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TROUBLESHOOTING1HDEZ-1521Emerson Inspire™Thermostat/InterfaceEquipment ControlInstallation Instructions

10INSTALLATIONInstallationFig. 6 - System Dehumidication with variable speed blower. For systems where low speed requires connect to normally open 24

11INSTALLATIONInstallationThermostat 1) Pull the thermostat o the base using tabs shown above.2) Place base over wire hole in wall and mark mountin

12INSTALLATIONThermostatEquipment ControlR12C12CRData 1Data 224 VAC (Common24 VAC (Hot)Fig. 8 - Thermostat and Equipment Control WiringRJ-11 Connectio

13ADVANCED INSTALLER MENUFrom the Home screen press the and buttons at the same time for three seconds. Press Enter button to save any changes an

14ADVANCED INSTALLER MENUPress button to select Setup.Communicating DevicesThis menu item will list each piece of system equipment. Press butto

15ADVANCED INSTALLER MENUIndoorGA2 – 2 stage gas furnaceGA1 – 1 stage gas furnaceEL2 – 2 stage electric heatEL1 – 1 stage electric heatFAN – Indoor fa

16ADVANCED INSTALLER MENUHUMOFF – No humidier equipmentSYS – Humidier, powered using 24V from systemIND – Humidier, powered using independent 24V s

17ADVANCED INSTALLER MENUUSB Upload The USB Upload menu displays a list of thermostat parameters that can be loaded to the thermostat from a USB memo

18ADVANCED INSTALLER MENUThermostat SummaryIndicates the thermostat’s software and version.Heat Pump Lockout (outdoor sensor required)Available only f

19ADVANCED INSTALLER MENUAux Lockout Temperature (outdoor sensor required)Available for heat pump systems. This setting is the maximum outdoor tempera

2ATTENTION: MERCURY NOTICEThis product does not contain mercury. However, this product may replace a product that contains mercury.Mercury and product

20ADVANCED INSTALLER MENUInstallation TestPerforms an equipment test to verify proper installation and performance. Only operable on communicating sys

21MAIN MENUNavigating through your thermostat menusYour thermostat features a simplied easy to understand menu structure.• Press to enter the Main

22MAIN MENUTime and Day DisplayWhen turned on, the current time and day are displayed on the home screen.Outdoor Temp DisplayWhen turned on, the outdo

23MAIN MENUCooling ProgramAfter entering Heating Program, press to highlight “Switch to Cool Program” and press , or enter Cooling Program on the M

24MAIN MENUAir Filter Maintenance / Service Reminder / Humidier Maintenance Default for each is O. When set to On, a maintenance reminder will appea

25MAIN MENUBeeper – Default is On. Turns audible prompt on to indicate when a button is pressed.Cycle Humidier – Default if O. This feature provides

26MAIN MENUEMR (Energy Management Recovery)Default is On. With EMR selected On, the heating or cooling system will start early so the temperature in y

27MAIN MENUTemperature Display Adjust – Default is 0°. Your thermostat was accurately calibrated at the factory. However, this option allows you to ch

28TROUBLESHOOTINGSymptom Possible Cause Correction ActionNo Heat/No Cool/No Fan (common problems)1. Blown fuse or tripped circuit breaker. 2. Power sw

29TROUBLESHOOTINGSymptom Possible Cause Correction ActionNo Cool1. Cooling system requires service. Heat, Cool or Fan Runs Constantly1. Possible short

3APPLICATIONS & SPECIFICATIONSApplications and Speci cationsElectrical Rating:Input-Hardwire ... 20 to 30 VACTermina

30TROUBLESHOOTINGEquipment Control Fault CodesNumber Displayed in 7 Segment LEDComfort Alert FaultP Trip1Long Run Time2System Pressure Trip3Short Cycl

www.white-rodgers.comwww.emersonclimate.comWhite-Rodgers is a business of Emerson Electric Co.The Emerson logo is a trademark and service mark of Eme

4INSTALLATIONInstallationReduce installation time with a USB1. Go to www.white-rodgers.com2. Enter 1HDEZ-1521 in the Model Number Search  eld3. Sel

5INSTALLATIONEquipment ControlMount on wall or exterior surface of HVAC equipment. Control has four mounting holes. Wall anchors and screws are provid

6INSTALLATION Equipment Control Terminals Operation / Function R ... 24 VAC Transformer RC ...

7INSTALLATIONRJ-11 Connection for Configuration Plug-In toolStatus/Fault7-Segment LEDWiring to ThermostatR and C from HVAC terminal strip or system tra

8INSTALLATIONInstallationFig. 1 - Typical Connection of a Single Stage or Multi-Stage System*Factory installed jumper between RH and RCSYSTEM R RH RC

9INSTALLATIONInstallationWiring Guide for Equipment AccessoriesHMHM2Non-PoweredHumidierTransformerRCHM DRYRHHM2Fig. 3 - Humidier. HM terminal provid