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THX9321 PRESTIGE
®
2.0 AND THX9421 PRESTIGE
®
IAQ 2.0 WITH EIM
23 68-0311—01
3060 Staging Control -
Compressor Heat
Differential Stage 1
Comfort
1.0° F to 4.0° F from setpoint (in
0.5° F increments)
Comfort Both No ISU 3010 Temperature Control Options must be set
to Advanced to view or adjust this ISU.
This ISU is only displayed if ISU 2010 Heating
Equipment Type is Geothermal Radiant Heat and
ISU 2050 Geothermal Forced Air System is set to
Used for Heating and Cooling.
The indoor temperature must drop to the selected
differential setting before the thermostat will turn on
the stage of heating. For example, if stage 1 is set to
2° F (1.0° C), the indoor temperature must be 2° F
(1.0° C) away from the setpoint before stage 1 turns
on. When set to Comfort, the thermostat will use the
stage of heating as needed to keep the indoor
temperature within 1° F (0.5° C) degree of the
setpoint.
3060 Staging Control -
Compressor Heat
Differential Stage 2
Comfort
1.0° F to 4.5° F from setpoint (in
0.5° F increments)
Comfort Both No ISU 3010 Temperature Control Options must be set
to Advanced to view or adjust this ISU.
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 there are 2 compressor stages.
The indoor temperature must drop to the selected
differential setting before the thermostat will turn on
the stage of heating. For example, if stage 2 is set to
2° F (1.0° C), the indoor temperature must be 2° F
(1.0° C) away from the setpoint before stage 2 turns
on. When set to Comfort, the thermostat will use the
stage of heating as needed to keep the indoor
temperature within 1° F (0.5° C) degree of the
setpoint.
3080,
3090
Staging Control -
Backup Heat
Differential Stage 1
Note: “Stage 1" is not
displayed if there is
only 1 stage of
Backup Heat.
Comfort
2.0° F to 15.0° F from setpoint (in
0.5° F increments)
Comfort Both No A backup heat differential can be set on any system
that has more than one heating equipment type.
See “Backup Heat Differential (Droop)” beginning
on page 60.
The Comfort setting is only available on systems
when the Backup Heat Type is Allowed to Run with
the Primary Heat (Heat Pump). For example, Heat
Pumps with Electric Forced Air Backup Heat.
The Comfort setting is NOT available for Dual Fuel
systems. For example, Heat Pumps with Gas Forced
Air.
3080,
3090
Staging Control -
Backup Heat
Differential Stage 2
Comfort
2.0° F to 15.5° F from setpoint (in
0.5° F increments)
Comfort Both No ISU 3010 Temperature Control Options must be set
to Advanced to view or adjust Backup Heat
Differential Stage 2.
This ISU is only displayed if there are 2 backup heat
stages.
The indoor temperature must drop to the selected
differential setting before the thermostat will turn on
backup heat stage 2. For example, if backup heat
stage 2 is set to 2° F (1.0° C), the indoor
temperature must be 2° F (1.0° C) away from the
setpoint before backup heat stage 2 turns on. When
set to Comfort, the thermostat will use backup heat
stage 2 as needed to keep the indoor temperature
within 1° F (0.5° C) degree of the setpoint.
3110 Backup Heat Upstage
Timer
Off
(30, 45, 60, 75, 90) minutes
(2, 3, 4, 5, 6, 8, 10, 12, 14, 16)
hours
Off Both No The Backup Heat Upstage Timer starts when the
highest stage of the previous heating equipment
type turns on. Backup heat will be used (if needed)
when the timer expires. See “Backup Heat Upstage
Timer” beginning on page 61.
This ISU is only displayed when Backup Heat
Differential Stage 1 is set to 2 F or higher (ISU 3080,
3090).
Table 2. Installer Setup (ISU) Table. (Continued)
ISU
Number Installer Setup Name Settings Default
Residential,
Commercial
or Both
Requires
EIM Notes