Lesson 1
Evaporators
Principles and types, flooded vs. dry expansion, controlled pressure receivers, heat-transfer factors, and uses in chillers, freezers, ice makers and intercoolers.
Industrial ammonia refrigeration
Ammonia Evaporators, Condensers & Controls
How the heat-transfer side of an ammonia system is designed, run and maintained, from flooded evaporators and hot gas defrost to evaporative condensers and relief valves. 2 hours online, in English or Spanish.
- Duration
- 2 hr
- Lessons
- 4
- Credits
- 0.2 CEU
- Cert. valid
- 3 yr
- Prerequisites
- None
Four lessons, four components
Each lesson focuses on one part of the heat-transfer and control side of an ammonia refrigeration system.
Lesson 2
Defrost systems
Why ice builds on coils, hot gas and soft hot gas defrost, and electric, water, glycol spray and room air methods.
Lesson 3
Evaporative condensers
Air-cooled vs. water-cooled vs. evaporative, components, selection, wet-bulb effects and Legionella control.
Lesson 4
Control valves & switches
Safety relief, hand expansion and float valves, shutoff valves, liquid level monitoring, and ASHRAE and ASME relief valve requirements.
Who it's for
- Refrigeration and HVAC technicians
- Chemical, process and environmental engineers
- Facilities managers and maintenance supervisors
- Industrial safety specialists and compliance officers
You'll be able to
- Weigh flooded vs. dry expansion evaporators
- Explain how soft hot gas defrost protects large coils
- Choose the right evaporative condenser
- Tell mechanical from electronic liquid-level monitoring
- Select and safely operate refrigeration valves
FAQ
Who is this course for?
Professionals who operate, maintain or oversee industrial ammonia refrigeration systems, including refrigeration and HVAC technicians, chemical, process and environmental engineers, facilities managers, maintenance supervisors, industrial safety specialists and compliance officers.
Are there prerequisites?
No. There are no prerequisites, and the course is available in English and Spanish.
How long is the certificate valid?
You can download your certificate as soon as you pass. It is valid for three years, and employers are advised to provide refresher training every three years.
Does it cover safety relief valves?
Yes. Lesson 4 covers control valves and switches, including the ASHRAE and ASME standards and requirements for installing and setting safety relief valve pressure in ammonia systems.
Keep the loop running.
$79.99 per person, with bulk pricing for teams. 100% online, available 24/7, with read-aloud content. New to ammonia? Start with Ammonia Refrigeration Basics & Safety Awareness.
Enroll now