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THX9321 PRESTIGE
®
2.0 AND THX9421 PRESTIGE
®
IAQ 2.0 WITH EIM
21 68-0311—01
3000 Deadband 2° F to 9° F (in 1° F increments) 3° F Both No This ISU is only displayed when ISU 3000 is set to
Automatic.
Deadband is the minimum separation between heat
and cool settings when the thermostat is setup for
Auto Changeover. For example, if the deadband is
set to 3° F and the cool setpoint is 75° F, the
warmest heat setpoint allowed would be 72° F. If the
heat setpoint is adjusted above 72° F, it will
automatically adjust the cooling setpoint higher to
maintain the 3° F deadband.
3010 Temperature Control
Options
Basic Options
Advanced Options
Advanced Options + PID Settings
Basic Options Both No Basic Options: The Installer Setup displays basic
temperature control options which include Backup
Heat Differential, Backup Heat Upstage Timer and
Outdoor Temperature Lockouts. Note: Outdoor
Temperature Lockouts only apply to Heat Pump
applications.
Advanced Options: The Installer Setup displays
both Basic and Advanced Options. Advanced
temperature control options include Finish With
High Cool Stage, Finish With High Heat Stage,
Temperature Differential settings between all stages
and Cycle Rate settings per stage.
Advanced Options+PID Settings: The Installer
Setup displays both Basic and Advanced Options
including PID settings which allow you to adjust the
integral, derivative and throttling range.
3020 Finish With High Cool
Stage
No
Yes
No Both No ISU 3010 Temperature Control Options must be set
to Advanced to view or adjust Finish With High
Cool Stage.
This ISU is only displayed when the thermostat is
set for 2 or more cool stages.
When set to Yes, this feature keeps the high stage
of the cooling equipment running until the desired
setpoint is reached.
3021 Finish With High Heat
Stage
No
Yes
No Both No ISU 3010 Temperature Control Options must be set
to Advanced to view or adjust Finish With High
Heat Stage.
This ISU is only displayed when the thermostat is
set for 2 or more heat stages.
When set to Yes, this feature keeps the high stage
of the heating equipment running until the desired
setpoint is reached.
3030 Staging Control -
Cool Differential
Stage 2
Comfort
1.0° F to 3.5° F from setpoint (in
0.5° F increments)
Comfort Both No ISU 3010 Temperature Control Options must be set
to Advanced to view or adjust this ISU.
This ISU is only displayed when the thermostat is
set to 2 cool stages.
The indoor temperature must rise to the selected
differential setting before the thermostat turns on
the stage of cooling. For example, if stage 2 is set to
2° F (1.0° C), the indoor temperature must be 2° F
(1.0° C) away from the setpoint before stage 2 turns
on. When set to Comfort, the thermostat uses the
stage of cooling as needed to keep the indoor
temperature within 1° F (0.5° C) degree of the
setpoint.
Table 2. Installer Setup (ISU) Table. (Continued)
ISU
Number Installer Setup Name Settings Default
Residential,
Commercial
or Both
Requires
EIM Notes