Zoning System Design Manual70-2321—03 Install the PanelMount on return, stud, wall, or roof truss.Zone Panels should not be exposed to weather or installed in a location where they might get wet. Likea damper, they must be accessible for service, if required. Select a conventional zone control panel orcommunicating zone panel using Table 2 and 3. Notice that no fossil fuel kit is necessary for the HZ432in dual fuel applications, but is necessary for all other panels.5Zone PanelAPPLICATION2 TO 3 ZONE2 TO 32 ZONESCONVENTIONAL1-HEAT/1-COOLHZ322ORHZ311HZ432CONVENTIONAL2-HEAT/2-COOLCONVENTIONAL ZONE PANEL SELECTION GUIDEHZ322HZ432HEAT PUMP2-HEAT/1-COOLHZ322HZ432 HZ432HEAT PUMP/CONVENTIONAL3-HEAT/2-COOL ORDUAL FUEL 2 HEAT/2-COOLHZ432with W8665EWIRELESS ZONINGWITHT8665A WIRELESSTHERMOSTATHZ322 OR HZ311with W8665EHZ432 OR HZ322with W8665EHZ432 OR HZ322with W8665EM19800BAPPLICATIONNETWORKED ZONING SELECTION GUIDEM19801ATHERMOSTATCONVENTIONAL/HEAT PUMPOPERATES SINGLE STAGE,MULTISTAGE, ANDHEAT PUMP EQUIPMENTUP TO 3-HEAT/2-COOLEQUIPMENT INTERFACEMODULETH9421C1004orTH5320C1002DAMPER INTERFACEMODULEUP TO 9 ZONES TOTALW8635DC7835A1009W8835A1004DISCHARGE AIRTEMPERATURE SENSORDATSNOT NEEDEDFOR ZONES 1-3ONE W8703A FOR EVERY3 ZONES FROM 4-9TELEPHONEACCESS MODULETable 2. Conventional Zone Panel Selection Guide.Table 3. Networked (Communicating) Zoning Selection Guide.