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92
JOHNSON CONTROLS
FORM 145.05-NOM2 (807)
MENU ITEM
DEFINITION
COIL DIF STATIC
This is the pressure drop across the evaporator coil (FlexSys units only).
COIL LEAV TEMP
This is the temperature of the air leaving the evaporator coil (FlexSys units
only).
C/W MIN
This item is used to program the minimum position set point for the chilled
water valve.
C/W VLV
This item is used to force an analog output to the chilled water valve.
C/W MOD
This is the analog output to the chilled water valve.
CV FAN
This item is used to force the binary output to the constant volume fan to ON.
CV FAN ENABLE
This gives the status of the digital output for a constant volume fan.
DDC OFF SWITCH
This indicates if the binary input from the OFF contact of the ON/OFF/AUTO
switch is energized or not.
DDC ON SWITCH
This indicates if the binary input from the ON contact of the ON/OFF/AUTO
switch is energized or not.
DIRTY FILTER
This gives the status of the dirty fi lter switch. OFF indicates normal operation
and ON indicates a dirty fi lter.
DUCT HIGH STATIC
This gives the status of the duct high static switch. OFF indicates the duct static
pressure is above the setting of the switch. ON indicates normal operation.
DUCT STATIC 1 -”WC
This is the duct static pressure input from the number 1 duct static pressure
transducer.
DUCT STATIC 2 - “WC
This is the duct static pressure input from the number 2 duct static pressure
transducer.
DX B/P PRESS
This is the by-pass damper PID loop generated by comparing the differential
duct static pressure across the chilled water coil to the minimum duct static pres-
sure set point (FlexSys units only).
DX B/P S/A TMP
This is the by-pass damper PID loop generated by comparing the supply air tem-
perature to the supply air temperature set point (FlexSys units only).
ECON R/A TEMP
This is the return air economizer PID loop generated by comparing the return air
temperature to the AC/Econ-R/A SP.
ECON S/A DEW
This is the dew point economizer PID loop generated by comparing the dew
point temperature of the supply air to a derived dew point temperature set point
AC/Econ-S/A SP (FlexSys units only).
ECON S/A TEMP
This is the supply air economizer PID loop generated by comparing the supply
air temperature to the AC/Econ-S/A SP.
ECON VALVE
This item is used to force an analog output to the air side economizer damper
motor.
ECON VLV MIN
This item is used to program in the minimum position for the water side econo-
mizer valve.
ECON VLV MOD
This is the analog output to the economizer damper on an air side economizer.
ECON-R/A TMP EN
This item is used to enable or disable return air temperature economizer control.
ECON-S/A TMP EN
This item is used to enable or disable supply air temperature economizer control.
TABLE 16 - DEFINITIONS (CONT.)
Parameter Description and Options
Continued on next page
Содержание YSCD
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Страница 105: ...105 JOHNSON CONTROLS FORM 145 05 NOM2 807 LD13009 8 FIG 11 WIRING DIAGRAM POWER CIRCUIT ...
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Страница 107: ...107 JOHNSON CONTROLS FORM 145 05 NOM2 807 8 FIG 13 WIRING DIAGRAM EXPANSION CONTROL BOARD LD13011 ...