Lennox 11U61 Setup And Installation Manual page 19

2. From the Features screen, select system settings.
3. Touch the button of the dehumidification settings you
want to adjust; if it says de-humidifier OFF, one touch
will display a selection for OFF, MEDIUM or HIGH.
4. Selecting MEDIUM or HIGH will bring on the set-to
button.
5. When you touch the set-to button, the arrows
appear, allowing you to change to the desired
de-humidifier percentage setting.
SYSTEM SETTINGS
humidification
settings
%
40
humidifier
is ON
set to
ALL CHANGES MADE ON
THIS SCREEN ARE IN­
STANTLY SAVED.
Wi-Fi
9:39 am Aug 15, 2012
Figure 15. Humidifier Controls (Outdoor Unit)
HOW DEHUMIDIFICATION MODE WORK — NO
EXTERNAL DEHUMIDIFICATION DEVICE
NOTE - OFF, MEDIUM and HIGH dehumidification modes
are also a function of the HVAC system with NO external
dehumidification devices installed.
In OFF mode, dehumidification if off.
dehumidification
settings
OFF
de-
%
50
humidifier
MEDIUM
set to
MEDIUM
HIGH
current indoor humidity is 50%
In MEDIUM mode, dehumidification occurs if these
conditions are met and signals are present at specific
terminals:
• dehumidification has been enabled on installer
settings, and
• the unit is in COOL mode, and
• dehumidification demand exists (RH above setpoint),
and
• cooling demand exists (Y1 energized).
In HIGH mode, dehumidification occurs if all BASIC
conditions are true, except cooling demand may or may not
be present. Also note that:
• Maximum over cool from cooling setpoint is 2ºF.
humidifier
display
• Deadband temperature is limited to a minimum of
is ON
5ºF (instead of 3ºF in DRY or MODERATE modes)
(default is ON)
because of 2ºF overcooling.
AUXILIARY DEHUMIDIFIER — OUTDOOR UNITS
Control State
?
Auxiliary dehumidification
is controlled by
thermostat.
Auxiliary dehumidification
is controlled by dehumidi­
fication control.
19
Conditions
•
System must be in cooling mode and have
a call for dehumidification from the
thermostat. This will start the auxiliary
dehumidifier.
•
A separate wire from auxiliary dehumidifier
will need to be run to G terminal on indoor
unit control to start the blower.
Needs a dehumidification demand from the
stand-alone dehumidification thermostat and a
separate wire run to G terminal on indoor unit to
start the blower.
7-Day Programmable iComfort Wi‐Fi
®
Flex Thermostat