RETA Certified Industrial Refrigeration Operator (CIRO) Practice Exam 2025 - Free CIRO Practice Questions and Study Guide

In a two-stage refrigeration system, the normal discharge pressure for the low stage compressor is typically around 31 PSIG. This value is representative of typical operating conditions for most industrial refrigeration applications, where the low stage operates in a range suitable for achieving efficient cooling of the products or spaces being refrigerated.

This pressure allows for effective heat exchange, supporting optimal performance while avoiding issues like compressor overload or excessive cycling. Additionally, maintaining this discharge pressure ensures that the system is operating within designed thermal parameters, promoting consistent refrigeration cycles and prolonging the life of the compressor.

Understanding the expected values for discharge pressure is crucial for operators to troubleshoot and maintain the system effectively, identifying any anomalies or performance issues that may arise if the pressures deviate significantly from these standards.