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Parameter description and options – York ECO2 YPAL 050 User Manual

Page 144

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144

JOHNSON CONTROLS

FORM 100.50-NOM6 (1207)

Parameter Description and Options

TABLE 7-1 – DEFINITIONS (CONTINUED)

Continued on next page

MENU ITEM

DEFINITION

DIRTY FILTER SWITCH INSTALLED

THIS PARAMETER MUST BE SET TO ON TO ENABLE THE DIRTY

FILTER FEATURE ON THE UNIT. A DIRTY FILTER SWITCH MUST

ALSO BE INSTALLED FOR THIS FEATURE TO FUNCTION

DUCT PRESSURE SETPOINT

THE UNIT CONTROLLER VARIES THE SPEED OF THE SUPPLY

FAN ON A VAV UNIT TO MAINTAIN THIS PROGRAMMED

SETPOINT

DUCT PRESSURE SHUTDOWN SETPOINT

IF THE DUCT STATIC PRESSURE ON A VAV UNIT EXCEED THIS

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

EXHAUST TURN OFF

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

OF THE ECONOMIZER DAMPER TO TURN OFF THE EXHAUST

FAN

ECONOMIZER DAMPER POSITION FOR

EXHAUST TURN ON

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

OF THE ECONOMIZER DAMPER TO TURN ON THE EXHAUST FAN

ECONOMIZER FIRST STAGE SETPOINT

ON A CONSTANT VOLUME UNIT THE UNIT CONTROLLER WILL

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

COOLING

THIS IDENTIFIES IF THE UNIT CONTROLLER IS USING OUTDOOR

AIR TO SATISFY THE COOLING DEMAND, OFF OR ON

ECONOMIZER LOADING ENABLE

THIS PARAMETER MUST BE TURNED ON TO ENABLE

ECONOMIZER LOADING

ECONOMIZER MINIMUM POSITION

THIS PARAMETER ESTABLISHES THE POSITION OF THE

OUTDOOR DAMPER WHEN THE ECONOMIZER IS INACTIVE AND

THE UNIT IS IN THE OCCUPIED MODE

ECONOMIZER OUTSIDE AIR ENTHALPY

SETPOINT

THIS IS THE OUTDOOR ENTHALPY SETTING WHICH

DETERMINES WHEN TO SWITCH INTO AND OUT OF

ECONOMIZER OPERATION IN SINGLE ENTHALPY ECONOMIZER

MODE

ECONOMIZER OUTSIDE AIR TEMP ENABLE

SETPOINT

THIS IS THE OUTDOOR TEMPERATURE WHICH DETERMINES

WHEN TO SWITCH INTO AND OUT OF ECONOMIZER OPERATION

ECONOMIZER SECOND STAGE SETPOINT

ON A CONSTANT VOLUME UNIT THE UNIT CONTROLLER WILL

TRY AND MAINTAIN THE SUPPLY AIR TEMPERATURE AT THIS

SETPOINT IN THE ECONOMIZER MODE WITH A SECOND STAGE

COOLING CALL

ERV INSTALLED

THIS PARAMETER MUST BE TURNED ON IF AN ENERGY

RECOVERY VENTILATOR IS INSTALLED. THIS FEATURE IS

CURRENTLY NOT AVAILABLE ON THESE UNITS

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