Refrigeration Circuit › Refrigeration diagnostics

Advanced

Diagnose undercharge, overcharge, restrictions and non-condensables from pressures, temperatures and the temperature split.

Reading the whole system together: superheat, subcooling, splits and approach, with the preliminary checks that rule out airflow first.

Before this skill

Required

• Airflow for capacity
• Superheat and subcooling

HVAC Excellence competency codes

• DTR-002
• SP-020
• RAC-108
• SP-012
• SP-022

Courses that teach this

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Career paths that include this skill

• Installation Technician Recommended
• Service Technician Required
• Maintenance Technician Recommended
• Commercial & BAS Technician Required
• Refrigeration Technician Required
• Service Manager Required
• Installation Manager Elective
• Instructor Recommended