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THX9321 PRESTIGE
®
2.0 AND THX9421 PRESTIGE
®
IAQ 2.0 WITH EIM
68-0311—01 24
3120 Outdoor Temperature
Lockouts:
Compressor Lockout
/ Balance Point
Off
5° F to 60° F (in 5° F increments)
Off
(See Notes)
Both No ISU 3120 Compressor Lockout / Balance Point
requires an outdoor sensor.
Default is 40 F if ISU 2010 Heating Equipment Type
is Air to Air Heat Pump and ISU 2180 Backup Type
is gas or oil forced air.
Default is Off if ISU 2010 Heating Equipment Type is
Air to Air Heat Pump and ISU 2180 Backup Type is
electric forced air.
Default is Off if ISU 2010 Heating Equipment Type is
Geothermal Heat Pump or Geothermal Radiant
Heat.
Compressor Lockout / Balance Point is optional for
any type of heat pump (Air to Air Heat Pump,
Geothermal Heat Pump or Geothermal Radiant
Heat).
See “Heat pump with outdoor temperature
lockouts” beginning on page 62.
3120 Outdoor Temperature
Lockouts:
Backup Heat Lockout
Off
5° F to 65° F (in 5° F increments)
Off Both No ISU 3120 Backup Heat Outdoor Temperature
Lockout requires an outdoor sensor.
This ISU is only displayed if ISU 2010 Heating
Equipment Type is Air to Air Heat Pump,
Geothermal Heat Pump or Geothermal Radiant
Heat and ISU 2190 External fossil fuel kit is set to
Thermostat Controls Backup Heat.
See “Heat pump with outdoor temperature
lockouts” beginning on page 62.
3130 Radiant Heat Cycles
Per Hour - Stage 1
Note: “Stage 1" is not
displayed if there is
only 1 stage of
Radiant Heat.
1 to 12 CPH 3 Both No ISU 3010 Temperature Control Options must be set
to Advanced to view or adjust cycle rate.
This ISU is only displayed when ISU 2010 Heating
Equipment Type is Geothermal Radiant Heat.
The thermostat automatically defaults to the
recommended setting for Geothermal Radiant Heat
(3 CPH).
Cycle rate limits the maximum number of times the
system can cycle in a 1 hour period measured at a
50% load. For example, when set to 3 CPH, at a
50% load, the most the system will cycle is 3 times
per hour (10 minutes on, 10 minutes off). The
system cycles less often when load conditions are
less than or greater than a 50% load.
3130 Radiant Heat Cycles
Per Hour - Stage 2
1 to 12 CPH 3 Both No ISU 3010 Temperature Control Options must be set
to Advanced to view or adjust cycle rate.
This ISU is only displayed when ISU 2010 Heating
Equipment Type is Geothermal Radiant Heat.
The thermostat automatically defaults to the
recommended setting for Geothermal Radiant Heat
(3 CPH).
Cycle rate limits the maximum number of times the
system can cycle in a 1 hour period measured at a
50% load. For example, when set to 3 CPH, at a
50% load, the most the system will cycle is 3 times
per hour (10 minutes on, 10 minutes off). The
system cycles less often when load conditions are
less than or greater than a 50% load.
Table 2. Installer Setup (ISU) Table. (Continued)
ISU
Number Installer Setup Name Settings Default
Residential,
Commercial
or Both
Requires
EIM Notes