Honeywell TH6100AF2004 Installation Instructions Manual page 9

Advanced setup options (ISU)
# ISU ISU Name
576 Maximum Floor
Temperature Limit
577 Floor Economy
Mode
578 Freeze protection
temperature
1400 Backlighting
1401 Inactive Backlight
Brightness
1410 Clock Format
1415 Daylight Saving Time
1420 Temperature Display
Offset
ISU Options (factory defaults
in bold)
50 °F* to 99 °F (85 °F);
10 °C* to 38 °C (29.5 °C)
0 = Off
1 = On
A mode:
40 °F to 50 °F (40 °F);
4.5 °C to 10.0 °C (4.5 °C)
AF mode:
40 °F (4.5 °C) to Min. Floor Temp.
Limit
F mode:
40 °F (4.5 °C) to Min. Heat Temp.
Setpoint
0 - On Demand
1 - Continuous
1 - 5
12 / 24
0 = Off
1 = On
-3 - 3 °F (0)
-1.5 to 1.5 °C (0)
Notes
*If the floor temperature is above that limit, the
heating will turn off regardless of the ambient Air
temperature. This ISU is only displayed if Temperature
Control Mode (ISU 299) is set to AF mode. The
maximum floor temp limit setting cannot be set lower
than 10 degrees above the minimum floor temp limit
setting.
If enabled, Low Floor Temperature Limit (ISU 575)
will be disabled during Away and Sleep period. This
ISU is only displayed if Temperature Control Mode
(ISU 299) is set to AF mode and (ISU 120) is set to
programmable.
The thermostat operates the heat whenever the room
or floor temperature falls below that limit, even when
the system mode is set to Off. Default setting is 40 °F
(4.5 °C) for all A/AF/F regulation modes.
Freeze protection temperature cannot be set above the
minimum floor temperature limit in AF mode or above the
minimum heat temperature setpoint in F mode.
Common wire needed for Continuous Backlight
This ISU is only displayed if Continuous Backlight
selected.
1=minimum, 5=maximum inactive backlight
brightness
Set to Off in areas that do not follow Daylight Saving
Time.
0°F - No difference in displayed temperature and the
actual room temperature. The thermostat can display
up to 3 °F (1.5 C) lower or higher than the actual
measured temperature.
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