Orion System VCM-X/RNE Operator Interfaces - Manual (Page 19)

VCM-X / RNE Operator Interfaces Technical Guide
VCM-X CONFIGURATION
19
Confi guration Screens
In order to correctly set up the VCM-X Controller, you must fi rst con-
fi gure several parameters in regard to the type of HVAC unit and system
you have installed. Most of these values and operating parameters are
only set once at the initial system setup and are never changed.
System Manager Instructions
No matter what screen or menu you’re in, press
<SETPOINTS>
. The
Unit Selection Screen will appear, requesting that you enter the unit ID
number. Enter the correct unit ID number of the VCM-X Controller
you want to confi gure and press
<ENTER> . You will see the screen
shown below.
1) Change Setpoint
2) Configure Unit
3) Damper Force
ESC) Exit Menu
Press
<2>
to enter Confi guration Screen #1.
Modular Service Tool Instructions
No matter what screen or menu you’re in, press <CONFIGURATION> .
The Unit Selection Screen will appear, requesting that you enter the unit
ID number. Enter the correct unit ID number of the VCM-X Controller
you want to confi gure and press
<ENTER>
. You will then see Unit
Confi guration Screen #1.
Confi guration Screen #1 - Duct Static
Pressure
VCM-X Cnfg ID 59
Duct Static Pressure
Control: YES
[0=NO 1=YES]
If the HVAC unit has a Supply Fan that delivers a Constant Volume of
air, enter
<0> for NO. If the HVAC unit has a Supply Fan that delivers
a Variable Volume of Air using a VFD or a Bypass Damper, enter <1>
for YES. Default is YES.
Confi guration Screen #2 - Supply Fan Cycle
VCM-X Cnfg ID 59
Supply Fan Cycle
Mode: NO
[0=NO 1=YES]
If you want the HVAC unit’s Supply Fan to run during Heating, Cool-
ing, or Dehumidifi cation Modes, enter
<1> for YES. If you want the
HVAC unit’s Supply Fan to run continuously while in the Occupied
Mode, regardless of the Heating, Cooling, or Dehumidifi cation Modes,
enter
<0>
for NO. Default is NO.
Confi guration Screen #3 - HVAC Mode Enable
VCM-X Cnfg ID 59
HVAC Mode Enable
Supply Air
Press “0” to Change
Enter <0> to select the Temperature Sensor that will determine the
Heating, Cooling, or Vent Mode of operation. The selections are:
 
Supply Air
This is typical for VAV applications. Occupied Cooling
with Morning Warm-up.

Outdoor Air
This is for 100% Outdoor Air (MUA) units.
Dehumidifi cation utilizes a Dewpoint Calculation if
equipped with an Outdoor Air Humidity Sensor.

Space Temperature
This is for any unit that conditions a space and is not 100%
Outdoor air. Occupied/Unoccupied Heating, Cooling, and
Vent Modes of operation.

Return Air
This selection can be used when an Average Building
Temperature (the Return Air Temperature) needs to
determine Heating, Cooling, and Vent Modes of operation.

Supply Air/Tempering
This selection is for VAV “cooling only” applications where
because of cold outdoor temperatures, even at minimum
damper position, you may need to enable heat to maintain
the cooling near its Cooling Supply Air Setpoint. When
heat is enabled during this sequence, it will control to
a non-adjustable setpoint that is 2ºF less than the Cooling
Supply Air Setpoint. Includes a Morning Warm-up
sequence.
Confi guration Screen #4 - HVAC Reset Source
VCM-X Cnfg ID 59
HVAC Reset Source
No Reset
Press “0” to Change
The Supply Air Heating and Cooling Temperature Setpoints can be reset
using various input sources. Default is No Reset. Enter
<0> to change/
select the desired Reset Source for Supply Air Temperature Reset. The
Single Zone VAV option should be selected in applications where the
Supply Fan VFD speed is reset based on the Space Temperature. If you
select No Reset, then neither the Supply Air Setpoint nor the Supply
Fan VFD Reset will occur. The selections are:

No Reset

Fan VFD Percentage

Sp ace Sensor

Outdoor Sensor

Return Air Sensor

Single Zone (SZ) VAV

Remote Reset Signal

SZ VAV with CV Heating
VCM-X Confi guration Screens