Carrier 53DFS250-HW User manual

53DFS250-HW Thermostat
® 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 and other patents pending.
All rights reserved.
Installation
Guide
69-2565-05
R
R
System Types
• CoolOnly(singlestage) • HeatPump(withelectricheat)
CAUTION: ELECTRICAL HAZARD
Cancauseelectricalshockorequipmentdamage.Disconnectpowerbefore
beginninginstallation.
MERCURY NOTICE:Ifthisproductisreplacingacontrolthatcontainsmercuryin
asealedtube,donotplacetheoldcontrolinthetrash.Contactyourlocalwaste
managementauthorityforinstructionsregardingrecyclingandproperdisposal.
Must be installed by a trained, experienced technician. Readtheseinstructions
carefully.Failuretofollowtheseinstructionscandamagetheproductorcauseahazardous
condition.
Select Thermostat Location
Selectalocationforthethermostatabout5ft(1.5m)abovethefloorinanareawithgoodair
circulationataveragetemperature.
Donotinstallthethermostatwhereitcanbeaffectedby:
5 FEET
[1.5 METERS]
YES
NO
M22258
NO
NO
• Draftsordeadspotsbehinddoors
andincorners.
• Hotorcoldairfromducts.
• Radiantheatfromsunor
appliances.
• Concealedpipesandchimneys.
• Unheated(uncooled)areassuch
asanoutsidewallbehindthe
thermostat.

Installation Guide
2
69-2565—05
Wallplate installation
Power options
For24VACprimarypower,connectcommon
sideoftransformerto“C”terminal.
24 VAC 3.0 VDC
InstalltwoAAalkalinebatteriesonthe
backofthethermostatasmarked
M32487
Drill3/16”holesfordrywall.
Drill7/32”holesforplaster.
Wire hole Mounting
screws
Wallanchors
M32488
C
G1
Y
O
RC
R
H2
NOT
USED
G2
S1
S2
M28101
7+(50267$7
:,5(+2/(
0
:$//3/$7(
1. Separatewallplatefrom
thermostat.Grasptopandbottom
ofwallplateandpulltoremove
fromthermostat.
2. Installthewallplateasshown
below.

53DFS250-HW
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M32489A
C
G1
Y
O
RC
R
H2
NOT
USED
G2
S1
S2
SCREW
INSERT WIRES
THEN TIGHTEN SCREWS
WIRE HOLE
Leavethemetaljumperwirebetween
RCandR.
Pushexcesswirebackintowallopening.
Plugwallopeningwithnon-flammable
insulation.
Terminal Designations:
R 24Voltpower
Rc Notused[1]
C 24Voltcommon
H2 2ndstageheat(electricheat)
Y Compressor
G1 Lowspeedfan
G2 Highspeedfan
O Reversingvalveforheatpumps
S1 Remotesensororremotesetback[2]
S2 Remotesensororremotesetback[2]
Wiring
Notes
[1] LeavethemetaljumperwireinplacebetweenRcandR.
[2] Sensorwiremusthaveacableseparatefromthethermostatcontrolcable.

Installation Guide
4
69-2565—05
Wiring
HeatPumpwithElectricHeatwiring.
Coolonlywiring.
M32495
INDOOR TEMPERATURE
SENSOR/REMOTE
SETBACK/CHANGEOVER
PIPE SENSOR
FACTORY INSTALLED JUMPER.
1
C
G1
Y
RC
R1
H2
NOT
USED
G2
S1
S2
H2 H1 W2 C O R Y Y1 G1 G2 G3
AIR SWEEP FUNCTION (NOT AVAILABLE)
UNIT TERMINAL BLOCK
HIGH FAN LOW FAN NOT USED COMPRESSOR 24V POWER NOT USED COMMON NOT USED NOT USED NOT USED
INDOOR TEMPERATURE
SENSOR/REMOTE
SETBACK/CHANGEOVER
PIPE SENSOR
FACTORY INSTALLED JUMPER.
JUMPER WIRE (O TO Y1) REQUIRED
WHEN HEAT PUMP INDOOR IS USED
WITH COOLING ONLY OUTDOOR UNIT.
WIRE IS FIELD SUPPLIED.
1
2
2
C
G1
Y
O
RC
R1
M32490A
H2
NOT
USED
G2
S1
S2
H2 H1 W2 C O R Y Y1 G1 G2 G3
AIR SWEEP FUNCTION (NOT AVAILABLE)
UNIT TERMINAL BLOCK
HIGH FAN LOW FAN COMPRESSOR 24V POWER REVERSIBLE VALVE COMMON NOT USED NOT USED 2ND STAGE HEAT (ELECTRIC HEAT)

53DFS250-HW
569-2565—05
Sensor wiring for temperature averaging
WiringfourTR21(20Kohm)Sensors. WiringtwoTR21(20Kohm)Sensorsand
oneTR21-A(10Kohm)Sensortoprovidea
temperatureaveragingnetwork
WiringtwoTR21-A(10Kohm)Sensorsto
provideatemperatureaveragingnetwork.
WiringfourC7189U(10Kohm)Sensorsto
provideatemperatureaveragingnetwork.
M27481
S1 S2
T T
SUBBASE
TR21
T T
TR21
T T
TR21
T T
TR21
M27482
S1 S2
SUBBASE
TR21-A
T4 T3
TR21-A
T4 T3
1
11
THE TR21-A IS A 10K OHM SENSOR.
M27483
T4 T3
TR21-A
1
1
THE TR21-A IS A 10K OHM SENSOR.
S1 S2
TT
SUBBASE
TR21
TT
TR21
M27432
WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
1
1 C7189 C7189
C7189 C7189
SUBBASE
S1 S2

Installation Guide
6
69-2565—05
M32497
View
Clock & More
Next
Go Back
AM
Done
System & Fan
FanUseEdit
Fan Auto
System Auto
Done
System & Fan
FanUseEdit
Fan Auto
System Auto
Done
M32496
Tue
Done
PM
Next
Go Back Done
M28102
Removetab.
Alignpinsonbackofthermostatwith
slotsinwallplate,thenpushgently
untilthermostatsnapsintoplace.
Remove tab and mount thermostat
WALL
M23024
Set date and time
Press st to
changethe
Month,Year,Date,
or Time setting.
Press DONEtosavechanges.
MonthYearDate
Press GO BACK and
NEXTtoselectthe
Month,Year,Date,
orTimefunction.
Press DONEtosaveandexit.
Installer setup
1. Press SYSTEM and FAN.2. Press and hold SYSTEM
and DONEuntilthe
displaychanges.
3. Changesettingsasrequired(seepages7-9).
Press GO BACK and NEXTtoselectthefunction.
Press sttochangethesetting.
Press DONEtosavechanges.
SettingFunction

53DFS250-HW
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Installer setup
Continuedonnextpage
Setup
Number Setup Name Settings & Options (factory default in bold)
0120 Date(YearUpper) 20 (2011-2078)
21 (2101-2178)
0130 Date(YearLower) 08 (2008)
 [Otheroptions:00-99]
0140 Date(Month) 6 [Otheroptions:1-12]
0150 Date(Day) 15 [Otheroptions:1-31]
0160 ScheduleOptions 4 Programmable
0 Non-programmable
0170 SystemSelection 1 Coolingonly
2 Heatpumppluselectricheat
0185 Pre-occupancyPurge
Duration
0 Noduration
 [Otheroptions:1,2,or3hours]
0220 CyclesPerHour(CPH)
forfirststagecooling/
compressor
3 Recommendedformostcompressors
 [Otheroptions:1,2,4,5or6CPH]
0270 CyclesPerHour(CPH)for
heatingfirstandsecond
stage
9 Recommended
 [Otheroptions:1–12CPH]
0280 ContinuousBacklight 0No
1 Yes
0300 Changeover 1 Auto
0 Manual
0310 Deadband 3 3°F(2.0°C)
 [Options:2–9°F(1.5–5.0°C)]
0320 TemperatureIndication
Scale
0 °F
1 °C
0330 DaylightSavingTime 1 ON
0 OFF
0340 RemoteTempSensor/
RemoteSetback/
ChangeoverInput
0None
1 Remote10KIndoor
2 Remote20KIndoor
0340
(Non-
program-
mable)
RemoteTempSensor/
RemoteSetback/
ChangeoverInput
0None
1 Remote10KIndoor
2 Remote20KIndoor
5 RemoteSetback,normallyopen
6 RemoteSetback,normallyclosed
0341 DelayforRemoteSetback 0 NoDelay
2 2MinuteDelay
0342 OverrideOption(only
availableinnon-
programmablemode)
1 Override
0 NoOverride
0343 UnoccupiedHeating
Setpoint(onlywhenremote
setbackenabled)
60 60°F(15.5°C)
 [Options:50–65°F(10–18°C)]

Installation Guide
8
69-2565—05
Installer setup
Continuedonnextpage
Setup
Number Setup Name Settings & Options (factory default in bold)
0346 UnoccupiedCooling
Setpoint(onlywhenremote
setbackisenabled)
80 80°F(27°C)
 [Options:75–90°F(24–32°C)]
0347 FanRamping 1 ON
0 OFF(Lo,Med,Hi)
0348 FanMode 0 UsercanchooseCycleorConstant3speed:
Low,Med,High,Auto
1 CycleOnly-Autoonly
0349 AutoFanReset 0 OFF
1 ResetbacktoAutoafter2hours
2 ResetbacktoAutoafter4hours
0535 TemporaryOccupied
DurationLimit
3 hours
 [Otheroptions:0–12hours]
0540 NumberofPeriods 44 Periods
2 2 Periods
0580 MinimumCompressorOff
Time
3 3minutes
4 4minutes
5 5minutes
0600 HeatTemperatureRange
Stops
90 90°F(32°C)
 [Options:40–90°F(4–32°C)]
0610 CoolTemperatureRange
Stops
50 50°F(10°C)
 [Options:50–99°F(10–37°C)]
0640 ClockFormat 12 12Hour
24 24Hour
0650 ExtendedFan-ontimeHeat 0 Off
90 90seconds
0660 ExtendedFan-ontimeCool 0 Off
40 40seconds
0670 KeypadLockout 0 Unlocked
1 PartialLockout1:Locksoutscheduleandsystem
changes
2 PartialLockout2:Locksoutschedule,system,
andfanchanges
3 PartialLockout3:Locksoutschedule,system,
fan,andup/downarrowchanges
4 FullyLocked:Entireinterfacelocked/non-func-
tional
0680 TemperatureControlHeat 2Standard
1 Less Aggressive
3 More Aggressive
0685 RecoveryHeatRampRate 5 5°F(2.8°C)/hour
 [Options:0–20°F(0–11°C)]
0690 TemperatureControlCool 2Standard
1 Less Aggressive
3 More Aggressive

53DFS250-HW
969-2565—05
Installer setup
Setup
Number Setup Name Settings & Options (factory default in bold)
0695 RecoveryCoolRampRate 3 3°F(1.7°C)/hour
 [Options:0–20°F(0–11°C)]
0700 TemperatureDisplayOffset 0 0°F(0.0°C)
 [Options:-3–3°F(-1.5–3°C)]
0710 RestoreFactoryDefaults 0No
1 Yes
0720 ScreenDisplay 2 DisplayBoth
0 DisplayRoomTemperature
1 DisplaySetpoint
View
Clock & More
Next
Go Back
AM
Done
M32498
View
Clock & More
Next
Go Back
AM
Done
TEST1
Duringinstallersetup,pressNEXT
repeatedlyuntil“Test”appears.
Test
number
System
status
Press NEXT to
selecttest
Press st to
changestatus
Press DONE to terminate testing.
1 Installer Test Cool 0 Off
1 CoolStage1On
2 Installer Test Fan 0 Off
1 Low
2 Med
3 High
3 Installer Test Heat 0 Off
1 HeatStage1On
2 HeatStage2On
4 Installer Test EM Heat 0 Off
1 EMHeatOn
System test System status
CAUTION: EQUIPMENT
DAMAGE HAZARD.
Compressorprotectionis
bypassedduringtesting.
Topreventequipment
damage,avoidcycling
thecompressorquickly.
Installer system test

Installation Guide
10
69-2565—05
Fan Sequence Operations(SetupFunction0347,0348,0349):Thethermostatcomesfactorydefault
withthefanrampingalgorithmenabled(ISU347).ThisgivestheusertheabilitytoselectAuto-Lo-
Med-HioptioninISU348orAutoonlyoptioninISU348.Autosetsthethermostatintothefanramping
algorithmmodeandautomaticallysetsthesufcientspeedforPIcontrol.Autoalsoautomatically
shutsthefanoffwhenthereisnotacallforheatingorcooling.IftheuserdecidestodisableISU347,
thenthefanwillonlyhaveLo-Med-Hioptionavailable.
IfISU347isnotenabled,thenISU348doesnotappearasauserselectionchoice.
IfISU347isenabled,thenISU349isavailableasaselectionchoice.Theusercanselecteithera2
houror4hourtimerfanresetfunction.Thefanwillresetfromaconstantspeedtoautomodeafter
thetimeperiodexpires.IfISU347isnotenabled,thenISU349doesnotappearasauserselection
choice.
Auto Changeover(SetupFunction0300):WhensettoAuto,thethermostatautomaticallyselectsheat-
ingorcoolingdependingontheindoortemperature.
Compressor Protection(SetupFunction0580):Forcesthecompressortowaitafewminutesbefore
restarting,topreventdamage.Duringthistime,themessage“Wait”ashesonthedisplay.
Special Programmable Mode Functions
InstallerSetup0160allowsthethermostattobeconguredforeitheramodewithaprogrammable7
dayscheduleorasanon-programmablethermostat.
Preoccupancy purge(ISU0185):Thisfeatureisavailableonlywhenthethermostatisconguredas
aprogrammablescheduleandwhenafanisused.Thefanwillrun1-3hoursbeforetheoccupied
schedulestartingtimetocirculateair.
Override Button, Temporary Override(DurationLimitISU0535):Whileintheprogrammablesched-
ulemode,anoverridebuttonisavailabletoperformtemporaryoverridecontrol.Thedefaultoverride
timecanbeconguredthroughISU0535.LockoutcongurationviaISU0670canproviderestrictions
onaccesstosetpointchanges,systemchanges,andschedulechanges.
No remote setback:Theremotesetbackfeatureonlyworksinthenonprogrammablemode.
Special Non-Programmable Mode Functions
Override (Optional):Theoverridefeatureisoptionalinthenon-programmablemode.Theoverride
canbeconguredthroughISU0342.Whentheoverrideisactivatedinthenon-programmablemodeit
willtemporarilyoverridetoanewsetpointuntiltheendtimeexpires.
Remote Setback:RemoteSetbackisavailable(ISU0340).Occupancysensors,manualtimeclock
inputs,andDDCnightsetbackcanbeusedtoprovideinputstosetbackthethermostat.Unoccupied
heating(ISU0343)andunoccupiedcooling(ISU0346)setpointsareavailabletocongurethesetback
setpoints.
Special functions

53DFS250-HW
11 69-2565—05
Troubleshooting
Symptom Possible Cause Action
Displaydoesnotcome
on.
Thermostatisnotbeing
powered.
Checkfor24VacbetweenCandR.CheckthatAA
batteriesareinstalledcorrectlyandaregood.
Temperaturesettings
donotchange.
Theupperorlowertemperature
limitswerereached.
Checktemperaturesetpoints.CheckInstallerSetup
Numbers0600and0610;modifyasneeded.
Thekeypadisfullylocked. CheckInstallerSetupNumber0670tochange
keypadlockedoptions.
Heatingorcooling
doesnotcomeon.
Thermostatminimumoff-timeis
activated.
Waituptofiveminutesforthesystemtorespond.
SystemselectionnotsettoHeat
orCool.
SetsystemSelectiontocorrectposition.
SystemtypeSelectionis
incorrect.
CheckInstallerSetupNumber0170andmakesure
correctSystemtypeischosen.
Heatdoesnotturnon
(HeatOnissolidinthe
display).
Heatingequipmentfailure. Checkfor24Vacattheequipmentonthesecondary
sideofthetransformerbetweenpowerand
common.Ifvoltageisnotpresent,checktheheating
equipmenttofindthecauseoftheproblem.
Checkfor24Vacbetweentheheatterminal(Yand
H2)andtransformercommon.If24Vacispresent,
thethermostatisfunctional.Checktheheating
equipmenttofindthecauseoftheproblem.
Looseorbrokenwire
connectionbetweenthermostat
andheatingequipment.
Checkfor24Vacbetweentheheatterminal(Y
andH2)andtransformercommon.Ifvoltageisnot
present,checkwireconnection(looseorbroken)
betweenthethermostatandtheheatingequipment.
Coolingdoesnotturn
on(CoolOnissolidin
thedisplay).
Coolingequipmentfailure. Checkfor24Vacattheequipmentonthesecondary
sideofthetransformerbetweenpowerand
common.Ifvoltageisnotpresent,checkthecooling
equipmenttofindthecauseoftheproblem.
Checkfor24Vacbetweenthecoolterminal(Y)
andtransformercommon.If24Vacispresent,
thethermostatisfunctional.Checkthecooling
equipmenttofindthecauseoftheproblem.
Looseorbrokenwire
connectionbetweenthermostat
andcoolingequipment.
Checkfor24Vacbetweenthecoolterminal(Y)
andtransformercommon.Ifvoltageisnotpresent,
checkthewireconnection(looseorbroken)
betweenthethermostatandthecoolingequipment.
HeatOnisnotinthe
display.
Systemsettingisnotset
toHeatand/ortemperature
settingisnotsetaboveroom
temperature.
SetthesystemsettingtoHeatandsetthe
temperaturesettingabovetheroomtemperature.
CoolOnisnotinthe
display.
Systemsettingisnotsetto
Cooland/orthetemperature
settingisnotsetbelowroom
temperature.
SetthesystemsettingtoCoolandsetthe
temperaturesettingbelowtheroomtemperature.
Waitisinthedisplay. Compressorminimumofftimer
isactive.
Waituptofiveminutesforthecoolingorheating
(heatpump)equipmenttoturnon.

Installation Guide
® 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 and other patents pending.
69-2565—05M.S.Rev.05-11
Printed in U.S.A.
R
Temperature Ranges
• Heat:40°to90°F(4.5°to32°C)
• Cool:50°to99°F(10°to37°C)
Operating Ambient Temperature
• 0°to120°F(-18°to48.9°C)
Shipping Temperature
• -30°to150°F(-34°to66°C)
Operating Relative Humidity
• 5%to90%(non-condensing)
Physical Dimensions
• 3-3/4”Hx6”Wx1-3/8”D
• 95mmHx152mmWx35mmD
Electrical Ratings
Terminal Voltage(50/60Hz) RunningCurrent
H2Heating 20-30Vac 0.02-1.0A
YCooling 20-30Vac 0.02-1.0A
GFan 20-30Vac 0.02-0.6A
Specifications
Pleasecontactyourdistributortoorderreplacementparts.
Indoor Sensor......................................................... PartNumberP350-ISEN-CM20
Indoor Sensor......................................................... PartNumberP350-ISEN-CM10
Duct Probe .............................................................. PartNumberP350-PRB01
Indoor Sensor......................................................... PartNumberP350-ISEN-R340
Coverplate* ............................................................. PartNumberP350-CP-MULTI
*(Usetocovermarksleftbyoldthermostats.)
Accessories & replacement parts