White Rodgers 90 SERIES User's Manual
Contents
1. AUTO with SYSTEM button HEAT EMER OFF COOL HEAT EMER OFF COOL EMER appears in sequence after HEAT if HEAT AUTO for heat pumps for heat pumps PUMP is selected REM SENA Selects Remote Sensor A connected to SA if ON OFF REM SEN b Selects Remote Sensor B connected to SB if ON OFF REM SEN C Selects Remote Sensor C connected to SC if ON OFF TIM STAT SEN L OFF When OFF disables local sensor if a remote sensor 7 ON is enabled PROGRAM Returns to normal operation 17 i NOTE COMP LOCK OFF permanently defeats compressor lockout You must turn this selection ON if you do not have a system that already provides compressor short cycle protection Please see Lockout Bypass Option to temporarily override compressor lockout ment range for COOLING is from 9 to 40 The factory preset is 12 13 for heat pump The cooling will not go below 9 because compressors require a longer cycle The adjustment range for AUXILIARY heat pump only is from 1 to 40 The factory preset is 6 The chart below shows how this adjustment range affects thermostat performance PROGRAMMABLE COOL FAN OFF AND FAN ON DELAY Installer table steps 7 and 8 These items allow a selection of 0 to 127 seconds of fan off delay after the thermostat has satisfied the call for cool or a fan on delay of 1 to 30 seconds on a call for cool or heat pump compressor activation The fan off delay allows the fan to continue running a2. Button s Displayed Factory Default Press or to select COMMENTS Be i SET MLTI STG HEAT PUMP Selects type of system Selecting HEAT PUMP and SET makes additional menu items for heat pump hold for approx system available 3 seconds HEAT PUMP Selects 1 1 one compressor on Y1 2 two compressors on Y1 Y2 3 one compressor on W1 ELECT HEAT FAN OFF Fan cycles with call for heat if ON Fan always 4 ON cycles with pump stages TIME SET CYCLE HEAT 1 to 40 for multi stage Selects HEAT anticipation adjustment 5 for multi stage 9 to 40 for heat pump 13 for heat pump TIME SET CYCLE COOL 9 to 40 Selects COOL anticipation adjustment 4 13 SET CYCLE AUX 1 to 40 Selects AUXILIARY stage anticipation adjustment 4 Y 06 Heat Pump ONLY COOL FAN DELAY OFF 0 to 127 seconds Selects time delay for COOL fan OFF 00 TIME FAN DELAY ON 1 to 30 seconds Selects time delay for fan ON Applies only to 01 compressor stages for heat pump or COOL HEAT FAN DELAY OFF 0 to 127 seconds Selects time delay for HEAT fan OFF only when 00 ELECT HEAT FAN Step 3 is ON PUMP OFF Fossil Fuel Kit Alternative option Turns compressor ON ON OFF if Auxiliary is ON for longer than one minute Heat Pump amp 2 TIM COMP LOCK Selects compressor short cycle protection enabled OFF or OFF ECON Economizer option Long Y1 cycles for cooling OFF with outdoor air HEAT OFF COOL AUTO HEAT OFF COOL Allows selection of HEAT and COOL or HEAT or or COOL and
3. Installer menu multi stage heat pump selection Use the following text along with the Installer table on page 5 to guide you through the menu Once in the menu you set each item to the proper selection using or Gy then press TIME Zp to change the display to the next item or TIME to return to the previous item To exit the menu at any time press PRO GRAM D MULTI STAGE HEAT PUMP MODE Installer table step 1 Use this item to select the system type multi stage or heat pump IF YOU HAVE A HEAT PUMP SYSTEM you must select HEAT PUMP here This sets up proper default values for most heat pump systems This selection also makes available some additional menu items that apply only to heat pump systems HEAT PUMP COMPRESSOR CONFIGURATION Installer table step 2 this menu item is displayed only when heat pump was selected in step 1 Use this item to select the number of heat pump compressors and how they are connected ELECTRIC HEAT FAN CONFIGURATION Installer table step 3 This menu item determines whether fan control will be through the thermostat or through the heating 4 system If you have an electric heat or other system that REQUIRES the thermostat to control the fan set this item ON This allows the thermostat to energize the fan immedi ately on a call for heat If you are unsure if the system requires the thermostat to control the fan contact the equipment manufacturer or a qualified heating
4. NOT operate the cooling system 1 Press PROGRAM Gp 2 Press until COOL is displayed 3 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 4 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 MULTI STAGE HEAT PUMP AUXILIARY OPERATION TEST Follow these steps to energize all stages of heat or cool to permit system checks during installation HEAT Press to raise temperature setting to 99 F then hold for five seconds The second and third stage heat relays will energize immediately for test purposes The LED indicator will glow green for first stage and yellow for second stage COOL Press to lower temperature setting to 45 F then hold for five seconds The second stage cool relay will energize immediately for test purposes The LED indicator will glow green for first stage and yellow for second stage EMERGENCY heat pump only Press to select EMER mode The LED indicator will glow red for emergency mode A flashing light indicates a malfunction in the system TROUBLESHOOTING RESET BUTTON If the thermostat does not respond when keys are pressed or the thermostat is not operating properly you may use the reset button located on the back of the thermostat body see fig 2 Therm
5. item controls heat pump compressor operation with a fossil fuel auxiliary This menu item may eliminate the need for a separate fossil fuel kit although we recom mend that you consult the heat pump system manufacturer before using this feature instead of a kit This item will allow the thermostat to turn the heat pump compressor off if the auxiliary is on for more than one minute to prevent compressor head pressure from getting too high To use this feature instead of a kit select PUMP OFF COMPRESSOR LOCKOUT Installer table step 11 This thermostat is capable of protecting 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 With heat pump systems the word HEAT will flash if the lockout occurs during a heat cycle During this period the compressor will not be energized Lockout Bypass Option FOR QUALIFIED SERVICE TECH NICIANS USE ONLY HOMEOWNERS SHOULD NOT USE THIS FEATURE DUE TO POSSIBIL ITY OF EQUIPMENT OR PROP ERTY DAMAGE OR PERSONAL INJURY COMPRESSOR SHORT TERM CYCLE PROTECTION If this thermostat has been configured to provide short cycle protection during the 5 minute lockout period the thermostat will lock out the compressor to allow head pressure to stabilize To override this feature for one cycle while testing thermostat operation pr
6. sensor L A b C Installer table step 17 If you wish to sense indoor temperature using ONLY the remote sensor s use this menu item to disable the temperature sensor in the thermostat designated as the L sensor When operating with remote sensor s the thermostat will calculate an average of the sensed temperatures in all enabled sensor locations A b C and or L then display the average temperature as the room tempera ture During programming you can also assign each enabled sensor different priorities during different program periods This allows the system to maintain a comfortable environment by giving higher priority to occupied locations At the same time efficient system operation is enhanced by giving lower priority to unoccupied locations For detailed instructions on this feature see the Operating Instructions 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 PROGRAM Gp 3 Press EX until FAN ON is displayed The fan should begin to operate 4 Press ZX until FAN AUTO is displayed The fan should stop operating HEATING SYSTEM 1 Press PROGRAM Gp 2 Press until HEAT is displayed If the heating system has a standing pilot ensure that it is lit 3 Press to adjust thermostat setting above room temperature The heating system should begin to operate 4 Press to adjust temperature below room
7. temperature The heating system should stop operating After using the Installer menu to properly configure the thermostat for your system press PROGRAM cD OUTDOOR TEMPERATURE SENSE This thermostat can also display outdoor temperature if you install an outdoor remote sensor with an outdoor temperature sensor probe F145 1378 Refer to the remote sensor installation instructions for proper installation and wiring Refer to the Operat ing Instructions to enable this feature and display outdoor temperature on the thermo stat Thermostat terminals X 10 Universal Low Voltage Module X 10 Telephone Responder Module To 115 VAC power source To telephone line DED NPE OPTIONAL ACTIVATE RUN PRG BY TELEPHONE With the optional X 10 Telephone Responder Model TR551 Radio Shack catalog RSU 10037778 and Universal Low Voltage Module UMS506 Radio Shack catalog RSU 10037752 installed you can make a telephone call to run your program if the thermostat has been set to Hold or Vacation Hold Figure 3 shows typical wiring connections for installing the X 10 equip ment The switch on the Universal Low Voltage module must be set to the Momen tary position This option must be enabled on the User menu see Operating Instructions Figure 3 Optional X 10 connection CHECK THERMOSTAT OPERATION COOLING SYSTEM To prevent compressor and or property damage if the outdoor temperature is below 50 F 10 C DO
8. O 63123 5398 for proper disposal REMOVE OLD THERMOSTAT Shut off electricity at main fuse or circuit breaker box until installation is complete AND the new thermostat is configured properly Mounting screws 2 Pull wires through this opening Insert wires into terminal holes then tighten screws Screw anchors O Jumper connections for remote sensor power Do not remove Remove the front cover of the old thermo stat With wires still attached remove wall plate from the wall Identify each wire attached to the thermo stat using one 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 follow ing procedures ATTACH BASE TO WALL Remove packing material from the thermo stat 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 E2 P w3 E C R Ay W2 NNNNNNNN Figure 1 Thermostat base and terminals ee ee ee RR PRA be eo ee Fe a a DOOOODOOODOOOO w1 Y2 Y1 B OSG 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 6 pilot holes and install screw anchors in the wall Run
9. WHITE RODGERS COMFORT SET 90 SERIES MULTI STAGE HEAT PUMP INSTALLATION CONFIGURATION INSTALLATION DESCRIPTION This White Rodgers Automatic Setback the flexibility to design heating and cooling commercial forced air multi stage or heat Digital Thermostat uses microcomputer programs that fit building needs This pump systems with electric or fossil fuel technology to provide precise time and thermostat is adaptable to most 24 volt auxiliary temperature control This thermostat offers SPECIFICATIONS 1F93 380 7 Day programming commer Standard Systems Operating Ambient Temperature cial applications Multi stage gas oil electric 32 to 110 F 0 to 43 C ELECTRICAL DATA Single stage or two stage compressor Operating Humidity Range heat pump 90 non condensing max Electrical Rating S tu 20 to 30 VAC 50 60 Hz with common THERMAL DATA Shipping Temperature Range 0 05 to 1 5 Amps per terminal Setpoint Temperature Range a tO 14ER 20O C 2 5 Amps maximum total load all 45 to 99 F 7 to 37 C terminals combined PRECAUTIONS This thermostat is intended for use with a low voltage system Do not use on a line voltage system Do not short out terminals on gas valve To prevent electrical shock and or or primary control to test Short or equipment damage disconnect electric incorrect wiring will damage thermostat power to system at main fuse or circuit Do not exceed ratings shown in the Specifi and could caus
10. and air conditioning service person If your system controls fan operation as with most fossil fuel systems set this item to OFF Note that with heat pump systems the fan always cycles with the compressor SET CYCLE HEAT COOL AUX ANTICIPATION Installer table steps 4 through 6 step 6 is for heat pump only These items allow the cycle times in heating cooling and auxiliary heat pump only to be increased or decreased The factory set values can be adjusted higher for longer cycles or lower for shorter cycles NOTE Some manufacturers still instruct you to set the anticipator to the current draw of the equipment That instruction applies only to mercury bulb or mechanical thermostats it does not apply to this digital thermostat As configured at the factory this thermostat will maintain an accurate temperature No further adjustment is necessary although you can use these menu items to customize the performance of the thermostat to your requirements The adjustment range for HEATING is from 1 to 40 9 to 40 for heat pump The factory preset is 5 13 for heat pump The adjust Continued on page 6 TIME aN TIME m TIME jam T 8 as 5 ON so ley a m en Oo TIME T T S as lt 3 So cE 5 J a m m m TIME INSTALLER TABLE NOTE You must be in the User Configuration Menu to enter the Installer Menu Press TIME GZ and TIME G9 at same time Step Press
11. d in on call for Heat and Cool Mode Cool Emergency Heat Pump 3 mode 1st stage If system does not provide connection to E jumper W1 to E to provide Aux heating in emergency mode E2 Emergency ey 24 volt 24 voit Pamper terminal Pe age 2nd mode constant Heat mode Coolmode Heat On energized in n output No Output A Common Hot occupied mode See P All other modes 1st stage 1st stage Emergency constant output If system does not provide connection to E jumper W2 to E to provide Aux heating in emergency mode CONFIGURATION SWITCHES RESET SWITCH See the Troubleshooting section at the end of this document for more information about the function of this switch E2 P SWITCH The E2 P switch is located on the back of the thermostat body see fig 2 This switch controls how the E2 P terminal of the thermostat will be energized When the switch is in the E2 position down the E2 P terminal will be energized only when in emergency heat When the switch is in the P position up the E2 P terminal will always be energized except when in emergency heat Consult the equipment manufacturer or a qualified heating cooling service person before setting this switch If your system has no connection to E2 P no change in the switch setting is required BEFORE TURNING POWER ON please read the following instructions Before operating the system you must configure the thermostat to operate pro
12. e personal injury and or breaker box until installation is cations section above If in doubt about the property damage complete electrical ratings of your heating cooling system have it inspected by a qualified heating and air conditioning contractor or licensed electrician Do not use on circuits exceeding specified voltage Higher voltage will damage thermostat and could cause Read all instructions thoroughly before shock or fire hazard beginning installation All wiring must conform to local and national electrical codes and ordinances Thermostat installation and all compo nents of the system shall conform to Class II circuits per the NEC code This control is a precision instrument and should be handled carefully Rough handling or distorting components could cause the control to malfunction Part No 37 6066B Replaces 37 6066A 0120 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 nonabsorbent 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 9797 Reavis Road St Louis M
13. ess SET and SET buttons at the same time If the system has short cycle protection this item should not need to be enabled How ever if your system does not have short cycle protection turn COMP LOCK ON This will protect the compressor from short cycling and potential premature compressor failure Note that COMP LOCK OFF permanently disables compressor lockout If you need to temporarily disable compressor lockout please see Lockout Bypass Option ECONOMIZER FEATURE Installer table step 12 This item allows longer Y1 cycles for cooling with outdoor air DISABLING AUTOMATIC CHANGEOVER MODE Installer table step 13 This thermostat as configured at the factory provides automatic changeover which allows the thermostat to switch between heating and cooling to maintain temperature In this configuration when you press the SYSTEM button the thermostat will go through HEAT OFF COOL AUTO modes HEAT EMER OFF COOL AUTO for heat pumps Select HEAT EMER OFF COOL to disable the automatic changeover feature OPTIONAL REMOTE TEMPERA TURE SENSE Installer table steps 14 through 16 Up to three remote sensors part F145 1328 can be attached to this thermostat to sense indoor temperature at locations away from the thermostat Each sensor may be located as far as 200 feet away from the thermostat This is an excellent feature if the thermostat is in a poor location for sensing temperature or if you want to
14. fter the compressor has shut off This distributes the cool air that would otherwise stay trapped in the air conditioning coils through the ducts Ideally the timing 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 A short delay to allow the A coil to cool off or warm up in heat pump 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 Recommended setting for fan on delay is 10 seconds or less A system that does not have a high head pressure cutout should have a delay of 10 seconds or less PROGRAMMABLE HEAT FAN OFF DELAY Installer table step 9 This item allows a selection of 0 to 127 seconds of fan off delay after the thermostat has satisfied the call for heat The fan off delay allows the fan to continue running after the burner heating element etc has shut off This distributes the heat that would otherwise stay trapped in the ducts Ideally the timing would be set so the fan shuts off just as the warm air is exhausted If this timing is set too long the fan may begin blowing cool air before it shuts off Shorten ing the fan off delay will prevent this PUMP FOSSIL FUEL KIT ALTER NATIVE Installer table step 10 heat pump only This
15. install the thermostat in a separate room to prevent tampering Refer to the installation instructions included with the remote sensor for proper installation and wiring After installing and connecting the remote sensor s to the thermostat use these menu items to enable each remote indoor temperature sensor A b and or C Note that if SENSOR A b or C are set to ON in the menu but no sensor is installed or if the Continued on page 7 arenes HEATING COOLING Anticipation Value Cycle Length Differential Temperature Cycle Length Differential Temperature N A 6 F 0 6 0 9 C 1 0 1 6 F 0 6 0 9 C 1 0 1 6 F 0 6 0 9 These numbers are approximate and represent operation with a typical system Actual temperature differentials and run times may vary widely based on your building and equip ment as well as outdoor temperature conditions 6 sensor is not functioning when you exit the menu CHECK STAT SYSTEM will be displayed To correct this check for proper remote sensor installation and wiring If necessary return to the menu and be sure that the remote sensor items are set correctly The temperature at each remote sensor can be displayed by pressing the light button twice within one second with the thermostat in program run or hold mode Temperatures at the outdoor and indoor remote sensors will be displayed with subsequent presses of the light button in the following order if connected outdoor sensor
16. ol Mode Heat if confgured to Electric Heat Use the terminal output information below to help you wire the thermostat properly for your heat pump system type After wiring see CONFIGURATION section for proper thermostat configuration system oe c r wu w ve s e o cs Single stage compressor system gas or electric backup 24 Volt Heat mode 1st stage Heat Pump 1 Emergency mode 1st stage Damper terminal 24 Volt z Common Ho osauned mode E2 Emergency Heat mode ord mode constant stage output Emergency mode P All other modes 2nd stage constant output Heat mode 2nd stage No Output Multi stage or two compressor system gas or electric backup 24 Volt Damper terminal Heat Pump 2 petata Common he energized in stage occupied mode E2 Emergency mode constant output P All other modes constant output modes 2nd stage Heat mode 3rd stage Emergency mode 2nd stage System requiring separate signals for heat W1 W2 and cool Y1 gas or electric backup Heat and cool compressor 2 Heat and cool modes 1st Heat Off stage Emergency compressor Mode Energized in Blower Fan Energized Energized in on call for Heat and Cool Mode Cool Heat and cool modes 1st Heat Off stage Emergency compressor 1 Mode Energized in Blower Fan Energized on call for Heat and Cool Energized in Cool Mode Blower Fan Energized Energize
17. ostat programming and configuration will not be affected by pressing the reset button However the clock will need to be reset RESETTING THERMOSTAT CON FIGURATION AND PROGRAM MING The thermostat can be reset back to default programs and configuration Removing power from the thermostat will not reset it because the default settings are maintained in permanent memory Before resetting the thermostat you may want to make note of the previously selected configuration and programming You must reconfigure and reprogram the thermostat after resetting it using this method WHITE RODGERS EMERSON ELECTRIC CO 9797 REAVIS ROAD ST LOUIS MISSOURI 63123 5398 www white rodgers com To reset the thermostat press and release PROGRAM T then press the Gap 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 thermostat will then go into the HOLD mode and will maintain factory preset temperatures a
18. ou wire the thermostat properly for your multi stage system After wiring see CONFIGURATION section for proper thermostat configuration system e c r wm w ve se of c se Damper terminal energized in occupied mode Heat mode 2nd stage Cool mode 2nd stage Heat mode No function 1st stage HEAT PUMP TERMINAL OUTPUTS Refer to equipment manufacturers instruc tions for specific system wiring information You can configure the thermostat for use with the following heat pump system types HEAT PUMP TYPE 1 Single stage compressor system gas or electric backup HEAT PUMP TYPE 2 Multi stage or two compressor system gas or electric backup HEAT PUMP TYPE 3 System requiring separate signals for heat W1 W2 and cool Y1 gas or electric backup This thermostat is designed to operate a single transformer system If you have a two transformer system cut and tape off one transformer If transformer safety circuits are in only one of the systems remove the transformer of the system with NO safety circuits If required replace remaining transformer with a 75VA Class II transformer After disconnecting one transformer the two commons must be jumpered together THERMOSTAT TERMINALS Upper a S mai ae aai S si ee ee Malfunction Light X 10 Module Input THERMOSTAT TERMINALS Lower AAi Blower Fan Energized Cool mode poogen Energized in on call for Cool and 1st stage Mode Co
19. perly with your equipment The thermostat as it comes from the factory is configured to operate a standard multi stage electric forced hot air system with a single stage air conditioning compressor and fan In this configuration the thermostat will turn on the fan immediately on a call for heat If you are unsure whether your system requires the thermostat to control the fan contact your furnace air conditioning system manufacturer or a qualified heating air conditioning service person Your new thermostat has an Installer menu which allows you to customize the thermostat to meet your requirements The thermostat also has a User menu and a Keypad Lockout menu these menus are explained further in the Operating Instructions The menu settings can be changed at any time to meet system or personal requirements ENTERING THE CONFIGURATION MENUS After properly wiring the thermostat turn on power to the system Momentarily press PROGRAM to make certain the thermostat is in the run program mode then press TIME GD and TIME GSD at the same time to enter the User Configuration menu When the display changes to the first item in the configuration menu release the buttons Then press and hold SET and SET for approximately 3 seconds to Reset switch E2P switch Figure 2 Switch locations on back of thermostat body INSTALLER CONFIGURATION enter the Installer menu The display will change to show the first item on the
20. 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 PROGRAM MING Before the power is turned on the thermostat must be configured to operate properly with the system See the CON FIGURATION section of this manual This thermostat can be programmed for automatic temperature control Refer to Operating Instructions for programming MULTI STAGE TERMINA Refer to equipment manufacturers instruc tions for specific system wiring information You can configure the thermostat for use with either multi stage electric heat systems or multi stage gas systems When configured for electric heat the G terminal blower fan will be energized on a call for heat UTPUTS This thermostat is designed to operate a single transformer system If you have a two transformer system cut and tape off one transformer If transformer safety circuits are in only one of the systems remove the transformer of the system with NO safety circuits If required replace remaining transformer with a 75VA Class II transformer After disconnecting one transformer the two commons must be jumpered together THERMOSTAT TERMINALS Upper o S amai o aai d si f asci f aor i Malfunction Light X 10 Module Input THERMOSTAT TERMINALS Lower Use the terminal output information below to help y
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