Orion System VCC-X Controller - Manual (Page 30)

Zone
Zone
VCC-X CONFIGURATION
VCC-X Operator Interface SD 30
VCC-X Confi guration Screens
Confi guration Screen #27 - Mechanical Heat/
Cool Alarm Delay
VCC-X Cnfg ID #
Mech Heat/Cool
Alarm Delay: 15Min
Enter a time delay between 0-240 minutes for a delay in the time that
it takes an alarm to be generated.
When Heating or Cooling Mode is
initiated and staging is activated, if the Supply Air Temperature does
not rise or fall 5°F within this time period, a Mechanical Heating
or Cooling failure alarm will be generated. The Alarm is for Status
Reporting only. The HVAC unit will continue to run. This alarm
does not apply if Modulating Cooling or Heating are confi gured.
Default is 15 minutes.
Description Minimum Default Maximum
Mechanical Heat/Cool
Failure Alarm Delay 0 Min 15 Min 240 Min
Confi guration Screen #28 - Economizer Control
Type
VCC-X Cnfg ID #
Econo Control Type
No Economizer
USE < or > TO CHANGE
Default is No Economizer. Available options are:

No Economizer

Standard Economizer

IAQ Economizer (Economizer with CO
2
Override)
Confi guration Screen #29 - Title 24 Economizer
VCC-X Cnfg ID #
Title 24
Economizer: NO
USE < or > TO CHANGE
If this unit has Title 24 Economizer operation, this option should be
confi gured as YES. Default is NO.
Confi guration Screen #30 - Economizer in
Unoccupied Mode
VCC-X Cnfg ID #
Econo Control In
Unoc Mode: NO
USE < or > TO CHANGE
Select YES for the Economizer to operate in the Unoccupied Cooling
Mode. Default is NO.

NO — You want the Economizer to always remain fully
Closed in the Unoccupied mode.

YES — You want to use the Economizer as necessary
during Unoccupied Night Setback cooling calls. It will
be utilized just as it would be in the Occupied mode with
the same outdoor enable temperature. If not being used
for Night Setback Free Cooling, the Economizer will be
closed.
Confi guration Screen #31 - Economizer Enable
Source
VCC-X Cnfg ID #
Econo Enable Source
Drybulb
USE < or > TO CHANGE
This confi guration option is available if the unit was confi gured for
Economizer Control.
Default is Drybulb. Available options are:

Drybulb — If the Outdoor Air Drybulb temperature is
below the Economizer Enable Setpoint, the Economizer
can be used as the fi rst stage of cooling.

Wetbulb (OA RH Sensor needed) — If the Outside Air
Wetbulb temperature is below the Economizer Enable
Setpoint, the Economizer can be used as the fi rst stage of
cooling.

Dewpoint (OA RH Sensor needed) — If the Outdoor
Air Dewpoint temperature is below the Economizer
Enable Setpoint, the Economizer can be used as the fi rst
stage of cooling.
Confi guration Screen #32 - Economizer Control
Loop Rate
VCC-X Cnfg ID #
Economizer Control
Rate: 10 s
[ 1 - 30 Seconds ]
Enter a number between 1 and 30 seconds. This is the time period
between changes to the Economizer position. Default is 10 seconds.