VCC-X Operator Interface SD
VCC-X CONFIGURATION
33
All Modes Occupied—This is Occupied Mode
Dehumidifi cation Priority. The unit can enter
Dehumidifi cation during Cooling, Heating, or Vent
Modes, but only while in Occupied operation.
All Modes Anytime—This is Occupied and
Unoccupied Dehumidifi cation Priority. The unit can
enter Dehumidifi cation during Cooling, Heating, or Vent
Modes while in Occupied or Unoccupied operation.
For units controlled by space humidity sensors, Dehumidifi cation
is initiated based on an Indoor Humidity Setpoint. For 100% OA
units (MUA), Occupied Dehumidifi cation is initiated based on
an Outdoor Air Dewpoint Setpoint. For MUA units, Unoccupied
Dehumidifi cation can only occur if the unit is confi gured for Night
Setback recirculating operation and has a Space Humidity sensor
and a Space Humidity Setpoint.
Confi guration Screen #45 - Humidity Control
Sensor Type
VCC-X Cnfg ID #
Humidity Control
Sensor: Space
USE < or > TO CHANGE
Select Space, Return, or Outdoor if an E-BUS Humidity Sensor is
installed. Default is Space.
Confi guration Screen #46 - Reheat Type
VCC-X Cnfg ID #
Reheat Control
None
USE < or > TO CHANGE
This confi guration option is available if Dehumidifi cation has been
confi gured. If you need Reheat in the Dehumidifi cation mode, this
screen allows you to confi gure what kind of reheat will be used.
The output(s) will be staged or modulated to maintain the Active
Supply Air Setpoint. Default is None.
Select the type of reheat that
will be used during dehumidifi cation.
None—No reheat.
On/Off HGR Relay—Single On/Off Reheat stage
(Reheat Relay).
Mod HGR—Modulating Hot Gas Reheat (MHGR)
Unit Heat—Using the unit’s heat as Reheat when Hot
Gas Reheat is not available.
Mod HGR + Unit Heat—Using MHGR as the 1
st
form of Reheat, supplemented by unit Heat if necessary.
On/Off HGR + Unit Heat—Using “Reheat Relay”
stage as the 1
st
form of Reheat, supplemented by unit
Heat if necessary.
VCC-X Confi guration Screens
Confi guration Screen #47 - Type of Airfl ow
Station
VCC-X Cnfg ID #
Airflow
Station: Paragon
USE < or > TO CHANGE
Select the type of Airfl ow Monitoring Station you are using, if any.
Selections are Ebtron or Paragon. Default is Paragon.
Confi guration Screen #48 - Monitor Outdoor
Air Airfl ow
VCC-X Cnfg ID #
Monitor OA Airflow
NO
USE < or > TO CHANGE
Select YES if you have an Airfl ow Monitoring station measuring the
CFM of the Outdoor Air airfl ow stream of this unit. Default is NO.
Confi guration Screen #49 - Control Outdoor
Air CFM
VCC-X Cnfg ID #
Control Outdoor Air
CFM: NO
USE < or > TO CHANGE
Select YES if you have an Airfl ow Monitoring station and are
controlling the Outdoor Air Damper to an airfl ow (CFM) Setpoint.
Default is NO.
Confi guration Screen #50 - Outdoor Airfl ow
Duct Size
VCC-X Cnfg ID #
Outdoor Airflow Duct
Size: 0.00
[ In Square Feet ]
For the controller to properly calculate the Outdoor Air CFM, you
need to
enter the area in square feet of the Outdoor Air duct/damper.
When measuring the Outdoor Air duct damper area, be sure to mea-
sure the inside dimensions of the damper. The duct size needs to be
accurate to two decimal places. The more accurate the measurements,
the more accurate the CFM reading will be. Default is 0.
Description Minimum Default Maximum
Outdoor Air Airfl ow Duct Size 0 0 200.00
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