A525AEDN-0203C ELECTR0NIC REFRIGERATION CONTROLLER w/Adaptive Defrost
Description:
The A52x Electronic Refrigeration Controller with Adaptive Defrost (A52x Controller) provides refrigerated space control and defrost control for medium and low temperature refrigeration applications. The A525 Controller has five line-voltage relays to control the compressor, defrost functions, high and low speed evaporator fans, and userprovided alarms. The controller can also control resistive heat, hot-gas bypass, off-cycle defrost, and two-speed evaporator fans. The adaptive defrost feature adjusts the defrost schedule to the minimum number of defrost intervals required to maintain peak efficiency, save energy, and maintain consistent space temperature. The A52x Controller has an IP65 enclosure with holes in the enclosure base for wall-surface mounting. An optional DIN Rail mounting kit (Part No. BKT524-1K) is also available. Refer to the A52x Series Electronic Refrigeration Controller with Adaptive Defrost Product Bulletin (LIT-12012987) for important product application information.
Applications:
The A52x Controller is designed for single condenser evaporator refrigeration systems such as walk-in coolers and freezers.
Features and Benefits:
- Plain Language Programming—Displays a scrolling alpha-numeric message system that tells you what you need to program.
- Adaptive or Time-Based Defrost—Offers you a choice between a conventional timebased defrost or the more advanced adaptive defrost that learns and automatically adjusts the defrost schedule of your system to improve efficiency.
- Meets Title 24 Evaporator Fan Efficiency Standards—Allows you to program the system to determine when to operate the fan at high-speed, low-speed, or when the fan should be set to off. This provides better air circulation in the conditioned space and meets energy efficiency standards.
- Complete Integration with PENN Quick Response Expansion Valve and Precision Superheat Controller—Allows you to adjust the Superheat levels for optimal efficiency and to select the type of refrigerant that you want the system to use.
- Alarming—Allows you to program the A52x Controller for high temperature conditions, low temperatures, door open, man-in-room, refrigeration leaks, high system pressure, low pressure, and sensor failures. The system displays each failure in plain language to avoid confusion about the cause of an alarm.
- Reporting and Recording—Automatically records temperature at desired intervals. This feature improves food safety and allows you to create reports showing that food is stored at the required temperatures.
- Program Copy and Firmware Updates— Features a USB port that you can use to upload your preferred settings or to update the operating firmware when new versions are available.
