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THX9321 PRESTIGE
®
2.0 AND THX9421 PRESTIGE
®
IAQ 2.0 WITH EIM
68-0311—01 44
10160 Ventilate on High
Indoor Humidity
Off
On (Heat Mode Only)
On (Heat Mode
Only)
Both No This ISU is only displayed when ISU 10000
Ventilation Type is set to ERV / HRV.
Off: The humidity level has no effect on ventilation.
On: The thermostat removes excess humidity by
turning on the ventilator when the indoor humidity
rises 10% above the user's humidification setting.
The thermostat must be in the heat mode to
ventilate on high humidity.
10170 Ventilator Core
Cleaning Reminder
Off
3, 6, 9, 12 Calendar Months
Off Both No
10170 Ventilator Filter
Cleaning Reminder
Off
3, 6, 9, 12 Calendar Months
Off Both No
11000 Number of UV
Devices
0, 1, 2 0 Both No Press the up/down arrows to select the number of
UV devices installed in the system. Some systems
may have two UV devices, one for the A-Coil and
another for Air Treatment. A replacement reminder
can be setup for each one. Select 0 if no UV devices
are installed.
11050 UV Bulb 1
Replacement
Reminder
Note: “1” is not
displayed if there is
only 1 UV Bulb
Off, 6, 12, 24 Calendar Months Off Both No
11050 UV Bulb 2
Replacement
Reminder
Off, 6, 12, 24 Calendar Months Off Both No
12000 Installer Custom
Reminders
View / Edit Custom Reminders
Add Custom Reminders
None Both No See “Customizable Reminders” beginning on
page 79.
13000 Heat Delta T
Diagnostics
Off
On
On Both Yes This ISU is only displayed when the thermostat is
setup for a Non-Zoned Forced Air Heating System
and the thermostat is setup for 10K Discharge and
Return Air Sensors at ISU 5000 (What Sensors are
WIRED to your System?)
This ISU is NOT displayed when the thermostat is
setup for an External Fossil Fuel Kit or an
Economizer (ISU 2190 and 2220).
See “Delta T Diagnostics” beginning on page 50.
13010 Cool Delta T
Diagnostics
Off
On
On Both Yes This ISU is only displayed when the thermostat is
setup for a Non-Zoned Cooling System and the
thermostat is setup for 10K Discharge and Return
Air Sensors at ISU 5000 (What Sensors are WIRED
to your System?)
This ISU is NOT displayed when the thermostat is
setup for an Economizer (ISU 2220).
See “Delta T Diagnostics” beginning on page 50.
13015 Set Advanced Delta T
Diagnostic Options
No
Yes
No Both Yes See “Advanced Options for Delta T Diagnostics”
beginning on page 53
13020 Allow Delta T
Diagnostics During
Humidification
No
Yes
Yes Both Yes This ISU is only displayed when ISU 13015 Set
Advanced Diagnostic Options is set to Yes.
No: The thermostat does NOT monitor Delta T of the
system during a call for humidification.
Yes: The thermostat monitors Delta T of the system
during a call for humidification.
Table 2. Installer Setup (ISU) Table. (Continued)
ISU
Number Installer Setup Name Settings Default
Residential,
Commercial
or Both
Requires
EIM Notes