Unit Controller Operation
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IOM 1207-6 • TRAILBLAZER
®
MODEL AGZ CHILLERS
Table 49:
Configuration 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)
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
See Passwords on page 108 for various levels of
access.
Entering Passwords
Passwords are entered on the first 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.
