VCC-X SETPOINTS
VCC-X Operator Interface SD
48
Setpoint Screen #26 - WSHP Head Pressure
Setpoints - Cooling and Reheat
VCC-X Spts ID:#
WSHP Head Pres Spts
Cooling: 235psi
Reheat: 350psi
If a WSHP-X2 Module is connected to the RSM Module you can
control a Condenser Fan or a Condenser Water Valve to maintain
these Head Pressure Setpoints in the Cooling and Dehumidi
fi
cation
Reheat Modes.
Description
Minimum
Default
Maximum
WSHP Cooling Head
Pressure Setpoint
200 PSI
235 PSI
350 PSI
WSHP Reheat Head
Pressure Setpoint
200 PSI
350 PSI
350 PSI
Setpoint Screen #27 - Condenser Fan Cycle -
Enable & Deadband
VCC-X Spts ID:#
Condenser Fan Cycle
Enable: 310psi
Deadband: 50psi
If a Head Pressure Transducer is connected to the RSM Module,
you can control an On/Off Condenser Fan to control Head Presure
in the Cooling Mode. The Fan will turn on when the Head Pressure
is above the Enable Setpoint. The Deadband is subtracted from
the Condenser Fan Cycle Enable Setpoint. The Fan turns off when
below this value.
Description
Minimum
Default
Maximum
Condenser Fan Cycle
On/Off Enable
245 PSI
310 PSI
470 PSI
Condenser Fan Cycle
Deadband
35 PSI
50 PSI
100 PSI
Setpoint Screen #28 - Condenser Fan Cycle -
Reheat Offset Enable
VCC-X Spts ID:#
Condenser Fan Cycle
Reheat Offset
Enable: 50psi
This value is added to Condenser Fan Cycle Enable to enable the
Condenser Fan during Dehumidi
fi
cation Mode.
Description
Minimum
Default
Maximum
Condenser Fan Cycle
Reheat Offset Enable
50 PSI
50 PSI
150 PSI
Setpoint Screen #29 - Economizer Enable
Setpoint
VCC-X Spts ID:#
Economizer Enable
Setpoint: 55.0
º
F
If this unit has been con
fi
gured for Economizer control and an Out-
door Humidity Sensor is not connected to the VCC-X Controller, if
the Outdoor Temperature falls below this setpoint, the Economizer
can be used for free cooling. If a combination Outdoor Air Tem-
perature/Humidity Sensor is connected to the VCC-X Controller and
the Wetbulb or Dewpoint Temperature falls below this setpoint, the
Economizer can be used for free cooling.
Description
Minimum
Default
Maximum
Economizer Enable
-30ºF
(-34.4
º
C)
55ºF
(12.8
º
C)
80ºF
(26.6
º
C)
Setpoint Screen #30 - Economizer Minimum
Damper Position
VCC-X Spts ID:#
Economizer Min
Damper Pos: 10%
The Economizer (OA Damper) Minimum Position Setpoint is
maintained during the Occupied Mode even if the Economizer is
disabled due to the OA Temperature being above the Economizer
Enable Setpoint.
Description
Minimum
Default
Maximum
Economizer Min Position
0%
10%
100%
Setpoint Screen #31 - Maximum Economizer
Position in Heat Mode
VCC-X Spts ID:#
Max Econo Pos In
Heat Mode: 50%
This Setpoint allows you to set the Maximum Position the Outdoor
Air Damper will open to while Heating is operating. This takes prior-
ity over the Economizer Maximum Position in High CO
2
Setpoint.
Description
Minimum
Default
Maximum
Maximum Economizer
Position in Heat Mode
0%
50%
100%
VCC-X Setpoint Screens
