
90 Series90 Series90 Series90 Series90 SeriesTMPREMIUMOperOperOperOperOperaaaaating Instrting Instrting Instrting Instrting Instructionsuctionsuctions
8MULTI-STAGE TERMINAL OUTPUTSMULTI-STAGE TERMINAL OUTPUTSMULTI-STAGE TERMINAL OUTPUTSMULTI-STAGE TERMINAL OUTPUTSMULTI-STAGE TERMINAL OUTPUTSRefer to
9InstallationHEAT PUMP TERMINAL OUTPUTSHEAT PUMP TERMINAL OUTPUTSHEAT PUMP TERMINAL OUTPUTSHEAT PUMP TERMINAL OUTPUTSHEAT PUMP TERMINAL OUTPUTSRefer t
10HEAT PUMP TERMINAL OUTPUTSHEAT PUMP TERMINAL OUTPUTSHEAT PUMP TERMINAL OUTPUTSHEAT PUMP TERMINAL OUTPUTSHEAT PUMP TERMINAL OUTPUTSTHERMOSTAT TERMINA
11THERMOSTAT TERMINALS (Lower)THERMOSTAT TERMINALS (Lower)THERMOSTAT TERMINALS (Lower)THERMOSTAT TERMINALS (Lower)THERMOSTAT TERMINALS (Lower)SYSTEM E
12CONFIGURATIONCONFIGURATIONCONFIGURATIONCONFIGURATIONCONFIGURATIONRESET SWITCHRESET SWITCHRESET SWITCHRESET SWITCHRESET SWITCHSee the Troubleshooting
13InstallationINSTALLER CONFIGURATIONINSTALLER CONFIGURATIONINSTALLER CONFIGURATIONINSTALLER CONFIGURATIONINSTALLER CONFIGURATIONBEFORE TURNING POWERO
14INSTALLER CONFIGURATION (cont.)INSTALLER CONFIGURATION (cont.)INSTALLER CONFIGURATION (cont.)INSTALLER CONFIGURATION (cont.)INSTALLER CONFIGURATION
15Installationthis digital thermostat. As config-ured at the factory, this thermostatwill maintain an accurate tempera-ture. No further adjustment isn
161 MLTI STGHEAT PUMP2 HEAT PUMP(1)2 or 3Selects type of system. Selecting HEAT PUMP makes additional menu items for heat pump system available.3 ELEC
1712ECON(OFF)ONReturns to normal operation.13 HEAT-OFF-COOL-AUTOorHEAT-EMER-OFF-COOL-AUTO (for heat pumps)HEAT-OFF-COOLorHEAT-EMER-OFF-COOL(for heat
17164356217 89101112131415Easy, Menu-Driven Set-UpEasy, Menu-Driven Set-UpEasy, Menu-Driven Set-UpEasy, Menu-Driven Set-UpEasy, Menu-Driven Set-Upand
18PROGRAMMABLEPROGRAMMABLEPROGRAMMABLEPROGRAMMABLEPROGRAMMABLECOOL FAN-OFF ANDCOOL FAN-OFF ANDCOOL FAN-OFF ANDCOOL FAN-OFF ANDCOOL FAN-OFF ANDFAN-ON D
19Installationusing this feature instead of a kit.This item will allow the thermostatto turn the heat pump compressoroff if the auxiliary is on for mo
20DISABLING AUTOMATICDISABLING AUTOMATICDISABLING AUTOMATICDISABLING AUTOMATICDISABLING AUTOMATICCHANGEOVER MODE.CHANGEOVER MODE.CHANGEOVER MODE.CHANG
21CAUTION!COOLING SYSTEMCOOLING SYSTEMCOOLING SYSTEMCOOLING SYSTEMCOOLING SYSTEMTo prevent compressor and/orproperty damage, if the outdoortemperature
22TROUBLESHOOTINGTROUBLESHOOTINGTROUBLESHOOTINGTROUBLESHOOTINGTROUBLESHOOTINGRESET BUTTONRESET BUTTONRESET BUTTONRESET BUTTONRESET BUTTONIf the thermo
23The configuration menus allow youto set certain thermostat operatingcharacteristics to your system orpersonal requirements.To enter the User Configu
241Step Press Button(s) Displayed Press or to select: COMMENTS Ref (Factory Default) Page0˚F(room temperature)5 LO to5 HI
251Step Press Button(s) Displayed Press or to select: COMMENTS Ref(Factory Default) PagePART LOCK(OFF)ON2LOCK(OFF)ONParti
26PROGRAMMINGMANUAL OPERATIONMANUAL OPERATIONMANUAL OPERATIONMANUAL OPERATIONMANUAL OPERATIONYour Comfort-Set 90 thermostat canbe used to control temp
27Programming9. Press TIME FWD or TIMEBACK to set the time on the displayas selected in your HEATING orCOOLING SCHEDULE. Be sureto check the AM or PM
1INTRODUCTIONThank you for purchasingyour new Comfort-Set 90Series thermostat. Your newWhite-Rodgers thermostatuses solid state micro-computer technol
285/2 Day Sample Program Schedule(Shows factory programming)MORNING (MOR)DAY (DAY)EVENING (EVE)NIGHT (NHT)6:00 AM8:00 AM5:00 PM10:00 PM70 F (21 C)62 F
295/2 Day PersonalProgram ScheduleMORNING (MOR)DAY (DAY)EVENING (EVE)NIGHT (NHT)Start Time Temperature Start Time Temperature5-DAY 2-DAYMORNING (MOR)D
30FEATURESCONFIGURATIONCONFIGURATIONCONFIGURATIONCONFIGURATIONCONFIGURATIONMENU FEATURESMENU FEATURESMENU FEATURESMENU FEATURESMENU FEATURESAdjustable
31applications start earlier because ittakes longer to reach the desiredtemperature. This feature alsominimizes the use of the auxiliarystages if cond
32Keypad Lockout.Keypad Lockout.Keypad Lockout.Keypad Lockout.Keypad Lockout.(Keypad Lockout table) Thissecurity feature allows you to lockout the key
33the programming examples sectionlists these factory settings. If thetimes and temperatures are the sameas your schedule, you may simplyrun the facto
34feature. Change to the next programperiod and press the FAN key untilPRPRPRPRPRG FG FG FG FG FAN ONAN ONAN ONAN ONAN ON is on the display.The fan wi
35thermostat will quit calling for heatfor one minute (this allows somefurnaces to reset) and call for heatagain. It will repeat this sequencethree ti
36without a program running, pressPROGRAM HOLD. The or keys can be used to raise orlower the temperature. Thethermostat will hold the settemperature
37press PROGRAM RUN to resumeyour normal program.Large Lighted Liquid CrystalLarge Lighted Liquid CrystalLarge Lighted Liquid CrystalLarge Lighted Liq
2THE THERMOSTAT BUTTONSTHE THERMOSTAT BUTTONSTHE THERMOSTAT BUTTONSTHE THERMOSTAT BUTTONSTHE THERMOSTAT BUTTONSSee inside front cover for illustration
38previously set program.After a power loss, the remotesensors will be operating properly,however, temperature at the remotesensors can not be display
39ProgramEntering Your ------------------- 26Planning Your ------------------ 26Temporary Override ----------- 35PROGRAMMING --------------- 26Schedul
NOTES
NOTES
PART NO. 37-6422CReplaces 37-6422B0513The Emerson logo is atrademark and a service markof Emerson Electric Co.White-Rodgers is a divisionof Emerson El
3FAN AUTOHRSCHECK BATTERY STAT SYSTEM°FAMMONPRGFAN ONHEATHEATHRSCHECK BATTERY°FAMMON WED THU FRI SAT SUNTUEWED THU FRI SAT SUNTUE18 1819202121
4INSTALLATION1F92-371:5/2 Day programming;residential applicationsELECTRICAL DATAELECTRICAL DATAELECTRICAL DATAELECTRICAL DATAELECTRICAL DATAElec
5InstallationPRECAUTIONSPRECAUTIONSPRECAUTIONSPRECAUTIONSPRECAUTIONS▲!WARNINGWARNINGWARNINGWARNINGWARNINGDo not short out terminalson gas valve or pri
6ATTENTION!ATTENTION!ATTENTION!ATTENTION!ATTENTION!This product does not containmercury. However, this productmay replace a unit which containsmercury
7InstallationInsert the wires into the terminals onthe base using the appropriatewiring diagram and tighten theterminal screws.CONFIGURINGCONFIGURINGC
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