Honeywell Prestige 2.0 THX9421 Manual page 53

ISU Installer Setup
Number Name
Thermostat (Internal)
8010 Which Sensor will be
used for Sensor Name (Remote)
Humidification
Sensor Name (Remote)
Control?
Sensor Name (Remote)
Sensor Name (Remote)
Sensor Name (Remote)
Sensor Name (Remote)
(Up to 6 Remote Sensors)
None
8030 What Terminals are
Wired to the U1
Humidifier?
U2
U3
Off
8050 Humidification -
On
Window Protection
Check box on screen for each:
8060 System Modes
Allowing Heat
Humidification
Cool
Off
THX9321 PRESTIGE
Table 4. Installer Setup (ISU) Table. (Continued)
Settings Default
Thermostat
(Internal)
Thermostat
defaults to the
next unused
universal
terminal (U1,
U2, U3).
Off
Heat
Default varies
based on
heating/cooling
equipment
selected
53
®
2.0 AND THX9421 PRESTIGE
Residential,
Commercial Requires
or Both EIM
Both No Select a sensor to control humidification
(thermostat or an optional remote sensor). If
multiple sensors are installed, you can use a
different sensor for dehumidification control.
See "Humidification control" beginning on
page 132.
Note: Humidity sensing cannot be averaged.
Both No Number of Universal Outputs:
THX9321 Thermostat: U1 and U2 terminals
Equipment Interface Module (EIM): U1, U2 and
U3 terminals
U1, U2, U3 are dry contacts that require power.
See "Wiring IAQ Equipment or a Heat/Cool
Stage to the Universal Terminals" beginning on
page 152.
Both No Requires an optional outdoor sensor.
Off: The thermostat controls the humidity level
to the user's desired humidity setting. Frost or
condensation may appear on windows.
On: The thermostat prevents frost or
condensation on windows by not allowing the
humidity to go above the "Window Limit" when
it is controlling the humidifier. The "Window
Limit" is based on the current outdoor
temperature and the user's window protection
setting. The "Window Limit" is displayed on the
user's humidification screen. See "Window
Protection" beginning on page 102.
Both No Click boxes on screen to select which system
modes allow humidification. If a box is NOT
checked, the thermostat will NOT allow
humidification to operate in that mode.
Heat: Includes Heat, Emergency Heat and Auto.
If the system is in Auto mode, the thermostat
will allow humidification if the last call was for
heat.
Cool: Includes Cool and Auto. If the system is in
Auto mode, the thermostat will allow
humidification if the last call was for cool. A
discharge air temperature sensor is required to
humidify in the Cool mode.
Off: The thermostat will allow humidification
when the system setting is Off.
See "Set up Humidification" beginning on
page 103.
®
IAQ WITH EIM
Notes
68-0311—07