Honeywell Home THX9321 Prestige 2.0 Manual page 113

Refer to the information below if you need assistance
setting the High Dewpoint Lockout.
• Higher than 80: Extremely uncomfortable
• 75 to 80: Very uncomfortable
• 70 to 74: Quite uncomfortable
• 65 to 69: Somewhat uncomfortable
Ventilate On High Indoor Humidity (ISU
10160)
If set to ventilate on high indoor humidity, the ventilator
turns on to remove excess humidity if the indoor humidity
is 10% above the Humidification setting. The thermostat
must be in the heat mode to ventilate on high indoor
humidity.
Set Up Ventilation
Some screens shown in this section may not appear on the
thermostat, depending on how you set up ventilation.
1. Select the Ventilation Type in ISU 10000. See
Fig. 253.
Fig. 253.
2. Select the terminals wired to the Ventilator (or Fresh
Air Damper). See Fig. 254.
Fig. 254.
®
THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE
3. Select the Ventilation Control Method. See "Ventila-
tion Control Methods (ISU 10050)" on page 112 for
more information. See Fig. 255.
4. Select the Ventilation Fan Control. See "Ventilation
Fan Control (ISU 10060)" on page 112 for more infor-
mation. See Fig. 256.
NOTE: ISU 10060 is only displayed if the Ventilation
Type is ERV / HRV. The thermostat controls
the fan if the Ventilation Type is Fresh Air
Damper.
5. If ASHRAE was selected for ISU 10050, select the
Number of Bedrooms and Size of House. See
Fig. 257.
113
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IAQ WITH EIM
Fig. 255.
Fig. 256.
Fig. 257.
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