Honeywell Prestige 2.0 THX9421 Manual page 32

®
THX9321 PRESTIGE 2.0 AND THX9421 PRESTIGE
ISU Installer Setup
Number Name
3040 Staging Control -
Radiant Heat
Differential Stage 2
3050 Staging Control -
Heat Differential
Stage 2
Note: Depending on
the application, the
text displayed on the
screen may show the
specific heating
equipment type
3050 Staging Control -
Heat Differential
Stage 3
Note: Depending on
the application, the
text displayed on the
screen may show the
specific heating
equipment type
68-0311—07
®
Table 4. Installer Setup (ISU) Table. (Continued)
Settings
Comfort
1.0° F to 3.5° F from setpoint (in
0.5° F increments)
Comfort
1.0° F to 3.5° F from setpoint (in
0.5° F increments)
Comfort
1.0° F to 4.0° F from setpoint (in
0.5° F increments)
IAQ WITH EIM
Residential,
Commercial
Default or Both
Comfort Both
Comfort Both
Comfort Both
32
Requires
EIM Notes
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 there are 2 radiant heat 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.
No ISU 3010 Temperature Control Options must
be set to Advanced to view or adjust this ISU.
This ISU is only displayed for conventional
systems that have 2 heat 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.
No ISU 3010 Temperature Control Options must
be set to Advanced to view or adjust this ISU.
This ISU is only displayed for conventional
systems that have 3 heat 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 3 is set to 2° F (1.0° C), the
indoor temperature must be 2° F (1.0° C) away
from the setpoint before stage 3 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.