UnIT ConTroller operaTIon
www.DaikinApplied.com 53 IOM 1206-7 • TRAILBLAZER
™
MODEL AGZ CHILLERS
Table 52: Conguration Group 4
Description Default Range
Condenser Target - 100% Circuit Capacity 37.78°C(100 °F) 35 to 46.11°C (95 to 115°F)
Condenser Target - 67% Circuit Capacity 37.78°C(100 °F) 35 to 40.56°C (95 to 105°F)
Condenser Target - 33% Circuit Capacity 26.67°C (80°F) 23.89 to 29.44°C (75 to 85°F)
Fan Stage Up Deadband 1 5.56°C (10°F) 2.78 to 8.33°C (5 to 15°F)
Fan Stage Up Deadband 2 2.78°C (5°F) 2.78 to 5.56°C (5 to 10°F)
Fan Stage Up Deadband 3 2.78°C (5°F) 2.78 to 5.56°C (5 to 10°F)
Fan Stage Down Deadband 4 2.78°C (5°F) 2.78 to 5.56°C (5 to 10°F)
Fan Stage Down Deadband 3 2.78°C (5°F) 2.78 to 5.56°C (5 to 10°F)
Fan Stage Down Deadband 2 2.78°C (5°F) 2.78 to 5.56°C (5 to 10°F)
Fan Stage Down Deadband 1 2.78°C (5°F) 2.78 to 5.56°C (5 to 10°F)
Special Set Point Operation
EXV settings are only visible if the unit is congured with
electronic expansion valves. The EXV position set point is not
changeable unless the unit switch is off.
EXV Position set point on each circuit follows the actual EXV
position while EXV Control = Auto. When EXV Control =
Manual, the position set point will be changeable.
Table 53: Suction Superheat Target 33%
Unit Model Default
Models 75 to 180 4.44°C (8°F)
Models 190 to 240 5.56°C (10°F)
Security
All set points are protected using passwords. A four-digit
password provides operator access to changeable parameters.
Service level passwords are reserved for authorized service
personnel. See Passwords on page 84 for various levels of
access.
Entering Passwords
Passwords are entered on the rst screen on the unit
controller.
If the wrong password is entered, a message will temporarily
appear stating this. If no valid password is active the active
password level displays “none.”
Editing Setpoints
After a valid password has been entered at the unit controller,
set points may be changed. If the operator attempts to edit a
set point for which the necessary password level is not active,
no action will be taken.
Once a password has been entered, it remains valid for 10
minutes after the last key-press on the unit controller.
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