Honeywell PRESTIGE THX9321 - Manual (Page 33)

THX9321 PRESTIGE ® 2.0 AND THX9421 PRESTIGE ® IAQ WITH EIM
33 68-0311—02
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
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 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.
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.
Table 4. Installer Setup (ISU) Table. (Continued)
ISU
Number
Installer Setup
Name Settings Default
Residential,
Commercial
or Both
Requires
EIM Notes