Dehumidification - Commercial - Honeywell Home VisionPRO 8000 Manual

®
VISIONPRO 8000 WITH REDLINK™
Control Dehumidification Level
1. Touch MENU and select Dehumidification.
Fig. 206.
Dehumidification
Equipment Status
Fig. 207.
2. Select Auto.
Dehumidification
Off
Fig. 208.
 
3. Touch or to select humidity level.
4. Touch Done to save your settings. Touch Cancel to
ignore changes.
NOTE: If your air conditioner is used to control humidity,
the temperature may drop up to 3° F below your
temperature setting until humidity reaches the
desired level.
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
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 (for example, main level and crawl space), the
thermostat will allow humidification and dehu-
68-0312—06
MCR34100
MCR34130
Auto
MCR34131
midification to operate at the same time, and there
is no deadband between humidification and dehu-
midification settings.

Dehumidification - Commercial

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
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 Equipment Options: (ISU 900)
• A/C with Low Fan
• A/C with High Fan
• Hot Gas Bypass
• Dehumidifier
NOTE: Hot Gas Bypass - During a call for dehumidifica-
tion, the cooling capacity will be used to remove
more latent heat than sensible heat. The operation
of Hot Gas Bypass varies by equipment. For more
details, contact the equipment manufacturer.
Dehumidification using the Cooling
System
Dehumidification using A/C with Low Speed Fan, A/C with
High Speed Fan or Hot Gas Bypass, has the following
methods of dehumidification control (ISU 908):
Basic (ISU 908): This option uses the cooling system to
reach the desired humidity level. Minimum On Time,
Cooling Droop and Reheat are not used with this method.
This setting is commonly used if your dehumidification
equipment is Hot Gas Bypass.
88
Fig. 209.