Setpoint Descriptions - valent VPR Series Controls Instruction Operation & Maintenance

Setpoint Descriptions

This section contains definitions for all setpoints
available on the LCD, UMT, Web UI, and also
via BACnet and LonTalk. Setpoints are listed
here by their descriptions. Setpoints may have
different names on different displays. Refer to
the following for display names and setpoint
parameters:
Setpoint List, page 29.
BACnet Setpoint List, page 34.
LonTalk Setpoint List, page 37.
1.0 Air Cooled Head Pressure Setpoint
Sets the saturated condensing temperature
target for the Active Head Pressure Control
(condenser fan) control loop. Applies to air-
cooled units equipped with Active Head
Pressure Control 1.0 and running in Cooling or
Dehumidification mode. Consult the factory
before adjusting this setpoint.
10 Volts Opens Chilled Water Valve
When set to True, the control system assumes
that a direct acting water valve is installed and
10VDC output = full flow. If set to False, the
control system assumes a reverse acting water
valve is installed.
10 Volts Opens Hot Water Valve
When set to True, the control system assumes
that a direct acting water valve is installed and
10VDC output = full flow. If set to False, the
control system assumes a reverse acting water
valve is installed.
2.0 Air Cooled Head Pressure Dehumidification
Setpoint
Sets the saturated condensing temperature
target for the Active Head Pressure Control
(condenser fan) control loop. Applies to air-
cooled units equipped with Active Head
Pressure Control 2.0 and running in
Dehumidification mode. Consult the factory
before adjusting this setpoint.
2.0 Air Cooled Head Pressure Setpoint
Sets the saturated condensing temperature
target for the Active Head Pressure Control
(condenser fan) control loop. Applies to air-
cooled units equipped with Active Head
Pressure Control 2.0 and running in Cooling
Valent Controls IOM
mode. Consult the factory before adjusting this
setpoint.
Air Flow Monitoring Damper Area
Consult the factory before adjusting this
setpoint.
Air Flow Monitoring Damper Flow
The airflow, in CFM, as measured by the airflow
monitoring damper (AMD), if installed in the
outdoor air stream.
Air Flow Monitoring Damper K Factor
Consult the factory before adjusting this
setpoint.
Air Flow Monitoring Damper M Factor
Consult the factory before adjusting this
setpoint.
Air Flow Monitoring Damper Setpoint
The rate of air flow, in CFM, that the air flow
monitoring damper maintains when the unit is
occupied.
Air Flow Monitoring Device Transducer Range
Consult the factory before adjusting this
setpoint.
Air Flow Monitoring Exhaust Cone Flow
The exhaust air flow, in CFM, as measured by a
fan inlet cone air flow monitoring station, if
installed.
Air Flow Monitoring Exhaust Cone K Factor
Consult the factory before adjusting this
setpoint.
Air Flow Monitoring Supply Cone Flow
The air flow, in CFM, as measured by a fan inlet
cone air flow monitoring station, if installed.
Air Flow Monitoring Supply Cone K Factor
Consult the factory before adjusting this
setpoint.
Air Flow Monitoring Thermal Dispersion Damper Max
Velocity
Consult the factory before adjusting this
setpoint.
40 IOM-C1-0616
Part Number 474626