White Rodgers 1F98EZ-1621 Specifications

www.white-rodgers.comwww.emersonclimate.comPART NO. 37-7235A1114 Provides Wireless Control for up to 4 Heat/2 Cool Heat Pump Stages or up to 2 Heat

10TROUBLESHOOTINGReset Operation If a voltage spike or static discharge blanks out the display or causes erratic Comfort Interface operation, you can

11TROUBLESHOOTINGIf the system does not operate or communicate properly using the previous troubleshooting page, follow the

www.emersonclimate.comWhite-Rodgers is a division of Emerson Electric Co.The Emerson logo is a trademark and service mark of Eme

2WARNING!       ATTENTION:

3DHM2 DHM HM2 HM LSYSTEMPOWERRCRCLED On/Offto terminal connections on HVAC equipmentConnect W/EW2YY2GO/BLDHMDHM2HM2HMRCTo Return Air Sensor (RAS) Requi

4**To use the HVAC transformer to power humidification/dehumidification switch HM/DHM switches to “SYS” position:- Connect humidifier to HM- Connect de

5IMPORTANTWireless communication for the Comfort Interface and the factory. It is not necessar

6

7W/EW2YY2GO/BHMDHMindicate the selections of the Comfort Interf

81. Locate Comfort Interface on interior wall approximately 5 temperatu

93 Press the  button once, 1 (Remote sensor) should be displayed if a remote sensor is installed. Press  