ACONT900AC43UA
Pub. No. 11-HD04D1-2
69-2080—05
16
LED Indication
An LED indicator is located in the upper right corner of the
Comfort Control. It is only visible when lighted:
• It indicates that there is an Alert.
• It indicates that the Comfort Control is in Discovery
mode.
LED Indication
FILTER INDICATION
The Comfort Control can track up to two filter timers by
total fan run time or calendar days. This feature can be
used to tell the homeowner when to replace the Furnace
filter or clean the Air Cleaner cells:
Select filter timer reset time:
Total Fan Run Time:
the number of run time days for the
filter timer to count down from: 0, 10, 30, 60, 90, 120, 180,
270, or 365 days. (One run time day represents 24 hours
of continuous fan/system run time.)
Calendar Days:
the number of days for the filter timer to
count down from: 0, 30, 60, 90, 120, 180, or 365 days. To
activate this feature, select a value other than 0
(disabled). See Owner’s Guide for more detailed
information.
Pre-programmed
Table 5 shows the Energy Star default program settings.
See Owner’s Guide for complete instructions on changing
the program.
Alert Code Numbers
The Comfort Control can receive Alert codes from any
communicating equipment via the AccuLink
TM
bus. The
Comfort Control will illuminate the Red “Service” LED and
toggle between the main screen and a screen showing
the Alert code number. When multiple Alert codes exist
simultaneously, the display will cycle through each code
(showing a maximum of the 5 most recent Alerts) and
return to the main screen. See the Alert Code Addendum
(form 18-HD32D2-1/69-2009) for a listing of all equipment
Alert codes.
Equipment Damage Hazard. Minimum
compressor off-time is bypassed during Installer
System Test.
Avoid cycling compressor quickly. Observe compressor
protection period.
System Checkout
Installer System Test
The Installer System Test mode is used to test the
Comfort Control operation with HVAC equipment. See
Table 7. System configuration determines which tests are
available and the number of stages shown. While in
System Test mode, the minimum off time is bypassed.
The Installer Test is part of the Installer Setup options.
Enter Installer Setup screen and press the Down arrow
key for quick access to the test selection(s).
NOTE: Changing tests will turn equipment off.
NOTE: Entering Installer Setup will turn equipment off.
NOTE: NOTE: Charge Assist
TM
mode not available dur-
ing Installer System Tests.
NOTE: Test modes time out after 5 minutes.
Table 5. Energy Star Default Program Settings
Period
Time
Heat
Setpoint
Cool
Setpoint
Fan
Setting
Wake
6:00 AM 70°F (21°C)
78°F (25.5°C) Auto
Leave 8:00 AM 62°F (16.5°C) 85°F (29.5°C) Auto
Return 6:00 PM 70°F (21°C)
78°F (25.5°C) Auto
Sleep 10:00 PM 62°F (16.5°C) 82°F (28°C)
Auto
Table 6. Installer System Tests
Selection
Installer Setup
Number
Factory
Setting
Choices
Comments
Option
Description
Installer Test Cool
Test 1
0
0, 1, 2, 3 0 - Cool is off
1 - Cool stage 1
2 - Cool stage 1, 2
3 - Cool stage 1, 2, 3
Not shown if ISU 0172 is
set to 3 or if ISU0174 is
set to 0.
If Discharge Air
Temperature Sensor is
available, Press the More
key to show the
Discharge Air
Temperature value.
Installer Test Fan
Test 2
0
0, 1
0 - Fan is off
1 - Fan on
Not shown if ISU 0172 is
set to 3.
If Discharge Air
Temperature Sensor is
available, Press the More
key to show the
Discharge Air
Temperature value.
