from the factory to operate without the need for further programming. To op- timize the installation of this thermostat, follow the in- structions in the Advanced Setup section, or in the Occu- pied/Unoccupied periods section. - Page 3 Important Before you Begin When using unoccupied modes, Auto fan speed must be selected. Manual fan speed should not be used for unoc- cupied operation. Auto Fan speed must be used to pre- vent the system from entering the coil freeze protection cycle or in heating, the high-pressure protection cycle.
- Page 4 Select Occupied 1 to run on this day (On), or not to __,:i_i run this day (Off). hl¢l IlL! Select Yes or No to copy program the previous to this day. day's Selecting Yes, then pressing mode will copy the previous day's program and then will ask the same copy question again If yes is setected each time, this routine will repeat until Saturday is copied to Sunday...
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Page 5: Advanced Setup Table
Step 13, from 0 to 3 hours. 0 = this feature turned off. • KEYPAD LOCK -- To prevent unauthorized use of the thermostat, the front panel buttons may be dis- abled. To disable, or 'lock' the keypad, press and hold the Mode button. While holding the Mode but- ton, simultaneously tons. -
Page 6: Remote Sensors
4:00. The Locked feature has no effect on the external Override button. The wired Remote Sensor is connected to the thermostat with up to 500 ft of 20 ga. or 300 ft of 18 ga. thermostat Remote Sensor instructions for further details. - Page 7 |YlY_l li_1 iTI Lv One-Year Warranty -- This Product is warranted one year from the date of original installation, not meet this warranty, a new or remanufnctured will be provided without charge for the part itself; PROVIDED the defective qualified servicing dealer.
- Page 8 Copyright 2004 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 535-328 Printed in USA. Form OM53-3 Pg 8 11-04 Replaces:...