Prep & training only: TradeStarter provides EPA 608 exam preparation and certificates of completion. Official EPA 608 certification must be taken through an EPA-approved certifying organization.
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Type III - Low-Pressure Appliances

Type III covers low-pressure appliances such as centrifugal chillers using refrigerants like R-123 and R-11 that operate below atmospheric pressure.

Lesson 1
Low-Pressure Chillers Overview
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Lesson 2
Chiller Refrigerants
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Lesson 3
Recovery on Low-Pressure Systems
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Lesson 4
Leak Testing Low-Pressure Systems
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Lesson 5
Purging Air and Non-Condensables
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Lesson 6
Water in Low-Pressure Systems
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Lesson 7
Tube Leaks
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Lesson 8
Chiller Safety
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Lesson 9
Type III Test Traps
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Lesson 10
Type III Practice Review
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Online trade-school prep for the EPA 608 technician exam.

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TradeStarter provides EPA 608 exam preparation and certificates of completion. Official EPA 608 certification must be taken through an EPA-approved certifying organization.

© 2026 TradeStarter. A prep & training product. Not an EPA certifying organization.

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