Daikin MicroTech III Operation Manuals page 45

EconChangover is an adjustable item used to set how
economizer operation will be enabled
Econo FDD is an adjustable item used to enable or disable the
Economizer Fault Detection and Diagnostics function
Clg Stage Time is an adjustable item used to set a minimum
time period between compressor stage changes .
Chgover Temp is an adjustable item which sets the OA dry
bulb temperature at which the units changes over to the
economizer operation .
Clg DB is an adjustable item which sets a dead band around
the discharge cooling setpoint parameter . For example, if the
discharge cooling setpoint parameter is set to 55ºF and the Clg
DB parameter is set to 2ºF the dead band around the set point
would be from 56 .0ºF to 54 .0ºF .
Econo Period is an adjustable item which sets the "sampling
time" used in the PI control function of the economizer actuator .
Econo Gain is an adjustable item which sets the "Gain" used
in the PI control function of the economizer actuator .
Econo PAT is an adjustable item which sets the "project ahead
time" used in the PI control function of the economizer actuator .
Econo Max Chg is an adjustable item that sets the maximum
value for an increase or decrease of the economizer actuator .
Flush Econo is an adjustable item used to enable the
waterside economizer flush mode sequence.
Econo Diff is an adjustable item which sets a differential
above the EconChgovrT parameter . Economizer operation is
disabled when the OA Temp parameter indicates a value above
the EconChgovrT= parameter by more than this differential .
EWT Diff is an adjustable item that sets a differential below
the MAT at which waterside economizer operation is enabled
based on entering water temperature .
Min Clg Spt is an adjustable item which sets the minimum
cooling discharge set point for use with a cooling discharge air
temperature set point reset schedule .
Min Clg Spt @ is an adjustable item which sets the value of
the sensor input, selected with the Cooling Reset parameter,
at which the DAT cooling setpoint parameter is reset to the
minimum DAT cooling setpoint value .
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Max Clg Spt is an adjustable item which sets the maximum
cooling discharge set point for use with a cooling discharge air
temperature set point reset schedule .
Max Clg Spt @ is an adjustable item which sets the value of
the sensor input, selected with the Cooling Reset parameter,
at which the DAT cooling setpoint parameter is reset to the
maximum DAT cooling setpoint value .
Max OAT Lmt is an adjustable item which sets the maximum
outdoor air temperature for the applicable climate zone above
which economizer should not be enabled .
Min OAT Lmt is an adjustable item which sets the minimum
outdoor air temperature for the applicable climate zone below
which economizer should be enabled . .
Calibrate OAD is an adjustable item used to initiate the
calibration function that captures the command position at which
the outdoor damper position end switches open and close at the
closed and open ends of the damper modulation range .
PosSwOpen is an item that indicates the captured command
position at which the outdoor damper position end switch
closes at the open end of the damper modulation range . This
parameter can also be manually adjusted.
Max Sw Diff is an item that indicates the captured switch
differential at the open (maximum) end of the damper
modulation. This parameter can also be manually adjusted.
PosSwClose is an item that indicates the captured command
position at which the outdoor damper position end switch
closes at the closed end of the damper modulation range . This
parameter can also be manually adjusted.
Min SW Diff is an item that indicates the captured switch
differential at the closed (minimum) end of the damper
modulation. This parameter can also be manually adjusted.
OAD Sw Status is a status only item that indicates the
current condition of the damper end switch position input
(Open/Closed) .
45 OM 920-6 • MICROTECH UNIT CONTROLLER
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