Carrier 53DFS250-HW Operating instructions

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This thermostat oontain$ a Lithium battery whioh may oontain Perohlorate material.

Perohlorate Material--$peoial handling may apply,

See www.dt$o.oa.gov/hazardouswaste/perohlorate

Read and save these instructions,

® U.S. Registered Trademark.

US Patent No. 7,114,554; 7,181,317; 7,225,054; 7,274,972; 7,636,604; 7,693,582

53DFS250=HW Thermostat

About your newthermostat

This thermostat is ready to go! ................. 3

Quick reference to controls ....................... 4

Quick reference to status display ............. 5

Programming& Operation

Clock setting .............................................. 6

System setting ........................................... 7

Fan setting .................................................. 8

Programming Heating and

Cooling Schedule ....................................... 9

To adjust program schedules .................. 10

Hold Temperature Untit ............................ 11

Override .................................................... 13

Holiday ...................................................... 14

Key look .................................................... 15

Appendicies

Battery replacement ................................ 18

Advanced functions ................................. 19

In case of difficulty ................................... 23

CAUTION" EQUIPMENT

DAMAGE HAZARD, To prevent

possible compressor damage, do

not operate cooling system when

outdoor temperature is below 50°F

(10°C) unless a low ambient control

kit is installed.

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OperatingManual

Features

• Large, Clear Display with Backlighting--current temperature, set temperature

and time are easy-to-read and all are displayed on the main screen.

• Menu Driven Programming--Provides guidance through the scheduling process,

showing only necessary information and choices on each screen.

• Ability to Select Multiple Days--allows easy customizing for unique schedules.

• Real-Time Clock--keeps time during power failure; automatically updates for

daylight saving time.

• Precise Temperature Control (_+l°F)--reliable, consistent comfort.

• Multiple OVERRIDE options--can modify schedule for a specific period of time

(up to 365 days).

• Speedy same-schedule programming--no need to copy mulitple days.

• Programmable or non-programmable modes.

• Remote setback input for occupancy sensors or timeclocks.

• VersaSpeed TM fan ramping algorithm and fan reset algorithm

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53DFS250=HWThermostat

Your new thermostat is pre-programmed and ready to go. Just set the time and day.

Then cheek the settings below and ohange if needed:

1. Set clock ........................................................................................................ See page 6

2. Select fan setting ........................................................................................ See page 7

3. Select system setting ................................................................................. See page 8

4. Program schedules: Preset to energy-saving levels

while you're at work or asleep (assumes you

wake at 6 am, leave at 8 am, return at 6 pm

and go to bed at 10 pro) ....................................................................... See pages 10=13

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OperatingManual

DAYS

SELECTED --

GO BACK KEY --

GOES BACK TO THE

LAST SCHEDULE STEP

SCHEDULE HEAT OR COOL

PERIOD TEMPERATURES

NEXT STEP KEY

ADVANCES PERIOD,TIME,

HEAT AND COOL TEMPERATURES

/-- UP ARROW

_ CHANGES TIME

A/AND

f___-- TEMPERATURES

!2 _ bOW.ARROW

CHANGES TIME

AND

TEMPERATURES

_DONE KEY

EXITS AND SAVES

CHANGES MADE

TO SCHEDULE M31449

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53DFS250=HWThermostat

CURRENT DAY CURRENT TEMPERATURE

OF WEEK TiME SETTING

CURRENT _

SYSTEM SETTING CURRENT

FAN SETTING

S

THERMOSTAT iS

"CALLING FOR

COOL OR HEAT"

M31450

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OperatingManual

CCLJ

Adjust time, then press DONE

To set the current time display, press

MORE,then press CLOCK.Use the arrows

to set the eurrent time

Press DONEto save & exit

Note: The real-time clock should never require

adjustment since it automatically updates for

daylight savings time, and stores alt date/time

information.

Note: To change the current week day display,

see page 20.

M31451

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53DFS250=HWThermostat

Press SYSTEM& FAN

Press SYSTEMto select mode,

then pl ;ss DONE

Foltow steps at left to seteot system:

* Heat: Thermostat controls only the heating

system.

.Cool: Thermostat controls only the cooling

system.

* Auto: Thermostat automatically selects

heating or cooling depending on the indoor

temperature.

o Off: Heat and Cool are off.

.Em Heat (only for heat pumps with auxiliary

heat): Thermostat controls Emergency and

Auxiliary Heat. Compressor is looked out.

Note: The Auto and Em Heat system settings

may not appear, depending on how your

thermostat was installed.

U

Note: When set to Off, the fan may operate

depending on the fan setting.

M31452

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OperatingManual

Press SYSTEM& FAN

Press FANto select mode, then press DONE

CCCD M31453

Press SYSTEM & FAN, then FAN to select fan

operation, then press DONE.

•On: Fan is always on.

•Auto= Fan runs only when the heating

or cooling system is on.

•LO: low fan speed

• MED: medium fan speed

•Hi: high fan speed

Display shows the fan blade symbol #t

next to FAN when the thermostat has the

fan turned on.

Occupied Mode-Fan control is On. Move

fan to Auto to turn off the fan.

Unoccupied Mode-Fan control is the

same as with the Auto setting, this is true

even when the display indicates "On".

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53DFS250-HWThermostat

IMPORTANT

Keepinmindthattheupanddownkeyschangetheflashingnumberor

word.Whenmultipleitemsareflashing,changesaffectonlyoneofthe

items.

The thermostat can control up to four different schedule periods per day:

• Occupiedl-Work arrival time. Period to keep space at a comfortable

temperature.

• Unoccl-Work exit time. Period to keep space at an energy-saving temperature.

• Occupied2-Second occupied period.

• Unocc2-Second unoccupied period.

NOTES:

* Available schedule times are at 15-minute intervals.

* With default settings, all four periods can be programmed. This can be

changed to allow only Occupied1 and Unoool programs. To use only

Occupied1 and Unoocl, see Step 8 in the Advanced Settings section.

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OperatingManual

CCC3

C22J

C22 C2C

CCZ3 CCC3

8.

Adjust

Press MORE,then SCHEDULE,then EDIT.

2. Press SELECTDAY.You can select

multiple days to program with the same

settings.

3. Press NEXTtwice, then press A or Y to

set Occupied1 time for selected day(s).

4. Press NEXT,then A or y to set Heat

temperature for this time period.

5. Press NEXT,then A or V to set Cool

temperature for this time period.

6. Repeat steps 3-5 to program other

time periods (OCCUP|ED2, UNOCCI,

UNOCC2), then press DONE.

7. Repeat steps 1-6 to program any

remaining days. (Press A or y until

the desired day is flashing, then press

SELECTDAY.)

Press DONEto save & exit.

temperature and time

M31454

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53DFS250-HW Thermostat

Adjust temperature and time

CCZD CCZD

M31455

Note: If HEAT and COOL both flash, your

temporary setting will automatically

adjust the cooling and heating set-

tings to maintain separation between

the cool and heat settings.

1. Press A or Y to immediately adjust

the temperature. This will temporarily

override the temperature setting for the

current time period.

2. Press NEXT.

3. Press A or Y to adjust time

4. Press DONE to save setting.

5. Thenewtemperaturewill be maintained only

untit the time you set.

Note: The length of time to be able to override

beyond the current time is limited from 1-12

hours.

6. To cancel the temporarily Hold Untit

setting at any time, press CANCEL.

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OperatingManual

Changes temperature setting until the

Adjust temperature and time next period takes effect. For use during

Unoccupied periods.

M31456

Note: The length of time to be able to

override is based on how the ther-

mostat is setup during installation.

1. Press OVERRIDE, the Hold Until time

will automatically adjust the override

setting

2. Press A or Y to adjust the temperature.

3. Press DONE to save setting.

Note: During an override, the word "Override"

flashes.

4. To cancel the override, press CANCEL.

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53DFS250-HWThermostat

Adjust days Changes temperature setting for a desig-

nated number of days.

1, Press MORE.

2. Press HOLIDAY. The temperature on the

screen flashes.

3, Use the Up and Down keys to change

the desired temperature for the

duration of the holiday.

4, Press NEXT. The screen shows "Hold

_ _ Until 1 Days". The number flashes.

M31457 5. Use the Up and Down keys to change

the number of days desired for the

thermostat to override the schedule.

6. Press DONE.

7. During a holiday, the word "Holiday"

flashes.

8. To cancel the Holiday Override early,

press CANCEL.

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OperatingManual

Looked When the thermostat displays "Looked", key con-

trol is either fully or partially looked.

CCC3 CCC CCC3

Fully Locked Keys

in this mode, all keys are locked. The screen con-

tinuously displays "Locked".

®

69-2566EFS--05

Partially Locked Screen

Pressing a locked key prompts the screen to indi=

care "Locked."

M31458

Holiday and Override options are available in all partial lockout levels.

Selecting HOLIDAY sets the temperature to the Unoccupied setting. The

temperature setting cannot be changed. The number of days to hold the holiday

can be changed. After this time, the next Occupied period switches back to the

program settings.

Selecting OVERRIDE sets the temperature to the Occupied setting. The

temperature setting cannot be changed. The period of time to hold the override

can be changed. After this time, the next Unoccupied period switches back to

the program settings.

To cancel the temperature override and follow the programmed schedule, press

CANCEL.

14

53DFS250-HWThermostat

PARTIAL LOCKOUT 1•The temporary temperature change

This mode locks out schedule and sys-

tem changes.

• User can change the temperature

setpoint and fan settings, but

cannot change schedule or system

settings.

• The temporary changes last until

next scheduled period. The screen

displays that time.

PARTIAL LOCKOUT 2

This mode locks out schedule, system,

and fan changes.

• User can change the temperature

setpoint, but cannot change

schedule, system, or fan settings.

lasts until next scheduled period.

The screen displays that time.

PARTIAL LOCKOUT 3

This mode locks out schedule, system,

fan, and temperature setpoint settings:

• Users cannot make changes to the

temperature setpoint or any schedule,

system, or fan settings.

•The only features available are

HOLIDAYand OVERRIDE.

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OperatingManual

Batteries are optional (to provide

backup power) if your thermostat

was wired to run on AC power

when installed.

Install fresh batteries immediately

when the L0 BATT warning begins

flashing. The warning flashes

about 30 days before batteries are

depleted.

Even if the warning does not

appear, you should replace batter-

ies once a year, or before leaving

home for more than a month.

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M31459

16

53DFS250-HW Thermostat

Press A or y to change setting.

Function

The thermostat has many settings that

can be adjusted to match specific needs:

1. Press SYSTEM & FAN.

2. Press and hold FAN for approximately

five seconds, until the screen changes.

3. Press NEXT to change the function

and use the A and T to change the

settings.

Press DONE to save and exit.

Note" See next pages for available functions to

change.

___ _ Press DONE to save & exit.

Press NEXT to advance to next function

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OperatingManual

Function Press A/T to change the first two digits of the year:

0120

Options: 20 = Year 20xx

21 = Year 21xx

Function Press A/T to change the last two digits of the year:

0130

Options: 01 =99 (i.e., 2011 =2099)

Function Press A/y to change the current month:

0140

Options: 1 =12 (i.e., January = December)

Function Press A/V to change the current date:

0150

Options: 1 - 31

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