Parameter Description and Options

 

FORM 100.50-NOM6 (1207)

TABLE 7-1 – DEFINITIONS (CONTINUED)

 

 

 

MENU ITEM

DEFINITION

 

THIS PARAMETER MUST BE SET TO ON TO ENABLE THE DIRTY

DIRTY FILTER SWITCH INSTALLED

FILTER FEATURE ON THE UNIT. A DIRTY FILTER SWITCH MUST

 

ALSO BE INSTALLED FOR THIS FEATURE TO FUNCTION

 

THE UNIT CONTROLLER VARIES THE SPEED OF THE SUPPLY

DUCT PRESSURE SETPOINT

FAN ON A VAV UNIT TO MAINTAIN THIS PROGRAMMED

 

SETPOINT

 

IF THE DUCT STATIC PRESSURE ON A VAV UNIT EXCEED THIS

DUCT PRESSURE SHUTDOWN SETPOINT

VALUE THE UNIT WILL SHUT DOWN THE FAN AND LOCK OUT

 

THE UNIT

DUCT STATIC READING

THIS PARAMETER GIVES THE CURRENT VALUE OF THE DUCT

STATIC PRESSURE INPUT

 

ECONOMIZER DAMPER OUTPUT STATUS

THIS GIVES THE STATUS OF THE UNIT CONTROLLER OUTPUT

TO THE ECONOMIZER DAMPER IN %

 

ECONOMIZER DAMPER POSITION FOR

WHEN ON/OFF EXHAUST IS BEING USED THIS IS THE POSITION

OF THE ECONOMIZER DAMPER TO TURN OFF THE EXHAUST

EXHAUST TURN OFF

FAN

 

ECONOMIZER DAMPER POSITION FOR

WHEN ON/OFF EXHAUST IS BEING USED THIS IS THE POSITION

EXHAUST TURN ON

OF THE ECONOMIZER DAMPER TO TURN ON THE EXHAUST FAN

 

ON A CONSTANT VOLUME UNIT THE UNIT CONTROLLER WILL

ECONOMIZER FIRST STAGE SETPOINT

TRY AND MAINTAIN THE SUPPLY AIR TEMPERATURE AT THIS

SETPOINT IN THE ECONOMIZER MODE WITH A FIRST STAGE

 

 

COOLING CALL

ECONOMIZER INSTALLED

THIS PARAMETER MUST BE TURN ON TO ENABLE ECONOMIZER

OPERATION

 

ECONOMIZER IS CURRENTLY USING FREE

THIS IDENTIFIES IF THE UNIT CONTROLLER IS USING OUTDOOR

COOLING

AIR TO SATISFY THE COOLING DEMAND, OFF OR ON

ECONOMIZER LOADING ENABLE

THIS PARAMETER MUST BE TURNED ON TO ENABLE

ECONOMIZER LOADING

 

 

THIS PARAMETER ESTABLISHES THE POSITION OF THE

ECONOMIZER MINIMUM POSITION

OUTDOOR DAMPER WHEN THE ECONOMIZER IS INACTIVE AND

 

THE UNIT IS IN THE OCCUPIED MODE

 

THIS IS THE OUTDOOR ENTHALPY SETTING WHICH

ECONOMIZER OUTSIDE AIR ENTHALPY

DETERMINES WHEN TO SWITCH INTO AND OUT OF

SETPOINT

ECONOMIZER OPERATION IN SINGLE ENTHALPY ECONOMIZER

 

MODE

ECONOMIZER OUTSIDE AIR TEMP ENABLE

THIS IS THE OUTDOOR TEMPERATURE WHICH DETERMINES

SETPOINT

WHEN TO SWITCH INTO AND OUT OF ECONOMIZER OPERATION

 

ON A CONSTANT VOLUME UNIT THE UNIT CONTROLLER WILL

ECONOMIZER SECOND STAGE SETPOINT

TRY AND MAINTAIN THE SUPPLY AIR TEMPERATURE AT THIS

SETPOINT IN THE ECONOMIZER MODE WITH A SECOND STAGE

 

 

COOLING CALL

 

THIS PARAMETER MUST BE TURNED ON IF AN ENERGY

ERV INSTALLED

RECOVERY VENTILATOR IS INSTALLED. THIS FEATURE IS

 

CURRENTLY NOT AVAILABLE ON THESE UNITS

Continued on next page

144

JOHNSON CONTROLS

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York YPAL 061, YPAL 050, YPAL 051, YPAL 060 manual 144