Application - PENN Controls - A5xx - Electronic Refrigeration, Defrost, and Multi-Purpose Controller - A52x Wall‐Mount Refrigeration and Defrost Controller

A5xx Series Wall Mount Refrigeration and Defrost Controllers Installation Guide

brand
PENN Controls
prodname
A52x Wall‐Mount Refrigeration and Defrost Controller
doctype
Installation Guide
docpartnumber
24-7664-3310
docrev
E
revised_modified
2020-01-24
Important: Use the A5xx Series Wall Mount Refrigeration and Defrost Controller only as an operating control. Where failure or malfunction of the A5xx Controller could lead to personal injury or property damage to the controlled equipment or other property, additional precautions must be designed into the control system. Incorporate and maintain other devices, such as supervisory or alarm systems or safety or limit controls, intended to warn of or protect against failure or malfunction of the A5xx Controller.
Important: Utiliser ce A5xx Series Wall Mount Refrigeration and Defrost Régulateur uniquement en tant que dispositif de contrôle de fonctionnement. Lorsqu'une défaillance ou un dysfonctionnement du A5xx Régulateur risque de provoquer des blessures ou d'endommager l'équipement contrôlé ou un autre équipement, la conception du système de contrôle doit intégrer des dispositifs de protection supplémentaires. Veiller dans ce cas à intégrer de façon permanente d'autres dispositifs, tels que des systèmes de supervision ou d'alarme, ou des dispositifs de sécurité ou de limitation, ayant une fonction d'avertissement ou de protection en cas de défaillance ou de dysfonctionnement du A5xx Régulateur.

The A5xx Series Wall Mount Refrigeration and Defrost Controller provides refrigerated space and defrost control for low and medium temperature refrigeration applications. The A5xx Controller includes five line-voltage, dry-contact relays to control the compressor, defrost heater or solenoid, evaporator fans, and user-provided alarm devices.

The controller can control two-speed evaporator fans and resistive heat, hot-gas bypass, or passive defrost. You can use the A5xx Controller’s adaptive defrost to adjust the defrost schedule to the minimum number of defrost intervals that you require to achieve peak efficiency, save energy, and maintain consistent space temperature.

Refer to the A5xx Series Wall Mount Refrigeration and Defrost Controller Technical Bulletin (LIT-12012405) and the A5xx Series Wall Mount Refrigeration and Defrost Controller Quick Reference Card (part no. 24-08809-00111) for more information about setting up, operating, and troubleshooting the A5xx Controller.

Some A5xx Controller models do not include sensors and you must purchase sensors separately. See Ordering information and Table 1 for more information.