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148
JOHNSON CONTROLS
FORM 100.50-NOM6 (1207)
Parameter Description and Options
TABLE 7-1 – DEFINITIONS (CONTINUED)
Continued on next page
MENU ITEM DEFINITION
INTELLI-START OPERATION ENABLE
THIS FEATURE IS ONLY AVAILABLE ON CONSTANT VOLUME
UNITS WITH A SPACE SENSOR USING THE INTERNAL
SCHEDULE. THIS OPTION BRINGS THE UNIT UP TO THE CV
OCCUPIED COOLING OR CV OCCUPIED HEATING SETPOINTS
PRIOR TO THE BEGINNING OF OCCUPIED OPERATION.
LAST ALARM 1 THIS PARAMETER IDENTIFIES THE MOST RECENT ALARM
LAST ALARM 2 THIS PARAMETER IDENTIFIES THE ALARM PRECEDING ALARM 1
LAST ALARM 3 THIS PARAMETER IDENTIFIES THE ALARM PRECEDING ALARM 2
LAST ALARM 4 THIS PARAMETER IDENTIFIES THE ALARM PRECEDING ALARM 3
LAST ALARM 5 THIS PARAMETER IDENTIFIES THE ALARM OLDEST IN HISTORY
LEAD-LAG EQUALIZE COMPRESSOR RUN TIME
ENABLED
THIS PARAMETER ENABLES LEAD LAG OPERATION FOR THE
COMPRESSOR, OFF OR ON
LIMIT SWITCH #1
THIS GIVES THE STATUS OF THE BINARY INPUT FROM THE
LIMIT SWITCH TO THE UNIT CONTROLLER FOR HEAT SECTION 1
IN SECONDS. OFF - FAULTED, ON - NORMAL
LIMIT SWITCH #2
THIS GIVES THE STATUS OF THE BINARY INPUT FROM THE
LIMIT SWITCH TO THE UNIT CONTROLLER FOR HEAT SECTION 2
IN SECONDS. OFF - FAULTED, ON - NORMAL
LIMIT SWITCH #3
THIS GIVES THE STATUS OF THE BINARY INPUT FROM THE
LIMIT SWITCH TO THE UNIT CONTROLLER FOR HEAT SECTION 3
IN SECONDS. OFF - FAULTED, ON - NORMAL
LOADSHED
THIS FEATURE CAN BE USED TO TEMPORALLY REDUCE THE
ELECTRICAL CONSUMPTION OF THE UNIT BY TURNING OFF
ALL OF THE ACTIVE COMPRESSORS. THIS FEATURE IS ONLY
AVAILABLE THROUGH A COMMUNICATED INPUT.
LOW AC SUPPLY VOLTAGE DETECTED
THIS PARAMETER IDENTIFIES IF THE SUPPLY VOLTAGE TO THE
CONTROL IS OUTSIDE THE ACCEPTABLE LIMITS. OFF = WITHIN
LIMITS, ON = FAULTED, OUTSIDE LIMITS
LOW AMBIENT ECONOMIZER MINIMUM
POSITION
THIS PARAMETER ESTABLISHES THE MINIMUM POSITION
FOR THE OUTDOOR AIR DAMPER DURING LOW AMBIENT
OPERATION
LOW AMBIENT ECONOMIZER SETPOINT
THIS PARAMETER IS USED TO TURN ON AND SET THE
OUTDOOR TEMPERATURE AT WHICH THIS FEATURE BECOMES
ACTIVE. A 0 VALUE TURNS THE FEATURE OFF. THIS FEATURE
REDUCES THE MINIMUM VENTILATION POSITION OF THE
OUTDOOR DAMPER DURING TIMES OF COLD OUTDOOR
TEMPERATURES
LOW AMBIENT KIT INSTALLED
THIS PARAMETER MUST BE TURNED ON IF A LOW AMBIENT
VFD IS INSTALLED ON THE CONDENSER FAN. THIS ALLOWS
COMPRESSOR OPERATION BELOW 45.0° F
LPS1
THIS IS THE STATUS OF THE BINARY INPUT FROM THE LOW
PRESSURE SWITCH FOR COMPRESSOR SYSTEM 1 TO THE
UNIT CONTROLLER. ON - OKAY, OFF - FAULTED.
LPS2
THIS IS THE STATUS OF THE BINARY INPUT FROM THE LOW
PRESSURE SWITCH FOR COMPRESSOR SYSTEM 2 TO THE
UNIT CONTROLLER. ON - OKAY, OFF - FAULTED.