Branson B Series - Defrost Controller Replacement

B Series Degreaser Maintenance
Rev G Page 99
5.10 Defrost Controller Replacement
Figure 5-4 Defrost Controller Adjustments
5.10.1 Operation of Keypad
• Normal display: Temperature of freeboard zone.
• To display setpoint: Press “SET” The  LED will flash.
• To change setpoint: Press and hold “SET”. Press ។ to increase setpoint. Press ៓ to
decrease setpoint. Release “SET”.
• To manually activate a defrost cycle: Press ។ for 4 seconds.
• To silence alarm: Press ៓ during the alarm.
5.10.2 Signals and Alarms
• LED ᗂon. Compressor output is active.
• LED ᗂflashing. Compressor output delay is counting.
• LED ¤ on. Defrost output is active.
• LED ¤ flashing. Defrost output delay is counting or drip mode is on.
• Display shows Pr1 and buzzer sounds with intermittent tone: Cabinet probe defective,
cabinet probe wiring defective or temperature is outside probe limits. Defrost will not
operate during E0 failure.
• Display flashes Pr2 and buzzer sounds with intermittent tone: Defrost probe defective,
defrost probe wiring defective or temperature is outside probe limits. Defrost will not
operate during E0 failure.