Universal Electronics Thermostat 975 User's Manual
Contents
1. 1 Keypad Lockout 36 Liquid Crystal Display 32 Operation Manual 26 Programmed 26 Program Entering Your Indefinite Hold Planning Your Temporary Override INSTALLATION ORIENTATION PROGRAMMING 26 Schedule Sample Programs 28 Personal Programs 30 Set Clock 26 Day 26 Program 26 Setpoint Range 32 System and Thermostat Diagnosis 37 Thermostat Startup After Total Power Loss Vacation 37 6438A 0225 NOTES WHITE RODGERS Controlling Indoor Comfort Worldwide Since 1937 www white rodgers com The Emerson logo is a White Rodgers is a division trademark and service mark of Emerson Electric Co of Emerson Electric Co Printed in U S A PART NO 37 6438A 02232. Three AA alkaline batteries allow the thermostat to maintain its program in the event of a power loss They also operate the back light for viewing the display in low light conditions and allow for armchair programming CHECK BATTERY will be displayed when the batteries are low To assure optimum perfor mance change batteries once a year or when CHECK BATTERY is displayed When changing batteries always replace all three batteries with new AA alkaline batteries for optimum performance we recommend Energizer batteries If the batteries must be changed frequently it may indicate a problem with the system Contact the heating cooling system manufac turer or a service person Remember that excessive use of the display 37 light will reduce battery life System and Thermostat Diagnostics The display will indicate CHECK SYSTEM if the room temperature does not rise within two hours of the call for heat After two hours the thermostat will quit calling for heat for one minute this allows some furnaces to reset and call for heat again It will repeat this sequence three times If the temperature still does not rise it will continue to call for heat This normally indicates the heating system is not working correctly You may wish to consult your furnace manufacturer or service person The display will indicate CHECK STAT if one of the following occurs Features One of the buttons is stuck do
3. Field installed jumper wire NOTE Ensure that RED RH RC jumper wire provided with thermostat is connected between thermostat s RH and RC terminals for proper O From fan relay operation with this system From cooling system See page 10 for letter identification Figure 8 Typical wiring diagram for single stage heat pump four wire single transformer system 14 CONFIGURATION JUMPERS Before turning power on to the system the jumpers on the back of the thermostat must be configured to operate correctly with the system equipment This thermostat is configured from the factory to operate a standard fossil fuel gas oil etc forced hot air system with a single stage air conditioning compressor and fan This is the correct configuration for any system that DOES NOT require the thermostat to energize the fan on a call for heat If you have an electric heat or other system that REQUIRES the thermostat to control the fan find and cut the jumper lead labelled W914 see fig 9 This will allow the thermostat to energize the fan instantly on a call for heat If you are unsure if the system requires the thermostat to control the fan contact a qualified heating and air condi tioning service person Clip for remote sense 3 pin connector Clip for electric heat A remote sensor can be used with this thermostat To use a remote sensor jumper W922 must be clipped see fig 9 and the REMT SEN option in t
4. Night NHT O Start Time O Temperature 3l Programming FEATURES Large Lighted Liquid Crystal Display LCD The large numbers and letters on your LCD screen make it easy to see In low light conditions press the button on top of the thermostat and the display will light up for three seconds For ten minutes after pressing the light button pressing any other button will light the display for ten seconds The display light uses power from the 3 AA alkaline batteries installed Exces sive use of the display light will reduce battery life The thermostat display alternately shows the current time and the current temperature on the left side The display also shows the temperature you have programmed or set on the right side of your screen Setpoint Range 45 99 F 7 37 C You may set your thermostat to any temperature from 45 to 99 F If you prefer you may configure the thermostat to display Celsius This is covered in the CONFIGURA TION section page 25 step 9 Selectable Energy Management Recovery EMR EMR causes the thermostat to start operating the system early in order to make the building temperature reach your program setpoint at the time you specify In heating the thermostat will start 5 minutes early for every 1 F difference between the 32 room temperature and the next programmed temperature In cooling the thermostat uses 15 minutes per F EXAMPLE If the temperature in
5. Relay Energized in Heating Single Stage Heat Pump System EC Jumper Wire E TRANSFORMER 24 VAC Side EE 120 VAC Side 10 Hot Side M Neutral Side EM HEATING TRANSFORMER Ke COOLING TRANSFORMER P Jumper Wire field installed Ale ARNA a 565 5 From heating system 2 From 24 VAC transformer NOTE Thermostat must have batteries installed From fan relay From cooling system See page 10 for letter identification Figure 5 Typical wiring diagram for two wire millivolt heating amp three wire cooling system 11 Installation WIRING DIAGRAMS From zone valve From 24 VAC transformer NOTE Thermostat must have batteries installed through zone valve NOTE Ensure that RED RH RC jumper wire provided with thermostat is Red jumper wire provided connected between thermostat s RH and RC terminals for proper operation with this system See page 10 for letter identification Figure 6 Typical wiring diagram for heat only three wire zone valve system 12 From heating system 2 From 24 VAC heating transformer 9 From 24 VAC cooling transformer From fan relay From cooling system See page 10 for letter identification Figure 7 Typical wiring diagram for heat cool five wire two transformer system 13 Installation WIRING DIAGRAMS J7W2 HWHWHWHWyHWWWW2 _ _ __ 9090907 From heating system Red jumper wire provided
6. head pressure to stabilize To override this feature for one cycle while testing thermostat operation press SET and SET buttons at the same time OPTIONAL REMOTE TEMPERATURE SENSE An optional remote sensor part F145 1328 can be attached to this thermostat and may be wired as far away as 200 feet The thermostat will use the temperature in the remote location as its room CHECK THERMOSTAT OPERATION temperature display This is an excellent feature if the thermostat is in a poor location for sensing temperature or the thermo stat is in a separate room to prevent tampering NOTE The remote sense feature will not work if the system does not provide 24V to the thermostat example millivolt heating only systems or 3 wire zone valves To use a remote sensor jumper W922 must be clipped see figure 9 and the REMT SEN option in the configuration menu must be set to ON After the thermostat is installed and configured do the following to ensure proper operation FAN OPERATION If your system does not have a G terminal connection skip to Heating System section 1 Turn power on to the system 2 Press QED until FAN ON is displayed The fan should begin to operate 3 Press GQ until FAN AUTO is displayed The fan should stop operating 21 Installation HEATING SYSTEM 1 Press until HEAT is displayed If the heating system has a standing pilot ensure that it is lit 2 Press
7. on your building and equipment as well as outdoor temperature conditions 19 Installation CONFIGURATION would be set so the fan shuts off just as the cool air is exhausted If this timing is set too long the fan may begin blowing warm air before it shuts off Shortening the fan off delay will prevent this COMPRESSOR LOCKOUT This thermostat is designed to protect the system against premature compressor failure by locking out the compressor for at least five minutes after each cycle When the thermostat is in compressor lockout the word COOL will flash on the display During this period the compressor will not be energized If the system has short cycle protection this feature can be disabled Lockout Bypass Option FOR QUALIFIED SERVICE TECHNICIANS USE ONLY HOMEOWNERS SHOULD NOT USE THIS FEATURE DUE TO POSSIBILITY OF EQUIPMENT OR PROPERTY DAMAGE OR PERSONAL INJURY DISABLING HEAT COOL OR AUTO MODES The automatic changeover feature of this thermostat can be disabled automatic changeover allows the thermostat to switch between heating and cooling to maintain temperature If this thermostat is controlling a heating only or cooling only system the heat cool or auto modes can be disabled 20 COMPRESSOR SHORT TERM CYCLE PROTECTION This thermostat has a built in short term 5 minute time delay During this 5 minute period the thermostat will lock out the compressor to allow
8. should be replaced BATTERY appears when the thermostat is running on battery power only CHECK STAT appears when the thermostat detects certain problems within itself CHECK SYSTEM appears when the thermostat detects certain problems in the heating system BA Laird 17 FAN ON FILM HEAT 1 7 I Lh MON Figure 1 The Display 20 Indicates the length of time remaining in a temporary hold condition Also indicates the length of time remaining in VACATION mode Displays FAN ON when the fan is operating continuously Displays FAN AUTO when the fan cycles with the heating or cooling system 22 Displays the setpoint temperature 23 Alternately displays room temperature and time of day D Shows the current day of the week When programming shows the day s being programmed E The word HEAT or COOL will appear above or below the setpoint if area 18 is needed to display other information INSTALLATION DESCRIPTION This White Rodgers Automatic Setback Digital Thermostat uses microcomputer technology to provide precise time and temperature control This SPECIFICATIONS Model 975 7 Day programming ELECTRICAL DATA Electrical Rating 17 to 30 VAC 50 60 Hz 0 05 to 1 5 Amps 1 5 Amps maximum total load all terminals combined thermostat offers the flexibility to design heating and cooling programs that fit personal needs This thermostat is adaptable to most 24 Volt residential
9. the room is 65 F and the thermostat is programmed for 70 F at 7 AM the thermostat will start approxi mately 25 minutes early The difference between the room temperature 65 F and the setpoint 70 F is 5 5 X 5 minutes per F 25 minutes The setpoint on the display will actually change to display 70 about 25 minutes early The maximum time the thermostat can start early in heating is 75 minutes The maximum time the thermostat can start early in cooling is 3 hours and 45 minutes Cooling can start earlier because it takes longer for cooling systems to reach the desired temperature To select or deselect this feature refer to the CONFIGURATION section page 24 step 1 Adjustable Temperature Display The room temperature display can be adjusted to read higher or lower by following the configuration menu and adjusting the temperature to a higher or lower value The thermo stat is calibrated at the factory to display a very accurate room temperature but due to various conditions and or personal prefer ence you may wish to adjust the thermostat display higher or lower up to 5 F For example if the thermostat displays a room temperature of 70 but you want it to display 73 you can adjust it To adjust refer to the CONFIGURA TION section page 25 step 8 Factory Preprogrammed Times and Temperatures This thermostat has been pro grammed at the factory The chart in the programming example
10. to adjust thermostat setting above room temperature The heating system should begin to operate 3 Press to adjust temperature below room temperature The heating system should stop operating CHECK THERMOSTAT OPERATION COOLING SYSTEM WARNING To prevent compressor and or property damage if the outdoor temperature is below 50 F 10 C DO NOT operate the cooling system 1 Press until COOL is displayed 2 Press to adjust thermostat setting below room temperature The fan should come on after the fan on delay time if any followed by cold air circulation 3 Press to adjust temperature setting above room temperature The cooling system should stop operating and the fan should stop running after the fan off delay time if any HOLD mode and will maintain factory preset temperatures RESETTING THERMOSTAT The thermostat can be reset back to factory default programs and configuration options Removing power from the thermostat will not reset it to the default settings Before resetting the thermostat you may want to make note of the previously selected configuration options and programming To reset the thermostat press and release PROGRAM GT then press the GETI TIME and buttons at the same time This will reset the thermostat to factory default programs and configuration The display will momentarily go blank then all segments on the display will momentarily be shown The the
11. will change to show the first option on the configuration menu The chart on page 16 briefly describes each option on the menu Following are more detailed descriptions of the options recommended for selection by the installer For more detailed descriptions of other options refer to the Operating Instructions Make selections for each option as required When the option is set to your choice press TIME GZ to change the display to the next step To return to a previous option press TIME ES To exit the configuration menu at any time press PROGRAM SELECTABLE ENERGY MANAGEMENT RECOVERY Energy Management Recovery EMR causes the thermostat to start operating the system early in order to make the building temperature reach the programmed setpoint at the programmed time In heating the thermostat will start 5 minutes early for every F difference between the room temperature and 18 the next programmed temperature In cooling the thermostat uses 15 minutes per F The maximum time the thermostat can start early in heating is 75 minutes The maximum time the thermostat can start early in cooling is 3 hours and 45 minutes Cooling can start earlier because it takes longer to reach temperature ADJUSTABLE ANTICIPATION This option allows the cycle times in heating and cooling to be increased or decreased The factory set values can be adjusted higher for longer cycles or lower for shorter cycles The adjustm
12. Universal Comfort Set Presence 90 Series PREMIUM Model 975 mms Installation and Operating Instructions Retain for Future Use s EMERSON WHITE RODGERS Climate Technologies Easy Menu Driven Set Up and Programming Premium options to customize the thermostat to fit your application INTRODUCTION Thank you for purchasing your new Model 975 thermo stat White Rodgers has been producing energy saving controls for over 60 years We have been designing and producing the Comfort Set family of electronic program mable thermostats since 1982 Model 975 is the third generation of the electronic programmable family We believe you will find that Model 975 is the most user friendly and technologically Introduction Installation advanced thermostat available today You will find information about thermostat buttons and display in the component section beginning on page 2 Installation instructions begin on page 4 Configuration Features Index Instructions for optional thermostat configuration begin on page 23 Program ming information begins on page 26 Descriptions of the thermostat s features begin on page 32 We have also added thumb tabs to help you find sections of the manual ORIENTATION THE THERMOSTAT BUTTONS See inside front cover for illustration showing button locations 1 Blue arrow Lowers temperature setting 45 F or 7 C minimum 2 Red arrow Raises tem
13. cate HOLD and the number of hours remaining in the hold period will be indicated with the word HRS To adjust the length of time for the override press TIME GD or TIME HOLDTILL will be displayed as well as the HOLD period expiration time Press TIME D or TIME buttons until you reach the time you would like it to resume the program The TIME or TIME GD buttons adjust the time in 15 minute increments This programmed hold time has a 19 hour maximum and 15 minute minimum Beyond 19 hours you may wish to use the vacation hold feature page 36 If you need to you can adjust the temperature up or down Indefinite Program Hold If you want to operate the thermo stat to keep a set temperature without a program running press PROGRAM CD The or buttons can be use to raise or lower the temperature The thermostat will hold the set temperature until you return to the program by pressing PROGRAM Thermostat Startup After Total Power Loss On installation or when power is restored after a total power loss to the thermostat your thermostat will automatically maintain a heating 35 temperature of 62 F 16 C and a cooling temperature of 85 F 29 C A total loss of power will occur when you lose 24 VAC power to the thermostat and you have no battery backup If this happens the thermostat display will go blank in about one minute after power loss When power is restored the thermostat will automatically r
14. d installer setting COMP LOCK Recommend installer setting SYSTEM 24 8 TIME GD OF 5 LO to Adjusts temperature display higher or lower 2 5 HI 9 TIME AG Adjusts temperature display to F or C TIME REMT SEN Recommend installer setting TIME PART LOCK Selects partial keypad lockout OFF or ON OFF TIME Gy ee Selects total keypad lockout OFF or ON PROGRAM Gp Returns to normal operation 25 Configuration PROGRAMMING MANUAL OPERATION Your Comfort Set 90 thermostat can be used to control temperature manually without programming For manual operation press to select HEAT or COOL then press PROGRAM CM Use or to set the tempera ture as desired PROGRAMMED OPERATION Planning Your Program The sample schedule pages 28 amp 29 shows the factory installed programs for heating and cooling The heating and cooling programs are separate and must be pro grammed individually To use the factory program set the clock and press PROGRAM with the thermostat set to Heat Cool or Auto Fill out the blank schedules pages 30 amp 31 with the time and temperatures you want in your program Fill in every space for your program The same temperature can be repeated more than once if you do not want the temperature to change over several time periods Entering Your Program To Set the Clock 1 Press PROGRAM Gp 2 Press SET GQ The display will show t
15. ent range for HEATING is from 2 to 40 The factory preset is 5 The adjustment range for COOLING is from 9 to 40 The factory preset is 14 The recom mended initial setting for hydronic systems is 35 The cooling will not go below 9 because compressors require a longer cycle The chart below shows how this adjustment range affects thermostat performance PROGRAMMABLE COOL FAN ON AND FAN OFF DELAY This option allows a selection of a fan on delay of 1 to 5 seconds on a call for cool and 1 to 127 seconds of fan off delay after the thermostat has satisfied the call for cool A short delay to allow the A coil to cool off before the fan turns on may be preferred This also allows the compressor and the fan to come on at slightly different times which allows full power to the compressor on start up The fan off delay allows the fan to continue running after the compres sor has shut off This distributes the cooling that would otherwise stay trapped in the air conditioning coils through the ducts Ideally the timing Er HEATING COOLING Anticipation Value Cycle Length Differential Temperature Cycle Length Differential Temperature 9 20 0 6 1 0 F 0 3 0 6 C Shorter 0 6 1 0 F 0 3 0 6 C 21 40 1 0 1 6 F 0 6 0 9 C Longer 1 0 1 6 F 0 6 0 9 C Longer Hydronic These numbers are approximate and represent operation with a typical system Actual temperature differentials and run times may vary widely based
16. ent time will display Press TIME E to adjust the time in 15 minute increments You may wish to select a few hours in advance of your expected return to allow time to reach the desired 36 temperature Your thermostat is now programmed to hold the temperature you selected through your vacation for HEAT COOL or AUTO After 20 seconds the display will return to time temperature alterna tion and will display VACA Pressing VACATION again will activate the vacation mode settings Pressing PROGRAM cancels this feature and begins running your normal program Keypad Lockout This security feature allows you to lock out the keypad to prevent unauthorized tampering with the program Two levels of security are available Total Keypad Lockout or Partial Keypad Lockout Total Keypad Lockout renders all buttons inoperative Partial Keypad Lockout allows only the or to operate for temporary temperature overrides It also limits the tempera ture to the maximum heating and minimum cooling temperatures used in your program This is especially useful in buildings where unsched uled events are common Anyone can change the temperature but only between the temperatures you set and only for two hours or the number of hours you specify if you set up your Hold Till timing see Temporary Program Override page 34 To select or deselect this feature refer to the CONFIGURA TION section page 25 steps 12 and 13 Battery Back Up
17. eturn to the temperatures listed above If this happens set the clock and day of the week use steps 1 through 6 from Entering Your Program page 26 then select HEAT COOL or AUTO using the GED button and press PROGRAM to resume operation with your previously set program Features Daylight Savings Time Button One button adjustment allows you to change your thermostat clock between Standard Time and Daylight Savings time Simply push the DAYLIGHT SAVINGS TIME button to advance the time forward one hour in the Spring In the Fall press the DAYLIGHT SAVINGS TIME button twice to fall back an hour If you push it three times in a row in less than 30 seconds it will return to the original time setting After clock adjustment press PROGRAM to resume your normal program Programmable Vacation Time Temperature Operation The VACATION button allows you to program the thermostat to hold a constant temperature for 1 to 29 days At the end of the day and time you select the thermostat will return to normal program operation To program the number of days press VACATION VACA HOLD TILL will be displayed The display will also show DAYS flashing and the number 5 To change the number of vacation days press TIME Gy or TIME ED Press or to set the temperature you wish to maintain while away While still in the vacation mode set the time you want the program to resume by pressing SET once The curr
18. for typical systems only Refer to equipment manufacturers instructions for specific system wiring information From heating system From 24 VAC transformer Red jumper wire provided NOTE Ensure that RED RH RC jumper wire provided with thermostat is connected between thermostat s RH and RC terminals for proper See page 10 for letter identification operation with this system Figure 2 Typical wiring diagram for heating only two wire single transformer system 8 From heating system From 24 VAC transformer NOTE Ensure that RED RH RC jumper wire provided with thermostat is connected between thermostat s RH and RC terminals for proper operation with this system O Red jumper wire provided NOTE For three wire heat only system connect terminals G W and RH For cool only system connect terminals Y G and RH Red jumper wire provided Red jumper wire provided See page 10 for letter identification Figure 3 Typical wiring diagram for heat only cool only amp heat cool single transformer system 9 Installation WIRING DIAGRAMS P 0 0 0 0 0 0 g a oO From millivolt system NOTE Thermostat must have batteries installed Figure 4 Typical wiring diagram for millivolt system EX Millivolt System Eq Zone Valve Cooling System PP Fan Relay H Heating System Changeover Relay Energized in Cooling Single Stage Heat Pump System Le Changeover
19. forced Standard Systems Fuel gas oil electric Type Heating Cooling Heat Only Hot Water or Steam Systems Single Stage Compressor Heat Pump THERMAL DATA Setpoint Temperature Range 45 to 99 F 7 to 37 C 4 air hydronic hot water or steam millivolt electric heat zone and single stage heat pump systems Operating Ambient Temperature 32 to 110 F 0 to 43 C Operating Humidity Range 90 non condensing max Shipping Temperature Range 4 to 131 F 20 to 55 C PRECAUTIONS WARNING 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 property damage Do not use on circuits exceeding specified voltage Higher voltage will damage thermostat and could cause shock or fire hazard Thermostat installation and all components of the system shall conform to Class II circuits per the NEC code CAUTION To prevent electrical shock and or equipment damage disconnect electric power to system at main fuse or circuit breaker box until installation is complete Read all instructions thoroughly before beginning installation This thermostat is intended for use with a low voltage system Do not use directly on a line voltage system unless an isolation relay transformer is installed Installation Do not exceed ratings shown in the Specifications section p
20. he configuration menu must be set to ON i Figure 9 Jumper locations 15 Installation CONFIGURATION MENU Displayed Factory Default Press or to select COMMENTS EMR OFF ects EMR option ON or OFF ON SET CYCL HEAT 02 40 Adjusts heat anticipation value 2 through 40 05 SET CYCL COOL 09 40 ljusts cool anticipation value 9 through 40 14 COOL FAN DELA OFF 01 127 ljusts cool fan off delay 1 through 127 sec 01 TIME cD COOL FAN DELA ON 01 05 Adjusts cool fan on delay 1 through 5 sec 04 cD COMP LOCK OFF Selects compressor lockout ON or OFF see NOTE ON e fi TIME Gy SYSTEM HEAT OFF Selects system switch choices for heat only HEAT OFF COOL AUTO COOL OFF cool only heat cool or automatic changeover HEAT OFF COOL Adjusts temperature display higher or lower Adjusts temperature display to F or C urns Se Turns beeper ON or OFF REMT SEN ects remote sensor OFF or ON OFF PART LOCK ects partial keypad lockout OFF or ON OFF LOCK ects total keypad lockout OFF or ON OFF 14 PROGRAM ED Returns to normal operation Installation CONFIGURATION INSTALLER CONFIGURATION The configuration settings can be changed at any time to meet system or personal requirements Press PROGRAM to make certain the thermostat is in the run program mode then press TIME E and TIME BACK at the same time to enter the configuration menu The display
21. he hour Use TIME Gp or TIME to set to the current hour and AM PM designa tion 26 3 Press SET again The display will show minutes Use TIME or TIME GE to set to the current minutes 4 Press PROGRAM Gp To Set the Day 5 Press SET E The display will indicate a day of the week Use TIME or TIME E to set to the current day of the week 6 Press PROGRAM GB To Set the Program 7 Press to select HEAT for heating program or COOL for cooling program 8 Press PROGRAM one time The display will show MOR and the settings for time and temperature 9 If you program Monday the first time you press PROGRAM it will be copied to the rest of the week To program the other days of the week press EE DAY to until you reach the day you wish to change and follow Steps 10 11 amp 12 You can also copy the program from one day to another To copy press J COPY The display will show COPY and all the other days of week will be flashing Press GI COPY again to copy the day in to the rest of the week or press TIME GD or TIME until you reach the day you want to copy to and press J9 COPY 10 Press TIME or TIME ERP to set the time on the display as selected in your HEATING or COOLING Schedule Be sure to check the AM or PM on the display 11 Press the red or blue button to adjust the tempera ture to match your schedule If you want the fan ON continuously during this period press GETI 12 Pres
22. mostat to display the words CHNG FLTR change filter after a set time of fan operation This is a reminder to change or clean your air filter The factory set interval for CHNG FLTR to be displayed is 200 hours of fan operation This can be set anywhere from 0 to 1950 hours in 25 hour increments A selection of 00 will cancel this feature When CHNG FLTR is displayed you can clear it by pressing the FILTER button This resets the timer and starts counting the hours until the next filter change The following steps will allow you to change the number of hours for filter change out 1 If you see CHNG FLTR on the display press the FILTER button once to reset the timer If you do not see CHNG FLTR proceed to step 2 When the FILTER button is pressed 34 once the display will show the number of hours remaining before CHNG FLTR indicator will display 2 Press the FILTER button The display will show SET FILTER TIME and will show the number of hours to filter change 3 Press TIME G or TIME to change the time to your requirements 4 Press PROGRAM to return to the normal operating mode NOTE If unsure what interval to use between filter changes or cleaning contact the manufacturer of your heating cooling equipment Temporary Program Override Any time your program is running and you would like to override it for a specific amount of time press or until the tempera ture you want is displayed The display will indi
23. of the labels enclosed with the new thermostat Disconnect the wires from the old thermostat one at a time DO NOT let the wires fall back into the wall Install the new thermostat using the following procedures ATTACH BASE TO WALL Remove packing material from the thermostat Place fingers of one hand on the center top and bottom portion of the thermostat Grasp the base in the other hand on top and bottom center and gently pull straight out Forcing or prying on the thermostat will cause damage to the unit Place the base over the hole in the wall where the wires come out and mark mounting hole locations using the base as a template Drill 7 16 pilot holes and install screw anchors in the wall Run wires through hole in base and attach base to wall see fig 1 Insert the wires into the terminals on the base using the appropriate wiring diagram and tighten the terminal screws CONFIGURING AND PROGRAMMING Before the power is turned on the thermostat must be configured to operate properly with the system See the CONFIGURATION section of this manual This thermostat can be programmed for automatic temperature control Refer to Operating Instructions for Mounting screws Figure 1 Thermostat base and terminals Beers Pull wires through this opening Insert wires into terminal holes then tighten screws Screw anchors Installation WIRING DIAGRAMS 9090907 All wiring diagrams are
24. perature setting 99 F or 37 C maximum The yellow indicator glows when the system is operating oO This button on top of the cover lights the display Used to initiate or review thermostat programming Q Used with TIME E TIME to set the clock Q Used to adjust the time backward or to select the previous menu item Used to adjust the time forward or to select the next menu item Used with TIME GD TIME to set the current day 10 Used to advance operation to the next program period 11 Used to manually override programming to hold at a selected temperature 12 Used to enter and configure the VACATION mode 13 Selects fan operation see The Display This button is also used to program the fan to run continuously during a program period 14 Used to set the filter change out time or to set the filter change timer 15 Sets the system mode HEATing OFF COOLing or AUTOmatic changeover 16 Used to adjust the clock one hour forward or back 17 Used to start or return to program operation THE DISPLAY 18 Displays system mode HEAT OFF COOL AUTO HOLD or VACA During programming displays the time period MOR DAY EVE NHT being programmed In the configuration menu the menu item name is shown one word at a time PRGM MODE EMR COOL FAN DELA OFF etc q 1 E CHECK BATTERY appears when the AA alkaline batteries are weak and
25. receding page If in doubt about the electrical ratings of your heating cooling system have it inspected by a qualified heating and air condition ing contractor or licensed electri cian All wiring must conform to local and national electrical codes and ordinances This control is a precision instru ment and should be handled carefully Rough handling or distorting components could cause the control to malfunction INSTALLATION ATTENTION This product does not contain mercury However 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 with sand or other absorbent material 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 for proper disposal REMOVE OLD THERMOSTAT Shut off electricity at main fuse or circuit breaker box until installation is complete AND the jumper leads on the back of the new thermostat are configured properly Remove the front cover of the old thermostat With wires still attached remove wall plate from the wall Identify each wire attached to the thermostat using one
26. rmostat will then go into the 22 CONFIGURATION The configuration menus allow you to set certain thermostat operating characteristics to your system or personal requirements To enter the User Configuration menu press PROGRAM to make sure the thermostat is in the run program mode then press TIME cD and TIME ED at the same time to enter the configuration menu The display will show the first item in the configuration menu The following chart pages 24 amp 25 describes each item on the menu and the applicable model s Set these according to your personal preference To exit the menu press PROGRAM ED To return to the menu at any time press PROGRAM E then press TIME cD and TIME at the same time While in the configuration menu if you do not press any buttons for two minutes the thermostat will revert to normal operation 23 Configuration You should contact a qualified service person to change items that are indicated Recommend Installer Setting Operator may change shaded options if desired We recommend that other options be set by the installer CONFIGURATION MENU Press Button s Displayed Factory Default Press Gay or to select COMMENTS EMR Selects EMR option ON or OFF ON SET CYCL HEAT Recommend installer setting SET CYCL COOL Recommend ins setting Recommend i COOL FAN DELA OFF COOL FAN DELA ON Recommend installer setting Recommen
27. s PROGRAM one time MOR on the display will change to DAY Repeat steps 10 and 11 to enter time and temperature for this period 13 Press PROGRAM QHP to continue through the entire schedule entering time and temperature for each period When 27 you are satisfied that your program matches your schedule press PROGRAM Gp Programming is now complete for this mode and your program is running 14 To program the other mode repeat the procedure from step 6 Programming 7 Day Sample HEAT Program Schedule Shows factory programming C 10 00 PM 62 F 16 C 21 C 10 00 PM 62 F 16 C 21 C 10 00 PM 62 F 16 C 62 F 16 C 21 C Morning MOR Day DAY Evening EVE Night NHT O Start Time O Temperature 28 7 Day Sample COOL Program Schedule Shows factory programming M 78 F 25 C 78 F 25 C 82 F 27 C M 78 F 25 C 85 F 29 C 78 F 25 C 78 F 25 C 85 F 29 C 78 F 25 C 78 F 25 C 8 00AM 85 F 29 C 5 00PM 78 F 25 C 10 00PM 82 F Morning MOR Day DAY Evening EVE Nigh NHT O Start Time O Temperature a Programming 7 Day Personal HEAT Program Schedule Morning MOR Day DAY Evening EVE Night NHT O Start Time O Temperature a 7 Day Personal COOL Program Schedule Morning MOR Day DAY Evening EVE
28. s section lists these factory settings If the times and temperatures are the same as your schedule you may simply run the factory installed program by pressing PROGRAM GUD Arm Chair Programming The thermostat uses 24 VAC power supplied by the system for normal operation However if the installed AA batteries are providing 33 sufficient power you can program the thermostat away from the wall If the thermostat indicates low battery power CHECK BAT TERY refer to the Battery Back up feature page 37 Programmable Fan Control This feature allows you to have your fan operate continuously through one or more programmed time periods This is useful if you want to have constant air circulation in your location during a specific time period If you do not use this feature the fan will cycle normally with the heating and cooling system Automatic Changeover If you have a heating cooling system the thermostat can be set to automatically switch the system from heating to cooling as needed To set your thermostat to this operating mode press button until AUTO is displayed on the screen Pressing the and buttons at the same time will change the setpoint temperature displayed to the setpoint of the other mode This will allow you to modify both the HEAT and COOL setpoints to accommodate a HOLD condition while in Automatic Changeover mode Air Filter Change Out Indicator This feature allows the ther
29. wn or in Check buttons make sure nothing is pushing them in The thermostat sensor is not functioning If using a remote sensor check connections wiring and power After checking the above press PROGRAM to reset the display If this does not clear the display disconnect power and remove the batteries for five minutes If these checks fail to solve the problem the thermostat should be replaced Compressor Short Cycle Protection Your thermostat is designed to protect your system against premature compressor failure by Jocking out the compressor This ensures that the compressor will stay off for at least five minutes on each cycle When the thermostat is in compressor lock out the word COOL will flash During this period the compressor will not be energized INDEX Adjustable Temperature Display 33 Air Filter Change out Indicator 34 Arm Chair Programming 33 Automatic Changeover 33 Battery Back Up 37 COMPONENTS 2 Thermostat Buttons 2 Display 3 Compressor Short Cycle Protection 38 CONFIGURATION 23 Configuration Menu Chart 24 Copy 27 Daylight Savings Time Button 36 Energy Management Recovery 32 Fan Control Programmable 33 Factory Preprogrammed 33 FEATURES 32 INTRODUCTION
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