Honeywell PRESTIGE THX9321 - Manual (Page 107)

THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM
107 68-0311—02
4. Select the terminals wired to the Whole House Dehumid-
ifier. See Fig. 225.
Fig. 225.
5. Select the system mode(s) to allow dehumidification.
See Fig. 226.
NOTE: Heat includes Heat, Emergency Heat and Auto.
If the system is in Auto mode, the thermostat
will allow dehumidification if the last call was for
heat.
Cool includes Cool and Auto. If the system is in
Auto mode, the thermostat will allow dehumidifi-
cation if the last call was for cool.
Fig. 226.
6. Set Dehumidifier Fan Control settings. See Fig. 227.
• Thermostat Controls Fan
Thermostat turns on the dehumidifier and the fan
when dehumidification is needed.
• Equipment Controls Fan
Thermostat turns on the dehumidifier when
dehumidification is needed. The fan is controlled by
the equipment.
Fig. 227.
7. Set the desired lockout option. See Fig. 228.
Fig. 228.
NOTE: ISU 10140 gives the option to lockout ventila-
tion during calls for dehumidification. This helps
maintain the desired humidity level.
Dehumidification Away Mode
Dehumidification Away Mode protects the home when
unoccupied for long periods of time during hot and humid
weather by maintaining the desired humidity and temperature
settings.
To start Dehumidification Away Mode, press MENU, then press
Dehumidification Away Mode.
Fig. 229.
The thermostat automatically follows settings that are set by
the dealer during installer setup.
Press Cancel to end Dehumidification Away Mode.
Fig. 230.