TCONT900AC43UA
Pub. No. 18-HD32D1-2
69-2079—05 8
Schedule Options 0160 4 0, 4 0 - Non-programmable
4 - 7 Day programmable
When ISU0160 is changed
from 0 (non-programmable
to 4 (programmable),
“Permanent Hold” will
display under the time icon.
This goes away when the
schedule key is hit or when
the schedule menu is
entered.
Restore Energy Star
Schedule
0165 0 0, 1 0 - No
1 - Resets the schedule to
default Energy Star
No ISU or USU settings
affected.
System Selection
0172 E E, 1-3 E - Auto-Discover
1 - Heat/Cool
2 - Heat Pump
3 - Heat Only (no fan)
If no equipment is
connected during the Auto-
Discovery process, the
system mode will be stuck
at “off” and no equipment
will run.
Compressor Stages 0174 E E, 0-2
E - Auto-Discover
0 - None
1 - Single Stage
2 - Two Stage/Two Step
A minimum of 1H or 1C is
required.
Heater Stages 0176 E E, 0-3
E - Auto-Discover
0 - None
1 - Single Stage
2 - Two Stage
3 - Three stage
A minimum of 1H or 1C is
required.
Fan Operation 0180 E E, 0, 1 E - Auto-Discover
0 - Equipment controls fan
operation in heat mode
(fossil).
1 - Comfort Control
controls fan operation in
heat mode (electric).
Only seen if ISU 0172 is set
to 1.
Indoor Unit Type 0181 E E, 0, 1
E - Auto-Discover
0 - Non-variable Speed
1 - Variable Speed
Compressor Low
Stage Airflow
0182 E
2 Stage =
50%
2 Step =
80%
E, 25, 30,
35, 40,
45,
50, 55,
60,
65, 70,
75,
80
E - Auto-Discover,
25% - 80% in 5%
increments
Only shown for variable
speed indoor units.
Options may vary based on
actual system installed.
Compressor Stage 2
Airflow
0183 100% 100 Not Auto-discovered
Only shown for variable
speed indoor units.
Options may vary based on
actual system installed.
Heat Pump Warm Air
Discharge
0185 0 0, 1
0 - Disabled = 100%
1 - Enabled = 80%
Only shown for variable
speed indoor units.
Continuous Fan
Airflow
0186 50
25, 30,
35,
40, 45,
50,
55, 60,
65,
70, 75,
80,
85, 90,
95,
100
25% - 100% in 5%
increments
Only shown for variable
speed indoor units.
Table 4. Installer Setup Menu
Selection
Installer Setup
Number (ISU)
Factory
Setting
Choices
CommentsOption Description
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