YORK INTERNATIONAL
100
FORM 100.50-NOM1 (604)
Parameter Description and Options
SECTION 7 – PARAMETER DESCRIPTIONS AND OPTIONS
PARAMETER DESCRIPTION AND OPTIONS
(SETPOINTS)
The parameters listed in this section are setpoints
that
are programmable
through the OCC. The pa ram e ters,
or setpoints, are listed by Key Pad “groups” and are ar-
ranged in order as displayed on the OCC display. These
setpoints are also listed in Table 21 and show the units
of measure, default values, and value ranges. The text
enclosed in parentheses is the name shown on the OCC
display for the setpoint when it differs from the full name
as illustrated in the following explanation.
STATUS KEY PARAMETERS
Date and Time
The current date and time are entered. Twelve-hour
time is used. The day of the week is calculated from
the date.
SETPOINT KEY PARAMETERS
These setpoints are user setpoints that are intended to
be programmed in the
Þ
eld.
Unoccupied Heating
This value is the Unoccupied Heating Setpoint when in
the unit is in the unoccupied mode.
Unoccupied Cooling
This value is the Unoccupied Cooling Setpoint when
the unit is in the unoccupied mode.
Occupied Heating
This value is the Occupied Heating Setpoint for a
constant volume unit when the unit is in the occupied
mode.
Occupied Cooling
This value is the Occupied Cooling Setpoint for a
constant volume unit when the unit is in the occupied
mode.
VAV Cool High Temp
The control will maintain this SAT when operating in
the VAV mode with a Thermostat or Network Commu-
nicated Sensor that is calling for
Þ
rst stage cooling. The
control will also maintain this SAT when operating in
the VAV stand alone mode with the economizer active.
If “
OA SAT Reset”
is enabled and the outdoor tempera-
ture is below the
“VAV SP for SAT Reset”
the Primary
Unit Controller will control to this temperature.
VAV Cool Low Temp
The control will maintain this SAT when operating in
a VAV mode with a Thermostat or Network Commu-
nicated Sensor that is calling for second stage cooling.
The control will also maintain this SAT when operating
in the VAV stand alone mode when the economizer is
not active.
VAV SP For SAT Reset
This parameter is used only in VAV mode with the
VAV
Operation With Thermostat
selection set to OFF. This
setpoint will be used to reset the SAT setpoint based on
Space temperature or Outside Air temperature.
• If the
Outside Air SAT Reset
se lec tion is set to ON,
the control will monitor the outside air tem per a ture
and reset the SAT when the OAT is equal to or
greater than this setpoint.
• If the
Outside Air SAT Reset
se lec tion is set to
OFF, the control will use the Space Sensor and
re set the SAT when the space temperature is equal
to or greater than this setpoint.
Duct Static Pressure
This is the supply duct static pressure setpoint that the
control will maintain when operating a VFD supply
fan.
Building Pressure
This is the building pressure setpoint the control will
maintain when operating a Power Exhaust. This set-
point will be used for Power Exhaust Con
Þ
gurations
1,2 or 3 (see explanation under Con
Þ
guration Key
pa ram e ters).
Economizer 1
st
Stage
This tells the control what Supply Air Temperature to
maintain for a call for
Þ
rst stage of cooling. This is
used only during Constant Volume cooling mode with
Econ o miz er operation.
