Orion System VCC-X Controller - Manual (Page 26)

Zone
Zone
VCC-X CONFIGURATION
VCC-X Operator Interface SD 26
VCC-X Confi guration Screens
Confi guration Screen #3 - RSM #3 & #4
Modules Installed
VCC-X Cnfg ID #
RSM#3 Installed: NO
RSM#4 Installed: NO
USE < or > TO CHANGE
If you have a 3rd RSMV Module installed, the 1st confi guration op-
tion should be confi gured as YES. If you have a 4th RSMV Module
installed, the 2nd confi guration option should be confi gured as YES.
Default is NO.
Confi guration Screen #4 - EM1 Expansion
Module Installed
VCC-X Cnfg ID #
EM1 Installed: NO
USE < or > TO CHANGE
If you have Expansion Module EM1 installed, this confi guration
option should be confi gured as YES. Default is NO. If your unit
utilizes the following, an EM1 Module is required:

Modulating Chilled Water
 
Return Air Bypass Control
 
Title 24 Economizer Actuator Feedback
Confi guration Screen #5 - MHGRV-X &
MODGAS-X Installed
VCC-X Cnfg ID #
MHGRV Installed: NO
MODGS Installed: NO
USE < or > TO CHANGE
If you have an MHGRV-X Controller installed, the fi rst confi gura-
tion option should be confi gured as YES. If you have a MODGAS-
X Controller installed, the second confi guration option should be
confi gured as YES. Defaults are NO.
Confi guration Screen #6 - 12 Relay E-BUS
Expansion Module Installed
VCC-X Cnfg ID #
12RLY Installed: NO
USE < or > TO CHANGE
If you have a 12 Relay E-BUS Expansion Module installed, this
confi guration option should be confi gured as YES. Default is NO.
Confi guration Screen #7 - PREHEAT-X
Controller Installed
VCC-X Cnfg ID #
Preheat-X
Installed: NO
USE < or > TO CHANGE
If you have a PREHEAT-X Controller installed, this confi guration
option should be confi gured as YES. Default is NO.
Confi guration Screen #8 - HVAC Mode Enable Source
VCC-X Cnfg ID #
HVAC Source
Supply Air
USE < or > TO CHANGE
This selects which sensor will determine the mode of operation of
the unit and how it will operate. Default is Supply Air. Available
options are:
 
Supply Air —This is for a standard Cooling Only VAV
unit with optional Morning Warm Up. In the Occupied
Mode, the unit will be in the Cooling Mode controlling
to the Cooling Supply Air Setpoint.

Supply Air/Tempering —This selection is for VAV
“cooling only” applications where because of cold
outdoor temperatures, heat may need to be added in
order to maintain the “Cooling” Supply Air Setpoint.
This application requires Outdoor Air Enable Setpoints
to be confi gured in order to initiate Cooling and Heating
Modes. The Cooling and Heating Supply Air Setpoints
can then both be set to the same temperature (e.g. 55 º ).

Outdoor Air —This is for a 100% OA Unit (MUA) using
the OA Temperature Sensor to determine the Heating,
Cooling, and Vent Modes of operation. Dehumidifi cation
utilizes an Outdoor Air Dewpoint Setpoint.

Return Air —Optional recirculating unit confi guration
using the Return Temperature Sensor to determine the
Heating, Cooling, and Vent Modes of operation.

Space Temperature —Typical recirculating unit using
a Space Temperature Sensor to determine the Heating,
Cooling, and Vent Modes of operation.

Space Temperature with High % OA CFM— If it is
preferable to use Space conditions (instead of Outside
Air) to control a 100% or high percentage outdoor air
unit, this option allows tempering of the outdoor air in
the Space Vent Mode of operation to prevent dumping of
hot or cold air into the space. See the Sequence of
Operations for details.

Single Zone VAV —Recirculating unit using the Space
Temperature Sensor to determine the mode of operation.
Heating and Cooling are controlled to a Leaving Air
Setpoint. Space Temperature resets the Supply Fan VFD
speed to maintain the Space Temperature. Modulating
Heating and Cooling must be used for this operation.
Can be confi gured for CAV Heating using staged Heat.