Honeywell THX9321 Prestige 2.0 Product Data page 48

®
THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE
ISU Installer Setup
Number Name
5000 What Sensors are
WIRED to your
System?
5010 Indoor
Temperature
Sensor Name
5020 What Terminals are
Wired to the Indoor
Temperature
Sensor?
5030 Indoor
Temperature
Sensor Type
68-0311—02
Table 4. Installer Setup (ISU) Table. (Continued)
Settings
Check box on screen for each:
Indoor Air Temperature
Outdoor Air Temperature
Return Air Temperature
Discharge Air Temperature
[Sensor Name]
None
S1
S2
S3
S4
10K
20K
®
IAQ WITH EIM
Residential,
Commercial
Default or Both
None Both
Indoor Sensor Both
None Both
10K: Both
if ISU 1010
Application is
Residential
20K:
if ISU 1010:
Application is
Commercial
48
Requires
EIM Notes
Yes Wired Sensors requires an EIM (Equipment
Interface Module). This ISU is only
displayed if one of the S1-S4 terminals is
available.
Click boxes on screen to select which
sensors are wired to the S1-S4 terminals at
the EIM.
The thermostat will not display the Outdoor
Air Temperature option at ISU 5000 if a
wireless outdoor air sensor is connected.
The thermostat will not display the Indoor
Air Temperature option at ISU 5000 if 6
wireless indoor air sensors are connected.
If you have a wired Indoor Air Temperature
network (1, 4, 9 etc), the thermostat will
allow up to 5 wireless indoor air sensors.
The thermostat will not display the Return /
Discharge Air Temperature option at ISU
5000 if there is no fan in the system.
Yes Wired Sensors requires an EIM (Equipment
Interface Module).
Enter a name (location) of the Wired Indoor
Air Temperature Sensor.
Yes Wired Sensors requires an EIM (Equipment
Interface Module).
Yes Wired Sensors requires an EIM (Equipment
Interface Module).
Select 10K or 20K based on the sensor
installed. Refer to resistance values below:
C7189U1005 = 10K ohm
C7772 = 20K ohm
TR21 = 20K ohm
TR21-A = 10K ohm (IMPORTANT - the
TR21-A must be used in combination with
a TR21 sensor or another TR21-A sensor
for the thermostat to calculate the correct
indoor temperature reading).
See "Wiring guide — Wired Indoor
Sensors" beginning on page 154 for
information on the sensor type you should
select based on how the sensors are wired.
For example, you would select 20K when
you have two TR21-A (10K) sensors wired
in series.