Greenheck Vari-Green Control - Constant Pressure/Air Flow Control (479653) - Manual (Page 6)

Constant Press
Control Mode
Constant Airflow
Control Mode
Setpoint
Location: Remote
1.00 in WC
Maximum Setpoint
2 to 10 VDC
Remote Setpoint
-1.00 in WC
Minimum Setpoint
0 to 10 VDC
Remote Setpoint
10,000 CFM
Maximum Setpoint
2 to 10 VDC
Remote Setpoint
0 CFM
Minimum Setpoint
0 to 10 VDC
Remote Setpoint
Measurement
Device: Pitot
Measurement
Device: AMS
4.00 sq ft
Duct Area
2,000
AMS “K” Value
0.5000
AMS “m” Value
1.00
Air Density Corr
1.00
Pitot Correction
0 to 10 VDC
Control Output
2 to 10 VDC
Control Output
0 seconds
Sensor Filter
3 seconds
Startup Timer
Fast
Response Time
Inlet
Fan Control on:
Outlet
Metric
Units of Measure
Imperial
Units of Measure
Save
SET
K = 4005
m = 0.5
0 to 10 VDC
Airflow Output
2 to 10 VDC
Airflow Output 0 to 10 VDC
Pressure Output
2 to 10 VDC
Pressure Output
IF
Pressure Sensor
=
Internal
IF
Pressure Sensor
=
Remote
1.00 in WC
Rem Sensor Max
-1.00 in WC
Rem Sensor Min
Setpoint
Location: Local
Medium
Response Time
Slow
Response Time
Enter to Select
Initial Setup
Setpoint
Location: Remote
Setpoint
Location: Local
5000 CFM
Max Flow Output
Fan Control on:
1 - Initial Setup – select this menu
to change settings related to the
application of the control, such as:
• Pressure or airflow mode
• Local or remote setpoint
• Fan inlet or outlet control
The Setpoint Edit menu (pg. 8) is
then used to adjust the common
setpoints, such as:
• Pressure or airflow mode
• Cutout settings
• Min/max output %
• Override, digital output %
PROG Mode:
Set the control to program mode to
adjust initial settings and setpoints.
A manual mode also exists to
manually set the output of the
control.
Menu Structure
The structure of the program menu is
shown below. A detailed description
of the parameters follows
the diagram.
1-
2-
3-
4-
Main Menu
Initial Setup Enter to
select
IF
Setpoint = Local
AND
Control Mode = Constant Pressure
IF
Setpoint = Local
AND
Control Mode = Constant Airflow
Pressure Setpnt
-0.010 in WC
Cutout Setpoint Fan
Speed: 20.8%
Cut Ret Pres Set
0.010 In. WC
30 Seconds
Cutout Delay
Airflow Setpoint
5000 CFM
20%
Minimum Output %
100%
Override Out %
100%
Maximum Output %
100%
Dig Output Set
Save
Manual Out: 50%
Ps: 0.00 in WC
Restore Factory Defaults:
No
YES
Are you sure?
Exit
IF
Setpoint = Remote
IF
Control Mode = Constant Pressure
IF
Control Mode = Constant Airflow
Setpoint Edit
Enter to select
Manual Control
Enter to select
Restore Factory Defaults:
Yes
Factory Defaults Enter to
select
IF
Control Mode = Constant Pressure
IF
Control Mode = Constant Airflow
Manual Out: 50%
Flow: 0 CFM
Exit
Manual Control Enter to
select
Factory Defaults Enter to
select
Setpoint Edit Enter to
select
Constant Pressure Control 6