Honeywell Prestige 2.0 THX9421 Manual page 30

®
THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE
ISU Installer Setup
Number Name
3000 Deadband
3010 Temperature Control
Options
3020 Finish With High
Cool Stage
68-0311—07
®
Table 4. Installer Setup (ISU) Table. (Continued)
Settings
2° F to 9° F (in 1° F increments)
Basic Options
Advanced Options
Advanced Options + PID Settings
No
Yes
IAQ WITH EIM
Residential,
Commercial
Default or Both
3° F Both
Basic Options Both
No Both
30
Requires
EIM Notes
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.
When ISU 9070 (Dehumidification - Over
Cooling Limit) or ISU 9100 (High Humidity
Comfort Reset Setting) is set to 1, 2, 3, 4 or 5°
F, the thermostat will not show the full
Deadband range. For example, if you set a
Deadband of 3° F and an Over Cooling Limit of
2° F, the minimum Deadband that you can
select will be 5 F. This prevents the heating
system from turning on when the thermostat
over cools to reach the dehumidification
setting.
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.
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.