Honeywell PRESTIGE THX9321 User Manual
Page 58
THX9321 PRESTIGE
®
2.0 AND THX9421 PRESTIGE
®
IAQ WITH EIM
68-0311—02
58
9080
Dehumidification
Control
Basic
Minimum On Time
High Humidity Comfort Reset
High Humidity Comfort Reset with
Minimum On Time
Reheat
Reheat with Minimum On Time
Basic
Commercial No
See “Dehumidification - Commercial”
9090
Dehumidification
Minimum On Time
5 to 15 minutes
10 minutes
Commercial No
This option ensures that the compressor
runs long enough to effectively reduce
humidity when the cooling equipment is
cycled on. The compressor will run for the
“minimum on time” you set until the
desired humidity level is reached.
9100
High Humidity
Comfort Reset
Setting
1° F to 5° F
2° F
Commercial No
The thermostat uses the cooling system to
reduce humidity by lowering the
temperature up to 5° F below the current
cool setpoint until the desired humidity
level is reached.
The thermostat keeps the temperature
below the cooling setpoint until the desired
humidity level is reached.
9120
System Modes
Allowing
Dehumidification
Check box on screen for each:
Heat
Cool
Off
Cool
Default varies
based on
heating/cooling
equipment
selected
Both
No
This ISU is only displayed when ISU 9000
Dehumidification Equipment is set to
Dehumidifier.
Click boxes on screen to select which
system modes allow dehumidification. If a
box is NOT checked, the thermostat will
NOT allow dehumidification to operate in
that mode.
Heat: Includes Heat, Emergency Heat and
Auto. If the system is in Auto mode, the
thermostat will allow dehumidification if
the last call was for heat.
Cool: Includes Cool and Auto. If the system
is in Auto mode, the thermostat will allow
dehumidification if the last call was for
cool.
Off: The thermostat will allow
dehumidification when the system setting
is Off.
See “Dehumidification - Residential”
“Dehumidification - Commercial”
Table 4. Installer Setup (ISU) Table. (Continued)
ISU
Number
Installer Setup
Name
Settings
Default
Residential,
Commercial
or Both
Requires
EIM
Notes