Dehumidification - Residential - Honeywell Home VisionPRO 8000 Manual

2. Select Auto.
Humidification
Off
Fig. 186.
 
3. Touch or to select humidity level.
4. Touch Done to save your settings. Touch Cancel to
ignore changes.
5. If frost or condensation appears on the windows,
press MENU, scroll down and select Window Protec-
tion.
Fig. 187.
6. Window Protection is set on a scale from 1–10. A set-
ting of 1 represents poorly insulated windows and a
setting of 10 represents well insulated windows. A
lower number automatically reduces the humidity to
help prevent frost or condensation on your windows.
Use a higher number if indoor air seems too dry. To
prevent frost/condensation on your windows during
cold outdoor temperatures, poorly insulated windows
require a lower Window Protection setting, which will
limit how much your humidifier can run.
7. After you set the Window Protection setting, check for
frost/condensation on your windows in the morning.
If frost/condensation is present, adjust the Window
Protection setting to the next lowest number and
check for frost/condensation on your windows the
next morning. Continue to adjust the Window Protec-
tion setting to a lower number until frost/condensa-
tion is no longer present.
NOTE: The Window Protection option is only available if
an optional outdoor sensor is installed.
NOTE: If humidification and dehumidification are setup
to operate in the same system mode (Heat, Cool,
Off) and you are sensing humidity from one loca-
tion, the thermostat will automatically enforce a
15% deadband between the humidification and
dehumidification settings. The thermostat will
Auto
MCR34129
automatically switch between humidification and
dehumidification to maintain the desired humidity
level.
If humidification and dehumidification are setup
to operate in the same system mode (Heat, Cool,
Off) and you are sensing humidity from two differ-
ent locations using a remote wireless indoor sen-
sor, the thermostat will allow humidification and
dehumidification to operate at the same time, and
there is no deadband between humidification and
dehumidification settings.

Dehumidification - Residential

The thermostat reads the indoor humidity level and allows
the user to set a dehumidification setting. The thermostat
controls the humidity level using the cooling system or a
whole house dehumidifier.
If humidification and dehumidification are setup to operate
in the same system mode (Heat, Cool, Off) and you are
sensing humidity from one location, the thermostat will
automatically enforce a 15% deadband between the
humidification and dehumidification settings. The
thermostat will automatically switch between
humidification and dehumidification to maintain the
desired humidity level.
If humidification and dehumidification are setup to operate
in the same system mode (Heat, Cool, Off) and you are
sensing humidity from two different locations using a
remote wireless indoor sensor (for example, main level and
crawl space), the thermostat will allow humidification and
dehumidification to operate at the same time, and there is
no deadband between humidification and
dehumidification settings.
Dehumidification using the Cooling
System
When set for A/C with Low Speed Fan or A/C with High
Speed Fan, an overcooling limit can be set from 0 °F to 3 °F
(ISU 907). The thermostat uses the cooling system to
reduce humidity by lowering the temperature up to 3° F
below the current cool setpoint until the desired humidity
level is reached.
If set for A/C with Low Speed Fan, configure U1, U2, or U3
as normally open or normally closed (ISU 905) and wire to
the Low Speed Fan terminal on the equipment. For
example, if the U1, U2, or U3 terminal is normally closed, it
will open when the thermostat calls for
dehumidification.See "Wiring IAQ Equipment or a
Heat/Cool Stage to the U Terminals" beginning on
page 130.
NOTE: The thermostat will not lower the fan speed when
the second stage of cooling is on.
Set up Dehumidification With Cooling
System
Some screens shown in this section may not appear on the
thermostat, depending on how you set up
dehumidification.
83
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VISIONPRO 8000 WITH REDLINK™
68-0312—06