White Rodgers 1F72 Thermostat User Manual
Contents
1. D THERMOSTAT ae a eo 22 60 22 l E hei a SS Sa Sistem Limit or Limit or Safety Safety Switches Switches SYSTEM Fan MONITOR NEUTRAL Relay SWITCH J 24VAC Auxiliary 1 ACCESSORY Heating Compressor 1 RELAY N O Transformer The accessory relay scheme Contactor 1 GONTACY Class ll Jigs required when safety circuits exist in both systems COMMON 7 Two COMMONS MUST Limit or Limit or BE JUMPERED TOGETHER Safety Safety Switches Switches HOT Changeover Relay is energized in COOL when O B switch is in the O position COMMON Changeover Relay is energized in HEAT when O B switch is in the B position NEUTRAL Jumper required to use a single Aux Heat for both Second Stage Heat and Emergency Heat Pump Transformer Class Il Figure 4 Typical wiring diagram for two transformer systems with safety circuits in BOTH systems www white rodgers com CHECK THERMOSTAT OPERATION NOTE To prevent static discharge problems touch side of ther mostat to release static build up before touching any keys If at any time during testing your system does not operate properly contact a qualified serviceperson Fan Operation If your system does not have a G terminal connection skip to Heating System 1 Turn on power to the system 2 Move fan switch to ON position The blower should begin to operate 3 Move fan switch to AUTO position The blower should stop im2. To prevent compressor and or property damage if the outdoor temperature is below 50 F DO NOT operate the cooling system Cooling System 1 Move SYSTEM switch to COOL position 2 Press 7 to adjust thermostat setting below room tempera ture The blower should come on immediately on high speed followed by cold air circulation 4 Press AA to adjust temperature setting above room tem perature The cooling system should stop operating Before you begin programming your thermostat you should be familiar with its features and with the display and the location and operation of the thermostat buttons Your thermostat consists of two parts the thermostat cover and the base To remove the cover gently pull it straight out from the base To replace the cover line up the cover with the base and press gently until the cover snaps onto the base The Thermostat Buttons and Switches O Up arrow Raises temperature setting Down arrow Lowers temperature setting 8 TIME button PRGM program button RUN program button HOLD button T FAN switch ON AUTO 8 SYSTEM switch COOL OFF HEAT The Display Indicates day of the week Indicates a malfunction with the system MO TU WE TH FR SA SU MALF O iM WW TW WH LVL mt toe Lt BATT EMER Figure 5 Thermostat display buttons and switches www white rodgers com CHECK THERMOSTAT OPERATION CONTINUED FROM FOURTH PAGE O Flame i
3. will appear in the display along with the start time for the 1st heating period and the currently programmed temperature Heating Cooling Schedule Plan WEEKDAY 5 DAY WEEKEND 2 DAY Start Start Period Time Temperature Time Temperature www white rodgers com PROGRAMMING YOUR THERMOSTAT CONTINUED FROM SIXTH PAGE 9 Repeat steps 4 through 8 to complete weekend heating programming 10 When you have completed entering your heating program press RUN Enter Cooling Program If the outside temperature is below 50 F disconnect power to the cooling system before programming Energizing the air conditioner compressor during cold weather may cause personal injury or property damage 1 Move SYSTEM switch to COOL position 2 Followthe procedure for entering your heating program using your selected cooling times and temperatures Check Your Programming Follow these steps to check your thermostat programming one final time before beginning thermostat operation 1 Move SYSTEM switch to HEAT position 2 Press PRGM to view the 1st weekday heating period time and temperature Each time you press PRGM the next heating period time and temperature will be displayed in sequence for weekday then weekend program periods you may change any time or temperature during this procedure Press RUN Move SYSTEM switch to COOL position Repeat step 2 to check cooling temperatures Press RUN to begin program operation O
4. Switch to COOL and lower setpoint below room temperature Verify thermostat and system wires are securely attached Same procedure as diagnostic for No Heat condition except set the thermostat to COOL and lower the setpoint below the room temperature There may be up to a five minute delay before the thermostat clicks in Cooling Heat Cool or Fan Runs Constantly Possible short in wiring Possible short in thermostat Possible short in heat cool fan system Fan Switch set to Fan On ROM Check each wire connection to verify they are not shorted or touching together No bare wire should stick out from under terminal screws Try resetting the thermostat as described above If the condition persists the manufacturer of your system or service person can instruct you on how to test the Heat Cool system for correct operation If the system operates correctly replace the thermostat Furnace Air Conditioning Cycles Too Fast or Too Slow narrow or wide temperature swing 1 The location of the thermostat and or the size of the Heating Cooling System may be influencing the cycle rate Digital thermostats normally provide precise temperature control and may cycle faster than some older mechanical models A faster cycle rate means the unit turns on and off more frequently but runs for a shorter time so there is no increase in energy use If you would like to increase the cycle time clip Jumper W 905 as mention
5. time periods and temperatures for your weekday and weekend programs You must program four periods for both the weekday and weekend program However you may use the same heating and cooling temperatures for consecutive time periods You can choose start times heating temperatures and cooling temperatures independently for both weekday and week end programs for example you may select 5 00 AM and 70 as the weekday 1st period heating start time and temperature and also choose 7 00 AM and 76 as the weekday 1st period cooling start time and temperature Use the table at the bottom of the page to plan your program time periods and the temperatures you want during each period You may also want to look at the sample program table to get an idea of how the thermostat can be programmed Entering Your Program Follow these steps to enter the heating and cooling programs you have selected Set Current Time and Day 1 Press TIME button once The display will show the hour only 2 Press and hold either AA or lt 7 until you reach the correct hour and AM PM designation AM begins at midnight PM begins at noon SAMPLE Heating Cooling Schedule Plan Factory Program WEEKDAY 5 DAY WEEKEND 2 DAY Period Fan Fano Fano ano w Press TIME once The display window will show the minutes only EXAMPLE Li ks L1 me 4 Press and hold either AA or lt 7 until you reach the correct minutes 5 Press TIME once T
6. 7 AM If the building temperature is 65 the difference between 65 and 70 is 5 Allowing 5 minutes per degree the thermostat setpoint will change to 70 at 6 35 AM Cooling allows more time per degree because it takes longer to reach temperature e F C CONVERTIBILITY The factory default setting is Fahrenheit Clipping W904 jumper on the circuit board see fig 1 will alter this feature to Celsius temperature setting Configuration Menu g cm Select Fast on or slow off Second Stage Heat Select Compressor lockout OFF or ON HOLD o g se Select temperature display adjustment higher or lower Press HOLD to advance to next item or TIME to move backwards to previous item www white rodgers com O PROGRAMMING YOUR THERMOSTAT This section will help you plan your thermostat s program to meet your needs For maximum comfort and efficiency keep the following guidelines in mind when planning your program e When heating cooling your building program the tempera tures to be cooler warmer when the building is vacant or during periods of low activity During early morning hours the need for cooling is usually minimal Look at the factory preprogrammed times and temperatures shown below If this program will suit your needs simply press the RUN button to begin running the factory preset program If you want to change the preprogrammed times and tempera tures follow these steps Determine the
7. EL OR PLUMB BOB AND LINE OPTIONAL THERMOSTAT DOES NOT NEED TO BE LEVEL TO WORK PROPERLY HAND OR POWER DRILL WITH 3 16 INCH DRILL BIT IF NEEDED Failure to follow and read all instructions carefully before installing or operating this control could cause personal injury and or property damage REMOVING OLD THERMOSTAT A CAUTION To prevent electrical shock and or equipment damage disconnect electrical power to the system at the main fuse or circuit breaker until installation is complete Before removing wires from old thermostat s switching subbase label each wire with the terminal designation it was removed from 1 Remove Old Thermostat A standard heat cool thermostat consists of three basic parts a The cover which may be either a snap on or hinge type b The base which is removed by loosening all captive screws c The switching subbase which is removed by unscrewing the mounting screws that hold it on the wall or adaptor plate 2 Shut off electricity at the main fuse box until installation is complete Ensure that electrical power is disconnected 3 Remove the front cover of the old thermostat With wires still attached remove wall plate from the wall If the old thermostat has a wall mounting plate remove the thermostat and the wall mounting plate as an assembly 4 Identify each wire attached to the old thermostat 5 Disconnectthe wires from the old thermostat one at atime DO NOT LET W
8. IRES FALL BACK INTO THE WALL 6 Install new thermostat using the following procedures PART NO 37 6367F Replaces 37 6367E 0341 REMOVING OLD THERMOSTAT CONTINUED FROM FIRST PAGE ATTENTION This product does not contain mercury How ever this product may replace a unit which contains mercury Do not open mercury cells If a cell becomes damaged do not touch any spilled mercury Wearing non absorbent gloves take up the spilled mercury and place into a container which can be sealed If a cell becomes damaged the unit should be discarded Mercury must not be discarded in household trash When the unit this product is replacing is to be discarded place in a suitable container and return to White Rodgers at 2895 Harrison Street Batesville AR 72501 2117 for proper disposal 4 MOUNTING AND WIRING A WARNING Do not use on circuits exceeding specified voltage Higher voltage will damage control and could cause shock or fire hazard Do not short out terminals on gas valve or primary control to test Short or incorrect wiring will damage thermostat and could cause personal injury and or KOI AA ELLET N Thermostat installation and all components of the system shall conform to Class Il circuits per NEC code Electric Gas Jumper Fan Option If your emergency or auxiliary system will energize the blower then jumper W906 on the thermostat base must be cut see fig 1 If your emergency or auxiliary heat system requires
9. WHITE RODGERS Installation Instructions for Heating amp Air Conditioning 1F72 5 2 Day Programmable Heat Pump Thermostat YOUR THERMOSTAT REPLACES Description Heat Pump No Aux or Emergency Heat Heat Pump with Aux or Emergency Heat Standard Heat amp Cooling Systems Standard Heat Only Systems Millivolt Heat Only Systems Floor or Wall Furnaces Standard Central Air Conditioning Gas or Oil Heat Electric Furnace Hydronic Hot Water Zone Heat 2 Wires Hydronic Hot Water Zone Heat 3 Wires 2 THERMOSTAT DETAILS Mounting hole O B Terminal Switches Selection W906 for Emergency Heat Second Stage Mounting W903 W904 Clipto Clip for hole Disable Celsius W205 Fan Control EMR Clip for Slow Cycle Feature Figure 1 Thermostat base WHITE RODGERS EMERSON ELECTRIC CO 9797 REAVIS ROAD ST LOUIS MISSOURI 63123 5398 www white rodgers com Printed in U S A CONTENTS Preparations eeee Thermostat Details Removing Old Thermostat ce 1 2 Mounting and Wiring seese 2 3 Check Thermostat Operation 4 5 Programming your Thermostat 6 7 Specifications cccccececceeesceeeesneeessteeeesseees 7 Troubleshooting 0 00 eeeeeeseeeeeeneeeeeneeeeeneeees 7 8 PREPARATIONS Assemble tools required as shown below r SK FLAT BLADE SCREWDRIVER WIRE CUTTER STRIPPER SPIRIT LEV
10. ach Thermostat Base to Wall 1 Remove the packing material from the thermostat Gently pull the cover straight off the base Forcing or prying on the thermostat will cause damage to the unit 2 Connect wires beneath terminal screws on base using appro priate wiring schematic see figs 2 through 4 3 Place base over hole in wall and mark mounting hole locations on wall using base as a template 4 Move base out of the way Drill mounting holes 5 Fasten base loosely to wall as shown in fig 1 using two mounting screws Place a level against bottom of base adjust until level and then tighten screws Leveling is for appear ance only and will not affect thermostat operation If you are using existing mounting holes or if holes drilled are too large and do not allow you to tighten base snugly use plastic screw anchors to secure subbase 6 Push excess wire into wall and plug hole with a fire resistant material such as fiberglass insulation to prevent drafts from affecting thermostat operation Battery Location This thermostat does not require batteries to operate The 2 AAA alkaline batteries are for the thermostat to remember the pro gramming if AC voltage is lost If the display shows BATT when AC power is not present the batteries are low and should be replaced with fresh AAA Energizer alkaline batteries To re place the batteries install the batteries along the top of the base see fig 1 The batterie
11. con is displayed when the SYSTEM switch is in the HEAT position Flame icon is displayed flashing when 2nd stage heat Aux or Emergency is energized Snowflake icon is displayed non flashing when the SYSTEM switch is in the COOL position Snowflake and Flame icon willbe displayed flashing if the thermostat is in lockout mode to prevent the compressor from cycling too quickly EMER is displayed flashing when the system switch is in EMER position E Alternately displays current time and temperature The word HOLD is displayed when the thermostat is in the HOLD mode Displays currently programmed set temperature this is blank when SYSTEM switch is in the OFF position 6 BATT is displayed when 2 AAA batteries are low and should be replaced Configuration Menu The configuration menu allows you to set certain thermostat operating characteristics to your system or personal requirements Press RUN to make sure the thermostat is in the run program mode then press PRGM and RUN at the same time to enter the configuration menu The display will show the first item in the configuration menu The configuration menu chart summarizes the configuration options An explanation of each option follows Press HOLD to change to the next menu item or press TIME to go backwards to the previous item in the menu To exit the menu and return to the program operation press RUN If no keys are pressed within fif
12. ed in the instructions for Hydronic Heating Systems It is not possible to shorten the cycle time If an acceptable cycle rate is not achieved as received or by clipping W 905 contact a local service person for additional suggestions Thermostat Setting and Thermostat Thermometer Disagree 1 Thermostat thermometer setting requires adjustment The thermometer can be adjusted 3 degrees See Temperature Display Adjustment in the Operation section Thermostat Does Not Follow Program i AM or PM set incorrectly in program 2 AM or PM set incorrectly on the clock 3 Voltage spike or static discharge Check current clock and program settings including the AM or PM designations for each time period If a voltage spike or a static discharge occurs use the Reset Operation listed above Blank Display and or Keypad Not Responding 1 Voltage spike or static discharge Use the Reset Operation listed above www white rodgers com
13. he display will show the day of the week Press A or 7 until you reach the current day of the week 7 Press RUN once The display will show the correct time and room temperature alternately Q Enter Heating Program 1 Move the SYSTEM switch to HEAT 2 Press PRGM once MO TU WE TH FR indicating weekday program will appear in the display Also displayed are the currently programmed start time for the 1st heating period and the currently programmed temperature flashing EXAMPLE This display window shows that for the 1st weekday period the start time is 6 00 AM and 70 is the programmed tempera ture this example reflects factory preprogramming 3 Press A or wz to change the displayed temperature to your selected temperature for the 1st heating program period 4 Press TIME once the programmed time will flash Press Ged OF WG until your selected time appears The time will change in 15 minute increments When your selected time is displayed press TIME again to return to the change tempera ture mode 5 Press PRGM once The currently programmed start time and setpoint temperature for the 2nd heating program period will appear 6 Repeat steps 4 and 5 to select the start time and heating temperature for the 2nd heating program period 7 Repeat steps 4 through 6 for the 3rd and 4th heating program periods Weekday heating programs are now complete 8 Press PRGM once SA SU indicating weekend program
14. ing Features Now that you are familiar with the thermostat buttons and display read the following information to learn about the many features of the thermostat SIMULTANEOUS HEATING COOLING PROGRAM STOR AGE When programming you can enter both your heating and cooling programs at the same time There is no need to reprogram the thermostat at the beginning of each season TEMPERATURE OVERRIDE Press AA or wz until the display shows the temperature you want The thermostat will override current programming and keep the room tempera ture atthe selected temperature until the next program period begins Then the thermostat will automatically revert to the program HOLD TEMPERATURE The thermostat can hold any temperature within its range for an indefinite period without reverting to the programmed temperature Press HOLD button HOLD will be displayed Then choose the desired temperature by pressing or Wz The thermostat will hold the room temperature at the selected setting until you press the RUN button to start program operation again ENERGY MANAGEMENT RECOVERY Energy Manage ment Recovery EMR causes the thermostat to start heating or cooling early to make the building temperature reach the program setpoint at the time you specify Heating will start 5 minutes early for every 1 of temperature required to reach setpoint Example You select EMR and have your heating pro grammed to 65 at night and 70 at
15. mediately A CAUTION Do not allow the compressor to run unless the compres sor oil heaters have been operational for 6 hours and the system has not been operational for at least 5 minutes Heating System 1 Move SYSTEM switch to HEAT position If the auxiliary heating system has a standing pilot be sure to light it 2 Press to adjust thermostat setting to 1 above room temperature The heat pump system should begin to operate However if the Flame icon and Snowflake icon are flashing the compressor lockout feature is operating see Configuration menu item 2 3 Adjusttemperature setting to 4 above room temperature The auxiliary heat system should begin to operate and the Flame icon will be flashing 4 Press ws to adjust thermostat setting below room tempera ture The heating system should stop operating Emergency System EMER bypasses the Heat Pump to use the heat source wired to terminal E on the thermostat EMER is typically used when compressor operation is not desired or you prefer back up heat only 1 Move SYSTEM switch to EMER position EMER will flash on the display 2 Press A to adjust thermostat setting above room tempera ture The Aux heating system will begin to operate The Flame icon will display flashing to indicate that the Aux system is operating 3 Press to adjust the thermostat below room temperature The Aux heating system should stop operating 7 CAUTION
16. r 1 00 YOUR THERMOSTAT IS NOW COMPLETELY PROGRAMMED AND READY TO AUTOMATICALLY PROVIDE MAXIMUM COMFORT AND EFFICIENCY Q SPECIFICATIONS ELECTRICAL DATA Electrical Rating 20 to 30 VAC 50 60 Hz 0 05 to 1 0 Amps Load per terminal 1 5 Amps Maximum Total Load All terminals combined THERMAL DATA Setpoint Temperature Range 45 F to 90 F 7 C to 32 C Operating Ambient Temperature Range 32 F to 105 F Operating Humidity Range 0 to 90 RH non condensing Shipping Temperature Range 40 F to 150 F 8 TROUBLESHOOTING Reset Operation If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation you can reset the thermostat by pressing A G7 and TIME at the same time This also resets the factory defaults If the thermostat has power has been reset and still does not function correctly contact your heating cooling service person or place of purchase Batteries For optimum performance we recommend replacing batteries once a year with fresh AAA Energizer alkaline batteries Symptom Possible Cause Corrective Action No Heat No Cool No Fan 1 Blown fuse or tripped circuit breaker Replace fuse or reset breaker common problems 2 Furnace power switch to OFF Turn switch to ON 3 Furnace blower compartment door or Replace door panel in proper position to engage panel loose or not properly installed safety interlock or door switch No Heat 1 Pilot light not li
17. s must be installed with the positive ends to the right www white rodgers com O MOUNTING AND WIRING CONTINUED FROM SECOND PAGE THERMOSTAT SYSTEM ngeov elay SYSTEM Cha er MONITOR R Fan SWITCH Relay 24 VAC 120 VAC Neutral Changeover Relay is energized in COOL when O B switch is in the O position TRANSFORMER Changeover Relay is energized in HEAT when O B switch is in the B position Jumper required to use a single Aux Heat for both Second Stage Heat and Emergency Figure 2 Typical wiring diagram for single transformer systems Class Il If safety circuits are in only one of the systems remove the transformer of the system with NO safety circuits THERMOSTAT CUT AND SYSTEM TAPE OFF SYSTEM MONITOR Limit or SWITCH Safety Switches 120 VAC Hot 24 VAC 120 VAC feaman Neutral BE JUMPERED TOGETHER TRANSFORMER Changeover Relay is energized in COOL when O B switch is in the O position Class Il Changeover Relay is energized in HEAT when O B switch is in the B position Jumper required to use a single Aux Heat for both Second Stage Heat and Emergency Figure 3 Typical wiring diagram for two transformer systems with NO safety circuits Polarity must be observed If the HOT side of the second transformer is jumpered to the COMMON side of the first transformer a short will be made Damage to equipment will occur when power is restored
18. t Re light pilot be intermittent 2 System Switch not set to HEAT 3 Loose connection to thermostat or system Set System Switch to HEAT and raise setpoint above room temperature Verify thermostat and system wires are securely attached 4 Furnace Lock Out Condition Heat may also Many furnaces have safety devices that shut down when a lock out condition occurs If the heat works intermittently contact the furnace manufacturer or local service person for assistance www white rodgers com 8 TROUBLESHOOTING CONTINUED FROM SEVENTH PAGE Symptom Possible Cause Corrective Action No Heat continued 5 Heating system requires service or thermostat requires replacement Diagnostic Set System Switch to HEAT and raise the setpoint above room temperature Within a few seconds the thermostat should make a soft click sound This sound usually indicates the thermo stat is operating properly If the thermostat does not click try the reset operation listed above If the thermostat does not click after being reset contact your heating and cooling service person or place of purchase for a replacement If the thermostat Clicks contact the furnace manufacturer or a service person to verify the heating is operating correctly No Cool 1 System Switch not set to COOL 2 Loose connection to thermostat or system 3 Cooling system requires service or thermostat requires replacement Set System
19. teen minutes the thermostat will revert to normal operation 1 Inthe run mode if the setpoint temperature is manually raised by 3 F 2 C or more above the actual temperature with the TEMPERATURE UP key and the fast second stage feature is enabled FA on the second stage will energize immediately With FA off second stage will not energize until the setpoint temperature is 1 F or more above actual temperature for more than ten minutes 2 Select Compressor Lockout CL OFF or ON Selecting CL ON will cause the thermostat to wait 5 minutes before turning on the compressor if the heating and cooling system loses power It will also wait 5 minutes minimum between cooling and heating cycles This is intended to help protect the compressor from short cycling Some newer compressors already have a time delay built in and do not require this feature Your compressor manufacturer can tell you if the lockout feature is already present in their system When the thermostat compressor time delay occurs it will flash the Snowflake and Flame icons for about five minutes 3 Select Temperature Display Adjustment 3 LO to 3 HI Allows you to adjust the room temperature display up to 3 higher or lower Your thermostat was accurately calibrated at the factory but you have the option to change the display temperature to match your previous thermostat The current or adjusted room temperature will be displayed on the left side of the display Operat
20. that the thermostat energize the fan circuit do not cut jumper W906 If you are unsure of your application contact a qualified service person F or C Selection The factory default setting for temperature display is Fahrenheit If you want the temperature in Celsius clip jumper W904 Fast or Slow Cycle Selection The factory default setting is fast cycle which cycles 1st stage at approximately 1 2 F and 2nd stage 0 75 F If you prefer slow cycle clip jump W905 The 1st stage and 2nd stage would be 1 5 F and 1 2 F respectively Energy Management Recovery EMR This thermostat is set to operate with EMR This causes the thermostat to start the heating or cooling system early to have the room temperature reach the program setpoint at the time the period is to start To disable EMR clip jumper W903 see Fig 1 O B Terminal Switch Selection The O B switch on this thermostat is factory set to O position This will accommodate the majority of heat pump applications which require the changeover relay to be energized in COOL If the thermostat you are replacing or the heat pump being installed with this thermostat requires a B terminal to energize the changeover relay in HEAT the O B switch must be moved to the B position A CAUTION Take care when securing and routing wires so they do not short to adjacent terminals or rear of thermostat Personal injury and or property damage may occur Att
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