• dF-1 to dF-8: Defrost schedule 1 to defrost schedule 8
1. In the dEFR screen, press Next to go to the dUR screen.
2. To select the defrost duration, the defrost termination temperature, the defrost drip time, the
evaporator fan delay, and the defrost schedules, press Up and Down.
3. Press Next to save your selection and return to the dEFR screen.
Note: There are a total of 8 defrost schedules available. Set unused slots to --:–.
Setting up the off mode fan setup screens
Before you begin: You can navigate to the following off mode fan setup screens in the condensing
unit control UI:
• EFAN: Off mode setup
• OMFS: Off mode fan state
1. In the EFAN screen, press Next to go to the OMFS screen.
2. To select the speed of the fan for when the refrigeration is off, press Up and Down. Press
Next to save your selection and return to the EFAN screen.
Setting up the time setup screens
Before you begin: You can navigate to the following time setup menu screens in the condensing
unit control UI:
• TIME: Time setup start
• CLK: Clock format
• SETT: Clock: set time
1. In the TIME screen, press Next to open to the CLK screen.
2. To select the clock display mode, press Up and Down.
3. To set the time, press Up and Down, and click Next to move between the hours, minutes, and
AM and PM fields.
4. Press Next to save your selection and return to the TIME screen.
Setting up the backlight screens
Before you begin: You can navigate to the following backlight setup screens in the condensing
unit control UI:
• bKLT: Backlight setup start
• bKLL: Backlight: low-level
• bKLH: Backlight: high-level
1. In the bKLT screen, click Next to go to the bKLL and bKLH screens.
2. To select a backlight brightness level, press Up and Down and press Next to save your
selection and return to the bKLT screen.
Setting up the sensors and transducers
To set up the sensors and transducers in your control system, you must select the correct
sensor type in the condensing unit control module UI for each temperature sensor and pressure
31System 450 Series C450CCU Condensing Unit Control System Technical Bulletin
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