Carrier 53DFS250-SL User's Manual
Contents
1. z Fan ll A x HA i 3 Mode Indicators Selects the operation mode of the equipment COOL indicates the air conditioning mode HEAT indicates the heat mode AUTO indicates the system will auto matically 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 3 Clock with Day of the Week Indicates the current time and day This clock is also used to program the timer periods See this page Room Temperature Display Indicates the current room temperature Desired Set Temperature Indicates desired room temperature s See page 3 Override Indication Indicates the current program is currently be ing overridden for up to 4 hours See pages 3 and 5 6 Occupied or Unoccupied Indication Indicates the program number Occupied 1 2 3 or Unoccupied See pages 3 and 4 Setup Indication Indicates the thermostat is in the program ming mode See page 4 Fan Operation Indication Fan all indicates constant continuous fan operation When Fan On Icon is not lit indicates the fan will only operate when necessary to heat or to cool 9 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 t2. s sole option to replace any defective part will be provided without charge for the part itself PROVIDED the defective part is returned To the distributor through a qualified servicing dealer THIS WARRANTY DOES NOT INCLUDE LABOR OR OTHER COSTS incurred for diagnosing repairing removing installing shipping servicing or hancling of either defective parts or replacement parts Such costs may be covered by a separate warranty provided by the installer THIS WARRANTY APPLIES ONLY TO PRODUCTS IN THEIR ORIGINAL INSTALLATION LOCATION AND BECOMES VOID UPON REINSTALLATION LIMITATIONS OF WARRANTIES ALL IMPLIED WARRANTIES INCLUDING IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY ARE HEREBY LIMITED IN DURATION TO THE PERIOD FOR WHICH THE LIMITED WARRANTY IS GIVEN SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS SO THE ABOVE MAY NOT APPLY TO YOU THE EXPRESSED WARRANTIES MADE IN THIS WARRANTY ARE EXCLUSIVE AND MANY NOT BE ALTERED ENLARGED OR CHANGED BY ANY DISTRIBUTOR DEALER OR OTHER PERSON WHATSOEVER ALL WORK UNDER THE TERMS OF THIS WARRANTY SHALL BE PERFORMED DURING NORMAL WORKING HOURS ALL REPLACEMENT PARTS WHETHER NEW OR REMANUFACTURED ASSUME AS THEIR WARRANTY PERIOD ONLY THE REMAINING TIME PERIOD OF THIS WARRANTY THE MANUFACTURER WILL NOT BE RESPONSIBLE FOR 1 Normal maintenance as outlined in the installation and servicing instructions or owner s manual including filter cl
3. The Heat and Cool set point temperature will not be allowed to come any closer to each other than the value set in Advanced Setup Step 5 on page 4 This minimum difference is enforced during Auto changeover and Program On operation ENERGY SAVING SMART FAN If Fan On is selected the fan will run continuously at all times except in Off and will only run if there is a heating or cooling demand in Unoccupied periods OVERRIDE As explained on page 3 pressing the Override button during a programmed Unoccu pied period will force the thermostat into Occupied 1 temporarily up to 4 hours If the Override button is pressed during an Occupied period the thermo stat will be forced into Unoccupied and the occu pied number 1 2 or 3 it was forced out of will be turned off only for that day During Override periods the set point temperature may be adjusted but they will not be remembered after Override ends HEAT First Stage Heat Pump Second Stage Heat Pump and Electric Heat FAN PURGE TIMER When this feature is acti vated the fan will turn on during Unoccupied at a preset amount of time prior to Occupied 1 This pre occupancy fan purge timer may be set as instructed on this page Step 12 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 in the Mode butt
4. ID Press the Mode button While holding the Mode press the Program button leave the Setup screens If no buttons are pressed the display will leave the setup screens after 30 seconds Advanced Setup Table FACTORY DESCRIPTION RANGE DEFAULT Time of day clock set 12 00 Am Day of the week Mo TOn On Deadband or Temperature swing 2F Forcan minimum difference heat OF Cycles per hour d d1 2 6 6 Security Levels 0 Maximum allowable Heat set point 80 F Minimum allowable Cool set point 65 F Fahrenheit or Celsius F Thermoglow backlight Off On On 0 00 3 00 x A Fan Purge timer 0 00 min Soft Start 99 0 About Advanced Features and Operation e CLOCK BACKUP In the event of a power loss the thermostat internal clock will continue to keep proper time for a minimum of 48 hours without external power or batteries TWO STAGE OPERATION The Second Stage of heat Heat pump models only is turned on when 1 the first Stage has been on for a minimum of two minutes and 2 the temperature spread from the set point is equal to or greater than the set point temperature plus the deadband plus 2 degrees Heating Cooling Dead Dead 2 degrees 2 degrees Bang Bang 2 degrees 2 degrees 2nd Stage 1st Stage Heat Cool 1st Stage turn turnon Set Point_ Set Point jum on 3rd Stage 2nd Stage 1st Stage Low Med High lt Fan Speeds Hi Med OW Page 5 MINIMUM HEAT COOL SET POINT DIFFERENCE
5. of occupied periods to be used on any one day Typically 1 1 2 or 3 Adjust the cooling set point for occupied 1 35 to 99 F Adjust the heating set point for occupied 1 35 to 99 F Adjust the cooling set point for unoccupied periods 35 to 99 F Adjust the heating set point for unoccupied periods 35 to 99 F Press the Program button to enter unoccupied Select the day for M Occupied 1 M Su whey fakt Adjust the start time A for occupied 1 JD dB dD JD IB WD db dB Jb Adjust the stop time for occupied 1 On Select Occupied 1 to run on this day On or not to run this day Off ON Off Occupied and Unoccupied Periods w n m andl anal COOL Programming Occupied and Unoccupied Periods The copy command becomes available after the maximum number of occupied periods are programmed in a day This example uses 1 as the maximum occupied periods ever programmed in one day ran Yes Select Yes or No to copy NOW the previous day s s LENI u program to this day No ry Lars Selecting Yes then pressing Mode will copy the previous day s program and then will ask the same copy question again If yes is selected each time this routine will repeat until Saturday is copied to Sunday After Saturday is copied to Sunday the copy command is unavailable Select the day Tu for Occupied 1 oa gauc gt
6. was already active the first button press will round the runtime to either 2 00 or 4 00 Subsequent button presses will not wraparound as the Override button on the thermostat does so the second or greater button press will set the runtime to 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 wire See the Remote Sensor instructions for further details FACTORY DEFAULTS Before restoring factory defaults set thermostat to OFF mode If for any reason it is desirable to return all stored settings back to the factory default settings press the Mode button While holding the Mode button in press the Fan button for 5 seconds All icons will appear Press and hold in the Fan button until Fd appears This resets all factory settings To calibrate room temperature press the Up and Down buttons at the same time twice At this point use the Up and Down buttons to calibrate room temperature if needed Press the Mode button to return to normal operation Optional Remote Sensor Optional Sensor One Year Warranty This Product is warranted to be free from defects in material and workmanship If it appears within one year from the cate of original installation whether or not actual use begins on that date that the product does not meet this warranty a new or remanufactured part at the manufacturer
7. 3 ro _ Aa so Sa Adjust the start time for occupied 1 Adjust the stop time for occupied 1 On Select Occupied 1 to run on this day On or not to run this day Off Off Yes zaz T Select Yes or No to copy the previous day s program to this day rr Li PY Selecting Yes then pressing Mode will copy the previous day s program and then will ask J Ide a gt Ip No the same copy question again If yes is selected each time this routine will repeat until Sat urday is copied to Sunday After Saturday is copied to Sunday the copy command is unavailable If no is selected as in previous steps flashing prompts for input will appear for start and stop times for Occupied 1 If more than one occupied period was selected in Step 1 on page 3 then cool heat set points and start stop times for additional occupied periods will be prompted PROGRAMMING NOTES e lf only 1 Occupied period is selected in step 1 on page 3 Occupied 2 and 3 programming steps are skipped Further if only 2 occupied periods are selected Occupied 3 programming steps are skipped e Heat and Cool set points for Occupied 1 are the same for every day of the week Heat and Cool set points for Occupied 2 and 3 can be adjusted differ ently for each day of the week if desired e If the start time is set later in the day than the stop time the program will run from the start time Page 4 to midnight and fr
8. Owner s Manual PROGRAMMABLE DIGITAL THERMOSTAT 53DFS250 SL Table of Contents e 7 Day Programmable 3 Occupied Modes 1 Unoccupied Mode DISPLAY 2 e Auto Changeover QUICK START Set the clock and go 2 Large Easy To Read Display BASIC OPERATION 3 e Thermoglow Backlight PROGRAMMING Occupied and e Remote Sensor Ready Unoccupied Periods 3 Dry Contact Equipped ADVANCED SETUP 4 e Energy Saving Smart Fan ABOUT ADVANCED FEATURES e Fan Purge IAQ Feature AND OPERATION 9 e Meets California Title 24 WARRANTY 7 IMPORTANT Follow Installation Instructions before proceeding CAUTION SET THERMOSTAT TO MODE OFF PRIOR TO CHANGING SETTINGS IN SETUP OR RESTORING FACTORY DEFAULTS Lt OQ O MODE FAN HOLIDAY PROGRAM SET CLOCK Backlit LCD Display Warmer or Button Cooler or Button Override Button Heat or Cool Indicator Red Heat Green Cool Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Book 1 4 Catalog No 535 329 Printed in U S A Form OM53 4 Pg 1 11 04 Replaces New Tab bot Display 6 1 10 7 PI am ProgramOn Setup yy N74 z i LIL Pm Stop Start H 4 SuMTuWThFSa unoccupied 123 MEA a s o 1 AUTO d Guerre z OFFON lt gt HEAT 1 9 Locked
9. and w i from 1 to 6 degrees 1 to 6 F E os ii gor ZN Adjust the minimum air ba between EF af cooling and heating SA set points a 0 to 6 F D Ai Select the cycles per g 4 N hour limit lt r d cycles per hour if limit defeated lt 7 di d defeat 5 min i Compressor lockout J Pr ig d d1 2 6 a boad r SEL 4 Select the security level ww f G no security in effect t set point range limited 2 1 program on all times oe 3 2 prohibits set point changes a as Adjust the maximum H i 7 allowable heat set point w o ga when security is in effect D D Step 8 only appears if a F Step 7 is not 0 4 I D 35 99 F A A Adjust the mini Lg ee Di just the minimum Lh ZN allowable cool set point _ w al when security is in effect Step 9 only appears if O gt Step 7 is not 0 a ae Va 35 99F Advanced Setup 9 A a8 SF wy Select thermostat operation in degrees Fahrenheit or Celsius 7 S Select the display back light always On or Off after 8 seconds ON Q 3 O00 Adjust the preoccupancy fan purge timer 0 3 hours 0 00 off S a Fad Select the unit ID for Soft Start This is used in multiple installs to stagger equipment turn on times 0 off Each Number 30seconds second delay 0 to 99 wank oman ey JIB Ib Jb
10. d timer operation Occupied and Unoccupied periods ProgramOn pa unoccul pieg OFF indicates the system is turned off OFF z 4 4 a Ld Select Desired Temperature In any mode adjust the 4 desired Set Point Temperature a D wi j A tee 7 pa 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 pres During programmed unoccupied OVERRIDE periods a press of the Override a button will force the thermostat ian into Occupied 1 comfort settings HE LILI Pm gpg aron Dag temporarily oe unoccupied o COSL With each successive push of the ba Override button the override tim ie er will add 30 minutes until the HEAT maximum of 4 hours is reached re 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 2 i with the time remaining in ee override Ek During Override the set point a temperatures are adjustable pro H i vided the keypad is not locked Thik f ProgramOn oak 1 occupied t COOL S Page 3 Programming PROGRAM time period programming Select the maximum number
11. eaning and or replacement and lubrication 2 Damage or repairs required as a consequence of faulty installation misapplication abuse improper ser vicing Unauthorized alteration or improper operation 3 Failure to start due to voltage conditions blown fuses open circuit breakers or other damages due to the inadequacy or interruption of electrical service Damage as a result of floods winds fires lightning accidents corrosive environments or other conditions beyond the control of the Manufacturer Parts not supplied or designated by the Manufacturer or damages resulting from their use Manufacturer products installed outside the continental U S A Alaska Hawaii and Canada Electricity or fuel costs or increases in electricity or fuel costs from any reason whatsoever including addi tional or unusual use of supplemental electric heat 8 ANY SPECIAL INDIRECT OR CONSEQUENTIAL PROPERTY OR COMMERCIAL DAMAGE OF ANY NATURE WHATSOEVER Some states do not allow the exclusion of incidental or consequential damages so the above may not apply to you This warranty gives you specific legal rights and you may also have other rights which may vary from state to state PSs NSO Page 7 Copyright 2004 Carrier Corporation Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Book 1 14 Catalog No 535 329 Printed in U S A Fo
12. imer functions See page 3 Page 2 Quick Start Set the Clock and Go During Setup and Programming Pressing the Mode button selects different flashing items represented in black Pressing the Up and Down buttons will modify the flash ing selection Press the Set Clock button SEF CLOCK to exit Setup screens To adjust the clock or Day use j Ps rar AEN I i Li Pm buttons To adjust the M clock or Day use buttons Press the Set Clock button to exit Setup screens SET CLOCK The thermostat is preprogrammed from the factory to op erate equipment without the need for further program ming To optimize the installation of this thermostat follow the instructions in the Advanced Setup section NOTE The thermostat is not preprogrammed from the factory to operate heat pump systems To control these systems follow the steps in the Advanced Setup section page 4 Basic Operation Select Mode The HEAT setting indicates the temperature the room has to reach before the unit will turn on to heat the room e f HEAT a pt 5 al The COOL setting indicates the temperature the room has 7 to reach before the unit will u turn on to cool the room y CooL AUTO will automatically select heat or cool based on 1 room temperature demand t a 4 H fi Program On will activate the store
13. om midnight to the stop time on the same day For example 9 00pm start 8 00am stop on Monday In this example the program will run from 12 00am Monday to 8 00am Monday and again from 9 00pm Monday to 12 00pm Monday e The Unoccupied settings take effect at all times when 1 the program is on and 2 the current time is outside a preset occupied period For this reason start and stop times are not necessary for unoccupied Ifthe same start and stop times are programmed in for an occupied period then it will run 24 hours e If one occupied period starts and stops within another occupied period the lower occupied num ber has priority For example If Occupied 3 is pro grammed to be on 24 hours and Occupied 2 is programmed to run that day then Occupied 2 set tings will take over from Occupied 3 between Occu pied 2 start and stop times e To program Occupied 2 and Occupied 3 modes repeat programming steps for Occupied 1 Advanced Setup Steps 1 and 2 were performed on page 2 Advanced Setup begins with Step 3 woe C NOTE Each step number is located at Press the Mode button the top right corner of the disiay While holding the Mode bution for easy reference press the Program button to PROGRAM O enter the Advanced Setup screens On wh EN unoccupiedt23 mi Select residential Heat al Pump On or Off 7 ai fh A db 4 Adjust the deadb
14. on While holding the Mode button in press the Up and Down buttons in together The Locked icon will appear on the display Program On unoccupied Press all 3 for Keypad Lockout es MODE EX To unlock the buttons again press and hold the Mode button While holding the Mode button in press the Up and Down buttons in together The Locked icon will disappear from the display DRY CONTACT SWITCH The terminals are nor mally open Closing or completing the circuit will cause the thermostat to enter Occupied 1 This fea ture allows an external device such as a Central Time Clock Occupancy Sensor or a Telephone activated device to force 1 or more thermostats into Occupied 1 For the Dry Contact to work the ther mostat must be in Program On Set Occupied 1 to Off for all 7 days so the Contact closure will be in control When the thermostat is forced into Occupied 1 via the Dry Contact closure the icon Occupied 1 will blink About Advanced Features and Operation HOLIDAY MODE This feature forces the thermo stat into Unoccupied for a preset duration up to 99 days The Holiday setup display is entered as follows T HOUDAY H Th NA med IN e display Na counts down remaining days blinking D Unoccupied also i appears Press the Up or Down buttons to select the number of days the thermostat will be in Holiday mode 0 Off To exit Holiday setup press the Mode button The thermostat will en
15. rm OM53 4 Pg 8 11 04 Replaces New Tab tt
16. ter the Holiday mode when the clock crosses midnight During Holiday mode Unoccupied set points are enforced The Override button is active during Holiday mode It will override to Occupied 1 settings up to 4 hours then return to Holiday mode The Dry Contact Switch is ignored The thermostat will exit Holiday mode at midnight of the final programmed day To terminate Holiday immediately enter the Holiday setup screen and select 0 SOFT START This feature is utilized in multiple thermostat installations controlled by the Dry Con tact terminals Assigning a unique Soft Start num ber to each thermostat will stagger the turn on times even though the Dry Contact closes for all the thermostats connected at the same time Each Soft Start number represents a multiple of 30 sec onds from the Dry Contact closure For example no 1 turn on 30 seconds after Dry Contact clo sure no 2 turn on 60 seconds after closure no 3 turn on 90 seconds after closure and so on See page 5 Step 13 to configure the thermostat for Soft Start DUAL SET POINT BEHAVIOR The adjustable set point range is 35 to 99 degrees in Fahrenheit and 7 to 35 degrees in Celsius When in the modes Heat or Cool this adjustable range is unhampered When adjusting any Auto mode including program ming Occupied and Unoccupied periods the ther mostat will not allow the Heat set point to get closer to the Cool set point than the value programmed as
17. the minimum difference in Step 5 page 4 When entering the Auto mode from Cool the Heat and Cool set points will remain spread apart by the Page 6 amount that they were adjusted prior to entering Auto For example If the Cool set point was set to 80 while in the Cool mode and the Heat set point was adjusted to 70 while in the Heat mode upon enter ing the Auto mode the Heat and Cool set points would be 80 and 70 Both set point temperatures would then move up and down together in this example spread by 10 degrees by pressing the up or down buttons To move the Heat and Cool set point temperatures closer together enter the Cool or Heat mode by pressing the Mode button then adjust the set point temperatures closer together Heat is limited to how close it can come to Cool by Step 5 page 4 REMOTE SENSORS Optional Accessory When connected to terminals RS 5 RS and GND on the back of the thermostat the thermostat will read the temperature from the Remote Sensor and ignore the temperature sensor inside the thermo stat The thermostat automatically recognizes when a Remote Sensor is connected When reading the temperature from the remote the degree icon above the room temperature blinks once a second The Override button on the Remote Sensor works slightly different than the Override but ton on the front panel Each press of the External Override but ton adds 2 hours to the override timer If the timer
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