Section 7 - Parameter Descriptions And Options; Table 16 - Definitions - York YSCD Manual

Versecon air conditioning unit
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SECTION 7 – PARAMETER DESCRIPTIONS AND OPTIONS
TABLE 16 – DEFINITIONS
MENU ITEM
# DUCT SENSORS - 1 OR 2 Identifi es the number of duct static inputs the Unit Control is programmed for.
AC - S/A DEW EN
AC DX TEMP
AC R/A TEMP
AC S/A DEW
AC S/A TEMP
AC/ECON-RA SP
AC/ECON-S/A SP
AC-R/A TEMP EN
AC-S/A DEW DIF
AC-S/A DEW MAX
AC-S/A DEW MIN
AC-S/A TEMP EN
AIR FLOW SWITCH
ALARM OUT
ALARM OUTPUT
AUX DAMPER
AUX FAN OUT
B/P DAMPER MOD
BOX OPEN
BYPASS DAMP
CALC DUCT STATIC
JOHNSON CONTROLS
This enables dew point supply air temperature cooling control (FlexSys units
only).
This is the coil temperature cooling PID loop generated by comparing the DX
coil temperature to 40.0° F. This is a reverse acting PID loop, as the temperature
approaches 40.0° F the output increases. (FlexSys units only).
This is the return air cooling PID loop generated by comparing the return air
temperature to the AC/Econ-R/A SP.
This is the DEW POINT COOLING PID loop generated by comparing the dew
point temperature of the supply air to a derived dew point temperature set point
(FlexSys units only).
This is the supply air cooling PID loop generated by comparing the supply air
temperature to the AC/Econ-S/A SP.
This item is used to program the return air temperature set point for cooling or
economizer operation.
This item is used to program the supply air temperature set point for cooling or
economizer operation.
This item is used to enable and disable cooling Return Air Temperature Control.
This item is used to program the offset from the Slab Temperature that the con-
trol will use in deriving the DEW POINT COOLING PID loop (FlexSys units
only).
This item is used to program the maximum value for the derived cooling dew
point set point (FlexSys units only).
This item is used to program the minimum value for the derived cooling dew
point set point (FlexSys units only).
This item is used to enable and disable cooling Supply Air Temperature Control.
This gives the status of the air proving switch in the unit. It should show ON
when the blower is operating and OFF when the blower is turned off.
This is the status of the digital fault alarm output.
This Item is used to force the normally OPEN contacts that signify a fault to
CLOSE.
This is not used in this product.
This item is used to force the normally OPEN contacts that signifi es the supply
fan is on to CLOSE.
This is the analog output to the by-pass damper (FlexSys units only).
This item is used to force the normally OPEN contacts used to open the VAV
boxes to CLOSE.
This item is used to force an analog output to the bypass damper (FlexSys units
only).
When multiple duct static transducers are used this is the derived duct static
input used by the Unit Controller for the control of the supply fan VFD.
DEFINITION
FORM 145.05-NOM2 (807)
Continued on next page
91
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