Set Up Dehumidification With Dehumidifier - Honeywell TH8321 Product Data

3. Select whether the U1 terminal is Normally Open or
Normally Closed. See Fig. 147.
• Normally Open – contacts are normally open and
will close during a call for dehumidification
• Normally Closed – contacts are normally closed
and will open during a call for dehumidification.
Fig. 147.
4. Set the Dehumidification Control. See Fig. 148. For
more information about these options, see "Dehu-
midification using the Cooling System" on page 64.
Fig. 148.
NOTE: ISU 1014 gives the option to lockout ventila-
tion on calls for dehumidification. This helps
maintain the desired humidity level.
VISIONPRO® 8000 SMART THERMOSTAT
Dehumidification using a Dehumidifier
The Dehumidifier option requires a dedicated unit for
dehumidification. The thermostat can be set to control
dehumidification in all modes (Heat, Off, Cool [ISU 912]).
Set up Dehumidification With
Dehumidifier
Some screens shown in this section may not appear on the
thermostat, depending on how you set up
dehumidification.
1. Select the Dehumidification Equipment in ISU 900.
See Fig. 149.
2. Select the terminals wired to the Dehumidifier. See
Fig. 150.
65
Fig. 149.
Fig. 150.
33-00096—04