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THX9321 PRESTIGE
®
2.0 AND THX9421 PRESTIGE
®
IAQ 2.0 WITH EIM
47 68-0311—01
13150 Allow Cool Delta T
Diagnostics when
Outdoor Temperature
is [Outdoor
Temperature Range]
Minimum Setting
No Limit
-50° F to 135° F (in 5° F
increments)
No Limit
(Always)
Both Yes This ISU only applies to Cooling.
This ISU is only displayed when ISU 13015 Set
Advanced Diagnostic Options is set to Yes.
The thermostat monitors Delta T of the system
ONLY when the outdoor temperature is within a
certain range. Set to No Limit to monitor Delta T
during all outdoor temperature conditions.
13150 Maximum Setting
No Limit
-45° F to 140° F (in 5° F
increments)
No Limit
(Always)
Both Yes
13160 Allow Cool Delta T
Diagnostics when
Outdoor Humidity is
[Outdoor Humidity
Range]
Minimum Setting
No Limit
0% to 95% (in 5% increments)
No Limit
(Always)
Both Yes This ISU only applies to Cooling.
This ISU is only displayed when ISU 13015 Set
Advanced Diagnostic Options is set to Yes.
The thermostat monitors Delta T of the system
ONLY when the outdoor humidity is within a certain
range. Set to No Limit to monitor Delta T during all
outdoor humidity conditions.
13160 Maximum Setting
No Limit
5% to 100% (in 5% increments)
No Limit
(Always)
Both Yes
13170 Defrost Cycle None
1 to 60 minutes (in 1 minute
increments)
10 Both Yes This ISU is only displayed if ISU 2010 Heating
Equipment Type is Air to Air Heat Pump.
Press the up/down arrows to set the maximum time
duration of a defrost cycle. Check the heat pump
documentation for the defrost cycle time.
Note: The diagnostic algorithm detects when the
system goes into defrost based on the measured
Delta T of the system. When the thermostat detects
this change in temperature, the thermostat will not
compare Delta T to the Minimum and Maximum
Delta T Fault Limits. After the defrost cycle has
ended, the thermostat will resume monitoring Delta
T of the system.
13180 Delta T Alert
Sensitivity
1 to 5 3 Both Yes See “Delta T Alert Sensitivity (ISU 13180).”
beginning on page 54.
13190 Display Delta T Alerts
to User
No
Yes
Yes Both Yes No: The thermostat does NOT display a Delta T alert
to the user when a Delta T alert is entered into the
log.
Yes: The thermostat displays a Delta T alert to the
user when a Delta T alert is entered into the log.
See “Delta T Alerts” beginning on page 54.
14000 Clock Format 12 hour
24 hour
12 Both No
14010 Daylight Saving Time Off
On
On Both No Set to Off in areas that do not follow Daylight Saving
Time.
14020 Indoor Temperature
Display Offset
-3° F to 3° F (in 1° F increments) 0° F Both No 0° F - No difference in displayed temperature and
the actual room temperature.
The thermostat displays up to 3°F (1.5°C) lower or
higher than the actual measured temperature.
14020 Indoor Humidity
Display Offset
-12% to 12% (in 1% increments) 0% Both No 0% - No difference in displayed humidity and the
actual room humidity.
The thermostat displays up to 12% lower or higher
than the actual measured humidity.
15000 Dealer Name [Dealer Name] None Both No
15000 Dealer Phone [Dealer Phone] None Both No
15010 Dealer Email Address [Dealer Email Address] None Both No
15010 Dealer Website [Dealer Website] None Both No
15020 Dealer Message [Dealer Message] None Both No
Table 2. Installer Setup (ISU) Table. (Continued)
ISU
Number Installer Setup Name Settings Default
Residential,
Commercial
or Both
Requires
EIM Notes