Honeywell PRESTIGE THX9321 - Manual (Page 30)

THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM
68-0311—02 30
3000 Changeover Manual
Automatic Manual:
if ISU 1010 is
Residential
Automatic:
if ISU 1010 is
Commercial
Both No Manual: The user must select heating or
cooling as needed to maintain the desired
indoor temperature.
Automatic: The user has the option to
select Auto for the system setting. In Auto
mode, the thermostat controls heating and
cooling equipment as needed to maintain
the desired indoor temperature.
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.
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.
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.
Table 4. Installer Setup (ISU) Table. (Continued)
ISU
Number
Installer Setup
Name Settings Default
Residential,
Commercial
or Both
Requires
EIM Notes