ON-DEMAND Understanding CO₂ Controls

When a CO₂ Alarm Appears, Do You Know What the Controller Is Telling You?

Learn how experienced CO₂ professionals use controller data, alarm history, trends, and system logic to diagnose problems more effectively.

Three expert-led sessions covering Danfoss controls, Micro Thermo rack controllers, and Copeland E3 programming.

Instant access

Watch at your own pace

Certificate included

An Alarm Tells You Where to Look, Not What Part to Replace.

A compressor alarm does not automatically mean the compressor has failed.

An unstable pressure does not always mean the pressure control needs adjustment.

A sensor fault could be the sensor, its wiring, its configuration, or a problem elsewhere in the system.

CO₂ controllers collect a lot of information, but the data only helps if you understand how the controller and refrigeration system work together.

This training helps you read alarms, verify controller data, and investigate the system before changing settings or replacing components.

Close-up of a CO2 alarm system indicating alert status

What You Will Learn

Use Controller Data to Make Better Diagnostic

Device screen showing a CO2 alarm notification

Read Alarm Information

Understand what controller alarms are reporting and where to begin your investigation.

Display showing CO2 sensor error message

Navigate Controller Data

Find the inputs, outputs, settings, logs, and system information needed during diagnosis.

Microthermo control device used in CO2 refrigeration systems

Understand System Logic

See how the controller uses sensors, setpoints, and programmed sequences to operate the rack.

Close-up of a CO2 refrigeration system control panel with display and buttons

Verify Before Making Changes

Compare controller information with actual system conditions before adjusting settings or replacing parts.

Danfoss controller used in CO2 refrigeration systems for temperature regulation

SESSION 1

Danfoss Controls and Alarm Diagnostics

With Chris Brown of Danfoss

A controller alarm is only one part of the diagnosis. You still need to understand what triggered it and how that condition affects the rest of the rack.

This session covers:

  • Understanding the Danfoss pack controller
  • Using Danfoss Service Tool
  • Accessing controller data and alarm logs
  • Identifying pressure and temperature inputs
  • Understanding compressor safety alarms
  • Checking controller configuration and wiring
  • Connecting alarms to actual system conditions
  • Diagnosing the rack as one connected system

SESSION 2

Micro Thermo CO₂ Rack Controllers

With Adam Hughes of Parker Sporlan

Controller screens contain valuable information, but technicians need to know where that information is located and how to use it during troubleshooting.

This session focuses on:

  • Navigating the Micro Thermo controller
  • Understanding rack-control information
  • Reviewing controller inputs and outputs
  • Reading operating conditions and setpoints
  • Using controller data during diagnosis
  • Connecting controller information to system operation
  • Finding useful information without changing the wrong settings
  • Building a more organized troubleshooting process
Close-up of a micro thermo controller used in CO2 refrigeration systems
Close-up of Copeland E3 Controller used in refrigeration systems

SESSION 3

Copeland E3 Rack Programming

With Mike Hill of Copeland

The Copeland E3 controls multiple parts of the refrigeration system. Understanding its structure and programming helps technicians diagnose problems without making unnecessary changes.

This session focuses on:

  • Navigating the Copeland E3 interface
  • Understanding rack-programming structure
  • Reviewing inputs, outputs, and control points
  • Finding setpoints and system information
  • Understanding how programmed logic controls equipment
  • Using controller information during troubleshooting
  • Identifying configuration and communication problems
  • Making informed changes instead of guessing
Diagram illustrating CO2 field troubleshooting process

Who This Is For

Built for Technicians Ready to Go Deeper Into CO₂ Controls

Refrigeration technicians currently working around CO₂ equipment

Technicians moving into controller-based diagnostics

Service managers training their teams

Technicians working with Danfoss, Micro Thermo, or Copeland E3 controls

Anyone who wants to better understand alarms, system logic, and controller data

This is not a basic introduction to CO₂ refrigeration. It is best for technicians who already understand the fundamentals and want to improve their controls knowledge.

What Is Included

Get Immediate Access

Your purchase includes:

  • Three expert-led CO₂ controls sessions
  • Danfoss control and alarm-diagnostic training
  • Micro Thermo rack-controller training
  • Copeland E3 programming training
  • On-demand access through Kajabi
  • Access from desktop or the Kajabi mobile app
  • Certificate of Completion for Continuing Education Hours
  • Access to the RM Hub community

Understanding CO₂ Controls

$197 usd

One-time payment

FAQ

frequently asked questions

Is this course suitable for someone completely new to CO₂?

This course is best for technicians who already understand the basic operation of a CO₂ system and are ready to learn more about controllers, alarms, programming, and system logic.

The three sessions are on demand. You can watch them through Kajabi at your own pace.

The training covers Danfoss controls, Micro Thermo CO₂ rack controllers, and Copeland E3 programming.

No single course can replace field experience or platform-specific practice. This training will help you better understand controller navigation, alarm diagnosis, system logic, and programming concepts.

No. You can follow the training without having a controller in front of you. Access to the equipment may help you apply what you learn afterward.

Yes. You will receive a Certificate of Completion after meeting the course requirements.

Yes. Your purchase includes access to the RM Hub community, where you can connect with other refrigeration professionals and access additional resources.

Stop Treating Every Controller Alarm Like a Parts List

Use alarms, trends, inputs, outputs, and system logic to investigate what is actually happening on the rack.

Learn how industry professionals approach Danfoss, Micro Thermo, and Copeland E3 controls.